CN113374913A - Valve control device and control system with same - Google Patents

Valve control device and control system with same Download PDF

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Publication number
CN113374913A
CN113374913A CN202010163413.7A CN202010163413A CN113374913A CN 113374913 A CN113374913 A CN 113374913A CN 202010163413 A CN202010163413 A CN 202010163413A CN 113374913 A CN113374913 A CN 113374913A
Authority
CN
China
Prior art keywords
driving
valve
mounting block
mounting
valve control
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
Application number
CN202010163413.7A
Other languages
Chinese (zh)
Inventor
郑丰
李昂
陈浩
谢志锋
陈伯扦
潘克玉
游专
黄宇杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Bozhilin Robot Co Ltd
Original Assignee
Guangdong Bozhilin Robot Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Bozhilin Robot Co Ltd filed Critical Guangdong Bozhilin Robot Co Ltd
Priority to CN202010163413.7A priority Critical patent/CN113374913A/en
Publication of CN113374913A publication Critical patent/CN113374913A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047Actuating 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/20Implements for finishing work on buildings for laying flooring
    • E04F21/24Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/53Mechanical actuating means with toothed gearing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Valve Housings (AREA)

Abstract

The invention provides a valve control device and a control system with the same, wherein the valve control device comprises: the supporting body is provided with an installation space; the driving assembly is at least partially arranged in the installation space and comprises a driving piece and a plurality of driving parts, and the driving parts are all arranged on the driving piece and connected with the driving piece so as to drive the driving parts to rotate simultaneously through the driving piece; wherein, a plurality of drive division are connected with a plurality of valves one-to-one to open or close through a plurality of drive division simultaneous control a plurality of valves, occupy great installation space's problem with the control valve of the epoxy floor lacquer among the solution prior art.

