CN214305313U

CN214305313U - Hard sealing stop valve

Info

Publication number: CN214305313U
Application number: CN202120540039.8U
Authority: CN
Inventors: 黄敬
Original assignee: Yuhuan Zhengqu Fluid Intelligent Control Co ltd
Current assignee: Yuhuan Zhengqu Fluid Intelligent Control Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-09-28
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a hard seal stop valve, which comprises a valve body, the upper portion fixed mounting of valve body has the valve gap, the upper portion fixed mounting of valve gap has gland, it has the filler to fill between valve gap and the gland, the inner wall threaded connection of valve gap has the valve rod, the top fixed mounting of valve rod has the hand wheel, the bottom fixed mounting of valve rod has the valve clack, the outside of valve clack is equipped with sealing mechanism, gland's upper portion fixed mounting has fixed establishment, sealing mechanism comprises with the encryption lid and encryption groove, encryption lid fixed mounting is in the outside of valve clack. Hard seal stop valve, the sealing port is by the shutoff completely, the unable mutual circulation of medium entrance point and the medium exit end of valve body, great increase the leakproofness of whole stop valve, avoid appearing the phenomenon of seepage, the practicality is higher, moreover the effectual stability that increases the valve rod improves the life of whole stop valve.

Description

Hard sealing stop valve

Technical Field

The utility model relates to a stop valve field, in particular to hard seal stop valve.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, can be divided into a shut-off valve, a check valve, a regulating valve and the like according to functions of the valve, is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for a valve of the fluid control system, and is various from a simplest stop valve to various valves used in a very complicated automatic control system, and has quite various varieties and specifications, so the valve is popular, because the friction force between sealing surfaces in the opening and closing process is small, the valve is relatively durable, the opening height is not large, the manufacture is easy, the maintenance is convenient, and the valve is not only suitable for medium and low pressure, but also suitable for high pressure;

firstly, the bottom end of the valve rod is not supported enough, so that the valve rod is easy to deform due to the pressure of medium fluid and leak, and the service life of the valve is influenced; secondly, traditional valve clack is all one, seals the intercommunication mouth top position between medium import and medium export, can lead to the valve to still have the phenomenon of leaking when pressure is too big, and the shutoff effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides the stop valve seals firmly can effectively solve in the background art: the conventional valve directly controls the valve clack to work in the vertical direction of a threaded valve rod, so that the bottom end of the valve rod is not supported sufficiently, the valve rod is easy to deform due to the pressure of medium fluid, and the service life of the valve is influenced by the phenomenon of leakage; secondly, traditional valve clack is all one, seals the intercommunication mouth top position between medium import and medium export, can lead to the valve to still have the phenomenon of leaking when pressure is too big, the poor technical problem of shutoff effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

hard seal stop valve, including the valve body, the upper portion fixed mounting of valve body has the valve gap, the upper portion fixed mounting of valve gap has gland, it has the filler to fill between valve gap and the gland, the inner wall threaded connection of valve gap has the valve rod, the top fixed mounting of valve rod has the hand wheel, the bottom fixed mounting of valve rod has the valve clack, the outside of valve clack is equipped with sealing mechanism, gland's upper portion fixed mounting has fixed establishment.

As a further aspect of the present invention, the sealing mechanism is composed of an encryption cover and an encryption groove, the encryption cover is fixedly mounted on the outside of the valve clack, and the encryption groove is disposed in the inside of the valve body and below the encryption cover.

As a further proposal of the utility model, the edge shape of the encryption cover is a cone, and the encryption cover is matched with the encryption groove.

As a further aspect of the present invention, the fixing mechanism includes a holder, a stud, a limiting seat, a first clamping block, a second clamping block, a rubber pad, a screw and a handle, the holder is fixedly mounted on the upper portion of the packing gland, the limiting seat is fixedly mounted at the middle position of the holder, the first clamping block and the second clamping block are slidably connected to one side of the holder, the stud runs through the first clamping block and the second clamping block through the limiting seat and is movably connected to the inside of the holder, the rubber pad is fixedly mounted on the front portion of the first clamping block through the screw, and the handle is fixedly mounted on one end of the stud.

As a further aspect of the present invention, the limiting seat runs through the clamping seat, the first clamping block and the second clamping block are symmetrically installed, and the stud is connected with the first clamping block and the second clamping block by screw threads.

