CN220435449U

CN220435449U - Screw valve core

Info

Publication number: CN220435449U
Application number: CN202320819699.9U
Authority: CN
Inventors: 余颖泉
Original assignee: Jiangmen Meijianlian Metal Products Co ltd
Current assignee: Jiangmen Meijianlian Metal Products Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2024-02-02
Anticipated expiration: 2033-04-13

Abstract

The utility model relates to the field of control valves, in particular to a screw valve core. The screw valve core comprises a shell, wherein a valve rod is arranged in the shell, a sealing part is arranged at the bottom of the valve rod, and the shell is integrally formed. The screw valve core provided by the utility model has the advantages of simple shell structure and convenience in production and processing.

Description

Screw valve core

Technical Field

The utility model relates to the field of control valves, in particular to a screw valve core.

Background

The valve element is a part of the valve body that performs the basic functions of directional control, pressure control or flow control by means of its movement.

For example, patent document publication number CN207278901U discloses a screw lifting type diving valve core. The valve core is connected with a rubber sealing ring, and when the diving valve core is in a closed state, the rubber sealing ring is contacted with water in the valve body. In the above technology, the valve core is divided into the upper base and the lower base, and as can be seen from the specification and the drawing, the upper base and the lower base are separately arranged, and the structure is relatively complex. Moreover, the gland nut is required to work in a matched mode, and the installation, the replacement and the maintenance are very inconvenient.

For this purpose, a screw valve core is proposed to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to: the screw valve core is simple in shell structure.

The utility model adopts the technical scheme that: a screw spool, comprising: the shell, be equipped with the valve rod in the shell, the bottom of valve rod is equipped with sealing portion, shell integrated into one piece, the structure is succinct.

As a further improvement of the technical scheme, the valve rod is in threaded connection with the shell, the shell comprises a water outlet cavity, a plurality of water outlet holes communicated with the water outlet cavity are formed in the shell, the bottom of the shell is a water inlet, and the top of the sealing part is dynamically sealed with the water inlet.

As a further improvement of the technical scheme, a first mounting groove is formed in the valve rod, a first sealing ring is arranged in the first mounting groove, and the first sealing ring is movably and hermetically connected with the inner wall of the shell.

As a further improvement of the technical scheme, the upper part and the lower part of the shell are provided with second mounting grooves, and second sealing rings are arranged in the second mounting grooves.

As a further improvement of the technical scheme, the sealing part comprises a supporting seat, a sealing gasket is arranged at the top of the supporting seat, the supporting seat and the sealing gasket are both sleeved at the lower part of the valve rod, and the sealing gasket is arranged at the top of the supporting seat.

As a further improvement of the technical scheme, the valve rod is provided with the boss, the top of the sealing gasket is provided with the groove, and the groove is matched with the boss, so that the sealing gasket can be limited.

As a further improvement of the above technical solution, the sealing portion further includes a threaded cap, the threaded cap is in threaded connection with the valve stem, and the top of the threaded cap abuts against the supporting seat.

The beneficial effects of the utility model are as follows: the shell integrated into one piece, the structure is succinct, is convenient for production and processing and installation. The user can conveniently replace and maintain the device after using the device.

Drawings

The utility model is further illustrated by the following description and examples of the embodiments in conjunction with the accompanying drawings.

FIG. 1 is a schematic view of a preferred embodiment of the present utility model;

FIG. 2 is a perspective exploded view of the device shown in FIG. 1;

FIG. 3 is a schematic elevational view of the present utility model;

FIG. 4 is a schematic cross-sectional view of the structure A-A shown in FIG. 3.

In the figure: 1. a housing; 11. a water outlet cavity; 12. a water outlet hole; 13. a second mounting groove; 14. a second seal ring; 2. a valve stem; 21. a first mounting groove; 22. a first seal ring; 23. a boss; 3. a sealing part; 31. a support base; 32. a sealing gasket; 33. a threaded cap; 34. a groove.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, a screw type valve cartridge includes: the novel valve is characterized in that the shell 1 is internally provided with the valve rod 2, the bottom of the valve rod 2 is provided with the sealing part 3, the shell 1 is integrally formed, and the structure is concise.

The valve rod 2 is in threaded connection with the shell 1, the shell 1 comprises a water outlet cavity 11, a plurality of water outlet holes 12 are formed in the inner wall of the water outlet cavity 11, the bottom of the shell 1 is a water inlet, and the top of the sealing part 3 is dynamically sealed with the water inlet.

The valve rod 2 is provided with a first mounting groove 21, a first sealing ring 22 is mounted in the first mounting groove 21, and the first sealing ring 22 is movably and hermetically connected with the inner wall of the shell 1. The first sealing ring 22 prevents liquid from passing through the gap between the housing 1 and the valve stem 2 when the valve stem 2 moves within the housing 1.

The upper part and the lower part of the shell 1 are respectively provided with a second mounting groove 13, and a second sealing ring 14 is arranged in the second mounting groove 13.

The sealing part 3 comprises a supporting seat 31, the supporting seat 31 is slidably sleeved at the bottom of the valve rod 2, a sealing gasket 32 is arranged at the top of the supporting seat 31, and when the valve core is closed, the sealing gasket 32 is in butt joint with the bottom of the shell 1 for sealing. When the water pressure is higher, the water outside the sealing portion 3 can press the gasket 32 against the bottom of the housing 1, and the tightness of the screw valve element when the valve is closed is ensured.

The valve rod 2 is provided with the boss 23, the top of the sealing gasket 32 is provided with the groove 34, the groove 34 is matched with the boss 23, the boss 23 is used for crimping the sealing gasket 32 on the top of the supporting seat 31, and the sealing gasket 32 can be prevented from loosening relative to the valve rod 2.

The sealing part 3 further comprises a threaded cap 33, the threaded cap 33 is in threaded connection with the valve rod 2, the top of the threaded cap 33 is abutted against the supporting seat 31, and the heights of the supporting seat 31 and the sealing gasket 32 can be adjusted through the threaded cap 33, so that when the valve core is closed, the sealing gasket 32 can be tightly contacted with the shell 1, and the sealing effect is ensured.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. The utility model provides a screw type case, shell (1), be equipped with valve rod (2) in shell (1), the bottom of valve rod (2) is equipped with sealing (3), its characterized in that:

the shell (1) is integrally formed;

the valve rod (2) is in threaded connection with the shell (1), the shell (1) comprises a water outlet cavity (11), a plurality of water outlet holes (12) communicated with the water outlet cavity (11) are formed in the shell (1), the bottom of the shell (1) is a water inlet, and the top of the sealing part (3) is dynamically sealed with the water inlet;

the sealing part (3) comprises a supporting seat (31), a sealing gasket (32) is arranged at the top of the supporting seat (31), the supporting seat (31) and the sealing gasket (32) are sleeved at the lower part of the valve rod (2), and when the valve core is closed, the sealing gasket (32) is in butt joint with the bottom of the shell (1).

2. A screw valve cartridge according to claim 1, wherein:

the valve rod (2) is provided with a first mounting groove (21), a first sealing ring (22) is mounted in the first mounting groove (21), and the first sealing ring (22) is movably and hermetically connected with the inner wall of the shell (1).

3. A screw valve cartridge according to claim 2, wherein:

the upper part and the lower part of the shell (1) are respectively provided with a second mounting groove (13), and a second sealing ring (14) is arranged in the second mounting groove (13).

4. A screw valve cartridge according to claim 1, wherein:

be equipped with boss (23) on valve rod (2), the top of sealed pad (32) is equipped with recess (34), recess (34) and boss (23) adaptation.

5. The screw spool as set forth in claim 4, wherein:

the sealing part (3) further comprises a threaded cap (33), the threaded cap (33) is in threaded connection with the valve rod (2), and the top of the threaded cap (33) is abutted with the supporting seat (31).