CN111188940A - Manual opening device of emergency cut-off actuating mechanism of gate valve - Google Patents
Manual opening device of emergency cut-off actuating mechanism of gate valve Download PDFInfo
- Publication number
- CN111188940A CN111188940A CN201811350891.8A CN201811350891A CN111188940A CN 111188940 A CN111188940 A CN 111188940A CN 201811350891 A CN201811350891 A CN 201811350891A CN 111188940 A CN111188940 A CN 111188940A
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- CN
- China
- Prior art keywords
- ratchet wheel
- valve
- ratchet
- gate valve
- opening device
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- 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.)
- Pending
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Classifications
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a manual opening device of a gate valve emergency cut-off actuating mechanism, and particularly relates to the technical field of valve actuators. The device comprises a first ratchet wheel and a second ratchet wheel which are connected through a pin, wherein a rack and an operating handle are arranged below the first ratchet wheel and the second ratchet wheel, the rack and the operating handle are clamped through bolts in a matching way, and a ratchet claw matched with the first ratchet wheel and the second ratchet wheel is arranged on the operating handle; when the actuator normally operates, the device is dismantled and placed on one side for standby; when the valve cannot be opened due to failure, the operating handle controls the ratchet pawl to drive the first ratchet wheel and the second ratchet wheel to rotate, so that the valve rod connected with the ratchet pawl is controlled to move upwards, the valve rod is driven to move upwards by the movement of the valve rod to pull the valve to open, and the valve is started. When any trouble appears in actuating mechanism, the manual work utilizes the device homoenergetic to realize the action of opening of valve, easy operation, and the security is high, easy dismounting practices thrift the space.
Description
Technical Field
The invention relates to the technical field of valve actuators, in particular to a manual opening device of a gate valve emergency cut-off actuating mechanism.
Background
The actuating mechanism is an actuating control mechanism for opening and closing the valve, and has two main functions for the emergency cut-off actuating mechanism, wherein one function is the normal opening of the valve, and the other function is the function of automatically and rapidly cutting off the valve through self energy when no external energy source exists during an emergency event, so that the event is prevented from spreading.
At present, emergency cut-off actuating mechanisms are mainly divided into pneumatic actuating mechanisms, hydraulic actuating mechanisms and electric actuating mechanisms according to power sources, and each actuator achieves the purpose of rapid cut-off through different working principles. Chinese patent No. CN106931220A discloses an intelligent electrohydraulic control gate valve, which controls the opening and closing of the gate valve through electrohydraulic linkage, and the device has the advantages of compact structure, simple installation and debugging, low manufacturing cost, high control precision, and can realize intellectualization, remote control, high pressure resistance and high temperature resistance. However, under the condition that electric energy and hydraulic energy disappear, the gate valve cannot be manually opened by the device, potential safety hazards exist, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to solve the defects and provides a manual opening device of a gate valve emergency cut-off actuating mechanism, which is simple to operate, high in safety, convenient to disassemble and assemble and space-saving.
The invention specifically adopts the following technical scheme:
a manual opening device of a gate valve emergency cut-off actuating mechanism comprises a first ratchet wheel and a second ratchet wheel which are connected through a pin, a rack and an operating handle are installed below the first ratchet wheel and the second ratchet wheel, the rack and the operating handle are clamped through bolts in a matched mode, and a ratchet claw matched with the first ratchet wheel and the second ratchet wheel is arranged on the operating handle;
when the actuator normally operates, the device is dismantled and placed on one side for standby; when the valve cannot be opened due to failure, the operating handle controls the ratchet pawl to drive the first ratchet wheel and the second ratchet wheel to rotate, so that the valve rod connected with the ratchet pawl is controlled to move upwards, the valve rod is driven to move upwards by the movement of the valve rod to pull the valve to open, and the valve is started.
Preferably, the ratchet pawl includes a left pawl portion that controls the first ratchet wheel and the second ratchet wheel to rotate to the left, and a right pawl portion that controls the first ratchet wheel and the second ratchet wheel to rotate to the right.
