CN115046019A - Electric cut-off valve suitable for gas pipeline - Google Patents
Electric cut-off valve suitable for gas pipeline Download PDFInfo
- Publication number
- CN115046019A CN115046019A CN202210514069.0A CN202210514069A CN115046019A CN 115046019 A CN115046019 A CN 115046019A CN 202210514069 A CN202210514069 A CN 202210514069A CN 115046019 A CN115046019 A CN 115046019A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- gas pipeline
- rod
- piece
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to an electric cut-off valve suitable for a gas pipeline, which comprises a valve body, a valve cover, a valve rod fitting piece, a lifting mechanism and a motor driving mechanism, wherein the valve cover is arranged on the valve body; the valve rod is provided with a movement limiting part, the valve rod matching part is provided with a locking part matched with the movement limiting part, and the lifting mechanism can drive the valve rod to move vertical to the valve cover until the movement limiting part is matched with the locking part and locked, so that the valve rod can be used for removing the blockage of the valve body; the motor driving mechanism can drive the valve rod matching piece to move parallel to the valve cover until the valve rod matching piece drives the locking portion to unlock the movement limiting portion, so that the valve rod can be plugged into the valve body. The household power supply has low power supply voltage required by the work, can supply power by using a battery, not only has the functions of simplifying the structure and reducing the cost, but also avoids potential safety hazards caused by using household power.
Description
Technical Field
The invention belongs to the technical field related to gas flow cut-off, and particularly relates to an electric cut-off valve suitable for a gas pipeline.
Background
The gas trip valve is installed on the gas pipeline, usually with the cooperation of gas alarm, after the gas trip valve received the signal that detects the gas in the gas alarm and leak, the passageway in this gas trip valve is started and closed to the gas trip valve, and then realizes cutting off to the gas pipeline gas passageway that corresponds.
At present, current gas trip valve is the solenoid valve usually, and wherein, the required supply voltage of solenoid valve during operation is higher, is 12V usually, and this makes on the solenoid valve is applied to the gas pipeline, need be connected with domestic power consumption through voltage converter, and not only the structure is complicated like this, has increased the required equipment cost of gas pipeline cut-off control, moreover, provides the power for the solenoid valve with domestic power consumption, has certain potential safety hazard.
Disclosure of Invention
In view of the above, it is necessary to provide an electric shutoff valve suitable for use in a gas pipeline to solve the above problems.
An electric cut-off valve suitable for a gas pipeline comprises a valve body, a valve cover, a valve rod matching piece, a lifting mechanism and a motor driving mechanism, wherein the valve cover is arranged on the valve body, and the valve rod penetrates through the valve cover and extends into the valve body so as to control the valve body to be opened and closed;
the valve rod is provided with a motion limiting part, the valve rod matching part is provided with a locking part matched with the motion limiting part, and the lifting mechanism can drive the valve rod to move vertical to the valve cover until the motion limiting part is matched with the locking part and locked, so that the valve rod can be used for removing the blockage of the valve body; the motor driving mechanism can drive the valve rod matching piece to move parallel to the valve cover until the valve rod matching piece drives the locking part to unlock the movement limiting part, so that the valve rod can block the valve body.
In this application, through the above-mentioned valve rod, the valve rod fitting piece, carry and draw mechanism and motor drive mechanism's structure setting, utilize the cooperation between the portion of locking of motion spacing portion and valve rod fitting piece on the valve rod, make this electronic trip valve can realize the control of opening the valve body with carrying the pull mechanism, realize the control of closing the valve body with motor drive mechanism, so that this electronic trip valve can be applicable to the application on the gas pipeline, and utilize motor drive mechanism's structural feature, make the required power voltage of this electronic trip valve work low, can supply power with the battery, not only play the simplified structure, reduce cost's effect, and avoided the potential safety hazard because of using the household power to exist.
In one embodiment, the motion limiting part is a limiting hole groove formed on the valve rod, and the locking part is a convex column formed on the valve rod matching piece.
It can be understood that the movement limiting part is arranged as a limiting hole groove, and the locking part is arranged as a convex column, so that the structural arrangement of the movement limiting part and the locking part is realized, and the function of simplifying the structure is achieved.
In one embodiment, a first elastic piece is sleeved on the part of the valve rod, which extends into the valve body, and the first elastic piece can push the valve rod so that the valve rod blocks the valve body.
It can be understood that, through the structural arrangement of the first elastic piece, when the electric cut-off valve works, by utilizing the structural characteristics of the first elastic piece, when the locking part on the valve rod fitting piece releases the locking of the motion limiting part on the valve rod, the first elastic piece can automatically drive the valve rod to block the valve body.
In one embodiment, the valve rod fitting piece is provided with a second elastic piece, and the second elastic piece can push against the valve rod fitting piece so as to drive a locking part on the valve rod fitting piece to be matched with a motion limiting part on the valve rod.
It can be understood that, through the structural arrangement of the second elastic element, when the electric cut-off valve works, the second elastic element can drive the locking part on the valve rod fitting piece to be matched with the limiting fitting part on the valve rod by utilizing the structural characteristics of the second elastic element when the motor driving mechanism is not started.
In one embodiment, the motor driving mechanism includes a motor, a reduction frame, a gear transmission assembly and a cam, the gear transmission assembly is mounted on the reduction frame, wherein an input end of the gear transmission assembly is connected with a rotating shaft portion of the motor, and an output end of the gear transmission assembly is connected with the cam, so that the motor can drive the cam to rotate relative to the reduction frame through the gear transmission assembly.
It can be understood that the structural arrangement of the motor driving mechanism is realized by the structural arrangement of the motor, the reduction frame, the gear transmission assembly and the cam.
In one embodiment, the valve rod matching element is arranged in a frame structure, the cam is arranged inside the valve rod matching element, and the cam can drive the valve rod matching element to move relative to the reduction gear frame, so that the locking part unlocks the motion limiting part.
It can be understood that, through the above structural arrangement, the structural arrangement for matching between the cam and the valve rod matching member is specifically realized, so that the cam can drive the valve rod matching member to move while rotating, that is, the motor driving mechanism can drive the valve rod matching member to move during operation.
In one embodiment, the valve rod matching piece is provided with a limiting lug, and the rotation of the cam is limited through the abutting fit between the limiting lug and the cam.
It can be understood that the structure arrangement of the limiting convex block is adopted, so that the rotation of the cam is limited, and the use requirement of the valve rod matching piece on the drive control of the valve rod matching piece is met when the motor drive mechanism works.
In one embodiment, the reduction gear rack is provided with a sliding guide part, and the valve rod matching piece is slidably installed on the reduction gear rack through the sliding guide part.
It can be understood that, through the structural arrangement of the sliding guide part, the movement of the valve rod fitting piece on the reduction bracket is guided and limited, so that the valve rod fitting piece can be ensured to move and simultaneously drive the locking part to be matched with the movement limiting part on the valve rod.
In one embodiment, a rotation limiting part is arranged on the valve rod, a limiting matching part matched with the rotation limiting part is arranged on the reduction frame, and the rotation of the valve rod relative to the reduction frame is limited through the matching between the rotation limiting part and the limiting matching part.
It can be understood that through the structural arrangement of the rotary limiting part and the limiting matching part, the valve rod can be prevented from rotating when the valve rod moves perpendicular to the valve cover, and the use requirement of matching between the moving limiting part and the locking part on the valve rod matching part is met.
In one embodiment, the lifting mechanism comprises a pull rod and a lifting button, the lifting button is mounted on one side of the pull rod, and the other side of the pull rod is connected with the valve rod, so that the lifting button can drive the valve rod to move perpendicular to the valve cover through the pull rod.
It can be understood that, through the structural arrangement of the pull rod and the lifting button, the structural arrangement of the lifting mechanism is realized, and the function of simplifying the structure is achieved.
Drawings
Fig. 1 is a cross-sectional view of an electric shut-off valve suitable for use in a gas pipeline according to an embodiment of the present application.
Fig. 2 is an enlarged view of a portion P in fig. 1.
Fig. 3 is a schematic structural diagram of the valve rod, the valve rod fitting piece, the lifting mechanism and the motor driving mechanism during assembly and connection.
Fig. 4 is an exploded view of fig. 3.
100, an electric cut-off valve; 10. a valve body; 11. an air inlet; 12. an air outlet; 13. a passage port; 20. a valve cover; 30. a valve stem; 301. a valve seal holder; 302. flat gasket valve sealing; 303. a fixing sheet; 304. a bellows; 305. a stationary ring; 31. a movement limiting part; 311. a limiting hole groove; 32. a rotation limiting part; 321. blocking strips; 40. a valve stem mating member; 41. a locking portion; 411. a convex column; 42. a limiting bump; 43. connecting columns; 50. a lifting mechanism; 501. a seal ring; 51. a pull rod; 52. lifting the button; 60. a motor drive mechanism; 61. a motor; 611. a rotating shaft part; 62. a deceleration shelf; 621. a slide guide part; 622. a limit matching part; 6221. a channel; 623. a limiting plate; 63. a gear drive assembly; 64. a cam; 70. a mechanism box body; 71. a step surface; 101. a first elastic member; 102. a second elastic member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, an embodiment of the present application provides an electric cut-off valve 100 suitable for a gas pipeline, which includes a valve body 10, a valve cover 20, a valve stem 30, a valve stem fitting 40, a pulling mechanism 50, and a motor driving mechanism 60.
The valve body 10 is provided with an air inlet 11, an air outlet 12 and a passage port 13, and when the electric cut-off valve 100 is installed in a gas pipeline (not shown), the air inlet 11 and the air outlet 12 of the valve body 10 are respectively connected with the gas pipeline, so that gas introduced from the air inlet 11 can flow to the air outlet 12 through the passage port 13, and thus, when the electric cut-off valve 100 works, the opening and closing control of the electric cut-off valve 100 can be realized by specifically controlling the opening or the disconnection of the passage port 13.
The valve cap 20 is installed on the valve body 10, and the valve rod 30 passes through the valve cap 20 and extends into the valve body 10 to control the opening and closing of the valve body 10. That is, the portion of the valve stem 30 that protrudes into the valve body 10 can selectively control the opening and closing of the passage port 13 in the valve body 10, so as to achieve the opening and closing control of the electric cutoff valve 100.
In an embodiment, a flat gasket valve seal 302 is installed on one end of the valve rod 30 extending into the valve body 10 through a valve seal support 301, and the valve rod 30 can drive the flat gasket valve seal 302 to press against the passage opening 13 of the valve body 10, so as to seal the passage opening 13, i.e. to achieve the effect of controlling the electric shutoff valve 100 to cut off the gas passage. It should be noted that the flat gasket valve seal 302 may be specifically configured as a rubber gasket and is fixed to the valve seal bracket 301 by pressing the fixing plate 303.
It should be noted that, the portion of the valve rod 30 extending into the valve body 10 is connected with a bellows 304, one end of the bellows 304 far from the valve rod 30 is pressed and fixed on the valve body 10 through a fixing ring 305, so that the assembly of the valve rod 30 on the valve body 10 is sealed by the bellows 304, and by using the structural characteristics of the bellows 304, the gas introduced into the valve body 10 is prevented from leaking outwards from the assembly gap between the valve rod 30 and the valve cover 20, and meanwhile, the use requirement of the valve rod 30 reciprocating relative to the valve body 10 is met.
