CN117803717A - Guide post with built-in pressure relief hole, electromagnetic gas emergency cut-off valve and production process thereof - Google Patents
Guide post with built-in pressure relief hole, electromagnetic gas emergency cut-off valve and production process thereof Download PDFInfo
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- CN117803717A CN117803717A CN202311861471.7A CN202311861471A CN117803717A CN 117803717 A CN117803717 A CN 117803717A CN 202311861471 A CN202311861471 A CN 202311861471A CN 117803717 A CN117803717 A CN 117803717A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 54
- 238000007906 compression Methods 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a built-in pressure relief hole type guide post, an electromagnetic gas emergency cut-off valve and a production process thereof, wherein the built-in pressure relief hole type guide post comprises: the compression section is connected with one end of the extension section, the surface, close to the extension section, of the compression section is a compression surface, the compression surface is located on one side, away from the baffle, of the valve plate in the gas shut-off valve, the valve plate is provided with a through hole for the extension section to pass through, the compression surface is used for opening and closing the through hole in the valve plate in the gas shut-off valve, the compression section, the extension section or the valve rod is connected to the valve plate through an elastic piece, the elastic piece is used for keeping the compression surface to compress on the valve plate, and the extension section is provided with a pressure relief hole. The guide post with the built-in pressure relief hole and the electromagnetic gas emergency cut-off valve and the production process thereof solve the problem of production cost increase caused by the separation and arrangement of the pressure relief piece and the assembly rod in the prior art.
Description
Technical Field
The invention relates to a gas shut-off valve accessory, in particular to a guide post with a built-in pressure relief hole, an electromagnetic gas emergency shut-off valve and a production process thereof.
Background
As shown in fig. 1 and 2, in the prior art, a gas shutoff valve includes: the valve comprises a valve body, a valve rod, a rod driving mechanism, a valve block and a pressure release mechanism, wherein an air inlet hole is formed in one end of the valve body, an air outlet hole is formed in the other end of the valve body, a baffle is formed in the middle of the valve body and separates the air inlet hole from the air outlet hole, the baffle is provided with an opening hole and a closing hole which are used for communicating the air inlet hole and the air outlet hole, the valve block is arranged in the valve body and used for opening and closing the opening hole, the valve block is arranged on the valve rod, the valve rod is driven to lift by the rod driving mechanism, the pressure release mechanism is arranged at the joint of the valve rod and the valve block, the air inlet hole is formed above the baffle, the air pressure above the air inlet hole is very large when the valve block is closed for a certain time, the pressure release is needed, and the valve block can be kept away from the baffle, so that the pressure release mechanism is needed. Whereas in general the pressure relief mechanism comprises: the valve plate top surface is sunken to form the recess, install the pressure release piece in the recess, the recess surrounds outside the pressure release hole, the pressure release hole is offered on the valve plate, the pressure release piece is pressed from both sides tightly between equipment pole and valve rod, pass through threaded connection between valve rod and the equipment pole, valve plate can go up and down with the equipment pole relative valve rod, equipment pole bottom threaded connection has the nut, install first spring between nut and the valve plate, first spring is passed by the equipment pole, when the inlet port atmospheric pressure is big, when pulling open the valve plate, the valve plate has the resistance to reduce with the equipment pole relatively, the pressure release hole of seting up on the valve plate is opened by the pressure release piece, realize the pressure release. The decompression mechanism in the prior art can realize decompression, but the decompression mechanism still has the defects that: the pressure release piece is assembled on the valve rod through the assembly rod, and the pressure release piece and the assembly rod are required to be produced independently, so that the production cost is increased, the pressure release can be realized only by producing one more pressure release piece, the cost of one more pressure release piece is reduced, and the market competitiveness is reduced.
Disclosure of Invention
The invention provides a guide post with a built-in pressure relief hole, an electromagnetic gas emergency cut-off valve and a production process thereof, and solves the problem of production cost increase caused by separation of a pressure relief piece and an assembly rod in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention first discloses a built-in pressure relief hole type guide post, which comprises: the device comprises a compressing section and an extending section, wherein the compressing section is connected with one end of the extending section, the surface, close to the extending section, of the compressing section is a compressing surface, the compressing surface is located on one side, away from a baffle, of a valve plate in a gas shut-off valve, a through hole for the extending section to pass through is formed in the valve plate, an opening hole is formed in the valve plate opening and closing baffle, the baffle in the electromagnetic gas emergency shut-off valve is used for allowing air to enter from one side of the valve plate, the compressing surface is used for opening and closing the through hole in the valve plate in the gas shut-off valve, an elastic piece is mounted on the valve plate and used for keeping the compressing surface compressed on the valve plate, a pressure relief hole is formed in the extending section, and the pressure relief hole can be communicated with cavities on two sides of the baffle, and the compressing section and the extending section are integrally formed in a die of a guide column with the built-in pressure relief hole.
Preferably, the pressure relief hole includes: the first hole section and the second hole section, the terminal surface that the extension section deviates from the section of compressing tightly is sunken to form first hole section, and the second hole section has been seted up to the extension section lateral wall, and second hole section and first hole section intercommunication, second hole section are located the extension section and are close to the position of compressing tightly the section.
Preferably, the connection part of the compression section and the extension section is recessed to form an annular groove, and a sealing ring is arranged at the annular groove.
Preferably, the sealing ring is connected with the inner wall of the annular groove through an adhesive layer.
Preferably, the elastic piece is a second spring, the second spring is used for the extension section to pass through, the extension section is connected with the mounting disc, and the second spring is positioned between the valve plate and the mounting disc.
Preferably, the mounting plate is threadedly connected to the extension.
Preferably, the end surface of the compression section is recessed to form an insertion hole, the insertion hole is used for inserting the valve rod, the side wall of the compression section is provided with a mounting hole, the mounting hole is used for a mounting piece to penetrate through, and the mounting piece connects the compression section with the valve rod.
The invention also discloses an electromagnetic gas emergency cut-off valve, which comprises: valve body, valve block and as above built-in pressure release hole formula guide pillar.
The invention also discloses a production process of the electromagnetic gas emergency cut-off valve, which comprises the following steps:
s1, manufacturing a valve body, wherein a baffle is arranged in the middle of the valve body, an opening hole and a closing hole are formed in the baffle, a built-in pressure relief hole type guide column is manufactured, and the built-in pressure relief hole type guide column comprises: the compression section is connected with one end of the extension section, the surface, close to the extension section, of the compression section is a compression surface, the compression surface is positioned on one side, away from the baffle, of the valve block in the gas shut-off valve, a through hole for the extension section to pass through is formed in the valve block, the compression surface is used for opening and closing the through hole in the valve block in the gas shut-off valve, the compression section, the extension section or the valve rod is connected to the valve block through an elastic piece, the elastic piece is used for keeping the compression surface compressed on the valve block, the extension section is provided with a pressure relief hole, the pressure relief hole can be used for communicating a cavity above the valve block with a cavity below the valve block, and the compression section and the extension section are integrally formed in a die of the built-in pressure relief hole type guide pillar;
s2, assembling a valve rod: s21, enabling an extension section of the guide post with the built-in pressure relief hole to pass through a perforation on the valve plate, and enabling the extension section of the guide post with the built-in pressure relief hole to pass through the elastic piece; s22, connecting the end part of the extension section, which is far away from the valve rod, with the mounting disc; s23, installing the compaction section in the guide post with the built-in pressure relief hole on the valve rod.
Compared with the prior art, the invention has the following beneficial effects:
the outside diameter that sets up the section of compressing tightly in this application is greater than the outside diameter of extension section to formed the compression face, the perforation on the compression face can shutoff valve block, in order to reach when the valve rod reduces to closing the valve block and go up the open-close hole in the gas trip valve septum, the purpose of perforating on the compression face can seal the valve block under the elastic component elasticity, thereby realizes cutting off completely of gas. Then, set up the pressure release hole of seting up on the extension in this application, realized when the valve block was opened to the atmospheric pressure and is opened the hole, when atmospheric pressure was great, promoted the valve block and take place the displacement relative valve rod, with pressure release hole one end and inlet port intercommunication, the pressure release hole other end is all the time with venthole intercommunication, just so can reach the effect of pressure release, not realize the pressure release through setting up the clearance size between extension and the perforation inner wall simultaneously, but directly set up the pressure release hole on the extension, the pressure release speed is also faster. The extension section and the compaction section can be integrally formed in the die to manufacture a part, so that the increase of production cost caused by the need of producing the pressure release sheet in the prior art is avoided, and the market competitiveness of enterprises is greatly improved. The guide post structure with the built-in pressure relief hole is used in valves with high inlet and low outlet (namely, valves with higher fluid pressure and higher sealing pressure).
