Gap brush
By designing a telescopic rod structure for the crevice brush, with the inner and outer handles slidingly connected, and using a locking rod and slot to extend and retract the main brush, the problem of needing two hands to operate in home cleaning is solved, achieving the convenience of cleaning crevice gaps with one hand.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
When cleaning the house, using a large cleaning brush and a small crevice brush requires two hands, which is inconvenient.
Design a crevice brush with a telescopic rod structure. The inner and outer handles are slidably connected. The extension and retraction of the main brush is achieved through the cooperation of the locking rod and the locking groove. The inner handle drives the main brush to be pushed out from the internal hole, forming a smaller brush for cleaning crevice gaps.
It allows for one-handed operation, making it convenient to clean floor or wall crevices and improving the user experience.
Smart Images

Figure CN224085256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning tool technology, specifically to a crevice brush. Background Technology
[0002] In modern life, people are paying more and more attention to the cleanliness of their homes. When cleaning the home, they usually use a large cleaning brush. However, when cleaning the gaps between two tiles on the floor or wall, they often need to switch to and use a smaller gap brush. As a result, during the home cleaning process, they need to hold the cleaning brush in one hand and the gap brush in the other, which is very inconvenient. Utility Model Content
[0003] The purpose of this invention is to design a slit brush that can solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A crevice brush includes a telescopic rod, which includes an inner handle and an outer handle. A main brush is fixedly connected to the bottom end of the inner handle, and an auxiliary brush is fixedly connected to the bottom end of the outer handle. The auxiliary brush has an internal hole for accommodating the main brush.
[0006] Furthermore, both the inner handle and the outer handle are cylindrical structures. The inner handle and the inner cavity of the outer handle are slidably connected. A spring is fixedly connected between the top of the inner cavity and the top of the inner handle. The side wall of the outer handle is provided with an elongated groove. The lower side of the elongated groove is provided with a locking groove. A locking rod is slidably connected inside the elongated groove. The locking groove and the locking rod engage with each other. The locking rod is used to push the inner handle to slide. The locking rod can rotate between the elongated groove and the locking groove.
[0007] Furthermore, the inner cavity has a cylindrical structure, and a cylinder that rotates and engages with the inner cavity is provided inside the inner cavity. One end of the cylinder contacts the top of the inner handle, and the side of the cylinder is fixedly connected to one end of the lever.
[0008] Furthermore, a soft pad is fixedly connected to the end of the lever away from the cylinder.
[0009] Furthermore, the inner wall of the inner cavity is provided with two symmetrically arranged limiting grooves, and the side wall of the inner handle is fixedly connected with a limiting block that slides in cooperation with the limiting groove.
[0010] Furthermore, the upper part of the outer handle is covered with an anti-slip sleeve.
[0011] Furthermore, a hanging hole is fixedly connected to the top of the outer handle.
[0012] Furthermore, the top edge of the outer handle has a rounded corner structure.
[0013] The beneficial effects of this utility model are as follows:
[0014] When cleaning your home, you can pick up the telescopic pole by hand to use the larger auxiliary brush for cleaning. When cleaning the gap between two tiles on the floor or wall, the telescopic pole's structure allows the inner handle to extend, which in turn pushes the main brush out from the inside hole, allowing you to use the smaller main brush to clean the gaps. It only requires one hand to hold and is very convenient to use. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the relationship between the main brush and the auxiliary brush in this utility model;
[0018] Figure 3 This is a cross-sectional view of the present invention;
[0019] Figure 4 This is a partial exploded view of the hidden auxiliary brush of the utility model.
[0020] Figure 5 This is a schematic diagram of the structure of the utility model, which uses a main brush for cleaning.
[0021] The names of the components shown in the diagram are as follows:
[0022] 1. Inner handle; 2. Outer handle; 3. Main brush; 4. Auxiliary brush; 5. Internal hole; 6. Inner cavity; 7. Spring; 8. Long groove; 9. Card slot; 10. Card rod; 11. Cylinder; 12. Soft pad; 13. Limiting groove; 14. Limiting block; 15. Anti-slip sleeve. Detailed Implementation
[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0024] like Figure 1-5 As shown, a crevice brush includes a telescopic rod, which includes an inner handle 1 and an outer handle 2. A main brush 3 is fixedly connected to the bottom end of the inner handle 1, and an auxiliary brush 4 is fixedly connected to the bottom end of the outer handle 2. The auxiliary brush 4 has an internal hole 5 for accommodating the main brush 3. The telescopic structure of the telescopic rod allows the inner handle 1 to extend, and the inner handle 1 will push the main brush 3 out from the internal hole 5. The smaller main brush 3 can be used to clean the crevice of the item, realizing the integration of the smaller main brush 3 and the larger auxiliary brush into one unit, which can be held with only one hand and is convenient to use.
