CN217736351U - Driving mechanism and rotary control valve with same - Google Patents

Abstract

The utility model provides a actuating mechanism and have its rotation type control valve. It includes: the power supply device comprises a shell, a power supply and a power supply, wherein the shell is provided with a control cavity and a power cavity which are arranged at intervals, one end of the shell is provided with an output port, the output port is communicated with the power cavity, the shell is provided with a first threading hole, and the first threading hole is communicated with the control cavity; the driving assembly is arranged in the power cavity and provided with an output shaft, the output shaft extends out of the output port, and the output shaft is used for driving and connecting a valve core assembly of the rotary control valve; and the control assembly is arranged in the control cavity and is electrically connected with the driving assembly so as to control the driving assembly to work. Through the technical scheme that this application provided, can solve the rotation type control valve among the prior art's the problem that the volume is bigger than normal.

Description

Driving mechanism and rotary control valve with same

Technical Field

The utility model relates to the technical field of valves, particularly, relate to an actuating mechanism and have its rotation type control valve.

Background

Rotary control valves typically include a valve body, a valve spool, and a drive mechanism. The valve core is rotatably arranged in the valve body, the driving mechanism is arranged on the valve body, and the driving mechanism is in driving connection with the valve core so as to enable the valve core to rotate. The conventional drive mechanism generally includes a plurality of components provided separately and individually on the valve body. The above arrangement makes the volume of the rotary control valve large.

SUMMERY OF THE UTILITY MODEL

The utility model provides an actuating mechanism and have its rotation type control valve to solve the rotation type control valve among the prior art's the problem that the volume is big on the left side.

According to an aspect of the present invention, there is provided a driving mechanism, comprising: the power supply device comprises a shell, a power supply and a power supply, wherein the shell is provided with a control cavity and a power cavity which are arranged at intervals, one end of the shell is provided with an output port, the output port is communicated with the power cavity, the shell is provided with a first threading hole, and the first threading hole is communicated with the control cavity; the driving assembly is arranged in the power cavity and provided with an output shaft, the output shaft extends out of the output port, and the output shaft is used for driving and connecting a valve core assembly of the rotary control valve; and the control assembly is arranged in the control cavity and is electrically connected with the driving assembly so as to control the driving assembly to work.

Use the technical scheme of the utility model, the casing has control chamber and the power chamber that the interval set up to, control assembly sets up in the control chamber, and drive assembly sets up in the power intracavity, so sets up, can guarantee actuating mechanism's compact structure nature. Compared with the traditional technical scheme, the technical scheme of this application all integrates the inside at same casing with drive assembly and control assembly to, drive assembly and control assembly set up respectively in power chamber and control intracavity. So set up for drive assembly and control assembly can avoid taking place the condition of mutual interference between drive assembly and the control assembly at the inside interval distribution of casing, and then can guarantee the rationality of actuating mechanism overall arrangement.

Further, the casing includes the barrel and separates fender portion, and the delivery outlet setting separates the inside of keeping off the portion setting at the barrel at the one end of barrel, separates fender portion and separates the barrel into control chamber and power chamber, separates that fender portion has the second through wires hole. So set up, can guarantee that drive assembly and control assembly distribute along the extending direction of barrel, guarantee the rationality that drive assembly and control assembly distribute.

Further, the one end of keeping away from the delivery outlet of casing has first installing port, first installing port and control chamber intercommunication, and the outer peripheral edges of partition portion are connected with the inner wall laminating and the integrated into one piece of barrel. So set up, can guarantee the convenience to barrel processing.

Further, the shell further comprises a first end cover, the first end cover is arranged at the first mounting opening, and the first end cover is detachably connected with the barrel. So set up, can guarantee the convenience to the control assembly.

Furthermore, a limiting structure is arranged on the blocking part and is in limiting fit with the driving assembly, and/or the limiting structure is in limiting fit with the control assembly. So set up, can guarantee convenience and accuracy nature to the actuating mechanism assembly to, can guarantee actuating mechanism's stability.

Furthermore, the one end of barrel keeping away from the control chamber is provided with the second installing port, and the casing still includes the second end cover, and the second end cover sets up in second installing port department to can dismantle with the barrel and be connected, the delivery outlet setting is on the second end cover, and the second end cover can be dismantled with drive assembly and be connected. So set up, can guarantee the convenience to the drive assembly.

