A rolling brush device for construction

Abstract

This invention discloses a roller brush device for construction, including a roller brush body and a handle, and a connecting bend for connecting the roller brush body and the handle. The roller brush body is rotatably connected to a straight section of the connecting bend. The connecting bend has a liquid inlet channel, and the straight section of the connecting bend has multiple sets of connecting holes leading to the outside of the roller brush body. The handle has a storage cylinder for storing paint and a drive mechanism for extruding paint, and the storage cylinder is connected to the liquid inlet channel. This invention uses the drive mechanism to drive the paint into the liquid inlet channel in the connecting bend. Under pressure, the paint enters the roller brush body through the connecting holes. During the rotation of the roller brush body, the paint inside flows to the outside for brushing, reducing the proportion of ineffective time during the device's operation and improving the device's operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a roller brush device for building construction. Background Technology

[0002] A roller brush device is a tool used for large-area paint application during decoration and renovation, and it is widely used in the construction industry. In existing roller brush devices, the brush bristles pick up paint onto its rotating end, and after the paint is picked up, the bristles roll to contact the substrate, thus applying the paint to the substrate surface. However, because the device needs to repeatedly pick up paint during operation, the proportion of ineffective time in the operation process increases, greatly reducing the device's operating efficiency and thus affecting its practicality.

[0003] Chinese utility model patent CN216406054U, published on April 29, 2022, discloses a hand-held roller brush for construction with easily replaceable brush heads. The brush includes a gripping rod and a brush head body. A mounting plate is fixedly installed on the top of the gripping rod, and the top of the mounting plate has two sets of sliding grooves. A slider is slidably installed inside the sliding grooves, and a support spring is fixedly installed on the outer surface of the mounting plate. A fixing rod is fixedly installed on the slider. However, this roller brush requires repeated dipping in paint during operation, reducing the device's operating efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model proposes a roller brush device for building construction, which solves the problem that in the prior art, the roller brush needs to be repeatedly dipped in paint during operation, thereby reducing the operating efficiency of the device.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A construction roller brush device includes a roller brush body and a handle, and a connecting bend for connecting the roller brush body and the handle. The roller brush body is rotatably connected to a straight section of the connecting bend. The connecting bend has a liquid inlet channel, and the straight section of the connecting bend has multiple sets of connecting holes leading to the outside of the roller brush body. The handle has a storage cylinder for storing paint and a drive mechanism for extruding paint, and the storage cylinder is connected to the liquid inlet channel.

[0006] Furthermore, the end of the connecting bend is connected to the storage cylinder via a locking cap.

[0007] Furthermore, the drive mechanism includes a drive plug that is slidably disposed inside the storage cylinder, and an extension tube that is coaxially connected to and communicates with the storage cylinder, with an air supply component connected to the end of the extension tube away from the storage cylinder.

[0008] Furthermore, the air supply assembly includes an air supply cylinder, the outer surface of which is connected to an air inlet check valve, the bottom of which is connected to a sealing tube, the inner wall of which is slidably connected to an air supply piston, and the bottom of which is slidably inserted with a feed rod screwed to the air supply piston.

[0009] Furthermore, a push-pull end cap is screwed onto the bottom end of the feed rod, and the inner wall of the push-pull end cap is provided with an internal thread that is screwed onto the outer surface of the sealing tube.

[0010] Furthermore, the bottom end of the storage cylinder is connected to a pressure-holding one-way valve, and the input end of the pressure-holding one-way valve is connected to an extension pipe; an observation slot is opened on the outer surface of the storage cylinder, and a visual observation plate is installed inside the observation slot.

[0011] Furthermore, the outer surface of the extension tube is provided with two sets of gripping sleeves, and the outer surface of each set of gripping sleeves is provided with multiple sets of anti-slip grooves.