As a further aspect of the present invention, the number of the screws is four, the second clamping block is also provided with a rubber pad, and the rubber pad is arc-shaped.

As a further scheme of the utility model, the inside of valve body is equipped with the seal, and the seal communicates in the medium entrance point and the medium exit end of valve body, and the seal corresponds with the valve clack is perpendicular.

Compared with the prior art, the utility model discloses following beneficial effect has: in the utility model, by arranging the sealing mechanism, the hand wheel is firstly rotated to drive the valve rod to rotate, the valve rod moves downwards through the screw thread effect, and the valve clack at the bottom end of the valve rod is driven to plug the sealing opening downwards;

through setting up fixed establishment, rotate the handle and drive stud and rotate, stud passes through the screw thread effect and promotes first clamp splice and second clamp splice to the centre, makes rubber pad and valve rod laminating, and first clamp splice is fixed with the valve rod centre gripping with the second clamp splice this moment, the effectual stability that increases the valve rod, improves the life of whole stop valve.

Drawings

FIG. 1 is a schematic view of the overall structure of the hard seal stop valve of the present invention;

FIG. 2 is a top view of the fixing structure of the hard seal stop valve of the present invention;

fig. 3 is the structure diagram of the valve clack and the encryption cover of the hard sealing stop valve of the utility model.

In the figure: 1. a valve body; 2. a valve cover; 3. a hand wheel; 4. a valve stem; 5. a packing gland; 6. a filler; 7. a valve flap; 8. a sealing mechanism; 9. an encryption cover; 10. an encryption groove; 11. a fixing mechanism; 12. a holder; 13. a stud; 14. a limiting seat; 15. a first clamping block; 16. a second clamp block; 17. a rubber pad; 18. a screw; 19. a handle.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, the hard seal stop valve includes a valve body 1, a valve cover 2 is fixedly mounted on the upper portion of the valve body 1, a packing gland 5 is fixedly mounted on the upper portion of the valve cover 2, packing 6 is filled between the valve cover 2 and the packing gland 5, a valve rod 4 is connected to the inner wall of the valve cover 2 through a thread, a hand wheel 3 is fixedly mounted on the top end of the valve rod 4, a valve flap 7 is fixedly mounted on the bottom end of the valve rod 4, a sealing mechanism 8 is arranged outside the valve flap 7, and a fixing mechanism 11 is fixedly mounted on the upper portion of the packing gland 5;

the sealing mechanism 8 consists of an encryption cover 9 and an encryption groove 10, the encryption cover 9 is fixedly arranged outside the valve clack 7, and the encryption groove 10 is arranged inside the valve body 1 and is positioned below the encryption cover 9; the edge of the encryption cover 9 is conical, and the encryption cover 9 is matched with the encryption groove 10; the fixing mechanism 11 comprises a clamping seat 12, a stud 13, a limiting seat 14, a first clamping block 15, a second clamping block 16, a rubber pad 17, a screw 18 and a handle 19, the clamping seat 12 is fixedly arranged at the upper part of the packing gland 5, the limiting seat 14 is fixedly arranged at the central position of the clamping seat 12, the first clamping block 15 and the second clamping block 16 are both connected to one side of the clamping seat 12 in a sliding manner, the stud 13 penetrates through the first clamping block 15 and the second clamping block 16 and is movably connected to the inside of the clamping seat 12 through the limiting seat 14, the rubber pad 17 is fixedly arranged at the front part of the first clamping block 15 through the screw 18, and the handle 19 is fixedly arranged at one end of the stud 13; the limiting seat 14 penetrates through the clamping seat 12, the first clamping block 15 and the second clamping block 16 are symmetrically arranged, and the stud 13 is in threaded connection with the first clamping block 15 and the second clamping block 16; the number of the screws 18 is four, the second clamping block 16 is also provided with a rubber pad 17, and the rubber pad 17 is arc-shaped; the inside of the valve body 1 is provided with a sealing opening which is communicated with the medium inlet end and the medium outlet end of the valve body 1, the sealing opening vertically corresponds to the valve clack 7, and the sealing opening is used for blocking medium circulation of the valve body 1.

