Cleaning brush with detachable and replaceable brush head

Abstract

The cleaning brush with the detachable and replaceable brush head comprises a brush head assembly and a brush rod assembly which are detachably connected with each other, the brush head assembly comprises the brush head, a bristle plate and a mounting plate, sliding rails are arranged on the left side face and the right side face of the bristle plate respectively, and a clamping block is arranged at the rear end of the top face of the bristle plate; the lower end of the brush head is bent to form a connecting seat, the inner surfaces of the left side wall and the right side wall of the connecting seat are respectively provided with a slide way matched with the slide rails, and the rear wall of the connecting seat is provided with a through hole; the installation plate is provided with an elastic clamping jaw protruding towards the bristle plate, the end of the elastic clamping jaw is horizontally bent to form an operation button, the installation plate is fixed to the lower surface of the connecting base, the operation button penetrates out of the through hole, the sliding rail slides along the sliding way, and locking and unlocking are achieved through cooperation of the elastic clamping jaw and the clamping block. According to the utility model, the bristle plate can be independently replaced, the cost is saved, and the disassembly and assembly are convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning brushes, in particular to a cleaning brush with a detachable and replaceable brush head. Background Art

[0002] Cleaning brushes are commonly used for cleaning and maintenance of automobiles and other products. With existing cleaning brushes, when the brush head becomes severely soiled, the entire brush head assembly is typically replaced. For example, Chinese utility model patent CN 217959166 U discloses a long-handled cleaning brush comprising a handle, a brush head, and a plurality of bristle bundles. A cylindrical sleeve is integrally formed at one end of the brush head, and one end of the handle is threadedly connected to the inner wall of the sleeve. This design results in significant waste when replacing the entire brush head assembly, leading to high operating costs. Utility Model Content

[0003] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a cleaning brush with a detachable and replaceable brush head, so as to solve the problem of large waste and high cost of replacing the entire brush head assembly in the prior art.

[0004] To this end, the present application provides a cleaning brush with a detachable and replaceable brush head, comprising a brush head assembly and a brush rod assembly that are detachably connected to each other, the brush head assembly comprising:

[0005] A brush plate, with bristles on its bottom surface, slide rails on its left and right sides respectively, and a clamping block at the middle of the rear end of the top surface of the brush plate;

[0006] The brush head has a connecting rod at its upper end, which is detachably connected to the brush rod assembly. The lower end of the brush head is bent to form a connecting seat. The inner surfaces of the left and right side walls of the connecting seat are respectively provided with slideways adapted to the slide rails. A through hole is provided on the rear wall of the connecting seat.

[0007] The mounting plate has an elastic claw protruding toward the brush plate at the rear, and the end of the elastic claw is horizontally bent to form an operating button. The mounting plate is fixed on the lower surface of the connecting seat, and the operating button passes through the through hole. The slide rail slides along the slide and is locked and unlocked by cooperating with the card block through the elastic claw.

[0008] Based on the above technical solution, this application optimizes the design of the brush head assembly, adds a mounting plate to the brush head, and the bristle plate and the mounting plate are connected by a slide rail, and are locked and unlocked by elastic claws and card blocks. In this way, the bristle plate can be replaced separately, and the main body of the brush head is retained, which saves costs and is easy and quick to disassemble.

[0009] In the above technical solution, preferably, a fence with an open front end is provided on the bottom surface of the connecting seat, and the slide is provided on the inner surface of the left and right side walls of the fence. In this implementation, the bristle plate is inserted into the front end of the connecting seat, and the fit is tight and not easy to shake.

[0010] In the above technical solution, preferably, the lower surface of the connecting seat is tilted relative to the axis of the brush rod assembly to form an inclined surface facing the user, which provides the user with reasonable cleaning power and is convenient to use.

[0011] In the above technical solution, preferably, the mounting plate has two strip-shaped grooves formed in the middle thereof, the two strip-shaped grooves being spaced apart and communicating with the rear end of the mounting plate. The portion sandwiched between the two strip-shaped grooves forms an elastic plate, and the elastic claws are disposed at the rear end of the elastic plate. This structure simplifies the structure by integrally forming the elastic plate.

[0012] In the above technical solution, preferably, the side surfaces of the elastic claw and the clamping block relative to each other are arranged as matching inclined surfaces, which saves effort in installation.

[0013] In the above technical solution, preferably, the lower surface of the mounting plate is flush with the upper surface of the slideway, which not only ensures the normal use of the slideway but also better supports the brush plate.

[0014] In the above technical solution, preferably, a reset spring is provided on the top surface of the elastic plate to facilitate reset.

[0015] In the above technical solution, preferably, positioning protrusions are respectively provided on the left and right side surfaces of the front portion of the mounting plate, and a positioning plate matching the positioning protrusions is provided on the inner wall of the connecting seat to facilitate installation and fixation of the mounting plate.

[0016] As can be seen from the above technical solution, the cleaning brush with a detachable and replaceable brush head provided by the present invention solves the problem of large waste and high cost of replacing the entire brush head assembly in the prior art. Compared with the prior art, the present invention has the following beneficial effects:

[0017] The brush head assembly includes a bristle plate, a brush head, and a mounting plate. The left and right sides of the bristle plate are respectively provided with slide rails, and the middle part of the rear end of the top surface is provided with a clamping block. The lower end of the brush head is bent to form a connecting seat. The inner surfaces of the left and right side walls of the connecting seat are respectively provided with slide rails that match the slide rails. A through hole is provided on the rear wall of the connecting seat. The rear part of the mounting plate is provided with an elastic claw protruding toward the bristle plate. The end of the elastic claw is horizontally bent to form an operating button. The mounting plate is fixed to the lower surface of the connecting seat. The operating button passes through the through hole. The bristle plate and the mounting plate are detachably connected through the slide rails and the slide rails, and are locked and unlocked by the elastic claw and the clamping block. Therefore, when the bristles are damaged, the bristle plate can be replaced separately, and the other components of the brush head assembly are retained, which saves replacement costs and is convenient and quick to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and explains the drawings required for the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0019] Figure 1 A schematic diagram of a cleaning brush with a detachable and replaceable brush head provided by the present invention;

[0020] Figure 2 for Figure 1 A magnified view of part A in FIG;

[0021] Figure 3 for Figure 1 Schematic diagram of the assembly of the cleaning brush and brush head plate of the detachable and replaceable brush head;

[0022] Figure 4 for Figure 3 A magnified view of part B in FIG;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the brush head assembly in the present invention;

[0024] Figure 6 for Figure 5 A schematic cross-sectional view of the brush head assembly shown;

[0025] Figure 7 for Figure 5 A schematic longitudinal section of the brush head assembly shown;

[0026] Figure 8 It is a schematic diagram of the mounting plate in the present utility model;

[0027] Figure 9 for Figure 8Schematic diagram of the direction of looking up after installation;

[0028] Figure 10 This is a schematic diagram of the brush plate in the present utility model;

[0029] Figure 11 for Figure 10 A schematic longitudinal section of the bristle plate shown;

[0030] Figure 12 for Figure 10 Schematic cross-section of the bristle plate shown.

[0031] Figures 1-12 In the figure, the corresponding relationship between the parts is as follows:

[0032] Brush head assembly 100, brush rod assembly 200;

[0033] Brush head 110, bristle plate 120;

[0034] Connecting rod 111, connecting base 112, mounting plate 113, operating button 114, through hole 115, strip groove 116, elastic plate 117, elastic claw 118, return spring 119;

[0035] Enclosure 1121, slide 1122, positioning plate 1123;

[0036] Positioning protrusion 1131;

[0037] Brush bristles 121 , slide rails 122 , and clamping blocks 123 . DETAILED DESCRIPTION

[0038] Existing cleaning brushes with replaceable brush heads require replacing the entire brush head assembly when replacing the brush head, which is wasteful and expensive. The present application solution only requires replacing the bristle plate, while retaining the rest of the brush head assembly, reducing replacement costs and making replacement more convenient.

[0039] The following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] In order to provide a clearer explanation and description of the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0041] It should be noted that the directional words such as "inside, outside", "front, back" and "left, right" in this article are expressed based on the product usage status. Obviously, the use of the corresponding directional words does not constitute a limitation on the scope of protection of this scheme.

[0042] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the present invention provides a cleaning brush with a detachable and replaceable brush head, comprising a brush head assembly 100 and a brush rod assembly 200, wherein the brush head assembly 100 is detachably arranged at the lower end of the brush rod assembly 200. The brush rod assembly 200 can adopt a multi-rod assembly structure or a telescopic structure, which is not limited here.

[0043] The brush head assembly 100 includes a brush head 110 and a bristle plate 120 . Bristles 121 are provided on the bottom surface of the bristle plate 120 for cleaning.

[0044] The upper end of the brush head 110 is provided with a hollow connecting rod 111 for detachable connection to the brush bar assembly 200. The lower end of the brush head 110 is bent to form a connecting seat 112. The lower surface of the connecting seat 112 is tilted relative to the axis of the brush bar assembly 200, forming an inclined surface facing the user for easier use.

[0045] A mounting plate 113 is fixed on the lower surface of the connecting seat 112 , and the brush plate 120 is detachably connected to the connecting seat 112 via a slide rail. The mounting plate 113 and the brush plate 120 are clamped together by an elastic claw structure and can be disassembled by operating the button 114 .

[0046] like Figure 5 、 Figure 6 、 Figure 7 As shown, the connecting base 112 is a hollow structure that communicates with the inner cavity of the connecting rod 111 and is integrally injection molded. A through-hole 115 is provided on the rear wall of the connecting base 112, through which the operating button 114 passes for unlocking. A front-end-opening enclosure 1121 is provided on the bottom surface of the connecting base 112, and slideways 1122 are provided on the inner surfaces of the left and right side walls of the enclosure 1121.

[0047] like Figure 8 、 Figure 9As shown, two strip grooves 116 are opened in the middle of the mounting plate 113, and the two strip grooves 116 are arranged at intervals, and the rear end is connected to the rear end surface of the mounting plate 113. The part clamped by the two strip grooves 116 forms an elastic plate 117, and the rear part of the elastic plate 117 is provided with an elastic claw 118 protruding toward the brush plate 120. The end of the elastic claw 118 is horizontally bent to form the above-mentioned operation button 114. The upper surface of the operation button 114 is arranged parallel to the lower surface of the connecting seat 112 and passes through the through hole 115.

[0048] The elastic claw 118 is in a right-angled wedge shape, and its rear side is substantially perpendicular to the lower surface of the connecting seat 112. The mounting plate 113 is fixed to the bottom surface of the connecting seat 112, and the lower surface of the mounting plate 113 is flush with the upper surface of the slide 1122 to ensure the normal use of the slide 1122.

[0049] like Figure 10 、 Figure 11 、 Figure 12 As shown, the left and right side walls of the bristle plate 120 are each provided with a slide rail 122. A clamping block 123 is provided at the rear end of the bottom surface of the bristle plate 120. The rear side of the clamping block 123 is also approximately perpendicular to the lower surface of the connecting base 112, and the front side of the clamping block 123 is an inclined surface. As a result, the sides of the clamping block 123 that face the elastic claw 118 are configured as matching inclined surfaces, facilitating installation. The clamping block 123 cooperates with the elastic claw 118 to lock the bristle plate 120 to the mounting plate 113, thereby achieving a lock with the connecting base 112.

[0050] The rear end of the slide rail 122 on the brush plate 120 cooperates with the enclosure 1121 on the connecting seat 112 to limit the brush plate 120 and avoid damaging the elastic claw 118 due to excessive pushing of the brush plate 120.

[0051] A reset spring 119 is further provided on the top surface of the elastic plate 117 for resetting the elastic plate 117 to ensure that the clamping block 123 and the elastic clamping claw 118 are engaged with each other under normal conditions.

[0052] See also Figure 5 、 Figure 8 Positioning protrusions 1131 are respectively provided on the left and right sides of the front of the mounting plate 113, and a positioning plate 1123 matching the positioning protrusions 1131 is provided on the inner wall of the connecting seat 112, thereby achieving rapid positioning of the mounting plate 113 and facilitating the installation and fixing of the mounting plate 113.

[0053] The method of using the utility model is as follows:

[0054] The mounting plate 113 is fixed to the bottom surface of the connecting seat 112. Through the front end opening of the enclosure 1121 on the connecting seat 112, the slide rails 122 on the brush plate 120 are respectively inserted into the slide rails 1122, and the brush plate 120 is pushed toward the rear end along the slide rails 1122. When it reaches the position where the block 123 contacts the elastic claw 118, the brush plate 120 continues to be pushed backward. Under the action of the mutual squeezing of the corresponding inclined surfaces on the block 123 and the elastic claw 118, the elastic claw 118 elastically deforms upward, and finally the block 123 passes over the elastic claw 118. The elastic claw 118 restores its elasticity and is stuck on the rear side surface of the block 123, completing the installation and locking of the brush plate 120. At this time, the elastic claw 118 is engaged with the block 123. Under the obstruction of the block 123, the brush plate 120 cannot be pulled forward.

