Roller coating device for full-section coating of inner wall of U-shaped groove

Abstract

The utility model provides a U-shaped groove inner wall full-section coating roller coating device which comprises a bearing platform, a roller coating device and a roller coating device. A hollow circular tube is arranged in the cavity; the roller frame comprises a round rod supporting frame, and one end of the round rod supporting frame penetrates through the cavity, extends into the hollow round pipe and can slide along the interior of the hollow round pipe. The sliding block is arranged in the cavity in a sliding mode, and the other end of the round rod supporting frame is connected with the sliding block. The coating roller is arranged on the round rod supporting frame in a rolling manner; the coating circulating system comprises a spraying pipe and a spraying pump, one end of the coating circulating system is fixed to the round rod supporting frame and arranged close to the coating roller, and coating spraying holes are formed in the circumferential wall of the spraying pipe. The guide wheel set comprises guide wheels which are rotatably arranged at the bottom of the bearing platform, and the guide wheels are in transmission connection with the spraying pump. By means of the slidable roller frame and the coating circulating system, the coating position and the coating amount of the coating roller on the inner wall of the groove can be accurately controlled, stable movement of the device is ensured through the guide wheel set, and the coating operation efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering construction, in particular to a U-shaped trench inner wall full-section paint roller coating device. BACKGROUND

[0002] The U-shaped trench is often used in the drainage system of roads and bridges due to its high efficiency in drainage, strong water bearing capacity, durable material, simple installation and maintenance, and high self-cleaning performance, which can effectively collect and guide rainwater, prevent water accumulation, and ensure the safety and traffic efficiency of roads and bridges. In order to prevent leakage of the U-shaped trench, protect the inner wall and prolong the service life, the inner wall usually needs to be fully brushed with paint.

[0003] Under normal circumstances, the inner wall of the trench is coated by a single roller, which is repeatedly rolled on both sides and the bottom surface. There is no special tool for the operation, and it cannot be formed at one time. It is time-consuming and labor-intensive. The conventional brushing is manually brushed by a single roller on the U-shaped section, which is time-consuming and labor-intensive, and the brushing thickness is difficult to control, resulting in uneven surface or even peeling, which directly affects the appearance quality. In addition, the paint content on the roller is different during each rolling, resulting in inconsistent thickness of the paint roller coating, and the construction quality is difficult to guarantee. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present application is to provide a U-shaped trench inner wall full-section paint roller coating device to solve the problems of low efficiency and difficult to guarantee the quality.

[0005] In one aspect of the present application, a U-shaped trench inner wall full-section paint roller coating device is provided, comprising: a bearing platform, a roller frame, a guide wheel set and a paint circulation system;

[0006] One side of the bearing platform is provided with a cavity, and the other side is fixed with a paint bucket. A hollow pipe is arranged in the cavity.

[0007] The roller frame includes a round rod support frame, one end of which penetrates the cavity and extends into the hollow pipe, and is slidable along the inside of the hollow pipe.

[0008] A sliding block is slidably arranged in the cavity, and the other end of the round rod support frame is connected with the sliding block.

[0009] A paint roller is rollably arranged on the round rod support frame.

[0010] The paint circulation system includes a spraying pipe and a spraying pump, one end of which is fixed on the round rod support frame and arranged close to the paint roller. The peripheral wall of the spraying pipe is provided with a paint spraying hole for spraying paint onto the paint roller.

[0011] The guide wheel set comprises a guide wheel rotatably arranged at the bottom of the bearing platform, and the guide wheel is in driving connection with the spraying pump.

[0012] Further, the hollow circular pipe comprises a first circular pipe and a second circular pipe, both of which are horizontally arranged in the cavity.

[0013] The sliding block comprises a first sliding block and a second sliding block, the first sliding block is slidably arranged in the first circular pipe, and the second sliding block is slidably arranged in the second circular pipe.

[0014] Further, the drum frame further comprises a thrust spring, the thrust spring is sleeved on the hollow circular pipe and located in the cavity.

