A telescopic beam type automatic roll coater

Abstract

The utility model discloses a telescopic crossbeam formula automatic roll coating machine belongs to the building construction equipment technical field, the roll coating machine includes the crossbeam body, the slide bar of sliding connection in it and is used for locking or releasing the telescopic subassembly of slide bar, telescopic subassembly includes: the first connecting block of screw thread connection in the crossbeam body port and the inner wall is equipped with the tapered recess, coaxially arranged elastic second connecting block, the fixed block of sleeve setting in the outer periphery of slide bar and provide the first spring of pre -tightening force, under the pre -tightening force effect of first spring, second connecting block is pressed into tapered recess, drives fixed block clamping slide bar through the wedge effect, can conveniently adjust wedge tightness through rotating first connecting block, realizes reliable locking and quick release. The utility model solves the problem of the prior art in telescopic locking structure locking force deficiency or the problem of complicated operation, has the beneficial effect of locking stable and reliable, length adjustment convenient and labor saving.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a telescopic beam type automatic roller coating machine. Background Technology

[0002] Roller coaters are a common coating tool, widely used in building decoration and home painting because they can quickly and evenly coat large areas of flat surfaces such as walls.

[0003] However, traditional roller coating machines typically have a fixed handle length. When facing walls or ceilings of varying heights, operators frequently need to use ladders or other auxiliary tools, which is not only inconvenient and inefficient but also poses certain safety hazards. To solve this problem, roller coating machines with telescopic rods have appeared on the market, allowing users to adjust the overall length of the roller coating machine according to their work needs.

[0004] While existing telescopic roller coating machines offer some convenience, their telescopic locking mechanisms often suffer from design flaws. Some telescopic rods employ simple internal and external tube friction locking or snap-locking mechanisms, which, under high pressure during roller coating operations, lack sufficient locking force, easily leading to accidental slippage or retraction, affecting coating quality and the continuity of work. Other, more complex locking devices, while providing stronger locking force, are often cumbersome to operate, requiring considerable force to tighten or loosen, reducing the ease of length adjustment and failing to balance locking reliability with operational convenience.

[0005] Therefore, this utility model proposes a telescopic beam type automatic roller coating machine to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a telescopic beam automatic roller coating machine, which aims to improve the problems of insufficient locking force of the telescopic locking structure leading to accidental slippage, or cumbersome and laborious operation, and the inability to balance locking reliability and adjustment convenience in the telescopic beam automatic roller coating machine. This utility model aims to provide a telescopic beam automatic roller coating machine with an improved structure that can effectively solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a telescopic beam type automatic roller coating machine, comprising: a beam body, a slide rod slidably connected inside the beam body, a brush head detachably connected to one end of the slide rod; and a telescopic component disposed between the beam body and the slide rod for locking or releasing the slide rod.

[0008] The telescopic assembly includes a first connecting block threaded to the port of the crossbeam body, the inner wall of the first connecting block having an integrally formed conical groove; the telescopic assembly also includes a second connecting block coaxially disposed inside the first connecting block, the slide rod passing through the interior of the second connecting block; the telescopic assembly also includes a fixing block sleeved on the outer periphery of the slide rod for clamping the slide rod, and a first spring for applying a continuous preload to the fixing block.

[0009] The axial position of the second connecting block is between the conical groove of the first connecting block and the fixing block. The first spring is configured to continuously press the outer peripheral wall of the second connecting block against the inner wall of the conical groove of the first connecting block through the fixing block and the second connecting block, thereby forming a unique mechanical transmission and self-locking structure.

[0010] Preferably, the second connecting block is made of an elastic material.

[0011] Preferably, the first spring is a compression spring, and its two ends abut against the end walls of the fixing block and the second connecting block, respectively.

[0012] Preferably, the detachable connection between the slide bar and the brush head is achieved through a limiting component.

[0013] Preferably, the limiting component includes a third connecting block fixed to the end of the slide bar, and a limiting block rotatably connected inside the third connecting block.

