CN109681655B - A push-pull valve that sealing performance is good for natural gas line - Google Patents
A push-pull valve that sealing performance is good for natural gas line Download PDFInfo
- Publication number
- CN109681655B CN109681655B CN201910058525.3A CN201910058525A CN109681655B CN 109681655 B CN109681655 B CN 109681655B CN 201910058525 A CN201910058525 A CN 201910058525A CN 109681655 B CN109681655 B CN 109681655B
- Authority
- CN
- China
- Prior art keywords
- main body
- connecting pipe
- rod
- fixed
- natural gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a gate valve with good sealing performance for a natural gas pipeline, which comprises a main body, a cylinder, a connecting pipe and two flange plates, the two sides of the main body are respectively provided with a connecting hole which is in one-to-one correspondence and matched with the flange plate, the flange plate is fixed on the main body, the cylinder is vertically arranged, the cylinder body is fixed on the top of the main body, the top of the main body is sleeved on the air rod, the connecting pipe is horizontally arranged in the main body and is arranged above the connecting hole, the cylinder is connected with the middle end of the connecting pipe in a transmission way, the main body is internally provided with a control mechanism and two sealing mechanisms which are respectively arranged at the two sides of the air rod, this a push-pull valve that sealing performance is good for natural gas line has improved the leakproofness through sealing mechanism, not only so, has still improved the life of sealing washer through control mechanism.
Description
Technical Field
The invention relates to the field of natural gas equipment, in particular to a gate valve with good sealing performance for a natural gas pipeline.
Background
The gate valve is a valve with a gate plate and a valve seat which are always in close contact and sealed, and the gate plate is provided with a round opening with the same drift diameter, the round opening on the gate plate is completely separated from and matched with the drift diameter by opening and closing the gate plate, and the gate valve is widely applied to the fields of natural gas pipelines and the like due to the advantages of small volume, small flow resistance, light weight, easiness in installation, easiness in disassembly and the like.
The sealing ring inside the existing gate valve is always abutted to parts of the gate valve in the using process, so that the sealing ring is abraded in the moving process, the service life of the sealing ring is prolonged, and the existing gate valve is mostly provided with only one valve, so that natural gas leakage can be caused if the installation direction of the valve is wrong, and the sealing performance and the practicability are reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the gate valve with good sealing performance for the natural gas pipeline is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a gate valve with good sealing performance for a natural gas pipeline comprises a main body, a cylinder, a connecting pipe and two flange plates, wherein connecting holes are formed in the two sides of the main body and are in one-to-one correspondence and matched with the flange plates;
the sealing mechanism comprises a push plate, a connecting block, a movable plate, a sealing ring and two reset units, wherein the push plate is vertically arranged in the connecting pipe, the connecting pipe is sleeved on the push plate, the connecting block is fixed on one side, far away from the gas rod, of the push plate, the movable plate is vertically fixed on one side, far away from the push plate, of the connecting block, one side, close to the connecting block, of the movable plate is abutted against the connecting pipe, the sealing ring is arranged at one end, far away from the connecting pipe, of the movable plate, the axis of the sealing ring is overlapped with the axis of the connecting pipe, a manhole is arranged on one side of the main body, the manhole is arranged opposite to the sealing ring, the aperture of the manhole is larger than the outer diameter of the sealing ring, the inner diameter of;
the control mechanism comprises a knob, a rotating shaft, a locking rod, a magnet and two hemispherical blocks, a through hole is formed in the bottom of the connecting pipe, the through hole is vertically arranged between the two push plates, the axis of the through hole is intersected with the axis of the connecting pipe, the rotating shaft and the through hole are coaxially arranged, the knob is arranged below the main body, the knob is installed at the bottom end of the rotating shaft, the two hemispherical blocks are respectively arranged on two sides of the top end of the rotating shaft, one side of the hemispherical block, far away from the spherical surface, is fixedly connected with the rotating shaft, the connecting line of the spherical centers of the two hemispherical blocks is perpendicular to the axis of the connecting pipe and the axis of the rotating shaft, four sliding grooves are formed in the knob, the locking rod is vertically arranged on one side of the rotating shaft, the sliding grooves are matched with the locking rod, the sliding grooves are uniformly arranged on the periphery of the knob by taking, the utility model discloses a locking mechanism, including the axis of rotation, the axis of rotation is kept away from to the bottom of main part, the axis of rotation is kept away from to the bottom of magnet, and the axis of rotation is kept away from to the locking lever.
