CN217056560U

CN217056560U - Anti-seismic stop valve with high safety

Info

Publication number: CN217056560U
Application number: CN202220538225.2U
Authority: CN
Inventors: 缪翠琴
Original assignee: Yancheng Zhengshun Machinery Manufacturing Co ltd
Current assignee: Yancheng Zhengshun Machinery Manufacturing Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-26
Anticipated expiration: 2032-03-10

Abstract

The utility model provides an antidetonation stop valve of high security, including the valve body, the valve gap has set firmly on the valve body, and valve gap top coaxial seal installs valve rod nut, and the valve rod nut top is equipped with the hand wheel, and during the valve rod stretched into the valve body after passing valve rod nut, valve gap, valve rod nut's upper portion was provided with the calibrated scale, and the top tip of valve rod is provided with scale arrow head dish, and a plurality of fluorescence pieces are adorned admittedly to the coaxial interval of outer fringe on the hand wheel, and a plurality of fluorescence pieces are provided with the direction arrow point along same direction. The utility model is suitable for being placed at the position with poor light condition or insufficient light, and ensures the safety of the pipeline; the size of the valve switch is obtained, so that the flow of the fluid in the pipeline can be controlled; the reinforcing arm can increase torsional moment, and is time-saving and labor-saving in use and convenient to open.

Description

Anti-seismic stop valve with high safety

Technical Field

The utility model relates to a valve production technical field specifically is a antidetonation stop valve of high security.

Background

The stop valve is also called a gate valve and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur.

The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore the full open position of stop valve should be decided by the stroke of valve clack, and the stop valve on the other hand market all generally adopts the hand wheel at valve rod top to come the rotation of rotary control valve rod, carries out the switch of valve, and the power that the on-off valve needs is great, and the hand wheel rotates and has just not been used for a long time the stop valve and is difficult to open, needs to improve from this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antidetonation stop valve of high security to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an antidetonation stop valve of high security, includes the valve body, the valve gap has set firmly on the valve body, coaxial seal installation valve-stem nut in valve gap top, the valve-stem nut top is equipped with the hand wheel, and the valve rod passes stretch into behind valve-stem nut, the valve gap in the valve body, valve-stem nut's upper portion is provided with the calibrated scale, the top tip of valve rod is provided with scale arrow head dish, a plurality of fluorescence pieces are adorned admittedly at the coaxial interval of outer fringe on the hand wheel, and are a plurality of fluorescence piece is provided with the direction arrow point along same direction.

And a reinforcing arm is fixed on the valve rod nut.

The length of the reinforcing arm is greater than the radius of the hand wheel.

The outer side of the end part of the extending end of the reinforcing arm is wrapped with a rubber ring.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model is suitable for a place that is put at the light condition relatively poor or light is insufficient, a plurality of fluorescence blocks on the hand wheel are provided with the direction arrow along the same direction, when the light is not good in daytime, or when being the black body, the user can find the valve rapidly, and the clear direction of rotation can be clear at a glance at the same time, the security of the pipeline is guaranteed;

2. the upper part of the valve rod nut of the utility model is provided with the dial, the top end part of the valve rod is provided with the scale arrow head disc, when the hand wheel is rotated, the stroke of the valve clack is judged through the relative rotation distance between the arrow head on the scale arrow head disc and the dial, so that the size of the valve switch is known, and the size of the fluid flow in the pipeline can be controlled;

3. the utility model discloses be fixed with the strengthening arm on the well valve-stem nut, the strengthening arm can increase torsional moment, and labour saving and time saving is convenient for open during the use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the hand wheel of the present invention;

in the figure: 1, a valve body; 2, a valve cover; 3, a valve rod nut; 4, a hand wheel; 5, a valve rod; 6, a dial scale; 7, a scale arrow head disc; 8, a fluorescent block; 9 directional arrows; 10 a reinforcing arm; 11 rubber rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an antidetonation stop valve of high security, including valve body 1, valve gap 2 has set firmly on the valve body 1, valve gap 2 top coaxial seal

installation stem nut

3, 3 tops of stem nut are equipped with hand wheel 4, valve rod 5 passes stem nut 3, stretch into in the valve body 1 behind the valve gap 2, the upper portion of stem nut 3 is provided with calibrated scale 6, the top tip of valve rod 5 is provided with scale arrow head dish 7, a plurality of fluorescence pieces 8 are adorned admittedly to the coaxial interval of outer fringe on the hand wheel 4, a plurality of fluorescence pieces 8 are provided with direction arrow head 9 along same direction.

A reinforcing arm 10 is fixed to the stem nut 3.

The length of the reinforcing arm 10 is greater than the radius of the handwheel 4.

The outer side of the end part of the extending end of the reinforcing arm 10 is wrapped with a rubber ring 11.

It should be noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an antidetonation stop valve of high security, includes valve body (1), valve gap (2) have set firmly on valve body (1), valve gap (2) top coaxial seal installation valve stem nut (3), valve stem nut (3) top is equipped with hand wheel (4), and valve rod (5) pass stretch into behind valve stem nut (3), the valve gap (2) in valve body (1), its characterized in that: the upper portion of the valve rod nut (3) is provided with a dial (6), the top end portion of the valve rod (5) is provided with a scale arrow head disc (7), a plurality of fluorescent blocks (8) are fixedly mounted on the upper outer edge of the hand wheel (4) at coaxial intervals, and a plurality of direction arrows (9) are arranged on the fluorescent blocks (8) along the same direction.

2. A high safety, shock resistant shut off valve according to claim 1, wherein: and a reinforcing arm (10) is fixed on the valve rod nut (3).

3. A high safety, shock-resistant shut-off valve according to claim 2, wherein: the length of the reinforcing arm (10) is greater than the radius of the hand wheel (4).

4. A high safety, shock-resistant shut-off valve according to claim 2, wherein: the outer side of the end part of the extending end of the reinforcing arm (10) is wrapped with a rubber ring (11).