Hand-buckled spray gun made of single PP (polypropylene) material

Abstract

The utility model discloses a hand-buckled spray gun made of a single PP (polypropylene) material, which relates to the technical field of spray guns and comprises a gun body assembly, and the bottom end of the gun body assembly is connected with a connecting component in a buckling manner. A spring is replaced by an S-shaped rib position in the elastic valve assembly, the S-shaped rib position has the same deformation and recovery capacity as the spring and is faster and more accurate than the deformation recovery of the spring, meanwhile, a metal valve plate is replaced by the valve plate assembly, and a sealing spherical surface can push a piston to slide inwards through a loop bar when a wrench is pressed, so that the sealing effect is improved. Air in the gun body assembly flows, the pressure intensity is reduced, the pressure intensity outside the gun body assembly is not changed, the pressure intensity difference is generated inside and outside the gun body assembly, the sealing spherical surface deforms due to suction pressure, liquid is sucked into the piston groove, and the sealing spherical surface returns immediately after suction, so that the function of the metal valve plate is achieved, and meanwhile the metal valve plate is made of plastic materials like the gun body assembly. Therefore, the whole spray gun can be made of plastic materials and is convenient to recycle.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, and in particular to a hand-operated spray gun made of a single PP material. Background Technology

[0002] Liquid pumps are widely used in daily life, such as in bottled liquid products like kitchen degreasers, shampoos, cosmetics, perfumes, and insect repellents. Liquid pump technology is more convenient, efficient, and allows for higher production volumes compared to traditional bottle opening methods. A spray gun is a common liquid pump tool that requires a liquid container and typically consists of a trigger, chamber, piston rod, and nozzle. Its working principle is based on the internal pressure of the piston, which increases the internal pressure of the liquid container by compressing the space, thus spraying liquid from the nozzle.

[0003] However, existing spray guns contain both plastic and metal internal parts. For example, the return spring is made of metal and the gun body is made of plastic. This means that the metal and plastic need to be separated during recycling, which is not conducive to recycling.

[0004] Therefore, it is necessary to invent a hand-operated spray gun made of a single PP material to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hand-operated spray gun made of a single PP material to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a single PP material hand-operated spray gun, including a gun body assembly, a connecting component snapped to the bottom end of the gun body assembly, a housing snapped onto one side of the top of the gun body assembly, a wrench provided on the bottom end of the gun body assembly away from the housing, and the top end of the wrench rotatably connected to the gun body assembly via a pin, and an external spring provided between the gun body assembly and the wrench, with the bottom end of the external spring being limited and connected to an L-shaped groove on the gun body assembly;

[0007] The gun assembly includes a gun body. A valve groove and a piston groove are respectively opened at the top and bottom of the side of the gun body away from the outer shell. A connection port is opened at the bottom of the gun body. A spring valve assembly is installed inside the valve groove. A water divider is fixedly installed at the opening of the valve groove. A cap is rotatably sleeved at the opening of the valve groove. A piston is slidably installed inside the piston groove. A sleeve rod is fixedly installed at one end of the piston, and one end of the sleeve rod is movably connected to a wrench.

[0008] The connecting component includes a large ring, and the top of the large ring is movably snapped to the bottom of the gun body. A valve plate seat assembly is provided at the top opening of the large ring. A gasket seat assembly is snapped onto the bottom of the valve plate seat assembly. A valve plate assembly is movably provided at the top opening of the valve plate seat assembly.

[0009] The spring valve assembly includes a connector, which is fixedly disposed inside the valve groove at the end away from the cap. The end of the connector away from the cap is provided with a beveled cover, and one end of the connector is sealed to the opening of the valve groove away from the cap through the beveled cover.

[0010] Preferably, the top and bottom ends of the gasket assembly are respectively movably fitted with a first gasket and a second gasket, and the top end of the first gasket is fitted and connected to the bottom end of the gun body.

[0011] Preferably, the gasket assembly includes a straight cylinder, and an extension edge is integrally formed and sleeved on the middle of the outer side wall of the straight cylinder, and the top and bottom ends of the extension edge are respectively fitted and connected to the bottom end of the first gasket and the top end of the second gasket.