Preferably, in order to facilitate the magnet to adsorb the locking rod, the locking rod is made of iron.
As preferred, for the ease of push pedal resets, the unit that resets includes fixed block, stopper, dead lever and spring, the fixed block is fixed on the inner wall of connecting pipe, the axis of dead lever is parallel with the axis of connecting pipe, the one end of dead lever is fixed in the one side that is close to the movable plate of push pedal, the other end at the dead lever is fixed to the stopper, the fixed block cover is established on the dead lever, the spring sets up between fixed block and push pedal, the fixed block passes through the spring and is connected with the push pedal, the spring housing is established on the dead lever, the stopper supports with the fixed.
Preferably, in order to reduce the friction between the fixing rod and the fixing block, lubricating oil is arranged on the fixing rod.
Preferably, in order to further improve the sealing performance, a scraping rod is arranged on one side, close to the sealing ring, of the moving plate, the scraping rod is arranged between the manhole and the connecting hole, the scraping rod is attached to the inner wall of the main body, and a connecting port is arranged on one side of the bottom in the main body and matched with the scraping rod.
Preferably, in order to facilitate the matching of the scraping rod and the connecting port, one side of the scraping rod, which is far away from the moving plate, is provided with a chamfer.
Preferably, in order to improve the stability of the rotating shaft, an arc-shaped opening is formed in one side, far away from the manhole, of the push plate.
Preferably, the rotating shaft is coated with a sealing grease in order to improve sealability between the rotating shaft and the main body.
Preferably, in order to facilitate the rotation of the knob, the knob is provided with anti-skid grains.
Preferably, in order to prevent dust from entering the main body through a manhole, a protection cover is provided on the manhole, and the protection cover is provided on the manhole.
The gate valve for the natural gas pipeline has the beneficial effects that the gate valve with good sealing performance improves the sealing performance through the sealing mechanism, compared with the existing sealing mechanism, the sealing mechanism is simple in structure and lower in cost, the service life of the sealing ring is prolonged through the control mechanism, and compared with the existing control mechanism, the control mechanism is ingenious in structure and higher in practicability.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a gate valve for natural gas pipelines of the present invention with good sealing properties;
FIG. 2 is a cross-sectional view of a good seal gate valve for a natural gas pipeline of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of a control mechanism of the spile valve with good sealing performance for a natural gas pipeline according to the invention;
FIG. 5 is an enlarged view of portion B of FIG. 3;
in the figure: 1. the novel high-speed motor comprises a main body, a cylinder, a connecting pipe, a flange plate, a push plate, a connecting block, a movable plate, a sealing ring, a knob, a rotating shaft, a locking rod, a magnet, a hemisphere block, a fixing block, a limiting block, a fixing rod, a spring, a scraping rod, a protecting cover and a spring, wherein the cylinder is 2, the connecting pipe is 3, the flange plate is 4, the push plate is 5, the connecting block is 6, the movable plate is 7, the sealing ring is 8, the knob is 9.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, a gate valve with good sealing performance for a natural gas pipeline comprises a main body 1, a cylinder 2, a connecting pipe 3 and two flange plates 4, wherein connecting holes are formed in two sides of the main body 1, the connecting holes correspond to and are matched with the flange plates 4 one by one, the flange plates 4 are fixed on the main body 1, the cylinder 2 is vertically arranged, the cylinder 2 is fixed on the top of the main body 1, the top of the main body 1 is sleeved on a gas rod, the connecting pipe 3 is horizontally arranged in the main body 1, the connecting pipe 3 is arranged above the connecting holes, the cylinder 2 is in transmission connection with the middle end of the connecting pipe 3, two sealing mechanisms which are connected with a control mechanism are arranged in the main body 1, and the two sealing mechanisms are respectively arranged on two sides of;
the pipeline that is used for the natural gas through ring flange 4 communicates, has realized the leakproofness of this push-pull valve through sealing mechanism, has improved the life of this push-pull valve through control mechanism.
