CN113669497B - Straight travel transmission device for valve actuator - Google Patents
Straight travel transmission device for valve actuator Download PDFInfo
- Publication number
- CN113669497B CN113669497B CN202110804981.5A CN202110804981A CN113669497B CN 113669497 B CN113669497 B CN 113669497B CN 202110804981 A CN202110804981 A CN 202110804981A CN 113669497 B CN113669497 B CN 113669497B
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- hinge rod
- valve actuator
- valve
- screw
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a straight-travel transmission device for a valve actuator, and belongs to the technical field of valve actuators. The novel hinge mainly comprises a hinge rod, a sliding sleeve and a connecting piece, wherein a first arc surface is arranged at one end of the hinge rod, corresponding to the connecting piece, a hook body is arranged at the position, corresponding to the connecting piece, of the hinge rod, a notch is formed in the hook body, the hinge rod is collinear with a screw rod in a locking state, the hinge rod is fixed relative to the screw rod, a pin seat is arranged at one end of the connecting piece, corresponding to the hinge rod, of the connecting piece, a pin is fixedly arranged on the pin seat, a second arc surface is arranged at the end of the pin seat, the pin is used for enabling the connecting piece to be switched to the connecting state with the hinge rod, the hinge rod is collinear with the connecting piece, the notch is buckled on the hook body, and the first arc surface abuts against the second arc surface. The straight-travel transmission device for the valve actuator can simplify the disassembly and assembly process by connecting the valve actuator with the valve.
Description
Technical Field
The invention relates to the technical field of straight travel transmission devices for valve actuators, in particular to a straight travel transmission device for a valve actuator.
Background
The linear motion actuator for the valve actuator is used in conjunction with a rotary valve actuator to convert the circular motion of the rotary valve actuator into linear motion, thereby controlling the linear motion Cheng Famen (e.g., gate valve). The existing straight-travel transmission device for the valve actuator comprises a base body, a screw nut rotationally connected to the base body and a screw rod matched with the screw nut, wherein the screw rod is fixedly arranged between the valve actuator and the valve when the straight-travel transmission device for the valve actuator is used, and the screw rod is connected with a valve rod of the valve through a coupler matched bolt, so that when the valve or the valve actuator is required to be disassembled and maintained, not only the connecting structure of the base body is required to be disassembled, but also complex disassembly work is required to be carried out on the screw rod and the valve rod.
There is a need to provide a new straight travel actuator for a valve actuator that addresses the above-described problems.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the straight-travel transmission device for the valve actuator is provided, and the valve actuator is connected with the valve by using the device, so that the disassembly and assembly process can be simplified.
The technical scheme adopted for solving the technical problems is as follows: a straight travel transmission device for a valve actuator comprises a base body, a screw nut and a screw; the straight stroke transmission device for the valve actuator further comprises a hinge rod hinged to the screw rod, a sliding sleeve used for switching the hinge rod to a locking state and a connecting piece used for being installed on a valve rod of the valve, wherein a first arc surface is arranged at one end of the hinge rod corresponding to the connecting piece, a hook body is arranged on the hinge rod and located at the position of the first arc surface, a notch is formed in the hook body, the hinge rod is collinear with the screw rod in the locking state, the hinge rod is fixed relative to the screw rod, a pin seat is arranged at one end of the connecting piece corresponding to the hinge rod, a pin is fixedly installed on the pin seat, a second arc surface is arranged at the end part of the pin seat, the pin is used for enabling the connecting piece and the hinge rod to be switched to the connecting state, the hinge rod and the connecting piece are collinear, the notch is buckled on the pin, and the first arc surface and the second arc surface are propped against each other.
Further, the circle center of the first arc surface is located on the rotation pivot of the hinge rod, and the radius of the second arc surface is equal to that of the first arc surface.
Further, an upper flat wall and a lower flat wall which are parallel to each other are arranged in the opening, the upper flat wall and the lower flat wall are perpendicular to the axis of the hinging rod, and a semicircular wall is further arranged in the opening and is tangential to the upper flat wall and the lower flat wall.
