CN215257854U - Novel high-pressure stop valve - Google Patents
Novel high-pressure stop valve Download PDFInfo
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- CN215257854U CN215257854U CN202121890361.XU CN202121890361U CN215257854U CN 215257854 U CN215257854 U CN 215257854U CN 202121890361 U CN202121890361 U CN 202121890361U CN 215257854 U CN215257854 U CN 215257854U
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- transmission rod
- sealing
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- 210000004907 gland Anatomy 0.000 claims abstract description 102
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
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Abstract
The utility model provides a novel high pressure stop valve, including valve body and valve clack, the valve body is connected with valve clack actuating mechanism through the gland, and valve clack actuating mechanism is including wearing to establish the transfer line on the gland, and the transfer line is established last gland and swivel nut on the transfer line through the slip cover and is connected with the gland, goes up the gland seal and sets up between gland and transfer line, and the swivel nut cover is established on the gland, and the swivel nut will go up the gland and compress tightly to the gland. The utility model adopts a three-layer sealing design at one end of the transmission drive, thereby ensuring the sealing reliability of the valve in the operation process and meeting the requirement of high pressure; the double-layer sealing design is arranged on the outer side of the valve clack, so that the sealing reliability is further improved; the thrust bearing is arranged between the transmission rod and the upper gland and between the transmission rod and the gland, so that the transmission rod can move up and down and can bear high pressure to avoid random movement; the sealing form that the metal cutting edge is matched with the nonmetal conical surface is arranged on the air inlet of the stop valve, so that the sealing effect is better.
Description
Technical Field
The utility model relates to a valve field especially relates to a novel high pressure stop valve.
Background
The shut-off valve is also called a shut-off 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 operation force is the friction force of the valve rod and the packing and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve. Especially, the high-pressure stop valve is applied to the high-pressure field, and the valve closing force is required to be large enough. Therefore, the high-pressure stop valve in the prior art is easy to generate the faults of valve stem bending or leakage caused by poor sealing in use.
SUMMERY OF THE UTILITY MODEL
To foretell technical problem, the utility model provides a novel high pressure stop valve for solve the easy sealed problem that does not lead to revealing of high pressure stop valve among the prior art.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows:
a novel high-pressure stop valve comprises a valve body and a valve clack arranged in the valve body, wherein the valve body is connected with a valve clack driving mechanism through a gland, the valve clack driving mechanism comprises a transmission rod penetrating through the gland, and the transmission rod is in threaded connection with the valve clack; the transmission rod is connected with the gland through an upper gland and a threaded sleeve which are sleeved on the transmission rod in a sliding mode, the upper gland is arranged between the gland and the transmission rod in a sealing mode, the threaded sleeve is sleeved on the gland, and the threaded sleeve tightly presses the upper gland to the gland.
Preferably, the threaded sleeve is connected with the external thread of the gland through an internal thread, and a fastening screw is arranged between the threaded sleeve and the gland.
Preferably, the valve clack is sleeved on the transmission rod, the gland is sleeved on the valve clack, and the gland is in sliding sealing connection with the valve clack.
Preferably, the gland is connected with the internal thread of the valve body through external threads, and the gland is connected with the valve body in a sealing mode.
Preferably, still be equipped with the holding tank that holds the gland on the gland, the transfer line passes holding tank and last gland are equipped with circumference ring board on the transfer line, and circumference ring board is located between last gland and gland, and circumference ring board is connected with last gland and gland through thrust bearing respectively.
Preferably, the transmission rod is sealed with the upper gland and the thrust bearing through a flooding plug seal.
Preferably, a handle is arranged at the end of the transmission rod.
Preferably, a pin is further arranged between the valve clack and the valve body and used for limiting the moving direction of the valve clack, and the pin is in sliding connection with the valve clack.
Preferably, the valve clack is also provided with a plug screw for sealing the air inlet of the valve body.
Preferably, an annular metal cutting edge is arranged in the air inlet, and a sealing conical surface matched with the metal cutting edge is arranged on the periphery of the screw plug.
The utility model has the advantages that: the utility model adopts the three-layer sealing design of the upper gland, the gland and the threaded sleeve which are arranged at the outer side of the transmission rod at one end of the transmission drive, thereby ensuring the sealing reliability of the valve in the operation process, meeting the requirement of high pressure and ensuring that the service pressure can reach 150 MPa; the double-layer sealing design of arranging the gland and the valve body on the outer side of the valve clack further improves the sealing reliability; the thrust bearing is arranged between the transmission rod and the upper gland and between the transmission rod and the gland, so that the transmission rod can move up and down and can bear high pressure to avoid random movement; the sealing form that the metal cutting edge is matched with the nonmetal conical surface is arranged on the air inlet of the stop valve, so that the sealing effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the valve flap of the present invention.