As shown in fig. 3-4, the sealing mechanism comprises a push plate 5, a connecting block 6, a movable plate 7, a sealing ring 8 and two reset units, wherein the push plate 5 is vertically arranged in the connecting pipe 3, the connecting pipe 3 is sleeved on the push plate 5, the connecting block 6 is fixed on one side of the push plate 5 away from the gas rod, the movable plate 7 is vertically fixed on one side of the connecting block 6 away from the push plate 5, one side of the movable plate 7 close to the connecting block 6 is abutted against the connecting pipe 3, the sealing ring 8 is arranged at one end of the movable plate 7 away from the connecting pipe 3, the axis of the sealing ring 8 is coincided with the axis of the connecting pipe 3, one side of the main body 1 is provided with a manhole, the manhole is just opposite to the sealing ring 8, the aperture of the manhole is larger than the outer diameter of the sealing ring 8, the inner diameter of the sealing, the reset unit is arranged on the push plate 5;
the control mechanism comprises a knob 9, a rotating shaft 10, a locking rod 11, a magnet 12 and two hemispherical blocks 13, a through hole is arranged at the bottom of the connecting pipe 3, the through hole is vertically arranged between the two push plates 5, the axis of the through hole is intersected with the axis of the connecting pipe 3, the rotating shaft 10 is coaxially arranged with the through hole, the knob 9 is arranged below the main body 1, the knob 9 is arranged at the bottom end of the rotating shaft 10, the two hemispherical blocks 13 are respectively arranged at two sides of the top end of the rotating shaft 10, one side of the hemispherical block 13, far away from the spherical surface, is fixedly connected with the rotating shaft 10, the connecting line of the spherical centers of the two hemispherical blocks 13 is vertical to the axis of the connecting pipe 3 and the axis of the rotating shaft 10, the knob 9 is provided with four sliding grooves, the locking rod 11 is vertically arranged at one side of the rotating shaft 10, the sliding grooves are matched with the locking rod 11, and are uniformly arranged at the, the top of check lock lever 11 is articulated with the bottom of main part 1, check lock lever 11 sets up in the spout, the bottom of main part 1 is equipped with the notch, magnet 12 sets up in the notch, the bottom of magnet 12 is in the coplanar with the bottom of main part 1, magnet 12 sets up the one side of keeping away from axis of rotation 10 at check lock lever 11.
When the gate valve needs to be in a closed state, the air cylinder 2 operates to enable the air rod to push the connecting pipe 3 to move downwards, the moving of the connecting pipe 3 enables the moving plate 7 to drive the sealing ring 8 to move downwards, the sealing ring 8 is arranged opposite to the connecting hole, the top end of the rotating shaft 10 is located in the connecting pipe 3 at the moment, then a user rotates the locking rod 11 to enable the locking rod 11 to be abutted against the bottom of the main body 1, the locking rod 11 is fixed at the bottom of the main body 1 through the magnet 12, then the user rotates the knob 9 to enable the rotating shaft 10 to drive the hemispherical block 13 to rotate by an angle of 90 degrees, then the user manually resets the locking rod 11 to enable the locking rod 11 to be matched with another sliding groove, the function of the locking knob 9 is achieved, the hemispherical block 13 is enabled to push the push plate 5 to move towards the direction close to the connecting hole through the rotation of the, thereby make movable plate 7 plug up the connecting hole, through two sealing mechanism, can avoid this push-pull valve to adorn with the direction of admitting air anti-, improved leakproofness and practicality, promote sealing washer 8 through push pedal 5 and support with main part 1 and lean on, can avoid sealing washer 8 and main part 1 to produce the friction and reduce the life of sealing washer 8 to reduce the life of this push-pull valve.
Preferably, in order to facilitate the magnet 12 to adsorb the locking rod 11, the locking rod 11 is made of iron, and the iron may be adsorbed by the magnet 12, so that the locking rod 11 is fixed at the bottom of the main body 1.
As shown in fig. 5, the resetting unit includes a fixed block 14, a limiting block 15, a fixed rod 16 and a spring 17, the fixed block 14 is fixed on the inner wall of the connecting pipe 3, the axis of the fixed rod 16 is parallel to the axis of the connecting pipe 3, one end of the fixed rod 16 is fixed on one side of the push plate 5 close to the movable plate 7, the limiting block 15 is fixed at the other end of the fixed rod 16, the fixed block 14 is sleeved on the fixed rod 16, the spring 17 is arranged between the fixed block 14 and the push plate 5, the fixed block 14 is connected with the push plate 5 through the spring 17, the spring 17 is sleeved on the fixed rod 16, the limiting block 15 is abutted against the fixed block 14, the fixed rod 16 is driven to move towards the direction close to the movable plate 7 through the movement of the push plate 5, so that the spring 17 is compressed, and, the function of resetting the push plate 5 is realized.