Further, in the attached state, the pin is received in the hook body and abuts against the semicircular wall.
Further, the screw nut is rotatably mounted on the base, the screw is cooperatively mounted on the screw nut, and the screw is circumferentially limited on the base.
Further, at least one guide rod is fixedly arranged on the base body along the axial direction of the base body.
Further, the straight stroke transmission device for the valve actuator further comprises a shaft, the shaft is used for hinging the hinging rod on the screw rod, a sliding block is fixedly arranged at the end part of the shaft corresponding to the guiding rod, and the sliding block is slidingly connected to the guiding rod.
Furthermore, a step is arranged on the cylindrical surface of the screw rod, and a limit flange is arranged on the cylindrical surface of the hinging rod.
Further, the sliding sleeve is located between the step of the screw rod and the limit flange of the hinge rod, and the inner wall of the sliding sleeve is in sliding abutting contact with the outer wall of the screw rod, or the screw rod and the outer wall of the hinge rod.
Further, the linear motion actuator for a valve actuator further includes a resilient member for providing a resilient force to move the sliding sleeve toward the hinge rod.
The beneficial effects of the invention are as follows: when the direct-travel transmission device for the valve actuator is used, the valve actuator and the valve can be quickly connected in a transmission way by rotating the hinge rod to be connected with the connecting piece, when the valve actuator needs to be disassembled, the locking state of the hinge rod is released through the sliding sleeve, then the connecting state of the connecting piece and the hinge rod can be released through rotating the hinge rod, the transmission connection relation between the valve actuator and the valve is quickly disconnected, and then the connection relation between the seat body and the valve actuator or the connection relation between the seat body and the valve is selected according to actual requirements, so that the valve actuator and the valve are disassembled by using the device.
Drawings
The invention is further described below with reference to the drawings and examples.
In the figure: FIG. 1 is a schematic perspective view of a linear motion actuator for a valve actuator according to the present invention;
FIG. 2 is a cross-sectional view of the straight travel drive device for the valve actuator shown in FIG. 1;
FIG. 3 is an exploded view of the direct travel drive for a valve actuator of the present invention with the housing omitted;
FIG. 4 is a schematic view of the structure of a hinge rod in a straight travel transmission for a valve actuator according to the present invention;
FIG. 5 is a schematic view of a straight travel gear for a valve actuator of the present invention with one of the guide rods omitted;
fig. 6 is a schematic view of the straight travel transmission for a valve actuator of the present invention shown in fig. 5, and showing the hinge rod disconnected from the connecting rod.
100. A base; 110. a guide rod; 200. a screw nut; 300. a screw; 310. a step; 320. a first hinge lug; 400. a hinge rod; 410. the second hinge lug; 420. a first arc surface; 430. a hook body; 431. a notch; 4311. an upper flat wall; 4312. a lower flat wall; 4313. a semicircular wall; 440. a limit flange; 500. a sliding sleeve; 510. an avoidance port; 600. a connecting piece; 610. a pin base; 611. a second arc surface; 620. a pin; 700. a shaft; 710. a slide block; 800. an elastic member.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
As shown in fig. 1, the present invention provides a straight-path transmission device for a valve actuator, which comprises a base 100, a screw nut 200 rotatably mounted on the base 100, and a screw 300 cooperatively mounted on the screw nut 200, wherein the screw 300 is circumferentially limited on the base 100, the straight-path transmission device for the valve actuator is mounted between the valve actuator and a valve in use, the screw nut 200 is connected with an output end of the valve actuator, thereby driving the screw nut 200 to rotate, the screw 300 is connected with a valve rod of the valve, and the rotating screw nut 200 generates thrust by being in threaded cooperation with the screw 300, thereby driving the screw 300 to perform straight-path motion, and realizing control of the valve rod of the valve.
