CN201844049U - Backward-acting gate valve - Google Patents
Backward-acting gate valve Download PDFInfo
- Publication number
- CN201844049U CN201844049U CN2010206022514U CN201020602251U CN201844049U CN 201844049 U CN201844049 U CN 201844049U CN 2010206022514 U CN2010206022514 U CN 2010206022514U CN 201020602251 U CN201020602251 U CN 201020602251U CN 201844049 U CN201844049 U CN 201844049U
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- China
- Prior art keywords
- valve body
- gate
- valve
- trigger
- spring
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a backward-acting gate valve which comprises a valve body (1), a gate (2), a driving rod (3) and a reset spring (4); both sides of the valve body (1) are respectively connected with an air inlet pipeline (6) and an air outlet pipeline (7); the gate (2) is arranged in the valve body (1); the gate (2) is provided with a circulation hole (20); the reset spring (4) is arranged below the gate (2); the top end of the gate (2) is fixedly connected with the driving rod (3); the top end of the valve body (1) is provided with a trigger (5); and the trigger (5) is connected with the driving rod (3) in the valve body (1). The utility model can make the air directly pass through the gate valve, does not erode and corrode the inner wall of the valve body, can automatically close the valve and intercept the air without any external force when the pressure is changed; and in addition, the gate valve can effectively protect the spring in the valve body, so that the spring is not corroded, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of acting in opposition gate valve.
Background technique
The valve that is used for natural gas line in the prior art mostly is joint and ends the formula cut-off valve, owing to need to change direction after gas enters valve, can wash away valve interior wall so, the long-time use, the valve interior wall relative with suction port gas wash away and corrode under can be more and more thinner, leak at last, plate valve can accomplish to allow gas straight, prevent the air scour valve interior wall, but this middle plateform valve mostly is hand switch, even it is can not cutting-off valve when pressure changes, very inconvenient.In the prior art, be provided with the flap type of electronic or Pneumatic actuator, but the switching of these valves need realize all by external force.
The model utility content
The purpose of this utility model is to provide a kind of acting in opposition gate valve; this gate valve can allow gas directly pass through gate valve; can not cause and wash away and corrode valve interior wall; but also can be not by external force when pressure changes; automatically with valve closing, gas is dammed, and this gate valve can also effectively be protected the valve body inner spring; it is not corroded, increase working life.
The technical solution of the utility model: a kind of acting in opposition gate valve, comprise valve body, flashboard, driveshaft and Returnning spring, the both sides of valve body are connected with outlet pipe with admission line respectively, the inside of valve body is provided with flashboard, flashboard is provided with opening, and the below of flashboard is provided with Returnning spring, fixedlys connected with driveshaft in the top of flashboard, the top of valve body is provided with trigger, and the driveshaft in trigger and the valve body is connected.
In the aforesaid acting in opposition gate valve, trigger comprises trigger housing, high pressure spring, epithelium, be provided with horizontal guide rod and Der Laengslenker in the trigger housing, laterally guide rod is connected with the Der Laengslenker vertical interlaced, laterally a side of guide rod is connected with spring seat, opposite side is connected with epithelium, and spring seat is connected with the adjusting bolt by the high pressure spring; The top of Der Laengslenker is connected with reset button, and the bottom surface is connected with driveshaft, and the middle part of Der Laengslenker is provided with groove, is provided with the location ball in the groove.It is by adjusting the adjusting bolt maximum pressure value that the pipeline epithelium can bear to be set that the purpose of regulating bolt is set.
In the aforesaid acting in opposition gate valve, epithelium is located in the damping chamber, and a side of damping chamber is connected with the trigger housing, and opposite side is provided with the pressure inlet tube interface, and the pressure inlet tube interface is connected with outlet pipe by the impulse pipeline.
Compared with prior art, the utility model is owing to adopt flap type can make gas directly by valve body, can not wash away and corrodes valve interior wall, increased the working life of valve body; Owing on valve body, be provided with trigger, when pressure changes, trigger can discharge driveshaft, and driveshaft is automatic-closing valve under the promotion of Returnning spring, and gas is dammed, need not to use exterior power, also need not manually-operable, and Returnning spring changed traditional spring setting, spring has been arranged on the below of flashboard, it is few to make it be subjected to corrosion, than the spring long service life above the flashboard be located at of general valve.
Description of drawings
Fig. 1 is the structural representation of the utility model open mode;
Fig. 2 is the structural representation of the utility model closed condition.
