CN217081485U

CN217081485U - High-pressure gas seal valve

Info

Publication number: CN217081485U
Application number: CN202220271835.0U
Authority: CN
Inventors: 吴翼鹏; 盛建设; 孙焕斌; 朱永昌
Original assignee: Xinxiang Pingyuan Fluid Control Technology Co ltd
Current assignee: Xinxiang Pingyuan Fluid Control Technology Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-07-29
Anticipated expiration: 2032-02-10

Abstract

The utility model discloses a high-pressure sealing valve, which comprises a valve body, wherein a valve seat is arranged in the valve body, a valve passage which runs through the valve body is arranged in the middle of the valve seat, the inside of the valve seat is slidably connected with a valve core which is used for controlling the on-off of the valve passage, the top end of the valve core is rotatably connected with a valve rod which is used for driving the valve core to move, the top end of the valve rod runs through the valve seat and the valve body, the upper end and the lower end of the valve core are respectively provided with a third sealing ring, the high-pressure sealing valve also comprises a pressing component which is used for driving the valve body to always press against the valve seat, the pressing component is positioned in the valve core, the utility model ensures that the third sealing ring can always press against the valve seat, avoids the situation that the third sealing ring can not be tightly attached to the valve seat due to the abrasion caused by the long-time movement of the third sealing ring, thereby avoiding the situation that the leakage is caused by the damage of the third sealing ring, greatly reducing the possibility of leakage, and having simple structure and convenient use.

Description

High-pressure gas seal valve

Technical Field

The utility model relates to the technical field of valves, specifically a high-pressure seal valve.

Background

Valves are pipe fittings used to open and close pipes, control flow direction, regulate and control parameters (temperature, pressure and flow) of a transport medium, and are classified into shut-off valves, check valves, regulating valves, and the like according to their functions.

The utility model discloses a chinese utility model patent that current patent publication number is CN214171366U discloses a prevent leaking outward self sealss valve, the gangbar reciprocate alright reciprocate with driving sealed piece, realize the control to the dead slot break-make, the leakproofness of leak protection is good, staggered relation of connection about only can producing between gangbar and the baffle, can reduce the friction between gangbar and the baffle like this to the linkage is convenient for change, makes the life of this valve.

When the valve is used, the control of the on-off of the dead slot is realized through the sealing block, friction can occur between the sealing block and the baffle plate, and therefore after the valve is used for a long time, the sealing block can be worn and damaged, the sealing block can not seal the dead slot, the possibility of leakage easily occurs, and the high-pressure gas sealing valve is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-pressure gas seal valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-pressure sealing valve comprises a valve body, wherein a valve seat is arranged inside the valve body, a valve channel penetrating through the valve body is arranged in the middle of the valve seat, a valve core used for controlling the on-off of the valve channel is connected in a sliding mode inside the valve seat, the top end of the valve core is rotatably connected with a valve rod used for driving the valve core to move inside the valve seat, the top end of the valve rod penetrates through the valve seat and the valve body, third sealing rings used for increasing the sealing performance between the valve core and the valve seat are arranged at the upper end and the lower end of the valve core, and the high-pressure sealing valve further comprises a pressing assembly;

the abutting assembly is used for driving the valve body to always abut against the valve seat, and the abutting assembly is located inside the valve core.

As a further aspect of the present invention: the pressing component comprises two groups of annular sliding grooves located on the surface of the valve core, the third sealing ring is connected to the inside of the annular sliding grooves in a sliding mode, two groups of annular sliding cavities are arranged inside the valve core and communicated with the annular sliding grooves, multiple groups of sleeves are fixed on the inner wall of each annular sliding cavity and are arranged in an annular mode, sliding plates are connected to the inside of the sleeves in a sliding mode, a sliding rod is fixed to one end, close to the third sealing ring, of each sliding plate, the other end of each sliding rod is fixedly connected with the third sealing ring, a spring is fixed to the other end of each sliding plate, and the other end of each spring is fixedly connected with the corresponding sleeve.

As a further aspect of the present invention: the valve body top can be dismantled and be connected with the valve gap, the middle part of valve gap is equipped with the perforation of being convenient for the valve rod to pass, just the valve rod with perforation threaded connection.

As a further aspect of the present invention: the bottom mounting of valve gap has first mounting panel, the top of valve body is fixed with the second mounting panel, just one side equidistance of first mounting panel is equipped with the bolt that the multiunit is used for connecting first mounting panel and second mounting panel.

As a further aspect of the present invention: and a second sealing ring for increasing the sealing property between the valve seat and the valve rod is arranged at the top end of the valve seat.

As a further aspect of the present invention: the inside first sealing washer that is used for increasing the leakproofness between valve body and the valve rod that is equipped with in the top of valve body.

