CN212004332U - Gate valve with emergency closing function - Google Patents
Gate valve with emergency closing function Download PDFInfo
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- CN212004332U CN212004332U CN202020470317.2U CN202020470317U CN212004332U CN 212004332 U CN212004332 U CN 212004332U CN 202020470317 U CN202020470317 U CN 202020470317U CN 212004332 U CN212004332 U CN 212004332U
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Abstract
The utility model provides a gate valve with simple structure, convenient use and emergency closing function, which comprises a valve body, a valve rod, a valve plate, a thread bush and a valve cover, the valve body is internally provided with a fluid passage, the upper end of the valve body is integrally formed with an upper valve seat, the valve cover is fixedly arranged on the upper valve seat, a sealed upper cavity is formed in the upper valve seat, the valve plate can be arranged in the fluid channel in a sliding manner up and down, a through hole is arranged in the valve plate, the valve rod is rotatably arranged on the valve cover, the bottom of the valve rod extends into the through hole, the threaded sleeve is in threaded connection with the valve rod, the top of the valve plate is provided with a ring sleeve extending into the upper cavity, the inner cavity for the valve rod to penetrate through and be communicated with the through hole is formed in the ring sleeve, the threaded sleeve is sleeved in the inner cavity, and the ring sleeve is detachably connected with the threaded sleeve through a limiting structure.
Description
Technical Field
The utility model relates to a gate valve, in particular to gate valve with emergency shutdown function.
Background
The gate valve is an opening and closing member flashboard, the motion direction of flashboard is perpendicular to the fluid direction, the gate valve only can be opened and closed completely, can not be adjusted and throttled, in the prior art, the non-rising stem gate valve has a valve plate, the valve plate is fixedly connected with a nut sleeve, a hand wheel drives a valve rod to rotate, the valve plate is lifted and lowered in the valve body under the action of the nut sleeve and a guide sleeve, so that the full opening or the full closing of the gate valve is realized, when the gate valve is in the full opening state, if the valve needs to be closed in emergency, the valve can be closed only in a mode of rotating the valve rod, so that the valve closing time is overlong, and the emergency closing can not.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a simple structure, convenient to use, and have the emergency shutdown function's gate valve.
In order to realize the technical problem, the utility model adopts the solution that the gate valve with the emergency closing function comprises a valve body, a valve rod, a valve plate, a threaded sleeve and a valve cover, wherein a fluid passage is arranged in the valve body, an upper valve seat is integrally formed at the upper end of the valve body, the valve cover is fixedly installed on the upper valve seat, a sealed upper cavity is formed in the upper valve seat, the valve plate can be arranged in the fluid passage in a sliding way up and down, a perforation is arranged in the valve plate, the valve rod is rotatably installed on the valve cover, the bottom of the valve rod extends into the perforation, the threaded sleeve is in threaded connection with the valve rod, the top of the valve plate is provided with a ring sleeve extending into the upper cavity, an inner cavity for the valve rod to pass through and be communicated with the perforation is arranged in the ring sleeve, the threaded sleeve is sleeved in the inner cavity, and the ring sleeve is detachably connected with, the annular sleeve and be equipped with between the thread bush and enable the valve plate springback elastic component that resets downwards, be equipped with the observation window that can open on the lateral wall of going up the disk seat.
The further improvement is that: the limiting structure comprises a pin rod, a through hole is radially formed in the periphery of the ring sleeve, a blind hole which coaxially corresponds to the through hole is formed in the periphery of the threaded sleeve, and one end of the pin rod penetrates through the through hole and is elastically tensioned in the corresponding blind hole.
The further improvement is that: the outer end of the pin rod extends to the outside of the ring sleeve, and the outer end of the pin rod is fixedly connected with a pull ring.
The further improvement is that: the elastic piece comprises a spring, the spring is accommodated in the inner cavity, one end of the spring is propped against the threaded sleeve, the other end of the spring is propped against the bottom of the inner cavity, and the spring is in a compressed energy storage state.
The further improvement is that: the fluid passage is internally provided with a guide groove which is longitudinally arranged, the valve plate is arranged in the guide groove in a sliding manner, and the upper port of the guide groove is provided with a sealing ring.
The further improvement is that: and a hand wheel is fixedly arranged at the top of the valve rod.
