Quickly-disassembled spray head structure of spraying machine

Abstract

The utility model discloses a quick-release spray head structure of a spraying machine, which belongs to the technical field of spraying machines and comprises a spraying machine spray gun, a mounting insertion pipe is arranged at the end of the spraying machine spray gun, a spray gun head is sleeved on the outer side of the mounting insertion pipe, and a fixing snap ring is fixedly connected to the outer side of the spray gun head. According to the utility model, the spray gun head is mounted on the spray gun of the spraying machine through the insertion between the spray gun head and the mounting insertion pipe, the spray gun head is fixed through the matching between the L-shaped clamping plate and the fixed clamping ring, and the end part of the L-shaped clamping plate is directly separated from the fixed clamping ring to relieve the fixation of the spray gun head during disassembly; the spray gun head is directly pulled out from the outer side of the mounting insertion pipe, the function of quickly detaching the spray gun head is achieved, the mounting sealing performance between the spray gun of the spraying machine and the spray gun head can be guaranteed through cooperation of the insertion ring groove, the insertion ring base, the mounting insertion pipe and the sealing ring, and the practicability of the quick-detaching type spray head structure of the spraying machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying machines, and more specifically to a quick-detachable spray head structure of a spraying machine. Background Art

[0002] A sprayer is a special coating equipment that uses spraying technology. The principle is to control the airflow to instantly push the air distribution reversing device to reverse, so that the piston of the pneumatic motor can make a stable and continuous reciprocating motion, pressurize the inhaled paint, and transport the paint to the spray gun of the sprayer through a high-pressure hose. The spray gun instantly atomizes the paint and releases it to the surface of the object to be coated. The sprayer is mainly composed of a feeding device, a spray gun, and an atomization source. The nozzle at the front of the spray gun needs to be replaced after being damaged. In the prior art, the nozzle and the spray gun are threaded. In order to ensure the sealing of the connection between the nozzle and the spray gun, it is necessary to tighten it with the help of a wrench, which is not convenient for disassembly and installation. For this reason, we propose a quick-detachable nozzle structure for a sprayer. Utility Model Content

[0003] In view of the problems mentioned in the above background technology, the purpose of the utility model is to provide a quick-detachable spray head structure for a spray machine.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A quick-detachable spray head structure for a spray machine comprises a spray gun, wherein the end of the spray gun is provided with a mounting tube, the outer side of the mounting tube is sleeved with a spray gun head, the outer side of the spray gun head is fixedly connected to a fixing clamp ring, the top and bottom surfaces of the end of the spray gun are respectively fixedly connected to a rotating frame, the inner side of the rotating frame is rotatably connected to an L-shaped clamping plate, one end of the L-shaped clamping plate extends to the outer side of the fixing clamping ring, the inner side surface of the end of the L-shaped clamping plate is fitted with the side surface of the fixing clamping ring, the inner side surface of the L-shaped clamping plate is fixedly connected to a first spring, the end of the first spring is connected to the spray gun, a fixing mechanism is provided on the spray gun, the end of the spray gun is provided with an insert ring groove, the end of the spray gun head is fixedly connected to an insert ring seat, and the end of the insert ring seat extends to the inner cavity of the insert ring groove.

[0006] As a preferred solution of the utility model, the fixing mechanism includes an outer sleeve fixedly connected to the outside of the spray gun of the sprayer, the inner wall of the outer sleeve is fixedly connected with a plurality of second springs, the ends of the plurality of second springs are fixedly connected with a support ring, the end of the support ring extends to the inner side of the other end of the two L-shaped clamping plates, the inner side surface of the support ring is in contact with the outer side surface of the spray gun of the sprayer, two J-shaped grooves are provided on the outer side of the outer sleeve, the outer side of the support ring is fixedly connected with a lever column, and the end of the lever column passes through the J-shaped groove and extends to the outside of the outer sleeve.

