An even spray paint device
By introducing a rotating metal cap and quick-release buckle device into the painting equipment, the problems of cumbersome replacement of the paint spraying tube and the inability to adjust the spraying range are solved. This enables quick disassembly of the paint spraying tube and flexible adjustment of the spraying range, improving the equipment's maintenance convenience and production efficiency.
Patent Information
- Application Number
- CN202521741121.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-15
AI Technical Summary
Existing painting equipment operates within a closed enclosure, making maintenance inconvenient. Replacing the paint spray pipes is cumbersome, and the spraying range cannot be flexibly adjusted, limiting the equipment's versatility and production efficiency.
The design incorporates a rotating metal cover for easy maintenance, a quick-release snap-on device for replacing the paint spray tube, and adjustable spraying range via snap-fit posts and springs. Combined with a motor drive and hot air blower, it enhances spraying efficiency.
It enables quick disassembly and maintenance of the paint spraying pipe, flexible adjustment of the spraying range, and improves the versatility and production efficiency of the spraying device.
Smart Images

Figure CN224672979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray painting equipment technology, and in particular to a spray painting equipment for uniform spraying. Background Technology
[0002] A spray painting device is a machine used to uniformly spray coatings (paints, varnishes, preservatives, etc.) onto the surface of an object in an atomized form. It replaces traditional manual brushing with mechanical or automated methods and is widely used in industrial manufacturing, building decoration, automotive repair, and other fields to improve efficiency, uniformity, and coating quality.
[0003] Existing painting equipment primarily performs spraying operations within a closed enclosure, achieving uniform coating coverage through electrostatic spraying technology. The spray nozzles require frequent cleaning and maintenance. Furthermore, the existing equipment, often operating within an enclosure, is inconvenient for repairs, impacting production efficiency. Additionally, existing spray nozzles are typically connected by threads, making replacement cumbersome and limiting the flexibility of adjusting the spraying range to accommodate workpieces of different sizes, thus restricting the versatility of the painting equipment.
[0004] Therefore, those skilled in the art have provided a paint spraying device for uniform spraying to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a uniform spraying device. It features a rotating metal cover for easy maintenance, a quick-release buckle for easy replacement of the spray nozzle, and a locking post and a first spring for easy adjustment of the spraying range.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A uniform spraying device includes a spray gun and a rigid tube. The rigid tube has two first rectangular snap-fit grooves on its side and an annular snap-fit groove on its lower surface. A spray gun is snapped into the annular snap-fit groove of the rigid tube. The spray gun has two second rectangular snap-fit grooves at its upper end. A fixing frame is fixedly installed on the upper end of the first rectangular snap-fit groove of the rigid tube. A snap-fit bracket is slidably installed in the cylindrical hole of the fixing frame. A second spring is fixedly installed at the lower end of the snap-fit bracket and the lower surface of the fixing frame.
[0008] A first spring is fixedly installed inside the hollow cylindrical body on the surface of the paint spray tube. A snap-fit post is fixedly installed at the lower end of the first spring. The snap-fit post is snapped into the cylindrical hole at the lower end of the paint spray tube. A spray head is threaded into the cylindrical hole at the lower end of the paint spray tube.
[0009] Furthermore, a metal cover is hinged to the upper end of one side of the paint spray box, and a paint bucket and a first motor are fixedly mounted on one side surface of the metal cover. A bidirectional lead screw is fixedly mounted at the output end of the first motor, and two sliders are threaded onto the surface of the bidirectional lead screw.
[0010] Furthermore, the lower ends of the two sliders are respectively connected to two rigid tubes, and the upper ends of the two rigid tubes are fixedly provided with flexible tubes. The other ends of the two flexible tubes pass through metal caps and are fixedly provided on both sides of the paint bucket.
[0011] Furthermore, clamping mechanisms are provided in the hollow cylindrical bodies on both sides of the paint spray box, and each clamping mechanism includes a second motor, an electric telescopic rod, and a snap-fit plate.