The further improvement is that: the middle section fixed mounting of valve rod has the limiting plate, works as when the valve plate is in full open mode, the thread bush contradicts in the bottom of limiting plate.
By adopting the technical scheme, the beneficial effects of the utility model are that:
this gate valve has the ring cover through integrated into one piece on the valve plate, can dismantle through limit structure between ring cover and the thread bush and be connected, and is provided with the elastic component that is in the energy storage state between ring cover and the thread bush to can make ring cover and thread bush separation through moving limit structure, the valve plate resets downwards fast under the effect of elastic component, thereby realizes the tight and urgent floodgate that closes, has improved the security performance of gate valve effectively.
Drawings
Fig. 1 is a schematic structural diagram of a gate valve with an emergency closing function according to an embodiment of the present invention.
Fig. 2 is a schematic view of an opening state of the gate valve with an emergency closing function according to the embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a of the gate valve having the emergency closing function according to the embodiment of the present invention.
In the figure: the valve comprises a hand wheel 1, a valve cover 2, a limit plate 3, an upper cavity 4, an upper valve seat 5, a valve rod 6, a guide groove 7, a sealing ring 8, a perforation 9, a valve plate 10, a fluid channel 11, a valve body 12, a spring 13, a ring sleeve 14, an inner cavity 15, a pin rod 16, a threaded sleeve 17, a pull ring 18 and an observation window 19.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
referring to fig. 1 to 3, disclosed in the embodiment of the present invention is a gate valve with an emergency closing function, including a valve body 12, a valve rod 6, a valve plate 10, a threaded sleeve 17 and a valve cover 2, wherein a fluid channel 11 is provided in the valve body 12, an upper valve seat 5 is integrally formed at the upper end of the valve body 12, the valve cover 2 is fixedly mounted on the upper valve seat 5, a sealed upper cavity 4 is formed in the upper valve seat 5, the valve plate 10 is slidably disposed in the fluid channel 11, specifically, a guide groove 7 is provided in the fluid channel 11, the valve plate 10 is slidably disposed in the guide groove 7, a sealing ring 8 is installed at an upper port of the guide groove 7, a through hole 9 is provided in the valve plate 10, the top opening and the bottom of the through hole 9 are sealed, the valve rod 6 is rotatably mounted on the valve cover 2, and the bottom of the valve rod 6 extends into the through hole 9, the top of the valve rod 6 penetrates out of the valve cover 2, a hand wheel 1 is fixedly mounted at the top of the valve rod 6, the threaded sleeve 17 is in threaded connection with the valve rod 6, the top of the valve plate 10 is provided with a ring sleeve 14 extending into the upper cavity 4, the ring sleeve 14 can be integrally formed with the valve plate 10, an inner cavity 15 which is used for the valve rod 6 to pass through and communicated with the through hole 9 is formed in the ring sleeve 14, the inner cavity 15 is a cylindrical cavity, the radius of the inner cavity 15 is larger than that of the through hole 9, the threaded sleeve 17 is sleeved in the inner cavity 15, the bottom end of the threaded sleeve 17 extends into the inner cavity 15, the top end of the threaded sleeve 17 extends out of the ring sleeve 14, the ring sleeve 14 is detachably connected with the threaded sleeve 17 through a limiting structure, the ring sleeve 14 can be separated from the threaded sleeve 17 through the limiting structure, so that the threaded sleeve 17 is separated from the valve plate 10, and an elastic piece which can enable the valve plate 10 to rebound and reset downwards is, this elastic component is in the energy storage state all the time, when the gate valve is in full open mode, under the condition that needs emergency shut-off, thereby when making thread bush 17 and ring cover 14 separate through moving limit structure, at this moment, the elastic component resets and releases the ability to make valve plate 10 slide down fast under the effect of elastic component, thereby realize emergency shut-off valve, be equipped with observation window 19 that can open on the lateral wall of going up disk seat 5, make epicoele 4 can be opened through setting up of observation window 19, and then be convenient for move limit structure.
In this embodiment, specifically, the limiting structure includes a pin rod 16, a through hole is radially formed in the outer periphery of the ring sleeve 14, a blind hole coaxially corresponding to the through hole is formed in the outer periphery of the threaded sleeve 17, one end of the pin rod 16 penetrates through the through hole and the plug into the corresponding blind hole, the ring sleeve 14 is connected with the threaded sleeve 17 through the pin rod 16, in an emergency closing state, the pin rod 16 is pulled out, the pin rod 16 is a rod made of metal with a small amount of elastic deformation, and when the pin rod 16 is inserted into the blind hole, the pin rod 16 can deform, so that the pin rod and the wall of the blind hole are tensioned, further, in order to facilitate pulling out the pin rod 16, the outer end of the pin rod 16 extends out of the ring sleeve 14, and the outer end of the pin rod 16 is fixedly connected with a pull ring 18.
