CN109681655A - A kind of gate valve of the good seal performance for natural gas line - Google Patents
A kind of gate valve of the good seal performance for natural gas line Download PDFInfo
- Publication number
- CN109681655A CN109681655A CN201910058525.3A CN201910058525A CN109681655A CN 109681655 A CN109681655 A CN 109681655A CN 201910058525 A CN201910058525 A CN 201910058525A CN 109681655 A CN109681655 A CN 109681655A
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- China
- Prior art keywords
- main body
- connecting tube
- fixed
- gate valve
- natural gas
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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
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- 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
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to a kind of gate valves of good seal performance for natural gas line, including main body, cylinder, connecting tube and two ring flanges, the two sides of the main body are equipped with connecting hole, the connecting hole is corresponded and is matched with ring flange, the ring flange is fixed in main body, the cylinder is vertically arranged, the cylinder body is fixed on the top of main body, it is set at the top of the main body on gas bar, the connecting tube is horizontally set in main body, the top of connecting hole is arranged in the connecting tube, the transmission connection of the middle-end of the cylinder and connecting tube, control mechanism and two sealing mechanisms are equipped in the main body, two sealing mechanisms are separately positioned on the two sides of gas bar, the gate valve for being used for the good seal performance of natural gas line improves leakproofness by sealing mechanism, moreover, the use longevity of sealing ring is also improved by control mechanism Life.
Description
Technical field
The present invention relates to natural gas facility field, in particular to the plate of a kind of good seal performance for natural gas line
Valve.
Background technique
Gate valve is also known as manual knife gate valve, knife-shape gate valve it be a kind of valve that flashboard and valve seat are in close contact sealing always
Door, principle is the round mouth that a latus rectum size is provided on flashboard, is opened and closed by flashboard so that round mouth is finished with latus rectum on flashboard
Total detachment and the movement to match, because the advantages that its is small in size, flow resistance is small, light-weight, easy to install, quick detachable is widely used in day
The fields such as right gas feed channel.
In use, sealing ring inside gate valve is always with the part of gate valve against leading for existing gate valve
Fine and close seal is worn in the process of moving, reduces the service life of sealing ring, and moreover, existing gate valve is big
All only one valves will lead to natural gas leaking, reduce leakproofness and practicability such as the installation direction mistake of valve.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of for natural gas tube
The gate valve of the good seal performance in road.
The technical solution adopted by the present invention to solve the technical problems is: a kind of good seal performance for natural gas line
Gate valve, including main body, cylinder, connecting tube and two ring flanges, the two sides of the main body are equipped with connecting hole, the connection
Hole corresponds and matches with ring flange, and the ring flange is fixed in main body, and the cylinder is vertically arranged, and the cylinder body is fixed
It is set at the top of the top of main body, the main body on gas bar, the connecting tube is horizontally set in main body, the connecting tube
The top of connecting hole is set, and the middle-end transmission connection of the cylinder and connecting tube, the main body is interior to be equipped with control mechanism and two
A sealing mechanism, two sealing mechanisms are separately positioned on the two sides of gas bar；
The sealing mechanism includes that push plate, link block, movable plate, sealing ring and two reset units, the push plate are vertical
It is arranged in connecting tube, the connecting pipe box are located in push plate, and the link block is fixed on the side of the separate gas bar of push plate, institute
State the side that movable plate is vertically fixed on the separate push plate of link block, the side of the close link block of the movable plate and connecting tube
Against one end of the separate connecting tube of movable plate, the axis of the sealing ring and the axis of connecting tube is arranged in the sealing ring
It is overlapped, the side of the main body is equipped with manhole, and the manhole and sealing ring face are arranged, and the aperture of the manhole is greater than sealing ring
Outer diameter, the internal diameter of the sealing ring is greater than the aperture of connecting hole, two reset units be separately positioned on link block top and
Lower section, the reset unit are arranged in push plate；
The control mechanism includes knob, rotation axis, check lock lever, magnet and two hemisphere blocks, the bottom of the connecting tube
Equipped with through-hole, the through-hole is vertically provided between two push plates, and the axis of the through-hole intersects with the axis of connecting tube, described
Rotation axis and through-hole are coaxially disposed, and the knob is arranged in the lower section of main body, and the knob is mounted on the bottom end of rotation axis, and two
Hemisphere block is separately positioned on the two sides on rotation axis top, and the side of the separate spherical surface of the hemisphere block is fixedly connected with the rotating shaft,
The line of the centre of sphere of two hemisphere blocks is vertical with the axis of the axis of connecting tube and rotation axis, sets that there are four sliding on the knob
Slot, the check lock lever are vertically provided at the side of rotation axis, and the sliding slot is matched with check lock lever, and the sliding slot is with the axis of rotation axis
The periphery of knob is circumferentially uniformly arranged on centered on line, the top of the check lock lever and the bottom of main body are hinged, the check lock lever
It is arranged in sliding slot, the bottom end of the main body is equipped with recess, and the magnet is arranged in recess, the bottom of the magnet and main body
Bottom be in same plane, the side of the separate rotation axis of check lock lever is arranged in the magnet.
