Paint spraying device for vehicle maintenance

By coordinating components such as a fixed plate, reciprocating screw, push plate, and force-bearing rod, intermittent quantitative spraying of paint by the nozzle is achieved, solving the problem of the nozzle's inability to spray quantitatively in existing technologies, and improving the efficiency of painting work and the drying speed of the paint.

CN223862140UActive Publication Date: 2026-02-03GUANGZHOU CHEWUYOU CAR MAINTENANCE CO LTD
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Patent Information

Application Number
CN202520008990.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-02-03
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Existing automotive painting equipment cannot achieve intermittent, quantitative spraying of paint from the nozzles, making it impossible to perform painting work in small, multiple batches, which affects the smooth progress of subsequent work.

Method used

By cooperating with components such as a fixed plate, reciprocating screw, push plate, and force rod, and utilizing the spring force in contact with the arc-shaped surface of the force rod, the nozzle can intermittently spray paint in a quantitative manner. Furthermore, the drying speed of the paint is accelerated by cooperating with a rotating shaft, gears, fixed ring, and heating plate.

Benefits of technology

This ensured the smooth completion of the painting work, avoided excessive paint application, improved work efficiency and drying speed, and guaranteed the normal progress of subsequent work.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223862140U_ABST
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Abstract

The utility model discloses a paint spraying device for vehicle maintenance, and relates to the technical field of vehicle maintenance. The paint spraying device comprises a roller assembly and a supporting plate, the supporting plate is fixedly connected to the top of the roller assembly, a paint box is fixedly connected to the top of the supporting plate, a feeding valve is arranged on the side face of the paint box, and a paint spraying device is arranged on the side face of the paint box. Through mutual cooperation of the fixing plate, the reciprocating screw rod, the push plate, the stress rod and other components, when the push plate is stressed to move downwards and is in contact with the stress rod arranged at the bottom of the inner wall of the sliding groove again, the push plate is in contact with the arc-shaped surface of the stress rod again through the elastic force of the spring and is arranged at the bottom of the stress rod; and intermittent quantitative paint spraying of the spray head is achieved, paint spraying work is conducted slightly and repeatedly, it is guaranteed that paint spraying maintenance work is completed smoothly, and it is guaranteed that paint spraying is not too much, and later-period work is not affected.
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Description

Technical Field

[0001] This utility model belongs to the field of vehicle repair technology, and in particular relates to a painting device for vehicle repair. Background Technology

[0002] With the continuous development of society, cars have become an essential means of transportation for people. With the continuous improvement of living standards, almost every family owns its own car. As the number of cars increases, collisions and frictions also occur, causing scratches on the car's surface and damaging its overall appearance.

[0003] According to a public disclosure of an automatic painting device for automobile repair (publication number CN 215141242U), it includes multiple nozzles, a turntable, a first motor, a robotic arm, a paint supply device, and a paint storage tank, the paint storage tank including multiple oil storage tanks.

[0004] However, in the above design, it is difficult to make the push plate contact the arc surface of the force rod with the spring force again by means of the nozzle, turntable and other components. This makes it impossible for the nozzle to spray paint intermittently and quantitatively, so that the painting work cannot be carried out in small amounts and multiple times. Therefore, we propose a painting device for vehicle maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a painting device for vehicle repair. Through the cooperation of components such as a fixed plate, a reciprocating screw, a push plate, and a force-bearing rod, when the push plate moves downwards under force, it contacts the force-bearing rod located at the bottom of the inner wall of the slide groove again. The push plate then utilizes the spring force to contact the arc-shaped surface of the force-bearing rod again and is positioned at the bottom of the force-bearing rod. This enables the nozzle to intermittently and quantitatively spray paint, allowing the painting work to be performed in small, multiple applications, ensuring the smooth completion of the painting repair work, preventing excessive paint spraying that could affect subsequent work, and solving existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a painting device for vehicle repair, comprising a roller assembly and a support plate. The support plate is fixedly connected to the top of the roller assembly, and a paint tank is fixedly connected to the top of the support plate. A feed valve is provided on the side of the paint tank, and a painting device is provided on the side of the paint tank. The painting device includes a fixing plate, which is fixedly connected to the inner wall of the paint tank. A motor is fixedly inserted through the bottom of the fixing plate, and a reciprocating lead screw is fixedly connected to the end of the output shaft of the motor. A reciprocating threaded sleeve is threaded onto the circumferential surface of the reciprocating lead screw.

