WO2009065272A1

WO2009065272A1 - A cleaning brush

Info

Publication number: WO2009065272A1
Application number: PCT/CN2007/071108
Authority: WO
Inventors: Dexin Liu
Original assignee: Dexin Liu
Priority date: 2007-11-21
Filing date: 2007-11-21
Publication date: 2009-05-28

Abstract

A cleaning brush is composed of a brush head(1), a main body(2) and a brush rod(3). The brush head(1) is mounted on the main body(2), and a holding groove(23) is formed in the main body(2) for inserting the brush rod(3). A rotating loop(24) is fixed in the holding groove(23), location holes(25) are shaped at both sides of the holding groove(23), pivots(242) are shaped at both sides of the rotating loop(24), and the pivots(242) are wedged in the location holes(25). The end of the brush rod(3) connecting with the main body(2) is sleeved in the rotating loop(24), and a protruding block(301) is mounted on said end of the brush rod(3) so as to prevent the brush rod(3) from departing from the rotating loop(24). Further the end of the brush rod(3) connecting with the main body(2) is provided with outer thread, a flute(22) is provided on the main body(2) for inserting the end of the brush rod(3) with outer thread, and inner thread is provided in the flute(22) in order to cooperate with the outer thread of the brush rod(3). Thread fit between the brush rod(3) and the main body(2) urge both expanding orientation exactly, effectively and expediently.

Description

Instruction manual

#细 or

[1] The present invention relates to a cleaning brush relating to a folding structure of a brush bar and a replacement structure of the brush head.

[2] Generally, the structure of the cleaning brush is as shown in Figs. 1, 2, and is composed of a brush head 10, a main body 20, and a brush bar 30. The brush head 10 is directly fixed to the main body 20 and is not detachable and replaceable. The brush bar 30 is a telescopic rod member, and one end thereof is pivotally connected to the main body 20 by a rotating member 40 similar to that shown in FIG. 1. The head of the end has a protrusion 50, and the main body 20 has an elastic piece 60 on the elastic piece 60. There is a recess 70 for the bump 50 to be snapped in. Using the crucible, as shown in FIG. 3, the brush rod 30 is rotated perpendicularly to the main body 20 by means of the rotating member 40. Thereafter, the projection 50 is engaged in the recess 70 of the elastic piece 60 to realize the brush rod 30 and the main body 20. The vertical positioning enables the brush bar 30 to stand up, and then the brush bar 30 is stretched and positioned for convenient operation. Without using the cymbal, the brush rod 30 is rotated horizontally with the rotating member 40 to make the brush rod 30 fall down, and the brush rod 30 is completely contracted, so that the entire cleaning brush volume is minimized, and the packaging can be conveniently carried out. Collection.

[3] Careful analysis of the existing cleaning brush structure, it is not difficult to find the following shortcomings:

[4] 1. The positioning between the brush rod 30 and the main body 20 is realized by the elastic action of the elastic piece 60 to make the groove 70 and the convex block 50 cooperate, the structure is complicated, the manufacturing is troublesome, and the use of the day is long. The elasticity of the elastic piece 60 is weakened, which is liable to cause positioning failure and affect the deployment;

[5] Second, the brush head 10 is directly fixed on the main body 20 by glue or the like, and cannot be replaced, so that the function of the cleaning brush is single and the use range is small.

[6] In view of this, the inventors have improved the existing cleaning brush structure, and developed an accurate positioning and positioning.

It is effective, and you can choose the multi-purpose cleaning brush that replaces the brush head according to your needs, ensuring smooth deployment, convenient operation and wider application range.

[7] The main object of the present invention is to provide a cleaning brush which is accurate and effective in positioning and positioning, and ensures smooth deployment and convenient operation.

[8] A secondary object of the present invention is to provide a cleaning brush which can be selected to replace the brush head as needed. It is wider.

In order to achieve the above object, the solution of the present invention is:

A cleaning brush is composed of a brush head, a main body and a brush bar. The brush head is assembled on the main body, and a receiving groove for inserting the brush bar is formed on the main body, and a rotating ring is installed in the receiving groove, and the two sides of the receiving groove are formed. a positioning hole, a pivot shaft is formed on both sides of the rotating ring, the pivot pin is caught in the positioning hole, and one end of the brush bar connected to the main body is sleeved in the rotating ring, and the end of the brush bar prevents the brush bar from coming out of the rotating ring The convex card has an external thread at one end of the brush rod connected to the main body, and the main body has a groove for inserting the external thread end of the brush rod, and the groove has an internal thread matched with the external thread of the brush rod.

The ends of the pivots on both sides of the rotating ring further form a block, and the pivot is stuck in the positioning hole of the receiving groove, and the block is located outside the positioning hole.

The groove wall of the accommodating groove is designed with an arc-shaped wall corresponding to the outer shape of the rotating ring, and the rotating ring is located between the two curved walls, and the rotating ring is rotatably mounted by the cooperation between the curved wall and the rotating ring. The brush rod in the accommodating groove is a telescopic rod member, which is formed by arranging the inner rod and the outer tube. The diameter of the outer tube of the brush rod is smaller than the diameter of the accommodating groove but slightly larger than the width of the grooving groove of the accommodating groove. The diameter is slightly smaller than the width of the notch of the receiving groove. The main body forms a sliding groove at a portion where the brush head is assembled, and the brush head is fixed on the sliding bar, and the slider is slidably inserted into the sliding groove by the end of the sliding groove, so that the brush head is detachably mounted on the main body.

