A length-adjustable brush

Abstract

The utility model relates to a length adjustable brush, including extension block, the inside slide coupling of extension block has extension rod, the right side fixed limit stop of extension rod, the inside slide coupling of extension block has limit rod, the top of limit rod is fixed with fixed assembly, the top of extension rod is connected with fixed assembly rotation, the inside fixed brush of fixed assembly, the bottom fixed connection piece of extension block, the outer surface screw thread connection of connection piece has adjusting block. This length adjustable brush, when needing to adjust the length, through pulling extension rod, can make extension rod move to complete the length adjustment, when needing to fix, through rotating extension rod can make limit stop rotate to the inside of limit groove, thereby makes extension rod unable to continue rotating, and effectively completes the fixed after adjusting, the whole simple structure makes the whole convenient to adjust.

Description

Technical Field

[0001] This utility model relates to the field of brush technology, specifically to an adjustable-length brush. Background Technology

[0002] Brushes are generally tools made of bristles, palm fibers, plastic filaments, or metal wires, used to remove dirt or apply ointments. Brushes are usually designed to be long or oval and have a handle. According to the application field, brushes are generally divided into industrial brushes and household brushes.

[0003] Different items require brushes of different lengths. Most adjustable-length brushes adjust their length by adjusting the length of the telescopic rod and then fixing the extension rod. This requires the user to constantly fix and unfix the rod, causing inconvenience and making it difficult to use. Therefore, an adjustable-length brush is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an adjustable length brush, which has the advantages of easy adjustment and solves the problem of users having to constantly fix and unfix the brush, causing inconvenience to users.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable length brush, comprising an extension block, an extension rod slidably connected inside the extension block, a limiting block extending through to the outside of the extension block fixed on the right side of the extension rod, and a limiting rod slidably connected inside the extension block;

[0006] The top of the limiting rod is fixed with a fixing component, the top of the extension rod is rotatably connected to the fixing component, a brush is fixed inside the fixing component, the fixing component is used to make the brush easy to install and remove, a connecting block is fixed at the bottom of the extension block, and an adjusting block is threadedly connected to the outer surface of the connecting block.

[0007] The fixing assembly includes a fixing block, a push rod, a fixing plate, a compression pad, and a control block. The fixing block is fixed to the limiting rod. The front of the fixing block is threadedly connected to the push rod. The back of the push rod is rotatably connected to the fixing plate. The back of the fixing plate is fixed to the compression pad. The front of the push rod is fixed to the control block.

[0008] Furthermore, a friction strip is fixed to the outer surface of the control block, and a sponge pad is fitted onto the outer surface of the extension block.

[0009] Furthermore, the push rod is a threaded rod, and the front of the fixing block has a threaded hole that matches the threaded rod.

[0010] Furthermore, a fixed bearing is fixed to the bottom of the fixed block, and the interior of the fixed bearing is fixed to the extension rod.

[0011] Furthermore, a movable groove is provided on the left side of the extension block, and a limiting groove communicating with the movable groove is provided on the back side of the extension block.

[0012] Furthermore, sliding blocks are fixed on both the front and rear sides of the limiting rod, and a sliding groove is provided inside the extension block to slide in connection with the sliding blocks.

[0013] Furthermore, the sliding block is located on one side biased towards the bottom of the limiting rod, and a hanging ring is fixed to the bottom of the adjusting block.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. This adjustable-length brush can be adjusted by pulling the extension rod. When the length needs to be adjusted, the extension rod can be rotated to move the limiting block into the limiting groove, thus preventing the extension rod from rotating further and effectively fixing the brush after adjustment. The overall structure is simple and easy to adjust, making it more practical.

[0016] 2. This adjustable-length brush can be fixed in place by a fixed component, allowing the brush to be replaced if it is damaged. The compression pad effectively improves the stability of the brush when it is fixed. The overall structure is simple, and the handle can be reused after the brush is damaged, making the whole brush more practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural appearance drawing of the present utility model;

[0019] Figure 3 This is a three-dimensional view of the fixing component structure of this utility model.