Preferably, in order to reduce the friction between the fixing rod 16 and the fixing block 14, the fixing rod 16 is provided with lubricating oil, so that the friction between the fixing rod 16 and the fixing block 14 can be reduced through lubrication, and the smoothness of movement of the fixing rod 16 is improved.
Preferably, in order to further improve the sealing performance, a scraping rod 18 is arranged on one side, close to the sealing ring 8, of the moving plate 7, the scraping rod 18 is arranged between the manhole and the connecting hole, the scraping rod 18 is attached to the inner wall of the main body 1, a connecting port is arranged on one side of the bottom in the main body 1, the connecting port is matched with the scraping rod 18, the scraping rod 18 moves downwards on the inner wall of the main body 1 through the moving of the moving plate 7, so that the scraping rod 18 cleans dust on the inner wall of the main body 1, the dust is prevented from influencing the sealing performance between the main body 1 and the moving plate 7, the sealing performance of the gate valve is further improved, and after the scraping rod 18 moves to the bottom in the main body 1, the scraping rod 18 moves into the connecting port through the moving plate 7 to the direction close to the flange plate 4, and the scraping rod 18 is prevented from influencing the abutting of.
Preferably, in order to facilitate the matching of the scraping rod 18 and the connecting port, a chamfer is arranged on one side of the scraping rod 18 away from the moving plate 7, so that the scraping rod 18 can be conveniently matched with the connecting port through the chamfer, and the moving fluency of the scraping rod 18 is improved.
Preferably, in order to improve the stability of the rotating shaft 10, one side of the push plate 5, which is far away from the manhole, is provided with an arc-shaped opening, so that the hemispherical block 13 is prevented from slipping on the push plate 5 through the arc-shaped opening, and the stability of the rotating shaft 10 is improved.
Preferably, in order to improve the sealing performance between the rotating shaft 10 and the main body 1, the rotating shaft 10 is coated with a sealing grease, so that the gap between the rotating shaft 10 and the main body 1 can be reduced by the sealing grease, and the sealing performance between the rotating shaft 10 and the main body 1 is improved.
Preferably, in order to facilitate the rotation of the knob 9, the knob 9 is provided with anti-slip patterns, and the friction force of the knob 9 can be improved through the anti-slip patterns, so that the knob 9 can be rotated by a user conveniently.
Preferably, in order to prevent the dust from entering the main body 1 through the manhole, a protection cover 19 is provided on the manhole, the protection cover 19 is covered on the manhole, and the main body 1 can be in a sealed state through the protection cover 19, so that the dust is prevented from entering the main body 1 through the manhole.
This a push-pull valve that sealing performance is good for natural pipeline through two sealing mechanism, can avoid this push-pull valve to adorn with the direction of admitting air anti-, has improved leakproofness and practicality, promotes sealing washer 8 through push pedal 5 and supports with main part 1 and lean on, can avoid sealing washer 8 and main part 1 to produce the friction and reduce sealing washer 8's life to reduce this push-pull valve's life.