[0014] Preferably, the limiting component further includes a connecting rod that serves as the fulcrum for the rotation of the limiting block, and the connecting rod is laterally disposed inside the third connecting block.

[0015] Preferably, the limiting component further includes a second spring for providing a reset force to the limiting block, the second spring being disposed inside the third connecting block and abutting against the limiting block.

[0016] Preferably, the end of the limiting block away from the second spring is provided with an integrated locking block, and the brush head is provided with a corresponding limiting structure that engages with the locking block.

[0017] Preferably, the telescopic beam automatic roller coating machine further includes a material feeding box and a pipe communicating with the material feeding box. The pipe is arranged side by side along the outside of the beam body and extends into the inside of the brush head.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting a telescopic component consisting of a first connecting block, an elastic second connecting block, a fixed block and a first spring, the sliding rod can be reliably clamped or released by the conical wedge clamping effect by rotating the first connecting block. This solves the problems of fixed working length, poor adaptability and complex or unreliable telescopic locking structure of existing roller coating machines, and achieves the technical effects of quick adjustment of working length, stable locking and convenient operation.

[0019] 2. This utility model, by setting a quick-release assembly consisting of a limiting block, a connecting rod, and a second spring, allows the locking block to be disengaged or locked by lever rotation and spring reset when the limiting block is pressed. This solves the problems of existing roller coating machines requiring tools for brush head replacement, cumbersome operation, low replacement efficiency, or unreliable locking. It achieves the technical effects of tool-free quick brush head replacement, stable locking, and convenient operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a telescopic beam automatic roller coating machine proposed in this utility model; Figure 2 This is a schematic diagram of the slide bar structure of a telescopic beam automatic roller coating machine proposed in this utility model; Figure 3 This is a schematic diagram of the first connecting block of a telescopic beam automatic roller coating machine proposed in this utility model. Figure 4 This is a schematic diagram of the brush head structure of a telescopic beam automatic roller coating machine proposed in this utility model.

[0021] Legend: 1. Feeding box; 2. Pipe; 3. Crossbeam body; 4. Telescopic assembly; 401. First connecting block; 402. Second connecting block; 403. Fixing block; 404. First spring; 5. Sliding rod; 6. Limiting assembly; 601. Third connecting block; 602. Connecting rod; 603. Limiting block; 604. Second spring; 7. Brush head. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1 to 4This utility model provides a telescopic beam type automatic roller coating machine, which aims to solve the problems of fixed working length, poor adaptability, complex telescopic locking structure or insufficient locking force, and cumbersome brush head replacement that affect efficiency in the prior art.

[0024] The telescopic beam automatic roller coating machine includes a beam body 3 and a slide rod 5 slidably connected inside the beam body 3. A brush head 7 is detachably connected to one end of the slide rod 5. The beam body 3 serves as the support and mounting platform for the entire device, while the slide rod 5 is used to adjust the overall working length of the roller coating machine. The telescopic beam automatic roller coating machine also includes a telescopic assembly 4 between the beam body 3 and the slide rod 5. The telescopic assembly 4 is used to lock after length adjustment or to release the slide rod 5 when adjustment is needed. Specifically, the telescopic assembly 4 includes a first connecting block 401 threaded to the port of the beam body 3. The inner wall of this first connecting block 401 has an integrally formed conical groove. The telescopic assembly 4 also includes a second connecting block 401 coaxially disposed inside the first connecting block 401. Block 402, the slide rod 5 passes through the central hole of the second connecting block 402, the telescopic assembly 4 further includes a fixing block 403 sleeved on the outer periphery of the slide rod 5, the fixing block 403 is used to directly clamp the slide rod 5 to generate a frictional locking force, the telescopic assembly 4 also includes a first spring 404 for applying a continuous preload force to the fixing block 403; in terms of assembly relationship, the axial position of the second connecting block 402 is between the conical groove of the first connecting block 401 and the fixing block 403, and the structure of the first spring 404 is configured to continuously press the outer peripheral wall of the second connecting block 402 against the inner wall of the conical groove of the first connecting block 401 through the fixing block 403 and the second connecting block 402, thereby forming a stable self-locking structure in the default state.

[0025] In the default locked state, the first spring 404, acting as a compression spring, continuously exerts its stored elastic force on the fixed block 403. The fixed block 403 then transmits the axial thrust to the second connecting block 402. This thrust causes the outer peripheral wall of the second connecting block 402, made of elastic material, to be forcefully pressed into and wedged tightly into the conical groove of the first connecting block 401. Since the wedge structure can amplify the axial force and the second connecting block 402 is elastic, this wedging action forces the second connecting block 402 to undergo radial contraction deformation, thereby driving the fixed block 403 to tightly clamp the sliding rod 5 that passes through with huge positive pressure, forming a stable and reliable friction self-locking mechanism. This structure ensures that the crossbeam length remains constant during the operation of the roller coating machine.

[0026] When the length needs to be adjusted, the first connecting block 401, which is threadedly connected to the crossbeam body 3, is rotated. Using the transmission principle of the thread, the first connecting block 401 moves axially, thereby driving the second connecting block 402 out of the conical groove. When the second connecting block 402 is released from the conical groove, the wedging force disappears, the elastic material of the second connecting block 402 returns to its original shape, and the driving force on the fixing block 403 is also released. At this time, the fixing block 403 no longer clamps the slide rod 5, and the slide rod 5 can slide freely in the crossbeam body 3 to adjust the length.

[0027] As a preferred embodiment of the telescopic component 4, the second connecting block 402 is made of an elastic material, such as rubber or polyurethane, which allows the second connecting block 402 to undergo elastic deformation under external force and return to its original shape after the external force is removed; the first spring 404 is preferably a compression spring, with its two ends abutting against the end walls of the fixing block 403 and the second connecting block 402, thereby providing a continuous and stable axial preload for the locking structure.

[0028] As a preferred embodiment of the brush head 7 connection method, the detachable connection between the slide bar 5 and the brush head 7 is achieved through a limiting component 6. The limiting component 6 includes a third connecting block 601 fixed to the end of the slide bar 5, and a limiting block 603 rotatably connected inside the third connecting block 601. More specifically, the limiting component 6 also includes a connecting rod 602 serving as the rotation fulcrum of the limiting block 603, and the connecting rod 602 is laterally fixed inside the third connecting block 601. The limiting component 6 further includes a second spring 604 for providing a reset elastic force to the limiting block 603. The second spring 604 is disposed inside the third connecting block 601 and abuts against the limiting block 603. An integral locking block is provided at the end of the limiting block 603 away from the second spring 604. The brush head 7 is correspondingly provided with a limiting structure that engages with the locking block. By pressing the limiting block 603 to overcome the elastic force of the second spring 604, the locking block can be disengaged from the limiting structure, allowing for quick replacement of the brush head 7.

[0029] As a preferred embodiment of the material supply method, the telescopic beam automatic roller coating machine also includes a material supply box 1 and a pipe 2 connected to the material supply box 1. The pipe 2 is arranged side by side along the outside of the beam body 3 and extends into the inside of the brush head 7 to realize the automated delivery of paint.

