CN205331437U - Pneumatic stop valve - Google Patents
Pneumatic stop valve Download PDFInfo
- Publication number
- CN205331437U CN205331437U CN201521046352.7U CN201521046352U CN205331437U CN 205331437 U CN205331437 U CN 205331437U CN 201521046352 U CN201521046352 U CN 201521046352U CN 205331437 U CN205331437 U CN 205331437U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- valve
- spring
- dead bolt
- spool
- 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 - Fee Related
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model relates to a pneumatic stop valve. Mainly solved and do not locked when current pneumatic stop valve case is in the closed condition, leaded to sealed problem tight or not out of control. Its characterized in that: support frame (6) on be fixed with locking device (7), locking device (7) be single -acting cylinder including locking cylinder (71), spring bolt (72) and spring (73), locking cylinder (71), spring bolt (72) are as an organic whole with the piston rod of locking cylinder (71), install at the left intracavity that locks cylinder (71) spring (73), the outer wall of valve rod (2) is equipped with ring channel (8), and when case (3) were in closed encapsulated situation, ring channel (8) were just corresponding with spring bolt (72), ring channel (8) can be blocked automatically in spring bolt (72) under the effect of spring (73) in. Automatic locking when the case is in the closed condition makes the case keep encapsulated situation, sealed not tight or runaway phenomenon can not appear.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of pneumatic stopping valve。
Background technology
Stop valve is a kind of conventional valve, and its effect is connection or the medium blocking in pipeline。Existing pneumatic stopping valve is mainly made up of valve body, spool and cylinder, and spool is connected directly between on the piston rod of cylinder, and cylinder is single-acting cylinder or double-acting cylinder。When cylinder is single-acting cylinder, it is provided with spring in cylinder, under normal circumstances, spring acts on and promotes spool and the valve seat laminating on valve body on cylinder piston, makes valve block, after cylinder activation source of the gas, overcoming the elastic force of spring, band movable valve plug is lifted off a seat, and makes valve open。When cylinder is double-acting cylinder, without spring in cylinder, utilizing reversal valve to control cylinder and open or block, cylinder needs to protect all the time to connect source of the gas state。The pneumatic stopping valve of above-mentioned both structures is kept the closing force of spool respectively by spring or source of the gas, owing to not locking when spool is closed, easily makes valve opening, poorly sealed or out-of-control phenomenon occur under pressure medium effect。
Utility model content
In order to overcome existing pneumatic stopping valve spool not lock when being closed, cause deficiency poorly sealed or out of control, this utility model provides a kind of pneumatic stopping valve, this pneumatic stopping valve adds locking device, automatically lock when spool is closed, make spool keep sealing state, do not have poorly sealed or out-of-control phenomenon。
The technical solution of the utility model is: a kind of pneumatic stopping valve includes valve body, valve rod, spool and cylinder, the piston rod of cylinder and valve rod are integrated, described valve body is connected to valve gap, valve gap is provided with bracing frame, being fixed with locking device on described bracing frame, described locking device includes lock cylinder, dead bolt and spring, and lock cylinder is single-acting cylinder, the piston rod of dead bolt and lock cylinder is integrated, and spring is arranged on the left intracavity of lock cylinder；The outer wall of valve rod is provided with cannelure, and when spool is in closing seam state, cannelure is just corresponding with dead bolt, and dead bolt can snap onto in cannelure under the action of the spring automatically。
The front end of described dead bolt is circular arc and upper surface is downward-sloping inclined-plane。
Described bracing frame is C type。
This utility model has the advantages that owing to taking technique scheme, when the valve is closed, dead bolt auto-extending under the action of the spring and its end enter in the cannelure of valve rod, valve rod is locked, can automatically lock when spool is closed, pressure medium effect lower valve rod will not on move, make spool keep sealing state, do not have poorly sealed or out-of-control phenomenon。
Accompanying drawing explanation
Accompanying drawing 1 is structure sectional view of the present utility model。
Accompanying drawing 2 is the structure sectional view of locking device 7 in Fig. 1。
Accompanying drawing 3 is the structural representation of dead bolt 72 in Fig. 2。
