Coating spray gun device

Abstract

The utility model discloses a coating spray gun device, and relates to the technical field of spray guns, the coating spray gun device comprises a spray gun body, the spray gun body is provided with a spray head, the outer side wall of the spray head is provided with a plurality of adjusting assemblies, and each adjusting assembly comprises an inserting plate and a supporting rod slidably connected with the inserting plate; a clamping plate is arranged at the end, located in the inserting plate, of the supporting rod and provided with a pair of clamping rods, second clamping teeth are arranged on the outer side walls of the clamping rods, the clamping plate is slidably provided with a moving block, and the moving block is provided with a clamping block which can abut against the clamping rods to prevent the clamping rods from getting close. The adjusting assembly stabilizes the distance between the spray gun and the spraying face, uneven spraying caused by distance change is avoided, the spraying quality is improved, the device is suitable for large-area spraying operation, and the defects of sagging, incomplete covering and the like are reduced; the adjusting assembly is of a structure that an inserting plate and a supporting rod are connected in a sliding mode, the distance between the spray gun body and the spraying face can be adjusted and fixed according to different spraying requirements, and operation is easy and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spray guns, in particular to a paint spray gun device. BACKGROUND

[0002] In the early days, the painting of paint mostly relied on manual brushing, which was inefficient, difficult to ensure the uniformity of the paint surface, and consumed a lot of manpower and time. With the acceleration of industrialization, the requirements for painting efficiency and quality are increasing, so the air pressure type paint spray gun has emerged as the times require. It uses compressed air to blow paint into small particles and spray them at high speed onto the surface of the coated object, greatly improving the painting speed and enabling the paint to be more evenly covered, meeting the initial needs of large-scale production and fine painting.

[0003] At present, the air pressure type paint spray gun has developed into various types and designs. It is generally composed of a gun body, a paint container, an air compressor connection port, a nozzle and other core components. The operating principle of the spray gun is to provide stable air pressure by an air compressor to drive the paint to be sprayed from the nozzle. The gun body is equipped with an adjustment knob that can adjust the air pressure and the amount of paint sprayed within a certain range to adapt to different painting tasks, such as increasing the air pressure and paint output for large-area wall painting, and reducing the parameters for fine furniture part painting.

[0004] For the above related technology, the inventor believes that the existing air pressure type paint spray gun is difficult to stably control the distance between the spray gun and the coated object during actual use. Especially when painting a large area, the operator only relies on experience and hand-held stability to maintain the distance, which is prone to deviation and may result in uneven overall painting. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a paint spray gun device to improve the problem that the existing air pressure type paint spray gun is difficult to stably control the distance between the spray gun and the coated object during actual use.

[0006] The present application provides a paint spray gun device, which adopts the following technical solution:

[0007] The utility model provides a paint spraying gun device, including the spraying gun body, which is provided with a spray head, the outer wall of the spray head is provided with a plurality of adjusting components which can be in contact with the spraying surface to stabilize the spraying distance, the adjusting component includes a plug-in plate with a built-in cavity and one-side opening and a support rod which is slidably connected with the plug-in plate along the length direction of the plug-in plate, the inner wall of the plug-in plate is provided with two rows of clamping teeth one which are spaced apart along the length direction of the plug-in plate, one end of the support rod in the plug-in plate is provided with a clamping plate, the clamping plate is provided with a pair of clamping rods, the outer wall of the clamping rod is provided with clamping teeth two, when the support rod moves along the length direction of the plug-in plate, the pair of clamping rods can be close to each other under the extrusion of the clamping teeth one and the clamping teeth two, the clamping plate is slidably provided with a moving block, and the moving block is provided with a clamping block which can be in contact with the pair of clamping rods to prevent the clamping rods from being close to each other.

[0008] By adopting the above technical scheme, the outer wall of the spray head is provided with the adjusting components which can be in contact with the spraying surface to stabilize the distance between the spraying gun and the spraying surface, avoid the problem of uneven spraying caused by the change of the distance, improve the spraying quality, be suitable for large-area spraying operation and reduce defects such as sagging and incomplete coverage; the adjusting component adopts the structure that the plug-in plate and the support rod are slidably connected, the spraying distance can be flexibly adjusted according to different spraying requirements. By sliding the moving block, the clamping block is in contact with the pair of clamping rods to prevent the clamping rods from being close to each other, so that the clamping teeth one and the clamping teeth two are clamped and fixed, the distance between the spraying gun body and the spraying surface is conveniently adjusted, and the operation is simple and reliable.

