CN211398586U

CN211398586U - Adjustable main valve

Info

Publication number: CN211398586U
Application number: CN201922022298.7U
Authority: CN
Inventors: 周敏杰
Original assignee: Changzhou Amg Refrigeration Equipment Co ltd
Current assignee: Changzhou Amg Refrigeration Equipment Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-01
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to an adjust main valve, which comprises a valve body, be connected with the upper valve gap on the upper shed of valve body, be connected with the lower valve gap on its under shed, be equipped with first cavity, second cavity in the valve body and make two above-mentioned cavities realize the adjusting part of break-make, the adjusting part includes the valve rod, is located the piston on valve rod upper portion and is located the valve clack of valve rod lower part, the bottom of valve clack is equipped with the spring that is connected to the lower valve gap, be provided with the ejector pin that runs through its top and bottom on the upper valve gap, the ejector pin passes through the ejector pin seat and is connected. The utility model discloses set up into components of a whole that can function independently structure with disk seat and valve body on prior art's basis, set up the spring of being connected with the valve rod again on the disk seat, and set up two upper and lower valve clacks on the valve rod, it is more smooth and easy to open and close the valve body, more saves time, makes, installation and maintenance convenience.

Description

Adjustable main valve

Technical Field

The utility model belongs to the technical field of the governing valve technique and specifically relates to an adjust main valve.

Background

Most of the known regulating valves comprise a valve housing with a valve seat and a valve piston connected to a valve stem, which valve piston cooperates with the valve seat for opening and closing the regulating valve, a flange being fixed to the valve stem for connecting the valve stem to the valve piston. The valve seat is closed or opened by the valve piston and is actuated by the valve piston and valve stem at the same rate that it is opened and closed, but in practice it is generally desirable to have some faster closing rate. In addition, the conventional regulating valve is troublesome to manufacture, install and maintain.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a regulating main valve.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an adjust main valve, includes the valve body, be connected with the upper valve gap on the upper shed of valve body, be connected with lower valve gap on its lower shed, be equipped with first cavity, second cavity in the valve body and make the adjusting part of above-mentioned two cavities realization break-make, adjusting part includes the valve rod, is located the piston on valve rod upper portion and is located the valve clack of valve rod lower part, the bottom of valve clack is equipped with the spring that is connected to lower valve gap, be provided with the ejector pin that runs through from top to bottom on the upper valve gap, the ejector pin passes through the ejector pin seat and is connected with.

In order to conveniently adjust the ejector rod, the ejector rod seat is further limited to be externally connected with an ejector rod cap.

In order to guarantee the sealing performance and the integral firmness of the adjusting assembly, the bottom of the valve clack is further limited, a valve clack gasket is arranged at the bottom of the valve clack, a wrapping edge wrapping the periphery of the lower portion of the valve clack is arranged on the valve clack gasket, a valve clack pressing plate for pressing the valve clack gasket is arranged below the valve clack gasket, and the valve clack pressing plate is fixed on the valve rod through a locking bolt.

In order to ensure the smooth sliding of the piston, the piston is further limited to be provided with a guide ring on the outer periphery.

In order to ensure the connection sealing of the upper valve cover and the valve body, the connection part of the upper valve cover and the valve body is further limited to be provided with an upper flange gasket.

In order to ensure the connection sealing of the valve body and the lower valve cover, the joint of the valve body and the lower valve cover is further limited to be provided with a lower flange gasket.

For the automatic control of the regulating main valve, it is further defined that a plurality of ports for connecting pilot valves of various performances are provided on the upper valve cover.