[0012] Preferably, the valve seat assembly includes an inner sleeve, an outer sleeve is sleeved on the outer side of the inner sleeve, and the bottom end of the inner sleeve is integrally formed with the bottom end of the inner sidewall of the outer sleeve. A connecting sleeve is provided at the lower inner end of the inner sleeve, and the bottom end of the connecting sleeve extends to the bottom of the outer sleeve. The top end of the connecting sleeve is integrally formed with the inner sidewall of the inner sleeve.

[0013] Preferably, the valve assembly includes an outer ring, and a sealing spherical surface is provided at the lower inner end of the outer ring. An elastic rib is integrally formed on the outer side wall of the sealing spherical surface, and one end of the elastic rib is integrally formed with the inner side wall of the outer ring.

[0014] Preferably, an S-shaped rib is fixedly provided at one end of the connector near the head cap, and a plug is fixedly provided at one end of the S-shaped rib. Water outlet grooves are provided on both sides of the outer wall of the plug.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This invention replaces the spring with an S-shaped rib in the elastic valve assembly. The S-shaped rib has the same deformation and recovery capabilities as a spring, and its deformation recovery is faster and more precise. At the same time, by replacing the metal valve plate with a valve plate assembly, the sealing ball can push the piston inward through the sleeve rod when the wrench is pressed, causing the gas inside the gun assembly to flow and the pressure to decrease. The pressure outside the gun assembly remains unchanged, creating a pressure difference between the inside and outside of the gun assembly. The sealing ball deforms under suction pressure, drawing liquid into the piston groove. After being drawn in, the sealing ball immediately returns to its original position. This achieves the function of a metal valve plate while using plastic material, just like the gun assembly and other parts, allowing the entire spray gun to be made of plastic, which facilitates recycling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional exploded structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the gun body assembly structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection component structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the gasket seat assembly of this utility model.

[0021] Figure 5 This is a schematic diagram of the valve plate seat assembly of this utility model.

[0022] Figure 6 This is a schematic diagram of the valve plate assembly structure of this utility model.

[0023] Figure 7 This is a schematic diagram of the elastic valve assembly of this utility model.

[0024] In the diagram: 1. Gun body assembly; 2. Connecting component; 3. Spring valve assembly; 4. Outer shell; 5. Cap; 6. Piston; 7. Sleeve rod; 8. External spring; 9. Wrench; 10. Diverter head; 101. Gun body; 102. Valve groove; 103. Piston groove; 104. Connecting port; 201. Large ring; 202. Gasket seat assembly; 203. Valve plate seat assembly; 204. First gasket; 205. Second gasket; 206. Valve plate assembly; 2021. Straight cylinder; 2022. Extension edge; 2031. Inner locking cylinder; 2032. Outer locking cylinder; 2033. Connecting cylinder; 2061. Outer ring; 2062. Sealing spherical surface; 2063. Elastic rib; 301. Connector; 302. S-shaped rib; 303. Plug; 304. Water outlet groove. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figure 1-7 The illustrated single PP material hand-operated spray gun includes a gun body assembly 1. A connecting component 2 is snap-fitted to the bottom end of the gun body assembly 1. A housing 4 is snap-fitted to one side of the top of the gun body assembly 1. A wrench 9 is provided on the bottom end of the gun body assembly 1 away from the housing 4. The top end of the wrench 9 is rotatably connected to the gun body assembly 1 via a pin. An external spring 8 is provided between the gun body assembly 1 and the wrench 9. The bottom end of the external spring 8 is limited and connected to an L-shaped groove on the gun body assembly 1.

[0027] Furthermore, the gun assembly 1 includes a gun body 101. The top and bottom ends of the gun body 101 away from the outer casing 4 are respectively provided with a valve groove 102 and a piston groove 103. The bottom end of the gun body 101 is provided with a connection port 104. A spring valve assembly 3 is installed inside the valve groove 102. A water distributor 10 is fixedly installed at the opening of the valve groove 102. A cap 5 is rotatably sleeved at the opening of the valve groove 102. A piston 6 is slidably installed inside the piston groove 103. A sleeve rod 7 is fixedly installed at one end of the piston 6, and one end of the sleeve rod 7 is movably connected to a wrench 9.