As a further aspect of the present invention: and a handle convenient for rotating the valve rod is fixed at the top end of the valve rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a be equipped with the third sealing washer, can increase the leakproofness between case and the disk seat, through being equipped with to press the subassembly for the third sealing washer can offset all the time with the disk seat and press, avoids the long-time removal of third sealing washer to take place wearing and tearing and lead to the unable condition closely laminated with the disk seat of third sealing washer, thereby can not appear because the third sealing washer damages and take place the condition of leaking, the possibility of outer hourglass has appeared in the significantly reduced, simple structure, convenient to use.

The utility model discloses a be equipped with the second sealing washer and can increase the leakproofness between valve rod and the disk seat, can increase the leakproofness between valve rod and the valve body through being equipped with first sealing washer to make this valve have three-layer seal structure, further improved the sealed effect of valve body, thereby can effectual extension valve body's life.

Drawings

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

Fig. 2 is the internal structure schematic diagram of the middle valve body of the present invention.

Fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention.

Wherein: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a valve core; 5. a valve seat; 6. a valve way; 7. a first seal ring; 8. a second seal ring; 9. an annular chute; 10. a third seal ring; 11. an annular sliding cavity; 12. a sleeve; 13. a sliding plate; 14. a slide bar; 15. a spring; 16. a first mounting plate; 17. a second mounting plate; 18. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, in an embodiment of the present invention, a high-pressure sealing valve includes a valve body 1, a valve seat 5 is disposed inside the valve body 1, a valve passage 6 penetrating through the valve body 1 is disposed in the middle of the valve seat 5, a valve element 4 for controlling the on-off of the valve passage 6 is slidably connected inside the valve seat 5, a valve rod 3 for driving the valve element 4 to move inside the valve seat 5 is rotatably connected to the top end of the valve element 4, the valve rod 3 can drive the valve element 4 to move up and down, so that the valve element 4 can control the on-off of the valve passage 6, the top end of the valve rod 3 penetrates through the valve seat 5 and the valve body 1, third sealing rings 10 for increasing the sealing performance between the valve element 4 and the valve seat 5 are disposed at the upper and lower ends of the valve element 4, and a pressing assembly is further included;

the pressing component is used for driving the valve body 1 to be always pressed against the valve seat 5, the situation that the third sealing ring 10 cannot be tightly attached to the valve seat 5 due to abrasion caused by long-time movement of the third sealing ring 10 is avoided, the situation that leakage occurs due to damage of the third sealing ring 10 is avoided, the possibility of leakage is greatly reduced, and the pressing component is located inside the valve core 4.

The pressing component comprises two groups of annular sliding chutes 9 positioned on the surface of the valve core 4, the third sealing ring 10 is connected inside the annular sliding chutes 9 in a sliding manner, two groups of annular sliding cavities 11 are arranged inside the valve core 4, the annular sliding cavities 11 are communicated with the annular sliding chutes 9, a plurality of groups of sleeves 12 are fixed on the inner wall of the annular sliding cavities 11, the plurality of groups of sleeves 12 are arranged in an annular manner, a sliding plate 13 is connected inside the sleeve 12 in a sliding manner, a sliding rod 14 is fixed at one end of the sliding plate 13 close to the third sealing ring 10, the other end of the sliding rod 14 is fixedly connected with the third sealing ring 10, a spring 15 is fixed at the other end of the sliding plate 13, the other end of the spring 15 is fixedly connected with the sleeve 12, when the valve core 4 is positioned at the valve passage 6, the spring 15 can drive the sliding plate 13 to move inside the sleeve 12 all the time under the action of the spring 15, the sliding plate 13 can drive the sliding rod 14 to move, so that the sliding rod 14 can press the third sealing ring 10, and the third sealing ring 10 can slide in the annular chute 9, so that the third sealing ring 10 can always press against the valve seat 5.

The valve cover 2 is detachably connected to the upper portion of the valve body 1, a through hole convenient for the valve rod 3 to penetrate is formed in the middle of the valve cover 2, the valve rod 3 is connected with the through hole in a threaded mode, the valve rod 3 can be screwed into or out of the valve body 1, the valve rod 3 can drive the valve core 4 to move in the valve seat 5, and the valve channel 6 is controlled to be opened and closed.

The bottom mounting of valve gap 2 has first mounting panel 16, the top of valve body 1 is fixed with second mounting panel 17, just one side equidistance of first mounting panel 16 is equipped with the multiunit and is used for connecting the bolt 18 of first mounting panel 16 with second mounting panel 17, can be connected fixedly first mounting panel 16 and second mounting panel 17 through bolt 18 to can realize being connected fixedly to valve body 1 and valve gap 2.

The top of disk seat 5 is equipped with the second sealing washer 8 that is used for increasing the leakproofness between disk seat 5 and the valve rod 3, can increase the leakproofness between valve rod 3 and disk seat 5 through being equipped with second sealing washer 8, reduces the possibility of taking place to leak between valve rod 3 and the disk seat 5.