Description

Valve control device and control system with same
Technical Field
The invention relates to the field of valve switch control, in particular to a valve control device and a control system with the same.
Background
At present, when coating floor paint, the make-and-break of fluid in the control pipeline mostly adopts power-driven valves such as electric ball valve or pneumatic ball valve, its structure is single power driving piece control single ball valve, because floor paint has coagulability and blocks up the pipeline easily, and floor paint is through the priming paint, form after the three processes of well lacquer and finish paint that contain quartz sand, coating robot also need often change the lacquer of these three kinds of different materials and carry out the operation, consequently, in order to avoid the lacquer of remaining of last process to pollute the lacquer of current technology, when changing different lacquers at every turn, all need clean feeding system's container and pipeline, because floor paint adhesion is extremely strong, and be insoluble in water, need adopt special solvent xylene or Tianna water to carry out circulation and erode pipeline and container and reach abluent purpose.
However, because single power driving piece can only control single ball valve, and the feeding system of epoxy floor paint needs many pipeline supplies, at this moment needs a plurality of electronic ball valves or pneumatic ball valve to control every pipeline break-make simultaneously, and the occupation space that sets up like this is big, and each ball valve is opened or is closed and appear the time difference easily, leads to each pipeline supply inconsistent, reduces the coating quality of floor paint.
Disclosure of Invention
The invention mainly aims to provide a valve control device and a control system with the same, and aims to solve the problem that a control valve of epoxy floor paint in the prior art occupies a large installation space.
In order to achieve the above object, according to one aspect of the present invention, there is provided a valve control apparatus comprising: the supporting body is provided with an installation space; the driving assembly is at least partially arranged in the installation space and comprises a driving piece and a plurality of driving parts, and the driving parts are all arranged on the driving piece and connected with the driving piece so as to drive the driving parts to rotate simultaneously through the driving piece; the plurality of driving parts are connected with the plurality of valves in a one-to-one correspondence manner so as to control the opening or closing of the plurality of valves through the plurality of driving parts simultaneously.
Further, the valve control apparatus further includes: the mounting assembly is arranged on the support body; the installation component is a plurality of, and a plurality of installation components are connected with a plurality of valves one-to-one, and the drive division is connected with the installation component to drive the valve through the installation component and rotate.
Further, the mounting assembly includes: a first mounting block, at least a portion of which is disposed on the support body; the second mounting block is at least partially arranged on the support body and is arranged opposite to the first mounting block so as to form a mounting groove for accommodating the valve between the first mounting block and the second mounting block; and the first mounting block and the second mounting block are connected through the connecting block, and at least part of the connecting block is connected with one of the plurality of driving parts.
Further, the first mounting block and/or the second mounting block are/is provided with mounting holes, and the body of the valve is provided with through holes, so that the valve is connected with the first mounting block and/or the second mounting block by sequentially passing at least part of the connecting piece through the mounting holes and the through holes.
Further, the driving member is a driving shaft, and the driving assembly further includes: the driving motor is in driving connection with the driving shaft so as to drive the driving shaft to rotate, and the plurality of driving parts are arranged on the shaft body of the driving shaft at intervals along the extending direction of the driving shaft.
Further, the driving part includes: a first gear, at least part of the first gear being mounted on the drive member; and the second gear is meshed with the first gear and is connected with the mounting assembly through a connecting shaft.
Further, the support body is provided with a through hole, and at least part of the connecting shaft penetrates through the through hole and then is connected with the mounting assembly.
Further, the valve comprises: the valve body is internally provided with a channel communicated with a pipeline; and the valve core is at least partially arranged in the channel and is provided with an operation part, so that the valve core is connected with the driving part through the operation part.
Furthermore, the support body is provided with a bearing part, the bearing part is provided with a clamping groove, and at least part of the valve body is clamped in the clamping groove.
According to another aspect of the present invention, there is provided a control system for controlling the flow of material through or out of a pipeline, the control system comprising a valve control device, at least part of the valve control device being connected to the pipeline, the valve control device being as described above.
According to the technical scheme, the valve control device comprises a support body and a driving assembly, wherein an installation space is formed in the support body, at least part of the driving assembly is installed in the installation space, the driving assembly comprises a driving piece and a plurality of driving parts, and the driving parts are installed on the driving piece and connected with the driving piece so as to drive the driving parts to rotate simultaneously through the driving piece; the plurality of driving parts are connected with the plurality of valves in a one-to-one correspondence manner so as to control the opening or closing of the plurality of valves through the plurality of driving parts simultaneously. Set up like this and can control a plurality of valves and open or close simultaneously, can guarantee the uniformity to a plurality of valve controls, simplified control circuit and gas circuit, reduced the installation space to the controlling means of a plurality of valves, solved among the prior art when laying epoxy terrace lacquer, the control valve of terrace lacquer occupies great installation space's problem.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic structural view of an embodiment of a valve control apparatus according to the present invention;
FIG. 2 illustrates a first state diagram of a valve control apparatus according to the present invention;
FIG. 3 shows a side view of the valve control apparatus according to FIG. 2;
FIG. 4 shows a top view of the valve control apparatus according to FIG. 2;
FIG. 5 shows a cross-sectional view of the valve control apparatus according to FIG. 2;
fig. 6 shows an enlarged view of part a according to fig. 5;