[0025] Both the inner handle 1 and the outer handle 2 are cylindrical structures. The inner handle 1 and the inner cavity 6 of the outer handle 2 are slidably connected. A spring 7 is fixedly connected between the top of the inner cavity 6 and the top of the inner handle 1. The side wall of the outer handle 2 is provided with a long groove 8, and the lower side of the long groove 8 is provided with a slot 9. A locking rod 10 is slidably connected inside the long groove 8. The slot 9 and the locking rod 10 are engaged. The inner cavity 6 is a cylindrical structure. Inside the inner cavity 6 is a cylinder 11 that rotates with the inner cavity 6. By rotating the cylinder 11, the locking rod 10 can rotate between the long groove 8 and the slot 9. One end of the cylinder 11 contacts the top of the inner handle 1, and the side of the cylinder 11 is fixedly connected to one end of the locking rod 10. By pushing the locking rod 10 to slide in the long groove 8 in a direction close to the slot 9, the locking rod 10 will drive the cylinder 11 to move, and the cylinder 11 will push the inner handle 1 to slide and extend. As the spring 7 extends out of the inner cavity 6, it is stretched. After the lever 10 moves to the corresponding slot 9, the lever 10 can be rotated to enter the slot 9 and released. The elastic contraction of the spring 7 will push the cylinder 11 to move through the inner handle 1. The cylinder 11 will then drive the lever 10 to move, so that the lever 10 is engaged in the limiting hole at the top of the slot 9, which restricts the rotation of the lever 10. During the cleaning process using the main brush 3, the lever 10 can be prevented from rotating due to external forces, causing the inner handle 1 to retract into the inner cavity 6 and affecting the use effect. The lever 10 can rotate between the long groove 8 and the slot 9. The end of the lever 10 away from the cylinder 11 is fixedly connected to a soft pad 12, which plays a buffering role and can improve the comfort of pushing the lever 10 with fingers.
[0026] The inner wall of the inner cavity 6 is provided with two symmetrically arranged limiting grooves 13. The side wall of the inner handle 1 is fixedly connected with a limiting block 14 that slides with the limiting groove 13 to limit the inner handle 1, so that the inner handle 1 can only reciprocate along the length of the inner cavity 6, and avoid the inner handle 1 from rotating and affecting the cleaning effect of the main brush 3. The upper part of the outer handle 2 is covered with an anti-slip sleeve 15 to prevent slipping. The top edge of the outer handle 2 has a rounded corner structure to improve aesthetics and safety.
[0027] Working principle:
[0028] like Figure 5 As shown, when cleaning the home, you can pick up the outer handle 2 of the telescopic rod to use the larger auxiliary brush 4 for cleaning. When cleaning the gap between two tiles on the floor or wall, push the locking rod 10 with your finger and slide it in the long groove 8 towards the groove 9. The locking rod 10 will drive the cylinder 11 to move, and the cylinder 11 will push the inner handle 1 to slide and extend out of the inner cavity 6. The inner handle 1 will drive the main brush 3 to be pushed out from the inside of the inner hole 5. During this process, the spring 7 will be stretched. After the locking rod 10 moves to the position of the corresponding groove 9, you can rotate the locking rod 10 to let it turn into the groove 9 and release it. The elastic contraction of the spring 7 will push the cylinder 11 to move through the inner handle 1. The cylinder 11 will then drive the locking rod 10 to move, so that the locking rod 10 is engaged in the limiting hole at the top of the groove 9. You can then use the smaller main brush 3 to clean the gaps of items. It only requires one hand to hold and is easy to use.
[0029] When the main brush 3 is not needed, push the lever 10 out of the limiting hole of the slot 9 with your finger, then turn the lever 10 into the long slot 8 and release it. The elastic contraction of the spring 7 will push the cylinder 11 to move through the inner handle 1. The cylinder 11 will then drive the lever 10 to move, so that the lever 10 returns to its initial position and the inner handle 1 retracts into the inner cavity 6. The inner handle 1 will then drive the main brush 3 to be stored back into the inner hole 5.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A crevice brush, comprising a telescopic rod, characterized in that, The telescopic rod includes an inner handle (1) and an outer handle (2). The bottom end of the inner handle (1) is fixedly connected to a main brush (3), and the bottom end of the outer handle (2) is fixedly connected to an auxiliary brush (4). The auxiliary brush (4) has an internal hole (5) for accommodating the main brush (3).
2. The slit brush according to claim 1, characterized in that, Both the inner handle (1) and the outer handle (2) are cylindrical structures. The inner handle (1) and the inner cavity (6) of the outer handle (2) are slidably connected. A spring (7) is fixedly connected between the top of the inner cavity (6) and the top of the inner handle (1). The side wall of the outer handle (2) is provided with a long groove (8). The side of the lower part of the long groove (8) is provided with a slot (9). A locking rod (10) is slidably connected inside the long groove (8). The slot (9) and the locking rod (10) are engaged. The locking rod (10) is used to push the inner handle (1) to slide. The locking rod (10) can rotate between the long groove (8) and the slot (9).
3. The slit brush according to claim 2, characterized in that, The inner cavity (6) is a cylindrical structure. Inside the inner cavity (6) is a cylinder (11) that rotates with the inner cavity (6). One end of the cylinder (11) contacts the top of the inner handle (1), and the side of the cylinder (11) is fixedly connected to one end of the lever (10).
4. The slit brush according to claim 3, characterized in that, A soft pad (12) is fixedly connected to the end of the lever (10) away from the cylinder (11).
5. The crevice brush according to claim 2, characterized in that, The inner wall of the inner cavity (6) is provided with two symmetrically arranged limiting grooves (13), and the side wall of the inner handle (1) is fixedly connected with a limiting block (14) that slides with the limiting grooves (13).
6. The slit brush according to claim 1, characterized in that, The upper part of the outer handle (2) is covered with an anti-slip sleeve (15).
7. The crevice brush according to claim 1, characterized in that, The top edge of the outer handle (2) has a rounded corner structure.