40k overflow hand-held spray gun

Abstract

The utility model relates to the technical field of hopper, and disclose a 40k overflow handheld spray gun, including gun tube subassembly and gun body subassembly, the tail end of gun tube and the front end of gun body are installed together, its characterized in that: the rear end of gun body is equipped with high pressure inlet pipe, and high pressure water flow is input to the gun body through high pressure inlet pipe and sprays out, provides liquid flow force. The 40k overflow handheld spray gun is used through handheld operation, reduces the equipment weight component, greatly increases its practicability.

Description

Technical Field

[0001] This utility model relates to the field of overflow handheld spray gun technology, specifically a 40k overflow handheld spray gun. Background Technology

[0002] An overflow gun is a technical device that achieves specific functions by controlling the flow direction and pressure of fluids (such as water, gas, or other liquids). Its core design includes an overflow valve, a high-pressure valve core, and a fluid passage. It can spray fluid from the nozzle under high pressure or release pressure through the overflow pipe, thereby achieving cleaning, pressure regulation, or other industrial applications. Existing technologies suffer from low cleaning efficiency and heavy equipment. Therefore, it is important to invent a 40k overflow handheld spray gun to solve the problems of low cleaning efficiency and heavy equipment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a 40k overflow handheld spray gun, which has advantages such as reducing the physical exertion caused by personnel handling and solving the problem of low cleaning efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a 40k overflow handheld spray gun, comprising a barrel assembly and a gun body assembly, wherein the end of the barrel and the front end of the gun body are installed together, characterized in that: a high-pressure water inlet pipe is provided at the rear end of the gun body, and high-pressure water is input into the gun body through the high-pressure water inlet pipe and sprayed outward, providing liquid flow power.

[0005] Preferably, the barrel assembly includes a high-pressure water outlet pipe, a screw thread, a nut, a barrel body, a locking block, and a valve seat. The front end of the high-pressure water outlet pipe is threaded, and a nut is rotated onto the outer end of the thread. The nut is connected to the screw thread. The end of the barrel is threaded. The barrel body of the high-pressure water outlet pipe passes through a hole at the lower end of the locking block and connects to the valve seat. The nut at the end of the barrel is connected to the valve seat. The assembly also includes a pressure relief water outlet pipe, an internal hex screw, and a locking block. The end of the pressure relief water outlet pipe is threaded and connected to the locking block via the thread.

[0006] Preferably, the valve seat assembly is provided from top to bottom as follows: a gun core positioning nut, an O-ring, a valve core sealing assembly, a valve core, a first spring, a valve stem, and a valve seat. The gun core positioning nut is threadedly connected to the valve seat. An O-ring is fitted on the lower end of the gun core positioning nut. The first spring is fitted on the outer circumference of the valve stem. The upper end of the valve stem is assembled with the valve core. Both the upper and lower ends of the valve core are provided with valve core sealing assemblies, and the upper end of the valve core is provided with a valve core sealing assembly.

[0007] Preferably, the lower end of the gun core positioning nut is provided with an external thread, the upper end of the valve seat is provided with an internal thread, the bottom end of the gun core positioning nut is provided with several through holes, the valve core is provided with several holes, the end of the handheld spray gun is connected to the gun stock through a gun stock support rod, the rear end of the gun stock is provided with a gun stock sleeve, and the high-pressure water outlet pipe is provided with a support handle at the center.

[0008] Preferably, the grip assembly includes a gun shell, a first positioning pin, a positioning buckle, a transmission sleeve, a pin guide sleeve, a second spring, a gun trigger, a second positioning pin, a third positioning pin, a fourth positioning pin, and a limit block. The valve seat is fixed to the upper end of the gun shell by an internal hex screw. The side end of the gun shell is provided with a positioning pin, which is fixed and positioned by the first positioning pin. There are two positioning buckles, and both the upper and lower ends of the positioning buckles are provided with holes. A pin guide sleeve is installed inside the transmission sleeve. Positioning buckles are provided on both sides of the transmission sleeve. The upper and lower holes of the positioning buckles are provided with second positioning pins.

[0009] Preferably, a second spring is provided on the outer side of the pin guide sleeve, and the pin guide sleeve passes through the large hole in the middle of the trigger mechanism.

[0010] Preferably, the fourth positioning pin passes through the limiting block, the fourth spring, and the fixing block in sequence. The limiting block rotates around the positioning pin and is limited by the fourth spring.

[0011] Preferably, a fixing block is fixed inside the gun casing, and the ends and bottom of the fixing block are fixed by hexagonal screws to limit the fixing block.

[0012] Preferably, the third positioning pin passes through the stop buckle, the third spring, and the trigger in sequence. The stop buckle has holes on both sides, the third positioning pin passes through the holes in the stop buckle, the guide sleeve passes through the holes in the trigger, and the guide sleeve has third springs on both sides.

