A valve

Abstract

The utility model proposes a valve, including: a bowl body, which is a bowl-shaped structure including a first annular side and a first bottom; a valve stem, which includes a tube body with a central hole and a seat body, wherein one end of the central hole is open and the other end is blocked by the seat body, and a lateral opening is provided on one side of the tube body close to the seat body; a sealing plug, which is sealingly sleeved on the tube body; a sealing cup, which is a cup-shaped structure including a second annular side and a second bottom, wherein the top of the second annular side has a first annular groove, and the center of the second bottom has a mounting hole, which is composed of a first mounting hole section and a second mounting hole section, wherein an annular seal is formed between the inner wall of the first mounting hole section and the outer wall of the top of the bowl body, and an annular seal is formed between the second mounting hole section and the outer wall of the sealing plug. The structural design of the utility model ensures that the sealing of the internal space of the bowl body is independent of the sealing of the tank mouth, thereby avoiding the problem of sealing failure of the internal space of the sealing bowl due to looseness at the tank mouth.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve. Background Art

[0002] For valves, the sealing of the internal space of the spray bowl is crucial to the discharge effect. At present, the sealing surface of the spray bowl of traditional valves is basically at the sealing surface of the sealing cup for contact with the can mouth. When in use, the port edge of the spray bowl is pressed between the can mouth and the sealing cup through the sealing cup to form a seal, such as a positive spray type PU valve for foam (patent number CN201710707488.5). This sealing method makes the seal of the spray bowl lose its effect once the can mouth is loose, especially for some spray bowls whose sealing surface is on the inner wall of the can mouth. When the sealing surface loses its effect, the material in the can can no longer enter the spray bowl smoothly, and other materials in the can may enter the spray bowl from the sealing surface. When the valve is opened, the gas in the can is sprayed out. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a valve.

[0004] The utility model provides a valve, comprising:

[0005] The bowl body is a bowl-shaped structure including a first annular side portion and a first bottom portion, and a guide hole is provided at the center of the first bottom portion;

[0006] The valve stem comprises a tube body portion having a central hole and a seat body portion connected to the end of the tube body and located in the bowl body, wherein one end of the central hole is open and the other end is blocked by the seat body portion, and at least one lateral opening communicating with the central hole is provided on one side of the tube body portion close to the seat body portion;

[0007] A sealing plug, the sealing plug is sealingly sleeved on the pipe body;

[0008] The sealing cup is a cup-shaped structure including a second annular side portion and a second bottom portion. The top end of the second annular side portion is folded outward to form a first annular groove that can be assembled to an open portion of a container. The center of the second bottom portion has a mounting hole that passes through the second bottom portion. The mounting hole consists of a first mounting hole section and a second mounting hole section. An annular seal is formed between the inner wall of the first mounting hole section and the outer wall of the top end of the bowl body, and an annular seal is formed between the second mounting hole section and the outer wall of the sealing plug.

[0009] Preferably, a first annular protrusion is provided on the outer side wall of the top end of the bowl body, and an annular groove is provided on the first mounting hole section, and the first annular protrusion is adapted in the annular groove.

[0010] Preferably, the annular groove body is formed by inwardly extruding the outer wall of the first hole section located below the first annular protrusion.

[0011] Preferably, the valve stem has a second annular groove adapted to install a sealing plug.

[0012] Preferably, the outer wall of the sealing plug has a second annular protrusion which forms an annular abutment with the top wall of the second bottom at the second mounting hole section.

[0013] Preferably, the inner wall of the bowl body is provided with reinforcing ribs.

[0014] Preferably, a drainage tube is connected to the flow guide hole of the bowl body.

[0015] Preferably, the sealing cup is formed by pressing a thin-walled plate.

[0016] In the utility model, the sealing cup is a cup-shaped structure including a second annular side portion and a second bottom portion. The top end of the second annular side portion is folded outward to form a first annular groove that can be assembled to the opening of a container. The center of the second bottom portion has a mounting hole that penetrates the second bottom portion. The mounting hole is composed of a first mounting hole section and a second mounting hole section. An annular seal is formed between the inner wall of the first mounting hole section and the outer wall of the top end of the bowl body. The second mounting hole section and the outer wall of the sealing plug form an annular seal, so that the inside of the bowl body forms a closed sealed space. The first annular groove is assembled to the opening of the container to form a seal for the container jar mouth. The structural design of the valve ensures that the sealing of the internal space of the bowl body is independent of the sealing of the jar mouth, thereby avoiding the problem of failure of the sealing of the internal space of the sealing bowl due to looseness at the jar mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a valve proposed by the utility model;

[0018] Figure 2 This is a structural schematic diagram of a sealing plug in a valve proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the working principle of a valve. DETAILED DESCRIPTION

[0020] Reference Figure 1 The utility model provides a valve, comprising:

[0021] Bowl body 1, bowl body 1 is a bowl-shaped structure including a first annular side portion 11 and a first bottom portion 12, and a flow guide hole is provided at the center of the first bottom portion 12. Valve stem 2, valve stem 2 includes a tube body 21 with a central hole and a seat body portion 22 connected to the end of the tube body 21 and located in the bowl body 1, one end of the central hole is open and the other end is blocked by the seat body portion 22, and at least one lateral opening connected to the central hole is provided on the side of the tube body 21 close to the seat body portion 22; sealing plug 3, sealing plug 3 is sealingly sleeved on the tube body 21.

[0022] The sealing cup 4 is a cup-shaped structure including a second annular side portion 41 and a second bottom portion 42. The top of the second annular side portion 41 is folded outward to form a first annular groove 5 that can be assembled to the opening of a container. The center of the second bottom portion 42 has a mounting hole that penetrates the second bottom portion 42. The mounting hole is composed of a first mounting hole section and a second mounting hole section. An annular seal is formed between the inner wall of the first mounting hole section and the outer wall of the top of the bowl body 1, and an annular seal is formed between the second mounting hole section and the outer wall of the sealing plug 3. So that a closed sealed space is formed inside the bowl body 1, and the first annular groove 5 is assembled to the opening of the container to form a seal on the container jar mouth. The structural design of the valve ensures that the sealing of the internal space of the bowl body 1 is independent of the sealing of the jar mouth, thereby avoiding the problem of failure of the sealing of the internal space of the sealing bowl due to looseness at the jar mouth.

[0023] Reference Figure 2 When working, the valve stem 2 is pressed down to open the valve, and the liquid in the container enters the bowl body 1 through the guide hole at the bottom of the bowl body 1, enters the inside of the valve stem 2 through the lateral opening on the side wall of the valve stem 2, and is sprayed out from the top of the valve stem 2; the valve stem 2 is released, so that the valve stem 2 automatically resets with the help of the sealing plug 3, and the valve is closed.

[0024] In a further embodiment, a first annular protrusion 13 is provided on the outer wall of the top end of the bowl body 1, and an annular groove is provided on the first mounting hole section. The first annular protrusion 13 is adapted in the annular groove to form an assembly of the bowl body 1 and the sealing cup 4.

[0025] Specifically, the annular groove body is formed by extruding the outer wall of the first hole section below the first annular protrusion 13 inwardly, so as to form an extrusion toward the inner side of the bowl body 1, thereby improving the stability of the assembly.

[0026] In a further embodiment, the valve stem 2 has a second annular groove 6 adapted to install the sealing plug 3 , and the sealing plug 3 is assembled in the second annular groove 6 to form an assembly between the sealing plug 3 and the valve stem 2 .

[0027] In a further embodiment, the outer wall of the sealing plug 3 has a second annular protrusion 7 that forms an annular abutment with the top wall of the second bottom 42 at the second mounting hole section, and the second annular protrusion 7 is used to limit the top of the second mounting hole section.

[0028] In a further embodiment, a reinforcing rib 8 is provided on the inner wall of the bowl body 1 to enhance the strength of the bowl body 1 .

[0029] In a further embodiment, a drainage tube 9 is connected to the flow guide hole of the bowl body 1 , and when the valve is opened, the material in the container is guided into the bowl body 1 through the drainage tube 9 and discharged from the top of the valve stem 2 .

[0030] In a further embodiment, the sealing cup 4 is formed by pressing a thin-walled plate.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A valve, characterized in that: include: A bowl body (1), the bowl body (1) is a bowl-shaped structure comprising a first annular side portion (11) and a first bottom portion (12), and a flow guide hole is provided at the center of the first bottom portion (12); The valve stem (2) comprises a tube body (21) having a central hole and a seat body (22) connected to the end of the tube body (21) and located in the bowl body (1), one end of the central hole is open and the other end is blocked by the seat body (22), and at least one lateral opening communicating with the central hole is formed on one side of the tube body (21) close to the seat body (22); A sealing plug (3), the sealing plug (3) is sealingly sleeved on the tube body (21); The sealing cup (4) is a cup-shaped structure including a second annular side portion (41) and a second bottom portion (42). The top end of the second annular side portion (41) is folded outward to form a first annular groove (5) that can be assembled to an open portion of a container. The center of the second bottom portion (42) has a mounting hole that passes through the second bottom portion (42). The mounting hole consists of a first mounting hole section and a second mounting hole section. An annular seal is formed between the inner wall of the first mounting hole section and the outer wall of the top end of the bowl body (1), and an annular seal is formed between the second mounting hole section and the outer wall of the sealing plug (3).

2. The valve according to claim 1, characterized in that: A first annular protrusion (13) is provided on the outer side wall of the top end of the bowl body (1), and an annular groove body is provided on the first mounting hole section, and the first annular protrusion (13) is adapted in the annular groove body.

3. The valve according to claim 2, characterized in that: The annular groove body is formed by inwardly extruding the outer wall of the first hole section located below the first annular protrusion (13).

4. The valve according to claim 3, characterized in that: The valve stem (2) is provided with a second annular groove (6) adapted to install the sealing plug (3).

5. The valve according to claim 3, characterized in that: The outer wall of the sealing plug (3) is provided with a second annular protrusion (7) which forms an annular abutment with the top wall of the second bottom (42) at the second mounting hole section.

6. The valve according to claim 1, characterized in that The inner wall of the bowl body (1) is provided with reinforcing ribs (8).

7. The valve according to claim 1, characterized in that A drainage pipe (9) is connected to the drainage hole of the bowl body (1).

8. The valve according to claim 7, characterized in that The sealing cup (4) is formed by pressing a thin-walled plate.

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