The inner wall of the chute and the surface of the slider form anti-slip bumps and pockets.

After the above structure is used, the present invention utilizes the threaded engagement of the brush bar and the main body due to the abandonment of the elastic piece in the prior structure, so that the deployment position of the brush bar and the main body is more accurate and effective, and the operation is convenient. In addition, since the brush head and the main body can be used for the plug-in assembly structure, the brush heads of various functions can be easily replaced as needed, and the use range is wider.

Country deletion

1 is a schematic structural view of a conventional cleaning brush;

2 is an exploded perspective view of a conventional cleaning brush;

Figure 3 is a cross-sectional view showing the state of use of the conventional cleaning brush;

Figure ₄ is a schematic view of the structure of the present invention;

Figure 5 is an exploded perspective view of the present invention; Figure 6 is a cross-sectional view showing the state of use of the present invention;

[23] Figure 7 is a schematic view showing the structure of the brush head and the main body of the present invention;

Figure 8 is a partial enlarged view of Figure 7.

difficult

Referring to Figure 4, there is shown a preferred embodiment of the cleaning brush of the present invention comprising a brush head 1, a body 2 and a brush bar 3.

[26] The brush head 1 is assembled on the main body 2. In order to increase the versatility of the product, this embodiment is assembled by plugging. As shown in FIGS. 7 and 8, the brush head 1 of this embodiment is fixed on the slider 11, and the main body 2 is formed at the portion where the brush head 1 is assembled. The chute 21, this embodiment further forms the anti-slip bumps 211, 12 and the recesses 13, 212 on the inner wall of the chute 21 and the surface of the slider 11, assembled by the anti-slip bumps 12, 211 and the recess 13 The concave-convex fit of the 212 causes the slider 11 to be inserted into the sliding slot 21, and a certain force is applied to overcome the resistance generated by the uneven fitting, so that the slider 11 can be slid into the sliding slot 21 from the end of the sliding slot 21. And the slide head 11 is detachably mounted on the main body 2 by the sliding fit of the slider 11 and the sliding groove 21, and after assembly, the concave-convex fit of the anti-slip bumps 12, 21 and the recesses 13, 212 is used. The slider 11 can be prevented from slipping out of the sliding slot 21 to achieve the effect of assembly positioning. Of course, the number and specific shape of the anti-slip bumps and the recesses are not limited by the illustration, as long as the assembly on the main body 2 can be prevented. The brush head 1 can slide out of the chute 21. When it is necessary to replace the brush head 1 , the slider 11 is simply pulled out from the chute 21 for replacement. With this structure, it is easy to replace the brush heads with different functions as needed, making them more widely used.

[27] The main body 2 is formed with a receiving groove 23 for inserting the brush rod 3. A rotating ring 24 is mounted in the receiving groove 23. The specific mounting manner of the rotating ring 24 can be as shown in FIG. The groove wall is designed with an arc-shaped wall corresponding to the outer shape of the rotating ring 24, and the rotating ring 24 is located between the two curved walls. By the cooperation between the curved wall and the rotating ring 24, the rotating ring 24 is rotated and the rotating ring 24 is rotated. Therefore, the positioning hole 25 is further formed on both sides of the accommodating groove 23, and the pivot ring 242 is formed on both sides of the rotating ring 24, and the end of the pivot 242 forms the block 241. The pivot 242 is caught in the positioning hole 25, and the block 241 is located outside the positioning hole 25. By the cooperation of the pivot 242 and the positioning hole 25, the rotating ring 24 can be prevented from being deflected, so as to be better assembled with the brush bar 3 described later. together. The body 2 also has a recess 22 which is threadedly connected to the brush bar 3, the recess 22 having an internal thread.