[0015] The thrust spring comprises a first spring and a second spring, the first spring is sleeved on the first circular pipe, one end of the first spring is in abutment with the first sliding block, and the other end of the first spring is in abutment with the inner wall of one side of the cavity.

[0016] The second spring is sleeved on the second circular pipe, one end of the second spring is in abutment with the second sliding block, and the other end of the second spring is in abutment with the inner wall of the other side of the cavity.

[0017] Further, one end of the first circular pipe is a first inlet end, and one end of the second circular pipe is a second inlet end.

[0018] The first inlet end and the second inlet end are oppositely arranged in the transverse position.

[0019] The circular rod support frame comprises two groups, which respectively extend into the first circular pipe and the second circular pipe through the first inlet end and the second inlet end.

[0020] Further, the circular rod support frame comprises a first support frame and a second support frame; the first support frame and the second support frame are the same in structure and are arranged in front of and behind each other.

[0021] The first support frame and the second support frame are both square structures composed of four rod members, the four rod members are respectively an upper horizontal rod member, a lower horizontal rod member, a left vertical rod member and a right vertical rod member, one end of the upper horizontal rod member of the first support frame extends into the first circular pipe through the first inlet end, one end of the right vertical rod member adjacent to the upper horizontal rod member of the first support frame is fixed on the first sliding block, and the lower horizontal rod member and the left vertical rod member of the first support frame are circularly and smoothly connected at an angle, forming a first corner part.

[0022] One end of the upper horizontal rod of the second support frame extends into the second circular tube through the second inlet end, and one end of the left vertical rod adjacent to the upper horizontal rod of the second support frame is fixed on the second sliding block, and the included angle between the lower horizontal rod and the right vertical rod of the second support frame is smoothly transitioned to form a second corner part;

[0023] The spraying pipe has a plurality of pipes, which are respectively connected with the first support frame and the second support frame.

[0024] Further, the paint roller comprises a vertical paint roller, a horizontal paint roller and a corner paint roller.

[0025] The paint roller has two groups, and the vertical paint roller is rotatably sleeved on the left vertical rod of the first support frame and the right vertical rod of the second support frame respectively.

[0026] The horizontal paint roller is rotatably sleeved on the lower horizontal rod of the first support frame and the lower horizontal rod of the second support frame respectively.

[0027] The corner paint roller is rotatably sleeved on the first corner part between the left vertical rod and the lower horizontal rod of the first support frame and the second corner part between the right vertical rod and the lower horizontal rod of the second support frame.

[0028] Further, the spraying pipe is a hard pipe, and the spraying pipe comprises a first spraying pipe and a second spraying pipe, one end of the first spraying pipe is fixed on the first support frame, and the second spraying pipe is fixed on the second support frame.

[0029] The other end of the first spraying pipe and the second spraying pipe extends along the direction of the paint pipe and is arranged close to the outer peripheral wall in the length direction of the paint roller.

[0030] Further, the paint circulation system further comprises a hose.

[0031] The hose has multiple sections, which are respectively arranged between the spraying pump and the paint bucket, between the spraying pump and the first spraying pipe, between the spraying pump and the second spraying pipe, and between the first spraying pipe and the second spraying pipe.

[0032] Further, a first transmission wheel is arranged on the spraying pump, and a second transmission wheel is arranged on the guide wheel.

[0033] A transmission belt is arranged between the first transmission wheel and the second transmission wheel, for driving connection between the first transmission wheel and the second transmission wheel.

[0034] Further, the guide wheel set further comprises a supporting leg, one end of the supporting leg is rotatably arranged at the bottom of the bearing platform, and the guide wheel is rotatably connected to the other end of the supporting leg.

[0035] The spraying pump is fixed on the supporting leg and arranged close to one end of the bearing platform.

[0036] Compared with the prior art, the application has at least one of the following beneficial effects:

[0037] 1. Two groups of vertical, horizontal and corner paint rollers are adopted, the full section of the inner wall of the U-shaped groove can be covered, the full-section roller coating can be completed in one operation, and the operation efficiency is improved.

[0038] 2. The paint is sprayed out from the hard pipe spray hole through the spraying pump pressure, the discharge is relatively balanced, and the paint roller coating quality is improved.

[0039] 3. The drum frame is designed to be movable, is tightly attached to the side wall of the U-shaped groove through the thrust spring, can be suitable for paint construction of grooves with different widths, and the paint spraying power is derived from the power of the guide wheel rotation when manually pulled, without additional power supply. BRIEF DESCRIPTION OF DRAWINGS

[0040] Other features, objects and advantages of the application will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0041] Figure 1 It is an embodiment of the application that a U-shaped groove inner wall full-section paint roller coating device structure diagram.

[0042] Figure 2 It is an embodiment of the application that a U-shaped groove inner wall full-section paint roller coating device side view.

[0043] In the figure: 1, bearing platform; 11, cavity; 12, hollow circular pipe; 121, first circular pipe; 122, second circular pipe; 2, drum frame; 21, circular rod support frame; 211, first support frame; 212, second support frame; 22, sliding block; 221, first sliding block; 222, second sliding block; 23, paint roller; 231, vertical paint roller; 232, horizontal paint roller; 233, corner paint roller; 24, thrust spring; 241, first spring; 242, second spring; 3, guide wheel set; 31, guide wheel; 311, second transmission wheel; 32, supporting leg; 4, paint circulation system; 41, paint bucket; 42, spraying pipe; 421, first spraying pipe; 422, second spraying pipe; 423, paint spray hole; 43, spraying pump; 431, first transmission wheel; 44, hose; 5, transmission belt. DETAILED DESCRIPTION

[0044] The application will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the application. These are within the scope of protection of the application.

[0045] It should be understood that the terms "first", "second", etc. in the following examples are used to distinguish different objects, not to describe a specific order. The terms "include" and "contain" used indicate the presence of the described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets. In the description of the specification, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0046] Referring to Figure 1 As shown in the figure, it is an embodiment of the application, a U-shaped groove inner wall full-face paint roller coating device, including a bearing platform 1, a roller frame 2, a guide wheel set 3 and a paint circulation system 4.

[0047] One side of the bearing platform 1 is provided with a cavity 11, and the other side is fixed with a paint bucket 41; the cavity 11 is provided with a hollow pipe 12; the roller frame 2 includes a round rod support frame 21, one end of which penetrates the cavity 11 and extends into the hollow pipe 12, and is slidable along the inside of the hollow pipe 12; the sliding block 22 is slidably arranged in the cavity 11, and the other end of the round rod support frame 21 is connected with the sliding block 22; the paint roller 23 is rollably arranged on the round rod support frame 21.

[0048] The paint circulation system 4 includes a spraying pipe 42 and a spraying pump 43, one end of which is fixed on the round rod support frame 21, close to the paint roller 23, and the peripheral wall of the spraying pipe 42 is provided with a paint spraying hole 423 for spraying paint on the paint roller 23.

[0049] The guide wheel set 3 includes a guide wheel 31 rotatably arranged at the bottom of the bearing platform 1, and the guide wheel 31 is in driving connection with the spraying pump 43.

[0050] This application achieves full-section roller coating of paint on the inner wall of a U-shaped groove by organically combining a support platform 1, a roller frame 2, a guide wheel assembly 3, and a paint circulation system 4. The hollow tube 12 and slider 22 allow the roller to slide inside the tube, adjusting its position to accommodate U-shaped grooves of varying depths and widths. The paint circulation system 4, through a spray pipe 42 and a spray pump 43, along with paint nozzles 423, evenly sprays paint onto the paint roller 23, ensuring that the roller 23 evenly coats the inner wall of the U-shaped groove during its rolling motion. The guide wheel assembly 3 allows the support platform 1 to move smoothly within the U-shaped groove, and the transmission connection between the guide wheel 31 and the spray pump 43 simplifies the operation process. Construction personnel only need to push the support platform 1 to achieve uniform roller coating, significantly improving construction efficiency.