Preferably, the internal threads of the first ratchet wheel and the second ratchet wheel are matched with the threads of the valve rod.
Preferably, the first ratchet wheel and the second ratchet wheel are semicircular, and straight edges of the first ratchet wheel and the second ratchet wheel are butted.
The invention has the following beneficial effects:
when the actuator normally operates, the device is dismantled and placed on one side for standby; when the valve cannot be opened due to failure, the operating handle controls the ratchet pawl to drive the first ratchet wheel and the second ratchet wheel to rotate, so that the valve rod connected with the ratchet pawl is controlled to move upwards, the valve rod is driven to move upwards by the movement of the valve rod to pull the valve to open, and the valve is started.
When any trouble appears in actuating mechanism, the manual work utilizes the device homoenergetic to realize the action of opening of valve, easy operation, and the security is high, easy dismounting practices thrift the space.
Drawings
FIG. 1 is a manual opening device of a gate valve emergency cutoff actuator;
FIG. 2 is a schematic view of the frame and operating handle;
fig. 3 is a schematic view of the structure of the device matched with a gate valve emergency cut-off actuating mechanism.
The emergency cut-off device comprises a base, a first ratchet wheel 1, a second ratchet wheel 2, a pin 3, a rack 4, a ratchet claw 5, an operating handle 6, a bolt 7, a gate valve emergency cut-off executing mechanism 8, a gate valve emergency cut-off executing mechanism manual opening device 9, a gate valve 10 and a valve rod 11.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-3, a manual opening device of a gate valve emergency cut-off actuating mechanism comprises a first ratchet wheel 1 and a second ratchet wheel 2 which are connected through a pin 3, a frame 4 and an operating handle 6 are installed below the first ratchet wheel 1 and the second ratchet wheel 2, the frame 4 and the operating handle 6 are clamped through a bolt 7 in a matching manner, and a ratchet claw 5 matched with the first ratchet wheel 1 and the second ratchet wheel 2 is arranged on the operating handle 6;
when the actuator normally operates, the device is dismantled and placed on one side for standby; when the valve cannot be opened due to a fault, the operating handle 6 controls the ratchet pawl 5 to drive the first ratchet wheel 1 and the second ratchet wheel 2 to rotate, so that the valve rod 11 connected with the ratchet pawl is controlled to move upwards, and the valve rod 11 moves to drive the valve rod to move upwards to pull the valve to open, so that the valve is started.
The ratchet pawl 5 includes a left pawl portion that controls the first ratchet 1 and the second ratchet 2 to rotate leftward, and a right pawl portion that controls the first ratchet 1 and the second ratchet 2 to rotate rightward.
The internal threads of the first ratchet wheel 1 and the second ratchet wheel 2 are matched with the threads of the valve rod 11.
The first ratchet wheel 1 and the second ratchet wheel 2 are semicircular, and straight edges of the first ratchet wheel and the second ratchet wheel are butted.
The manual opening device 9 of the gate valve emergency cut-off executing mechanism is matched with the gate valve emergency cut-off executing mechanism 8 to control the gate valve 10 to be opened and closed, so that the occupied space is small; the ratchet wheel device is adopted to increase the speed of opening the valve, so that the convenience of operation is enhanced; the manual opening device is added, so that the normal operation of any function of the quick cutting-off mechanism is not influenced.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (7)
1. A manual opening device of a gate valve emergency cut-off actuating mechanism is characterized by comprising a first ratchet wheel and a second ratchet wheel which are connected through a pin, wherein a rack and an operating handle are arranged below the first ratchet wheel and the second ratchet wheel, the rack and the operating handle are clamped through bolts in a matching way, and a ratchet claw matched with the first ratchet wheel and the second ratchet wheel is arranged on the operating handle;
when the actuator normally operates, the device is dismantled and placed on one side for standby; when the valve cannot be opened due to failure, the operating handle controls the ratchet pawl to drive the first ratchet wheel and the second ratchet wheel to rotate, so that the valve rod connected with the ratchet pawl is controlled to move upwards, the valve rod is driven to move upwards by the movement of the valve rod to pull the valve to open, and the valve is started.