Preferably, adsorbing check lock lever for the ease of magnet, the making material of the check lock lever is iron.
Preferably, the reset unit includes fixed block, limited block, fixed link and spring for the ease of push plate reset,
The fixed block is fixed on the inner wall of connecting tube, and the axis of the fixed link and the axis of connecting tube are parallel, the fixed link
One end be fixed on push plate close movable plate side, the limited block is fixed on the other end of fixed link, the fixed block
It is set in fixed link, the spring is arranged between fixed block and push plate, and the fixed block is connect by spring with push plate, institute
Spring is stated to be set in fixed link, the limited block and fixed block against.
Preferably, in order to reduce the frictional force between fixed link and fixed block, the fixed link is equipped with lubricating oil.
Preferably, in order to further increase leakproofness, the side of the close sealing ring of the movable plate is equipped with floating rule, institute
It states floating rule to be arranged between manhole and connecting hole, the floating rule is bonded with the inner wall of main body, and the side of bottom is set in the main body
There is connector, the connector is matched with floating rule.
Preferably, cooperating for the ease of floating rule and connector, the side of the separate movable plate of the floating rule is equipped with chamfering.
Preferably, in order to improve the stability of rotation axis, the side of the separate manhole of the push plate is equipped with arc port.
Preferably, being coated with stop-leak compound in the rotation axis to improve the leakproofness between rotation axis and main body.
Preferably, the knob is equipped with anti-skid chequer for the ease of turning knob.
Preferably, the manhole is equipped with protection cap, the protection in order to avoid dust is entered in main body by manhole
Lid lid is located on manhole.
The invention has the advantages that the gate valve of the good seal performance for being used for natural gas line is mentioned by sealing mechanism
High leakproofness, compared with existing sealing mechanism, the sealing mechanism structure is simple, and cost is lower, moreover, also passes through control
Mechanism processed improves the service life of sealing ring, and compared with existing control mechanism, the control mechanism clever structure, practicability is more
It is high.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the gate valve of the good seal performance for natural gas line of the invention；
Fig. 2 is the cross-sectional view of the gate valve of the good seal performance for natural gas line of the invention；
Fig. 3 is the portion the A enlarged drawing of Fig. 2；
Fig. 4 is the structural representation of the control mechanism of the gate valve of the good seal performance for natural gas line of the invention
Figure；
Fig. 5 is the portion the B enlarged drawing of Fig. 3；
In figure: 1. main bodys, 2. cylinders, 3. connecting tubes, 4. ring flanges, 5. push plates, 6. link blocks, 7. movable plates, 8. sealings
Circle, 9. knobs, 10. rotation axis, 11. check lock levers, 12. magnet, 13. hemisphere blocks, 14. fixed blocks, 15. limited blocks, 16. is fixed
Bar, 17. springs, 18. floating rules, 19. protection caps.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figs. 1-2, a kind of gate valve of the good seal performance for natural gas line, including main body 1, cylinder 2, company
Adapter tube 3 and two ring flanges 4, the two sides of the main body 1 are equipped with connecting hole, and the connecting hole and ring flange 4 correspond simultaneously
Matching, the ring flange 4 is fixed on the body 1, and the cylinder 2 is vertically arranged, and the cylinder body is fixed on the top of main body 1, institute
The top for stating main body 1 is set on gas bar, and the connecting tube 3 is horizontally set in main body 1, and the setting of connecting tube 3 is connecting
The top in hole, the cylinder 2 and the middle-end of connecting tube 3 are sequentially connected, and are equipped with and two sealers of control mechanism in the main body 1
Structure, two sealing mechanisms are separately positioned on the two sides of gas bar；
Pipeline by ring flange 4 for natural gas is connected to, and the leakproofness of the gate valve is realized by sealing mechanism, is led to
Cross the service life that control mechanism improves the gate valve.
As shown in Figure 3-4, the sealing mechanism includes that push plate 5, link block 6, movable plate 7, sealing ring 8 and two resets are single
Member, the push plate 5 are vertically provided in connecting tube 3, and the connecting tube 3 is set in push plate 5, and the link block 6, which is fixed on, to be pushed away
The side of the separate gas bar of plate 5, the movable plate 7 are vertically fixed on the side of the separate push plate 5 of link block 6, the movable plate 7
Close link block 6 side and connecting tube 3 against, one end of the separate connecting tube 3 of movable plate 7 is arranged in the sealing ring 8,
The axis of the sealing ring 8 is overlapped with the axis of connecting tube 3, and the side of the main body 1 is equipped with manhole, the manhole and sealing ring
The setting of 8 faces, the aperture of the manhole are greater than the outer diameter of sealing ring 8, and the internal diameter of the sealing ring 8 is greater than the aperture of connecting hole,
Two reset units are separately positioned on above and below link block 6, and the reset unit is arranged in push plate 5；
The control mechanism includes knob 9, rotation axis 10, check lock lever 11, magnet 12 and two hemisphere blocks 13, the connection
The bottom of pipe 3 is equipped with through-hole, and the through-hole is vertically provided between two push plates 5, the axis of the through-hole and the axis of connecting tube 3
Line intersection, the rotation axis 10 are coaxially disposed with through-hole, and the lower section of main body 1 is arranged in the knob 9, and the knob 9 is mounted on
The bottom end of rotation axis 10, two hemisphere blocks 13 are separately positioned on the two sides on 10 top of rotation axis, the separate ball of the hemisphere block 13
The side in face is fixedly connected with rotation axis 10, the line of the centre of sphere of two hemisphere blocks 13 with the axis and rotation axis of connecting tube 3
10 axis is vertical, is set on the knob 9 there are four sliding slot, the check lock lever 11 is vertically provided at the side of rotation axis 10, institute
Sliding slot to be stated to match with check lock lever 11, the sliding slot is circumferentially uniformly arranged on the periphery of knob 9 centered on the axis of rotation axis 10,
The top of the check lock lever 11 and the bottom of main body 1 are hinged, and the check lock lever 11 is arranged in sliding slot, the bottom end of the main body 1
Equipped with recess, the magnet 12 is arranged in recess, and the bottom of the magnet 12 and the bottom of main body 1 are in same plane, institute
State the side that the separate rotation axis 10 of check lock lever 11 is arranged in magnet 12.
It when the gate valve needs to be in close state, is run by cylinder 2, makes gas bar that connecting tube 3 be pushed to move down,
The movement of connecting tube 3 moves down movable plate 7 with dynamic seal ring 8, and sealing ring 8 and connecting hole face is arranged, rotates at this time
The top of axis 10 is in connecting tube 3, subsequent user's rotation lock bar 11, makes the bottom of check lock lever 11 and main body 1 against logical
The bottom that magnet 12 makes check lock lever 11 be fixed on main body 1 is crossed, later user's turning knob 9, so that rotation axis 10 be made to drive half
Ball block 13 rotates an angle of 90 degrees, and then, user manually resets check lock lever 11, cooperates check lock lever 11 and another sliding slot, reaches
The function of having arrived locking knob 9 makes hemisphere block 13 that push plate 5 be pushed to move to close to connecting hole direction by the rotation of hemisphere block 13
It is dynamic, to make inner wall of the movable plate 7 with dynamic seal ring 8 and main body 1 against passing through two so that movable plate 7 be made to block connecting hole
Sealing mechanism, can be anti-loaded to avoid the direction of the gate valve and air inlet, improves leakproofness and practicability, is pushed by push plate 5
Sealing ring 8 and main body 1 against, can to avoid sealing ring 8 and main body 1 generate friction and reduce the service life of sealing ring 8, thus
Reduce the service life of the gate valve.
Preferably, adsorb check lock lever 11 for the ease of magnet 12, the making material of the check lock lever 11 is iron, and iron can be with
It is adsorbed by magnet 12, the bottom of main body 1 is fixed on convenient for check lock lever 11.
As shown in figure 5, the reset unit includes fixed block 14, limited block 15, fixed link 16 and spring 17, the fixation
Block 14 is fixed on the inner wall of connecting tube 3, and the axis of the fixed link 16 is parallel with the axis of connecting tube 3, the fixed link 16
One end be fixed on push plate 5 close movable plate 7 side, the limited block 15 is fixed on the other end of fixed link 16, described
Fixed block 14 is set in fixed link 16, and the spring 17 is arranged between fixed block 14 and push plate 5, and the fixed block 14 passes through
Spring 17 is connect with push plate 5, and the spring 17 is set in fixed link 16, and the limited block 15 and fixed block 14 are against passing through
The mobile drive fixed link 16 of push plate 5 compresses spring 17, when hemisphere block 13 and push plate 5 divide to close to the movement of 7 direction of movable plate
From rear, push plate 5 resets under the elastic reaction of spring 17, realizes the function of the reset of push plate 5.