Being labeled as in the accompanying drawing: 1-valve body, 2-flashboard, 3-driveshaft, 4-Returnning spring, the 5-trigger, 6-admission line, 7-outlet pipe, 8-trigger housing, 9-high pressure spring, 10-epithelium, the horizontal guide rod of 11-, 12-Der Laengslenker, the 13-spring seat, 14-reset button, 15-groove, 16-locatees ball, 17-damping chamber, 18-pressure inlet tube interface, 19-impulse pipeline, the 20-opening, 21-regulates bolt.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment of the present utility model: a kind of acting in opposition gate valve, comprise valve body 1, flashboard 2, driveshaft 3 and Returnning spring 4, the both sides of valve body 1 are connected with outlet pipe 7 with admission line 6 respectively, the inside of valve body 1 is provided with flashboard 2, flashboard 2 is provided with opening 20, and the below of flashboard 2 is provided with Returnning spring 4, fixedlys connected with driveshaft 3 in the top of flashboard 2, the top of valve body 1 is provided with trigger 5, and the driveshaft 3 in trigger 5 and the valve body 1 is connected.Trigger 5 comprises trigger housing 8, high pressure spring 9, epithelium 10, be provided with horizontal guide rod 11 and Der Laengslenker 12 in the trigger housing 8, laterally guide rod 11 is connected with Der Laengslenker 12 vertical interlaceds, laterally a side of guide rod 11 is connected with spring seat 13, opposite side is connected with epithelium 10, and spring seat 13 is connected with adjusting bolt 21 by high pressure spring 9; The top of Der Laengslenker 12 is connected with reset button 14, and the bottom surface is connected with driveshaft 3, and the middle part of Der Laengslenker 12 is provided with groove 15, is provided with location ball 16 in the groove 15.Epithelium 10 is located in the damping chamber 17, and a side of damping chamber 17 is connected with trigger housing 8, and opposite side is provided with pressure inlet tube interface 18, and pressure inlet tube interface 18 is connected with outlet pipe 7 by impulse pipeline 19.
Working principle of the present utility model: the center of the center of the opening 20 on the normal state lower flashboard 2 and admission line 6 and outlet pipe 7 point-blank, be in circulation status, gas enters valve body 1 from admission line 6, flow out by outlet pipe 7 by opening 20, effluent air enters damping chamber 17 from the impulse pipeline 19 on the outlet pipe 7, gas pressure acts on the epithelium 10, when the pressure in the pipeline during greater than the maximum pressure value set, gas promotes epithelium 10, epithelium 10 drives horizontal guide rod 11 motions, laterally guide rod 10 promotes Der Laengslenker 12 rotations, to locate ball 16 when laterally guide rod 12 rotates and push away groove 15, this moment, Der Laengslenker 12 and driveshaft 3 moved upward under the effect of Returnning spring 4, and driveshaft 3 moves upward and drives flashboard 2 and move upward, and makes flap type reach current floe condition.When pressure recovery just often, clicking reset button can work on.
Claims (3)
1. acting in opposition gate valve, it is characterized in that: comprise valve body (1), flashboard (2), driveshaft (3) and Returnning spring (4), the both sides of valve body (1) are connected with outlet pipe (7) with admission line (6) respectively, the inside of valve body (1) is provided with flashboard (2), flashboard (2) is provided with opening (20), the below of flashboard (2) is provided with Returnning spring (4), fixedly connected with driveshaft (3) in the top of flashboard (2), the top of valve body (1) is provided with trigger (5), and the driveshaft (3) in trigger (5) and the valve body (1) is connected.
2. acting in opposition gate valve according to claim 1, it is characterized in that: trigger (5) comprises trigger housing (8), high pressure spring (9), epithelium (10), be provided with horizontal guide rod (11) and Der Laengslenker (12) in the trigger housing (8), laterally guide rod (11) is connected with Der Laengslenker (12) vertical interlaced, laterally a side of guide rod (11) is connected with spring seat (13), opposite side is connected with epithelium (10), and spring seat (13) is connected with adjusting bolt (21) by high pressure spring (9); The top of Der Laengslenker (12) is connected with reset button (14), and the bottom surface is connected with driveshaft (3), and the middle part of Der Laengslenker (12) is provided with groove (15), is provided with location ball (16) in the groove (15).
3. acting in opposition gate valve according to claim 1 and 2, it is characterized in that: epithelium (10) is located in the damping chamber (17), one side of damping chamber (17) is connected with trigger housing (8), opposite side is provided with pressure inlet tube interface (18), and pressure inlet tube interface (18) is connected with outlet pipe (7) by impulse pipeline (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206022514U CN201844049U (en) | 2010-11-11 | 2010-11-11 | Backward-acting gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206022514U CN201844049U (en) | 2010-11-11 | 2010-11-11 | Backward-acting gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844049U true CN201844049U (en) | 2011-05-25 |
Family
ID=44038941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206022514U Expired - Lifetime CN201844049U (en) | 2010-11-11 | 2010-11-11 | Backward-acting gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776241A (en) * | 2015-04-10 | 2015-07-15 | 浙江理工大学 | Flat gate valve used for dilute phase pneumatic conveying |
| CN108426058A (en) * | 2018-06-19 | 2018-08-21 | 张丽聪 | A kind of natural gas line connection control valve |
-
2010
- 2010-11-11 CN CN2010206022514U patent/CN201844049U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776241A (en) * | 2015-04-10 | 2015-07-15 | 浙江理工大学 | Flat gate valve used for dilute phase pneumatic conveying |
| CN108426058A (en) * | 2018-06-19 | 2018-08-21 | 张丽聪 | A kind of natural gas line connection control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
|
| CX01 | Expiry of patent term |