Paint spraying device for automobile maintenance

Abstract

The utility model discloses a paint spraying device for automobile maintenance, which comprises a paint gun main body, the output end of the paint gun main body is fixedly communicated with an adjusting cover, the other end of the adjusting cover is fixedly communicated with a spray head, and the spray head and the output end of the paint gun main body are positioned at the same position. A push block is pushed to slide in an avoiding through hole, so that a conversion column rotates along with the push block, a communication through hole and a cleaning through hole are subjected to transposition, the cleaning through hole is communicated with a spray head, and then a worker drives a rotating shaft to rotate through a cross screwdriver; the adjusting gear rotates, drives the driven rack to move in the positioning plate and pushes the movable plate to slide in the cleaning through hole, so that the cleaning needle can be inserted into the spray head and push out the solid paint, the solid paint blocked in the spray head is rapidly cleaned, the spray head does not need to be disassembled, the structure is simple, operation is convenient, and the practicability is high. The service life of the nozzle is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile maintenance, in particular to a paint spraying device for automobile maintenance. BACKGROUND

[0002] After the surface of the automobile is depressed and the paint layer is peeled off due to impact or scratching, etc., the automobile needs to be repaired in the automobile repair shop, and the paint layer needs to be repaired by the paint spraying device after the depressed position is repaired. The commonly used paint spraying device is a paint spraying gun. The paint spraying gun atomizes the paint into fine paint droplets by compressed air, and then sprays the paint droplets onto the surface of the coated object under the driving of the air flow. This process makes the coating film more delicate, smooth and uniform.

[0003] In the prior art, a paint spraying device for automobile maintenance is disclosed in Chinese patent CN220941326U. The paint spraying device includes a spray gun body, a feed pipe connected to the top of the spray gun body, a paint spraying bottle sleeved outside the feed pipe, a plurality of feed grooves formed in the upper end of the feed pipe, a thickened bottle mouth connected to the top of the paint spraying bottle, a storage groove formed in the inside of the thickened bottle mouth, a spring connected to the bottom of the storage groove, and a flow limiting assembly connected to one end of the spring.

[0004] Most of the current paint spraying guns are prone to leave paint in the nozzle after use. The left paint is easy to solidify and adhere to the inside of the spray hole. The accumulated paint in the nozzle is easy to cause clogging during long-term use. In this case, the nozzle needs to be removed and dredged before being reinstalled. Frequent disassembly and installation can easily cause the sealing between the nozzle and the paint spraying gun to deteriorate, affecting the paint spraying effect during subsequent use and reducing the service life of the nozzle. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a paint spraying device for automobile maintenance to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a paint spraying device for automobile maintenance, comprising a paint gun body, an adjusting cover fixedly communicated with the output end of the paint gun body, a nozzle fixedly communicated with the other end of the adjusting cover, the nozzle and the output end of the paint gun body being located at the same position, a conversion column rotatably connected inside the adjusting cover, a communication hole and a cleaning hole penetrating through one end of the conversion column, a rotating shaft rotatably connected inside the cleaning hole, an adjusting gear fixedly connected to the outer surface of the rotating shaft, a driven rack meshed with the outer surface of the adjusting gear, an activity plate fixedly connected to one end of the driven rack, and a cleaning needle fixedly connected to the center position on one side of the activity plate.

[0007] As a further preferred technical solution, the outer surface of the adjusting cover is provided with an avoiding through hole, a push block is fixedly connected to the outer surface of the conversion column and located inside the avoiding through hole, the bottom end of the rotating shaft penetrates through the inner surface of the cleaning through hole to the inside of the push block, a clamping groove is formed in one side of the push block, two positioning frames are fixedly connected to the outer surface of the adjusting cover and located at the edge of the avoiding through hole, clamping blocks are slidably connected to the inside of the two positioning frames, one end of the clamping blocks is inserted into the inside of the clamping groove, and two pressing springs are fixedly connected to one side wall in the inside of the positioning frame, and one end of the two pressing springs is fixedly connected to one end of the clamping block.

[0008] As a further preferred technical solution, the inside of the positioning frame is provided with positioning grooves on the two side walls, and the two side walls of the clamping block are fixedly connected with positioning blocks, and the outer surfaces of the two positioning blocks are slidably connected with the inner surfaces of the two positioning grooves.