Further, limit structure includes the spacing groove, and the spacing groove is located the one side of keeping away from the control chamber of keeping away from the portion of keeping off, and drive assembly includes driving piece, reduction gears and bearing, and the driving piece is connected with the reduction gears drive, and the bearing setting is at the spacing inslot, and the driving piece has the drive shaft, and on the bearing was worn to establish by the one end of drive shaft, reduction gears had the output shaft, and the other end and the output shaft drive of drive shaft are connected. So set up, its simple structure to the convenience is assembled drive assembly.

According to another aspect of the present invention, there is provided a rotary control valve, comprising: the valve body is provided with an accommodating cavity and a third mounting opening, and the third mounting opening is positioned at one end of the valve body and is communicated with the accommodating cavity; the valve core assembly is rotatably arranged in the accommodating cavity; in the driving mechanism, the shell of the driving mechanism is detachably connected with the valve body, the output port of the driving mechanism is communicated with the third mounting port, and the output shaft of the driving mechanism penetrates through the third mounting port and is in driving connection with the valve core assembly. So set up, can guarantee rotary control valve's compact structure nature.

Furthermore, the rotary control valve also comprises an induction assembly, the induction assembly is used for inducing the rotation angle of the valve core assembly, and the induction assembly is electrically connected with the control assembly. The setting of response subassembly can further promote the rotation accuracy of rotary control valve.

Further, the sensing assembly includes: the first induction part is arranged on the valve core assembly and used for inducing the rotation angle of the valve core assembly; the second induction part is arranged on the valve body and is respectively electrically connected with the first induction part and the control assembly. The arrangement of the first induction part and the second induction part has a simple structure and can ensure the accuracy of detecting the rotation angle of the valve core assembly.

Further, the valve body still includes the third end cover, third end cover detachably sets up in third installation department, the third end cover has the through-hole, the output shaft passes the through-hole and is connected with the case subassembly, second response portion has relative response end and the stiff end that sets up, the response end be used for with the signal of the first response portion of response, second response portion wears to establish on the third end cover, and the stiff end is located the outside of valve body, be provided with on actuating mechanism's the casing and dodge the groove, the stiff end is located and dodges the inslot. So set up, can guarantee the convenience to the assembly of second response portion.

Further, the valve body still includes the third end cover, and third end cover detachably sets up in third installation department, and the third end cover has the through-hole, and the case subassembly has the connecting axle, and the connecting axle rotationally sets up in the through-hole, and the output shaft is connected with the connecting axle drive. The convenience that output shaft and case subassembly are connected can be guaranteed in the setting of connecting axle.

Further, the rotary control valve further comprises a sealing ring, and the sealing ring is arranged between the connecting shaft and the through hole to seal the through hole. So set up, can promote the sealed effect to the rotation type control valve.

Furthermore, the end, close to the driving mechanism, of the valve element assembly is provided with a clamping groove, the cross section of the clamping groove is polygonal, and the output shaft is in clamping fit with the clamping groove. So set up, its simple structure, and convenient assembling.

Furthermore, the rotary control valve further comprises a limiting part, the limiting part is arranged between the shell and the valve body, and the limiting part is in limiting fit with the shell. So set up for spacing portion can be injectd the relative position between casing and the valve body, guarantees the axiality of output shaft and case subassembly, guarantees case subassembly pivoted smooth and easy nature.

Furthermore, one end of the valve body, which is close to the driving mechanism, is provided with a limit ring, and one end of the shell, which is close to the valve body, is provided with a limit structure matched with the limit ring. The limiting ring is simple in structure and good in limiting effect.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, 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 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;

fig. 2 shows a cross-sectional view of a barrel provided in an embodiment of the present invention;

fig. 3 is a cross-sectional view of a driving mechanism provided in accordance with an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating an explosion structure of a rotary control valve according to a second embodiment of the present invention;

fig. 5 is a schematic diagram illustrating another explosion structure of the rotary control valve according to the second embodiment of the present invention;

fig. 6 is a sectional view of a rotary control valve according to a second embodiment of the present invention;

fig. 7 shows a schematic structural diagram of a valve body provided by the second embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 101. a control chamber; 102. a power cavity; 103. an output port; 104. a first threading hole; 105. a first mounting port; 106. a second mounting port;