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a conventional pressure relief mechanism.
Fig. 2 is a cross-sectional view of a prior art pressure relief mechanism.
Fig. 3 is a schematic structural diagram of a guide post with a built-in pressure relief hole in the present application.
Fig. 4 is a cross-sectional view of a guide post with a built-in pressure relief hole in the present application.
Fig. 5 is a cross-sectional view of the built-in pressure release hole type guide post in the electromagnetic gas emergency shut-off valve in embodiment 1.
Fig. 6 is a cross-sectional view of the guide post with the pressure release hole in the electromagnetic gas emergency shut-off valve in example 2.
Reference numerals: compression section 1, compression face 11, extension section 2, pressure release hole 20, first hole section 201, second hole section 202, annular groove 3, sealing washer 4, elastic member 5, valve block 6, perforation 60, valve body 7, opening and closing hole 70, valve cover 71, valve rod 8, pressure release piece 91, assembly rod 92, first spring 93, mounting disc 10.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
example 1:
as shown in fig. 3 to 5, this embodiment discloses a guide post with a built-in pressure relief hole, which includes: the valve plate 1 is arranged on one side of the valve plate 6 in the gas shut-off valve, the valve plate 6 is opened and closed on the baffle, the electromagnetic gas emergency shut-off valve is provided with a baffle which is used for air intake from one side of the valve plate 6, the valve plate 6 is provided with a perforation 60 for the extending section 2 to pass through, the compression surface 11 is used for opening and closing the perforation 60 on the valve plate 6 in the gas shut-off valve, the valve plate 6 is provided with an elastic piece 5, the elastic piece 5 is used for keeping the compression surface 11 to be compressed on the valve plate 6, the extending section 2 is provided with a pressure relief hole 20, the pressure relief hole 20 can be used for communicating cavities on two sides of the baffle, and the compression section 1 and the extending section 2 are integrally formed in a die of a built-in pressure relief hole type guide pillar.
The pressure relief hole 20 includes: the first hole section 201 and the second hole section 202, the end face of the extension section 2, which is far away from the compression section 1, is recessed to form the first hole section 201, the second hole section 202 is formed in the side wall of the extension section 2, the second hole section 202 is communicated with the first hole section 201, and the second hole section 202 is located at the position of the extension section 2, which is close to the compression section 1. Therefore, after the second hole section 202 emerges from the valve plate 6, the second hole section 202 can be communicated with the air inlet hole, and then the second hole section 202 is communicated with the air outlet hole through the first hole section 201, so that air pressure between the air inlet hole and the air outlet hole is balanced, the valve plate 6 can be improved to a position for opening the opening hole 70 by the valve rod 8 and the rod driving mechanism, and the influence of the air pressure on the opening work of the valve plate 6 is avoided. The pressing surface 11 can close the through-hole 60 in the valve plate 6 when the second hole section 202 does not protrude from the valve plate 6.
The joint of the compression section 1 and the extension section 2 is recessed to form an annular groove 3, and a sealing ring 4 is arranged at the annular groove 3. The sealing effect of the pressing surface 11 for sealing the through hole 60 on the valve plate 6 is improved. The annular groove 3 positions the sealing ring 4, so that the probability that the sealing ring 4 is separated from the extension section 2 and the compression section 1 is reduced.
The sealing ring 4 is connected with the inner wall of the annular groove 3 through an adhesive layer. It is achieved that the sealing ring 4 can be mounted in the annular groove 3.