[0009] Optionally, the clamping teeth one and the clamping teeth two are both semicylinders.

[0010] By adopting the above technical scheme, the clamping teeth one and the clamping teeth two are both semicylinders, which reduces the contact area between the clamping teeth, facilitates the free sliding adjustment of the plug-in rod when the clamping block is not in contact with the clamping rod, and improves the smoothness of the movement of the plug-in rod.

[0011] Optionally, the end of the clamping rod away from the support rod is provided with a clamping block, and the side of the clamping block close to the clamping block is provided with an inclined surface which facilitates the insertion of the clamping block and the contact of the clamping block with the pair of clamping blocks to fix the position of the clamping teeth two.

[0012] By adopting the above technical scheme, the inclined surface facilitates the insertion of the clamping block and the contact of the clamping block with the pair of clamping blocks, so that the position of the clamping teeth two is quickly fixed through the interference fit between the clamping block and the clamping block, the operation difficulty is reduced, the operator can more conveniently and quickly complete the fixing operation of the adjusting component, and the work efficiency is improved.

[0013] Optionally, the inner wall of the pair of clamping rods is provided with a sliding groove one, and the moving block is provided with a sliding block one which cooperates with the sliding groove one on both sides.

[0014] By adopting the technical scheme, the inner side wall of the pair of clamping rods is provided with a sliding groove one, and the sliding block is provided with a sliding block one on both sides, the cooperation of the sliding groove and the sliding block provides accurate guidance for the sliding of the sliding block in the clamping rod, improves the stability of the movement of the sliding block, and helps the clamping block to accurately abut against the clamping rod.

[0015] Optionally, the inner side wall of the plug-in plate is provided with a sliding groove two along the length direction, and the clamping plate is provided with a sliding block two matched with the sliding groove two.

[0016] By adopting the technical scheme, the sliding of the supporting rod in the plug-in plate is smooth, the adjustment accuracy and reliability of the adjustment assembly are affected by unstable sliding, and the accuracy of the spraying distance adjustment is further improved.

[0017] Optionally, the sliding block is provided with an adjustment plate for manually sliding to adjust the position of the sliding block.

[0018] By adopting the technical scheme, the sliding block is provided with an adjustment plate for manually sliding to adjust the position of the sliding block, and the operator can directly move the sliding block through the adjustment plate, which is more intuitive and convenient to operate.

[0019] Optionally, the end of the supporting rod away from the plug-in plate is provided with a universal wheel.

[0020] By adopting the technical scheme, the end of the supporting rod away from the plug-in plate is provided with a universal wheel, so that the spray gun can move more flexibly during spraying; when spraying a large area, the universal wheel can abut against the spraying surface to reduce the friction between the spray gun and the spraying surface, reduce the labor intensity of the operator, facilitate the movement of the spray gun in different directions, and improve the efficiency and coverage of spraying.

[0021] Optionally, the outer side wall of the spray head is sleeved with a pair of fixing frames, the fixing frames are provided with fixing grooves on both sides of the spray head, the fixing grooves corresponding to the pair of fixing frames are provided with fixing rods, the fixing rods are provided with rotating plates at both ends, the rotating plates can abut against the fixing rods to fasten the fixing frames to the spray head, and the adjustment assembly is arranged at both ends of the fixing frame.

[0022] By adopting the technical scheme, the outer side wall of the spray head is sleeved with a pair of fixing frames, fixing rods and rotating plates, which facilitates the installation of the adjustment assembly on the spray head, and the rotating plates can be rotated to fasten the fixing frames, so as to ensure that the adjustment assembly is connected firmly with the spray head; this helps to improve the installation and dismounting efficiency of the adjustment assembly, and facilitates the installation and use when needed.

[0023] Optionally, the side of the fixing frame abutting against the spray head is provided with an elastic pad.

[0024] By adopting the technical scheme, the elastic pad layer is arranged on the side of the fixed frame abutting against the sleeve, the elastic pad layer can play a buffering role, reduces the direct rigid contact between the fixed frame and the sleeve, avoids damage to the sleeve in the fastening process, and prolongs the service life of the device. Meanwhile, the elastic pad layer can also increase the friction force, so that the fixing is more firm, and the stability of the adjusting assembly in the use process is ensured.