[0012] Furthermore, a hot air blower is provided on the lower inner surface of the paint spraying box, the hot air blower including an electric fan and an electric heating wire.
[0013] Furthermore, the two sliders move within the rectangular through-hole of the metal cover.
[0014] Furthermore, a metal door is hinged to the rear surface of the paint spray box.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model proposes a uniform spraying device. When replacing the spray pipe, rotating the metal cover exposes the internal structure of the spray box, facilitating cleaning and maintenance of the internal components. Inserting two fingers into the annular column of the clamping bracket and spreading them outwards causes the clamping bracket to slide within the cylindrical hole of the fixing bracket and compress the second spring, disengaging the clamping bracket from the clamping groove of the rigid pipe and the spray pipe. Then, pulling the spray pipe away from the rigid pipe completes the disassembly.
[0017] 2. This utility model proposes a uniform spraying device. When adjusting the spraying range, the coverage area can be changed by increasing or decreasing the number of spray heads. Rotating the spray head disengages it from the cylindrical hole of the spray tube. The first spring pushes the locking pin to move and close the cylindrical hole on the lower surface of the spray tube, preventing paint leakage. Adjusting the number of spray heads can adapt to the needs of workpieces of different sizes. At the same time, when a spray head becomes clogged, it can be quickly replaced. Attached Figure Description
[0018] Figure 1 This is an isometric schematic diagram of the present invention;
[0019] Figure 2 This is a partial cross-sectional view of the paint spray box of this utility model;
[0020] Figure 3 This is a front sectional view of the metal cap of this utility model;
[0021] Figure 4 This is a cross-sectional view of the paint spray tube of this utility model;
[0022] Figure 5 This is a side sectional view of the rigid tube of this utility model;
[0023] Figure 6 This is a side sectional view of the hot air blower of this utility model.
[0024] Legend:
[0025] 1. Spray booth; 2. Metal door; 3. Metal cover; 4. Clamping mechanism; 5. First spring; 6. Snap-fit post; 7. Spray nozzle; 8. Hot air blower; 9. Paint bucket; 10. Snap-fit bracket; 11. Two-way lead screw; 12. Slider; 13. Rigid tube; 14. Spray tube; 15. First motor; 16. Flexible hose; 17. Fixing bracket; 18. Second spring. Detailed Implementation
[0026] 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.
[0027] Reference Figure 4 , Figure 5 One embodiment provided by this utility model:
[0028] A uniform spraying device includes a spray box 1 and a rigid tube 13. Two first rectangular snap-fit grooves are opened on the side of the rigid tube 13, and an annular snap-fit groove is opened on the lower surface of the rigid tube 13. A spray tube 14 is snapped into the annular snap-fit groove of the rigid tube 13. Two second rectangular snap-fit grooves are opened at the upper end of the spray tube 14. A fixing frame 17 is fixedly installed on the upper end of the first rectangular snap-fit groove of the rigid tube 13. A snap-fit bracket 10 is slidably installed in the cylindrical hole of the fixing frame 17. A second spring 18 is fixedly installed at the lower end of the snap-fit bracket 10 and the lower surface of the fixing frame 17.
[0029] A first spring 5 is fixedly installed inside the hollow cylinder on the surface of the paint spray tube 14. A snap-fit post 6 is fixedly installed at the lower end of the first spring 5. The snap-fit post 6 is snapped into the cylindrical hole at the lower end of the paint spray tube 14. A spray head 7 is threaded into the cylindrical hole at the lower end of the paint spray tube 14.
[0030] Specifically, when replacing the paint spray tube 14, place two fingers into the annular columns of the two snap-fit brackets 10 respectively, and spread the two snap-fit brackets 10 to both sides. The snap-fit brackets 10 slide in the cylindrical holes of the fixing bracket 17. The second spring 18 is compressed, and the other end of the snap-fit bracket 10 disengages from the first rectangular snap-fit groove of the rigid tube 13 and the second rectangular snap-fit groove of the paint spray tube 14. Pull the paint spray tube 14, and the paint spray tube 14 disengages from the annular snap-fit groove of the rigid tube 13, completing the disassembly of the paint spray tube 14 and achieving quick disassembly.