11. a barrel; 12. a barrier portion; 121. a second threading hole; 122. a limiting structure;

13. a first end cap; 14. a second end cap; 141. an avoidance groove;

20. a drive assembly; 201. an output shaft;

21. a drive member; 211. a drive shaft; 22. a speed reduction mechanism; 23. a bearing;

30. a control component;

40. a valve body; 401. an accommodating chamber; 402. a third mounting port; 403. a limiting ring;

50. a valve core assembly; 501. a connecting shaft; 502. a seal ring; 503. a clamping groove;

60. an inductive component; 61. a first sensing part; 62. a second sensing part;

70. a third end cap; 701. a through hole;

81. a power line; 82. a signal line; 83. a sensing line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the present embodiment provides a drive mechanism including a housing 10, a drive assembly 20, and a control assembly 30. The casing 10 is provided with a control cavity 101 and a power cavity 102 which are arranged at intervals, one end of the casing 10 is provided with an output port 103, the output port 103 is communicated with the power cavity 102, the casing 10 is provided with a first threading hole 104, and the first threading hole 104 is communicated with the control cavity 101. The driving assembly 20 is arranged in the power cavity 102, the driving assembly 20 is provided with an output shaft 201, the output shaft 201 extends out of the output port 103, and the output shaft 201 is used for driving the valve core assembly 50 connected with the rotary control valve. The control assembly 30 is disposed in the control chamber 101, and the control assembly 30 is electrically connected to the driving assembly 20 to control the operation of the driving assembly 20.

Use the technical scheme of the utility model, casing 10 has control chamber 101 and power chamber 102 that the interval set up to, control assembly 30 sets up in control chamber 101, and drive assembly 20 sets up in power chamber 102, so sets up, can guarantee actuating mechanism's compact structure nature. Compared with the traditional technical scheme, the technical scheme of the application integrates the driving assembly 20 and the control assembly 30 in the same shell 10, and the driving assembly 20 and the control assembly 30 are respectively arranged in the power cavity 102 and the control cavity 101. With the arrangement, the driving assembly 20 and the control assembly 30 are distributed in the housing 10 at intervals, so that mutual interference between the driving assembly 20 and the control assembly 30 can be avoided, and reasonability of the layout of the driving mechanism can be ensured. In addition, the arrangement is such that the output shaft 201 extends from one end of the cylinder 11, and thus, the compactness of the driving mechanism can be further ensured.

Specifically, the housing 10 includes a cylinder 11 and a baffle 12, the output port 103 is disposed at one end of the cylinder 11, the baffle 12 is disposed inside the cylinder 11, the baffle 12 divides the cylinder 11 into a control chamber 101 and a power chamber 102, and the baffle 12 has a second threading hole 121. The arrangement is such that the drive assembly 20 is located on one side of the barrier 12 and the control assembly 30 is located on the other side of the barrier 12. And, a connecting line is provided between the driving assembly 20 and the control assembly 30, and the second threading hole 121 is used for the connecting line between the driving assembly 20 and the control assembly 30 to pass through. With this arrangement, the smoothness of the connection between the driving unit 20 and the control unit 30 can be further improved, and the neatness of the inside of the housing 10 can be ensured.

As shown in fig. 2 and 3, the housing 10 has a first mounting opening 105 at an end thereof remote from the output opening 103, the first mounting opening 105 communicates with the control chamber 101, and the outer peripheral edge of the stopper 12 is attached to the inner wall of the cylindrical body 11 and integrally formed therewith. In the operation of the rotary control valve, there may be a situation where there is liquid inside the power chamber 102 or the control chamber 101. Above-mentioned setting can make to separate fender portion 12 and separate the fender to power chamber 102 and control chamber 101 better, promotes the isolated effect in power chamber 102 and control chamber 101, reduces the liquid in power chamber 102 inside and the inside liquid in control chamber 101 and takes place the condition of circulation each other, guarantees insulating water-proof effects. And above-mentioned setting, can promote the convenience of processing to casing 10.

Optionally, the barrier 12 is detachably connected to the barrel 11, and the periphery of the barrier 12 is attached to the inner wall of the barrel 11. When blocking portion 12 and barrel 11 can dismantle the connection, this scheme does not do the injectment to the concrete mode that can dismantle the connection, and wherein, accessible fastener, joint or the mode of pegging graft realize dismantling the connection.