The inside first sealing washer 7 that is used for increasing leakproofness between valve body 1 and the valve rod 3 that is equipped with in top of valve body 1, can increase the leakproofness between valve rod 3 and the valve body 1 through being equipped with first sealing washer 7, reduce the possibility of taking place to leak between valve rod 3 and the valve body 1.

Example 2

Referring to fig. 1 to fig. 3, the difference from embodiment 1 is: the top of valve rod 3 is fixed with the handle of being convenient for rotate valve rod 3, and the setting of handle makes valve rod 3 more convenient when rotating.

The utility model discloses a theory of operation is:

when the valve rod 3 is rotated, the valve rod 3 can be screwed in or out of the valve body 1, so that the valve rod 3 can drive the valve core 4 to move in the valve seat 5, the on-off of the valve channel 6 is controlled, when the valve core 4 is positioned at the valve channel 6, the spring 15 can always drive the sliding plate 13 to move in the sleeve 12 under the action of the spring 15, the sliding plate 13 can drive the sliding rod 14 to move, so that the sliding rod 14 can support and press the third sealing ring 10, the third sealing ring 10 can slide in the annular chute 9, the third sealing ring 10 can always support and press the valve seat 5, the situation that the third sealing ring 10 cannot be tightly attached to the valve seat 5 due to abrasion caused by long-time movement of the third sealing ring 10 is avoided, and the situation that leakage occurs because the third sealing ring 10 is damaged is avoided, the possibility of leakage is greatly reduced, the sealing performance between the valve rod 3 and the valve seat 5 can be increased by arranging the second sealing ring 8, the sealing performance between the valve rod 3 and the valve body 1 can be increased by arranging the first sealing ring 7, so that the valve has a three-layer sealing structure, and the sealing effect of the valve body 1 is further improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims

1. A high-pressure gas sealing valve comprises a valve body (1), wherein a valve seat (5) is arranged inside the valve body (1), a valve channel (6) penetrating through the valve body (1) is arranged in the middle of the valve seat (5), a valve core (4) used for controlling the on-off of the valve channel (6) is connected in a sliding mode inside the valve seat (5), the top end of the valve core (4) is rotatably connected with a valve rod (3) used for driving the valve core (4) to move inside the valve seat (5), the top end of the valve rod (3) penetrates through the valve seat (5) and the valve body (1) and is arranged, and third sealing rings (10) used for increasing the sealing performance between the valve core (4) and the valve seat (5) are arranged at the upper end and the lower end of the valve core (4) respectively;

the pressing component is used for driving the valve body (1) to be always pressed against the valve seat (5), and the pressing component is located inside the valve core (4).

2. The high-pressure gas sealing valve according to claim 1, wherein the pressing component comprises two sets of annular sliding grooves (9) located on the surface of the valve core (4), the third sealing ring (10) is slidably connected inside the annular sliding grooves (9), two sets of annular sliding cavities (11) are arranged inside the valve core (4), the annular sliding cavities (11) are communicated with the annular sliding grooves (9), a plurality of sets of sleeves (12) are fixed on the inner wall of the annular sliding cavities (11), the plurality of sets of sleeves (12) are arranged in an annular shape, a sliding plate (13) is slidably connected inside the sleeves (12), a sliding rod (14) is fixed at one end of the sliding plate (13) close to the third sealing ring (10), the other end of the sliding rod (14) is fixedly connected with the third sealing ring (10), and a spring (15) is fixed at the other end of the sliding plate (13), the other end of the spring (15) is fixedly connected with the sleeve (12).

3. The high-pressure gas sealing valve according to claim 1, characterized in that a valve cover (2) is detachably connected above the valve body (1), a through hole for a valve rod (3) to pass through is formed in the middle of the valve cover (2), and the valve rod (3) is in threaded connection with the through hole.

4. A high pressure gas sealing valve according to claim 3, characterized in that the bottom end of the valve cover (2) is fixed with a first mounting plate (16), the top end of the valve body (1) is fixed with a second mounting plate (17), and one side of the first mounting plate (16) is equidistantly provided with a plurality of groups of bolts (18) for connecting the first mounting plate (16) and the second mounting plate (17).

5. A high-pressure gas-tight seal valve according to claim 1, characterized in that the top end of the valve seat (5) is provided with a second seal (8) for increasing the sealing between the valve seat (5) and the valve stem (3).

6. A high-pressure gas-tight seal valve according to claim 1, characterized in that the top end of the valve body (1) is internally provided with a first seal ring (7) for increasing the tightness between the valve body (1) and the valve stem (3).

7. A high pressure gas tight valve according to claim 1, characterized in that a handle for rotating the valve stem (3) is fixed to the top end of the valve stem (3).