[0051] In some specific embodiments, the hollow circular tube 12 includes a first circular tube 121 and a second circular tube 122, both of which are horizontally disposed within the cavity 11; the slider 22 includes a first slider 221 and a second slider 222, the first slider 221 being slidably disposed on the first circular tube 121, and the second slider 222 being slidably disposed on the second circular tube 122.

[0052] Among them, the bearing platform 1 is a flat plate structure made of rigid material. The rear of the bearing platform is hollowed out, and two hollow round tubes 12 are installed horizontally in the cavity 11. A paint bucket 41 is fixed at the front.

[0053] Specifically, the hollow circular tube 12 includes a first circular tube 121 and a second circular tube 122, which are arranged laterally in the cavity 11. The slider 22 is divided into a first slider 221 and a second slider 222. The first slider 221 and the second slider 222 are provided with horizontal circular holes in the middle. The first slider 221 and the second slider 222 are wrapped around the first circular tube 121 and the second circular tube 122 of the hollow circular tube 12 of the bearing platform 1, and can slide along the first circular tube 121 and the second circular tube 122. During the sliding process of the slider 22, the circular rod support frame 21 can slide inside the hollow circular tube 12.

[0054] In some specific embodiments, the roller frame 2 further includes a thrust spring 24, which is sleeved on the hollow circular tube 12 and located inside the cavity 11. The thrust spring 24 includes a first spring 241 and a second spring 242. The first spring 241 is sleeved on the first circular tube 121, with one end abutting against the first slider 221 and the other end abutting against the inner wall of one side of the cavity 11. The second spring 242 is sleeved on the second circular tube 122, with one end abutting against the second slider 222 and the other end abutting against the inner wall of the other side of the cavity 11.

[0055] In some specific embodiments, one end of the first circular tube 121 is a first inlet end, and one end of the second circular tube 122 is a second inlet end; the first inlet end and the second inlet end are oppositely arranged in the transverse direction; the circular rod support frame 21 includes two groups, which respectively extend into the first circular tube 121 and the second circular tube 122 through the first inlet end and the second inlet end.

[0056] By oppositely arranging the first inlet end and the second inlet end in the transverse direction of the cavity 11, and by arranging the circular rod support frame 21 into two groups which respectively extend into the first circular tube 121 and the second circular tube 122 through the first inlet end and the second inlet end, when the internal space of the U-shaped groove is reduced, the first slider 221 compresses the first spring 241, and the second slider 222 compresses the second spring 242, so that the two groups of circular rod support frames 21 are stretched in the same amount in the two directions of the transverse direction of the U-shaped groove, closely adhere to the inner circumferential wall of the U-shaped groove, and complete the spraying work.

[0057] In some specific embodiments, the circular rod support frame 21 includes a first support frame 211 and a second support frame 212; wherein the first support frame 211 and the second support frame 212 are both square structures composed of four rod members. Each rod member constitutes one side of the square, and there is a smooth transition at the connection between two adjacent sides in each square; in addition, the ends of the two adjacent sides are respectively connected with the slider. Among them, the two adjacent sides correspond to two opposite angles of the square.

[0058] The first support frame 211 and the second support frame 212 are the same in structure and are arranged in front of and behind each other. For ease of description, the four rod members in the first support frame 211 and the second support frame 212 are described as upper horizontal rod members, lower horizontal rod members, left vertical rod members, and right vertical rod members. One end of the upper horizontal rod member in the first support frame 211 extends into the first circular tube 121 through the first inlet end, and one end of the right vertical rod member adjacent to the upper horizontal rod member of the first support frame 211 is fixed on the first slider 221, and the included angle between the lower horizontal rod member and the left vertical rod member of the first support frame 211 is smoothly transitioned to form a first corner part. One end of the upper horizontal rod member of the second support frame 212 extends into the second circular tube 122 through the second inlet end, and one end of the left vertical rod member adjacent to the upper horizontal rod member of the second support frame 212 is fixed on the second slider 222, and the included angle between the lower horizontal rod member and the right vertical rod member of the second support frame 212 is smoothly transitioned to form a second corner part.