Further, the housing 10 further includes a first end cap 13, the first end cap 13 is disposed at the first mounting opening 105, and the first end cap 13 is detachably connected to the cylinder 11. So set up, can make first end cover 13 carry out the shutoff to first installing port 105 department, promote the protection effect to control assembly 30, prolong control assembly 30's life. The scheme does not limit the connection mode of the first end cover 13 and the barrel body 11, and the connection can be carried out in a clamping or inserting mode. In this embodiment, the first end cap 13 is connected to the cylinder 11 by a first bolt.

As shown in fig. 2 and 3, the blocking portion 12 is provided with a limiting structure 122, and the limiting structure 122 is in limiting fit with the driving assembly 20. The arrangement of the limiting structure 122 can limit and position the assembly of the driving assembly 20 and the cylinder 11, and further can improve the convenience and accuracy of the assembly of the driving assembly 20 and the housing 10.

Optionally, the limit structure 122 is in limit fitting with the control assembly 30. So set up for limit structure 122 can play spacing and the effect of location to control assembly 30's assembly, and then can improve convenience and the accuracy nature of control assembly 30 and casing 10 assembly.

Further, one end of the cylinder 11, which is far away from the control chamber 101, is provided with a second mounting opening 106, the housing 10 further includes a second end cap 14, the second end cap 14 is disposed at the second mounting opening 106 and detachably connected to the cylinder 11, the output opening 103 is disposed on the second end cap 14, and the second end cap 14 is detachably connected to the driving assembly 20. So set up for when assembling actuating mechanism, make in drive assembly 20 assembles to casing 10 by second installing port 106, control assembly 30 by first installing port 105 assemble to casing 10 inside can, and then can promote the convenience to the actuating mechanism assembly. And, the second end cover 14 is detachably connected with the driving assembly 20, so that the structural stability of the driving mechanism can be ensured. The detachable connection mode of the second end cover 14 and the driving assembly 20 is not limited in the scheme, wherein the second end cover 14 and the driving assembly 20 can be connected through a second bolt in a clamping and inserting mode.

Specifically, limit structure 122 includes the spacing groove, and the spacing groove is located the one side of keeping away from control chamber 101 of partition portion 12, and drive assembly 20 includes driving piece 21, reduction gears 22 and bearing 23, and driving piece 21 and reduction gears 22 drive connection, and bearing 23 sets up at the spacing inslot, and driving piece 21 has drive shaft 211, and the one end of drive shaft 211 is worn to establish on bearing 23, and reduction gears 22 has output shaft 201, and the other end and the output shaft 201 drive connection of drive shaft 211. In this embodiment, the driving member 21 and the speed reducing mechanism 22 are distributed along the direction from the control chamber 101 to the power chamber 102. The two bearings 23 are provided, and the two bearings 23 are respectively provided at both ends of the driving shaft 211, wherein the bearing 23 adjacent to the barrier portion 12 is provided in the stopper groove. The end face of the speed reducing mechanism 22 close to the end of the driving member 21 is provided with a positioning groove, and the bearing 23 at the end far from the blocking portion 12 is provided in the positioning groove. With such an arrangement, the situation that the driving assembly 20 shakes inside the housing 10 can be reduced, and the stability of the driving mechanism is ensured.

As shown in fig. 4 to 7, a second embodiment of the present invention provides a rotary control valve, which includes a valve body 40, a valve core assembly 50 and a driving mechanism in the first embodiment. Wherein the valve body 40 has a receiving chamber 401 and a third mounting port 402, the third mounting port 402 being located at one end of the valve body 40 and communicating with the receiving chamber 401. The cartridge assembly 50 is rotatably disposed within the receiving chamber 401. The housing 10 of the driving mechanism is detachably connected with the valve body 40, the output port 103 of the driving mechanism is communicated with the third mounting port 402, and the output shaft 201 of the driving mechanism passes through the third mounting port 402 and is in driving connection with the valve core assembly 50. In this scheme, the whole cylindrical shell structure that is of casing 10, valve body 40 are cylindrical structure, and casing 10 and valve body 40 coaxial setting to, power chamber 102 is close to valve body 40 and sets up. So set up, can guarantee rotary control valve's compact structure nature. Furthermore, the control chamber 101 is disposed away from the valve body 40, which can further reduce the possibility that the liquid inside the valve body 40 flows into the control chamber 101, and reduce the possibility that the control assembly 30 is damaged by the liquid. In this embodiment, the second end cap 14 is connected to the valve body 40 by a third bolt. By the arrangement, convenience and stability of connection of the second end cover 14 and the valve body 40 can be guaranteed.

Further, the rotary control valve further comprises a sensing assembly 60, wherein the sensing assembly 60 is used for sensing the rotation angle of the valve core assembly 50, and the sensing assembly 60 is electrically connected with the control assembly 30. Through setting up response subassembly 60, can in time accurately feed back the rotation condition of case subassembly 50, and then, can guarantee the monitoring effect to case subassembly 50, guarantee the accuracy of rotation type control valve switching-over.

As shown in fig. 7, the sensing assembly 60 includes a first sensing part 61 and a second sensing part 62. The first sensing portion 61 is disposed on the valve core assembly 50, and the first sensing portion 61 is used for sensing a rotation angle of the valve core assembly 50. The second sensing portion 62 is disposed on the valve body 40, and the second sensing portion 62 is electrically connected to the first sensing portion 61 and the control unit 30, respectively. With such an arrangement, the first sensing part 61 can be located inside the accommodating cavity 401, and the sensing accuracy of the first sensing part 61 can be ensured.

As shown in fig. 4 to 7, the valve body 40 further includes a third end cover 70, the third end cover 70 is detachably disposed at the third mounting hole 402, the third end cover 70 has a through hole 701, the output shaft 201 passes through the through hole 701 and is connected to the valve core assembly 50, the second sensing portion 62 has a sensing end and a fixed end which are disposed oppositely, the sensing end is used for sensing a signal of the first sensing portion 61, the second sensing portion 62 is disposed on the third end cover 70 in a penetrating manner, and the fixed end is located at an outer side of the valve body 40, the housing 10 of the driving mechanism is provided with an avoiding groove 141, and the fixed end is located in the avoiding groove 141. In this embodiment, the first sensing portion 61 is disposed at an end of the valve core assembly 50 close to the third end cover 70, and the first sensing portion 61 is made of a magnetic material. The second sensing part 62 is an inductive probe, the second sensing part 62 has a housing, a thread is provided on the housing of the second sensing part 62, the second sensing part 62 is in threaded connection with the third end cap 70, and the number of the second sensing part 62 is at least two. The number of the avoiding grooves 141 is the same as that of the second sensing parts 62, and the second sensing parts 62 are arranged in one-to-one correspondence with the avoiding grooves 141. With the above arrangement, the fitting accuracy of the second sensing portion 62 of the first sensing portion 61 can be ensured, and the compactness of the rotary control valve and the layout rationality of the structure can be ensured. And, the third end cap 70 can be detachably connected with the valve body 40 by clamping or plugging. In the present embodiment, the third end cover 70 is connected to the valve body 40 by a fourth bolt, and the fourth bolt is located on the outer periphery of the second end cover 14.

As shown in fig. 4, the drive mechanism further includes a power line 81, a signal line 82, and a sensor line 83. Wherein, control assembly 30 includes the controller, and first threading hole 104 is provided with threely along the circumference interval of barrel 11, and power cord 81, signal line 82 and sensing line 83 set up with three first threading hole 104 one-to-one respectively, and the one end of sensing line 83 is connected with one of them second response portion 62, and the other end and the controller of sensing line 83 are connected, and signal line 82 and power cord 81 are connected with the controller respectively.

As shown in fig. 6 and 7, a clamping groove 503 is provided at one end of the valve core assembly 50 close to the driving mechanism, the cross section of the clamping groove 503 is polygonal, and the output shaft 201 is in clamping fit with the clamping groove 503. In this embodiment, the engaging groove 503 is provided at an end of the connecting shaft 501 close to the driving mechanism, and the cross-sectional shape of the end of the output shaft 201 is the same as the cross-sectional shape of the engaging groove 503. In this embodiment, the cross section of the engaging groove 503 and the cross section of the end of the output shaft 201 are both quadrilateral. So set up, can guarantee the convenience of output shaft 201 and case subassembly 50 assembly. And above-mentioned setting for under the condition that the rotation type control valve does not introduce extra structure of splining, just can avoid case subassembly 50 and output shaft 201 to take place the relative condition of rotating in the circumference, promoted the convenience to case subassembly 50 and output shaft 201 processing.