Compared with the prior art, this a push-pull valve that sealing performance is good for natural gas line has improved the leakproofness through sealing mechanism, compares with current sealing mechanism, and this sealing mechanism simple structure, the cost is lower, and so only, still improved the life of sealing washer 8 through control mechanism, compares with current control mechanism, and this control mechanism structure is ingenious, and the practicality is higher.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A gate valve with good sealing performance for a natural gas pipeline comprises a main body (1), a cylinder (2), a connecting pipe (3) and two flange plates (4), the two sides of the main body (1) are respectively provided with a connecting hole, the connecting holes are in one-to-one correspondence and match with the flange plates (4), the flange plate (4) is fixed on the main body (1), the cylinder (2) is vertically arranged, the cylinder (2) is fixed on the top of the main body (1), the top of the main body (1) is sleeved on the gas rod, the connecting pipe (3) is horizontally arranged in the main body (1), the connecting pipe (3) is arranged above the connecting hole, the cylinder (2) is in transmission connection with the middle end of the connecting pipe (3), the air rod sealing device is characterized in that a control mechanism and two sealing mechanisms are arranged in the main body (1), and the two sealing mechanisms are respectively arranged on two sides of the air rod;
the sealing mechanism comprises a push plate (5), a connecting block (6), a movable plate (7), a sealing ring (8) and two reset units, wherein the push plate (5) is vertically arranged in the connecting pipe (3), the connecting pipe (3) is sleeved on the push plate (5), the connecting block (6) is fixed on one side of the push plate (5) far away from the gas lever, the movable plate (7) is vertically fixed on one side of the connecting block (6) far away from the push plate (5), one side of the movable plate (7) close to the connecting block (6) is abutted against the connecting pipe (3), the sealing ring (8) is arranged at one end of the movable plate (7) far away from the connecting pipe (3), the axis of the sealing ring (8) is coincided with the axis of the connecting pipe (3), one side of the main body (1) is provided with a manhole, the manhole is opposite to the sealing ring (8), and the aperture of the manhole is larger, the inner diameter of the sealing ring (8) is larger than the aperture of the connecting hole, the two reset units are respectively arranged above and below the connecting block (6), and the reset units are arranged on the push plate (5);
the control mechanism comprises a knob (9), a rotating shaft (10), a locking rod (11), a magnet (12) and two hemispherical blocks (13), a through hole is formed in the bottom of the connecting pipe (3), the through hole is vertically arranged between the two push plates (5), the axis of the through hole is intersected with the axis of the connecting pipe (3), the rotating shaft (10) and the through hole are coaxially arranged, the knob (9) is arranged below the main body (1), the knob (9) is arranged at the bottom end of the rotating shaft (10), the two hemispherical blocks (13) are respectively arranged on two sides of the top end of the rotating shaft (10), one side, far away from the spherical surface, of each hemispherical block (13) is fixedly connected with the rotating shaft (10), the connecting line of the spherical centers of the two hemispherical blocks (13) is perpendicular to the axis of the connecting pipe (3) and the axis of the rotating shaft (10), and four sliding grooves are formed in the knob (9), the vertical setting in one side of axis of rotation (10) of check lock lever (11), the spout matches with check lock lever (11), the spout uses the axis of rotation (10) to evenly set up the periphery in knob (9) as center circumference, the top of check lock lever (11) is articulated with the bottom of main part (1), check lock lever (11) set up in the spout, the bottom of main part (1) is equipped with the notch, magnet (12) set up in the notch, the bottom of magnet (12) and the bottom of main part (1) are in the coplanar, magnet (12) set up the one side of keeping away from axis of rotation (10) in check lock lever (11).
2. The gate valve with good sealing performance for natural gas pipelines according to claim 1, characterized in that the material of the locking rod (11) is iron.
3. The gate valve with good sealing performance for natural gas pipeline according to claim 1, the reset unit comprises a fixed block (14), a limit block (15), a fixed rod (16) and a spring (17), the fixed block (14) is fixed on the inner wall of the connecting pipe (3), the axis of the fixed rod (16) is parallel to the axis of the connecting pipe (3), one end of the fixed rod (16) is fixed at one side of the push plate (5) close to the moving plate (7), the limiting block (15) is fixed at the other end of the fixing rod (16), the fixing block (14) is sleeved on the fixing rod (16), the spring (17) is arranged between the fixed block (14) and the push plate (5), the fixed block (14) is connected with the push plate (5) through a spring (17), the spring (17) is sleeved on the fixing rod (16), and the limiting block (15) is abutted to the fixing block (14).
4. A good-sealing gate valve for natural gas pipelines according to claim 3, characterized in that said fixing rods (16) are provided with lubricating oil.
5. The gate valve with good sealing performance for the natural gas pipeline according to claim 1, wherein a scraping rod (18) is arranged on one side of the moving plate (7) close to the sealing ring (8), the scraping rod (18) is arranged between a manhole and a connecting hole, the scraping rod (18) is attached to the inner wall of the main body (1), and a connecting port is arranged on one side of the inner bottom of the main body (1) and matched with the scraping rod (18).
6. The gate valve with good sealing performance for natural gas pipelines according to claim 5, characterized in that one side of the scraping rod (18) far away from the moving plate (7) is provided with a chamfer.
7. The gate valve with good sealing performance for the natural gas pipeline as claimed in claim 1, wherein one side of the push plate (5) far away from the manhole is provided with an arc-shaped opening.