[0013] Compared with the prior art, the present invention provides a 40k overflow handheld spray gun, which has the following beneficial effects: the 40k overflow handheld spray gun is operated by hand, which reduces the weight of the equipment components and greatly increases its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the state structure of the grip assembly of this utility model; Figure 2 This is a schematic diagram of the state structure of the gun barrel of this utility model; Figure 3 This is a schematic diagram of the valve seat structure of this utility model; Figure 4 This is a schematic diagram of the structure of the gunstock of this utility model.

[0015] The components include: 1. Screw thread; 2. Nut; 3. High-pressure water outlet pipe; 4. Pressure relief water outlet pipe; 5. Hex socket screw; 6. Locking block; 7. Gun core positioning nut; 8. Valve core; 9. Valve stem; 10. First spring; 11. Valve core sealing assembly; 12. Valve seat; 13. Hex socket screw; 14. Gunstock support rod; 15. High-pressure water inlet pipe; 16. Gunstock sleeve; 17. Gun casing; 18. First positioning pin; 19. Positioning buckle; 20. Transmission sleeve; 21. Pin guide sleeve; 22. Second spring; 23. Pin guide sleeve; 24. Gun trigger; 25. Second positioning pin; 26. Stop buckle; 27. Third spring; 28. Third positioning pin; 29. ​​Limiting block; 30. Fourth spring; 31. Fourth positioning pin; 32. O-ring; 33. Flat head screw; 34. Fixing block; 35. Protective sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Please see Figure 1-4 A 40k overflow handheld spray gun includes a barrel assembly and a gun body assembly. The end of the barrel and the front end of the gun body are installed together. The gun body is characterized by having a high-pressure water inlet pipe 15 at the rear end. High-pressure water is input into the gun body through the high-pressure water inlet pipe 15 and sprayed outward, providing liquid flow power.

[0019] The gun barrel assembly includes a high-pressure water outlet pipe 3, a screw thread 1, a nut 2, a gun body, a locking block 6, and a valve seat 12. The front end of the high-pressure water outlet pipe 3 is threaded, and a nut 2 rotates onto the outer end of the thread. The nut 2 is connected to the screw thread 1. The end of the gun barrel is threaded. The gun body of the high-pressure water outlet pipe 3 passes through a hole at the lower end of the locking block 6 and connects to the valve seat 12. The nut 2 at the end of the gun barrel is connected to the valve seat 12. The end of the pressure relief outlet pipe 4 is threaded and connected to the locking block 6 via the thread. The gun core positioning nut 7 is threaded together with the valve seat 12. An O-ring 33 is fitted on the lower end of the gun core positioning nut 7. The first spring 10 is fitted on the outer circumference of the valve stem 9. The upper end of the valve stem 9 is assembled with the valve core 8. Both the upper and lower ends of the valve core 8 are provided with valve core sealing assemblies 11, and the upper end of the valve core 8 is provided with a valve core sealing assembly 11. As shown in the figure, the lower end of the gun core positioning nut 7 is provided with an external thread, the upper end of the valve seat 12 is provided with an internal thread, the bottom end of the gun core positioning nut 7 is provided with several through holes, the valve core 8 is provided with several holes, the end of the handheld spray gun is connected to the gun stock 16 via a gun stock support rod 14, the rear end of the gun stock 16 is provided with a gun stock sleeve 17, and a support handle is provided at the center of the high-pressure outlet pipe 3.

[0020] The valve seat 12 is fixed to the upper end of the gun housing 18 by an internal hex screw. A locating pin is provided on the side end of the gun housing 18, and it is fixed and positioned by a first locating pin 19. Two locating buckles 20 are provided, each with holes at both its upper and lower ends. A pin guide sleeve is installed inside the transmission sleeve 21. Locating buckles 20 are provided on both sides of the transmission sleeve 21, and a second locating pin 26 is provided in each of the upper and lower holes of the locating buckle 20. A second spring 23 is provided on the outer side of the pin guide sleeve, and the pin guide sleeve 22 passes through the large hole in the middle of the trigger mechanism. The fourth positioning pin 32 passes through the limiting block 30, the fourth spring 31 and the fixing block 35 in sequence. The limiting block 30 rotates around the positioning pin and is limited by the fourth spring 31.

[0021] A fixing block 35 is fixed inside the gun casing 18. The end and bottom of the fixing block 35 are fixed by hexagonal screws, which limit the position of the fixing block 35.

[0022] The third positioning pin 29 passes through the stop buckle 27, the third spring 28 and the trigger 25 in sequence. As shown in the figure, the stop buckle 27 has holes on both sides. The third positioning pin 29 passes through the hole of the stop buckle 27. The guide sleeve passes through the hole on the trigger 25. The guide sleeve has a third spring 28 on both sides.