2. The manual opening device of a gate valve emergency cutoff actuator of claim 1, wherein the ratchet pawl comprises a left pawl portion and a right pawl portion, the left pawl portion controlling the first ratchet wheel and the second ratchet wheel to rotate to the left, the right pawl portion controlling the first ratchet wheel and the second ratchet wheel to rotate to the right.
3. The manual opening device of a gate valve slam shut actuator of claim 1 wherein the internal threads of said first and second ratchet wheels are adapted to mate with the stem threads.
4. The manual opening device of a gate valve slam shut actuator of claim 2 wherein the internal threads of said first and second ratchet wheels are adapted to mate with the stem threads.
5. The manual opening device of a gate valve slam-shut actuator of claim 1 wherein said first ratchet wheel and said second ratchet wheel are semicircular in shape with straight sides abutting.
6. The manual opening device of a gate valve slam-shut actuator of claim 2, wherein said first ratchet wheel and said second ratchet wheel are semicircular in shape, and their straight sides are abutted.
7. The manual opening device of a gate valve slam-shut actuator of claim 3, wherein said first ratchet wheel and said second ratchet wheel are semicircular in shape, and their straight sides are abutted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350891.8A CN111188940A (en) | 2018-11-14 | 2018-11-14 | Manual opening device of emergency cut-off actuating mechanism of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350891.8A CN111188940A (en) | 2018-11-14 | 2018-11-14 | Manual opening device of emergency cut-off actuating mechanism of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188940A true CN111188940A (en) | 2020-05-22 |
Family
ID=70705148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811350891.8A Pending CN111188940A (en) | 2018-11-14 | 2018-11-14 | Manual opening device of emergency cut-off actuating mechanism of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188940A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU815405A1 (en) * | 1979-06-13 | 1981-03-23 | Предприятие П/Я В-8538 | Step-rotation drive |
| CN2168998Y (en) * | 1993-08-02 | 1994-06-15 | 王志军 | Self closing valve |
| CN202691226U (en) * | 2012-04-17 | 2013-01-23 | 扬州恒春电子有限公司 | Valve position counter used for multi-rotation electric actuator |
| CN203743569U (en) * | 2014-03-12 | 2014-07-30 | 乐清市奥格节能自控系统有限公司 | Electric actuator for electric heating valve |
| CN205173633U (en) * | 2015-10-30 | 2016-04-20 | 重庆市界石燃气设备有限公司 | Gas pipeline quick action emergency valve |
| CN107559479A (en) * | 2016-06-30 | 2018-01-09 | 中核核电运行管理有限公司 | Valve operation manipulator |
-
2018
- 2018-11-14 CN CN201811350891.8A patent/CN111188940A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU815405A1 (en) * | 1979-06-13 | 1981-03-23 | Предприятие П/Я В-8538 | Step-rotation drive |
| CN2168998Y (en) * | 1993-08-02 | 1994-06-15 | 王志军 | Self closing valve |
| CN202691226U (en) * | 2012-04-17 | 2013-01-23 | 扬州恒春电子有限公司 | Valve position counter used for multi-rotation electric actuator |
| CN203743569U (en) * | 2014-03-12 | 2014-07-30 | 乐清市奥格节能自控系统有限公司 | Electric actuator for electric heating valve |
| CN205173633U (en) * | 2015-10-30 | 2016-04-20 | 重庆市界石燃气设备有限公司 | Gas pipeline quick action emergency valve |
| CN107559479A (en) * | 2016-06-30 | 2018-01-09 | 中核核电运行管理有限公司 | Valve operation manipulator |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200522 |
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| RJ01 | Rejection of invention patent application after publication |