A paint roller holder with self-adaptable length

Abstract

The utility model relates to a length can be self -adaptation's paint roller bracket, it includes first tuber and second tuber, the upper end of first tuber is equipped with the rolling frame subassembly, the lower extreme of second tuber sleeve joint with, first tuber and second tuber between be equipped with telescopic mechanism, telescopic mechanism includes connecting piece and cam, the upper and lower ends of connecting piece are respectively inserted in first tuber and second tuber, the lower end of connecting piece forms eccentric support, cam and eccentric support eccentric connection, cam and eccentric support are formed with first stopper and second stopper respectively, second stopper is located in the rotation path of first stopper, cam through eccentric rotation and second tuber inner wall or the allocation of the resistance. The length of the paint roller bracket of the technical scheme allows free adjustment, thereby effectively adapting to the variable paint brushing operation scene, not only reduces the tool procurement cost, and can avoid the invalid working hours produced because of replacement, significantly improves the paint brushing operation efficiency, and alleviates the subsequent cleaning maintenance work burden.

Description

Technical Field

[0001] This utility model relates to the field of paint tool technology, and more specifically to a paint roller support with an adaptive length. Background Technology

[0002] A paint roller holder is a practical tool used to assist in roller painting operations. It is usually made of metal or plastic and has a frame structure with a handle. It can fix roller cores of different sizes. Its core function is to extend the construction distance and keep the roller stable, avoiding direct hand contact with paint. It is especially suitable for painting high walls, ceilings and other areas.

[0003] Currently, the handles of paint roller holders are usually of a fixed length. For example, Chinese Patent No. CN214885201U discloses a bearing-connected paint roller holder, which includes a handle, a support rod, and a roller holder. One end of the support rod is vertically fixedly connected to the handle, and the other end of the support rod is a horizontal bar for horizontally mounting the roller holder. The roller holder is rotatably mounted on the horizontal bar with the horizontal bar as its axis. The roller holder is used to hold paint brushes.

[0004] The handle of the aforementioned paint roller bracket is an integrated structure. Since its length cannot be adjusted, if the handle is not long enough when working at heights, the operator needs to frequently climb ladders to adjust their position, increasing safety risks. When working in low-lying areas, it may lead to awkward operating postures and accelerate fatigue. Moreover, this rigid design often forces operators to equip themselves with multiple sets of brackets of different specifications to adapt to changing scenarios, which not only increases tool procurement costs but also generates ineffective working hours during the replacement of paint roller brackets, resulting in a significant reduction in painting efficiency. At the same time, the subsequent cleaning and maintenance workload will also increase exponentially. Utility Model Content

[0005] In response to the above situation, to overcome the problem that the handle length of the aforementioned paint roller holder cannot be adjusted, making it unsuitable for various painting operation scenarios, it is often necessary for operators to equip themselves with multiple sets of holders of different specifications. This not only increases procurement costs but also generates unnecessary working hours during replacement, resulting in a significant reduction in work efficiency and a substantial increase in subsequent cleaning and maintenance workload. The purpose of this utility model is to provide a paint roller holder with a freely adjustable length, which can effectively adapt to various painting operation scenarios, reduce tool procurement costs, avoid unnecessary working hours caused by replacement, significantly improve painting operation efficiency, and reduce the burden of subsequent cleaning and maintenance work.

[0006] To achieve the above objectives, the technical solution of this utility model is: An adaptive length paint roller support includes a first tube and a second tube. The upper end of the first tube is provided with a roller frame assembly, and the lower end is sleeved with the upper end of the second tube. A telescopic mechanism is provided between the first tube and the second tube. The telescopic mechanism includes a connector and a cam. The upper and lower ends of the connector are respectively inserted into the first tube and the second tube. An eccentric support is formed at the lower end of the connector. The cam is eccentrically connected to the eccentric support. A first stop and a second stop are respectively formed on the cam and the eccentric support. The second stop is located on the rotation path of the first stop. The cam abuts against or disengages from the inner wall of the second tube through eccentric rotation.

[0007] Preferably, a limiting protrusion is formed on the outer wall of the cam.

[0008] Preferably, the cam has a deformation groove along the axial direction, and the limiting protrusion is formed on both sides of the deformation groove.

