Valve detection device and valve assembly

Abstract

The embodiment of the utility model provides a valve detection device and a valve assembly. The valve detection device comprises a shaft assembly, a detection assembly and an adjustable support. The shaft assembly is used for being detachably installed on a valve rod. The detection assembly comprises a shell and a detection part, the detection part is rotatably arranged on the shell around the axis extending in the first direction, the detection part is detachably connected to the shaft assembly, and the detection assembly is configured to detect the rotation angle of the shaft assembly when the detection part rotates along with the shaft assembly. The shell is detachably installed on the adjustable support, and the adjustable support is used for being detachably installed on the valve body so as to fix the shell and the valve body. According to the valve detection device, the detection part is detachably connected to the shaft assembly, and the shaft assembly can be detachably connected with the valve rod, so that the shaft assembly of the valve detection device is a replaceable part, part replacement of the valve detection device can be reduced when the valve detection device is suitable for different valve models, and compatibility of other parts of the valve detection device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve detection, in particular, relates to a valve detection device and a valve assembly. BACKGROUND

[0002] A valve is a device applied to a pipeline to control the flow of fluid in the pipeline. By adjusting the opening of the valve, the flow control of the fluid in the pipeline can be achieved. In order to confirm the opening and closing state of the valve, a valve detection device can be provided on the valve, and the opening and closing state of the valve can be obtained through the valve detection device, so as to facilitate the unified management of the valve. However, there are many types of valves, and different types of valves need to be provided with corresponding types of valve detection devices, which increases the manufacturing cost of the valve detection device. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a valve detection device and a valve assembly to reduce the manufacturing cost of the valve detection device.

[0004] In a first aspect, the embodiments of the present application provide a valve detection device, the valve comprising a valve body and a valve rod, the valve rod being rotatably arranged along an axis of itself in the valve body, the valve detection device comprising a shaft assembly, a detection assembly and an adjustable support; the shaft assembly is used for detachable installation on the valve rod; the detection assembly comprises a shell and a detection part, the detection part being rotatably arranged along an axis extending in a first direction in the shell, the detection part being detachably connected to the shaft assembly, the detection assembly being configured to detect a rotation angle of the shaft assembly when the detection part rotates with the shaft assembly; the shell is detachably installed on the adjustable support, and the adjustable support is used for detachable installation on the valve body to fix the shell and the valve body.

[0005] In the above technical solution, the detection part is detachably connected to the shaft assembly, and the shaft assembly can be detachably connected to the valve rod, so that the shaft assembly of the valve detection device is a replaceable part. When facing different types of valves, the shaft assembly of the valve detection device can be replaced to adapt the valve detection device to the corresponding type of valve, thereby reducing the replacement of parts of the valve detection device and improving the compatibility of other parts of the valve detection device. The adjustable support is detachably installed on the valve body, and the adjustable support can fix the valve detection device on the valve body to realize the assembly of the valve body and the valve detection device. The detection assembly is configured to detect the rotation angle of the shaft assembly when the detection part rotates with the shaft assembly, so that the valve detection device can be applied to ball valves, butterfly valves and other valves that are opened and closed by rotating, thereby improving the compatibility of the valve detection device and reducing the manufacturing cost of the valve detection device.

[0006] In some embodiments, the shaft assembly comprises a shaft body and a first limiting piece; the shaft body extends along a first direction, and the detection part is detachably connected to the shaft body; the first limiting piece is detachably connected to the shaft body, and the first limiting piece is provided with a limiting hole configured to cooperate with the valve rod to circumferentially lock the shaft body and the valve rod.

[0007] In the present embodiment, the first limiting piece is detachably connected to the shaft body, so that when the first limiting piece is damaged, the first limiting piece can be replaced to prolong the service life of the shaft body. The limiting hole provided on the first limiting piece is configured to cooperate with the valve rod, and the limiting hole can circumferentially lock the shaft body and the valve rod, so that the shaft body can drive the valve to rotate around the axis extending along the first direction, thereby realizing the rotation angle detection of the valve rod by the detection assembly. When facing different models of valves, only the model of the first limiting piece needs to be changed to adapt the limiting hole of the first limiting piece to the valve rod of the corresponding model of valve, so that the valve detection device is adapted to the corresponding model of valve, improving the compatibility of the valve detection device and reducing the manufacturing cost of the valve detection device.