As shown in fig. 6 and 7, the valve core assembly 50 includes a valve core and a connecting shaft 501 connected in sequence along an axial direction, the valve core is rotatably disposed in the accommodating cavity 401, the connecting shaft 501 is rotatably disposed in the through hole 701, the clamping groove 503 is disposed at one end of the connecting shaft 501 far away from the valve core, and the output shaft 201 is in driving connection with the connecting shaft 501. The arrangement of the connecting shaft 501 can improve the convenience of connecting the output shaft 201 and the valve core assembly 50. In addition, in the scheme, the end face of the valve element, which is close to the connecting shaft 501, is also provided with a polygonal clamping groove, one end of the connecting shaft 501, which is connected with the valve element, is also provided with a polygon matched with the polygonal clamping groove, and the connecting shaft 501 is in clamping fit with the polygonal clamping groove.

Further, the rotary control valve further includes a sealing ring 502, and the sealing ring 502 is disposed between the connecting shaft 501 and the through hole 701 to seal the through hole 701. The number of the seal rings 502 is not limited by the scheme, and in this embodiment, two seal rings 502 are arranged at intervals along the axis direction of the connecting shaft 501. So set up, can guarantee the sealed effect of rotation type control valve. Specifically, the circumferential surface of the connecting shaft 501 is provided with annular clamping grooves, the annular clamping grooves are arranged in one-to-one correspondence with the sealing rings 502, and the sealing rings 502 are arranged in the annular clamping grooves. So set up, can guarantee the convenience of assembly to sealing washer 502 and can guarantee sealing washer 502's stability.

Further, the rotary control valve further comprises a limiting part, the limiting part is arranged between the shell 10 and the valve body 40, and the limiting part is in limiting fit with the shell 10. The arrangement of the limiting part can increase the installation coaxiality of the valve core assembly 50 and the driving piece 21, and further increase the rotation coaxiality of the driving valve core assembly 50.

As shown in fig. 5 to 7, a limit ring 403 is provided at one end of the valve body 40 close to the driving mechanism, the limit ring 403 is provided on the third end cap 70, and an outer peripheral surface of the limit ring 403 abuts against an inner peripheral wall of the output port 103 provided on the second end cap 14 for limiting. The limiting ring 403 is simple in structure. In this embodiment, the limiting ring 403 is disposed at an end of the third end cap 70 close to the driving mechanism, and the limiting ring 403 and the third end cap 70 are integrally formed. So set up, can guarantee the structural strength that spacing ring 403 and third end cover 70 are connected to can guarantee the convenience to spacing ring 403 and third end cover 70 processing.

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.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown 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 … …" may include both orientations 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.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (16)

1. A drive mechanism, comprising:

the power supply device comprises a shell (10) and a control device, wherein the shell (10) is provided with a control cavity (101) and a power cavity (102) which are arranged at intervals, one end of the shell (10) is provided with an output port (103), the output port (103) is communicated with the power cavity (102), the shell (10) is provided with a first threading hole (104), and the first threading hole (104) is communicated with the control cavity (101);

the driving assembly (20) is arranged in the power cavity (102), the driving assembly (20) is provided with an output shaft (201), the output shaft (201) extends out of the output port (103), and the output shaft (201) is used for driving a valve core assembly (50) connected with a rotary control valve;

the control assembly (30) is arranged in the control cavity (101), and the control assembly (30) is electrically connected with the driving assembly (20) to control the driving assembly (20) to work.

2. The drive mechanism according to claim 1, wherein the housing (10) comprises a barrel (11) and a barrier (12), the output port (103) is provided at one end of the barrel (11), the barrier (12) is provided inside the barrel (11), the barrier (12) divides the barrel (11) into a control chamber (101) and a power chamber (102), and the barrier (12) has a second threading hole (121).

3. The drive mechanism according to claim 2, characterized in that the end of the housing (10) remote from the output port (103) has a first mounting port (105), the first mounting port (105) communicates with the control chamber (101), and the outer periphery of the barrier portion (12) is fitted and integrally connected with the inner wall of the cylinder (11).

4. The drive mechanism according to claim 3, wherein the housing (10) further comprises a first end cap (13), the first end cap (13) being provided at the first mounting opening (105), the first end cap (13) being detachably connected with the cylinder (11).

5. The drive mechanism according to claim 2, wherein a limiting structure (122) is provided on the barrier portion (12), the limiting structure (122) being in limiting engagement with the drive component (20) and/or the limiting structure (122) being in limiting engagement with the control component (30).

6. The drive mechanism according to claim 2, wherein an end of the cylinder (11) remote from the control chamber (101) is provided with a second mounting port (106), the housing (10) further comprises a second end cap (14), the second end cap (14) is provided at the second mounting port (106) and detachably connected to the cylinder (11), the output port (103) is provided on the second end cap (14), and the second end cap (14) is detachably connected to the drive assembly (20).

7. The drive mechanism according to claim 5, wherein the limit structure (122) comprises a limit groove located on a side of the blocking portion (12) away from the control chamber (101), the drive assembly (20) comprises a drive member (21), a speed reduction mechanism (22) and a bearing (23), the drive member (21) is in driving connection with the speed reduction mechanism (22), the bearing (23) is disposed in the limit groove, the drive member (21) has a drive shaft (211), one end of the drive shaft (211) is arranged on the bearing (23) in a penetrating manner, the speed reduction mechanism (22) has the output shaft (201), and the other end of the drive shaft (211) is in driving connection with the output shaft (201).

8. A rotary control valve, comprising:

a valve body (40) having a receiving chamber (401) and a third mounting port (402), the third mounting port (402) being located at one end of the valve body (40) and communicating with the receiving chamber (401);

the valve core assembly (50) is rotatably arranged in the accommodating cavity (401);

the drive mechanism according to any one of claims 1 to 7, wherein the housing (10) of the drive mechanism is detachably connected with the valve body (40), the output port (103) of the drive mechanism is communicated with the third mounting port (402), and the output shaft (201) of the drive mechanism is in driving connection with the valve core assembly (50).

9. The rotary control valve according to claim 8, further comprising a sensing assembly (60), wherein the sensing assembly (60) is configured to sense a rotation angle of the spool assembly (50), and wherein the sensing assembly (60) is electrically connected to the control assembly (30).

10. The rotary control valve of claim 9, wherein the sensing assembly (60) comprises:

the first sensing part (61) is arranged on the valve core assembly (50), and the first sensing part (61) is used for sensing the rotation angle of the valve core assembly (50);

and a second sensing part (62) arranged on the valve body (40), wherein the second sensing part (62) is respectively and electrically connected with the first sensing part (61) and the control assembly (30).

11. The rotary control valve according to claim 10, wherein the valve body (40) further comprises a third end cover (70), the third end cover (70) is detachably disposed at the third mounting port (402), the third end cover (70) has a through hole (701), the output shaft (201) passes through the through hole (701) and is connected to the valve core assembly (50), the second sensing portion (62) has a sensing end and a fixing end which are disposed oppositely, the sensing end is used for sensing the signal of the first sensing portion (61), the second sensing portion (62) is disposed on the third end cover (70) in a penetrating manner, the fixing end is disposed at the outer side of the valve body (40), an avoiding groove (141) is disposed on the housing (10) of the driving mechanism, and the fixing end is disposed in the avoiding groove (141).

12. The rotary control valve according to claim 8, wherein the valve body (40) further comprises a third end cap (70), the third end cap (70) is detachably disposed at the third mounting port (402), the third end cap (70) has a through hole (701), the spool assembly (50) has a connecting shaft (501), the connecting shaft (501) is rotatably disposed in the through hole (701), and the output shaft (201) is in driving connection with the connecting shaft (501).

13. The rotary control valve according to claim 12, further comprising a sealing ring (502), the sealing ring (502) being disposed between the connecting shaft (501) and the through hole (701) to seal the through hole (701).

14. The rotary control valve according to claim 8, wherein a clamping groove (503) is formed in one end, close to the driving mechanism, of the valve core assembly (50), the section of the clamping groove (503) is polygonal, and the output shaft (201) is in clamping fit with the clamping groove (503).

15. The rotary control valve according to claim 8, further comprising a stop portion disposed between the housing (10) and the valve body (40), the stop portion in stop-fit engagement with the housing (10).

16. The rotary control valve according to claim 15, wherein the valve body (40) is provided with a stop ring (403) at an end thereof adjacent to the driving mechanism, and the housing (10) is provided with a structure for cooperating with the stop ring (403) to stop the valve body (40).

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