It should be noted that, the utility model discloses a stop valve seals firmly, when using, at first, it is rotatory to rotate hand wheel 3 and drive valve rod 4, valve rod 4 passes through screw thread effect downstream, the sealed mouth is stopped up downwards to valve clack 7 that drives valve rod 4 bottom simultaneously, valve clack 7 outside is encrypted and is covered 9 and is agreed with encryption groove 10 this moment, the sealed mouth is by the shutoff completely this moment, the unable intercommunication each other of medium entrance point and the medium exit end of valve body 1, then it rotates to rotate handle 19 and drive stud 13, stud 13 promotes first clamp splice 15 and second clamp splice 16 to the centre through screw thread effect, make rubber pad 17 and valve rod 4 laminating, first clamp splice 15 and second clamp splice 16 are fixed valve rod 4 centre gripping this moment, work is accomplished.

The utility model discloses a setting up sealing mechanism 8, at first rotating hand wheel 3 and driving valve rod 4 rotatory, valve rod 4 moves downwards through the screw thread effect, valve clack 7 that drives valve rod 4 bottom simultaneously plugs up the seal opening downwards, the outside encryption lid 9 of valve clack 7 agrees with encryption groove 10 this moment, the seal opening is plugged completely this moment, the medium entrance point and the medium exit end of valve body 1 can't circulate each other, great increase the leakproofness of whole stop valve, avoid appearing the phenomenon of seepage, the practicality is higher; through setting up fixed establishment 11, rotate handle 19 and drive stud 13 and rotate, stud 13 promotes first clamp splice 15 and second clamp splice 16 to the centre through the screw thread effect, makes rubber pad 17 and valve rod 4 laminating, and first clamp splice 15 and second clamp splice 16 are fixed with the centre gripping of valve rod 4 this moment, the effectual stability that increases valve rod 4 improves the life of whole stop valve.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Hard seal stop valve, its characterized in that: including valve body (1), the upper portion fixed mounting of valve body (1) has valve gap (2), the upper portion fixed mounting of valve gap (2) has gland (5), it has filler (6) to fill between valve gap (2) and gland (5), the inner wall threaded connection of valve gap (2) has valve rod (4), the top fixed mounting of valve rod (4) has hand wheel (3), the bottom fixed mounting of valve rod (4) has valve clack (7), the outside of valve clack (7) is equipped with sealing mechanism (8), the upper portion fixed mounting of gland (5) has fixed establishment (11).

2. The hard seal shut-off valve of claim 1, wherein: the sealing mechanism (8) is composed of an encryption cover (9) and an encryption groove (10), the encryption cover (9) is fixedly installed on the outer portion of the valve clack (7), and the encryption groove (10) is formed in the valve body (1) and is located below the encryption cover (9).

3. The hard seal shut-off valve of claim 2, wherein: the edge of the encryption cover (9) is conical, and the encryption cover (9) is matched with the encryption groove (10).

4. The hard seal shut-off valve of claim 3, wherein: fixing mechanism (11) is including holder (12), stud (13), spacing seat (14), first clamp splice (15), second clamp splice (16), rubber pad (17), screw (18) and handle (19), holder (12) fixed mounting is on the upper portion of gland (5), spacing seat (14) fixed mounting is in the position placed in the middle of holder (12), first clamp splice (15) and the equal sliding connection of second clamp splice (16) are in one side of holder (12), stud (13) run through in first clamp splice (15) and second clamp splice (16) through the inside of spacing seat (14) swing joint in holder (12), rubber pad (17) are through screw (18) fixed mounting in the front portion of first clamp splice (15), handle (19) fixed mounting is in the one end of stud (13).

5. The hard seal shut-off valve of claim 4, wherein: spacing seat (14) run through in holder (12), first clamp splice (15) and second clamp splice (16) symmetry installation, stud (13) and first clamp splice (15) and second clamp splice (16) threaded connection.

6. The hard seal shut-off valve of claim 4, wherein: the number of the screws (18) is four, the second clamping block (16) is also provided with a rubber pad (17), and the rubber pad (17) is arc-shaped.

7. The hard seal shut-off valve of claim 1, wherein: the inside of valve body (1) is equipped with the sealing port, and the sealing port communicates in the medium entrance point and the medium exit end of valve body (1), and the sealing port corresponds with valve clack (7) vertical.