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 any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a novel high-pressure stop valve according to an embodiment of the present invention includes a valve body 9 and a valve flap 8 disposed in the valve body 9, the valve body 9 is provided with an air inlet 92 and an air outlet 91, the valve flap 8 can move in the valve body 9, and the valve flap 8 opens and closes a passage between the air inlet 92 and the air outlet 91 by moving in the valve body 9, so as to control the opening and closing of the high-pressure stop valve; the valve body 9 is connected with a valve clack driving mechanism through a gland 10, the valve clack driving mechanism is connected with the valve clack 8, and the valve clack driving mechanism is connected with the gland 10 in a sliding mode so that the valve clack driving mechanism can push the valve clack 8 to move. Specifically, the valve clack driving mechanism comprises a transmission rod 16 penetrating through the gland 10, the transmission rod 16 is in sliding connection with the gland 10 through a sliding bearing 14, and the other end of the transmission rod 16 is in threaded connection with the valve clack 8; the transmission rod 16 is connected with the gland 10 through an upper gland 15 and a threaded sleeve 1 which are sleeved on the transmission rod 16 in a sliding manner; the upper gland 15 is of a T-shaped structure, the vertical part of the upper gland 15 is arranged between the gland 10 and the transmission rod 16, the inner side of the upper gland 15 is sealed with the transmission rod 16 through a check ring 6 and a small O-shaped ring 4, and the outer side of the upper gland 15 is sealed with the gland 10 through a large O-shaped ring 2; the threaded sleeve 1 is sleeved on the gland 10, and the transverse part of the upper gland 15 is arranged between the threaded sleeve 1 and the upper gland 1, so that the threaded sleeve 1 compresses the upper gland 15 towards the gland 10. In this embodiment, valve clack actuating mechanism is manual actuating mechanism, is convenient for control this high pressure stop valve through manual. The stop valve adopts a three-layer sealing design of an upper gland 15, a gland 10 and a threaded sleeve 1 which are arranged on the outer side of a transmission rod 16 at one end of a transmission drive, so that the sealing reliability of the valve in the operation process is ensured, the requirement of high pressure is met, and the service pressure can reach 150 MPa.
Preferably, the threaded sleeve 1 is connected with the external thread of the gland 10 through an internal thread, and the fastening screw 3 is arranged between the threaded sleeve 1 and the gland 10, so that the connection reliability is ensured.
Preferably, the valve flap 8 is sleeved on the end part of the transmission rod 16 far away from the upper gland 15, the gland 10 is sleeved on the valve flap 8, the gland 10 is in sliding connection with the valve flap 8, and a check ring 6 and a small O-shaped ring 4 are arranged between the gland 10 and the valve flap 8 for sealing; and the gland 10 is connected with the internal thread of the valve body 9 through an external thread, and the gland 10 is connected with the large O-shaped ring 2 of the valve body 9 in a sealing way. Through the double-layer sealing design that sets up gland 10 and valve body 9 in the valve clack outside to above-mentioned sealing washer and retaining ring all adopt polyurethane material to make, have further improved sealing reliability.
Preferably, one side of the gland 10, which is far away from the valve flap 8, is further provided with an accommodating groove for accommodating a vertical part of an upper gland 15 of a T-shaped structure, the transmission rod 16 penetrates through the accommodating groove and the upper gland 15, a circumferential ring plate is arranged on the transmission rod 16, a gap is formed between the lower end of the upper gland 15 and the bottom of the accommodating groove, the circumferential ring plate is positioned between the upper gland 15 and the gland 10, namely, in the gap, and the upper side and the lower side of the circumferential ring plate are respectively connected with the upper gland 15 and the gland 10 through a thrust bearing 12. The thrust bearing 12 allows the drive rod 16 to move up and down while being able to withstand high pressures without the drive rod 16 moving freely.
Preferably, the transmission rod 16 is sealed with the upper gland 15 and the thrust bearing 12 through the wiper seal 5, that is, the thrust bearing 12 located at the upper side is sealed with the transmission rod 16 and the upper gland 15 through the wiper seal 5, so that the sealing performance between the transmission rod 16 and the upper gland 15 is further improved, and the transmission rod 16 is ensured not to leak during sliding relative to the upper gland 15.
Preferably, the upper end of the transmission rod 16 remote from the flap 8 is provided with a handle 13.
Preferably, a pin 7 is further arranged between the valve flap 8 and the valve body 9 for limiting the moving direction of the valve flap 8, and the pin 7 is connected with the valve flap 8 in a sliding manner. Specifically, the valve clack 8 is provided with an axial groove 81 in sliding fit with the pin 7, and the pin 7 is in interference fit with the axial groove 81, so that the valve clack moves downwards without radial movement in the process of passing through, only allows the valve clack to move axially up and down, and prevents a sealing pair from being deviated in a repeated opening and closing process to cause sealing failure.
Preferably, the valve flap 8 is further provided with a plug screw 11 for sealing the air inlet 92 of the valve body 9; specifically, an annular metal cutting edge is arranged in the air inlet 92, a sealing conical surface matched with the metal cutting edge is arranged on the periphery of the screw plug 11, and the sealing effect is better through the sealing form of matching between the metal cutting edge and the non-metal conical surface.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A novel high-pressure stop valve comprises a valve body (9) and a valve clack (8) arranged in the valve body (9), and is characterized in that the valve body (9) is connected with a valve clack driving mechanism through a gland (10), the valve clack driving mechanism comprises a transmission rod (16) penetrating through the gland (10), and the transmission rod (16) is in threaded connection with the valve clack (8); the transmission rod (16) is connected with the gland (10) through an upper gland (15) and a threaded sleeve (1) which are sleeved on the transmission rod (16) in a sliding mode, the upper gland (15) is arranged between the gland (10) and the transmission rod (16) in a sealing mode, the threaded sleeve (1) is sleeved on the gland (10), and the upper gland (15) is pressed towards the gland (10) through the threaded sleeve (1).
2. The novel high-pressure stop valve according to claim 1, characterized in that the threaded sleeve (1) is connected with the external thread of the gland (10) through internal thread, and a fastening screw (3) is arranged between the threaded sleeve (1) and the gland (10).
3. The novel high-pressure stop valve as claimed in claim 1 or 2, characterized in that the valve flap (8) is sleeved on the transmission rod (16), the gland (10) is sleeved on the valve flap (8), and the gland (10) is connected with the valve flap (8) in a sliding and sealing manner.
4. The novel high-pressure stop valve according to claim 3, characterized in that the gland (10) is connected with the internal thread of the valve body (9) through external thread, and the gland (10) is connected with the valve body (9) in a sealing way.
5. The novel high-pressure stop valve according to claim 4, characterized in that the gland (10) is further provided with a receiving groove for receiving the upper gland (15), the transmission rod (16) passes through the receiving groove and the upper gland (15), the transmission rod (16) is provided with a circumferential ring plate, the circumferential ring plate is located between the upper gland (15) and the gland (10), and the circumferential ring plate is respectively connected with the upper gland (15) and the gland (10) through the thrust bearing (12).
6. The new high pressure shut-off valve according to claim 5, characterized in that the transmission rod (16) is sealed with the upper gland (15) and the thrust bearing (12) by means of a flood seal (5).
7. A novel high pressure shut-off valve as claimed in any one of claims 1 to 3, 5 and 6, characterised in that the end of the drive rod (16) is provided with a handle (13).
8. The novel high-pressure stop valve according to claim 7, characterized in that a pin (7) is further arranged between the valve clack (8) and the valve body (9) for limiting the moving direction of the valve clack (8), and the pin (7) is in sliding connection with the valve clack (8).
9. The novel high-pressure stop valve according to any one of claims 1-3, 5, 6 and 8, characterized in that the valve clack (8) is further provided with a plug screw (11) for sealing an air inlet (92) of the valve body (9).
10. The novel high-pressure stop valve according to claim 9, characterized in that an annular metal cutting edge is arranged in the air inlet (92), and a sealing conical surface matched with the metal cutting edge is arranged on the periphery of the screw plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121890361.XU CN215257854U (en) | 2021-08-13 | 2021-08-13 | Novel high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121890361.XU CN215257854U (en) | 2021-08-13 | 2021-08-13 | Novel high-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257854U true CN215257854U (en) | 2021-12-21 |
Family
ID=79497587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121890361.XU Active CN215257854U (en) | 2021-08-13 | 2021-08-13 | Novel high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257854U (en) |
-
2021
- 2021-08-13 CN CN202121890361.XU patent/CN215257854U/en active Active
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