The elastic piece 5 is a second spring, the second spring is used for the extension section 2 to pass through, the extension section 2 is connected with the mounting disc 10, and the second spring is positioned between the valve plate 6 and the mounting disc 10. In this case, the elastic member 5 is a second spring, and the elastic member 5 is mounted in a manner similar to that of the second spring, however, other mounting manners of the elastic member 5 are also applicable.
The mounting plate 10 is screwed to the extension 2. The mounting of the mounting plate 10 on the extension 2 is achieved.
The pressure release hole 20 fully passes through the extension section 2 of the elastic piece 5, so that the second hole section 202 can be communicated with the air inlet hole, and the first hole section 201 is always communicated with the air outlet hole.
If a certain section of the extension section 2 is arranged to be small, when the valve rod 8 is not guided well, the deflection of the valve rod 8 is inevitably caused, and the position for blocking the pressure relief is caused, so that the extension section 2 with the pressure relief hole 20 uniformly arranged is arranged, the extension section 2 can guide the valve plate 6 to move, and the second hole section 202 cannot be influenced to enter the air inlet hole.
Example 2:
this embodiment differs from embodiment 1 in that: the mounting positions of the elastic members 5 are different, and other structures are the same.
As shown in fig. 6, a valve cover 71 is fastened to the valve body 7, the valve cover 71 allows the valve rod 8 to pass through, an elastic member 5 is installed between the valve cover 71 and the valve plate 6, and the elastic member 5 allows the valve rod 8 to pass through.
Example 3:
the embodiment discloses an electromagnetic type gas emergency cut-off valve, includes: valve body 7, valve plate 6, and built-in relief hole guide post as described in example 1 or example 2.
Example 4:
the embodiment discloses an electromagnetic gas emergency cut-off valve production process, which comprises the following steps:
s1, manufacturing a valve body 7, wherein a baffle is arranged in the middle of the valve body 7, an opening hole 70 is formed in the baffle, a guide column with a built-in pressure relief hole is manufactured, and the guide column with the built-in pressure relief hole comprises: the gas shut-off valve comprises a compression section 1 and an extension section 2, wherein the compression section 1 is connected with one end of the extension section 2, the surface, close to the extension section 2, of the compression section 1 is a compression surface 11, the compression surface 11 is positioned on one side, away from a baffle, of a valve plate 6 in the gas shut-off valve, the valve plate 6 is provided with a through hole 60 for the extension section 2 to pass through, the compression surface 11 is used for opening and closing the through hole 60 on the valve plate 6 in the gas shut-off valve, the compression section 1, the extension section 2 or a valve rod 8 is connected to the valve plate 6 through an elastic piece 5, the elastic piece 5 is used for keeping the compression surface 11 compressed on the valve plate 6, the extension section 2 is provided with a pressure relief hole 20, the pressure relief hole 20 can be used for communicating a cavity above the valve plate 6 with a cavity below the valve plate 6, and the compression section 1 and the extension section 2 are integrally molded in a die with a built-in pressure relief hole type guide column;
s2, assembling a valve rod 8: s21, enabling the extension section 2 of the guide post with the built-in pressure relief hole to pass through the through hole 60 on the valve plate 6, and enabling the extension section 2 of the guide post with the built-in pressure relief hole to pass through the elastic piece 5; s22, connecting the end part of the extension section 2, which is far away from the valve rod 8, with the mounting disc 10; s23, installing the compression section 1 in the guide post with the built-in pressure relief hole on the valve rod 8.
The compression section 1 and the extension section 2 are integrally formed in the die with the built-in pressure relief hole type guide pillar, the die is not required to be opened twice, the die opening times are reduced, the die cost is reduced, and the production efficiency is improved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. Built-in pressure release hole formula guide pillar, its characterized in that includes: the device comprises a compressing section and an extending section, wherein the compressing section is connected with one end of the extending section, the surface, close to the extending section, of the compressing section is a compressing surface, the compressing surface is located on one side, away from a baffle, of a valve plate in a gas shut-off valve, a through hole for the extending section to pass through is formed in the valve plate, an opening hole is formed in the valve plate opening and closing baffle, air is introduced from one side of the valve plate in the electromagnetic gas emergency shut-off valve, the compressing surface is used for opening and closing the through hole in the valve plate in the gas shut-off valve, an elastic piece is mounted on the valve plate and used for keeping the compressing surface compressed on the valve plate, a pressure relief hole is formed in the extending section, the pressure relief hole can be used for communicating cavities on two sides of the baffle, and the compressing section and the extending section are integrally formed in a die of a built-in pressure relief hole type guide pillar.
