CN217927461U

CN217927461U - High-temperature-resistant corrugated pipe valve

Info

Publication number: CN217927461U
Application number: CN202123387782.3U
Authority: CN
Inventors: 聂敏; 郑委委; 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: 2022-11-29
Anticipated expiration: 2031-12-30

Abstract

The utility model belongs to the technical field of valve equipment, a high temperature resistant bellows valve is disclosed, including executor, valve rod, clamshell, bellows, nut, valve head and valve body, the lower extreme fixed connection of executor is in the upper end of clamshell, the upper end of valve rod and the push rod fixed connection of executor, the upper end fixed connection of bellows is on the upper portion of valve rod, the lower extreme fixed connection of bellows is at the lower extreme of clamshell, the nut sliding sleeve is in the lower part of clamshell, clamshell and nut sliding contact, the upper portion at the valve body is installed to the lower extreme screw thread of nut, the inner wall at the valve rod is installed to the upper portion screw thread of valve head, the lower extreme of valve head matches with the sealed extrusion of inner wall of valve body. The utility model discloses can improve the leakproofness of valve, better satisfying the use needs.

Description

High-temperature-resistant corrugated pipe valve

Technical Field

The utility model belongs to the technical field of valve equipment, specifically be a high temperature resistant 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.

Conventional electric putter valve mainly drives the valve rod through the push rod, drives the valve head through the valve rod and compresses tightly sealed, and its sealed pressure that mainly relies on the valve rod when water pressure is too big, and its pressure ratio reduces to cause the problem that the sealing performance of conventional valve is lower, so the scheme that can alleviate above-mentioned problem of urgent need.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant bellows valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature resistant bellows valve, includes executor, valve rod, clamshell, bellows, nut, valve head and valve body, the lower extreme fixed connection of executor is in the upper end of clamshell, the upper end of valve rod and the push rod fixed connection of executor, the upper end fixed connection of bellows is on the upper portion of valve rod, the lower extreme fixed connection of bellows is at the lower extreme of clamshell, nut sliding sleeve is in the lower part of clamshell, clamshell and nut sliding contact, the lower extreme screw thread of nut is installed on the upper portion of valve body, the inner wall at the valve rod is installed to the upper portion screw thread of valve head, the lower extreme of valve head matches with the sealed extrusion of the inner wall of valve body.

Preferably, the inner wall of the valve body is provided with a platform-shaped notch, the platform-shaped notch is inverted platform-shaped, the lower end of the valve head is provided with a sealing block, and the platform-shaped notch is matched with the lower wall of the sealing block.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the valve rod is controlled by the actuator to drive the valve head to close downwards, otherwise, the valve head is driven to open, and in the process, the flexibility of the corrugated pipe is used for adapting to the distance between the valve rod and the shell cover; when the tip of the lower part of the valve head seal increases the outward expansion force of the valve head, the sealing performance is further improved.

Drawings

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

fig. 2 is a schematic view of the valve head splitting structure of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the valve body of the present invention.

In the figure: 1. an actuator; 2. a valve stem; 3. a housing; 4. a bellows; 5. a nut; 6. a valve head; 7. A valve body; 13. a sealing block; 15. a table-shaped notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all 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" and the like indicate orientations or positional relationships according to the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, and are used to improve the connection between the description and the drawings and to increase the clarity of description, but not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1-2, a high temperature resistant bellows valve includes an actuator 1, a valve rod 2, a housing 3, a bellows 4, a nut 5, a valve head 6 and a valve body 7, wherein a lower end of the actuator 1 is fixedly connected to an upper end of the housing 3, an upper end of the valve rod 2 is fixedly connected to a push rod of the actuator 1, an upper end of the bellows 4 is fixedly connected to an upper portion of the valve rod 2, a lower end of the bellows 4 is fixedly connected to a lower end of the housing 3, the nut 5 is slidably sleeved on a lower portion of the housing 3, the housing 3 is in sliding contact with the nut 5, a lower end thread of the nut 5 is installed on an upper portion of the valve body 7, an upper thread of the valve head 6 is installed on an inner wall of the valve rod 2, and a lower end of the valve head 6 is in sealing, extruding and matching with an inner wall of the valve body 7.

Referring to fig. 3, a table-shaped notch 15 is formed in the inner wall of the valve body 7, the table-shaped notch 15 is in an inverted table shape, a sealing block 13 is arranged at the lower end of the valve head 6, and the table-shaped notch 15 is matched with the lower wall of the sealing block 13; the lower end of the sealing block 13 is tightly pressed on the inner wall of the table-shaped notch 15, so that the sealing performance is guaranteed.

The working principle is as follows: the actuator 1 is used for controlling the valve rod 2 to drive the valve head 6 to close downwards, otherwise, the valve head 6 is driven to open, and in the process, the flexibility of the corrugated pipe 4 is used for adapting to the distance between the valve rod 2 and the shell cover 3; when the valve head 6 seals the lower pointed end, the outward expansion force of the valve head 6 is increased, and the sealing performance is further improved.

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

Claims

1. The utility model provides a high temperature resistant bellows valve, includes executor (1), valve rod (2), clamshell (3), bellows (4), nut (5), valve head (6) and valve body (7), its characterized in that: the lower extreme fixed connection of executor (1) is in the upper end of clamshell (3), the upper end of valve rod (2) and the push rod fixed connection of executor (1), the upper end fixed connection of bellows (4) is on the upper portion of valve rod (2), the lower extreme fixed connection of bellows (4) is in the lower extreme of clamshell (3), nut (5) sliding sleeve is in the lower part of clamshell (3), clamshell (3) and nut (5) sliding contact, the lower extreme screw thread of nut (5) is installed on the upper portion of valve body (7), the inner wall at valve rod (2) is installed to the upper portion screw thread of valve head (6), the lower extreme of valve head (6) and the inner wall sealing extrusion matching of valve body (7).

2. A high temperature resistant bellows valve according to claim 1, wherein: the inner wall of the valve body (7) is provided with a table-shaped notch (15), the table-shaped notch (15) is in an inverted table shape, the lower end of the valve head (6) is provided with a sealing block (13), and the table-shaped notch (15) is matched with the lower wall of the sealing block (13).