Preferably, in order to reduce the frictional force between fixed link 16 and fixed block 14, the fixed link 16 is equipped with profit
Lubricating oil improves the mobile fluency of fixed link 16 by lubricating the frictional force that can reduce between fixed link 16 and fixed block 14.
Preferably, in order to further increase leakproofness, the side of the close sealing ring 8 of the movable plate 7 is equipped with floating rule
18, the floating rule 18 is arranged between manhole and connecting hole, and the floating rule 18 is bonded with the inner wall of main body 1, bottom in the main body 1
The side in portion is equipped with connector, and the connector is matched with floating rule 18, makes floating rule 18 in main body 1 by the movement of movable plate 7
It is moved down on inner wall, to make the dust on 18 cleaning body of floating rule, 1 inner wall, main body 1 and movement can be influenced to avoid dust
Leakproofness between plate 7, the further leakproofness of the gate valve pass through shifting after floating rule 18 is moved to the bottom in main body 1
Movable plate 7 is moved to floating rule 18 in connector to the movement close to 4 direction of ring flange, and floating rule 18 is avoided to influence sealing ring 8 and master
The inner wall of body 1 against.
Preferably, cooperating for the ease of floating rule 18 and connector, the side of the separate movable plate 7 of the floating rule 18 is equipped with
Chamfering can be cooperated in order to floating rule 18 and connector by chamfering, improve the mobile fluency of floating rule 18.
Preferably, in order to improve the stability of rotation axis 10, the side of the separate manhole of the push plate 5 is equipped with arc
Mouthful, it avoids hemisphere block 13 from skidding in push plate 5 by arc port, improves the stability of rotation axis 10.
Preferably, being coated with sealing in the rotation axis 10 to improve the leakproofness between rotation axis 10 and main body 1
Rouge can reduce the gap between rotation axis 10 and main body 1 by stop-leak compound, improve close between rotation axis 10 and main body 1
Feng Xing.
Preferably, the knob 9 is equipped with anti-skid chequer for the ease of turning knob 9, rotation can be improved by anti-skid chequer
The frictional force of button 9 is convenient for user's turning knob 9.
Preferably, the manhole is equipped with protection cap 19, described in order to avoid dust is entered in main body 1 by manhole
The lid of protection cap 19 is located on manhole, main body 1 can be made to be in sealing state by protection cap 19, and dust is avoided to enter by manhole
In main body 1.
The gate valve for being used for the good seal performance of natural duct can be to avoid the gate valve by two sealing mechanisms
It is anti-loaded with the direction of air inlet, leakproofness and practicability are improved, pushes sealing ring 8 and main body 1 against can keep away by push plate 5
Exempt from sealing ring 8 and main body 1 generates the service life for rubbing and reducing sealing ring 8, to reduce the service life of the gate valve.
Compared with prior art, the gate valve of the good seal performance for being used for natural gas line is improved by sealing mechanism
Leakproofness, compared with existing sealing mechanism, the sealing mechanism structure is simple, and cost is lower, moreover, also passes through control machine
Structure improves the service life of sealing ring 8, and compared with existing control mechanism, the control mechanism clever structure, practicability is higher.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of gate valve of the good seal performance for natural gas line, including main body (1), cylinder (2), connecting tube (3) and
Two ring flanges (4), the two sides of the main body (1) are equipped with connecting hole, the connecting hole and ring flange (4) correspond and
Match, the ring flange (4) is fixed on main body (1), and the cylinder (2) is vertically arranged, and the cylinder body is fixed on the top of main body (1)
Portion is set on gas bar at the top of the main body (1), and the connecting tube (3) is horizontally set in main body (1), the connecting tube
(3) top of connecting hole, the middle-end transmission connection of the cylinder (2) and connecting tube (3), which is characterized in that the master are set
Control mechanism is equipped in body (1) and two sealing mechanisms, two sealing mechanisms are separately positioned on the two sides of gas bar；
The sealing mechanism includes push plate (5), link block (6), movable plate (7), sealing ring (8) and two reset units, described
Push plate (5) is vertically provided in connecting tube (3), and the connecting tube (3) is set on push plate (5), and the link block (6) is fixed on
The side of the separate gas bar of push plate (5), the movable plate (7) are vertically fixed on the side of the separate push plate (5) of link block (6),
The side and connecting tube (3) of the close link block (6) of the movable plate (7) are against the sealing ring (8) is arranged in movable plate
(7) axis of one end of separate connecting tube (3), the sealing ring (8) is overlapped with the axis of connecting tube (3), the main body (1)