[0059] In a preferred embodiment, with reference to Figure 1As shown, the first support frame 211 includes an upper horizontal rod, a lower horizontal rod, a left vertical rod, and a right vertical rod. One end of the upper horizontal rod of the first support frame 211 extends into the first circular tube 121 through a first inlet end, and one end of the right vertical rod adjacent to the upper horizontal rod is fixed on the first sliding block 221. The included angle between the lower horizontal rod and the left vertical rod is smoothly transitioned to form a corner part. Correspondingly, the second support frame 212 also includes four rods, which form a square or rectangle, i.e., two adjacent sides are perpendicular to each other. One end of the upper horizontal rod extends into the second circular tube 122 through a second inlet end, and one end of the left vertical rod adjacent to the upper horizontal rod is fixed on the second sliding block 222. The included angle between the lower horizontal rod and the right vertical rod is smoothly transitioned to form a corner part. The spraying pipe 42 has a plurality of pipes, which are connected with the first support frame 211 and the second support frame 212, respectively.

[0060] In the above embodiment, the first support frame 211 and the second support frame 212 have the same structure. However, the positions are arranged differently. The structures of the first support frame 211 and the second support frame 212 are arranged in front of and behind each other, as shown in Figure 1 As shown, the corner parts in the square of the first support frame 211 and the second support frame 212 and the two sides corresponding to the corner parts are located on the outer side of the entire support frame, which is used for installing the paint roller and facilitates the realization of roll coating.

[0061] In an embodiment, the circular rod support frame 21 is made of hard material and includes two groups, i.e., the first support frame 211 and the second support frame 212. The first support frame 211 and the second support frame 212 are square structures. The paint roller 23 is rotatable and arranged on the circular rod support frame 21 with the circular rod support frame 21 as the rotation shaft. One end of the first support frame 211 and the second support frame 212 penetrates into the hollow circular tube 12 of the bearing platform 1 horizontally and can slide in the hollow circular tube 12. The other end of the first support frame 211 and the second support frame 212 is fixed on the bottom of the sliding block 22 and arranged in the U-shaped groove with different inner diameters. The first support frame 211 and / or the second support frame 212 can be manually compressed into the bearing platform 1 to reduce the peripheral size of the device, and then the device is placed in the U-shaped groove, and the paint roller 23 is tightly attached to the inner wall of the U-shaped groove.

[0062] The paint roller 23 comprises vertical paint rollers 231, horizontal paint rollers 232 and corner paint rollers 233. The paint roller 23 has two groups, the vertical paint rollers 231 are rotatably sleeved on the left vertical rod of the first support frame 211 and the right vertical rod of the second support frame 212 respectively, the horizontal paint rollers 232 are rotatably sleeved on the lower horizontal rod of the first support frame 211 and the lower horizontal rod of the second support frame 212 respectively, and the corner paint rollers 233 are rotatably sleeved on the first corner between the left vertical rod and the lower horizontal rod of the first support frame 211 and the second corner between the right vertical rod and the lower horizontal rod of the second support frame 212.

[0063] Specifically, the vertical paint rollers 231 of one group of paint rollers 23 are sleeved on the left vertical rod of the first support frame 211, the horizontal paint rollers 232 are sleeved on the lower horizontal rod of the first support frame 211, and the corner paint rollers 233 are sleeved on the first corner between the left vertical rod and the lower horizontal rod.