Further, the base 100 is approximately in a truncated cone structure, a cavity is arranged in the center of the base 100 along the axial direction of the base 100, and a bearing for matching with the screw nut 200 to rotate on the base 100 is arranged in the cavity; the seat body 100 is further provided with at least one guide rod 110 along the axial direction of the seat body 100, the guide rod 110 is used for limiting the screw 300 on the seat body 100 in the circumferential direction on one hand, and one end, away from the seat body 100, of the guide rod 110 is used for being connected with a valve body of a valve so as to firmly connect the seat body 100 to the valve.
In the present embodiment, there are two guide rods 110, and the two guide rods 110 are symmetrically disposed on the base 100 along the axis of the base 100. It is understood that the guide bars 110 may be arranged in parallel with each other, three, four, etc.
Referring to fig. 2, the screw nut 200 is mounted in a bearing in a cavity on the housing 100 such that the screw nut 200 is rotatably coupled to the housing 100.
In addition, in the present embodiment, a clutch claw structure is disposed at an end of the screw nut 200 corresponding to an output end of the valve actuator, and is used for being cooperatively connected with the output end of the valve actuator so as to achieve circumferential limitation.
To facilitate disassembly, in one embodiment, the direct travel drive for a valve actuator of the present invention further includes a hinge rod 400, a sliding sleeve 500, and a connector 600.
Referring to fig. 3, a first hinge lug 310 is provided at an end of the screw 300 remote from an end of a threaded portion of the screw 300, a first shaft hole (not shown) is provided in the first hinge lug 310 in a radial direction of the screw 300, and a step 320 is provided on a cylindrical surface of the screw 300 at a position close to the first hinge lug 310.
The hinge rod 400 is used for connecting the screw 300 and the connecting piece 600, one end of the hinge rod 400 is hinged with one end of the screw 300, more precisely, the end of the hinge rod 400 corresponding to one end of the screw 300 is provided with a second hinge lug 410, a second shaft hole (not marked in the figure) is formed in the second hinge lug 410 along the radial direction of the hinge rod 400, the second hinge lug 410 is hinged with the first hinge lug 310 on the screw 300, in a specific embodiment, the straight-path transmission device for the valve actuator further comprises a shaft 700, the shaft 700 is used for hinging the hinge rod 400 on the screw 300, and the shaft 700 simultaneously penetrates through the first shaft hole in the first hinge lug 310 and the second shaft hole in the second hinge lug 410, so that the hinge rod 4001 is hinged on the screw 300.
The end of the outer shaft 700 is fixedly provided with a sliding block 710 corresponding to the guide rod 110, the sliding block 710 is slidably connected to the guide rod 110, on one hand, the screw 300 can achieve circumferential limit relative to the base 100, and the screw 300 is limited to rotate relative to the base 100, so that the screw nut 200 can drive the screw 300 to do linear motion along the axial direction of the guide rod 110 when rotating, and on the other hand, the movement of the screw 300 can also be guided.
Referring to fig. 4 at the same time, the end of the hinge rod 400, which is far from one end of the second hinge lug 410, is provided with a first circular arc surface 420, and the center of the first circular arc surface 420 is located on the pivot of the hinge rod 400.
As shown in fig. 4, in addition, a hook 430 is disposed on the hinge rod 400 and located at a position of the first circular arc surface 420 in a protruding manner, more precisely, the hook 430 is located at a central position on the first circular arc surface 420, a gap 431 is formed on the hook 430 along a radial direction of the hinge rod 400, an upper flat wall 4311 and a lower flat wall 4312 which are parallel to each other are formed in the gap 431, the upper flat wall 4311 and the lower flat wall 4312 are perpendicular to an axial line of the hinge rod 400, a semicircular wall 4313 is further formed in the gap 431, and the semicircular wall 4313 is tangential to the upper flat wall 4311 and the lower flat wall 4312.
In addition, a limit flange 440 is provided on the cylindrical surface of the hinge rod 400.