[0020] In the diagram: 1. Extension block, 2. Extension rod, 3. Limiting block, 4. Limiting rod, 5. Fixing component, 501. Fixing block, 502. Push rod, 503. Fixing plate, 504. Extrusion pad, 505. Control block, 6. Brush, 7. Connecting block, 8. Adjusting block, 9. Hanging ring, 10. Moving groove, 11. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-2 This embodiment of an adjustable-length brush includes an extension block 1. The outer surface of the extension block 1 is covered with a sponge pad. The sponge pad makes the user more comfortable when using the brush, thereby effectively improving the overall practicality. An extension rod 2 is slidably connected inside the extension block 1. By sliding the extension rod 2, the length can be adjusted. A limiting block 3 is fixed on the right side of the extension rod 2, extending through the outside of the extension block 1. The limiting block 3 can effectively restrict the movement of the extension rod 2, making it easy to fix after adjustment. A moving groove 10 is provided on the left side of the extension block 1, which allows the limiting block 3 to move up and down.

[0023] In addition, a limiting groove 11 communicating with the moving groove 10 is provided on the back of the extension block 1. When the limiting block 3 slides into the limiting groove 11, the limiting block 3 is restricted from moving up and down. A limiting rod 4 is slidably connected inside the extension block 1. Sliding blocks are fixed on both the front and rear sides of the limiting rod 4. A sliding groove is provided inside the extension block 1 to slidably connect with the sliding blocks. The sliding blocks are located on the side biased towards the bottom of the limiting rod 4. Through the sliding connection between the sliding blocks and the extension block 1, the stability of the movement of the limiting rod 4 can be effectively improved, and the limiting rod 4 can be effectively prevented from separating from the extension block 1, thus making the whole more practical.

[0024] Furthermore, a fixing component 5 is fixed to the top of the limiting rod 4. The limiting rod 4 effectively restricts the rotation of the fixing component 5. The top of the extension rod 2 is rotatably connected to the fixing component 5. A fixing bearing is fixed to the bottom of the fixing block 501. The inside of the fixing bearing is fixed to the extension rod 2. The fixing bearing ensures that the rotation of the extension rod 2 will not affect the fixing component 5, thus making the use more stable. A brush 6 is fixed inside the fixing component 5. The fixing component 5 is used to make it easy to install and remove the brush 6. A connecting block 7 is fixed to the bottom of the extension block 1. An adjusting block 8 is threadedly connected to the outer surface of the connecting block 7. By rotating the adjusting block 8, the adjusting block 8 can be moved due to the compression of the thread, so that the length can be precisely adjusted, making the whole more practical. A hanging ring 9 is fixed to the bottom of the adjusting block 8.

[0025] In summary, when the limiting block 3 rotates into the moving groove 10, it can move up and down. However, when the limiting block 3 rotates into the limiting groove 11, it cannot move up and down, and the limiting rod 4 restricts the rotation of the brush 6, thus preventing the brush 6 from driving the limiting block 3 to rotate. When the brush 6 is in use, it can exert a certain amount of pressure on the limiting block 3, effectively increasing the friction between the limiting block 3 and the limiting groove 11, making the whole system more stable.

[0026] Please see Figure 3 To facilitate brush disassembly, the fixing component 5 in this embodiment includes a fixing block 501, a push rod 502, a fixing plate 503, a compression pad 504, and a control block 505. The fixing block 501 is fixed to the limiting rod 4. The front of the fixing block 501 is threadedly connected to the push rod 502. The push rod 502 is a threaded rod. The front of the fixing block 501 has a threaded hole that matches the threaded rod. Due to the threaded connection, the push rod 502 moves simultaneously when it rotates. The back of the push rod 502 is rotatably connected to the fixing plate 503. Through the rotatable connection and under the restriction of the fixing block 501, the fixing plate 503 will not rotate with the push rod 502.