[28] One end of the brush rod 3 connected to the main body 2 is sleeved in the rotating ring 24, and the end of the brush rod 3 forms a convex card 301. This male card 301 prevents the brush bar 3 from coming out of the rotating ring 24. The convex card 301 may be a protruding ring formed on the outer surface of the brush bar 3, or may be at least two protrusions distributed on one surface of the outer surface of the brush bar 3, or may be formed at the end of the brush bar 3. A circular table having an increasingly increased outer diameter, any structure that can cooperate with the rotating ring 24 to prevent the brush bar 3 from coming out of the rotating ring 24, should be considered equivalent to the male card 301 described herein. The end of the brush rod 3 connected to the main body 2 also has an external thread, and the brush rod 3 is fixed to the main body 2 by the external thread and the internal thread of the groove 22 of the main body 2, which is convenient for use. In order to minimize the volume after the product is folded, the brush rod 3 of this embodiment is a telescopic rod member, which is formed by the inner rod 31 and the outer tube 32. The specific sleeve structure can be as shown in Fig. 6, in the outer tube. A through hole 321 is formed in a middle portion of the inner surface of the inner rod 31, and an elastic boss 311 is formed at a corresponding position of the inner rod 31. In use, the inner tube 31 and the outer tube 32 are completely extended, and the elastic boss 311 can be inserted into the through hole 321 The relative positions of the inner rod 31 and the outer tube 32 are fixed. Conversely, the elastic boss 311 is pressed downward, and the locking positioning of the elastic boss 311 and the through hole 321 is released, so that the inner tube 31 and the outer tube 32 can be contracted. In order to make the brush rod 3 shrink and can be fixedly received in the accommodating groove 23 of the main body 2 to further reduce the volume of the product, the diameter of the outer tube 32 of the brush rod 3 is designed to be slightly larger than the notch of the accommodating groove 23. The width d is smaller than the diameter of the accommodating groove, and the diameter of the inner rod 31 is designed to be slightly smaller than the notch width d of the accommodating groove 23, so that the brush rod 3 can be rotated to be perpendicular to the main body 2 only after being unfolded. In the contraction 吋, the brush bar 3 is in the accommodating groove 23, as shown in FIG.

[29] Using the cymbal, the brush rod 3 is pulled out from the accommodating groove 23, and the boss 311 of the inner rod 31 is inserted into the through hole 32 1 of the outer tube 32, so that the brush rod 3 is elongated to the longest. Due to the cooperation of the rotating ring 24 and the convex card 301 of the brush bar, the brush bar 3 can be prevented from coming out completely. The brush bar 3 is rotated to be perpendicular to the main body 2, and one end of the brush bar 3 connected to the main body 2 is inserted into the recess 22 of the main body 2, and the external thread of the end of the brush bar 3 and the recess 22 of the main body 2 are The internal thread is matched to realize the vertical positioning of the brush rod 3 and the main body 2, so that the brush rod 3 stands up, as shown in Fig. 6, and can be conveniently operated. When the cleaning brush is not used, the external thread of the connecting end of the brush rod 3 and the main body 2 can be released from the internal thread of the groove 22, and then the rotating rod 24 can be rotated to be horizontal with the main body 2, so that The brush rod 3 is fallen down, and the boss 311 on the inner rod 31 of the brush rod 3 is pressed to disengage the boss 311 from the through hole 321 in the outer tube 32, and then the outer tube 32 is pushed in, so that the brush rod 3 is completely contracted. It is inserted into the accommodating groove 23 to minimize the volume of the entire cleaning brush, which is convenient for packaging and collection.

[30] The present invention eliminates the elastic piece in the prior structure, and utilizes the threaded engagement of the brush rod 3 with the main body 2, so that the deployment position of the brush rod 3 and the main body 2 is more accurate and effective, and the operation is convenient, and the main body 2 is assembled. Brush head 1 The portion is formed with a slot 21, and the brush head 1 is fixed on the insert 11. The brush head 1 is detachably mounted on the main body 2 by inserting the insert 11 into the slot 21, so that it can be easily replaced as needed. The functional brush head 1 has a wider range of uses.

Claims

Claim

[1] 1. A cleaning brush comprising a brush head, a main body and a brush bar, wherein the brush head is assembled on the main body, wherein: the main body forms a receiving groove for inserting the brush bar, and a mounting groove is installed in the receiving groove. a rotating ring, a positioning hole is formed on both sides of the receiving groove, and a pivot shaft is formed on both sides of the rotating ring, the pivot pin is caught in the positioning hole, and one end of the brush bar connected to the main body is sleeved in the rotating ring, and the end of the brush bar has a convex card for preventing the brush bar from coming out of the rotating ring, the one end of the brush bar connecting with the main body further has an external thread, and the main body has a groove for inserting the external thread end of the brush bar, and the groove has an inner thread matched with the external thread of the brush bar Thread.

[2] 2. A cleaning brush according to claim 1, wherein: the end of the pivots on both sides of the rotating ring further forms a block, and the pivot is stuck in the positioning hole of the receiving groove, and the block is located Position the outside of the hole.

[3] 3. A cleaning brush according to claim 1, wherein: the groove wall of the accommodating groove is designed with an arc-shaped wall corresponding to the outer shape of the rotating ring, and the rotating ring is located between the two curved walls. The engagement between the curved wall and the rotating ring causes the rotating ring to be rotatably mounted in the receiving groove.

[4] 4. A cleaning brush according to claim 1, wherein: the brush bar is a telescopic rod member, and the outer rod and the outer tube are sleeved together, and the outer diameter of the brush rod is smaller than the outer diameter of the brush rod. The diameter of the groove is larger than the width of the groove of the accommodating groove, and the diameter of the inner rod is smaller than the width of the groove of the accommodating groove.

[5] 5. A cleaning brush according to claim 1, wherein: the main body forms a sliding groove at a portion where the brush head is assembled, the brush head is fixed on the sliding bar, and is slid by the end of the sliding groove by the sliding bar. Insert into the chute, and the brush head is detachably mounted on the main body.

[6] 6. A cleaning brush according to claim 5, wherein: the inner wall of the chute and the surface of the slider form the anti-slip bumps and the recesses.