CN216618588U

CN216618588U - Vacuum bellows valve

Info

Publication number: CN216618588U
Application number: CN202123395658.1U
Authority: CN
Inventors: 翁鹏斌; 郑委委; 聂敏; 黄文博
Original assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Current assignee: Kunshan Kinglai Hygienic Materials Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-27
Anticipated expiration: 2031-12-30

Abstract

The utility model belongs to the technical field of valve equipment, and discloses a vacuum bellows valve which comprises a first valve cover, a valve rod, a bellows, a second valve cover, a valve rod head, a valve seat and a valve body, wherein the lower end of the first valve cover is fixedly extruded at the upper end of the valve body, the lower end of the valve rod is fixedly arranged at the upper end of the valve rod head, the bellows is sleeved on the outer wall of the valve rod in a sliding manner, the upper end of the bellows is fixedly connected to the upper end of the valve rod, the lower end of the bellows is fixedly connected to the inner wall of the lower end of the first valve cover, the inner wall of the upper part of the second valve cover is extruded at the outer wall of the lower part of the first valve cover, the inner wall of the lower part of the second valve cover is installed on the outer wall of the upper part of the valve body in a threaded manner, the upper end of the valve rod head is fixedly connected to the lower end of the valve rod in a threaded manner, and the upper part of the valve seat is fixedly embedded in the inner wall of the valve rod head. The utility model can improve the sealing performance of the water valve and better meet the use requirement.

Description

Vacuum bellows valve

Technical Field

The utility model belongs to the technical field of valve equipment, and particularly relates to a vacuum bellows valve.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, and adjusting and controlling the parameters of temperature, pressure and flow of a conveying medium. According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like.

The conventional valve rod pushes the valve rod head to be applied downwards, so that the valve seat and the valve body form sealing, the valve seat and the valve body circularly move for a long time, the sealing surface of the valve seat deforms, the requirement on the internal sealing can not be met, and the working pressure is reduced. There is therefore a need for a solution that alleviates the above problems.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a vacuum bellows valve that solves the problems set forth in the background above.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a vacuum bellows valve, includes first valve gap, valve rod, bellows, second valve gap, valve rod head, disk seat and valve body, the upper end at the valve body is fixed in the lower extreme extrusion of first valve gap, the lower extreme fixed mounting of valve rod is in the upper end of valve rod head, bellows sliding sleeve is at the valve rod outer wall, and the upper end fixed connection of bellows is in the upper end of valve rod, the lower extreme fixed connection of bellows is at the lower extreme inner wall of first valve gap, the upper portion inner wall extrusion of second valve gap is at the lower part outer wall of first valve gap, the upper portion outer wall at the valve body is installed to the lower part inner wall screw thread of second valve gap, the upper end screw thread fixed connection of valve rod head is at the lower extreme of valve rod, the inner wall at the valve rod head is fixed in the upper portion scarf joint of disk seat, the lower extreme of disk seat matches with the sealed extrusion of the inner wall of valve body.

Preferably, the upper end of the first valve cover is fixedly provided with a motor, and the motor telescopic rod is fixedly connected to the upper end of the valve rod.

Preferably, the upper part of the valve body is embedded with a sealing gasket, and the sealing gasket is fixedly arranged on the inner wall of the upper part of the valve body.

Preferably, the lower ends of the first valve cover and the corrugated pipe are fixedly connected with welding rings, and the lower ends of the welding rings are extruded on the upper wall of the sealing gasket.

Preferably, the lower end of the valve seat is fixedly connected with a table-shaped extrusion head.

Preferably, the inner cavity of the valve body is provided with a platform-shaped groove, and the inner wall of the platform-shaped groove is matched with the outer wall of the platform-shaped extrusion head in a sealing and extruding manner.

Compared with the prior art, the utility model has the following beneficial effects:

1. adopt the bellows to keep apart the mode in space inside and outside the first valve gap, ensured the waterproof nature in space inside the first valve gap.

2. The valve rod and the valve rod head are connected into a whole in a threaded mode, the valve rod drives the valve seat to move to form sealing with the valve body, the conical sealing surface of the valve seat improves the sealing performance of the valve, and the service life of the valve is prolonged.

3. The table-shaped extrusion head is matched with the table-shaped structure of the table-shaped groove, so that the pressing sealing performance of the outer wall of the table-shaped extrusion head on the inner wall of the table-shaped groove is guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a first type of valve seat according to the present invention;

FIG. 3 is a schematic view of a second type of valve seat according to the present invention;

fig. 4 is a schematic structural diagram of the valve body of the present invention.

In the figure: 1. a motive machine; 2. a first valve cover; 3. a valve stem; 4. a bellows; 5. a second valve cover; 6. welding a ring; 7. sealing gaskets; 8. a valve stem head; 9. a valve seat; 10. a valve body; 11. a table-shaped extrusion head; 12. a mesa groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., indicate orientations or positional relationships according to those shown in the drawings, are only for convenience of description and simplicity of description, and are used to enhance the connection between the description and the drawings and to increase the clarity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In a first embodiment, please refer to fig. 1, 3, and 4, a vacuum bellows valve includes a first valve cover 2, a valve rod 3, a bellows 4, a second valve cover 5, a valve rod head 8, a valve seat 9, and a valve body 10, wherein a lower end of the first valve cover 2 is fixed to an upper end of the valve body 10 by extrusion, a lower end of the valve rod 3 is fixedly installed at an upper end of the valve rod head 8, the bellows 4 is slidably sleeved on an outer wall of the valve rod 3, the upper end of the corrugated pipe 4 is fixedly connected to the upper end of the valve rod 3, the lower end of the corrugated pipe 4 is fixedly connected to the inner wall of the lower end of the first valve cover 2, the inner wall of the upper portion of the second valve cover 5 is extruded on the outer wall of the lower portion of the first valve cover 2, the inner wall of the lower portion of the second valve cover 5 is installed on the outer wall of the upper portion of the valve body 10 in a threaded mode, the upper end of the valve rod head 8 is fixedly connected to the lower end of the valve rod 3 in a threaded mode, the upper portion of the valve seat 9 is fixedly embedded in the inner wall of the valve rod head 8 in a scarf mode, and the lower end of the valve seat 9 is matched with the inner wall of the valve body 10 in a sealed extrusion mode; after the valve rod 3 rises upwards with the help of external force, through the tensile bellows 4 of valve rod 3, utilize valve rod 3 compression bellows 4 on the contrary, through the mode of second valve gap 5 cover in the installation of first valve gap 2 lower part and 10 screw threads of valve body, with