In the application, the valve rod 30 is provided with the movement limiting part 31, the valve rod fitting piece 40 is provided with the locking part 41 matched with the movement limiting part 31, and the lifting mechanism 50 can drive the valve rod 30 to move perpendicular to the valve cover 20 until the movement limiting part 31 is matched with the locking part 41 and locked, so that the valve rod 30 is free from blocking the valve body 10; the motor driving mechanism 60 can drive the valve rod fitting piece 40 to move parallel to the valve cover 20 until the valve rod fitting piece 40 drives the locking part 41 to unlock the movement limiting part 31, so that the valve rod 30 can block the valve body 10. That is, when the electric shut-off valve is operated, the pull-up mechanism 50 can be manually opened, and the movement restricting portion 31 of the valve rod 30 is locked by the locking portion 41 of the valve rod fitting 40, so that the electric shut-off valve can be always kept in an open state, and then the electric shut-off valve is closed by the motor drive mechanism 60 according to the use requirement, that is, the electric shut-off valve has the function of shutting off the gas passage.
It can be understood that the electric cut-off valve 100 of this application during operation realizes the drive of closing the valve with motor drive mechanism 60 for this electric cut-off valve 100 is applied to on the gas pipeline, realizes electric control, can make the required supply voltage low of this electric cut-off valve during operation like this, can supply power with the battery, not only plays simplified structure, reduce cost's effect, has avoided the potential safety hazard because of using the household power consumption to exist in addition.
In an embodiment, the movement limiting portion 31 is configured as a limiting hole slot 311 opened on the valve rod 30, and the locking portion 41 is configured as a convex column 411 arranged on the valve rod fitting member 40, so as to implement the structural arrangement of the movement limiting portion 31 and the locking portion 41, and have the effect of simplifying the structure.
Wherein, the part that the valve rod 30 stretches into in the valve body 10 is equipped with first elastic component 101 in the cover, and first elastic component 101 can push away valve rod 30 to make valve rod 30 shutoff valve body 10. When the locking part 41 on the valve rod fitting 40 releases the locking of the movement limiting part 31 on the valve rod 30 when the electric shutoff valve 100 is operated, the first elastic piece 101 can automatically drive the valve rod 30 to close the passage opening 13 of the valve body 10. It should be noted that, the first elastic element 101 may be specifically configured as a spring, so that the pulling mechanism 50 can compress the first elastic element 101 while pulling the valve rod 30, so as to elastically deform the first elastic element 101, so that when the locking portion 41 on the valve rod fitting 40 releases the locking of the valve rod 30, that is, releases the limit on the compression of the first elastic element 101, at this time, the first elastic element 101 can drive the valve rod 30, so that the valve rod 30 blocks the passage opening 13 of the valve body 10, that is, blocks the passage opening 13 on the valve body 10.
The second elastic element 102 is disposed on the valve rod fitting element 40, and when the motor driving mechanism 60 is not started, the second elastic element 102 can push against the valve rod fitting element 40 to drive the locking portion 41 on the valve rod fitting element 40 to be matched with the motion limiting portion on the valve rod 30, so that when the electric cut-off valve 100 works, the second elastic element 102 can drive the locking portion 41 on the valve rod fitting element 40 to be matched with the motion limiting portion 31 on the valve rod 30. It should be noted that, the second elastic element 102 is also specifically configured as a spring, and the second elastic element 102 is installed on the valve rod matching element 40 in a pre-compression manner, so that once the valve rod 30 drives the motion limiting portion 31 to move to a position capable of matching with the locking portion 41, the second elastic element 102 can push the valve rod matching element 40 to move towards the direction of the valve rod 30, so that the locking portion 41 matches with the motion limiting portion 31 and is locked.
In an embodiment, the motor driving mechanism 60 includes a motor 61, a speed reducing frame 62, a gear transmission assembly 63 and a cam 64, wherein the gear transmission assembly 63 is mounted on the speed reducing frame 62, an input end of the gear transmission assembly 63 is connected to a rotating shaft portion 611 of the motor 61, and an output end of the gear transmission assembly 63 is connected to the cam 64, so that the motor 61 can drive the cam 64 to perform a rotating motion relative to the speed reducing frame 62 through the gear transmission assembly 63, thereby implementing the structural arrangement of the motor driving mechanism 60. It should be noted that the gear assembly 63 may specifically adopt a conventional gear structure, and will not be described herein.
