CN211145388U

CN211145388U - Valve rod valve clack movable head of angle seat valve

Info

Publication number: CN211145388U
Application number: CN201922046323.5U
Authority: CN
Inventors: 刘宇金; 杭黎娟
Original assignee: Wuxi Skf Machinery Manufacturing Co ltd
Current assignee: Wuxi Skf Machinery Manufacturing Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-31
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a valve rod valve clack movable head of a corner seat valve, which comprises a valve rod and a valve clack, wherein the valve rod is installed at the middle part in a valve body, the upper end of the valve rod penetrates through a valve cover, the valve cover is installed on the surface of the top end of the valve body, the lower part of the valve rod is provided with a connecting part, the middle part of the connecting part is provided with a first assembling hole, the outer surface of the lower part of the connecting part is sleeved with the valve clack, the middle part of the valve clack is provided with a second assembling hole, a pin shaft is installed in the second assembling hole, one end of the pin shaft penetrates through the first assembling hole, the lower part of the outer side surface of the valve clack is sleeved with a tetrafluoro pad, a tetrafluoro cover plate is sleeved on the outer side surface of the valve clack at the lower part of the tetrafluoro, when the valve rod presses the valve clack, the angle can be self-adapted, so that the sealing performance is more reliable.

Description

Valve rod valve clack movable head of angle seat valve

Technical Field

The utility model relates to the technical field of valves, in particular to valve rod valve clack activity head of angle seat valve.

Background

The angle seat valve can save space to maintain the flow rate. It adopts a guide angle seat valve operated by a single-action pneumatic actuating mechanism with spring safety protection. When in use, the valve should be normally opened or normally closed. The angle seat valve is widely applied to short-time frequent starting, has the characteristics of sensitive response and accurate action, is matched with an electromagnetic valve for use, and can accurately control the flow of gas and liquid by pneumatic control. Can realize the requirements of accurate temperature control, liquid dripping and the like. The steam quantity of the damp-heat sterilization cabinet is controlled by an angle seat valve to accurately control the temperature. Angle seat valves are often used in the industries of paper making, printing and dyeing, environmental water treatment, beer and beverage, medical pharmacy and the like.

However, in the prior art, the valve rod and the valve clack are connected by adopting the bottom nut, and the nut screw rod has certain influence on the accurate flow rate of the angle seat valve in the valve body.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a valve rod valve clack activity head of angle seat valve.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a valve rod valve clack activity head of angle seat valve, includes valve rod and valve clack, the valve rod installation middle part in the valve body, and the valve rod upper end runs through the valve gap, the valve gap is installed on the valve body top surface, the valve rod lower part sets up connecting portion, first pilot hole is seted up at the connecting portion middle part, cup joint the valve clack on the surface of connecting portion lower part, the second pilot hole is seted up at the valve clack middle part, the downthehole erection pin axle of second pilot hole, round pin axle one end runs through first pilot hole, tetrafluoro pad is cup jointed to valve clack lateral surface lower part, cup joint the tetrafluoro apron.

Preferably, the valve rod and the connecting part are of an integral casting structure.

Preferably, the middle part of the upper end face of the valve clack is provided with a clamping hole, and the lower end of the valve rod is clamped in the clamping hole.

Preferably, the central axis of the first assembling hole and the central axis of the second assembling hole are on the same straight line, and the diameter size of the first assembling hole is 0.2 times larger than that of the second assembling hole.

Preferably, the middle part of the outer peripheral surface of the pin shaft is sleeved with a torsion spring, and two ends of the torsion spring are welded and fixed with the inner surface of the first assembling hole.

Adopt above-mentioned technical scheme, owing to set up the setting of first pilot hole, second pilot hole and round pin axle for the valve clack can be through valve rod pivoted angle, finely tunes self angle, can carry out accurate control to the velocity of flow of valve body, because the setting of torsional spring, when closing the valve body, the elasticity of torsional spring can make valve clack and valve body laminating, improves its sealing performance, the utility model discloses the installation is simple, and the reliable and firm structure, low cost, valve clack bottom need not lock nut, and the object that hinders the velocity of flow can not appear in the valve body part, thereby makes the velocity of flow more accurate, and valve rod and valve clack still have certain floating gap, and the valve clack can self-adaptation angle when the valve rod pushes down, thereby makes the leakproofness more reliable.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the valve comprises a valve clack 1, a valve body 2, a valve cover 3, a valve rod 4, a teflon cover plate 5, a teflon gasket 6, a first assembling hole 7, a torsion spring 8, a pin shaft 9, a second assembling hole 10 and a connecting part 41.