[0025] To sum up, the present application includes at least one of the following beneficial technical effects of the paint spraying gun device:

[0026] 1. The adjusting assembly arranged on the outer wall of the spray head can abut against the spraying surface, which can effectively stabilize the distance between the spray gun and the spraying surface, avoid uneven spraying caused by distance change, improve the spraying quality, be suitable for large-area spraying operation, and reduce defects such as sagging and incomplete coverage; the adjusting assembly adopts a structure in which the insertion plate and the support rod are slidingly connected, so that the spraying distance can be flexibly adjusted according to different spraying requirements. The sliding block is used to make the clamping block abut against the pair of clamping rods to prevent the clamping rods from approaching each other, so that the clamping teeth one and the clamping teeth two are clamped and fixed, the distance between the spray gun body and the spraying surface is conveniently adjusted, and the operation is simple and reliable;

[0027] 2. The clamping teeth one and the clamping teeth two are designed as semicylinders, which reduces the contact area between the clamping teeth, facilitates the free sliding adjustment of the insertion rod when the clamping block does not abut against the clamping rod, and improves the smoothness of the movement of the insertion rod;

[0028] 3. The moving block is provided with an adjusting plate for manually sliding and adjusting the position of the moving block, so that the operator can directly move the moving block through the adjusting plate, and the operation is more intuitive and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the paint spraying gun device.

[0030] Figure 2 is a schematic diagram of the adjusting assembly structure in the embodiment.

[0031] In the drawings, 1 is a spray gun body; 11 is a spray head; 2 is an adjusting assembly; 21 is an insertion plate; 211 is clamping teeth one; 22 is a support rod; 23 is a sliding groove two; 3 is a clamping plate; 31 is a clamping rod; 311 is clamping teeth two; 312 is a clamping block; 313 is a sliding groove one; 32 is a moving block; 321 is a clamping block; 3211 is an inclined surface; 322 is a sliding block one; 33 is a sliding block two; 4 is an adjusting plate; 5 is a universal wheel; 6 is a fixed frame; 61 is a fixed groove; 7 is a fixed rod; 71 is a rotating plate; 8 is an elastic pad layer. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the drawings. Figure 1 - the drawings Figure 2 The present application will be further described in detail.

[0033] A paint spraying gun device, referring to Fig. 1, comprises a spraying gun body 1 which is the main structure for realizing the paint spraying function, generally composed of a gun body, a paint conveying channel and the like (a common air pressure spraying gun structure, which is the industry's public knowledge and will not be described in detail here). The spraying gun body 1 is provided with a spray head 11 which is a key component for atomizing and spraying paint onto the spraying surface, and is in communication with the paint conveying channel in the spraying gun body 1, so that the paint can be smoothly sprayed out.

[0034] Referring to Fig. 1, the outer side wall of the spray head 11 is provided with a plurality of adjusting assemblies 2 which can abut against the spraying surface to stabilize the spraying distance, four in this embodiment. The outer side wall of the spray head 11 is sleeved with a pair of fixing frames 6 which are installed in the outer side wall of the spray head 11 in a sleeved manner, facilitating installation, disassembly and adjustment of the position of the fixing frame 6. The fixing frame 6 is provided with a fixing groove 61 on both sides of the spray head 11, and a fixing rod 7 is arranged in the corresponding fixing groove 61 of the pair of fixing frames 6. The fixing rod 7 is inserted into the pair of corresponding fixing grooves 61, and the both ends of the fixing rod 7 are integrally provided with a rotating plate 71 which can abut against the fixing frame 6 to fasten the fixing frame 6 to the spray head 11. When the rotating plate 71 is rotated to abut against the fixing frame 6, an upward and downward pressure can be generated, so that the fixing frame 6 is tightly sleeved on the outer side of the spray head 11, playing a fastening role. The adjusting assembly 2 is arranged at both ends of the fixing frame 6, and the adjusting assembly 2 is fixedly connected with both ends of the fixing frame 6 by welding. The side of the fixing frame 6 abutting against the spray head 11 is provided with an elastic pad layer 8 which is fixed on the side of the fixing frame 6 abutting against the spray head 11 by pasting. The elastic pad layer 8 is made of rubber material.