[0055] When the brush plate 120 needs to be replaced, pull the operating button 114 upwards, the elastic claw 118 separates from the block 123, and then pull the brush plate 120 forward. The brush plate 120 can be pulled out and removed from the opening at the front end of the connecting seat 112. Installation and disassembly do not require the use of tools, which is convenient and quick.

[0056] Based on the description of the above specific embodiments, the cleaning brush with a detachable and replaceable brush head provided by the present invention has the following advantages compared with the prior art:

[0057] First, the connection seat between the bristle plate and the brush head adopts a slide push-pull detachable connection, which allows the bristle plate to be easily replaced. Since only the bristle plate can be replaced, the brush head part of the brush head assembly does not need to be replaced, thus saving costs.

[0058] Second, the connection seat between the bristle plate and the brush head is locked by elastic claws, and the connection is firm and reliable and not easy to loosen.

[0059] Third, the end of the elastic claw is bent horizontally to form an operating button, which passes through the through hole on the rear wall of the through hole connecting seat. The elastic claw is operated by the operating button, which is easy to operate, and the outer protrusion of the operating button will not bump against the cleaning object, so it is safe to use.

[0060] Finally, it should be noted that the terms "comprise," "include," or any other variations thereof, as used herein, are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0061] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any structural changes with the same or similar technical solutions as the present invention fall within the scope of protection of the present invention.

Claims

1. A cleaning brush with a detachable and replaceable brush head, comprising a brush head assembly and a brush rod assembly detachably connected to each other, characterized in that: The brush head assembly comprises: A brush plate, with bristles on its bottom surface, slide rails on its left and right sides respectively, and a clamping block at the middle of the rear end of the top surface of the brush plate; The brush head has a connecting rod at its upper end, which is detachably connected to the brush rod assembly. The lower end of the brush head is bent to form a connecting seat. The inner surfaces of the left and right side walls of the connecting seat are respectively provided with slideways adapted to the slide rails. A through hole is provided on the rear wall of the connecting seat. The mounting plate has an elastic claw protruding toward the brush plate at the rear, and the end of the elastic claw is horizontally bent to form an operating button. The mounting plate is fixed on the lower surface of the connecting seat, and the operating button passes through the through hole. The slide rail slides along the slide and is locked and unlocked by cooperating with the card block through the elastic claw.

2. The cleaning brush with a detachable and replaceable brush head according to claim 1, characterized in that: A fence with an open front end is provided on the bottom surface of the connecting seat, and the slideway is arranged on the inner surfaces of the left and right side walls of the fence.

3. The cleaning brush with a detachable and replaceable brush head according to claim 1, characterized in that: The lower surface of the connecting seat is tilted relative to the axis of the brush rod assembly to form an inclined surface inclined toward the user.

4. The cleaning brush with a detachable and replaceable brush head according to claim 1, characterized in that: Two strip grooves are provided in the middle of the mounting plate, the two strip grooves are spaced apart, and the rear end is connected to the rear end surface of the mounting plate, the part clamped by the two strip grooves forms an elastic plate, and the elastic claw is provided at the rear end of the elastic plate.

5. The cleaning brush with a detachable and replaceable brush head according to claim 1, wherein: The side surfaces opposite to the elastic clamping claw and the clamping block are arranged as matching inclined surfaces.

6. The cleaning brush with a detachable and replaceable brush head according to claim 1, characterized in that: The lower surface of the mounting plate is flush with the upper surface of the slideway.

7. The cleaning brush with a detachable and replaceable brush head according to claim 4, characterized in that: A return spring is provided on the top surface of the elastic plate.

8. The cleaning brush with a detachable and replaceable brush head according to claim 1, characterized in that: Positioning protrusions are respectively provided on the left and right side surfaces of the front portion of the mounting plate, and a positioning plate matching the positioning protrusions is provided on the inner wall of the connecting seat.

Images