Detailed Description

The following description of the present invention will be made with reference to the accompanying drawings 1-2. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model provides a valve rod valve clack activity head of angle seat valve, includes valve rod 4 and valve clack 1, valve rod 4 installation middle part in valve body 2, and valve rod 4 upper end runs through valve gap 3, valve gap 3 installs on 2 top surfaces of valve body, valve rod 4 lower part sets up connecting portion 41, first pilot hole 7 is seted up at connecting portion 41 middle part, cup joint valve clack 1 on the surface of connecting portion 41 lower part, second pilot hole 10 is seted up at valve clack 1 middle part, mounting pin 9 in the second pilot hole 10, first pilot hole 7 is run through to round pin 9 one end, tetrafluoro pad 6 is cup jointed to 1 lateral surface lower part of valve clack, cup joint tetrafluoro apron 5 on 1 lateral surface of valve clack of tetrafluoro pad 6 lower part for valve clack 1 can be through valve rod 4 pivoted angle, finely tunes self angle, can carry out accurate control to the velocity of flow.

Valve rod 4 and connecting portion 41 are the integrated into one piece structure of pouring, have improved the whole mechanical strength of valve body 2, prolong valve rod 4's life.

The joint hole is seted up in valve clack 1 up end middle part, the joint of 4 lower extremes of valve rods is downthehole at the joint, is convenient for carry out rapid Assembly with valve clack 1 and valve rod 4.

The axis of first pilot hole 7 is on same straight line with the axis of second pilot hole 10, and the diameter size of first pilot hole 7 is 0.2 times bigger than the diameter of second pilot hole 10, can insert first pilot hole 7 with round pin axle 9 accuracy from second pilot hole 10 in.

The middle part of the outer peripheral surface of the pin shaft 9 is sleeved with a torsion spring 8, the two ends of the torsion spring 8 are welded and fixed with the inner surface of the first assembling hole 7, and when the valve body 2 is closed, the elasticity of the torsion spring 8 can enable the valve clack 1 to be attached to the valve body 2, so that the sealing performance of the valve clack is improved.

The working principle is as follows:

at first pack into valve clack 1 with tetrafluoro pad 6, then close tetrafluoro pad 6 with tetrafluoro apron 5, then it turns over with the limit of putting into press frock with valve clack 1 top, prevent tetrafluoro pad 6 and tetrafluoro apron 5 and drop, insert valve rod 4 in valve clack 1's joint is downthehole after that, then insert first pilot hole 7 from second pilot hole 10 with round pin axle 9 in, be connected valve clack 1 and valve rod 4 through round pin axle 9, valve rod 4 and valve clack 1 can also have certain clearance of floating this moment, valve clack 1 can self-adaptation angle when valve rod 4 pushes down, the object that hinders the velocity of flow can not appear in 2 parts of valve body, thereby make the velocity of flow more accurate, torsion spring 8's setting simultaneously, when closing valve body 2, torsion spring 8's elasticity, can make valve clack 1 and the laminating of valve body 2.

The embodiments of the present invention have been described in detail with reference to fig. 1-2, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a valve rod valve clack activity head of angle seat valve, includes valve rod (4) and valve clack (1), its characterized in that: valve rod (4) installation middle part in valve body (2), and valve rod (4) upper end runs through valve gap (3), install on valve body (2) top surface valve gap (3), valve rod (4) lower part sets up connecting portion (41), first pilot hole (7) are seted up at connecting portion (41) middle part, cup joint valve clack (1) on connecting portion (41) lower part surface, second pilot hole (10) are seted up at valve clack (1) middle part, erection pin axle (9) in second pilot hole (10), round pin axle (9) one end runs through first pilot hole (7), tetrafluoro pad (6) is cup jointed to valve clack (1) lateral surface lower part, cup joint tetrafluoro apron (5) on valve clack (1) lateral surface of tetrafluoro pad (6) lower part.

2. The movable head of a stem flap of a globe valve as set forth in claim 1, wherein: the valve rod (4) and the connecting part (41) are of an integral pouring forming structure.

3. The movable head of a stem flap of a globe valve as set forth in claim 1, wherein: the middle part of the upper end face of the valve clack (1) is provided with a clamping hole, and the lower end of the valve rod (4) is clamped in the clamping hole.

4. The movable head of a stem flap of a globe valve as set forth in claim 1, wherein: the central axis of the first assembling hole (7) and the central axis of the second assembling hole (10) are on the same straight line, and the diameter size of the first assembling hole (7) is 0.2 times larger than that of the second assembling hole (10).

5. The movable head of a stem flap of a globe valve as set forth in claim 1, wherein: and the middle part of the outer peripheral surface of the pin shaft (9) is sleeved with a torsion spring (8), and the two ends of the torsion spring (8) are fixedly welded with the inner surface of the first assembling hole (7).