[0009] As a further preferred technical solution, the communicating through hole is connected with the spray head and the output end of the paint gun body, and the communicating through hole and the cleaning through hole are symmetrically arranged in the conversion column, and the two positioning frames are symmetrically arranged on the outer surface of the adjusting cover.

[0010] As a further preferred technical solution, the inner surface of the cleaning through hole is provided with two limiting grooves, and the outer surface of the movable plate is fixedly connected with two limiting blocks, and the outer surfaces of the two limiting blocks are slidably connected with the inner surfaces of the two limiting grooves.

[0011] As a further preferred technical solution, one side of the two limiting blocks is fixedly connected with a reset spring, and the other end of the two reset springs is fixedly connected with the inside of the two limiting grooves.

[0012] As a further preferred technical solution, the inner surface of the cleaning through hole is fixedly connected with a positioning plate, the outer surface of the driven rack is slidably connected with the inside of the positioning plate, the inner surface of the cleaning through hole is fixedly connected with two limiting rings, and the movable plate is located between the two limiting rings.

[0013] The utility model provides a kind of paint spraying device for automobile maintenance, with the following beneficial effects:

[0014] (1) the utility model discloses a push block is slid in the avoiding through hole by pushing, so that conversion column follows rotation and makes communicating through hole and cleaning through hole transposition, let cleaning through hole be connected with spray head, then staff is rotated by driving rotating shaft with plum blossom lifter, so that adjusting gear is rotated and drives driven rack to move in positioning plate and push movable plate to slide in cleaning through hole, let cleaning needle can be inserted into the inside of spray head and push out solid paint, realize the quick cleaning of solid paint in the clogged spray head, and the spray head does not need to be disassembled, simple structure, convenient operation, improve the service life of spray head.

[0015] The utility model discloses through setting the positioning frame, the clamping block and the card slot, can positioning and fixed to the conversion column, ensure that the communication through -hole and the cleaning through -hole can be after adjusting the same as the circular position with the spray head and the lacquer gun main body output end intercommunication, effectively guarantee that the cleaning needle can accurately enter the spray hole of the spray head, and can ensure that the lacquer gun does not appear activity in normal working process conversion column, improve structural stability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic diagram of the whole structure of the utility model;

[0017] Figure 2 It is the exploded schematic diagram of the inside structure of the adjusting cover of the utility model;

[0018] Figure 3 It is the schematic diagram of the inside structure of the conversion column of the utility model;

[0019] Figure 4 It is the exploded schematic diagram of the inside structure of the positioning frame of the utility model.

[0020] In the drawing: 1, lacquer gun main body;2, adjusting cover;3, spray head;4, conversion column;5, communication through -hole;6, cleaning through -hole;7, rotation shaft;8, adjusting gear;9, driven rack;10, movable plate;11, cleaning needle;12, limit slot;13, limit block;14, return spring;15, positioning plate;16, avoiding through -hole;17, push block;18, positioning frame;19, clamping block;20, pressure spring;21, card slot;22, positioning slot;24, positioning block;25, limit ring. DETAILED DESCRIPTION

[0021] The technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment.

[0022] The utility model discloses technical scheme: such as Figures 1-3As shown, in this embodiment, a paint spraying device for automobile repair, comprising a paint gun body 1, the output end of the paint gun body 1 is fixedly connected with an adjusting cover 2, the other end of the adjusting cover 2 is fixedly connected with a spray head 3, the spray head 3 is located at the same position as the output end of the paint gun body 1, a conversion column 4 is rotatably connected inside the adjusting cover 2, a communication hole 5 and a cleaning hole 6 are penetrated through one end of the conversion column 4, a rotating shaft 7 is rotatably connected inside the cleaning hole 6, an adjusting gear 8 is fixedly connected to the outer surface of the rotating shaft 7, a driven rack 9 is engaged with the outer surface of the adjusting gear 8, an activity plate 10 is fixedly connected to one side of the driven rack 9, and a cleaning needle 11 is fixedly connected to the activity plate 10 at the central position, wherein, by setting the adjusting cover 2, the paint gun body 1, the conversion column 4 and the spray head 3 can be connected together, and the communication hole 5 will not leak when it is communicated with the two, by setting the adjusting gear 8, the driven rack 9 can be moved left and right, which is convenient for adjustment, by setting the cleaning needle 11, it can enter the inside of the spray head 3 during the movement of the activity block 10, and the blockage can be pushed out from inside to outside, which is convenient for cleaning, the number and thickness of the cleaning needle 11 can be changed according to the structure of the spray head 3.