[0008] Furthermore, a telescopic rod is fixedly connected to the circumferential surface of the reciprocating threaded sleeve, and a spring is fixedly connected to the inner wall of the rectangular groove on the circumferential surface of the reciprocating threaded sleeve. A push plate is fixedly connected to the end of the spring away from the rectangular groove. A baffle plate is fixedly connected to the side of the paint tank, and a sliding groove is formed on the side of the paint tank. A force-bearing spring is fixedly connected to the inner wall of the sliding groove, and a force-bearing rod is fixedly connected to the end of the force-bearing spring away from the sliding groove. A piston is fixedly connected to one end of the force-bearing rod. This design allows the baffle plate to provide assistance even when it obstructs the force-bearing rod.

[0009] Furthermore, the initial state of the spring is set to a relaxed state, the side of the push plate is set to an adaptive arc surface, and the push plate is slidably connected to the inner wall of the rectangular groove. This design is beneficial for the push plate to retract into the inner wall of the rectangular groove when subjected to force.

[0010] Furthermore, a drying device is provided on the side of the paint box. The drying device includes a rack, which is fixedly connected to the circumferential surface of the reciprocating threaded sleeve. A rotating shaft is rotatably connected to the side of the paint box. This design is beneficial because when the reciprocating threaded sleeve makes reciprocating linear motion, it forces the rack to make reciprocating linear motion.

[0011] Furthermore, a gear is fixedly connected to the circumferential surface of the rotating shaft, a fixed ring is fixedly connected to the circumferential surface of the rotating shaft, a fan blade is fixedly connected to the circumferential surface of the fixed ring, and a heating plate is provided on the side of the paint tank. This design is beneficial to drive the fixed ring to rotate when the rotating shaft rotates.

[0012] Furthermore, the gear and rack mesh with each other, and the fan blades are arranged in a plurality of them and are arranged in a circumferential array on the circumferential surface of the fixed ring. This design is beneficial for the gear to rotate under the influence of the rack.

[0013] Furthermore, two baffles are provided and linearly arrayed on the side of the paint tank. The force rod passes through the inner wall of the paint tank. The side cross-section of the force rod is L-shaped and one end is an adaptive arc surface. A nozzle is provided on the top of the paint tank. This design is beneficial for the force rod to push the piston to slide on the inner wall of the paint tank.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, through the cooperation of components such as a fixed plate, a reciprocating screw, a push plate, and a force-bearing rod, achieves intermittent quantitative spraying of paint by the nozzle. When the push plate moves downward under force and contacts the force-bearing rod placed at the bottom of the inner wall of the slide groove again, the push plate again uses the elastic force of the spring to contact the arc-shaped surface of the force-bearing rod and is placed at the bottom of the force-bearing rod. This enables the paint spraying work to be carried out in small amounts and multiple times, ensuring the smooth completion of the paint spraying maintenance work and preventing excessive paint spraying that would affect the subsequent work.

[0016] 2. This utility model, through the cooperation of components such as a rotating shaft, gears, a fixed ring, and a heating plate, enables the fixed ring, which is fixed on the circumference of the rotating shaft, to rotate when the rotating shaft rotates, thereby driving the fan blades to rotate. This allows the fan blades to store air and blow the air heated by the heating plate onto the sprayed paint, thus accelerating the drying speed of the paint and improving the work efficiency and speeding up the work process.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the reciprocating lead screw of this utility model.

[0021] Figure 3 For the present utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle;

[0022] Figure 4 For the present utility model Figure 2 A three-dimensional magnified structural diagram of B.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Roller assembly; 2. Support plate; 3. Paint tank; 4. Feed valve; 5. Spraying device; 51. Fixing plate; 52. Motor; 53. Reciprocating screw; 54. Reciprocating sleeve; 55. Telescopic rod; 56. Rectangular groove; 57. Spring; 58. Push plate; 59. Baffle plate; 510. Slide groove; 511. Force spring; 512. Force rod; 513. Piston; 6. Drying device; 61. Rack; 62. Rotating shaft; 63. Gear; 64. Fixing ring; 65. Fan blade; 66. Heating plate; 7. Spray nozzle. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model is a painting device for vehicle repair, including a roller assembly 1 and a support plate 2. The support plate 2 is fixedly connected to the top of the roller assembly 1, and a paint tank 3 is fixedly connected to the top of the support plate 2. A feed valve 4 is provided on the side of the paint tank 3, and a painting device 5 is provided on the side of the paint tank 3. The painting device 5 includes a fixing plate 51, which is fixedly connected to the inner wall of the paint tank 3. A motor 52 is fixedly inserted through the bottom of the fixing plate 51, and a reciprocating lead screw 53 is fixedly connected to the end of the output shaft of the motor 52. A reciprocating threaded sleeve 54 is threadedly connected to the circumferential surface of the reciprocating lead screw 53.