In an embodiment, the valve rod matching element 40 is configured as a frame structure, the cam 64 is disposed inside the valve rod matching element 40, and the cam 64 can drive the valve rod matching element 40 to move relative to the reduction bracket 62, so that the locking portion 41 releases the locking of the movement limiting portion 31, thereby implementing the structural configuration of matching between the cam 64 and the valve rod matching element 40, so that the cam 64 can drive the valve rod matching element 40 to move while rotating, that is, drive the valve rod matching element 40 to move when the motor driving mechanism 60 operates.
Specifically, the portion of the cam 64 disposed in the valve-stem mating element 40 is configured to be triangle-like, and when the cam 64 rotates in the valve-stem mating element 40, the cam 64 can push against the valve-stem mating element 40 to drive the valve-stem mating element 40 to move on the reduction bracket 62.
Wherein, be equipped with spacing lug 42 on the valve rod fitting piece 40, through the butt cooperation between spacing lug 42 and the cam 64 to carry out spacingly with the rotation of cam 64 on reduction gear 62, realize the control to the displacement of valve rod fitting piece 40 on reduction gear 62 promptly, in order to satisfy this motor drive 60 during operation, realize the user demand to valve rod fitting piece 40 drive control through cam 64.
In an embodiment, the deceleration frame 62 is provided with a sliding guide portion 621, and the valve rod matching element 40 is slidably mounted on the deceleration frame 62 through the sliding guide portion 621 to guide and limit the movement of the valve rod matching element 40 on the deceleration frame 62, so as to ensure that the valve rod matching element 40 can drive the locking portion 41 to be matched with the movement limiting portion 31 on the valve rod 30 while moving. It should be noted that the sliding guide 621 may be specifically configured as a limit guide frame disposed at two opposite sides of the valve stem fitting member 40, which will not be described herein.
In addition, it should be noted that a limiting plate 623 is arranged on the reduction bracket 62, a connecting post 43 is arranged on the valve rod fitting piece 40, and the second elastic element 102 is sleeved on the connecting post 43 of the valve rod fitting piece 40, wherein one end of the second elastic element 102 abuts against the valve rod fitting piece 40, the other end of the second elastic element abuts against the limiting plate 623, and the connecting post 43 can pass through the limiting plate 623 and is in sliding fit with the limiting plate 623, so as to meet the use requirement that the second elastic element 102 is installed on the valve rod fitting piece 40 in a pre-compression manner.
In addition, the electric shut valve 100 of the present invention further includes a mechanism case 70, and the pulling mechanism 50 and the motor driving mechanism 60 are both mounted on the mechanism case 70, thereby realizing the assembly connection of the pulling mechanism 50 and the motor driving mechanism 60 on the electric shut valve 100. Specifically, the mechanism case 70 is fixedly mounted on the bonnet 20.
In an embodiment, the rotation limiting portion 32 is disposed on the valve rod 30, the limiting engaging portion 622 matched with the rotation limiting portion 32 is disposed on the reduction rack 62, and the rotation of the valve rod 30 relative to the reduction rack 62 is limited by the engagement between the rotation limiting portion 32 and the limiting engaging portion 622, so as to meet the use requirement of the engagement between the movement limiting portion 31 on the valve rod 30 and the locking portion 41 on the valve rod engaging element 40.
Specifically, the rotation limiting portion 32 on the valve rod 30 is provided as a barrier 321 fixedly connected to the valve rod 30, and the limiting matching portion 622 is provided as a channel 6221 opened on the speed reducing frame 62 to match the barrier 321, so that the structure setting of the rotation limiting portion 32 and the limiting matching portion 622 is specifically realized, and the structure simplifying effect is achieved.
In an embodiment, the lifting mechanism 50 includes a pull rod 51 and a lifting button 52, the lifting button 52 is installed on one side of the pull rod 51, and the other side of the pull rod 51 is connected with the valve rod 30, so that the lifting button 52 can drive the valve rod 30 to move perpendicular to the valve cover 20 through the pull rod 51, thereby realizing the structural arrangement of the lifting mechanism 50 and simplifying the structure.
The part of the pull rod 51 extending out of the mechanism box 70 is provided, and the part of the pull rod 51 disposed in the mechanism box 70 is sleeved with a sealing ring 501 for sealing the pull rod 51 and the mechanism box 70, and in order to prevent the pull rod 51 from separating from the mechanism box 70, a step surface 71 may be specifically provided on the mechanism box 70 to limit the pull rod 51 from separating from the mechanism box 70, and the lifting button 52 is specifically installed on the part of the pull rod 51 extending out of the mechanism box 70. It should be noted that, the lifting knob 52 and the pull rod 51, and the pull rod 51 and the valve rod 30 may be connected in a concave-convex matching manner, so that when a user lifts the lifting knob 52, the pull rod 51 may drive the valve rod 30 to move upwards.
In summary, when the electric shut-off valve 100 of the present application is in operation, the pulling mechanism 50 can be used to control the opening of the valve body 10, and the motor driving mechanism 60 can be used to control the closing of the valve body 10, so that the electric shut-off valve 100 can be applied to a gas pipeline, and the structural characteristics of the motor driving mechanism 60 are utilized, so that the power supply voltage required by the operation of the electric shut-off valve 100 is low, and the electric shut-off valve can be supplied with power by a battery, thereby not only simplifying the structure and reducing the cost, but also avoiding the potential safety hazard caused by the use of household electricity.
The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The electric cut-off valve suitable for the gas pipeline is characterized by comprising a valve body (10), a valve cover (20), a valve rod (30), a valve rod fitting piece (40), a lifting mechanism (50) and a motor driving mechanism (60), wherein the valve cover (20) is installed on the valve body (10), and the valve rod (30) penetrates through the valve cover (20) and extends into the valve body (10) to control the valve body (10) to be opened and closed;
the valve rod (30) is provided with a motion limiting part (31), the valve rod matching piece (40) is provided with a locking part (41) matched with the motion limiting part (31), and the lifting mechanism (50) can drive the valve rod (30) to move vertical to the valve cover (20) until the motion limiting part (31) is matched and locked with the locking part (41) so that the valve rod (30) can release the blocking of the valve body (10); the motor driving mechanism (60) can drive the valve rod matching piece (40) to move parallel to the valve cover (20) until the valve rod matching piece (40) drives the locking part (41) to unlock the movement limiting part (31), so that the valve rod (30) can block the valve body (10).
2. The electric cutoff valve suitable for the gas pipeline according to claim 1, wherein the motion limiting part (31) is provided as a limiting hole groove (311) formed on the valve rod (30), and the locking part (41) is provided as a convex column (411) formed on the valve rod fitting part (40).
3. The electric shut-off valve suitable for being used on a gas pipeline is characterized in that a part of the valve rod (30) extending into the valve body (10) is sleeved with a first elastic piece (101), and the first elastic piece (101) can push the valve rod (30) to enable the valve rod (30) to block the valve body (10).
4. The electric shut-off valve suitable for being used on a gas pipeline is characterized in that a second elastic piece (102) is arranged on the valve rod fitting piece (40), and the second elastic piece (102) can push the valve rod fitting piece (40) so as to drive a locking part (41) on the valve rod fitting piece (40) to be matched with a motion limiting part (31) on the valve rod (30).
5. The electric shut-off valve suitable for being used on a gas pipeline is characterized in that the motor driving mechanism (60) comprises a motor (61), a speed reducing frame (62), a gear transmission assembly (63) and a cam (64), wherein the gear transmission assembly (63) is installed on the speed reducing frame (62), the input end of the gear transmission assembly (63) is connected with the rotating shaft part (611) of the motor (61), and the output end of the gear transmission assembly is connected with the cam (64), so that the motor (61) can drive the cam (64) to rotate relative to the speed reducing frame (62) through the gear transmission assembly (63).
6. The electric shut-off valve suitable for being used on a gas pipeline is characterized in that the valve rod fitting piece (40) is arranged in a frame structure, the cam (64) is arranged inside the valve rod fitting piece (40), and the cam (64) can drive the valve rod fitting piece (40) to move relative to the reduction frame (62) so that the locking part (41) releases the locking of the motion limiting part (31).
7. The electric shut-off valve suitable for being used on a gas pipeline is characterized in that the valve rod fitting piece (40) is provided with a limiting lug (42), and the rotation of the cam (64) is limited through the abutting fit between the limiting lug (42) and the cam (64).
8. The electric shut-off valve suitable for the gas pipeline is characterized in that the speed reducing frame (62) is provided with a sliding guide part (621), and the valve rod matching piece (40) is slidably mounted on the speed reducing frame (62) through the sliding guide part (621).
9. The electric shut-off valve suitable for being used on a gas pipeline according to claim 5, wherein a rotary limiting part (32) is arranged on the valve rod (30), a limiting matching part (622) matched with the rotary limiting part (32) is arranged on the speed reducing frame (62), and the rotation of the valve rod (30) relative to the speed reducing frame (62) is limited through the matching between the rotary limiting part (32) and the limiting matching part (622).
10. The power cut-off valve suitable for the gas pipeline is characterized in that the pulling mechanism (50) comprises a pull rod (51) and a pulling button (52), the pulling button (52) is installed on one side of the pull rod (51), the other side of the pull rod (51) is connected with the valve rod (30), so that the pulling button (52) can drive the valve rod (30) to move vertically to the valve cover (20) through the pull rod (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210514069.0A CN115046019A (en) | 2022-05-12 | 2022-05-12 | Electric cut-off valve suitable for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210514069.0A CN115046019A (en) | 2022-05-12 | 2022-05-12 | Electric cut-off valve suitable for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115046019A true CN115046019A (en) | 2022-09-13 |
Family
ID=83158003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210514069.0A Pending CN115046019A (en) | 2022-05-12 | 2022-05-12 | Electric cut-off valve suitable for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115046019A (en) |
-
2022
- 2022-05-12 CN CN202210514069.0A patent/CN115046019A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023060982A1 (en) | Automatic door opening and closing mechanism, and refrigerator | |
| CN111120671A (en) | Gate valve | |
| CN109519564A (en) | Motor-driven valve | |
| CN111442110A (en) | Ball valve | |
| CN107654152B (en) | Novel manually-operated electric door/cover opening and closing actuator and working method thereof | |
| CN103985619B (en) | CPS (Control and Protective Switching Device) | |
| CN214305122U (en) | Mechanical bidirectional clutch rotary actuator with torque induction protection | |
| CN111120713A (en) | Butterfly valve | |
| CN201884777U (en) | Nuclear manual rotary drum vacuum valve | |
| CN115046019A (en) | Electric cut-off valve suitable for gas pipeline | |
| CN112503151B (en) | Mechanical bidirectional clutch manual-automatic rotary actuator with torque induction protection function | |
| CN212297608U (en) | Runner opening and closing control device | |
| CN104514902A (en) | Gas valve | |
| CN203743570U (en) | Motor gas switching valve | |
| KR100828419B1 (en) | Car oil-cover locking apparatus | |
| CN114526341B (en) | Double-sealing auxiliary single eccentric butterfly valve | |
| CN217927195U (en) | Gas stop valve | |
| US6084370A (en) | Switching device for the manual drive of an electromotive actuator | |
| CN110345273B (en) | Rotary deflation and electric control switch integrated controller | |
| CN212360962U (en) | Canned type electric actuator with manual emergency switch | |
| CN203979547U (en) | A kind of magnetic control safety valve | |
| CN203500607U (en) | Gas valve | |
| KR100899974B1 (en) | Car oil-cover locking assembly | |
| CN201636433U (en) | Nuclear electric rotating-drum vacuum valve | |
| CN215763579U (en) | External manual emergency switch and executor thereof |
Legal Events
| 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 |