[0023] As shown in Figure 2 and Figure 4 , an avoiding hole 16 is provided through the outer surface of the adjusting cover 2, a push block 17 is fixedly connected to the outer surface of the conversion column 4 and located inside the avoiding hole 16, the bottom end of the rotating shaft 7 penetrates through the inner surface of the cleaning hole 6 to the inside of the push block 17, a clamping groove 21 is provided on one side of the push block 17, two positioning frames 18 are fixedly connected to the outer surface of the adjusting cover 2 and located at the edge position of the avoiding hole 16, a clamping block 19 is slidably connected inside each of the two positioning frames 18, one end of the clamping block 19 is inserted into the clamping groove 21, two pressing springs 20 are fixedly connected to one side wall inside the positioning frame 18, and the other end of the two pressing springs 20 is fixedly connected to one end of the clamping block 19, wherein, by setting the clamping block 19 and the clamping groove 21, the push block 17 can be fixed, so that the conversion column 4 is fixed, and it is ensured that the communication hole 5 and the cleaning hole 6 can be fixed at the specified position.

[0024] As shown in Figure 4 , positioning grooves 22 are provided in the two side walls inside the positioning frame 18, positioning blocks 24 are fixedly connected to the two sides of the clamping block 19, and the outer surfaces of the two positioning blocks 24 are respectively slidably connected with the inner surfaces of the two positioning grooves 22, so as to improve the stability of the clamping block 19 and prevent it from shaking or tilting.

[0025] As shown in Figure 2 and Figure 3As shown, the communication hole 5 is communicated with the spray head 3 and the output end of the paint gun body 1, the communication hole 5 and the cleaning hole 6 are symmetrically arranged in the conversion column 4, the two positioning frames 18 are symmetrically arranged on the outer surface of the adjusting cover 2, when the communication hole 5 is communicated with the spray head 3 and the output end of the paint gun body 1, the three circles are on the same straight line, the outer surface of the conversion column 4 is closely attached to the inner surface of the adjusting cover 2, and the two ends of the conversion column 4 located at the edge position of the communication hole 5 can further improve the sealing property by installing the sealing ring.

[0026] As shown in the figure, Figure 3 The inner surface of the cleaning hole 6 is provided with two limiting grooves 12, and the outer surface of the movable plate 10 is fixedly connected with two limiting blocks 13, the outer surfaces of the two limiting blocks 13 are respectively connected with the inner surfaces of the two limiting grooves 12 in a sliding manner, which can improve the stability of the movable plate 10 and prevent it from rotating or tilting, thereby ensuring that the cleaning needle 11 can accurately enter the inside of the spray head 3.

[0027] As shown in the figure, Figure 3 The two limiting blocks 13 are fixedly connected with reset springs 14 on one side, and the other ends of the two reset springs 14 are respectively fixedly connected with the inner side walls of the two limiting grooves 12, which can facilitate the resetting of the cleaning needle 11.

[0028] As shown in the figure, Figure 3 The inner surface of the cleaning hole 6 is fixedly connected with a positioning plate 15, and the outer surface of the driven rack 9 is connected with the inner surface of the positioning plate 15 in a sliding manner, the inner surface of the cleaning hole 6 is fixedly connected with two limiting rings 25, and the movable plate 10 is located between the two limiting rings 25, by arranging the positioning plate 15, the driven rack 9 can be positioned, the stability and the meshing force between the adjusting gear 8 can be improved, by arranging the limiting ring 9, the activity range of the movable plate 10 can be limited, and the movable plate 10 can be prevented from falling off from the inside of the cleaning hole 6, in the case that the cleaning needle 11 is thin, the limiting ring 9 can be replaced with a hollow limiting plate, the cleaning needle 11 is movably inserted into the hollow limiting plate, the structural strength of the cleaning needle 11 in the cleaning process is improved, and the bending phenomenon is not easy to occur.