[0031] When adjusting the spraying range, the spraying range is changed by changing the number of nozzles 7. The nozzles 7 around the spray pipe 14 are rotated, and the nozzles 7 disengage from the cylindrical holes on the lower surface of the spray pipe 14. The lower half of the cylindrical holes is threaded. At the same time as the spray pipe 14 disengages from the cylindrical holes, the first spring 5 extends and pushes the locking post 6 to move. When the spray pipe 14 is completely disengaged from the cylindrical holes, the locking post 6 moves into the cylindrical holes and closes them. The spraying range is adjusted by removing the number of nozzles 7 to accommodate workpieces of different sizes.
[0032] Reference Figures 1-6 A metal cover 3 is hinged to the upper side of one side of the spray booth 1. A paint bucket 9 and a first motor 15 are fixedly mounted on one side surface of the metal cover 3. A bidirectional lead screw 11 is fixedly mounted at the output end of the first motor 15. Two sliders 12 are threaded onto the surface of the bidirectional lead screw 11. The lower ends of the two sliders 12 are respectively connected to two rigid pipes 13. Flexible hoses 16 are fixedly mounted at the upper ends of the two rigid pipes 13. The other ends of the two flexible hoses 16 pass through the metal cover 3 and are fixedly mounted on both sides of the paint bucket 9. A clamping mechanism 4 is provided in the hollow cylinders on both sides of the spray booth 1. Both clamping mechanisms 4 include a second motor, an electric telescopic rod, and a snap-fit plate. A hot air blower 8 is provided on the lower internal surface of the spray booth 1. The hot air blower 8 includes an electric fan and an electric heating wire. The two sliders 12 move within the rectangular through hole of the metal cover 3. A metal door 2 is hinged to the rear surface of the spray booth 1.
[0033] Specifically, during painting, the workpiece is placed on the clamping mechanism 4. A first electric telescopic rod is fixedly mounted on the output end of the second motor of the clamping mechanism 4. A clamping frame is fixedly mounted on the surface of the first electric telescopic rod. Second electric telescopic rods are fixedly mounted on both ends of the clamping frame. Fixing plates are fixedly mounted on the surfaces of both second electric telescopic rods. The first electric telescopic rod extends, fixing both ends of the workpiece between the two clamping frames. Then, the second electric telescopic rods extend, pushing the fixing plates to secure the workpiece. After securing, the first motor 15 is started, driving the bidirectional lead screw 1. 1. Rotation of the double-acting screw 11 drives two sliders 12 to move back and forth on the surface of the double-acting screw 11. A water pump is installed inside the paint tank 9 to transfer the paint from the paint tank 9 to the hose 16, then from the hose 16 to the rigid pipe 13, and then from the rigid pipe 13 to the spray pipe 14. Finally, the paint is sprayed out from the nozzle 7 in the cylindrical hole of the spray pipe 14 to evenly spray the workpiece. After one side is painted, the second motor drives the workpiece to rotate to continue painting the workpiece. The hot air blower 8 on the lower surface of the spray box 1 is started to dry the paint on the surface of the workpiece, which speeds up the work efficiency.
[0034] Working principle: When replacing the paint spray tube 14, insert two fingers into the annular posts of the two snap-fit brackets 10 respectively, and spread the snap-fit brackets 10 apart to both sides; the snap-fit brackets 10 slide in the cylindrical holes of the fixing bracket 17, while compressing the second spring 18, causing the other end of the snap-fit bracket 10 to disengage from the first rectangular snap-fit groove of the rigid tube 13 and the second rectangular snap-fit groove of the paint spray tube 14. Then, pull the paint spray tube 14 outward to disengage it from the annular snap-fit groove of the rigid tube 13, completing the quick disassembly.
[0035] When adjusting the spraying range, the spraying coverage area is changed by increasing or decreasing the number of spray nozzles 7. The spray nozzles 7 on the periphery of the paint spray tube 14 are rotated to disengage from the cylindrical holes on the lower surface of the tube 14. The lower half of the cylindrical hole is threaded; when the spray nozzle 7 disengages, the first spring 5 extends and pushes the locking post 6 to move. After the spray nozzle 7 is completely disengaged, the locking post 6 automatically moves into the cylindrical hole, sealing the opening and preventing paint leakage. By adjusting the number of spray nozzles 7, the spraying requirements of workpieces of different sizes can be accommodated.
[0036] During the spraying operation, the workpiece is first clamped onto the clamping mechanism 4. The output end of the second motor of the clamping mechanism 4 is connected to the first electric telescopic rod, and a clamping frame is fixed on its surface. Each end of the clamping frame is equipped with a second electric telescopic rod, and a fixing plate is installed at the end. The first electric telescopic rod extends, positioning the two ends of the workpiece between the two clamping frames. Then, the second electric telescopic rod pushes the fixing plate to clamp the workpiece. After fixing, the first motor 15 is started, driving the bidirectional lead screw 11 to rotate, which in turn drives the two sliders 12 to move back and forth. Paint is transported from the paint tank 9 through the hose 16 to the rigid pipe 13, then flows into the spray pipe 14, and finally is evenly sprayed through the nozzle 7. After single-sided spraying is completed, the second motor drives the workpiece to rotate, continuing to spray other surfaces. The hot air blower 8 at the bottom of the spray box 1 quickly dries the workpiece, improving spraying efficiency.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A uniform spraying device, comprising a spray booth (1) and a rigid pipe (13), characterized in that: The rigid tube (13) has two first rectangular snap-fit grooves on its side and an annular snap-fit groove on its lower surface. A paint spray tube (14) is snapped into the annular snap-fit groove of the rigid tube (13). Two second rectangular snap-fit grooves are opened at the upper end of the paint spray tube (14). A fixing frame (17) is fixedly installed on the upper end of the first rectangular snap-fit groove of the rigid tube (13). A snap-fit bracket (10) is slidably installed in the cylindrical hole of the fixing frame (17). A second spring (18) is fixedly installed at the lower end of the snap-fit bracket (10) and the lower surface of the fixing frame (17). A first spring (5) is fixedly installed inside the hollow cylinder on the surface of the paint spray tube (14). A snap-fit post (6) is fixedly installed at the lower end of the first spring (5). The snap-fit post (6) is snapped into the cylindrical hole at the lower end of the paint spray tube (14). A spray nozzle (7) is threaded into the cylindrical hole at the lower end of the paint spray tube (14).
2. The uniform spraying device according to claim 1, characterized in that: A metal cover (3) is hinged to the upper end of one side of the paint spray box (1). A paint bucket (9) and a first motor (15) are fixedly installed on one side surface of the metal cover (3). A bidirectional lead screw (11) is fixedly installed at the output end of the first motor (15). Two sliders (12) are threaded onto the surface of the bidirectional lead screw (11).
3. The uniform spraying device according to claim 2, characterized in that: The lower ends of the two sliders (12) are respectively connected to two rigid tubes (13), and the upper ends of the two rigid tubes (13) are fixedly provided with flexible tubes (16). The other ends of the two flexible tubes (16) pass through the metal caps (3) and are fixedly provided on both sides of the paint bucket (9).
4. The uniform spraying device according to claim 1, characterized in that: The spray paint box (1) is equipped with clamping mechanisms (4) in both hollow cylindrical bodies on both sides. Each clamping mechanism (4) includes a second motor, an electric telescopic rod, and a snap-fit plate.
5. The uniform spraying device according to claim 1, characterized in that: A hot air blower (8) is provided on the lower inner surface of the paint spray box (1), and the hot air blower (8) includes an electric fan and an electric heating wire.
6. The uniform spraying device according to claim 2, characterized in that: The two sliders (12) move within the rectangular through hole of the metal cover (3).
7. The uniform spraying device according to claim 1, characterized in that: The paint spray box (1) is hinged to a metal door (2) on its rear surface.