[0035] Referring to Fig. 1, the adjusting assembly 2 comprises a plug-in plate 21 with a built-in cavity and a single-sided opening, and a supporting rod 22 which is slidingly connected with the plug-in plate 21 along the length direction of the plug-in plate 21. The cavity of the plug-in plate 21 is used to accommodate a part of the supporting rod 22, and the supporting rod 22 can freely slide in the cavity of the plug-in plate 21 along the length direction of the plug-in plate 21 through the hole formed at one end of the plug-in plate 21, so as to realize the adjustment of the length of the adjusting assembly 2. The end of the supporting rod 22 away from the plug-in plate 21 is provided with a universal wheel 5 which is fixed on the end of the supporting rod 22 by bolts. The universal wheel 5 can make the spraying gun more flexible during spraying, reducing the friction between the spraying gun and the spraying surface.

[0036] Referring to FIG. 2, the two rows of clamping teeth 211 are arranged at intervals along the length direction of the adapter plate 21, and the clamping teeth 211 are protruding structures integrally formed on the inner side wall of the adapter plate 21. The two rows of clamping teeth 211 are arranged at intervals to form a specific pitch. The support rod 22 is provided with a clamping plate 3 at one end inside the adapter plate 21, and the clamping plate 3 is fixedly connected with the end of the support rod 22 by welding. The clamping plate 3 is provided with a pair of clamping rods 31, which are integrally arranged with the clamping plate 3. The clamping rods 31 are made of plastic material with certain toughness to ensure that the clamping rods 31 will not break when they are bent. The outer side wall of the clamping rod 31 is provided with clamping teeth 311, which are protruding structures integrally formed on the outer side wall of the clamping rod 31 and cooperate with the clamping teeth 211. The clamping teeth 211 and the clamping teeth 311 are both semicylinders.

[0037] Referring to FIG. 2, when the support rod 22 moves along the length direction of the adapter plate 21, the pair of clamping rods 31 can be close to each other under the extrusion of the clamping teeth 211 and the clamping teeth 311. When the support rod 22 slides in the adapter plate 21, the clamping teeth 211 and the clamping teeth 311 are in contact with each other and produce extrusion, so that the clamping rods 31 rotate around the connecting point with the clamping plate 3, thereby realizing the close of the pair of clamping rods 31. The clamping plate 3 is slidably provided with a moving block 32, and a sliding groove compatible with the moving block 32 is formed in the clamping plate 3. The moving block 32 can slide in the sliding groove along the length direction of the clamping plate 3. The moving block 32 is provided with an adjusting plate 4 for manually sliding to adjust the position of the moving block 32. The adjusting plate 4 is integrally formed with the moving block 32, and slides in the single-side opening of the adapter plate 21. The operator can move the position of the moving block 32 by pushing the adjusting plate 4. The moving block 32 is provided with a clamping block 321 which can abut against the pair of clamping rods 31 to prevent the clamping rods 31 from being close to each other. The clamping block 321 is integrally formed with the moving block 32. When the moving block 32 is moved to the appropriate position, the clamping block 321 can abut against the pair of clamping rods 31, thereby limiting the rotation of the clamping rods 31 and realizing the fixation of the length of the adjusting assembly 2.

[0038] Referring to FIG. 2, the inner side wall of the pair of clamping rods 31 is provided with a sliding groove 313, which is a recess structure integrally formed on the inner side wall of the clamping rod 31. The two sides of the moving block 32 are provided with sliding blocks 322 which cooperate with the sliding grooves 313. The sliding blocks 322 are integrally formed with the moving block 32 and can slide in the sliding grooves 313. The inner side wall of the adapter plate 21 is provided with a sliding groove 23 along the length direction thereof, and the sliding groove 23 is a recess structure integrally formed on the inner side wall of the adapter plate 21. The clamping plate 3 is provided with sliding blocks 33 which cooperate with the sliding grooves 23. The sliding blocks 33 are integrally formed with the clamping plate 3 and can slide in the sliding grooves 23.

[0039] The implementation principle of the embodiment of the present application is as follows:

[0040] In actual use, first, a pair of fixing frames 6 are sleeved outside the spray head 11, the fixing rods 7 are inserted into the fixing grooves 61 on both sides of the fixing frames 6, the rotating plates 71 at both ends of the fixing rods 7 are rotated to abut against the fixing rods 7, the fixing frames 6 are buffered and fastened by the elastic pads 8; the adjusting assemblies 2 are welded at both ends of the fixing frames 6. According to the spraying requirements, the supporting rods 22 slidably connected with the plug-in plates 21 are pulled or pushed to preliminarily adjust the spraying distance, when moved, the tooth one 211 extrudes the tooth two 311 to make the clamping rods 31 close to each other; after adjusted in place, the adjusting plate 4 is pushed to make the moving blocks 32 slide, the clamping blocks 321 are inserted between the clamping rods 31 to prevent the clamping rods 31 from closing to each other, so as to fix the length of the adjusting assemblies 2. When spraying, the universal wheels 5 at the ends of the supporting rods 22 can reduce the friction with the spraying surface, the spray gun body 1 can move flexibly, the adjusting assemblies 2 abut against the spraying surface to stabilize the spraying distance, the uniform coating of the paint is ensured, the problems such as sagging, incomplete covering and the like are avoided, and the spraying quality and efficiency are improved.

[0041] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not intended to limit the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A paint spray gun device, comprising a spray gun body (1), characterized in that: The spray gun body (1) is provided with a nozzle (11). The outer wall of the nozzle (11) is provided with several adjustment components (2) that can abut against the spraying surface to stabilize the spraying distance. The adjustment components (2) include a plug plate (21) with a built-in cavity and an opening on one side, and a support rod (22) that is slidably connected to the plug plate (21) along the length direction of the plug plate (21). The inner wall of the plug plate (21) is provided with two rows of locking teeth (211) spaced apart along the length direction of the plug plate (21). The support rod (22) is located inside the plug plate (21). A clamping plate (3) is provided at one end, and a pair of clamping rods (31) are provided on the clamping plate (31). The outer side wall of the clamping rods (31) is provided with a second locking tooth (311). When the support rod (22) moves along the length direction of the plug-in plate (21), the pair of clamping rods (31) can approach each other under the squeezing of the first locking tooth (211) and the second locking tooth (311). The clamping plate (3) is slidably provided with a moving block (32), and the moving block (32) is provided with a locking block (321) that can abut against the pair of clamping rods (31) to prevent the clamping rods (31) from approaching each other.

2. The paint spray gun device according to claim 1, characterized in that: Both the first locking tooth (211) and the second locking tooth (311) are semi-cylinders.

3. The paint spray gun device according to claim 1, characterized in that: The clamping rod (31) is provided with a clamping block (312) at one end away from the support rod (22), and the locking block (321) is provided with an inclined surface (3211) on the side near the clamping block (312) to facilitate the insertion of the locking block (321) and to abut against the pair of clamping blocks (312) to fix the position of the locking tooth (311).

4. The paint spray gun device according to claim 1, characterized in that: The inner sidewalls of the pair of clamping rods (31) are provided with a sliding groove (313), and the two sides of the moving block (32) are provided with a slider (322) in cooperation with the sliding groove (313).

5. A paint spray gun device according to claim 1, characterized in that: The inner sidewall of the plug plate (21) is provided with a second sliding groove (23) along its length direction, and the clamping plate (3) is provided with a second sliding block (33) in cooperation with the second sliding groove (23).

6. A paint spray gun device according to claim 1, characterized in that: The movable block (32) is provided with an adjustment plate (4) that facilitates manual sliding adjustment of the position of the movable block (32).

7. A paint spray gun device according to claim 1, characterized in that: The support rod (22) is provided with a caster wheel (5) at the end away from the plug plate (21).

8. A paint spray gun device according to claim 1, characterized in that: The nozzle (11) is fitted with a pair of fixing brackets (6) on its outer side wall. The fixing brackets (6) are provided with fixing grooves (61) on both sides of the nozzle (11). Fixing rods (7) are provided in the fixing grooves (61) corresponding to the pair of fixing brackets (6). The fixing rods (7) are provided with rotating plates (71) at both ends, which can be rotated to abut against the fixing brackets (6) to secure the fixing brackets (6) and fix the nozzle (11). The adjusting components (2) are provided at both ends of the fixing brackets (6).

9. A paint spray gun device according to claim 8, characterized in that: An elastic pad (8) is provided on the side of the fixing frame (6) that abuts against the nozzle (11).

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