[0009] Preferably, a first retaining ring is formed on the outer peripheral wall of the connector, and a second retaining ring is formed on the outer peripheral wall of the eccentric support. The cam is clamped between the first and second retaining rings, a first stop is formed at the bottom of the cam, and a second stop is formed at the top of the first retaining ring.

[0010] Preferably, it also includes a third tube, the upper end of which is sleeved with the lower end of the second tube. The telescopic mechanism has two sets, one of which is located between the second and third tubes. The upper and lower ends of the connector of the telescopic mechanism are respectively inserted into the second and third tubes, and its cam abuts or disengages from the inner wall of the third tube through eccentric rotation.

[0011] Preferably, it also includes an upper sheath and a lower sheath, with the upper sheath located at the mating position between the first tube and the second tube, and the lower sheath located on the third tube.

[0012] Preferably, the outer walls of the upper sheath and the lower sheath are respectively provided with upper anti-slip texture and lower anti-slip texture.

[0013] Preferably, the roller assembly includes a support and a frame. The support is located at the upper end of the first tube, and an installation channel is provided in the middle of the support. The lower end of the frame is inserted into the installation channel, and the upper end is used to connect the paint roller.

[0014] Preferably, the side wall of the installation channel is provided with a slot, and the outer wall at the lower end of the frame is formed with a block. There are two sets of slots and blocks, and the blocks are inserted into the corresponding slots.

[0015] Compared with the prior art, the advantages of this utility model are: (1) The handle of the paint roller bracket of this utility model is composed of a first tube, a second tube and a third tube that are connected to each other. They can slide axially relative to each other, thereby realizing stepless length adjustment. During the paint painting operation, the operator can adjust the length of the handle according to the difference in the painting position, so as to effectively adapt to the changing paint painting operation scenarios. This not only reduces the purchase cost of tools, but also avoids the safety risks of using ladders for high-altitude operations, and avoids the ineffective working hours caused by frequent tool replacements. It significantly improves the efficiency of paint painting operations and reduces the workload of subsequent cleaning and maintenance.

[0016] (2) The paint roller bracket of this utility model is provided with a telescopic mechanism between the first tube, the second tube and the third tube. The cam of the telescopic mechanism abuts or disassembles with the inner wall of the second tube and the third tube to apply a tight fit and form a large static friction force. The rigid fixation of the first tube, the second tube and the third tube is achieved through friction self-locking, so as to avoid the handle length from being accidentally displaced during the paint painting operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the paint roller bracket of this utility model; Figure 2 This is a utility model Figure 1 A magnified structural diagram of part A; Figure 3 This is a schematic diagram of the overall structure of the paint roller bracket of this utility model when a paint roller is connected to it; Figure 4 This is an exploded structural diagram of the paint roller bracket of this utility model; Figure 5 This is a cross-sectional structural diagram of the paint roller bracket of this utility model; Figure 6 This is a utility model Figure 5 A schematic diagram of the enlarged structure of part B; Figure 7 This is a schematic diagram of the overall structure of the cam in the telescopic mechanism of the paint roller bracket of this utility model.

[0018] As shown in the figure: 1. First tube body; 2. Second tube body; A1. Roller assembly; A2. Telescopic mechanism; 3. Connector; 301. Eccentric support; 301a. Second retaining ring; 302. Second stop block; 303. First retaining ring; 4. Cam; 401. First stop block; 402. Limiting cam protrusion; 403. Deformation groove; 5. Third tube body; 6. Upper sheath; 601. Upper anti-slip texture; 7. Lower sheath; 701. Lower anti-slip texture; 8. Support; 801. Installation channel; 801a. Bayonet; 9. Frame; 901. Locking block; 10. Paint roller. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the purpose of simplifying the description and do not indicate or imply that the orientation is a specific orientation or specific orientation structure and operation. Therefore, they should not be construed as limiting this utility model.

[0021] Example 1: like Figure 1 as well as Figures 3 to 7As shown, a length-adaptive paint roller support includes a first tube 1 and a second tube 2. The upper end of the first tube 1 is provided with a roller frame assembly A1 for connecting the paint roller 10. The lower end of the first tube 1 is sleeved with the upper end of the second tube 2. The first tube 1 and the second tube 2 constitute the handle portion of the paint roller 10 support, for the operator to hold. The diameter of the first tube 1 is smaller than the diameter of the second tube 2, allowing the first tube 1 to be inserted into the second tube 2. The first tube 1 and the second tube 2 can slide axially relative to each other, thereby achieving stepless length adjustment. During the painting operation, the operator can adjust the handle according to the difference in painting position. The handle length is adjusted to effectively adapt to various painting scenarios, reducing tool procurement costs, avoiding safety risks associated with using ladders for high-altitude work, and preventing wasted time from frequent tool changes. This significantly improves painting efficiency and reduces the workload of subsequent cleaning and maintenance. Furthermore, to ensure a secure lock on the handle composed of the first tube 1 and the second tube 2, preventing accidental displacement during painting, a telescopic mechanism A2 is provided between the first tube 1 and the second tube 2. Specifically, the telescopic mechanism A2 includes a connector 3 and a cam 4. The upper and lower ends of the connector 3 are respectively inserted into the first tube 1 and the second tube 2. The upper end of the connector 3 is press-fitted with the inner wall of the first tube 1, and the lower end has a gap with the inner wall of the second tube 2. The lower end of the connector 3 forms an eccentric support 301, the axis of which is not collinear with the central axis of the main body of the connector 3. The cam 4 is sleeved on the eccentric support 301, thereby eccentrically connecting with the connector 3. The cam 4 can rotate eccentrically around the eccentric support 301. The cam 4 and the eccentric support 301 are respectively formed with a first stop 401 and a second stop 302. The second stop 302 is located on the rotation path of the first stop 401. That is to say, when the cam 4 and the eccentric support 301 rotate relative to each other, the first stop 401 and the second stop 302 will approach or move away. When the first stop 401 and the second stop 302 rotate relative to each other, the first stop 401 and the second stop 302 will move away from each other. The second stop 302 gradually approaches until they contact each other, forming a mechanical limit. At this time, the first tube 1 can be rotated to drive the eccentric support 301 to rotate, and then the second stop 302 pushes the first stop 401 to drive the cam 4 to rotate. When the cam 4 rotates eccentrically, its rotation center does not coincide with its geometric center, so it produces reciprocating oscillation. The points on its rim will show periodic radial displacement changes. In this way, the rim of the cam 4 can abut or dismount from the inner wall of the second tube 2. When abutting, the cam 4 will apply pressure to the inner wall of the second tube 2, forming a large static friction force. Through friction self-locking, the first tube 1 and the second tube 2 are rigidly fixed, avoiding accidental displacement of the handle length during paint painting operations.

[0022] like Figure 7As shown, a limiting protrusion 402 is formed on the outer wall of the cam 4. It can be understood that the limiting protrusion 402 is a protruding structure on the outer wall of the cam 4. The cam 4 abuts against the inner wall of the second tube 2 through the limiting protrusion 402. When the limiting protrusion 402 contacts the inner wall of the second tube 2, it generates a local pressure concentration effect. By increasing the pressure on the contact surface, the static friction is significantly improved, ensuring that the first tube 1 and the second tube 2 maintain a more secure locking state after the handle length is adjusted.

[0023] like Figure 7 As shown, the cam 4 has a deformation groove 403 along the axial direction, which makes the cam 4 have an overall annular structure. The two sides of the deformation groove 403 are the left and right ends of the cam 4. The eccentric support 301 is embedded in the cam 4 through the deformation groove 403, so that the cam 4 is connected to the eccentric support 301 in a clamping manner. The above structure not only ensures the reliability of the rotational connection of the cam 4, but also enables convenient assembly. The limiting protrusion 402 is formed on both sides of the deformation groove 403, that is, there are two sets of limiting protrusion 402. This can increase the contact points between the cam 4 and the second tube 2, further preventing the possibility of accidental deflection after the cam 4 is tightened, thereby ensuring that the first tube 1 and the second tube 2 can be locked more securely.

[0024] like Figure 6 and Figure 7 As shown, a first retaining ring 303, which is a ring platform, is formed on the outer peripheral wall of the connector 3, and a second retaining ring 301a is formed on the outer peripheral wall of the eccentric support 301. The first retaining ring 303 and the second retaining ring 301a are vertically opposite each other. The cam 4 is clamped between the first retaining ring 303 and the second retaining ring 301a, thereby maintaining a stable connection with the eccentric support 301 and preventing dislocation. A first stop block 401 is formed at the bottom of the cam 4, and a second stop block 302 is formed at the top of the first retaining ring 303, so that the second stop block 302 can be kept on the rotation path of the first stop block 401.