[0028] The connecting component 2 includes a large ring 201, the top of which is movably snapped to the bottom of the gun body 101. A valve plate seat assembly 203 is provided at the top opening of the large ring 201. A gasket seat assembly 202 is snapped onto the bottom of the valve plate seat assembly 203. A valve plate assembly 206 is movably provided at the top opening of the valve plate seat assembly 203. A first gasket 204 and a second gasket 205 are movably fitted onto the top and bottom of the gasket seat assembly 202, respectively. The top of the first gasket 204 is fitted to the bottom of the gun body 101. The first gasket 204 and the second gasket 205 ensure a tight structural connection and improve sealing. The gasket seat assembly 202 includes a straight cylinder 2021. An extension edge 2022 is integrally formed and fitted onto the middle of the outer side wall of the straight cylinder 2021. The top of the extension edge 2022... The valve plate assembly 203 includes an inner sleeve 2031, an outer sleeve 2032 sleeved on the outside of the inner sleeve 2031, and the bottom end of the inner sleeve 2031 is integrally formed with the bottom end of the inner sidewall of the outer sleeve 2032. A connecting sleeve 2033 is provided at the lower end of the inner sleeve 2031, and the bottom end of the connecting sleeve 2033 extends to the bottom of the outer sleeve 2032. The top end of the connecting sleeve 2033 is integrally formed with the inner sidewall of the inner sleeve 2031. The valve plate assembly 206 includes an outer ring 2061, a sealing spherical surface 2062 is provided at the lower end of the inner ring 2061, and an elastic rib 2063 is integrally formed on the outer sidewall of the sealing spherical surface 2062. One end of the elastic rib 2063 is integrally formed with the inner sidewall of the outer ring 2061.

[0029] The spring valve assembly 3 includes a connector 301, which is fixedly disposed inside the valve groove 102 at the end away from the cap 5. The end of the connector 301 away from the cap 5 has a beveled cover, and this beveled cover seals the end of the connector 301 to the opening of the valve groove 102 away from the cap 5. An S-shaped rib 302 is fixedly disposed at the end of the connector 301 near the cap 5. The S-shaped rib 302, instead of a metal spring, not only maintains its elastic coefficient for a long time and does not affect its elasticity due to long-term deformation, but also has a long service life. A plug 303 is fixedly disposed at one end of the S-shaped rib 302. Water outlet grooves 304 are formed on both sides of the outer wall of the plug 303. Water flows through the S-shaped rib 302 in the spring valve assembly 3. The S-shaped rib 302 replaces the spring and has the same deformation and recovery capabilities as the spring, but its deformation recovery is faster and more precise. At the same time, the valve plate assembly 206 replaces the metal valve plate. When the wrench 9 is pressed, the sealing ball 2062 can push the piston 6 inward through the sleeve rod 7, causing the gas inside the gun body assembly 1 to flow and the pressure to decrease. The pressure outside the gun body assembly 1 remains unchanged, creating a pressure difference between the inside and outside of the gun body assembly 1. The sealing ball 2062 deforms under the suction pressure, allowing liquid to be drawn into the piston groove 103. After being drawn in, the sealing ball 2062 immediately returns to its original position. This achieves the function of the metal valve plate while using plastic material, just like the gun body assembly 1 and other parts, so that the entire spray gun is made of plastic, which is convenient for recycling.

[0030] Working principle of this utility model:

[0031] In use, by pressing the wrench 9, the piston 6 moves within the piston groove 103, causing gas to flow within the gun assembly 1, reducing the pressure while the pressure outside the gun assembly 1 remains unchanged. This creates a pressure difference between the inside and outside of the gun assembly 1, causing the sealing spherical surface 2062 to deform under suction pressure, drawing liquid into the piston groove 103. After suction, the sealing spherical surface 2062 immediately returns to its original position, causing the spring valve assembly 3 to deform under pressure, causing the liquid drawn into the piston groove 103 to be ejected outwards, and then immediately resetting and sealing.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-piece PP material hand-operated spray gun, characterized in that: The gun assembly includes a gun body assembly (1), a connecting component (2) is snapped to the bottom of the gun body assembly (1), a housing (4) is snapped to one side of the top of the gun body assembly (1), a wrench (9) is provided on the side of the bottom of the gun body assembly (1) away from the housing (4), and the top of the wrench (9) is rotatably connected to the gun body assembly (1) through a pin, and an external spring (8) is provided between the gun body assembly (1) and the wrench (9), and the bottom of the external spring (8) is limited to the L-shaped groove on the gun body assembly (1); The gun body assembly (1) includes a gun body (101). The top and bottom ends of the gun body (101) away from the outer shell (4) are respectively provided with a valve groove (102) and a piston groove (103). The bottom end of the gun body (101) is provided with a connection port (104). A spring valve assembly (3) is installed inside the valve groove (102). A water divider (10) is fixedly installed at the opening of the valve groove (102). A head cap (5) is rotatably sleeved at the opening of the valve groove (102). A piston (6) is slidably installed inside the piston groove (103). A sleeve rod (7) is fixedly installed at one end of the piston (6), and one end of the sleeve rod (7) is movably connected to a wrench (9). The connecting component (2) includes a large ring (201), and the top end of the large ring (201) is movably snapped to the bottom end of the gun body (101). A valve plate seat assembly (203) is provided at the top opening of the large ring (201), and a gasket seat assembly (202) is snapped to the bottom end of the valve plate seat assembly (203). A valve plate assembly (206) is movably provided at the top opening of the valve plate seat assembly (203). The spring valve assembly (3) includes a connector (301), and the connector (301) is fixedly disposed inside the valve groove (102) at one end away from the cap (5). The end of the connector (301) away from the cap (5) is provided with a sloping cover, and one end of the connector (301) is sealed to the opening of the valve groove (102) away from the cap (5) through the sloping cover.

2. The single-piece PP material hand-operated spray gun according to claim 1, characterized in that: The top and bottom ends of the gasket assembly (202) are respectively provided with a first gasket (204) and a second gasket (205), and the top end of the first gasket (204) is fitted and connected to the bottom end of the gun body (101).

3. The single-piece PP material hand-operated spray gun according to claim 2, characterized in that: The gasket assembly (202) includes a straight cylinder (2021), and an extension edge (2022) is integrally formed and sleeved on the middle of the outer side wall of the straight cylinder (2021). The top and bottom ends of the extension edge (2022) are respectively attached to the bottom end of the first gasket (204) and the top end of the second gasket (205).

4. A single PP material hand-operated spray gun according to claim 3, characterized in that: The valve seat assembly (203) includes an inner sleeve (2031), an outer sleeve (2032) is sleeved on the outside of the inner sleeve (2031), and the bottom end of the inner sleeve (2031) is integrally formed with the bottom end of the inner sidewall of the outer sleeve (2032). A connecting sleeve (2033) is provided at the lower end of the inner sleeve (2031), and the bottom end of the connecting sleeve (2033) extends to the bottom of the outer sleeve (2032). The top end of the connecting sleeve (2033) is integrally formed with the inner sidewall of the inner sleeve (2031).

5. A single PP material hand-operated spray gun according to claim 4, characterized in that: The valve assembly (206) includes an outer ring (2061), and a sealing spherical surface (2062) is provided at the lower inner end of the outer ring (2061). An elastic rib (2063) is integrally formed on the outer side wall of the sealing spherical surface (2062), and one end of the elastic rib (2063) is integrally formed with the inner side wall of the outer ring (2061).

6. A single PP material hand-operated spray gun according to claim 5, characterized in that: The connector (301) is fixedly provided with an S-shaped rib (302) at one end near the head cap (5), and a plug (303) is fixedly provided at one end of the S-shaped rib (302). Water outlet grooves (304) are provided on both sides of the outer wall of the plug (303).

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