[0064] The vertical paint rollers 231 of the other group of paint rollers 23 are sleeved on the right vertical rod of the second support frame 212, the horizontal paint rollers 232 are sleeved on the lower horizontal rod of the second support frame 212, and the corner paint rollers 233 are sleeved on the second corner between the right vertical rod and the lower horizontal rod.

[0065] Specifically, the drum frame 2 is composed of a square round rod support frame 21 formed by a hard round rod, vertical paint rollers 231, horizontal paint rollers 232, corner paint rollers 233, sliding blocks 22 and thrust springs 24. The three paint rollers 23 are rotatable around the round rod support frame 21 and are respectively installed on the vertical direction, the horizontal direction and the corner between the vertical direction and the horizontal direction of the round rod support frame 21. The horizontal round rods (the horizontal rods mentioned above) of the first support frame 211 and the second support frame 212 of the round rod support frame 21 are respectively inserted into the first hollow round pipe 121 and the second hollow round pipe 122 of the bearing platform 1 and slide in the hollow round pipes 12. The other ends of the first support frame 211 and the second support frame 212 are vertical support round rods, the top ends of which are fixed to the bottom of the sliding block 22. The middle part of the sliding block 22 is provided with a horizontal round hole, the sliding block 22 is wrapped on the hollow round pipe 12 of the bearing platform 1 and can slide along the hollow round pipe 12. The thrust spring 24 is arranged between the outer side of the sliding block 22 and the inner wall of the cavity 11 of the bearing platform 1, and the spring is sleeved on the hollow round pipe 12 to push the entire drum frame 2 outward. The first support frame 211 and the second support frame 212 are arranged in mirror image and staggered position relative to the bearing platform 1.

[0066] In some specific embodiments, the spray pipe 42 is a rigid pipe, which includes a first spray pipe 421 and a second spray pipe 422. One end of the first spray pipe 421 is fixed on the first support frame 211, and the second spray pipe 422 is fixed on the second support frame 212. The other ends of the first spray pipe 421 and the second spray pipe 422 extend along the direction of the paint pipe and are disposed close to the outer peripheral wall of the paint roller 23 along its length direction.

[0067] Specifically, the overall stability of the roller frame 2 is ensured by a square support frame formed by rigid support rods, while the design of the support frame being able to slide axially along the hollow circular tube 12 of the bearing platform 1 achieves the flexibility of the roller frame 2 in the axial direction. The vertical paint roller 231, horizontal paint roller 232, and corner paint roller 233 are set up to perform paint operations in different directions (vertical, horizontal, and corner), achieving comprehensive coverage of complex surfaces. The slider 22 and the thrust spring 24 enable the roller frame 2 to adaptively conform to the inner wall of the cavity 11 of the bearing platform 1 and maintain a certain thrust to push it outward, enhancing the stability of the roller frame 2 and making the paint operation more uniform and continuous, thus improving work efficiency. The roller frame 2 is provided in two sets and is arranged in a mirror image and staggered front and back relative to the bearing platform 1, so that the two roller frames 2 can work simultaneously without interfering with each other, greatly improving the efficiency of the paint operation.

[0068] Reference Figure 2 As shown, in some specific embodiments, the guide wheel assembly 3 also includes a support leg 32, one end of which is rotatably disposed at the bottom of the support platform 1, and the guide wheel 31 is rotatably connected to the other end of the support leg 32; the spray pump 43 is fixed on the support leg 32 and disposed near the end of the support platform 1.

[0069] Specifically, the guide wheel assembly 3 consists of a guide wheel 31 and a support leg 32. The upper part of the support leg 32 extends into the front end of the bearing platform 1 and can rotate freely around the vertical axis. The guide wheel 31 is installed at the bottom of the support leg 32. A coaxial transmission wheel is fixedly installed on one side of the guide wheel 31. In use, paint is poured into the paint bucket 41 and the device is pushed and pulled back and forth. The guide wheel 31 drives the spray pump 43 to work, so that the spray pipe 42 and the hose 44 are filled with paint.