8. The gate valve for natural gas pipeline with good sealing performance according to claim 1, wherein the rotating shaft (10) is coated with sealing grease.
9. The gate valve with good sealing performance for the natural gas pipeline as claimed in claim 1, wherein the knob (9) is provided with anti-slip lines.
10. The gate valve with good sealing performance for the natural gas pipeline as claimed in claim 1, wherein a protection cover (19) is arranged on the manhole, and the protection cover (19) is covered on the manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910058525.3A CN109681655B (en) | 2019-01-22 | 2019-01-22 | A push-pull valve that sealing performance is good for natural gas line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910058525.3A CN109681655B (en) | 2019-01-22 | 2019-01-22 | A push-pull valve that sealing performance is good for natural gas line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681655A CN109681655A (en) | 2019-04-26 |
| CN109681655B true CN109681655B (en) | 2020-06-09 |
Family
ID=66193695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910058525.3A Active CN109681655B (en) | 2019-01-22 | 2019-01-22 | A push-pull valve that sealing performance is good for natural gas line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681655B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE742286C (en) * | 1940-02-23 | 1943-11-26 | Wilh Strube G M B H | Gate valve with hydraulic pressure on the shut-off plates and a pipe fitting following the movements of the shut-off plates |
| CN104500772A (en) * | 2014-11-26 | 2015-04-08 | 江苏省鑫通阀门制造有限公司 | Water-sealed gas shut-off valve with double dampers parallel |
| CN104595512B (en) * | 2015-01-28 | 2016-09-07 | 石家庄阀门一厂股份有限公司 | A kind of water-cooled double valve plates high temperature cut-off valve |
| CN105065700B (en) * | 2015-07-13 | 2017-07-18 | 哈托利海托阀门（杭州）有限公司 | A kind of self-sealed gate valve structure |
| CN106439071A (en) * | 2016-08-25 | 2017-02-22 | 德阳市迪信佳阀门制造有限公司 | Magnetic gate valve |
| CN108980388A (en) * | 2018-10-13 | 2018-12-11 | 贾巧凤 | The driving structure of flashboard in gate valve |
-
2019
- 2019-01-22 CN CN201910058525.3A patent/CN109681655B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109681655A (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109681655B (en) | A push-pull valve that sealing performance is good for natural gas line | |
| CN105736806A (en) | Butterfly valve | |
| CN114294438B (en) | Petroleum mechanical valve with emergency blocking function | |
| CN205618790U (en) | Butterfly valve | |
| CN212455529U (en) | Novel butt-clamping butterfly valve | |
| CN204985827U (en) | Fire -fighting spherical valve | |
| CN211371315U (en) | Butt clamp type soft sealing butterfly valve | |
| CN204962008U (en) | Two packing seal valves | |
| CN209977318U (en) | Ball valve with high stability | |
| CN204372210U (en) | A kind of valve rod with universal joint | |
| CN111365471A (en) | Gate valve | |
| CN106246935B (en) | A kind of intermittent hard-sealing zero friction butterfly valve | |
| CN220268466U (en) | Combined natural gas valve | |
| CN105508774A (en) | Test interface structure | |
| CN219431908U (en) | Pump cover of oil pump | |
| KR101789985B1 (en) | Plugging device | |
| CN219809436U (en) | High-sealing and easy-to-disassemble gas ball valve | |
| CN214037095U (en) | Manual ball valve with signal switch | |
| CN215293602U (en) | Magnetic control pipeline gas self-closing valve | |
| CN219013378U (en) | Novel butt-clamping butterfly valve with good sealing performance | |
| CN220249106U (en) | Pneumatic stop valve convenient to close | |
| CN210661477U (en) | Adjustable manual sealing ball valve | |
| CN208204071U (en) | A kind of constructional device of V-arrangement ball valve | |
| CN219655312U (en) | Pressure regulating valve | |
| CN220435478U (en) | Stable natural gas pipeline valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200513 Address after: 344100, Linchuan District, Jiangxi City, Fuzhou Province North Industrial Park Applicant after: FUZHOU FUBEI NATURAL GAS Co.,Ltd. Address before: 510000 F05-0009 room 5, 22 West Post Wai, Liwan District, Guangzhou, Guangdong (cluster registration) Applicant before: GUANGZHOU SHAWEISHI ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |