Manual reset valve
Through the split spindle and piston structure, combined with manual and automatic control, the limiting parts and spring mechanisms are used to realize the fast path switching of the manual reset valve, which solves the problem that manual reset valves are difficult to quickly control in emergency situations in the prior art, and improves the problem of the manual reset valves being difficult to control quickly in emergency situations. Flexibility and reliability of pipeline control.
Patent Information
- Application Number
- CN202421208303.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing manual reset valves are difficult to quickly close or open pipelines in emergencies, and the control method is single and not flexible enough.
A manual reset valve is designed, adopting a split spindle and piston structure, combining manual and automatic control methods to achieve rapid displacement and recovery of the spindle through the limiting parts and spring mechanism, allowing manual operation through the mushroom handle or automatic pneumatic/hydraulic source Control to realize fast switching of paths.
In emergency situations, it is possible to quickly control the opening or closing of the passage, avoid losses, and maintain the stable state of the passage under normal circumstances, improving the flexibility and reliability of pipeline control.
Smart Images
Figure CN222316016U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of valves, in particular to a manual reset valve. Background Art
[0002] In some pipeline valve control systems such as oil fields and gas storage facilities, manual reset valves are widely used because of their sufficient reliability.
[0003] The spindle and piston of the existing manual reset valve are generally of integrated design. The piston is located at the corresponding position by manually controlling the displacement of the spindle to open or close the corresponding passage. The control method is relatively simple. If an emergency occurs, it is difficult to close or open the corresponding passage in a short time through manual control. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the utility model provides a manual reset valve, which has the advantages of manually and automatically coordinating the opening or closing of the corresponding passage of the manual reset valve.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manual reset valve, comprising a reset valve body, the reset valve body comprising a valve body and a first end cover and a second end cover which are detachably arranged at both ends of the valve body, a chamber is formed inside the valve body, and a first valve port, a second valve port and a third valve port which are connected to the chamber are arranged on the outer wall of the valve body; the valve body is coaxially provided with a main shaft and a piston, respectively, the main shaft and the piston are separately arranged, a first spring sleeved on the outer wall of the main shaft is arranged in the chamber, the main shaft is used to switch the opening or closing between the first valve port and the second valve port, the second valve port and the third valve port; the first spring is used to provide a restoring force for the movement of the main shaft in the chamber, the main shaft is movable in the valve body chamber and one end extends out of the first end cover, a mushroom handle is arranged at one end of the main shaft extending out of the first end cover, a limiter is arranged at the first end cover, the limiter is used to extend into the chamber to limit the main shaft, the piston is arranged at the second end cover, the second end cover is provided with a guide plug hole, and the guide plug hole is used to connect a driving source.
[0006] Preferably, two first sealing rings are provided at intervals at both ends of the chamber at the corresponding section of the main shaft. Under normal conditions, the passages of the first valve port and the second valve port are closed, and the second valve port and the third valve port are open.
[0007] Preferably, a spring installation cavity is formed at the first end cover, the axial cross-sectional area of the spring installation cavity is larger than the axial cross-sectional area of the chamber, the first spring is arranged at the spring installation cavity, the main shaft sleeve is provided with a first retaining ring, one end of the first spring abuts against the first retaining ring and the other end abuts against an end wall of the spring installation cavity.
[0008] Preferably, a travel groove is formed at the corresponding end of the chamber close to the second end cover, the axial cross-sectional area of the travel groove is larger than the axial cross-sectional area of the chamber, and the main shaft is located in the travel groove and provided with a second retaining ring, and the second retaining ring is used to limit the travel of the main shaft.
[0009] Preferably, the limit member includes a sleeve threadedly connected to the first end cover, the sleeve axially being perpendicular to the axial direction of the valve body, the sleeve forming an axial cavity along the axial direction, a pin being movably provided in the axial cavity, a second spring located in the axial cavity being provided on the outer wall of the pin, the second spring being used for providing a restoring force for the movement of the pin in the axial cavity, a slot being provided at the corresponding section of the main shaft, the slot being arranged circumferentially along the main shaft, the end of the pin being used for extending into the cavity and for being engaged in the slot.
[0010] Preferably, the mushroom handle is threadedly connected to the end of the main shaft extending out of the first end cover.
[0011] Preferably, the first end cover and the second end cover are detachably fixed to both ends of the valve body by bolts respectively.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] 1. The utility model sets two modes of manual control and automatic control. In actual use, the reset valve body is applied to the corresponding pipeline control system node, and then the corresponding pipelines are respectively connected to the first valve port, the second valve port and the third valve port. The staff can operate the mushroom handle for manual control or automatically control the main shaft displacement through a pneumatic source or a hydraulic source to achieve the flow or cutoff between the first valve port and the second valve port, and the second valve port and the third valve port. Then, the main shaft is limited by the pin shaft at the limiter to achieve the first valve port and the second valve port in a normally open state, and the second valve port and the third valve port in a normally closed state; if an emergency occurs, the corresponding passage can be controlled to be closed or opened in a relatively short time through free switching in manual or automatic form to avoid losses.
[0014] 2. In the utility model, after the limiting member limits the main shaft, if an emergency situation occurs, the hydraulic source or the pneumatic source causes the main shaft to move, and the end of the pin shaft retracts into the shaft cavity under the action of the second spring. At this time, the hydraulic source or the pneumatic source releases the action on the piston, and the main shaft returns to its initial state under the action of the first spring after the limit is released. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the reset valve body in the utility model;
[0016] Figure 2 It is a cross-sectional schematic diagram of the reset valve body in the utility model.
[0017] In the figure: 100, reset valve body; 110, valve body; 120, first end cover; 130, second end cover; 131, guide plug hole; 140, mushroom handle; 210, chamber; 211, spring installation chamber; 212, travel groove; 213, first spring; 220, main shaft; 221, first retaining ring; 222, second retaining ring; 223, slot; 230, piston; 241, first valve port; 242, second valve port; 243, third valve port; 250, bushing; 251, shaft chamber; 260, pin; 270, second spring. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figure 1 to Figure 2 As shown, the utility model provides a manual reset valve, which includes a reset valve body 100, the reset valve body 100 includes a valve body 110 and a first end cover 120 and a second end cover 130 respectively arranged at both ends of the valve body 110, the first end cover 120 and the second end cover 130 are respectively detachably fixed to the two ends of the valve body 110 by bolts; a chamber 210 is formed inside the valve body 110, and a first valve port 241, a second valve port 242 and a third valve port 243 communicating with the chamber 210 are provided on the outer wall of the valve body 110; the first valve port 241, the second valve port 242 and the third valve port 243 are sequentially arranged along the axial direction of the chamber 210, and the first valve port 241 and the third valve port 243 are located on the same side of the outer wall of the valve body 110, and the second valve port 242 is arranged on the other side.
[0020] Through the above structure, when the reset valve body 100 is applied to the corresponding pipeline control system node, the corresponding pipelines can be connected to the first valve port 241, the second valve port 242 and the third valve port 243 respectively, so that the reset valve body 100 controls the flow or cutoff between the first valve port 241, the second valve port 242 and the third valve port 243.
[0021] Specifically, the valve body 110 is coaxially movable with a main shaft 220 and a piston 230, and the main shaft 220 and the piston 230 are separately arranged. A first spring 213 is provided in the chamber 210 and is sleeved on the outer wall of the main shaft 220. The first spring 213 is used to provide a movement restoring force for the main shaft 220 in the chamber 210. The corresponding section of the main shaft 220 is located at both ends of the chamber 210 and is respectively provided with two first sealing rings. The main shaft 220 is used to switch the opening or closing between the first valve port 241 and the second valve port 242, and the second valve port 242 and the third valve port 243. Under normal conditions, the first valve port 241 and the second valve port 242 are closed under the action of the two first sealing rings, and the second valve port 242 and the third valve port 243 are opened under the action of the two first sealing rings. After the main shaft 220 moves, the first valve port 241 and the second valve port 242 are opened under the action of the two first sealing rings, and the second valve port 242 and the third valve port 243 are closed under the action of the two first sealing rings.
[0022] Through the above structure, when the main shaft 220 moves axially along the chamber 210 manually or automatically, the first valve port 241 and the second valve port 242, and the second valve port 242 and the third valve port 243 can be switched to open or close.
[0023] Specifically, a spring installation cavity 211 is formed at the first end cover 120, and the axial cross-sectional area of the spring installation cavity 211 is larger than the axial cross-sectional area of the chamber 210. The first spring 213 is arranged at the spring installation cavity 211, and the main shaft 220 is sleeved with a first retaining ring 221, and the first retaining ring 221 is fixedly arranged on the outer wall of the main shaft 220. One end of the first spring 213 abuts against the first retaining ring 221, and the other end abuts against one end wall of the spring installation cavity 211; wherein, the matching part of the first end cover 120 and the valve body 110, the matching part of the second end cover 130 and the valve body 110, and the corresponding section of the main shaft 220 and the chamber 210 are all provided with a second sealing ring; Figure 2 The black parts in the figure indicate the corresponding first sealing ring, second sealing ring and third sealing ring.
[0024] Through the above-mentioned structure, the first spring 213 sleeved on the outer wall of the main shaft 220 can be in a compressed state after the main shaft 220 is displaced. After the following limit member releases the limit on the main shaft 220, the first spring 213 presses against the first retaining ring 221 to drive the main shaft 220 to return to its initial state, that is, switching from the open state of the first valve port 241 and the second valve port 242 to the open state of the second valve port 242 and the third valve port 243.
[0025] Specifically, the main shaft 220 is movably located in the chamber 210 of the valve body 110 and one end thereof extends out of the first end cover 120 . A mushroom stem 140 is provided at the end of the main shaft 220 extending out of the first end cover 120 . The mushroom stem 140 is threadedly connected to the end of the main shaft 220 extending out of the first end cover 120 .
[0026] Through the above structure, the mushroom handle 140 can be convenient for manual operation by the staff to achieve the flow or cutoff of the first valve port 241 and the second valve port 242, or the second valve port 242 and the third valve port 243.
[0027] Specifically, a limit member is provided at the first end cover 120, and the limit member is used to extend into the chamber 210 to limit the main shaft 220. The limit member includes a sleeve 250 threadedly connected to the first end cover 120, and the axial direction of the sleeve 250 is perpendicular to the axial direction of the valve body 110. The sleeve 250 is axially formed with an axial cavity 251, and a pin 260 is movably provided in the axial cavity 251. The outer wall of the pin 260 is sleeved with a second spring 270 located in the axial cavity 251. The second spring 270 is used to provide a movement restoring force for the pin 260 in the axial cavity 251. A corresponding section of the main shaft 220 is provided with a slot 223, and the slot 223 is arranged circumferentially along the main shaft 220. The end of the pin 260 is used to extend into the chamber 210 and to be inserted into the slot 223.
[0028] Through the above-mentioned structure, after the staff drives the main shaft 220 to move in the chamber 210 through the mushroom handle 140, they can press the pin shaft 260 to insert the end of the pin shaft 260 into the slot 223 of the main shaft 220, thereby realizing the linear positioning of the main shaft 220. That is, under the action of the limit member, the first valve port 241 and the second valve port 242 can remain in the open state, and the second valve port 242 and the third valve port 243 can remain in the closed state.
[0029] Specifically, the piston 230 is arranged at the second end cover 130, and the second end cover 130 is provided with a guide plug hole 131, and the guide plug hole 131 is used to connect to a driving source, and the driving source adopts a hydraulic source or a pneumatic source; wherein, a stroke groove 212 is formed at the corresponding end of the chamber 210 close to the second end cover 130, and the axial cross-sectional area of the stroke groove 212 is larger than the axial cross-sectional area of the chamber 210, and the main shaft 220 is located in the stroke groove 212 and is provided with a second retaining ring 222, and the second retaining ring 222 is used to limit the stroke of the main shaft 220.
[0030] Through the above structure, the piston 230 abuts against one side of the main shaft 220 and the outer wall of the piston 230 is sealed with the inner wall of the chamber 210 through the third sealing ring. The hydraulic source or the pneumatic source can cooperate with the piston 230 at the self-guided plug hole 131. For example, the pneumatic source can push the piston 230 to move through the air source. The piston 230 drives the main shaft 220 to overcome the elastic force of the first spring 213, so that the main shaft 220 moves in the chamber 210, thereby realizing the flow or cutoff of the first valve port 241 and the second valve port 242, the second valve port 242 and the third valve port 243.
[0031] It is worth mentioning that after the limit member limits the main shaft 220, if an emergency situation occurs, the hydraulic source or the pneumatic source causes the main shaft 220 to move, and the pin shaft 260 is retracted into the shaft cavity 251 under the action of the second spring 270. At this time, the hydraulic source or the pneumatic source releases the action on the piston 230, and the main shaft 220 returns to its initial state under the action of the first spring 213 after the limit is released.
[0032] When this embodiment is actually used, the reset valve body 100 is applied to the corresponding pipeline control system node, and then the corresponding pipelines are connected to the first valve port 241, the second valve port 242 and the third valve port 243 respectively. The staff can operate the mushroom handle 140 to manually control or automatically control the displacement of the main shaft 220 through a pneumatic source or a hydraulic source to achieve the flow or cutoff between the first valve port 241 and the second valve port 242, the second valve port 242 and the third valve port 243, and then limit the main shaft 220 through the pin shaft 260 at the limit member to achieve the first valve port 241 and the second valve port 242 in a normally open state, and the second valve port 242 and the third valve port 243 in a normally closed state; if an emergency occurs, through free switching in manual or automatic form, the corresponding passage can be controlled to be closed or opened in a relatively short time to avoid losses.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A manual reset valve, characterized in that: The reset valve body (100) comprises a valve body (110) and a first end cover (120) and a second end cover (130) which are detachably arranged at both ends of the valve body (110); a chamber (210) is formed inside the valve body (110); a first valve port (241), a second valve port (242) and a third valve port (243) which are connected to the chamber (210) are arranged on the outer wall of the valve body (110); a main shaft (220) and a piston (230) are coaxially arranged on the valve body (110); the main shaft (220) and the piston (230) are separately arranged; a first spring (213) which is sleeved on the outer wall of the main shaft (220) is arranged in the chamber (210); the main shaft (220) is used to switch the first valve port (241) and the second valve port (243) between the first valve port (241) and the second valve port (243); 42), the opening or closing between the second valve port (242) and the third valve port (243); the first spring (213) is used to provide a restoring force for the movement of the main shaft (220) in the chamber (210); the main shaft (220) is located in the chamber (210) of the valve body (110) and is movable, and one end of the main shaft (220) extends out of the first end cover (120); a mushroom handle (140) is provided at the end of the main shaft (220) extending out of the first end cover (120); a limiting member is provided at the first end cover (120), and the limiting member is used to extend into the chamber (210) to limit the main shaft (220); the piston (230) is arranged at the second end cover (130), and the second end cover (130) is provided with a guide plug hole (131), and the guide plug hole (131) is used to connect to a driving source.
2. A manual reset valve according to claim 1, characterized in that: The corresponding section of the main shaft (220) is located at both ends of the chamber (210) and is provided with two first sealing rings at intervals. Under normal conditions, the passages of the first valve port (241) and the second valve port (242) are closed, and the second valve port (242) and the third valve port (243) are open.
3. A manual reset valve according to claim 1, characterized in that: A spring installation cavity (211) is formed at the first end cover (120), the axial cross-sectional area of the spring installation cavity (211) is larger than the axial cross-sectional area of the chamber (210), the first spring (213) is arranged at the spring installation cavity (211), the main shaft (220) is sleeved with a first retaining ring (221), one end of the first spring (213) abuts against the first retaining ring (221) and the other end abuts against an end wall of the spring installation cavity (211).
4. A manual reset valve according to claim 1, characterized in that: A travel groove (212) is formed at the corresponding end of the chamber (210) close to the second end cover (130); the axial cross-sectional area of the travel groove (212) is larger than the axial cross-sectional area of the chamber (210); the main shaft (220) is located in the travel groove (212) and is provided with a second retaining ring (222); the second retaining ring (222) is used to limit the travel of the main shaft (220).
5. A manual reset valve according to claim 1, characterized in that: The limiting member comprises a shaft sleeve (250) threadedly connected to the first end cover (120), the shaft sleeve (250) being axially perpendicular to the axial direction of the valve body (110), the shaft sleeve (250) being axially formed with an axial cavity (251), a pin shaft (260) being movably provided in the axial cavity (251), a second spring (270) being sleeved on the outer wall of the pin shaft (260) and being located in the axial cavity (251), the second spring (270) being used for providing a restoring force for the pin shaft (260) in the axial cavity (251), a corresponding section of the main shaft (220) being provided with a slot (223), the slot (223) being arranged circumferentially along the main shaft (220), the end of the pin shaft (260) being used for extending into the chamber (210) and being used for being engaged in the slot (223).
6. A manual reset valve according to claim 1, characterized in that: The mushroom stem (140) is threadedly connected to the end of the main shaft (220) extending out of the first end cover (120).
7. A manual reset valve according to claim 1, characterized in that: The first end cover (120) and the second end cover (130) are detachably fixed to the two ends of the valve body (110) by bolts, respectively.