CN217736350U

CN217736350U - Rotary control valve

Info

Publication number: CN217736350U
Application number: CN202221441023.2U
Authority: CN
Inventors: 余远航; 康志军
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-04
Anticipated expiration: 2032-06-09

Abstract

The utility model provides a rotation type control valve, it includes: the valve body is provided with a first end and a second end which are oppositely arranged; the valve core assembly is rotatably arranged in the accommodating cavity; the driving assembly is arranged at the first end of the valve body and provided with a driving end, the driving assembly is in driving connection with the valve core assembly, and the driving assembly drives the valve core assembly to rotate in the accommodating cavity through the driving end; the sensing piece is arranged on the first end and is electrically connected with the driving assembly; by the response piece, rotationally set up in holding the intracavity, by response piece and case subassembly synchronous revolution, response piece and by the response cooperation of response piece to detect valve core subassembly's turned angle. Through the technical scheme that this application provided, can solve among the prior art first spacing portion or the spacing portion of second and take place to damage and influence the problem of rotation type control valve normal operating.

Description

Rotary control valve

Technical Field

The utility model relates to the technical field of valves, particularly, relate to a rotation type control valve.

Background

The conventional rotary control valve generally includes a valve body having an accommodating chamber, a valve core rotatably disposed in the accommodating chamber, and a driving assembly disposed on the valve body and drivingly connected to the valve core to rotate the valve core. The rotary control valve further comprises a first limiting portion and a second limiting portion, the first limiting portion is located inside the valve body and is arranged on the inner end face of the valve body, the second limiting portion is arranged at one end of the valve core, and the first limiting portion and the second limiting portion are in butt joint limiting matching to limit the rotation angle of the valve core. However, the first limiting part and the second limiting part are matched, and after long-time use, the first limiting part or the second limiting part may be worn or even damaged, so that the normal operation of the rotary control valve is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotary control valve to the problem that first spacing portion or the spacing portion of second among the solution prior art took place to damage and influence rotary control valve normal operating.

The utility model provides a rotation type control valve, it includes: the valve body is provided with a containing cavity and a first end and a second end which are oppositely arranged; the valve core assembly is rotatably arranged in the accommodating cavity; the driving assembly is arranged at the first end of the valve body and provided with a driving end, the driving end is in driving connection with the valve core assembly, and the driving assembly drives the valve core assembly to rotate in the accommodating cavity through the driving end; the sensing piece is arranged on the valve body and is electrically connected with the driving component; by the response piece, rotationally set up in holding the intracavity, by response piece and case subassembly synchronous revolution, response piece and by the response cooperation of response piece to detect valve core subassembly's turned angle.

Use the technical scheme of the utility model, by response piece and the synchronous rotation of case subassembly, through response piece and by the cooperation of response piece, by response piece pivoted in-process, can avoid the response piece and by the condition that takes place the mutual contact between the response piece the two, and then can avoid the response piece and take place the condition of damage because of the mutual contact by the response piece, guarantee the normal operating of rotation type control valve. Specifically, drive assembly drives valve core subassembly and rotates, is followed the synchronous rotation of case subassembly by the response piece, and after the response piece sensed by the response piece, the response piece transmitted this signal to drive assembly, and drive assembly stops the drive to the case subassembly, and the case subassembly stops rotating. Traditional technical scheme is through setting up the rotation angle in order to restrict the case subassembly at the spacing subassembly between case subassembly and the valve body, passes through spacing subassembly transmission effort between case subassembly and the valve body, and then probably leads to the condition that spacing subassembly damaged. In this scheme, the response piece, by the cooperation of response piece and drive assembly to the turned angle of restriction case subassembly can avoid appearing the response piece and by the condition of the damage that the response piece leads to because the contact, has guaranteed the normal operating of rotation type control valve.

Further, the valve core assembly is provided with a third end and a fourth end which are arranged oppositely, the third end is arranged close to the first end, and the inducted part is arranged on the end face of the third end. So set up, can avoid at case subassembly pivoted in-process, by the condition that takes place mutual interference between response piece and the valve body, guarantee case subassembly pivoted smoothness nature.