[0012] Furthermore, the roller brush body includes a drive roller and a bristle sleeve fixed to the outside of the drive roller. Two sets of rotary bearings are interference-fitted onto the inner wall of the drive roller, and the two sets of rotary bearings are sleeved on the straight section of the connecting bend.

[0013] Furthermore, the drive roller is provided with two sets of sealing components inside; each set of sealing components includes a sealing ring plate, and a T-shaped collar is rotatably inserted into the inner wall of each set of sealing ring plates. The inner wall of each set of T-shaped collars is interference-fitted with the outer surface of the straight section of the connecting bend pipe, and a liquid suction ring is provided on the outer side of each set of sealing ring plates.

[0014] Furthermore, a support frame is provided on the rear side of the bristle sleeve, and the outer surface of the drive roller is in contact with the inner wall of the support frame.

[0015] The beneficial effects of this utility model are: 1. This construction roller brush device, through an air supply assembly, allows external air to enter the storage cylinder via an extension pipe and a pressure-holding one-way valve. The air in the storage cylinder drives the paint into the inlet bend through a drive plug. Under pressure, the paint in the inlet bend enters the drive roller through a connecting hole, which then moves the brush sleeve on the base layer. The brush sleeve drives the drive roller to rotate along the rotary bearing. During the rotation of the drive roller, the paint inside it enters the brush sleeve through the connecting hole, reducing the proportion of ineffective time during the device's operation and improving the device's operating efficiency.

[0016] 2. This construction roller brush device, through its rear-mounted air supply assembly, ensures gravity balance for the operator while holding the extension pipe, effectively improving the stability of the device during operation. Simultaneously, during air supply, the feed rod drives the air supply piston along the air supply cylinder. In this process, the air supply piston draws air through the one-way valve into the air supply cylinder, or the air supply piston draws air from the air supply cylinder into the extension pipe, effectively improving the convenience of the air supply process and enhancing the device's applicability.

[0017] 3. This construction roller brush device, through a sealing component, enables the drive roller to rotate along a T-shaped collar during operation. The sealing ring plate, in conjunction with the T-shaped collar, forms a sealing structure that confines the paint within the drive roller. Paint that passes through the sealing structure is absorbed by the porous material properties of the suction ring, greatly reducing the probability of paint leakage within the device and effectively improving the device's sealing performance, thereby enhancing its practicality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a cross-sectional view of the structure of this utility model.

[0020] In the diagram: 1. Brush sleeve; 2. Drive roller; 3. Rotary bearing; 4. Liquid inlet bend; 5. Connecting hole; 6. Locking cap; 7. Storage cylinder; 8. Drive plug; 9. Pressure holding check valve; 10. Extension tube; 11. Air supply assembly; 12. Air supply cylinder; 13. Air inlet check valve; 14. Sealing tube; 15. Feed rod; 16. Air supply piston; 17. Sealing assembly; 18. Sealing ring plate; 19. T-shaped collar; 20. Liquid suction ring; 21. Visual observation plate; 22. Gripping sleeve; 23. Push-pull end cap; 24. Support frame. 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] like Figure 1 As shown in Embodiment 1 of this utility model, a construction roller brush device includes a roller brush body and a handle, a connecting bend for connecting the roller brush body and the handle. The roller brush body includes a drive roller 2 and a bristle sleeve 1 fixed to the outside of the drive roller 2. The drive roller 2 passes through the bristle sleeve 1. Figure 3 As shown, two sets of rotary bearings 3 are interference-fitted onto the inner wall of the drive roller 2. A straight section of a connecting bend is interference-fitted between the rotating ends of the two sets of rotary bearings 3. The connecting bend has a liquid inlet channel 4. Multiple sets of connecting holes 5 are provided on the drive roller 2 and the straight section of the connecting bend. A locking cap 6 is connected to the input end of the connecting bend near the liquid inlet channel 4. A storage cylinder 7 is screwed onto the inner wall of the locking cap 6. The storage cylinder 7 is connected to a drive mechanism for extruding coating material.

[0023] Specifically, such as Figure 2 and Figure 3 As shown, the drive mechanism includes a drive plug 8 slidably disposed on the inner wall of the storage cylinder 7. A pressure-holding check valve 9 is connected to the bottom end of the storage cylinder 7. An extension pipe 10 is connected to the input end of the pressure-holding check valve 9, and an air supply assembly 11 is connected to the input end of the extension pipe 10. Through the air supply assembly 11, external air enters the storage cylinder 7 through the extension pipe 10 and the pressure-holding check valve 9. The air in the storage cylinder 7 drives the paint through the drive plug 8 into the liquid inlet channel 4 connected to the bend pipe. Under pressure, the paint in the liquid inlet channel 4 enters the drive roller 2 through the connecting hole 5, which then drives the brush sleeve 1 to move on the base layer. The brush sleeve 1 drives the drive roller 2 to rotate along the rotary bearing 3. During the rotation of the drive roller 2, the paint inside it enters the brush sleeve 1 through the connecting hole 5, reducing the proportion of ineffective time during the device's operation and improving the device's operating efficiency.

[0024] Example 2 differs from Example 1 in that, as Figure 2As shown, the air supply assembly 11 includes an air supply cylinder 12 connected to the extension pipe 10, with an inlet check valve 13 connected to the outer surface of the air supply cylinder 12. A sealing pipe 14 is connected to the bottom of the air supply cylinder 12, and an air supply piston 16 is slidably connected to the inner wall of the sealing pipe 14. A feed rod 15 is slidably inserted into the bottom of the air supply cylinder 12, and the top end of the feed rod 15 is screwed onto the air supply piston 16. The rear-mounted air supply assembly 11 ensures gravity balance for the operator while holding the extension pipe 10, effectively improving the stability of the device during operation. Simultaneously, during air supply operations, the feed rod 15 drives the air supply piston 16 to move along the air supply cylinder 12. During this process, the air supply piston 16 drives air through the inlet check valve 13 into the air supply cylinder 12, or the air supply piston 16 drives air from the air supply cylinder 12 into the extension pipe 10, effectively improving the convenience of air supply operations and enhancing the applicability of the device.

[0025] Example 3 differs from Example 1 in that, as Figure 3 As shown, the drive roller 2 has two sets of sealing components 17 inside. In this embodiment, each set of sealing components 17 includes a sealing ring plate 18, and a T-shaped collar 19 is rotatably inserted into the inner wall of each sealing ring plate 18. The inner wall of each T-shaped collar 19 is interference-fitted with the outer surface of the straight section of the connecting bend pipe, and a liquid-absorbing ring 20 is provided on the outer side of each sealing ring plate 18. Through the sealing components 17, the drive roller 2 drives the sealing ring plate 18 to rotate along the T-shaped collar 19 during the operation of the device. The sealing ring plate 18 forms a sealing structure with the cooperation of the T-shaped collar 19. The sealing structure constrains the coating inside the drive roller 2. The coating that passes through the sealing structure is absorbed by the porous material characteristics of the liquid-absorbing ring 20, which greatly reduces the probability of coating leakage in the device, effectively improves the sealing performance of the device, and thus enhances the practicality of the device.

[0026] Example 4 differs from Example 1 in that, as Figure 2 As shown, in order to improve the convenience of determining the amount of paint in the storage cylinder 7, an observation slot is provided on the outer surface of the storage cylinder 7. A visual observation plate 21 is provided inside the observation slot to provide an observation port during the process of determining the amount of paint in the storage cylinder 7, thereby improving the convenience of determining the amount of paint in the storage cylinder 7.

[0027] Example 5 differs from Example 1 in that, as Figure 2 As shown, in order to improve the stability of the device during operation, two sets of gripping sleeves 22 are provided on the outer surface of the extension tube 10 to enhance the friction between the device and the operator. Each set of gripping sleeves 22 has multiple anti-slip grooves on its outer surface to enhance its friction coefficient, thereby improving the stability of the device during operation.

[0028] Example 6 differs from Example 2 in that, as Figure 2 As shown, in order to reduce the probability of uncontrollable movement of the feed rod 15, a push-pull end cap 23 is screwed onto the bottom end of the feed rod 15. The inner wall of the push-pull end cap 23 is provided with an internal thread that is screwed onto the outer surface of the sealing tube 14. By screwing the push-pull end cap 23 onto the sealing tube 14, the feed rod 15 is fixed in the standby state, thereby reducing the probability of uncontrollable movement of the feed rod 15.

[0029] Example 7 differs from Example 1 in that, as Figure 3 As shown, in order to provide convenience during the temporary placement of the device, a support frame 24 is provided on the rear side of the brush sleeve 1 to separate the device from the outside during the temporary placement. The outer surface of the drive roller 2 is in contact with the inner wall of the support frame 24, thereby providing convenience during the temporary placement of the device.

[0030] In use, the prepared paint is first injected into the storage cylinder 7. After the paint is injected, the output end of the storage cylinder 7 is sealed by screwing on the locking cap 6. Then, the feed rod 15 drives the air supply piston 16 to move outward along the air supply cylinder 12. During this process, the air supply piston 16 creates a negative pressure in the air supply cylinder 12. The negative pressure drives external air into the air supply cylinder 12 through the air inlet check valve 13. After the bottom of the air supply piston 16 contacts the inner wall of the air supply cylinder 12, it is driven to move in the opposite direction by the feed rod 15. During this process, the air supply piston 16 drives the air in the air supply cylinder 12 into the extension tube 10. Under pressure, the air in the extension tube 10 enters the storage cylinder 7 through the pressure holding check valve 9. The air in the storage cylinder 7 drives the drive plug 8 to move along its inner wall. During this process, the driving plug 8 drives the coating material in the storage cylinder 7 into the inlet bend 4. Under pressure, the coating material in the inlet bend 4 enters the driving roller 2 through the connecting hole 5, and then drives the brush sleeve 1 to move on the substrate. The brush sleeve 1 drives the driving roller 2 to rotate along the rotating bearing 3. During the rotation of the driving roller 2, the coating material inside it enters the brush sleeve 1 through the connecting hole 5. At the same time, the coating material on the brush sleeve 1 is rolled onto the substrate surface. During this process, the driving roller 2 drives the sealing ring plate 18 to rotate along the T-shaped collar 19. The sealing ring plate 18 forms a sealing structure with the cooperation of the T-shaped collar 19. The sealing structure constrains the coating material inside the driving roller 2. The coating material that passes through the sealing structure is absorbed by the porous material properties of the liquid absorption ring 20 itself.

[0031] In summary, this construction brush device, through the air supply component 11, allows external air to enter the storage cylinder 7 via the extension pipe 10 and the pressure-holding one-way valve 9. The air in the storage cylinder 7 then drives the paint into the liquid inlet bend 4 via the drive plug 8. Under pressure, the paint in the liquid inlet bend 4 enters the drive roller 2 through the connecting hole 5, which in turn drives the brush sleeve 1 to move on the base layer. The brush sleeve 1 drives the drive roller 2 to rotate along the rotary bearing 3. During the rotation of the drive roller 2, the paint inside it enters the brush sleeve 1 through the connecting hole 5. This reduces the proportion of ineffective time during the operation of the device and improves the operating efficiency of the device.

[0032] The construction roller brush device, through the rear-mounted air supply assembly 11, ensures gravity balance for the operator while holding the extension pipe 10, effectively improving the stability of the device during operation. Simultaneously, during air supply, the feed rod 15 drives the air supply piston 16 to move along the air supply cylinder 12. In this process, the air supply piston 16 drives air through the air inlet check valve 13 into the air supply cylinder 12, or the air supply piston 16 drives air from the air supply cylinder 12 into the extension pipe 10, effectively improving the convenience of the device's air supply operation and thus enhancing its applicability.

[0033] This construction roller brush device, through the sealing component 17, causes the drive roller 2 to rotate along the T-shaped collar 19 during operation. The sealing ring plate 18, in cooperation with the T-shaped collar 19, forms a sealing structure that confines the paint inside the drive roller 2. Paint that passes through the sealing structure is absorbed by the porous material properties of the liquid absorption ring 20, greatly reducing the probability of paint leakage inside the device, effectively improving the sealing performance of the device, and thus enhancing the practicality of the device.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features thereof, within the spirit and principles of the present invention, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A rolling brush device for construction work, comprising a rolling brush body and a handle, characterized in that: The connecting elbow pipe is connected with the storage cylinder (7) through a locking cap (6).

2. The rolling brush apparatus for use in building construction according to claim 1, characterized by: The driving mechanism comprises a driving plug (8) slidingly arranged in the storage cylinder (7), an extension pipe (10) coaxially connected with the storage cylinder (7) and in communication with the storage cylinder (7), and a gas supply assembly (11) communicated with one end of the extension pipe (10) away from the storage cylinder (7).

3. A rolling brush apparatus for use in building construction according to claim 1 or 2, characterized in that: The gas supply assembly (11) comprises a gas supply cylinder (12), an air inlet check valve (13) communicated with the outer surface of the gas supply cylinder (12), a sealing pipe (14) communicated with the bottom of the gas supply cylinder (12), a gas supply piston (16) slidingly connected to the inner wall of the sealing pipe (14), and a feeding rod (15) screw-connected with the gas supply piston (16) and slidingly inserted into the bottom of the sealing pipe (14).

4. The rolling brush apparatus for use in construction work according to claim 3, characterized by: The bottom end of the feeding rod (15) is screw-connected with a push-pull end cap (23), and the inner wall of the push-pull end cap (23) is screw-connected with an internal thread on the outer surface of the sealing pipe (14).

5. The rolling brush apparatus for use in construction work according to claim 4, characterized by: The bottom end of the storage cylinder (7) is communicated with a pressure maintaining check valve (9), the input end of the pressure maintaining check valve (9) is communicated with the extension pipe (10), and the outer surface of the storage cylinder (7) is provided with an observation slot, and the inside of the observation slot is provided with a visual observation plate (21).

6. A rolling brush apparatus for use in building construction according to claim 4 or 5, characterised in that: The outer surface of the extension pipe (10) is provided with two groups of gripping sleeves (22), and the outer surface of each group of the gripping sleeves (22) is provided with a plurality of anti-skid grooves.

7. A rolling brush apparatus for use in building construction according to claim 4 or 5, characterised in that: The brush body comprises a driving roller (2) and a bristle sleeve (1) fixed to the outer side of the driving roller (2), the inner wall of the driving roller (2) is provided with two groups of rotating bearings (3) in interference fit, and the two groups of rotating bearings (3) are sleeved on the flat section of the connecting elbow pipe.

8. A rolling brush apparatus for use in building construction according to claim 1 or 2 or 4 or 5 wherein: The inside of the driving roller (2) is provided with two groups of sealing assemblies (17), each group of the sealing assemblies (17) comprises a sealing ring plate (18), the inner wall of each group of the sealing ring plates (18) is rotatably inserted with a T-shaped sleeve ring (19), the inner wall of each group of the T-shaped sleeve rings (19) is interference-fitted with the outer surface of the flat section of the connecting elbow pipe, and the outer side of each group of the sealing ring plates (18) is provided with a liquid suction ring (20).

9. The rolling brush apparatus of claim 8, wherein: The rear side of the bristle sleeve (1) is provided with a support frame (24), and the outer surface of the driving roller (2) is attached to the inner wall of the support frame (24).

10. The rolling brush apparatus for use in construction according to claim 9, wherein: ​

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