Side be equipped with manhole, the manhole and sealing ring (8) face are arranged, and the aperture of the manhole is greater than the outer diameter of sealing ring (8),
The internal diameter of the sealing ring (8) is greater than the aperture of connecting hole, and two reset units are separately positioned on the top of link block (6) under
Side, the reset unit are arranged on push plate (5)；
The control mechanism includes knob (9), rotation axis (10), check lock lever (11), magnet (12) and two hemisphere blocks (13), institute
The bottom for stating connecting tube (3) is equipped with through-hole, and the through-hole is vertically provided between two push plates (5), the axis of the through-hole with
The axis of connecting tube (3) intersects, and the rotation axis (10) and through-hole are coaxially disposed, and the knob (9) is arranged under main body (1)
Side, the knob (9) are mounted on the bottom end of rotation axis (10), and two hemisphere blocks (13) are separately positioned on rotation axis (10) top
The side of two sides, the separate spherical surface of the hemisphere block (13) is fixedly connected with rotation axis (10), the centre of sphere of two hemisphere blocks (13)
Line it is vertical with the axis of the axis of connecting tube (3) and rotation axis (10), set on the knob (9) there are four sliding slot, institute
The side that check lock lever (11) is vertically provided at rotation axis (10) is stated, the sliding slot is matched with check lock lever (11), and the sliding slot is to turn
The periphery of knob (9), the top and main body (1) of the check lock lever (11) are circumferentially uniformly arranged on centered on the axis of moving axis (10)
Bottom it is hinged, the check lock lever (11) is arranged in sliding slot, and the bottom end of the main body (1) is equipped with recess, the magnet (12)
It is arranged in recess, the bottom of the magnet (12) and the bottom of main body (1) are in same plane, and magnet (12) setting exists
The side of the separate rotation axis (10) of check lock lever (11).
2. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the locking
The making material of bar (11) is iron.
3. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the reset
Unit includes fixed block (14), limited block (15), fixed link (16) and spring (17), and the fixed block (14) is fixed on connecting tube
(3) on inner wall, the axis of the fixed link (16) is parallel with the axis of connecting tube (3), and one end of the fixed link (16) is solid
It is scheduled on the side of the close movable plate (7) of push plate (5), the limited block (15) is fixed on the other end of fixed link (16), described
Fixed block (14) is set on fixed link (16), and the spring (17) is arranged between fixed block (14) and push plate (5), described solid
Determine block (14) to connect by spring (17) with push plate (5), the spring (17) is set on fixed link (16), the limited block
(15) with fixed block (14) against.
4. the gate valve for the good seal performance of natural gas line as claimed in claim 3, which is characterized in that the fixation
Bar (16) is equipped with lubricating oil.
5. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the movement
The side of the close sealing ring (8) of plate (7) is equipped with floating rule (18), and the floating rule (18) is arranged between manhole and connecting hole, institute
Floating rule (18) is stated to be bonded with the inner wall of main body (1), the side of the interior bottom of the main body (1) is equipped with connector, the connector with
Floating rule (18) matching.
6. the gate valve for the good seal performance of natural gas line as claimed in claim 5, which is characterized in that the floating rule
(18) side of separate movable plate (7) is equipped with chamfering.
7. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the push plate
(5) side of separate manhole is equipped with arc port.
8. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the rotation
Axis is coated with stop-leak compound on (10).
9. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the knob
(9) it is equipped with anti-skid chequer.
10. the gate valve for the good seal performance of natural gas line as described in claim 1, which is characterized in that the people
Hole is equipped with protection cap (19), and protection cap (19) lid is located on 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 true CN109681655A (en) | 2019-04-26 |
| CN109681655B 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) |
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| 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 |
| CN104595512A (en) * | 2015-01-28 | 2015-05-06 | 石家庄阀门一厂股份有限公司 | Water-cooled double-valve-plate high-temperature gate valve |
| CN105065700A (en) * | 2015-07-13 | 2015-11-18 | 哈托利海托阀门（杭州）有限公司 | Self-sealing 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
Patent Citations (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 |
| CN104595512A (en) * | 2015-01-28 | 2015-05-06 | 石家庄阀门一厂股份有限公司 | Water-cooled double-valve-plate high-temperature gate valve |
| CN105065700A (en) * | 2015-07-13 | 2015-11-18 | 哈托利海托阀门（杭州）有限公司 | Self-sealing 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 |
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| CN109681655B (en) | 2020-06-09 |
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