first valve gap

2 and 10 fixed mounting of valve body, drive valve rod head 8 through valve rod 3 and drive the disconnection of disk seat 9 or switch-on valve body 10 inner space.

The upper end of the first valve cover 2 is fixedly provided with a moving machine 1, and a telescopic rod of the moving machine 1 is fixedly connected to the upper end of a valve rod 3; the motor 1 is an electric telescopic rod, and the valve rod 3 is driven by the motor 1 to move upwards or downwards.

A sealing gasket 7 is embedded at the upper part of the valve body 10, and the sealing gasket 7 is fixedly arranged on the inner wall of the upper part of the valve body 10; the valve body 10 is used to ensure the sealing between the valve body 10 and the first bonnet 2.

The lower ends of the first valve cover 2 and the corrugated pipe 4 are fixedly connected with a welding ring 6, and the lower end of the welding ring 6 is extruded on the upper wall of a sealing gasket 7; utilize the lower extreme of weld ring 6 fixed connection first valve gap 2 and bellows 4, and then play the effect of shielding first valve gap 2 inner space.

The lower end of the valve seat 9 is fixedly connected with a table-shaped extrusion head 11; the valve seat 9 and the table-shaped extrusion head 11 are of an integral structure.

The inner cavity of the valve body 10 is provided with a table-shaped groove 12, and the inner wall of the table-shaped groove 12 is matched with the outer wall of the table-shaped extrusion head 11 in a sealing and extruding manner; the internal space of the valve body 10 is cut off by pressing the truncated cone-shaped pressing head 11 and the truncated cone-shaped groove 12.

Example two

Referring to fig. 2, the valve seat 9 and the table-shaped extrusion head 11 are integrated, and the lower end of the table-shaped extrusion head 11 is spherical. And a spherical structure is adopted to keep good tightness.

The working principle is as follows: during the use, utilize external air supply drive motor 1 to drive valve rod 3 rebound for valve rod 3 tensile bellows 4 utilizes bellows 4 to adapt to valve rod 3's state, utilizes bellows 4 to seal 2 inner spaces of first valve gap simultaneously, prevents that water from getting into 2 insides of first valve gap, has ensured motor 1's waterproof nature, and after the reverse operation valve rod 3 of the same reason, messenger's device resumes the closure.

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

Claims

1. The utility model provides a vacuum bellows valve, includes first valve gap (2), valve rod (3), bellows (4), second valve gap (5), valve rod head (8), disk seat (9) and valve body (10), its characterized in that: the lower end of the first valve cover (2) is fixed at the upper end of the valve body (10) in an extruding way, the lower end of the valve rod (3) is fixedly arranged at the upper end of the valve rod head (8), the corrugated pipe (4) is sleeved on the outer wall of the valve rod (3) in a sliding way, the upper end of the corrugated pipe (4) is fixedly connected with the upper end of the valve rod (3), the lower end of the corrugated pipe (4) is fixedly connected with the inner wall of the lower end of the first valve cover (2), the upper inner wall of the second valve cover (5) is extruded on the lower outer wall of the first valve cover (2), the lower inner wall of the second valve cover (5) is installed on the upper outer wall of the valve body (10) in a threaded manner, the upper end of the valve rod head (8) is fixedly connected with the lower end of the valve rod (3) through threads, the upper part of the valve seat (9) is embedded and fixed on the inner wall of the valve rod head (8), the lower end of the valve seat (9) is matched with the inner wall of the valve body (10) in a sealing and extruding manner.

2. The vacuum bellows valve of claim 1, wherein: the upper end fixed mounting of first valve gap (2) has motivation (1), motivation (1) telescopic link fixed connection is in the upper end of valve rod (3).

3. A vacuum bellows valve according to claim 2, wherein: a sealing gasket (7) is embedded in the upper portion of the valve body (10), and the sealing gasket (7) is fixedly installed on the inner wall of the upper portion of the valve body (10).

4. A vacuum bellows valve according to claim 3, wherein: the lower ends of the first valve cover (2) and the corrugated pipe (4) are fixedly connected with a welding ring (6), and the lower end of the welding ring (6) is extruded on the upper wall of the sealing gasket (7).

5. The vacuum bellows valve of claim 1, wherein: the lower end of the valve seat (9) is fixedly connected with a table-shaped extrusion head (11).

6. The vacuum bellows valve of claim 5, wherein: the inner cavity of the valve body (10) is provided with a platform-shaped groove (12), and the inner wall of the platform-shaped groove (12) is matched with the outer wall of the platform-shaped extrusion head (11) in a sealing and extruding manner.