1-valve body in figure, 2-valve rod, 3-spool, 4-cylinder, 5-valve gap, 6-bracing frame, 7-locking device, 71-cylinder, 72-dead bolt, 73-spring, 8-cannelure。
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in Fig. 1～Fig. 3, a kind of pneumatic stopping valve, including valve body 1, valve rod 2, spool 3 and cylinder 4, the piston rod of cylinder 4 and valve rod 2 are integrated, and described valve body 1 is connected to valve gap 5, valve gap 5 is provided with bracing frame 6, being fixed with locking device 7 on described bracing frame 6, described locking device 7 includes lock cylinder 71, dead bolt 72 and spring 73, and lock cylinder 71 is single-acting cylinder, the piston rod of dead bolt 72 and lock cylinder 71 is integrated, and spring 73 is arranged on the left intracavity of lock cylinder 71；The outer wall of valve rod 2 is provided with cannelure 8, and when spool 3 is in closing seam state, cannelure 8 is just corresponding with dead bolt 72, and dead bolt 72 can automatically snap onto in cannelure 8 under the effect of spring 73。Owing to taking technique scheme, when the valve is closed, dead bolt 72 auto-extending and its end under the effect of spring 73 enter in the cannelure 8 of valve rod 2, valve rod 2 is locked, can automatically lock when spool 3 is closed, pressure medium effect lower valve rod 2 will not on move, make spool 3 keep sealing state, do not have poorly sealed or out-of-control phenomenon。
The front end of described dead bolt 72 is circular arc and upper surface is downward-sloping inclined-plane。When valve is opened, lock cylinder 71 is ventilated, and compresses spring 73, and the piston driving dead bolt 72 of lock cylinder 71 is moved to the left, and dead bolt 72 exits from cannelure 8, it is achieved unlocking, then make cylinder 4 action lift up valve rod, valve is opened。The front end of dead bolt 72 is that circular arc makes valve rod 2 more stable when lock-out state, and the upper surface of the front end of dead bolt 72 is downward-sloping inclined-plane, and when unlocking, dead bolt 72 easily exits cannelure 8, will not be stuck。
Described bracing frame 6 is C type。Simple in construction, it is simple to processing and assembling。
Claims (3)
1. a pneumatic stopping valve, including valve body (1), valve rod (2), spool (3) and cylinder (4), the piston rod of cylinder (4) and valve rod (2) are integrated, described valve body (1) is connected to valve gap (5), valve gap (5) is provided with bracing frame (6), it is characterized in that: described bracing frame (6) is fixed with locking device (7), described locking device (7) includes lock cylinder (71), dead bolt (72) and spring (73), lock cylinder (71) is single-acting cylinder, the piston rod of dead bolt (72) and lock cylinder (71) is integrated, spring (73) is arranged on the left intracavity of lock cylinder (71)；The outer wall of valve rod (2) is provided with cannelure (8), when spool (3) is in closing seam state, cannelure (8) is just corresponding with dead bolt (72), and dead bolt (72) can automatically snap onto in cannelure (8) under the effect of spring (73)。
2. a kind of pneumatic stopping valve according to claim 1, it is characterised in that: the front end of described dead bolt (72) is circular arc and upper surface is downward-sloping inclined-plane。
3. a kind of pneumatic stopping valve according to claim 2, it is characterised in that: described bracing frame (6) is C type。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046352.7U CN205331437U (en) | 2015-12-15 | 2015-12-15 | Pneumatic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046352.7U CN205331437U (en) | 2015-12-15 | 2015-12-15 | Pneumatic stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331437U true CN205331437U (en) | 2016-06-22 |
Family
ID=56207840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521046352.7U Expired - Fee Related CN205331437U (en) | 2015-12-15 | 2015-12-15 | Pneumatic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930798A (en) * | 2018-06-26 | 2018-12-04 | 江苏圣泰阀门有限公司 | Totally-enclosed high-voltage safety valve |
| CN109140012A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of pair is isolated Fixed ball valve of releasing |
| CN110566712A (en) * | 2019-09-29 | 2019-12-13 | 鞍山电磁阀有限责任公司 | Self-holding type electromagnetic valve |
-
2015
- 2015-12-15 CN CN201521046352.7U patent/CN205331437U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930798A (en) * | 2018-06-26 | 2018-12-04 | 江苏圣泰阀门有限公司 | Totally-enclosed high-voltage safety valve |
| CN109140012A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of pair is isolated Fixed ball valve of releasing |
| CN110566712A (en) * | 2019-09-29 | 2019-12-13 | 鞍山电磁阀有限责任公司 | Self-holding type electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20181215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |