CN218267297U

CN218267297U - Valve rod of pneumatic stop valve

Info

Publication number: CN218267297U
Application number: CN202222592756.2U
Authority: CN
Inventors: 马崇武
Original assignee: Foshan Chongmao Technology Co ltd
Current assignee: Foshan Chongmao Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-10
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a pneumatic stop valve rod relates to stop valve rod field, which comprises a valve body, valve body top threaded connection has the valve gap, there is the valve cap valve gap on the valve gap top through threaded connection, the inside middle rotation of valve cap be connected with valve gap threaded connection's valve rod, there is the valve clack valve rod bottom through threaded connection, the inside bottom of valve rod be connected with valve clack complex hasp, the inside upper end swing joint of valve rod has the movable button. The valve rod and the valve clack are connected in a split way, the upper end of the valve rod is provided with the movable button, and the lower end of the valve rod is provided with the spring and the lock catch to replace the worn valve clack, so that the problem of repeatedly disassembling the valve cap is solved, and the wear of the valve cap and the valve rod is reduced; have the activity button through the inside upper end swing joint of valve rod and make the spring motion, use the hasp to this solves current partial split type valve rod, adopts the mode of bolt and valve clack to be connected, produces not hard up along with the rotation of valve rod or valve clack easily.

Description

Valve rod of pneumatic stop valve

Technical Field

The utility model relates to a pneumatic stop valve field specifically is a pneumatic stop valve rod.

Background

The closing principle of the stop valve is that the valve clack sealing surface is tightly attached to the valve seat cover by means of pressure of a valve rod to prevent medium from flowing, the stop valve is used as an extremely important cut-off valve, torque is applied to the stop valve through a valve rod in a sealing mode, pressure is applied to the valve clack by the valve rod in the axial direction to enable the valve clack to be tightly attached to the valve seat cover, and a sealing pair for preventing the medium from leaking out of the stop valve along a gap between the sealing surfaces is composed of the valve clack sealing surface and the valve seat sealing surface.

The valve rod drives the valve clack to move vertically along the central line of the valve seat, the opening height of the stop valve is small in the opening and closing process, the flow is easy to adjust, the manufacturing and the maintenance are convenient, and the pressure application range is wide. Compared with another common cut-off valve, namely a gate valve, in industrial production, the stop valve is simpler than the former valve in structure and convenient to manufacture and maintain, and the sealing surface of the stop valve is not easy to wear and scratch in service life, and the valve clack and the sealing surface of the valve seat do not slide relatively in the opening and closing process of the valve, so that the wear and scratch to the sealing surface are smaller, the service life of the sealing pair is prolonged, the stroke of the valve clack is small in the full-closing process, and the height of the stop valve is smaller relative to the gate valve.

At present valve clack and valve rod generally adopt the integral type casting, and the valve rod moves under the effect of external forces such as manpower, electronic or pneumatic actuator, and then drives the valve clack and remove, mutually supports between messenger's valve clack and the valve body to control the circulation of rivers or other medium, general valve rod adopts the screw thread to be connected with the valve body, reciprocates along with rotating, and then drives opening and shutting between valve clack and the valve body, and in the ball valve, the valve rod only drives the valve clack rotation can control and open and shut.

In the shutoff valve, the valve clack produces wearing and tearing easily under the washing away of rivers, when the valve clack wearing and tearing to the certain extent, can laminate with the valve body is unable promptly, thereby the condition such as flowing water appears, valve cap and valve gap generally need be unpack apart this moment, remove handle and valve rod in the valve cap and be connected, demolish valve rod and valve clack in the lump again, need change the valve rod together when changing the valve clack more, and dismantle the valve cap repeatedly, lead to the junction wearing and tearing between valve cap and the valve cap easily, and then lead to the condition of leaking to appear, and the split type valve rod of current part, the mode of adoption bolt is connected with the valve clack, produce not hard up along with the rotation of valve rod or valve clack easily.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a pneumatic stop valve to solve current stop valve rod and valve clack and easily drop with the technical problem of the wearing and tearing of valve cap and valve rod.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic stop valve rod, includes the valve body, valve body top threaded connection has the valve gap, there is the valve gap on the valve gap top through threaded connection, the inside middle rotation of valve gap be connected with valve gap threaded connection's valve rod, there is the valve clack valve rod bottom through threaded connection, the inside bottom of valve rod be connected with valve clack complex hasp, the inside upper end swing joint of valve rod has the movable button, the hasp with be connected with between the movable button and run through the haulage rope of valve rod, the inside bottom of valve rod be provided with the multiunit with hasp complex spring, the inside bottom of valve body seted up the multiunit with hasp complex water inlet.

Through adopting above-mentioned technical scheme, the valve body control rivers trend of setting, through the removal of valve gap restriction valve rod, the valve rod is sealed the valve gap top through the valve cap through the lift with the screw-thread fit of valve gap with the control valve rod when rotatory, through the internal connection of valve rod and valve clack, the cooperation hasp is used to the dismantlement and the change of valve clack, the movable button that is connected through the inside upper end of valve rod drives the haulage rope that runs through between the valve rod and loosens the hasp and make spring promotion hasp locking valve clack.

The utility model discloses further set up to, the import has been seted up to valve body one side, the export has been seted up to one side that the import was kept away from to the valve body.

Through adopting above-mentioned technical scheme, the import that sets up one side of the valve body that sets up makes rivers or other medium get into, and export through the one side of keeping away from the import makes rivers or other medium pass through.

The utility model discloses further set up to, set up the valve gap both sides are provided with the pneumatic actuator mount, the valve cap top be fixed with valve rod complex pneumatic actuator.

Through adopting above-mentioned technical scheme, pneumatic actuator mount is used for fixed pneumatic actuator, and pneumatic actuator is used for controlling the removal of valve clack in order to control the switching of whole valve.

The utility model discloses further set up to, the valve gap is equipped with the gasket with the access connection department, the valve gap is equipped with the gasket with the export.

Through adopting above-mentioned technical scheme, the gasket that is equipped with through valve gap and access connection department that sets up increases closely degree and laminating degree, is equipped with the gasket through valve gap and access connection department and increases inseparable and laminating degree.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the valve rod and the valve clack are connected in a split way, the upper end of the valve rod is provided with the movable button, and the lower end of the valve rod is provided with the spring and the lock catch to replace the worn valve clack, so that the problem of repeatedly disassembling the valve cap is solved, and the wear of the valve cap and the valve rod is reduced;

2. the utility model discloses an inside upper end swing joint of valve rod has the movable button to make the spring motion, uses the hasp to this solves current split type valve rod of part, adopts the mode and the valve clack of bolt to be connected, produces not hard up along with the rotation of valve rod or valve clack easily.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a schematic view of the overall structure of the present invention;

fig. 5 is a perspective view of the present invention.

In the figure: 1. a valve body; 2. an inlet; 3. a pneumatic actuator fixing frame; 4. a pneumatic actuator; 5. an outlet; 6. a water inlet; 7. a spring; 8. a valve clack; 9. locking; 10. a hauling rope; 11. a valve stem; 12. A bonnet; 13. a valve cover; 14. an active button.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The following describes an embodiment of the present invention according to its overall structure.

The utility model provides a pneumatic stop valve rod, as shown in fig. 1-5, including valve body 1, 1 top threaded connection of valve body has valve gap 13, there is valve cap 12 on valve cap 13 top through threaded connection, valve cap 12 is inside to be connected with valve rod 11 with 13 threaded connection in the middle of rotating, there is valve clack 8 valve rod 11 bottom through threaded connection, control valve clack 8 is used for the switching valve through 11 rotatory cooperation valve cap 13 of valve rod, valve rod 11 inside upper end swing joint has movable button 14, be connected with haulage rope 10 that runs through valve rod 11 between hasp 9 and the movable button 14, the tight and lax of 14 steerable haulage rope 10 of slip movable button, the inside bottom of valve rod 11 is connected with and valve clack 8 complex hasp 9, the inside bottom of valve rod 11 is provided with multiunit and hasp 9 complex spring 7, can relax hasp 9 when haulage rope 10 relaxes and make spring 7 can promote hasp 9 locking valve rod 11, can pull hasp 9 breaks away from valve clack 8 when haulage rope 10 is tight, the inside bottom of valve body 1 is seted up multiunit and hasp 9 complex water inlet 6, promote hasp 9 through water inlet when valve body 1 is worked and make the hasp 9 inseparabler to the valve clack fixation of hasp 8 inseparabler.

An inlet 2 is formed in one side of the valve body 1 so that fluid can enter the valve body conveniently, an outlet 5 is formed in one side, away from the inlet 2, of the valve body 1 so that water flow or other media can pass through the valve body conveniently, pneumatic actuator fixing frames 3 are arranged on two sides of the valve cover 13, and a pneumatic actuator 4 matched with the valve rod 11 is fixed to the top of the valve cap 12 so that rotation of the valve rod 11 can be controlled.

The joint of the valve cover 13 and the inlet 2 is provided with a gasket, and the valve cover 13 and the outlet 5 are provided with gaskets to increase the tightness and the fitting degree between the valve cover 13 and the outlet.

In order to prevent that valve clack 8 from producing wearing and tearing under the erodeing of rivers or other medium, when valve clack 8 wearing and tearing to the certain degree, can be with valve body 1 laminating unavailability promptly, thereby the circumstances such as flowing water appear, bonnet 12 and valve gap 13 generally need be unpack apart this moment, with being connected the release of handle and valve rod 11 in the bonnet 12, demolish valve rod 11 and valve clack 8 in the lump again, need change valve rod 11 together when changing valve clack 8 more, and dismantle bonnet 12 repeatedly, lead to the junction wearing and tearing between bonnet 12 and the valve gap 13 easily, and then lead to the condition of leaking to appear, and the split type valve rod of current part, adopt the mode of bolt to be connected with valve rod 8, produce loosely along with the rotation of valve rod 11 or valve clack 8 easily.

There is valve clack 8 valve rod 11 bottom through threaded connection, 11 inside bottoms of valve rod be connected with valve clack 8

complex hasp

9, 11 inside upper ends swing joint of valve rod has movable button 14, is connected with the haulage rope 10 that runs through valve rod 11 between hasp 9 and the

movable button

14, 11 inside bottoms of valve rod be provided with multiunit and hasp 9 complex spring 7, multiunit and hasp 9 complex water inlet 6 have been seted up to 1 inside bottom of valve body.

Through the movable button 14 on the valve rod 11, the haulage rope 10 between the valve rod 11 is run through in the drive, the tight and lax of haulage rope 10 is controlled to slip movable button 14, the inside bottom of valve rod 11 is connected with and hasp 9 is to complex spring 7, when needs demolish, slip movable button 14, can make haulage rope 10 tighten to make spring 7 pulling hasp 9 automatic break away from, when needing to install, slip movable button 14 can make haulage rope 10 relax and make spring 7 promote hasp 9 locking valve rod 11 with this when to the certain degree, when valve body 1 is at the during operation, rivers or other media make hasp 9 more firm to the fixed of valve clack 8 because the pressure of pressure to spring 7 when getting into water inlet 6, with this can avoid the mistake to bump movable button 14, lead to being connected between valve clack 8 and the valve rod 11 not hard up, improve fault-tolerant rate.

The utility model discloses creatively optimizes pneumatic stop valve rod and valve clack 8, avoided traditional valve clack 8 to produce wearing and tearing easily under the washing away of rivers, when wearing and tearing to a certain extent, can laminate with valve body 1 promptly, thereby the condition such as flowing water appears, generally need unpack valve cap 12 and valve gap 13 apart at this moment, remove being connected with the valve rod handle in the valve cap 12, remove valve rod 11 and valve clack 8 together again, change valve clack 8 the time need change valve rod 11 together more, and dismantle valve cap 12 repeatedly, lead to the wearing and tearing of junction between valve cap 12 and valve gap 13 easily, and then lead to the condition of leaking or other medium to appear, there is partial split type valve rod among the prior art, adopt the mode of bolt to be connected with valve clack 8, also produce not hard up along with the rotation of valve rod 11 or valve clack 8 easily; in this scheme, through the components of a whole that can function independently connection of valve rod 11 and valve clack 8, be equipped with movable button 14 in valve rod 11 upper end, make spring 7 motion, drive hasp 9, make valve rod 11 firmly bolt with valve clack 8, the lower extreme is equipped with spring 7 and hasp 9 and replaces the valve clack 8 with the damage to this improves the problem of dismantling valve cap 12 repeatedly, with this wearing and tearing that reduce valve cap 12 and valve rod 11.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims

1. The utility model provides a pneumatic stop valve rod, includes valve body (1), valve body (1) top threaded connection has valve gap (13), there is valve cap (12), its characterized in that on valve gap (13) top through threaded connection: valve cap (12) inside middle rotation be connected with valve gap (13) threaded connection's valve rod (11), there is valve clack (8) valve rod (11) bottom through threaded connection, valve rod (11) inside bottom be connected with valve clack (8) complex hasp (9), valve rod (11) inside upper end swing joint has movable button (14), hasp (9) with be connected with between movable button (14) and run through haulage rope (10) of valve rod (11), valve rod (11) inside bottom be provided with the multiunit with hasp (9) complex spring (7), valve body (1) inside bottom seted up the multiunit with hasp (9) complex water inlet (6).

2. A pneumatic stop valve stem as defined in claim 1, wherein: an inlet (2) is formed in one side of the valve body (1), and an outlet (5) is formed in one side, far away from the inlet (2), of the valve body (1).

3. A pneumatic stop valve stem as defined in claim 1, wherein: valve gap (13) both sides are provided with pneumatic actuator mount (3), valve cap (12) top be fixed with valve rod (11) complex pneumatic actuator (4).

4. A pneumatic stop valve stem as defined in claim 3, wherein: an air inlet pipe connecting port is formed in the outer side of the pneumatic actuator (4), and an air outlet pipe connecting port is formed in one side, far away from the air inlet pipe connecting port, of the outer side of the pneumatic actuator (4).

5. A pneumatic stop valve stem as defined in claim 1, wherein: the joint of the valve cover (13) and the inlet (2) is provided with a gasket, and the valve cover (13) and the outlet (5) are provided with gaskets.