[0029] The utility model provides a kind of paint spraying device for automobile maintenance, specific working principle as follows:

[0030] When the nozzle 3 is blocked and needs to be cleaned, the staff pulls the bottom clamping block 19 to make it enter the inside of the positioning frame 18 to release the restriction on the push block 17 and the conversion column 4, then pushes the push block 17 to slide in the avoiding through hole 16 and pulls the top clamping block 19 to make the clamping block 19 enter the inside of the positioning frame 18, releases the clamping block 19 after the push block 17 reaches the other end of the avoiding through hole 16, the elastic deformation of the pressing spring 20 is restored and the clamping block 19 is pushed to slide in the positioning frame 18, makes one end of the clamping block 19 enter the inside of the clamping groove 21 to fix the conversion column 4, at this time the position of the communicating through hole 5 and the position of the cleaning through hole 6 are exchanged, then the staff drives the rotating shaft 7 to rotate through the Phillips screwdriver, makes the adjusting gear 8 rotate and drives the driven rack 9 to move in the positioning plate 15 and pushes the movable plate 10 to slide in the cleaning through hole 6, makes the cleaning needle 11 be able to insert into the inside of the nozzle 3 and push the solid paint out.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paint spraying device for automobile repair, comprising a paint gun body (1), characterized in that: The paint gun body (1) has an adjustable cover (2) fixedly connected to its output end. The other end of the adjustable cover (2) is fixedly connected to a nozzle (3). The nozzle (3) and the output end of the paint gun body (1) are located at the same position. The adjustable cover (2) has a conversion column (4) rotatably connected inside. One end of the conversion column (4) has a through hole (5) and a cleaning through hole (6). The cleaning through hole (6) has a rotating shaft (7) rotatably connected inside. The outer surface of the rotating shaft (7) is fixedly connected to an adjusting gear (8). The outer surface of the adjusting gear (8) is meshed with a driven rack (9). One end of the driven rack (9) is fixedly connected to a movable plate (10). A cleaning needle (11) is fixedly connected to one side of the movable plate (10) and at its center position.

2. The painting device for automobile repair according to claim 1, characterized in that: The outer surface of the adjusting cover (2) is provided with a clearance through hole (16). The outer surface of the conversion column (4) and inside the clearance through hole (16) are fixedly connected to a push block (17). The bottom end of the rotating shaft (7) passes through the inner surface of the cleaning through hole (6) to the inside of the push block (17). A slot (21) is provided on one side of the push block (17). Two positioning frames (18) are fixedly connected on the outer surface of the adjusting cover (2) and at the edge of the clearance through hole (16). A locking block (19) is slidably connected inside each of the two positioning frames (18). One end of the locking block (19) is inserted into the slot (21). Two pressure springs (20) are fixedly connected to one side wall inside the positioning frame (18). The other end of the two pressure springs (20) is fixedly connected to one end of the locking block (19).

3. The painting device for automobile repair according to claim 2, characterized in that: The positioning frame (18) has positioning grooves (22) on both sides inside. The card block (19) has positioning blocks (24) fixedly connected to both sides. The outer surfaces of the two positioning blocks (24) are slidably connected to the inner surfaces of the two positioning grooves (22).

4. The paint spraying device for automobile repair according to claim 3, characterized in that: The connecting hole (5) is connected to the output end of the nozzle (3) and the paint gun body (1). The connecting hole (5) and the cleaning hole (6) are symmetrically arranged inside the conversion column (4). The two positioning frames (18) are symmetrically arranged on the outer surface of the adjustment cover (2).

5. The painting device for automobile repair according to claim 1, characterized in that: Two limiting grooves (12) are provided on the inner surface of the cleaning through hole (6), and two limiting blocks (13) are fixedly connected to the outer surface of the movable plate (10). The outer surfaces of the two limiting blocks (13) are slidably connected to the inner surfaces of the two limiting grooves (12).

6. The painting device for automobile repair according to claim 5, characterized in that: Each of the two limiting blocks (13) is fixedly connected to a reset spring (14) on one side, and the other end of the two reset springs (14) is fixedly connected to one side wall inside the two limiting grooves (12).

7. A painting device for automobile repair according to claim 6, characterized in that: A positioning plate (15) is fixedly connected to the inner surface of the cleaning through hole (6), the outer surface of the driven rack (9) is slidably connected to the inside of the positioning plate (15), two limiting rings (25) are fixedly connected to the inner surface of the cleaning through hole (6), and the movable plate (10) is located between the two limiting rings (25).

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