[0007] As a preferred solution of the utility model, an insertion hole is formed on the inner wall of the insert ring groove, a plug pin is fixedly connected to the end surface of the insert ring seat, and the end of the plug pin extends to the inner cavity of the insertion hole.

[0008] As a preferred solution of the utility model, a sealing ring is fixedly connected to the inner wall of the spray gun head, and the end of the installation tube is in contact with the sealing ring.

[0009] As a preferred solution of the utility model, the outer diameter of the installation insert is equal to the inner diameter of the spray gun head, and the inner wall of the insert ring groove fits the outer side surface of the insert ring seat.

[0010] As a preferred solution of the utility model, the outer diameter of the plug is equal to the inner diameter of the plug hole.

[0011] The advantages of the utility model are:

[0012] (1) In the utility model, the spray gun head is installed on the spray gun of the spray machine by plugging it into the installation plug tube, and the spray gun head is fixed by the cooperation between the L-shaped clamping plate and the fixed clamping ring. When disassembling, the end of the L-shaped clamping plate is directly separated from the fixed clamping ring to release the fixation of the spray gun head, and the spray gun head is directly pulled out from the outside of the installation plug tube, thereby realizing the function of quick disassembly of the spray gun head. The installation sealing between the spray gun of the spray machine and the spray gun head can be ensured by the cooperation of the plug ring groove and the plug ring seat, the installation plug tube and the sealing ring, thereby improving the practicality of the quick-detachable spray head structure of the spray machine.

[0013] (2) In the utility model, through the coordinated use of the outer sleeve, the second spring, the support ring, the J-shaped groove and the lever, when the L-shaped clamping plate fixes the fixed clamping ring on the outside of the spray gun head, the elastic force of the second spring is used to drive the support ring to be inserted into the inner side of the rear end of the L-shaped clamping plate, thereby avoiding the L-shaped clamping plate from being pressed accidentally, ensuring the installation firmness between the spray gun and the spray gun head of the spray machine, and improving the working quality of the quick-detachable spray head structure of the spray machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an exploded view of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the spray gun of the spray machine of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the spray gun head of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Spray gun; 2. Install the plug tube; 3. Spray gun head; 4. Fixing clamp ring; 5. Fixing mechanism; 6. Rotating frame; 7. L-shaped clamp plate; 8. First spring; 9. Insert ring groove; 10. Insert ring seat; 11. Sealing ring; 12. Insert hole; 13. Latch pin; 14. Outer sliding sleeve; 15. Second spring; 16. Support ring; 17. J-shaped groove; 18. Wrench. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example:

[0025] See also Figure 1-5A quick-detachable spray head structure for a sprayer comprises a spray gun 1, a mounting insert 2 is provided at the end of the spray gun 1, a spray gun head 3 is sleeved on the outer side of the mounting insert 2, a fixing clamp ring 4 is fixedly connected to the outer side of the spray gun head 3, a rotating frame 6 is fixedly connected to the top and bottom surfaces of the end of the spray gun 1 respectively, an L-shaped clamping plate 7 is rotatably connected to the inner side of the rotating frame 6, one end of the L-shaped clamping plate 7 extends to the outer side of the fixing clamping ring 4, the inner side surface of the end of the L-shaped clamping plate 7 is fitted with the side surface of the fixing clamping ring 4, a first spring 8 is fixedly connected to the inner side surface of the L-shaped clamping plate 7, and the end of the first spring 8 is connected to the spray gun 1 of the spray machine, a fixing mechanism 5 is provided on the spray gun 1, a plug ring groove 9 is opened at the end of the spray gun 1, a plug ring seat 10 is fixedly connected to the end of the spray gun head 3, and the end of the plug ring seat 10 extends to the inner cavity of the plug ring groove 9.

[0026] For details, please refer to Figure 1 , Figure 2 and Figure 5 The fixing mechanism 5 includes an outer sleeve 14 fixedly connected to the outside of the spray gun 1 of the spray machine, and a plurality of second springs 15 are fixedly connected to the inner wall of the outer sleeve 14. The ends of the plurality of second springs 15 are fixedly connected to a support ring 16. The end of the support ring 16 extends to the inner side of the other end of the two L-shaped clamping plates 7. The inner side surface of the support ring 16 is in contact with the outer side surface of the spray gun 1. Two J-shaped grooves 17 are provided on the outer side of the outer sleeve 14. A lever column 18 is fixedly connected to the outer side of the support ring 16. The end of the lever column 18 passes through the J-shaped groove 17 and extends to the outside of the outer sleeve 14.

[0027] In this embodiment, the outer diameter of the lever 18 is in close contact with the inner diameter of the J-shaped groove 17 , and the support ring 16 is used to support and fix the other end of the L-shaped clamping plate 7 to prevent the L-shaped clamping plate 7 from rotating.

[0028] For details, please refer to Figure 3 and Figure 4 The inner wall of the insert ring groove 9 is provided with an insert hole 12 , and the end surface of the insert ring seat 10 is fixedly connected with a plug pin 13 , and the end of the plug pin 13 extends to the inner cavity of the insert hole 12 .

[0029] In this embodiment, the installation between the spray gun 1 and the spray gun head 3 of the spray machine is limited by the cooperation between the insertion hole 12 and the latch 13.

[0030] For details, please refer to Figure 2 and Figure 4 A sealing ring 11 is fixedly connected to the inner wall of the spray gun head 3, and the end of the installation tube 2 is fitted with the sealing ring 11.

[0031] In this embodiment, the contact between the sealing ring 11 and the mounting insert 2 prevents the paint introduced into the spray gun head 3 by the spray gun 1 of the spraying machine from leaking.

[0032] For details, please refer to Figure 3 and Figure 4 The outer diameter of the installation insert pipe 2 is equal to the inner diameter of the spray gun head 3, and the inner wall of the insert ring groove 9 and the outer side surface of the insert ring seat 10 are in contact with each other.

[0033] In this embodiment, the stability of the spray gun head 3 being mounted on the outside of the mounting tube 2 is ensured by the cooperation between the mounting tube 2 and the spray gun head 3. In addition, the sealing between the spray gun 1 and the spray gun head 3 is ensured by the fit between the inner wall of the insert ring groove 9 and the side of the insert ring seat 10.

[0034] For details, please refer to Figure 3 and Figure 4 , the outer diameter of the pin 13 is equal to the inner diameter of the socket 12.

[0035] In this embodiment, the stability of the insertion of the plug pin 13 into the inner cavity of the insertion hole 12 is ensured.

[0036] Working principle: when the spray gun head 3 needs to be replaced, first pull the lever 18 to drive the support ring 16 to shrink toward the inner cavity of the outer sliding sleeve 14, so that the support ring 16 is separated from the inner side of the tail end of the L-shaped clamping plate 7. In addition, when the lever 18 moves to one side of the J-shaped groove 17, pull the lever 18 to rotate it to slide it to the side of the J-shaped groove 17, thereby fixing the position of the lever 18 and the support ring 16 at this time, and then press the tail end of the L-shaped clamping plate 7 to rotate downward. At this time, the front end of the L-shaped clamping plate 7 is separated from the fixed clamping ring 4 on the outside of the spray gun head 3, and then pull out the spray gun head 3 at the front of the spray gun 1 of the spray machine, and insert the newly replaced spray gun head 3 into the outside of the installation plug tube 2 at the end of the spray gun 1 of the spray machine. At this time, the plug-in ring seat 10 at the end of the spray gun head 3 is inserted into the plug-in ring groove 9, and at the same time The pin 13 at the end of the plug ring seat 10 is inserted into the socket 12 to limit the installation position between the spray gun 1 and the spray gun head 3 of the spray machine. In addition, the end of the installation tube 2 is fitted with the sealing ring 11 in the inner cavity of the spray gun head 3 to ensure the connection sealing between the spray gun 1 and the spray gun head 3 of the spray machine. Finally, the L-shaped clamping plate 7 is loosened, and the restoring elastic force of the first spring 8 is used to drive the L-shaped clamping plate 7 to rotate, so that the front part of the L-shaped clamping plate 7 is again clamped into the fixed clamping ring 4 on the outside of the spray gun head 3, thereby fixing the spray gun head 3 and the spray gun 1 of the spray machine, and the lever column 18 is moved back to its original position, and the elastic force of the second spring 15 is used to drive the support ring 16 to extend into the inner side of the tail end of the L-shaped clamping plate 7 to support the inner side of the L-shaped clamping plate 7 to prevent the L-shaped clamping plate 7 from rotating.