fig. 7 is a schematic view showing a structure of a valve of the valve control apparatus according to the present invention;
fig. 8 shows a schematic structural diagram of an embodiment of the control system according to the invention.
Wherein the figures include the following reference numerals:
1. a support body; 10. an installation space; 11. a receiving part; 110. a card slot;
2. a drive assembly; 20. a drive member; 21. a drive section; 22. a drive motor; 210. a first gear; 211. a second gear; 23. a connecting shaft;
3. a valve; 30. a valve body; 31. a valve core; 310. an operation section; 4. mounting the component; 40. a first mounting block; 41. a second mounting block; 42. connecting blocks;
5. a pressure barrel; 6. a raw material barrel; 7. material preparation; 8. a hose; 9. a valve control device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The present invention provides a valve control device, please refer to fig. 1 to 8, including: the supporting device comprises a supporting body 1, wherein an installation space 10 is arranged on the supporting body 1; the driving assembly 2, at least part of the driving assembly 2 is installed in the installation space 10, the driving assembly 2 includes a driving member 20 and a plurality of driving portions 21, and each of the plurality of driving portions 21 is installed on the driving member 20 and connected with the driving member 20 so as to drive the plurality of driving portions 21 to rotate simultaneously through the driving member 20; the plurality of driving portions 21 are connected to the plurality of valves 3 in a one-to-one correspondence manner, so that the plurality of valves 3 are simultaneously controlled to be opened or closed by the plurality of driving portions 21.
The valve control device comprises a support body 1 and a driving assembly 2, wherein an installation space 10 is arranged on the support body 1, at least part of the driving assembly 2 is installed in the installation space 10, the driving assembly 2 comprises a driving part 20 and a plurality of driving parts 21, and the plurality of driving parts 21 are all installed on the driving part 20 and connected with the driving part 20 so as to drive the plurality of driving parts 21 to rotate simultaneously through the driving part 20; the plurality of driving portions 21 are connected to the plurality of valves 3 in a one-to-one correspondence manner, so that the plurality of valves 3 are simultaneously controlled to be opened or closed by the plurality of driving portions 21. Set up like this and can control a plurality of valves 3 and open or close simultaneously, can guarantee the unity to the control of a plurality of valves 3, simplified control circuit and gas circuit, reduced the installation space to the controlling means of a plurality of valves, solved among the prior art when laying epoxy terrace paint, the control valve of terrace paint occupies great installation space's problem.
In a specific implementation, the valve control apparatus further comprises: the mounting component 4 is arranged on the support body 1; the installation component 4 is a plurality of, and a plurality of installation components 4 are connected with a plurality of valves 3 one-to-one, and drive division 21 is connected with installation component 4 to drive valve 3 through installation component 4 and rotate. This arrangement enables the valve 3 to be mounted by a plurality of mounting assemblies, preferably at least part of the valve 3 being inserted within the mounting assembly 4, which facilitates mounting and dismounting of the valve 3.
For more convenient installation or removal of the valve 3, saving installation time of the valve 3, the installation assembly 4 comprises: a first mounting block 40, at least part of the first mounting block 40 being arranged on the support body 1; a second mounting block 41, at least part of the second mounting block 41 being arranged on the support body 1, the second mounting block 41 being arranged opposite the first mounting block 40 to form a mounting groove between the first mounting block 40 and the second mounting block 41 for accommodating the valve 3; the connection block 42, the first mounting block 40 and the second mounting block 41 are connected by the connection block 42, and at least a portion of the connection block 42 is connected to one of the plurality of driving parts 21.
Specifically, the first mounting block 40 and/or the second mounting block 41 are provided with mounting holes, and the body of the valve 3 is provided with through holes, so that the valve 3 is connected with the first mounting block 40 and/or the second mounting block 41 by passing at least part of the connecting piece through the mounting holes and the through holes in sequence. Preferably, the mounting and/or through holes are threaded holes and the connecting members are attachment screws to facilitate the fixation of the valve 3.
In the embodiment provided by the present invention, the driving member 20 is a driving shaft, and the driving assembly 2 further includes: and the driving motor 22, the driving motor 22 is in driving connection with the driving shaft to drive the driving shaft to rotate, and the plurality of driving parts 21 are arranged on the shaft body of the driving shaft at intervals along the extending direction of the driving shaft. This arrangement can reduce the installation space, and the plurality of driving portions 21 are moved by one driving shaft, so that the plurality of driving portions 21 can be synchronized.
In a specific implementation, the driving portion 21 includes: a first gear 210, at least part of the first gear 210 being mounted on the driver 20; and a second gear 211, wherein the second gear 211 is meshed with the first gear 210, and the second gear 211 is connected with the mounting component 4 through the connecting shaft 23. The structure thus provided is simple and easy to implement, and preferably, the first gear 210 and the second gear 211 are tapered teeth.
Specifically, the support body 1 is provided with a through hole, and at least a part of the connecting shaft 23 is connected with the mounting component 4 after passing through the through hole.
In the embodiment provided by the present invention, the valve 3 comprises: a valve body 30, the valve body 30 having a passage therein for communicating with a pipeline; and a valve body 31, at least a part of the valve body 31 being disposed in the passage, the valve body 31 having an operation portion 310 such that the valve body 31 is connected to the driving portion 21 through the operation portion 310.
The support body 1 is provided with a receiving part 11, the receiving part 11 is provided with a clamping groove 110, and at least part of the valve body 30 is clamped in the clamping groove 110. The arrangement enables the materials flowing through the valve 3 to smoothly circulate, and the valve body 30 is supported by the bearing part 11, so that the stability of the valve body 30 is ensured.
In the concrete implementation, taking the laying of epoxy floor paint as an example, a feeding system needs a plurality of pipelines for feeding, and the plurality of pipelines are connected with the plurality of valves in a one-to-one correspondence manner.
The invention also provides a control system for controlling the flow or cut-off of material in a pipeline, the control system comprising a valve control device, at least part of the valve control device being connected to the pipeline, the valve control device being the valve control device of the above embodiment.
In specific implementation, the epoxy floor paint is paved, the control system further comprises a pressure barrel 5, a raw material barrel 6 and a hose 8, wherein the raw material barrel 6 is filled with a material 7, a valve control device 9 is connected with the hose 8, and the pressure barrel 5 is arranged above the raw material barrel 6; after floor paint is paved, materials in the hoses and the valves need to be cleaned in the prior art, but the cleaning cost is high, the cleaning is not thorough, chemical substances are easy to remain to block the valves or the hoses, the valve is detachably connected with the supporting body 1, when the materials are replaced, the valve does not need to be cleaned, a new valve can be directly replaced, the floor paint is safer and more environment-friendly, the maintenance is convenient, more waste liquid cannot be generated, chemical solvents cannot be consumed, and the total cost is reduced.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the valve control device comprises a support body 1 and a driving assembly 2, wherein an installation space 10 is arranged on the support body 1, at least part of the driving assembly 2 is installed in the installation space 10, the driving assembly 2 comprises a driving part 20 and a plurality of driving parts 21, and the plurality of driving parts 21 are all installed on the driving part 20 and connected with the driving part 20 so as to drive the plurality of driving parts 21 to rotate simultaneously through the driving part 20; the plurality of driving portions 21 are connected to the plurality of valves 3 in a one-to-one correspondence manner, so that the plurality of valves 3 are simultaneously controlled to be opened or closed by the plurality of driving portions 21. Set up like this and can control a plurality of valves 3 and open or close simultaneously, can guarantee the unity to the control of a plurality of valves 3, simplified control circuit and gas circuit, reduced the installation space to the controlling means of a plurality of valves, solved among the prior art when laying epoxy terrace paint, the control valve of terrace paint occupies great installation space's problem.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A valve control apparatus, comprising:
the supporting device comprises a supporting body (1), wherein an installation space (10) is arranged on the supporting body (1);
the driving assembly (2) is at least partially installed in the installation space (10), the driving assembly (2) comprises a driving part (20) and a plurality of driving parts (21), and the plurality of driving parts (21) are all installed on the driving part (20) and connected with the driving part (20) so as to drive the plurality of driving parts (21) to rotate simultaneously through the driving part (20);
the plurality of driving parts (21) are connected with the plurality of valves (3) in a one-to-one correspondence manner, so that the plurality of valves (3) are controlled to be opened or closed simultaneously through the plurality of driving parts (21).
2. The valve control apparatus of claim 1, further comprising:
a mounting assembly (4), the mounting assembly (4) being arranged on the support body (1); the installation component (4) is a plurality of, and is a plurality of installation component (4) and a plurality of valve (3) one-to-one ground are connected, drive division (21) with installation component (4) are connected to through installation component (4) drive valve (3) rotate.
3. Valve control device according to claim 2, characterized in that the mounting assembly (4) comprises:
a first mounting block (40), at least part of said first mounting block (40) being arranged on said support body (1);
a second mounting block (41), at least part of said second mounting block (41) being arranged on said support body (1), said second mounting block (41) being arranged opposite said first mounting block (40) so as to constitute a mounting groove between said first mounting block (40) and said second mounting block (41) for accommodating said valve (3);
a connection block (42), the first mounting block (40) and the second mounting block (41) being connected by the connection block (42), at least a portion of the connection block (42) being connected to one of the plurality of driving portions (21).
4. A valve control apparatus according to claim 3, wherein the first mounting block (40) and/or the second mounting block (41) is provided with a mounting hole and the body of the valve (3) is provided with a through hole such that the valve (3) can be connected to the first mounting block (40) and/or the second mounting block (41) by passing at least part of a connector through the mounting hole and the through hole in that order.
5. The valve control apparatus of claim 1, wherein the drive member (20) is a drive shaft, the drive assembly (2) further comprising:
the driving motor (22) is in driving connection with the driving shaft so as to drive the driving shaft to rotate, and the plurality of driving parts (21) are arranged on the shaft body of the driving shaft at intervals along the extending direction of the driving shaft.
6. The valve control apparatus according to claim 2, wherein the drive portion (21) includes:
a first gear (210), at least part of the first gear (210) being mounted on the driver (20);
a second gear (211), the second gear (211) is meshed with the first gear (210), and the second gear (211) is connected with the mounting component (4) through a connecting shaft (23).
7. Valve control device according to claim 6, characterized in that the support body (1) is provided with a through hole through which at least part of the connecting shaft (23) passes before being connected to the mounting assembly (4).
8. The valve control device according to any one of claims 1 to 7, wherein the valve (3) comprises:
a valve body (30), the valve body (30) having a passage therein for communicating with a conduit;
a valve element (31), at least part of the valve element (31) being arranged in the channel, the valve element (31) having an operating portion (310) such that the valve element (31) is connected to the drive portion (21) via the operating portion (310).
9. The valve control device according to claim 8, characterized in that the support body (1) is provided with a receiving portion (11), the receiving portion (11) is provided with a clamping groove (110), and at least part of the valve body (30) is clamped in the clamping groove (110).
10. A control system for controlling the flow of material through or out of a conduit, the control system comprising a valve control device, at least part of the valve control device being connected to the conduit, wherein the valve control device is as claimed in any one of claims 1 to 9.
CN202010163413.7A 2020-03-10 2020-03-10 Valve control device and control system with same Pending CN113374913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010163413.7A CN113374913A (en) 2020-03-10 2020-03-10 Valve control device and control system with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010163413.7A CN113374913A (en) 2020-03-10 2020-03-10 Valve control device and control system with same