[0027] A telescopic rod 55 is fixedly connected to the circumferential surface of the reciprocating threaded sleeve 54. A rectangular groove 56 is opened on the circumferential surface of the reciprocating threaded sleeve 54. A spring 57 is fixedly connected to the inner wall of the rectangular groove 56. A push plate 58 is fixedly connected to the end of the spring 57 away from the rectangular groove 56. A baffle plate 59 is fixedly connected to the side of the paint tank 3. A sliding groove 510 is opened on the side of the paint tank 3. A force-bearing spring 511 is fixedly connected to the inner wall of the sliding groove 510. A force-bearing rod 512 is fixedly connected to the end of the force-bearing spring 511 away from the sliding groove 510. A piston 513 is fixedly connected to the end of the force-bearing rod 512. This design is beneficial because the baffle plate 59 can also play an auxiliary role when it obstructs the force-bearing rod 512.

[0028] The initial state of the spring 57 is set to a relaxed state, the side of the push plate 58 is set to an adaptive arc surface, and the push plate 58 is slidably connected to the inner wall of the rectangular groove 56. This design is conducive to the push plate 58 being able to retract into the inner wall of the rectangular groove 56 when subjected to force.

[0029] A drying device 6 is provided on the side of the paint box 3. The drying device 6 includes a rack 61, which is fixedly connected to the circumferential surface of the reciprocating threaded sleeve 54. A rotating shaft 62 is rotatably connected to the side of the paint box 3. This design is beneficial to force the rack 61 to reciprocate linearly when the reciprocating threaded sleeve 54 makes reciprocating linear motion.

[0030] A gear 63 is fixedly connected to the circumferential surface of the rotating shaft 62, a retaining ring 64 is fixedly connected to the circumferential surface of the rotating shaft 62, a fan blade 65 is fixedly connected to the circumferential surface of the retaining ring 64, and a heating plate 66 is provided on the side of the paint tank 3. This design is beneficial to drive the retaining ring 64 to rotate when the rotating shaft 62 rotates.

[0031] Gear 63 meshes with rack 61, and several fan blades 65 are arranged in a circumferential array on the circumferential surface of fixed ring 64. This design is beneficial for gear 63 to rotate under the influence of rack 61.

[0032] Two baffles 59 are provided and are linearly arrayed on the side of the paint tank 3. The force rod 512 passes through the inner wall of the paint tank 3. The side section of the force rod 512 is set in an L shape and one end is set in an adaptive arc surface. The top of the paint tank 3 is provided with a nozzle 7. This design is conducive to the force rod 512 being able to push the piston 513 to slide on the inner wall of the paint tank 3.

[0033] A specific application of this embodiment is as follows: First, when a worker is performing partial paint touch-up on a vehicle, before moving the machine to the location on the vehicle that needs painting via the roller assembly 1, the worker turns on the external power supply, causing the motor 52 to start. This forces the reciprocating screw 53 to rotate clockwise, causing the reciprocating sleeve 54 to be subjected to force and reciprocate linearly on the circumferential surface of the reciprocating screw 53 via the telescopic rod 55. This causes the push plate 58 to be subjected to force and reciprocate linearly. When the push plate 58 moves upward first, it contacts the bottom of the force rod 512, pushing the force rod 512 upward linearly. When the force rod 512 moves upward, it pushes the piston 513, causing the piston 513 to squeeze the inside of the paint tank 3, so that the paint is sprayed through the nozzle 7 onto the area that needs painting. When the force rod 512 moves to the top of the slide 510, the force rod 512 is blocked by the baffle plate 59, allowing the baffle plate 59 to... Together with the inner wall of the slide 510, the push plate 58 acts as a barrier to the force rod 512, preventing it from moving upwards. The push plate 58, under force, contacts the arc-shaped surface of the force rod 512 and retracts into the rectangular groove 56 via the spring 57. The push plate 58 continues to move upwards until it no longer contacts the force rod 512, at which point it resets due to the elastic force of the spring 57. The force rod 512, having lost its thrust, resets due to the elastic force of the force spring 511. When the push plate 58 moves downwards, it contacts the force rod 512 again at the bottom of the inner wall of the slide 510. The push plate 58 then again uses the elastic force of the spring 57 to contact the arc-shaped surface of the force rod 512 and is positioned at the bottom of the force rod 512. This allows the nozzle 7 to intermittently and quantitatively spray paint, enabling the painting work to be done in small, frequent steps, ensuring the smooth completion of the painting maintenance work and preventing excessive paint spraying that could affect subsequent work.

[0034] In the spray painting device 5, since the spray painting work needs to be done in small batches multiple times, and the next spray painting can only be done after the paint has dried, in order to speed up the work progress, when the operator turns on the external power supply, the heating plate 66 is also activated to heat the paint area that needs to be repaired. When the reciprocating thread sleeve 54 is subjected to force and makes reciprocating linear motion, it drives the rack 61 to make reciprocating linear motion, forcing the gear 63 to rotate, which causes the rotating shaft 62 to be subjected to force and rotate. When the rotating shaft 62 rotates, the fixing ring 64 fixed on the circumference of the rotating shaft 62 also rotates, which drives the fan blade 65 to rotate, thereby allowing the fan blade 65 to store air and blow the air heated by the heating plate 66 onto the sprayed paint, which speeds up the drying speed of the paint, improves the work efficiency of the operator, and speeds up the work process.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A painting apparatus for vehicle repair, comprising a roller assembly (1) and a support plate (2), characterized in that: The support plate (2) is fixedly connected to the top of the roller assembly (1), and a paint tank (3) is fixedly connected to the top of the support plate (2). A feed valve (4) is provided on the side of the paint tank (3), and a painting device (5) is provided on the side of the paint tank (3). The painting device (5) includes a fixing plate (51), which is fixedly connected to the inner wall of the paint tank (3). A motor (52) is fixedly inserted through the bottom of the fixing plate (51). A reciprocating screw (53) is fixedly connected to the end of the output shaft of the motor (52). A reciprocating threaded sleeve (54) is threadedly connected to the circumferential surface of the reciprocating screw (53).

2. The painting apparatus for vehicle repair according to claim 1, characterized in that, A telescopic rod (55) is fixedly connected to the circumferential surface of the reciprocating thread sleeve (54). A rectangular groove (56) is opened on the circumferential surface of the reciprocating thread sleeve (54). A spring (57) is fixedly connected to the inner wall of the rectangular groove (56). A push plate (58) is fixedly connected to the end of the spring (57) away from the rectangular groove (56). A baffle plate (59) is fixedly connected to the side of the paint tank (3). A sliding groove (510) is opened on the side of the paint tank (3). A force spring (511) is fixedly connected to the inner wall of the sliding groove (510). A force rod (512) is fixedly connected to the end of the force spring (511) away from the sliding groove (510). A piston (513) is fixedly connected to one end of the force rod (512).

3. A painting apparatus for vehicle repair according to claim 2, characterized in that, The initial state of the spring (57) is set to a relaxed state, the side of the push plate (58) is set to an adaptive arc surface, and the push plate (58) is slidably connected to the inner wall of the rectangular groove (56).

4. A painting apparatus for vehicle repair according to claim 1, characterized in that, The paint tank (3) is provided with a drying device (6) on its side. The drying device (6) includes a rack (61) which is fixedly connected to the circumferential surface of the reciprocating thread sleeve (54). The paint tank (3) is rotatably connected to a rotating shaft (62).

5. A painting apparatus for vehicle repair according to claim 4, characterized in that, A gear (63) is fixedly connected to the circumferential surface of the rotating shaft (62), a fixing ring (64) is fixedly connected to the circumferential surface of the rotating shaft (62), a fan blade (65) is fixedly connected to the circumferential surface of the fixing ring (64), and a heating plate (66) is provided on the side of the paint box (3).

6. A painting apparatus for vehicle repair according to claim 5, characterized in that, The gear (63) meshes with the rack (61), and the fan blades (65) are provided in a plurality of them and are arranged in a circumferential array on the circumferential surface of the fixed ring (64).

7. A painting apparatus for vehicle repair according to claim 2, characterized in that, Two baffles (59) are provided and are arranged linearly on the side of the paint tank (3). The force rod (512) passes through the inner wall of the paint tank (3). The side section of the force rod (512) is L-shaped and one end is an adaptive arc surface. A nozzle (7) is provided on the top of the paint tank (3).

Citation Information

Patent Citations

  • Automatic paint spraying device for automobile maintenance

    CN215141242U