The sliding sleeve 500 is positioned between the step 320 of the screw 300 and the limit flange 440 of the hinge rod 400, and the inner wall of the sliding sleeve 500 is slidably supported on the outer wall of the screw 300, or the screw 300 and the outer wall of the hinge rod 400, as shown in fig. 2, the sliding sleeve 500 is used to switch the hinge rod 400 to a locking state in which the hinge rod 400 is collinear with the screw 300, the sliding sleeve 500 is supported on the limit flange 440 of the hinge rod 400, and the hinge rod 400 is fixed with respect to the screw 300, more precisely, when the sliding sleeve 500 is moved and separated from the hinge rod 400, the hinge rod 400 can swing with respect to the screw 300 about the shaft 700 due to being not limited by the sliding sleeve 500, and when the hinge rod 400 is rotated to be collinear with the screw 300, the sliding sleeve 500 is simultaneously sleeved on the screw 300 and the hinge rod 400 by moving the sliding sleeve 500, so that the hinge rod 400 cannot swing with respect to the screw 300, and the hinge rod 400 is in the locking state.
And the sliding sleeve 500 is provided with a avoiding opening 510 corresponding to the shaft 700 so as to prevent the sliding sleeve 500 from being blocked by the shaft 700 when moving on the screw 300.
In order to facilitate the movement of the sliding sleeve 500, in a specific embodiment, the linear motion transmission device for a valve actuator of the present invention further includes an elastic member 800, wherein the elastic member 800 is used for providing an elastic force to enable the sliding sleeve 500 to move towards the hinge rod 400, in this embodiment, the elastic member 800 is a spiral compression spring, the elastic member 800 is sleeved on the screw 300 in a compressed state, and two ends of the elastic member 800 respectively abut against the step 320 and the sliding sleeve 500, so that when the hinge rod 400 is collinear with the screw 300, the sliding sleeve 500 can automatically slide towards the hinge rod 400 due to the elastic thrust of the elastic member 800, so that the hinge rod 400 is switched to a locking state, and when the locking of the hinge rod 400 needs to be released, the sliding sleeve 500 is forced to move along the axial direction of the screw 300 and separate from the hinge rod 400.
The connecting piece 600 is used for being installed on the valve rod of the valve, in this embodiment, the connecting piece 600 is provided with a mounting hole corresponding to one end of the valve rod, the side surface of the connecting piece 600 is provided with a threaded hole penetrating through the mounting hole, therefore, the connecting piece 600 can be sleeved on the valve rod of the valve through the mounting hole, and the connecting piece 600 is fixedly installed on the valve rod through screwing the threaded hole on the connecting piece 600 into the screw hole, and it is understood that the installation structure of the connecting piece 600 and the valve rod is not limited to this, and the installation structure should be determined according to practical situations.
The pin seat 610 is integrally provided at an end portion of the connecting member 600 corresponding to the hinge rod 400, the pin 620 is fixedly installed on the pin seat 610 along a radial direction of the connecting member 600, the end portion of the pin seat 610 is provided with the second circular arc surface 611, as shown in fig. 5, and the radius of the second circular arc surface 611 is equal to that of the first circular arc surface 420; the pin 620 is used to switch the connection member 600 and the hinge rod 400 to a connection state, in which the hinge rod 400 and the connection member 600 are collinear, the pin 620 is received in the hook 430 and abuts against the semicircular wall 4313, the first arc surface 420 of the hinge rod 400 abuts against the second arc surface 611 of the connection member 600, thereby the connection member 600 will be axially limited on the hinge rod 400, and when the screw 300 outputs a linear motion along the axial direction of the screw 300, the hinge rod 400 and the connection member 600 are driven to do a linear reciprocating motion.