[0030] Working principle: During automatic feeding, paint is first injected into the feeding tank 1 and the built-in feeding pump is started. The paint is then forced into the pipe 2 and continuously transported to the inside of the brush head 7 along the external path of the crossbeam body 3, thereby realizing automated feeding of the brush head 7. When it is necessary to adjust the working length of the roller coating machine, the operator rotates the first connecting block 401. Since the first connecting block 401 is threadedly connected to the crossbeam body 3, the rotation will cause the first connecting block 401 to undergo axial displacement, thereby releasing the conical groove inside the first connecting block 401 from the outer peripheral wall of the second connecting block 402. Wedging force; after the wedging force disappears, the second connecting block 402, made of elastic material, returns to its original shape, thereby releasing the driving force on the fixing block 403. After the fixing block 403 loses pressure, it no longer clamps the slide rod 5. At this time, the slide rod 5 can slide freely within the crossbeam body 3 to the required length. After the length is adjusted to the correct position, the first connecting block 401 is rotated in the opposite direction. The continuous preload of the first spring 404 will press the second connecting block 402 back into the conical groove. Through the wedge-shaped force amplification effect and the elastic deformation of the second connecting block 402, the fixing block 403 is driven to firmly clamp the slide rod 5 again, completing the locking. When the brush head 7 needs to be replaced, the operator presses one end of the limiting block 603. After being pressed, the limiting block 603 will squeeze the second spring 604 and rotate around the connecting rod 602. This rotation will cause the integrated locking block at the other end of the limiting block 603 to disengage from the limiting structure inside the brush head 7. After the lock is released, the old brush head 7 can be removed and a new brush head 7 can be installed. During installation, simply align the new brush head 7 with the interface and push it in. The elastic force of the second spring 604 will automatically reset the limiting block 603, and the locking block will re-engage with the limiting structure, completing the quick replacement.

[0031] 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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A telescopic beam type automatic roller coating machine, comprising: The main body of the crossbeam (3); A sliding rod (5) is slidably connected inside the beam body (3); A brush head (7) detachably connected to one end of the slide bar (5); and A telescopic assembly (4) disposed between the crossbeam body (3) and the slide rod (5) for locking or releasing the slide rod (5) is characterized in that, The telescopic component (4) includes a first connecting block (401) threaded to the port of the beam body (3), and the inner wall of the first connecting block (401) is provided with an integrally formed conical groove. The telescopic assembly (4) further includes a second connecting block (402) coaxially disposed inside the first connecting block (401), and the slide rod (5) passes through the interior of the second connecting block (402); The telescopic assembly (4) further includes a fixing block (403) sleeved on the outer periphery of the slide rod (5) for clamping the slide rod (5), and a first spring (404) for applying a continuous preload to the fixing block (403). The axial position of the second connecting block (402) is between the conical groove of the first connecting block (401) and the fixing block (403), and the first spring (404) is configured to continuously press the outer peripheral wall of the second connecting block (402) against the inner wall of the conical groove of the first connecting block (401) through the fixing block (403) and the second connecting block (402).

2. The telescopic beam type automatic roller coating machine according to claim 1, characterized in that, The second connecting block (402) is made of an elastic material.

3. The retractable beam type automatic roller coating machine according to claim 1, characterized in that, The first spring (404) is a compression spring, and the two ends of the first spring (404) abut against the end walls of the fixing block (403) and the second connecting block (402), respectively.

4. The retractable beam type automatic roller coating machine according to claim 1, characterized in that, The detachable connection between the slide bar (5) and the brush head (7) is achieved by the limiting component (6).

5. The retractable beam type automatic roller coating machine according to claim 4, characterized in that, The limiting component (6) includes a third connecting block (601) fixed to the end of the slide bar (5) and a limiting block (603) rotatably connected inside the third connecting block (601).

6. The retractable beam type automatic roller coating machine according to claim 5, characterized in that, The limiting component (6) also includes a connecting rod (602) that serves as the fulcrum for the rotation of the limiting block (603), and the connecting rod (602) is laterally disposed inside the third connecting block (601).

7. The telescopic beam type automatic roller coating machine according to claim 6, characterized in that, The limiting component (6) further includes a second spring (604) for providing a reset force to the limiting block (603), the second spring (604) being disposed inside the third connecting block (601) and abutting against the limiting block (603).

8. The retractable beam automatic roller coating machine according to claim 7, characterized in that, The end of the limiting block (603) away from the second spring (604) is provided with an integrated locking block, and the brush head (7) is provided with a corresponding limiting structure that engages with the locking block.

9. The telescopic beam type automatic roller coating machine according to claim 1, characterized in that, The retractable beam automatic roller coating machine also includes a feed box (1) and a pipe (2) connected to the feed box (1). The pipe (2) is arranged side by side along the outside of the beam body (3) and extends into the inside of the brush head (7).

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