The utility model has the advantages that: the utility model discloses set up into components of a whole that can function independently structure with disk seat and valve body on prior art's basis, set up the spring of being connected with the valve rod again on the disk seat, and set up piston and valve clack respectively from top to bottom on the valve rod, open and close the valve body more smoothly, more save time, make, installation and maintenance convenience.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the valve comprises a valve body, 2 parts of an upper valve cover, 3 parts of a lower valve cover, 4 parts of an adjusting assembly, 5 parts of a spring, 6 parts of an ejector rod, 7 parts of an ejector rod seat, 8 parts of an ejector rod cap, 9 parts of an upper flange gasket, 10 parts of a lower flange gasket, 11 parts of a first chamber, 12 parts of a first chamber, 21 parts of a connector, 41 parts of a valve rod, 42 parts of a piston, 43 parts of a valve clack, 44 parts of a valve clack gasket, 45 parts of a valve clack pressing plate and 421 parts of a guide ring.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, the main regulating valve of the present embodiment includes a valve body 1, an upper valve cover 2 is connected to an upper opening of the valve body 1, a lower valve cover 3 is connected to a lower opening of the valve body 1, a first chamber 11, a second chamber 12 and a regulating assembly 4 for opening and closing the two chambers are disposed in the valve body 1, the regulating assembly 4 includes a valve rod 41, a piston 42 located at an upper portion of the valve rod 41 and a valve flap 43 located at a lower portion of the valve rod 41, a spring 5 connected to the lower valve cover 3 is disposed at a bottom of the valve flap 43, a push rod 6 penetrating through the upper and lower portions of the upper valve cover 2 is disposed on the upper valve cover 2.

In this embodiment, the ejector pin base 7 is externally threaded with an ejector pin cap 8. The piston 42 is provided with a guide ring 421 on the outer periphery. An upper flange gasket 9 is arranged at the joint of the upper bonnet 2 and the valve body 1. And a lower flange gasket 10 is arranged at the joint of the valve body 1 and the lower valve cover 3.

In this embodiment, a valve flap pad 44 is disposed at the bottom of the valve flap 43, a wrapping edge surrounding the lower periphery of the valve flap 43 is disposed on the valve flap pad 44, a valve flap pressing plate 45 for pressing the valve flap pad 44 is disposed below the valve flap pad 44, and the valve flap pressing plate 45 is fixed to the valve rod 41 by a locking bolt.

When the valve body 1 is opened manually, the push rod 6 is rotated clockwise and rotates downwards, the push rod 6 pushes the adjusting assembly 4 to move downwards, and the valve clack 43 compresses the spring 5 until the first chamber 11 and the second chamber 12 form a passage; when the valve body 1 needs to be closed, the push rod 6 rotates upwards counterclockwise, the adjusting assembly 4 moves upwards under the action of the spring 5 until the valve clack 43 separates the first chamber 11 from the second chamber 12, and the adjustment is convenient and quick. When the valve body 1 is automatically controlled and adjusted, pilot valves with different performances are arranged on the interface 21 of the upper valve cover 2 to realize the adjustment and control of various functions.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an adjust main valve, includes valve body (1), be connected with upper valve cover (2) on the upper shed of valve body (1), be connected with lower valve cover (3) on its lower shed, its characterized in that: be equipped with first cavity (11), second cavity (12) in valve body (1) and make two above-mentioned cavities realize adjusting part (4) of break-make, adjusting part (4) include valve rod (41), be located piston (42) on valve rod (41) upper portion and be located valve clack (43) of valve rod (41) lower part, the bottom of valve clack (43) is equipped with spring (5) that are connected to lower valve gap (3), be provided with on upper valve gap (2) and run through ejector pin (6) from top to bottom, ejector pin (6) are connected with upper valve gap (2) through ejector pin seat (7).

2. The pilot valve according to claim 1, wherein: the ejector rod base (7) is connected with an ejector rod cap (8) through external threads.

3. The pilot valve according to claim 1, wherein: the bottom of valve clack (43) is equipped with valve clack gasket (44), valve clack gasket (44) are equipped with the bordure of wrapping valve clack (43) lower part periphery, and valve clack gasket (44) below is equipped with valve clack clamp plate (45) that compresses tightly valve clack gasket (44), valve clack clamp plate (45) are fixed on valve rod (41) through locking bolt.

4. The pilot valve according to claim 1, wherein: and a guide ring (421) is arranged on the periphery of the piston (42).

5. The pilot valve according to claim 1, wherein: an upper flange gasket (9) is arranged at the joint of the upper valve cover (2) and the valve body (1).

6. The pilot valve according to claim 1, wherein: and a lower flange gasket (10) is arranged at the joint of the valve body (1) and the lower valve cover (3).

7. The pilot valve according to claim 1, wherein: the upper valve cover (2) is provided with a plurality of interfaces (21) for connecting pilot valves with different performances.