[0025] like Figures 1 to 5 As shown, the roller frame assembly A1 consists of two parts: a support member 8 and a frame 9. The support member 8 is located at the upper end of the first tube 1, and an installation channel 801 is opened in the middle of the support member 8. The frame 9 is rod-shaped, and the lower end of the frame 9 is inserted into the installation channel 801. The upper end of the frame 9 is used to connect the paint roller 10, providing support for the paint roller 10 and allowing the paint roller 10 to rotate. While firmly supporting the paint roller 10, it also ensures its rotational flexibility. The frame 9 is detachably connected to the support member 8 through a plug-in connection. The operator can replace the frame 9 with different specifications according to actual needs to meet diverse operational requirements.

[0026] like Figure 2As shown, a slot 801a is provided on the side wall of the installation channel 801, and a locking block 901 is formed on the outer wall of the lower end of the frame 9. There are two sets of slots 801a and locking blocks 901. It should be mentioned that the two sets of slots 801a and locking blocks 901 are symmetrically distributed. The locking block 901 is inserted into the corresponding slot 801a, thereby locking the connection. The inner wall of the slot 801a and the outer wall of the locking block 901 abut against each other. The mutual abutment of the contact surfaces achieves circumferential limiting, which plays a role in preventing rotation and preventing the frame 9 from deflecting, thus ensuring the stability of the fit between the frame 9 and the support 8.

[0027] Example 2: like Figure 1 , Figures 3 to 5 As shown, this embodiment is an optimized design based on embodiment 1 above. It also includes a third tube 5, the diameter of which is larger than that of the second tube 2. The upper end of the third tube 5 is sleeved with the lower end of the second tube 2. In this embodiment, the third tube 5, the first tube 1, and the second tube 2 form a handle, thereby extending the length of the handle and enabling the paint roller 10 bracket of this utility model to better adapt to the needs of high-altitude painting operations. The telescopic mechanism A2 has two sets, one set of which is located between the first tube 1 and the second tube 2. Another telescopic mechanism A2 is located between the second tube 2 and the third tube 5. The upper and lower ends of the connector 3 of the telescopic mechanism A2 are respectively inserted into the second tube 2 and the third tube 5, and the upper end is interference-fitted with the inner wall of the second tube 2. The cam 4 of the telescopic mechanism A2 abuts or disengages with the inner wall of the third tube 5 when rotating eccentrically. When abutting, the cam 4 will apply pressure to the inner wall of the third tube 5, forming a large static friction force. Through friction self-locking, the second tube 2 and the third tube 5 are rigidly fixed, avoiding accidental displacement of the handle length during paint painting.

[0028] like Figure 1 , Figures 3 to 5 As shown, it also includes an upper sheath 6 and a lower sheath 7. The upper sheath 6 is located at the mating position between the first tube body 1 and the second tube body 2, and the lower sheath 7 is located on the third tube body 5. Both the upper sheath 6 and the lower sheath 7 are made of rubber, which has good anti-slip properties. During the operation, the surface friction can be increased to effectively prevent slipping, thereby improving the operator's stable grip during the painting process and ensuring the painting quality.

[0029] like Figure 1 , Figure 3 and Figure 4As shown, upper anti-slip texture 601 and lower anti-slip texture 701 are formed on the outer walls of the upper sheath 6 and lower sheath 7, respectively. The surface texture increases the friction when in contact, so that the fingers fit tightly with the upper sheath 6 and lower sheath 7 when gripping. At the same time, the elasticity of the rubber itself allows the anti-slip texture to adapt to hand pressure and maintain a stable anti-slip effect in wet or oily environments, effectively improving the operability and safety during painting operations.