2. The internally-disposed pressure relief vent guide post of claim 1, wherein the pressure relief vent comprises: the first hole section and the second hole section, the terminal surface that the extension section deviates from the section of compressing tightly is sunken to form first hole section, and the second hole section has been seted up to the extension section lateral wall, and second hole section and first hole section intercommunication, second hole section are located the extension section and are close to the position of compressing tightly the section.
3. The guide post with built-in pressure relief holes according to claim 2, wherein the connection of the compression section and the extension section is recessed to form an annular groove, and a sealing ring is installed at the annular groove.
4. The post with built-in pressure relief holes of claim 3, wherein the seal ring is connected to the inner wall of the annular groove by an adhesive layer.
5. The post of any one of claims 1 to 4, wherein the resilient member is a second spring, the second spring is provided for the extension section to pass through, the extension section is connected to a mounting plate, and the second spring is located between the valve plate and the mounting plate.
6. The post with built-in pressure relief holes of claim 5, wherein the mounting plate is threadably coupled to the extension.
7. The post of claim 5, wherein the compression section has a recessed end surface to form an insertion hole into which the valve stem is inserted, and wherein the compression section has a mounting hole in a side wall through which a mounting member passes, the mounting member connecting the compression section to the valve stem.
8. Electromagnetic gas emergency cut-off valve, its characterized in that includes: valve body, valve block and built-in pressure relief hole guide post according to any of claims 1 to 7.
9. The production process of the electromagnetic gas emergency cut-off valve is characterized by comprising the following steps of:
s1, manufacturing a valve body, wherein a baffle is arranged in the middle of the valve body, an opening hole and a closing hole are formed in the baffle, a built-in pressure relief hole type guide column is manufactured, and the built-in pressure relief hole type guide column comprises: the compression section is connected with one end of the extension section, the surface, close to the extension section, of the compression section is a compression surface, the compression surface is positioned on one side, away from the baffle, of the valve block in the gas shut-off valve, a through hole for the extension section to pass through is formed in the valve block, the compression surface is used for opening and closing the through hole in the valve block in the gas shut-off valve, the compression section, the extension section or the valve rod is connected to the valve block through an elastic piece, the elastic piece is used for keeping the compression surface compressed on the valve block, the extension section is provided with a pressure relief hole, the pressure relief hole can be used for communicating a cavity above the valve block with a cavity below the valve block, and the compression section and the extension section are integrally formed in a die of the built-in pressure relief hole type guide pillar;
s2, assembling a valve rod: s21, enabling an extension section of the guide post with the built-in pressure relief hole to pass through a perforation on the valve plate, and enabling the extension section of the guide post with the built-in pressure relief hole to pass through the elastic piece; s22, connecting the end part of the extension section, which is far away from the valve rod, with the mounting disc; s23, installing the compaction section in the guide post with the built-in pressure relief hole on the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311861471.7A CN117803717A (en) | 2023-12-29 | 2023-12-29 | Guide post with built-in pressure relief hole, electromagnetic gas emergency cut-off valve and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311861471.7A CN117803717A (en) | 2023-12-29 | 2023-12-29 | Guide post with built-in pressure relief hole, electromagnetic gas emergency cut-off valve and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117803717A true CN117803717A (en) | 2024-04-02 |
Family
ID=90419808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311861471.7A Pending CN117803717A (en) | 2023-12-29 | 2023-12-29 | Guide post with built-in pressure relief hole, electromagnetic gas emergency cut-off valve and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117803717A (en) |
-
2023
- 2023-12-29 CN CN202311861471.7A patent/CN117803717A/en active Pending
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