In this embodiment, specifically, the elastic member includes a spring 13, the spring 13 is accommodated in the inner cavity 15, one end of the spring 13 abuts against the threaded sleeve 17, the other end of the spring 13 abuts against the bottom of the inner cavity 15, and the spring 13 is in a compressed energy storage state.
In this embodiment, it is preferred, the middle section fixed mounting of valve rod 6 has limiting plate 3, works as when valve plate 10 is in full open mode, thread bush 17 contradict in limiting plate 3's bottom, through limiting plate 3's setting for valve plate 10 can carry out spacingly under full open mode, avoids valve rod 6's excessive rotation to cause the internal thread between valve rod 6 and the thread bush 17 to produce wearing and tearing, improves life.
Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.
Claims (7)
1. The utility model provides a gate valve with emergency shutdown function, includes valve body, valve rod, valve plate, thread bush and valve gap, fluid passage has in the valve body, the upper end integrated into one piece of valve body has last disk seat, valve gap fixed mounting have go up on the disk seat, go up and form sealed epicoele in the disk seat, the valve plate can slide from top to bottom set up in the fluid passage, the perforation has been seted up in the valve plate, the valve rod rotates to be installed on the valve cap, the bottom of valve rod extends to in the perforation, the thread bush with valve rod threaded connection, its characterized in that: the top of valve plate has and extends to go up the ring cover of intracavity, have in the ring cover supply the valve rod pass and with the inner chamber of perforation intercommunication, the thread bush cover is established in the inner chamber, the ring cover with can dismantle the connection through limit structure between the thread bush, the ring cover with be equipped with between the thread bush and make the elastic component that the valve plate kick-backed downwards and reset, be equipped with the observation window that can open on the lateral wall of going up the disk seat.
2. The gate valve with emergency closing function according to claim 1, wherein: the limiting structure comprises a pin rod, a through hole is radially formed in the periphery of the ring sleeve, a blind hole which coaxially corresponds to the through hole is formed in the periphery of the threaded sleeve, and one end of the pin rod penetrates through the through hole and is elastically tensioned in the corresponding blind hole.
3. The gate valve with emergency closing function according to claim 2, wherein: the outer end of the pin rod extends to the outside of the ring sleeve, and the outer end of the pin rod is fixedly connected with a pull ring.
4. The gate valve with emergency closing function according to claim 1, wherein: the elastic piece comprises a spring, the spring is accommodated in the inner cavity, one end of the spring is propped against the threaded sleeve, the other end of the spring is propped against the bottom of the inner cavity, and the spring is in a compressed energy storage state.
5. The gate valve with emergency closing function according to claim 1, wherein: the fluid passage is internally provided with a guide groove which is longitudinally arranged, the valve plate is arranged in the guide groove in a sliding manner, and the upper port of the guide groove is provided with a sealing ring.
6. The gate valve with emergency closing function according to claim 1, wherein: and a hand wheel is fixedly arranged at the top of the valve rod.
7. The gate valve with emergency closing function according to claim 1, wherein: the middle section fixed mounting of valve rod has the limiting plate, works as when the valve plate is in full open mode, the thread bush contradicts in the bottom of limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020470317.2U CN212004332U (en) | 2020-04-02 | 2020-04-02 | Gate valve with emergency closing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020470317.2U CN212004332U (en) | 2020-04-02 | 2020-04-02 | Gate valve with emergency closing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004332U true CN212004332U (en) | 2020-11-24 |
Family
ID=73405044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020470317.2U Active CN212004332U (en) | 2020-04-02 | 2020-04-02 | Gate valve with emergency closing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864470A (en) * | 2021-09-23 | 2021-12-31 | 海门倍乐斯通机械有限公司 | Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve |
-
2020
- 2020-04-02 CN CN202020470317.2U patent/CN212004332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864470A (en) * | 2021-09-23 | 2021-12-31 | 海门倍乐斯通机械有限公司 | Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve |
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