[0037] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A quick-detachable spray head structure for a sprayer, comprising a spray gun (1), characterized in that: The end of the spray gun (1) is provided with a mounting insert (2), the outer side of the mounting insert (2) is sleeved with a spray gun head (3), the outer side of the spray gun head (3) is fixedly connected with a fixing clamp (4), the top surface and the bottom surface of the end of the spray gun (1) are respectively fixedly connected with a rotating frame (6), the inner side of the rotating frame (6) is rotatably connected with an L-shaped clamp (7), one end of the L-shaped clamp (7) extends to the outer side of the fixing clamp (4), and the end of the L-shaped clamp (7) is fixedly connected with a fixing clamp (4). The inner side surface of the L-shaped clamping plate (7) is in contact with the side surface of the fixed clamping ring (4); the inner side surface of the L-shaped clamping plate (7) is fixedly connected to a first spring (8); the end of the first spring (8) is connected to a spray gun (1); a fixing mechanism (5) is provided on the spray gun (1); an insert ring groove (9) is provided at the end of the spray gun (1); the end of the spray gun head (3) is fixedly connected to an insert ring seat (10); the end of the insert ring seat (10) extends to the inner cavity of the insert ring groove (9).

2. The quick-detachable spray head structure for a spraying machine according to claim 1, characterized in that: The fixing mechanism (5) comprises an outer sleeve (14) fixedly connected to the outside of the spray gun (1) of the coating machine, the inner wall of the outer sleeve (14) is fixedly connected to a plurality of second springs (15), the ends of the plurality of second springs (15) are fixedly connected to a support ring (16), the end of the support ring (16) extends to the inner side of the other end of the two L-shaped clamping plates (7), the inner side surface of the support ring (16) is in contact with the outer side surface of the coating machine spray gun (1), the outer side of the outer sleeve (14) is provided with two J-shaped grooves (17), the outer side of the support ring (16) is fixedly connected to a lever column (18), the end of the lever column (18) passes through the J-shaped groove (17) and extends to the outside of the outer sleeve (14).

3. The quick-detachable spray head structure for a spraying machine according to claim 1, characterized in that: The inner wall of the insert ring groove (9) is provided with an insert hole (12), the end surface of the insert ring seat (10) is fixedly connected with a plug pin (13), and the end of the plug pin (13) extends to the inner cavity of the insert hole (12).

4. The quick-detachable spray head structure for a spraying machine according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the inner wall of the spray gun head (3), and the end of the installation insert (2) is in contact with the sealing ring (11).

5. The quick-detachable spray head structure for a spraying machine according to claim 1, characterized in that: The outer diameter of the installation insert pipe (2) is equal to the inner diameter of the spray gun head (3), and the inner wall of the insert ring groove (9) and the outer side surface of the insert ring seat (10) are in close contact with each other.

6. The quick-detachable spray head structure for a spraying machine according to claim 3, characterized in that: The outer diameter of the plug pin (13) is equal to the inner diameter of the insertion hole (12).

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