The operation of a straight travel actuator for a valve actuator according to the present invention is described below with reference to the accompanying drawings:
when in use, the seat body 100 is fixedly connected with the corresponding valve actuator and the valve, the screw nut 200 is connected with the output end of the valve actuator, the connecting piece 600 is fixedly arranged on the valve rod of the valve, the sliding sleeve 500 is moved to release the locking state of the hinge rod 400, the valve rod of the valve or the output end of the valve actuator is moved to close the hinge rod 400 to the connecting piece 600 until the notch 431 on the hinge rod 400 can be buckled into the pin 620 on the connecting piece 600, the hinge rod 400 is rotated to enable the notch 431 on the hinge rod 400 to be buckled on the pin 620 until the connecting piece 600 and the hinge rod 400 enter the connecting state, at the moment, the sliding sleeve 500 can enable the hinge rod 400 to enter the locking state under the elastic force of the elastic piece 800, and because the first circular arc surface 420 of the hinge rod 400 abuts against the second circular arc surface 611 of the connecting piece 600, on one hand, the radial limiting effect is achieved on the connecting piece 600, the present invention is used for the valve actuator, on the other hand, since the valve rod of the straight travel valve (such as a gate valve) is subjected to small resistance when being extended, and the valve extension is more facilitated due to the existence of fluid medium pressure in the valve, when the valve rod is driven to extend, the pulling force of the hook body 430 on the pin 620 on the connecting piece 600 is insufficient to cause the pin 620 or the hook body 430 to be excessively loaded, so that the pin 620 or the hook body 430 is damaged, when the valve rod of the valve is retracted, the valve rod needs to resist the larger pressure in the valve, and for the present invention, when the valve rod is driven to move, the main stress is concentrated between the first circular arc surface 420 of the hinge rod 400 and the second circular arc surface 611 of the connecting piece 600, the load of the pin 620 and the hook body 430 is smaller, so that the present invention is reasonable in structural design, has reliable service life.
When the valve actuator and the valve are required to be disassembled, referring to fig. 6, only the sliding sleeve 500 is required to be moved to release the locking state of the hinge rod 400, then the hinge rod 400 is rotated to disengage the hook 430 from the pin 620 on the connector 600, and finally the connection relationship between the seat 100 and the valve actuator or the connection relationship between the seat 100 and the valve can be selectively disassembled according to the requirement.
Therefore, the straight travel transmission device for the valve actuator has at least the following beneficial effects:
when the straight travel transmission device for the valve actuator is used, the valve actuator and the valve can be quickly connected in a transmission way by rotating the hinge rod 400 to be connected with the connecting piece 600, when the valve actuator and the valve are required to be disassembled, the locking state of the hinge rod 400 is released through the sliding sleeve 500, then the connecting state of the connecting piece 600 and the hinge rod 400 can be released by rotating the hinge rod 400, the transmission connection relation between the valve actuator and the valve is quickly disconnected, and then the connection relation between the seat body 100 and the valve actuator or the connection relation between the seat body 100 and the valve is selected according to actual requirements, so that the disassembly and assembly processes of the valve actuator and the valve are simplified by using the device.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A straight stroke transmission for valve actuator, includes pedestal, screw nut and screw rod, its characterized in that: the straight-travel transmission device for the valve actuator further comprises a hinge rod hinged to the screw rod, a sliding sleeve for switching the hinge rod to a locking state and a connecting piece for being installed on a valve rod of the valve, wherein the hinge rod corresponds to the connecting piece, a first circular arc surface is arranged at one end of the connecting piece, the hinge rod is located at the position of the first circular arc surface and is provided with a hook body, a notch is formed in the hook body, the hinge rod is in the locking state, the hinge rod is in collineation with the screw rod, the hinge rod is fixed relative to the screw rod, the connecting piece corresponds to one end of the hinge rod, a pin is arranged at one end of the pin, a pin is fixedly installed on the pin, the end part of the pin is provided with a second circular arc surface, the pin is used for enabling the connecting piece to be switched to the connecting state, the hinge rod is in collineation with the connecting piece, the notch is buckled on the pin, the first circular arc surface is in contact with the second circular arc surface, a step is formed in the cylindrical surface, the step is arranged on the screw rod, the step flange is arranged on the cylindrical surface, the step flange is not in the same direction as the hinge rod, and can not move relative to the sliding sleeve, and can not rotate relative to the sliding sleeve.
2. A direct-travel actuator for a valve actuator as set forth in claim 1 wherein: the circle center of the first arc surface is positioned on the rotation pivot of the hinge rod, and the radius of the second arc surface is equal to that of the first arc surface.