[0027] In addition, the back of the fixing plate 503 is fixed to the compression pad 504. The compression pad 504 can effectively increase the friction between the fixing plate 503 and the brush 6, thereby making the fixing of the brush 6 more stable and effectively improving the overall stability. The front of the push rod 502 is fixed to the control block 505, and the outer surface of the control block 505 is fixed with friction strips.

[0028] In summary, by rotating the control block 505 to drive the push rod 502 to rotate, the push rod 502 drives the fixing plate 503 to move, thereby moving the fixing plate 503 away from the brush 6, making the brush 6 unfixed, which facilitates the replacement of the brush 6 and effectively improves the overall practicality.

[0029] The working principle of the above embodiments is as follows:

[0030] (1) When the length needs to be adjusted, the extension rod 2 is pulled to slide inside the extension block 1, thereby adjusting the angle. When it needs to be fixed, the extension rod 2 is rotated to make the limiting block 3 rotate from the moving groove 10 to the inside of the limiting groove 11, so that the extension rod 2 cannot move up and down. In use, the friction between the limiting block 3 and the extension block 1 is increased, making the whole more stable. The overall structure is simple and easy to adjust, effectively improving the overall practicality.

[0031] (2) When the brush 6 needs to be replaced, the push rod 502 is rotated by rotating the control block 505. When the push rod 502 is rotated, it will move under the push of the thread, thereby pulling the fixing plate 503 away from the brush 6, so that the brush 6 is not fixed and can be easily removed. The overall structure is simple, and the handle part can be reused after the brush 6 is damaged, thus effectively improving the overall practicality.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An adjustable-length brush, comprising an extension block (1), characterized in that: An extension rod (2) is slidably connected inside the extension block (1), and a limiting block (3) that extends through to the outside of the extension block (1) is fixed on the right side of the extension rod (2). A limiting rod (4) is slidably connected inside the extension block (1). The top of the limiting rod (4) is fixed with a fixing component (5), the top of the extension rod (2) is rotatably connected to the fixing component (5), a brush (6) is fixed inside the fixing component (5), the fixing component (5) is used to make the brush (6) easy to install and remove, a connecting block (7) is fixed at the bottom of the extension block (1), and an adjusting block (8) is threadedly connected to the outer surface of the connecting block (7). The fixing component (5) includes a fixing block (501), a push rod (502), a fixing plate (503), a compression pad (504), and a control block (505). The fixing block (501) is fixed to the limiting rod (4). The front side of the fixing block (501) is threadedly connected to the push rod (502). The back side of the push rod (502) is rotatably connected to the fixing plate (503). The back side of the fixing plate (503) is fixed to the compression pad (504). The front side of the push rod (502) is fixed to the control block (505).

2. A length-adjustable brush according to claim 1, characterized in that: The outer surface of the control block (505) is fixed with a friction strip, and the outer surface of the extension block (1) is covered with a sponge pad.

3. A length-adjustable brush according to claim 1, characterized in that: The push rod (502) is a threaded rod, and the front of the fixing block (501) is provided with a threaded hole that is compatible with the threaded rod.

4. An adjustable length brush according to claim 1, wherein: The bottom of the fixing block (501) is fixed with a fixing bearing, and the inside of the fixing bearing is fixed with the extension rod (2).

5. An adjustable length brush according to claim 1, wherein: The extension block (1) has a moving groove (10) on its left side and a limiting groove (11) communicating with the moving groove (10) on its back side.

6. An adjustable length brush according to claim 1, wherein: The limiting rod (4) has sliding blocks fixed on both the front and rear sides, and the extension block (1) has a sliding groove inside that is slidably connected to the sliding blocks.

7. An adjustable-length brush according to claim 6, characterized in that: The sliding block is located on one side of the bottom of the bias limit rod (4), and the bottom of the adjusting block (8) is fixed with a hanging ring (9).

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