[0070] In some specific embodiments, the paint circulation system 4 further includes a hose 44; the hose 44 has multiple sections, which are respectively disposed between the spray pump 43 and the paint tank 41, between the spray pump 43 and the first spray pipe 421, the second spray pipe 422, and between the first spray pipe 421 and the second spray pipe 422.

[0071] In some specific embodiments, the spray pump 43 is provided with a first drive wheel 431 and the guide wheel 31 is provided with a second drive wheel 311; a drive belt 5 is provided between the first drive wheel 431 and the second drive wheel 311 for driving connection between the first drive wheel 431 and the second drive wheel 311.

[0072] Specifically, the paint circulation system 4 consists of a hose 44, a spray pipe 42, and a spray pump 43. The spray pipe 42 is a rigid pipe arranged in a square shape close to the inner wall of the vertical paint roller 231, the horizontal paint roller 232, and the corner paint roller 233. The starting and ending ends of the spray pipe 42 are fixed to the round rod support frame 21 nearby. Paint spray holes 423 are evenly distributed on the side wall of the spray pipe 42 close to the paint roller 23. The spray pump 43 is fixed on the upper part of the support leg 32 of the guide wheel assembly 3. The spray pump 43 is equipped with a first transmission wheel 431, which is connected to the second transmission wheel 311 on the guide wheel 31 through the transmission belt 5, so that the power of the guide wheel 31 when rotating is input into the spray pump 43. The paint bucket 41, the two spray pipes 42, and the spray pump 43 are all connected by hoses 44 of appropriate length, which together form a paint spray circulation loop.

[0073] When in use, pull the device forward, and the paint will be automatically rolled onto the entire cross-section of the U-shaped groove, thus completing the operation.

[0074] By introducing a flexible hose 44 as the medium for paint transfer, the connection between the spraying equipment and the paint bucket 41 can be arranged more flexibly. The multiple hoses 44 allow the system to adapt to different spatial layouts and spraying needs, improving the flexibility and adaptability of the overall layout. The hoses 44 can also reduce stress concentration caused by rigid pipe connections and reduce the risk of paint leakage due to pipe rupture or loose connections. By setting a transmission belt 5 between the first drive wheel 431 and the second drive wheel 311, the synchronous movement of the spraying pump 43 and the guide wheel 31 can be achieved, ensuring uniform distribution of paint and stable spraying effect during the spraying process, thus improving the spraying quality.

[0075] The specific embodiments of this application have been described above. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. A full-face coating roll coating device for the inner wall of a U-shaped trench, characterized by, The utility model relates to a kind of painting device, including: Carrying platform, drum frame, guide wheel group and paint circulation system; One side of the carrying platform is provided with a cavity, and the other side is fixed with a paint bucket, a hollow pipe is arranged in the cavity; The drum frame includes a round rod support frame, one end of which penetrates the cavity and extends into the hollow pipe, and is slidable along the inside of the hollow pipe; A sliding block is slidably arranged in the cavity, and the other end of the round rod support frame is connected to the sliding block; A paint roller is rollably arranged on the round rod support frame; The paint circulation system includes a spraying pipe and a spraying pump, one end of which is fixed to the round rod support frame and arranged near the paint roller, and the peripheral wall of the spraying pipe is provided with a paint injection hole for spraying paint onto the paint roller; The guide wheel group includes a guide wheel rotatably arranged at the bottom of the carrying platform, and the guide wheel is drivingly connected to the spraying pump.

2. The U-shaped trench inner wall full-face paint roller coating device according to claim 1, characterized in that, The hollow pipe includes a first pipe and a second pipe, both of which are horizontally arranged in the cavity; The sliding block includes a first sliding block and a second sliding block, the first sliding block is slidably arranged in the first pipe, and the second sliding block is slidably arranged in the second pipe.

3. A U-shaped trench inner wall full-face paint roller coating device according to claim 2, characterized in that, The drum frame further includes a thrust spring, which is sleeved on the hollow pipe and located in the cavity; The thrust spring includes a first spring and a second spring, the first spring is sleeved on the first pipe, one end of which abuts against the first sliding block, and the other end abuts against the inner wall of one side of the cavity; The second spring is sleeved on the second pipe, one end of which abuts against the second sliding block, and the other end abuts against the inner wall of the other side of the cavity.

4. The U-shaped trench inner wall full-face paint roller coating device according to claim 2, characterized in that, One end of the first pipe is a first inlet end, and one end of the second pipe is a second inlet end; The first inlet end and the second inlet end are arranged opposite in the transverse direction; The round rod support frame includes two groups, which extend into the first pipe and the second pipe through the first inlet end and the second inlet end respectively.

5. A U-shaped trench inner wall full-face paint roller coating device according to claim 4, characterized in that, The round rod support frame includes a first support frame and a second support frame, which are identical in structure and arranged staggered front and back; The first support frame and the second support frame are both square structures composed of four rods, which are upper horizontal rods, lower horizontal rods, left vertical rods and right vertical rods, one end of the upper horizontal rod of the first support frame extends into the first pipe through the first inlet end, one end of the right vertical rod adjacent to the upper horizontal rod of the first support frame is fixed to the first sliding block, and the included angle between the lower horizontal rod and the left vertical rod of the first support frame is circularly and smoothly transitioned to form a first corner part; One end of the upper horizontal rod of the second support frame extends into the second pipe through the second inlet end, one end of the left vertical rod adjacent to the upper horizontal rod of the second support frame is fixed to the second sliding block, and the included angle between the lower horizontal rod and the right vertical rod of the second support frame is circularly and smoothly transitioned to form a second corner part; The spraying pipe has a plurality of, which are connected to the first support frame and the second support frame respectively.

6. A U-shaped trench inner wall full-face paint roller coating device according to claim 5, characterized in that, The coating roller comprises a vertical coating roller, a horizontal coating roller and a corner coating roller; The coating roller has two groups, and the vertical coating rollers are rotatably sleeved on the left vertical rod of the first support frame and the right vertical rod of the second support frame, respectively; The horizontal coating rollers are rotatably sleeved on the lower horizontal rod of the first support frame and the lower horizontal rod of the second support frame, respectively; The corner coating rollers are rotatably sleeved on the first corner part between the left vertical rod and the lower horizontal rod of the first support frame and the second corner part between the right vertical rod and the lower horizontal rod of the second support frame, respectively.

7. A full-face coating roller device for the inner wall of a U-shaped trench according to claim 5, characterized in that, The spraying pipe is a hard pipe, and the spraying pipe comprises a first spraying pipe and a second spraying pipe, one end of the first spraying pipe is fixed on the first support frame, and the second spraying pipe is fixed on the second support frame; The other end of the first spraying pipe and the second spraying pipe extends along the direction of the coating pipe and is arranged close to the outer peripheral wall in the length direction of the coating roller.

8. A full-face coating roller device for the inner wall of a U-shaped trench according to claim 7, characterized in that, The coating circulation system further comprises a hose; The hose has multiple sections, which are arranged between the spraying pump and the coating barrel, between the spraying pump and the first spraying pipe, between the second spraying pipe, and between the first spraying pipe and the second spraying pipe.

9. The U-shaped trench inner wall full-face paint roller coating device according to claim 1, characterized in that, The spraying pump is provided with a first transmission wheel, and the guide wheel is provided with a second transmission wheel; A transmission belt is arranged between the first transmission wheel and the second transmission wheel, and the first transmission wheel and the second transmission wheel are drivingly connected.

10. The U-shaped trench inner wall full-face paint roller coating device according to claim 1, characterized in that, The guide wheel set further comprises a supporting leg, one end of the supporting leg is rotatably arranged at the bottom of the bearing platform, and the other end of the supporting leg is rotatably connected with the guide wheel; The spraying pump is fixed on the supporting leg and arranged close to one end of the bearing platform.

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