[0023] Working principle: The handheld overflow gun has two working states: non-working (overflow) and working. Switching between these states is achieved by controlling the valve core's movement via the handle. 1. Non-operating state (atmospheric pressure overflow) When the gun handle is not operated (trigger not pressed), the high-pressure valve core is in the closed state, cutting off the water path to the high-pressure gun barrel.

[0024] At this point, the incoming liquid (usually water) flows directly through the high-pressure valve core and overflow rod back to the water source, achieving "overflow under normal pressure" and avoiding meaningless accumulation of system pressure.

[0025] 2. Operating status (high-pressure injection) After pressing the trigger on the gun handle, the mechanical structure drives the high-pressure valve core to open, blocking the overflow channel.

[0026] High-pressure water flows through the main pipe reducer and main pipe connecting rod into the high-pressure valve core, and then is sprayed out at high speed from the nozzle through the high-pressure gun rod to clean the target surface.

[0027] The system pressure can reach 1500-2000 kg during operation. It needs to be used with an ultra-high pressure cleaner. The gun stock is ergonomically designed to reduce the burden on operators.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 40k overflow handheld spray gun, comprising a barrel assembly and a gun body assembly, wherein the end of the barrel and the front end of the gun body are mounted together, characterized in that: The gun body has a high-pressure water inlet pipe at its rear end. High-pressure water is input into the gun body through the high-pressure water inlet pipe and sprayed outward, providing liquid flow power. The gun barrel assembly includes a high-pressure water outlet pipe, a screw thread, a nut, a gun body, a locking block, and a valve seat. The front end of the high-pressure water outlet pipe is threaded, and a nut is rotated at the outer end of the thread. The nut is connected to the screw thread. The end of the gun barrel is threaded. The gun body of the high-pressure water outlet pipe passes through the hole at the lower end of the locking block and connects to the valve seat. The nut at the end of the gun barrel is connected to the valve seat. The gun also includes a pressure relief water outlet pipe, an internal hex screw, and a locking block. The end of the pressure relief water outlet pipe is threaded and connected to the locking block through the thread.

2. The 40k overflow handheld spray gun according to claim 1, characterized in that: The valve seat assembly consists of, from top to bottom, a gun core positioning nut, an O-ring, a valve core sealing assembly, a valve core, a first spring, a valve stem, and a valve seat. The gun core positioning nut is threadedly connected to the valve seat. An O-ring is fitted onto the lower end of the gun core positioning nut. The first spring is fitted onto the outer circumference of the valve stem. The upper end of the valve stem is assembled with the valve core. Both the upper and lower ends of the valve core are provided with valve core sealing assemblies, with the upper end of the valve core also having a valve core sealing assembly.

3. A 40k overflow handheld spray gun according to claim 2, characterized in that: The lower end of the gun core positioning nut is provided with an external thread, the upper end of the valve seat is provided with an internal thread, the bottom end of the gun core positioning nut is provided with several through holes, the valve core is provided with several holes, the end of the handheld spray gun is connected to the gun stock through a gun stock support rod, the rear end of the gun stock is provided with a gun stock sleeve, and the center position of the high-pressure water outlet pipe is provided with a support handle.

4. A 40k overflow handheld spray gun according to claim 2, characterized in that: The grip assembly includes a gun housing, a first positioning pin, a positioning buckle, a transmission sleeve, a pin guide sleeve, a second spring, a trigger, a second positioning pin, a third positioning pin, a fourth positioning pin, and a limit block. The valve seat is fixed to the upper end of the gun housing by an internal hex screw. The side end of the gun housing is provided with a positioning pin, which is fixed and positioned by the first positioning pin. There are two positioning buckles, and both the upper and lower ends of the positioning buckles are provided with holes. A pin guide sleeve is installed inside the transmission sleeve. Positioning buckles are provided on both sides of the transmission sleeve. The upper and lower holes of the positioning buckles are provided with second positioning pins.

5. A 40k overflow handheld spray gun according to claim 4, characterized in that: A second spring is provided on the outside of the pin guide sleeve, and the pin guide sleeve passes through the large hole in the middle of the trigger mechanism.

6. A 40k overflow handheld spray gun according to claim 5, characterized in that: The fourth positioning pin passes through the limiting block, the fourth spring, and the fixing block in sequence. The limiting block rotates around the positioning pin and is limited by the fourth spring.

7. A 40k overflow handheld spray gun according to claim 5, characterized in that: A fixing block is fixed inside the gun casing. The ends and bottom of the fixing block are fixed with hexagonal screws, which limit the position of the fixing block.

8. A 40k overflow handheld spray gun according to claim 5, characterized in that: The third positioning pin passes through the stop buckle, the third spring, and the trigger in sequence. The stop buckle has holes on both sides. The third positioning pin passes through the hole in the stop buckle. The guide sleeve passes through the hole in the trigger. The guide sleeve has a third spring on both sides.

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