Further, the projection of the sensing piece on the third end of the valve core assembly is positioned on the rotation track of the sensed piece. So set up, can reduce as far as possible and respond to the piece and respond to the interval of piece between the axis direction by the response, guarantee to respond to the piece and respond to the precision between the piece by, and then can guarantee the accuracy nature that detects case subassembly turned angle.

Furthermore, the end face of the third end is provided with a limiting structure, and the limiting structure is used for limiting the position of the sensed part. So set up, can guarantee by the position accuracy of response piece installation.

Furthermore, the end face of the third end is provided with a limiting groove, and the induced part is arranged in the limiting groove. The limiting groove is arranged, the structure is simple, and the valve core assembly is convenient to machine and form.

Further, the end face of the sensed part close to the first end of the valve body is flush with the end face of the third end of the valve core assembly. So set up, can avoid being taken place the condition of mutual interference between response piece and the valve body, guarantee case subassembly pivoted smooth and easy nature.

Further, the inducted part is made of magnetic materials, the valve core assembly comprises a body portion and a non-magnetic-conduction portion, the non-magnetic-conduction portion is arranged on the body portion, the driving end is in driving connection with the body portion, and the inducted part is arranged on the non-magnetic-conduction portion. The setting of non-magnetic conduction portion can reduce the condition that magnetic force reduces appears by the response piece, guarantees the response piece and responds to complex stability and accuracy by the response piece.

Further, an installation groove is formed in the end face, close to the first end, of the body portion, and the non-magnetic-conduction portion is detachably arranged in the installation groove. By the arrangement, the non-magnetic-conduction part can be conveniently installed.

Further, the valve core assembly comprises a body part, pressing blocks and a sealing element, wherein the side wall of the body part is provided with fixing grooves which penetrate through two ends of the body part along the axis direction, the sealing element is located in the fixing grooves, the two pressing blocks are respectively located at two ends of the sealing element, the pressing blocks are detachably connected with the body part, and the two pressing blocks are matched to limit the displacement of the sealing element relative to the body part in the axial direction. So set up, can reduce or avoid the inside high low pressure side of valve body to take place the condition of internal leakage, guarantee the stability of rotation type control valve operation.

Further, the eccentric mounting hole that is provided with on the first end, the mounting hole runs through first end setting, is provided with the internal thread in the mounting hole, is provided with the external screw thread on the lateral wall of response piece, and the response piece passes through mounting hole threaded connection with the valve body. So set up, can promote the convenience to response piece assembly.

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 shows a schematic structural diagram of a rotary control valve provided by the present invention;

FIG. 2 illustrates a cross-sectional view of a rotary control valve provided by the present invention;

FIG. 3 shows a partial schematic of the structure at A in FIG. 2;

fig. 4 shows a schematic structural diagram of the valve body provided by the present invention;

fig. 5 shows a partial structural diagram at B in fig. 4.

Wherein the figures include the following reference numerals:

10. a valve body; 101. an accommodating chamber; 102. a communicating hole; 103. mounting holes;

20. a valve core assembly; 201. a limiting groove;

21. a body portion; 211. mounting grooves; 212. fixing grooves; 22. a non-magnetic conductive part; 221. a first bolt; 23. pressing into blocks; 24. a seal member;

30. a drive assembly;

40. a sensing member;

50. the sensed member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a rotary control valve, which includes a valve body 10, a valve core assembly 20, a driving assembly 30, a sensing member 40 and a sensed member 50. Wherein the valve body 10 has a first end and a second end disposed oppositely, the valve body 10 has an accommodating chamber 101 and a communication hole 102 communicating with each other, and the communication hole 102 is disposed on an end surface of the first end. The valve core assembly 20 is rotatably disposed in the receiving chamber 101. The driving assembly 30 is arranged at the first end of the valve body 10, the driving assembly 30 is provided with a driving end, the driving end is in driving connection with the valve core assembly 20 through the communication hole 102, and the driving assembly 30 drives the valve core assembly 20 to rotate in the accommodating cavity 101 through the driving end. A sensing member 40 is disposed on the first end, the sensing member 40 being electrically connected to the driving assembly 30. The sensed member 50 is rotatably disposed in the accommodating cavity 101, the sensed member 50 rotates synchronously with the valve core assembly 20, and the sensing member 40 is in sensing engagement with the sensed member 50 to detect the rotation angle of the valve core assembly 20.

Use the technical scheme of the utility model, by response piece 50 and the synchronous rotation of case subassembly 20, through response piece 40 with by the cooperation of response piece 50, by response piece 50 pivoted in-process, can avoid response piece 40 and by the condition that takes place the mutual contact between the response piece 50 the two, and then can avoid response piece 40 and by response piece 50 because the condition that the mutual contact takes place to damage, guarantee the normal operating of rotary control valve. Specifically, the driving assembly 30 drives the valve core assembly 20 to rotate, the sensed piece 50 rotates synchronously with the valve core assembly 20, when the sensed piece 50 is sensed by the sensing piece 40, the sensing piece 40 transmits the signal to the driving assembly 30, the driving assembly 30 stops driving the valve core assembly 20, and the valve core assembly 20 stops rotating, so that the rotation of the valve core assembly 20 is positioned and limited. The traditional technical scheme is that the rotation angle of the valve core assembly 20 is limited by a limiting assembly arranged between the valve core assembly 20 and the valve body 10, and the acting force is transmitted between the valve core assembly 20 and the valve body 10 through the limiting assembly, so that the situation that the limiting assembly is damaged can be caused. In this scheme, response piece 40, by response piece 50 and drive assembly 30 cooperation to the turned angle of restriction case subassembly 20 can avoid appearing response piece 40 and the condition of being responded to 50 because the damage that the contact leads to, has guaranteed the normal operating of rotary control valve. And, so set up, can guarantee rotary control valve's compact structure nature.

As shown in fig. 2 and 3, the valve core assembly 20 has a third end and a fourth end, which are oppositely disposed, the third end is disposed near the first end, and the sensed member 50 is disposed on an end surface of the third end. Specifically, the first end of the valve body 10 has an inner end surface and an outer end surface which are oppositely arranged along the axial direction, the end surface of the third end has a distance from the inner end surface, and the sensed part 50 has a distance from the inner end surface. With such an arrangement, the situation of mutual interference between the sensing part 50 and the valve body 10 during the rotation of the valve core assembly 20 can be avoided, and the smoothness of the rotation of the valve core assembly 20 can be ensured.

As shown in fig. 4 and 5, the projection of the sensing member 40 on the third end of the valve core assembly 20 is located on the rotation track of the sensed member 50. So set up, can reduce the distance of response piece 40 and the piece 50 that is responded to in the axis direction as far as possible, and then, can guarantee the accuracy nature of the response between response piece 40 and the piece 50 that is responded to, guarantee the accuracy nature that detects the angle of rotation of case subassembly 20. In addition, with this arrangement, the size of the valve body 10 in the axial direction can be reduced as much as possible, so that the rotary control valve can be miniaturized. The present embodiment does not limit the structure of the sensing member 40 and the sensed member 50. In this embodiment, the cross sections of the sensing member 40 and the sensed member 50 along the direction perpendicular to the axis of the valve body 10 are both circular, and the axis of the sensing member 40 coincides with the axis of the sensed member 50.

Further, the sensed member 50 is detachably connected to the valve core assembly 20, and the present embodiment does not limit the specific detachable connection manner. The sensed part 50 can be detachably connected with the valve core assembly 20 in a clamping and inserting manner, and can also be connected with the valve core assembly 20 through a fastener.

In this scheme, be provided with limit structure on the terminal surface of third end, limit structure is used for being restricted by response 50's position. The setting of limit structure can guarantee by the position accuracy of response 50, and then can guarantee response 40 and the accuracy of being responded to the complex by response 50.

As shown in fig. 2 to 5, a limiting groove 201 is disposed on an end surface of the third end, and the sensed part 50 is disposed in the limiting groove 201. In this embodiment, the sensed member 50 and the valve body assembly 20 are connected by bonding. By the arrangement, convenience in assembling the sensed part 50 and the valve core assembly 20 can be guaranteed.

Further, the end surface of the sensed member 50 close to the first end of the valve body 10 is flush with the end surface of the third end of the valve core assembly 20. The scope of response piece 40 is limited, and above-mentioned setting can avoid the tip of the third end of case subassembly 20 to producing the condition of sheltering from by response piece 50, and then can guarantee to respond to the position that piece 40 in time sensed by response piece 50, guarantees the accuracy that detects case subassembly 20 turned angle.

Specifically, the sensed member 50 is made of a magnetic material, the valve core assembly 20 includes a main body 21 and a non-magnetic conductive portion 22, the non-magnetic conductive portion 22 is disposed on the main body 21, the driving end is in driving connection with the main body 21, and the sensed member 50 is disposed on the non-magnetic conductive portion 22. Due to the arrangement of the non-magnetic-conductive part 22, the sensing accuracy of the sensing part 40 can be ensured, and the accuracy of detecting the rotation angle of the valve core assembly 20 is ensured.

Specifically, the end surface of the body portion 21 near the first end is provided with a mounting groove 211, and the non-magnetic conductive portion 22 is detachably disposed in the mounting groove 211. In this embodiment, an end surface of the non-magnetic conductive portion 22 close to the first end and an end surface of the main body portion 21 close to the first end are located on the same horizontal plane, and form an end surface of a third end. The installation of non-magnetic conduction portion 22 can be played the effect of location to the setting of mounting groove 211, and then can guarantee to non-magnetic conduction portion 22 the accuracy and the convenience of installation. The non-magnetic conductive part 22 can be detachably connected with the main body 21 by clamping, inserting or bonding. In this embodiment, the rotary control valve further includes a first bolt 221, the non-magnetic conductive portion 22 is provided with a first counter bore, and the first bolt 221 is inserted into the first counter bore and is in threaded connection with the body portion 21. With this arrangement, convenience in connection between the non-magnetic conductive portion 22 and the body portion 21 can be ensured, and the first bolt 221 and the valve body 10 can be prevented from interfering with each other, thereby ensuring smoothness in rotation of the valve core assembly 20.

As shown in fig. 2 and 3, the valve core assembly 20 further includes a pressing block 23 and a sealing member 24, the side wall of the body 21 has fixing grooves 212, the fixing grooves 212 penetrate through two ends of the body 21 along the axial direction, the sealing member 24 is located in the fixing grooves 212, the two pressing blocks 23 are respectively located at two ends of the sealing member 24, the pressing block 23 is detachably connected to the body 21, and the two pressing blocks 23 cooperate to limit the displacement of the sealing member 24 relative to the body 21 in the axial direction. The body 21 is the body 21, and the sealing member 24 and the two pressing pieces 23 at both ends of the sealing member 24 form a sealing structure. In the present embodiment, two sets of seal structures are provided at intervals in the circumferential direction of the body portion 21. And, an end portion of one of the fixing grooves 212 close to the first end of the valve body 10 forms a mounting groove 211, and the press piece 23 disposed in the mounting groove 211 is made of a non-magnetic conductive material and forms the non-magnetic conductive part 22. By the arrangement, the non-magnetic-conductive part 22 can be matched with the sealing part 24 and the sensed part 50, so that parts of the rotary control valve can be reduced, the structural stability of the valve core assembly 20 is ensured, and the convenience in assembling the rotary control valve can be ensured. The present embodiment does not limit the manner of detachable connection of the other three pressing pieces 23 to the body portion 21. In this embodiment, three second counter bores are respectively disposed on the other three pressing blocks 23, the rotary control valve further includes three second bolts, the second bolts are disposed in one-to-one correspondence with the second counter bores, and the other three pressing blocks 23 are respectively connected to the body portion 21 through the three second bolts. So set up, can guarantee the convenience to the assembly of rotation type control valve.

As shown in fig. 2 and 3, a mounting hole 103 is eccentrically arranged on the first end, the mounting hole 103 penetrates through the first end, an internal thread is arranged in the mounting hole 103, an external thread is arranged on the outer side wall of the sensing member 40, and the sensing member 40 is in threaded connection with the valve body 10 through the mounting hole 103. So set up, can guarantee the convenience to response 40 assembly. In this embodiment, the terminal surface that is close to the one end of case subassembly 20 of response piece 40 flushes the setting with the inner terminal surface of first end, so set up, can guarantee the accuracy nature of response piece 40 to being responded to by the position of response piece 50, and then can guarantee the accuracy that detects case subassembly 20 turned angle. In addition, with such an arrangement, the interference between the sensing member 40 and the valve core assembly 20 can be avoided, and the smoothness of the rotation of the valve core assembly 20 can be ensured. The number of the sensing pieces 40 is not limited in the present embodiment, and in the present embodiment, two sensing pieces 40 are arranged at intervals along the circumferential direction of the valve body 10.

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 exemplary 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 exemplary only and not as 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 orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted 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 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial 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 terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". 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

1. A rotary control valve, comprising:

a valve body (10), wherein the valve body (10) is provided with a containing cavity (101), and the valve body (10) is provided with a first end and a second end which are oppositely arranged;

the valve core assembly (20) is rotatably arranged in the accommodating cavity (101);

the driving assembly (30) is arranged at the first end of the valve body (10), the driving assembly (30) is provided with a driving end, the driving end is in driving connection with the valve core assembly (20), and the driving assembly (30) drives the valve core assembly (20) to rotate in the accommodating cavity (101) through the driving end;

the sensing piece (40) is arranged on the valve body (10), and the sensing piece (40) is electrically connected with the driving assembly (30);

the inducted part (50) is rotatably arranged in the accommodating cavity (101), the inducted part (50) and the valve core assembly (20) rotate synchronously, and the inducting part (40) is in induction fit with the inducted part (50) to detect the rotation angle of the valve core assembly (20).

2. The rotary control valve of claim 1, wherein the spool assembly (20) has third and fourth oppositely disposed ends, the third end being disposed proximate the first end, the sensed member (50) being disposed on an end face of the third end.

3. The rotary control valve according to claim 2, wherein a projection of the sensing member (40) on the third end of the spool assembly (20) is located on a rotational trajectory of the sensed member (50).

4. The rotary control valve according to claim 2, wherein a limiting structure is disposed on an end surface of the third end, and the limiting structure is used for limiting the position of the sensed member (50).

5. The rotary control valve according to claim 4, wherein a limiting groove (201) is disposed on an end surface of the third end, and the sensed member (50) is disposed in the limiting groove (201).

6. The rotary control valve according to claim 2, wherein an end surface of the sensed member (50) adjacent to the first end of the valve body (10) is flush with an end surface of the third end of the valve core assembly (20).

7. The rotary control valve according to claim 1, wherein the sensed member (50) is made of a magnetic material, the spool assembly (20) includes a body portion (21) and a non-magnetic portion (22), the non-magnetic portion (22) is disposed on the body portion (21), the drive end is in driving connection with the body portion (21), and the sensed member (50) is disposed on the non-magnetic portion (22).

8. The rotary control valve according to claim 7, wherein an end surface of the body portion (21) adjacent to the first end is provided with a mounting groove (211), and the non-magnetically permeable portion (22) is detachably disposed in the mounting groove (211).

9. The rotary control valve according to claim 1, wherein the spool assembly (20) comprises a body portion (21), pressing blocks (23) and a sealing member (24), a side wall of the body portion (21) is provided with fixing grooves (212), the fixing grooves (212) penetrate through two ends of the body portion (21) along an axial direction, the sealing member (24) is located in the fixing grooves (212), the two pressing blocks (23) are respectively located at two ends of the sealing member (24), the pressing blocks (23) are detachably connected with the body portion (21), and the two pressing blocks (23) are matched to limit the displacement of the sealing member (24) relative to the body portion (21) in an axial direction.

10. The rotary control valve according to claim 1, wherein the first end is eccentrically provided with a mounting hole (103), the mounting hole (103) is disposed through the first end, an internal thread is disposed in the mounting hole (103), an external thread is disposed on an outer side wall of the sensing member (40), and the sensing member (40) is in threaded connection with the valve body (10) through the mounting hole (103).