Publications (1)

Publication Number Publication Date
CN113374913A true CN113374913A (en) 2021-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010163413.7A Pending CN113374913A (en) 2020-03-10 2020-03-10 Valve control device and control system with same

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CN (1) CN113374913A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006187A (en) * 2014-05-13 2014-08-27 江苏爵格工业设备有限公司 Valve linkage device
CN204099706U (en) * 2014-09-16 2015-01-14 湖南工业大学 Based on the valve order start-stop device of differential planetary wheel mechanism
JP2016160969A (en) * 2015-02-27 2016-09-05 日本ギア工業株式会社 Electric valve actuator
CN207961690U (en) * 2018-03-19 2018-10-12 温州跃中机械科技有限公司 A kind of multi-drive type bevel gear rotary type valve
CN209925732U (en) * 2019-05-05 2020-01-10 中国神华煤制油化工有限公司 Valve control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006187A (en) * 2014-05-13 2014-08-27 江苏爵格工业设备有限公司 Valve linkage device
CN204099706U (en) * 2014-09-16 2015-01-14 湖南工业大学 Based on the valve order start-stop device of differential planetary wheel mechanism
JP2016160969A (en) * 2015-02-27 2016-09-05 日本ギア工業株式会社 Electric valve actuator
CN207961690U (en) * 2018-03-19 2018-10-12 温州跃中机械科技有限公司 A kind of multi-drive type bevel gear rotary type valve
CN209925732U (en) * 2019-05-05 2020-01-10 中国神华煤制油化工有限公司 Valve control device

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Application publication date: 20210910