[0030] Combined with Examples 1 and 2, and referring to... Figures 1 to 7 The paint roller 10 bracket of this utility model consists of a first tube 1, a second tube 2, and a third tube 5 sequentially connected to form a handle. The first tube 1, second tube 2, and third tube 5 can slide axially relative to each other, thus achieving stepless length adjustment. During painting operations, the operator can adjust the handle length according to the different painting positions, effectively adapting to various painting scenarios. This not only reduces tool procurement costs but also avoids the safety risks associated with using ladders for high-altitude operations. Furthermore, it avoids the wasted time caused by frequent tool changes, significantly improving painting efficiency and reducing the workload of subsequent cleaning and maintenance. After adjustment, rotating the first tube 1 and the second tube 2 will cause the lower end of the first tube 1 to... When the connecting piece 3 of the telescopic mechanism A2 rotates, the second stop 302 on the first stop ring 303 of the connecting piece 3 rotates synchronously. When it rotates to abut against the first stop 401 of the cam 4, it pushes the cam 4 to rotate until the limiting protrusion 402 on the outer wall of the cam 4 is pressed against the inner wall of the second tube 2. Similarly, when the second tube 2 rotates, it drives the connecting piece 3 of the lower telescopic mechanism A2 to rotate. The second stop 302 on the first stop ring 303 of the connecting piece 3 rotates synchronously. When it rotates to abut against the first stop 401 of the cam 4, it pushes the cam 4 to rotate until the limiting protrusion 402 on the outer wall of the cam 4 is pressed against the inner wall of the third tube 5, so that the first tube 1, the second tube 2 and the third tube 5 are firmly locked together, preventing the handle from accidentally shifting during the painting operation.

[0031] The embodiments and descriptions above are merely illustrative of the principles and preferred embodiments of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A paint roller support with adaptive length, characterized in that, It includes a first tube (1) and a second tube (2). The upper end of the first tube (1) is provided with a roller assembly (A1), and the lower end is sleeved with the upper end of the second tube (2). A telescopic mechanism (A2) is provided between the first tube (1) and the second tube (2). The telescopic mechanism (A2) includes a connector (3) and a cam (4). The upper and lower ends of the connector (3) are respectively inserted into the first tube (1) and the second tube (2). An eccentric support (301) is formed at the lower end of the connector (3). The cam (4) is eccentrically connected to the eccentric support (301). A first stop (401) and a second stop (302) are respectively formed on the cam (4) and the eccentric support (301). The second stop (302) is located on the rotation path of the first stop (401). The cam (4) abuts against or disengages from the inner wall of the second tube (2) through eccentric rotation.

2. The paint roller support with adaptive length according to claim 1, characterized in that, A limiting protrusion (402) is formed on the outer wall of the cam (4).

3. The paint roller support with adaptive length according to claim 2, characterized in that, The cam (4) has a deformation groove (403) in the axial direction, and the limiting protrusion (402) is formed on both sides of the deformation groove (403).

4. The paint roller support with adaptive length according to claim 3, characterized in that, A first retaining ring (303) is formed on the outer peripheral wall of the connector (3), and a second retaining ring (301a) is formed on the outer peripheral wall of the eccentric support (301). The cam (4) is clamped between the first retaining ring (303) and the second retaining ring (301a). The first stop block (401) is formed at the bottom of the cam (4), and the second stop block (302) is formed at the top of the first retaining ring (303).

5. A length-adaptive paint roller bracket according to any one of claims 1 to 4, characterized in that, It also includes a third tube (5), the upper end of which is sleeved with the lower end of the second tube (2). The telescopic mechanism (A2) has two sets, one of which is located between the second tube (2) and the third tube (5). The upper and lower ends of the connector (3) of the telescopic mechanism (A2) are respectively inserted into the second tube (2) and the third tube (5), and its cam (4) abuts or disengages from the inner wall of the third tube (5) by eccentric rotation.

6. A length-adaptive paint roller bracket according to claim 5, characterized in that, It also includes an upper sheath (6) and a lower sheath (7), the upper sheath (6) being located at the mating position of the first tube (1) and the second tube (2), and the lower sheath (7) being located on the third tube (5).

7. A length-adaptive paint roller bracket according to claim 6, characterized in that, The upper sheath (6) and the lower sheath (7) are respectively provided with upper anti-slip texture (601) and lower anti-slip texture (701) on their outer walls.

8. A length-adaptive paint roller support according to any one of claims 1, 2, 3, 4, 6, or 7, characterized in that, The roller assembly (A1) includes a support (8) and a frame (9). The support (8) is located at the upper end of the first tube (1). An installation channel (801) is provided in the middle of the support (8). The lower end of the frame (9) is inserted into the installation channel (801), and the upper end is used to connect the paint roller (10).

9. A length-adaptive paint roller bracket according to claim 8, characterized in that, The installation channel (801) has a slot (801a) on its side wall, and a block (901) is formed on the outer wall of the lower end of the frame (9). There are two sets of slots (801a) and blocks (901), and the blocks (901) are inserted into the corresponding slots (801a).

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