3. A direct-travel actuator for a valve actuator as set forth in claim 1 wherein: the opening is internally provided with an upper flat wall and a lower flat wall which are parallel to each other, the upper flat wall and the lower flat wall are perpendicular to the axial lead of the hinging rod, and the opening is internally provided with a semicircular wall which is tangential to the upper flat wall and the lower flat wall.
4. A direct-travel actuator for a valve actuator as set forth in claim 3 wherein: in the connected state, the pin is received in the hook body and abuts against the semicircular wall.
5. A direct-travel actuator for a valve actuator as set forth in claim 1 wherein: the screw nut is rotatably mounted on the base, the screw is mounted on the screw nut in a matched manner, and the screw nut is circumferentially limited on the base.
6. A direct-travel actuator for a valve actuator as set forth in claim 5 wherein: the guide rod is fixedly arranged on the base body along the axial direction of the base body.
7. A direct-travel actuator for a valve actuator as defined in claim 6, wherein: the straight-travel transmission device for the valve actuator further comprises a shaft, the shaft is used for hinging the hinging rod on the screw rod, the end part of the shaft is fixedly provided with a sliding block corresponding to the guide rod, and the sliding block is slidably connected onto the guide rod.
8. A direct-travel actuator for a valve actuator as set forth in claim 1 wherein: the straight travel transmission for a valve actuator further includes a resilient member for providing a resilient force to move the sliding sleeve toward the hinge rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804981.5A CN113669497B (en) | 2021-07-16 | 2021-07-16 | Straight travel transmission device for valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804981.5A CN113669497B (en) | 2021-07-16 | 2021-07-16 | Straight travel transmission device for valve actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113669497A CN113669497A (en) | 2021-11-19 |
| CN113669497B true CN113669497B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110804981.5A Active CN113669497B (en) | 2021-07-16 | 2021-07-16 | Straight travel transmission device for valve actuator |
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| CN (1) | CN113669497B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382896B (en) * | 2022-01-12 | 2023-10-27 | 合肥通用机械研究院有限公司 | Spring direct load type safety valve for low-temperature medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB636601A (en) * | 1948-06-16 | 1950-05-03 | Johan Rikard Johansson | A device for detachably joining the valve stem to the valve member |
| GB1488533A (en) * | 1975-10-30 | 1977-10-12 | Parker Hannifin Corp | Pressure regulator |
| CN2842122Y (en) * | 2005-09-29 | 2006-11-29 | 宝山钢铁股份有限公司 | Connecting piece for straight travel regulating valve |
| CN102135203A (en) * | 2011-01-17 | 2011-07-27 | 卓旦春 | Connecting device for executer and valve |
| CN205806653U (en) * | 2016-07-14 | 2016-12-14 | 南通市电站阀门有限公司 | A kind of switching mode valve and Direct Travel executor's fast coupling connector |
-
2021
- 2021-07-16 CN CN202110804981.5A patent/CN113669497B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB636601A (en) * | 1948-06-16 | 1950-05-03 | Johan Rikard Johansson | A device for detachably joining the valve stem to the valve member |
| GB1488533A (en) * | 1975-10-30 | 1977-10-12 | Parker Hannifin Corp | Pressure regulator |
| CN2842122Y (en) * | 2005-09-29 | 2006-11-29 | 宝山钢铁股份有限公司 | Connecting piece for straight travel regulating valve |
| CN102135203A (en) * | 2011-01-17 | 2011-07-27 | 卓旦春 | Connecting device for executer and valve |
| CN205806653U (en) * | 2016-07-14 | 2016-12-14 | 南通市电站阀门有限公司 | A kind of switching mode valve and Direct Travel executor's fast coupling connector |
Non-Patent Citations (1)
| Title |
|---|
| 分体阀杆式程控阀故障原因探究及改进;周伟;;装备维修技术(第02期);第148-151页 * |
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| CN113669497A (en) | 2021-11-19 |
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