[0008] In some embodiments, the first limiting piece is located at one end of the shaft body along the first direction, and the shaft body is provided with a clamping protrusion at the end facing the first limiting piece along the first direction. The first limiting piece is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove to circumferentially lock the first limiting piece and the shaft body. The clamping protrusion can drive the first limiting piece to rotate around the axis extending along the first direction through the cooperation of the clamping protrusion and the clamping groove of the first limiting piece, thereby circumferentially locking the first limiting piece and the shaft body, making the connection of the first limiting piece and the shaft body more convenient and low in assembly difficulty.

[0009] In some embodiments, the shaft body has a first end and a second end opposite along the first direction, and the first limiting piece is arranged at the first end; the shaft assembly further comprises a second limiting piece detachably connected to the detection part, and the second limiting piece is configured to limit the movement of the shaft body along the direction from the first end to the second end. In this way, the second limiting piece can limit the movement of the shaft body, thereby limiting the disengagement of the first limiting piece from the valve rod along the direction from the first end to the second end, improving the assembly stability of the valve detection device and the valve.

[0010] In some embodiments, the second limiting piece is sleeved on the shaft body and circumferentially locked with the shaft body. In this way, the disassembly and assembly of the second limiting piece and the shaft body are more convenient, reducing the assembly difficulty of the second limiting piece. The second limiting piece not only limits the movement of the shaft body along the direction from the first end to the second end, but also circumferentially locks with the shaft body, which is ingenious in structure and strong in practicality.

[0011] In some embodiments, the shaft body comprises a first shaft part and a second shaft part; the second limiting member is sleeved on the first shaft part and locked in the circumferential direction of the first shaft part; the second shaft part is connected to the first shaft part, one end of the second shaft part away from the first shaft part is a first end, one end of the first shaft part away from the second shaft part is a second end, the first limiting member is detachably connected to the second shaft part, and the second shaft part is detachably connected to the first shaft part. By sleeving the second limiting member on the first shaft part and connecting the first limiting member to the second shaft part, the risk of interference between the second limiting member and the first limiting member can be reduced. By detachably connecting the first shaft part and the second shaft part, the disassembly and replacement of the shaft assembly and the replacement of the second shaft part are facilitated, the service life of the first shaft part or the second shaft part of the shaft assembly is improved, and the use cost of the valve detection device is reduced.

[0012] In some embodiments, the adjustable support comprises a mounting assembly and a clamping assembly; the mounting assembly is detachably connected to the housing; the clamping assembly is connected to the mounting assembly and is used for clamping the valve body. By detachably connecting the mounting assembly and the housing, the disassembly and replacement of the detection assembly are facilitated. By connecting the mounting assembly and the valve body through the clamping assembly, the detection assembly and the valve are installed, and the assembly difficulty of the detection assembly and the valve is reduced.

[0013] In some embodiments, the mounting assembly comprises a first mounting bracket and a second mounting bracket, both of which are detachably connected to the housing; the first mounting bracket and the second mounting bracket are respectively located on both sides of the shaft assembly along a second direction, and the second direction intersects with the first direction; the clamping assembly comprises a first clamping member, a second clamping member and an adjusting member; the first clamping member and the second clamping member are used for cooperatively clamping the valve body; the first clamping member is adjustably arranged on the first mounting bracket along the second direction; the second clamping member is adjustably arranged on the second mounting bracket along the second direction; the adjusting member is connected to the first clamping member and the second clamping member, and is used for adjusting the distance between the first clamping member and the second clamping member along the second direction. By connecting the first mounting bracket and the second mounting bracket to the housing, the installation between the housing and the valve body is more stable, and the assembly stability of the detection assembly and the valve body is improved. By adjusting the distance between the first clamping member and the second clamping member through the adjusting member, the first clamping member and the second clamping member can clamp valve bodies of different sizes, so that the valve detection device can be applied to various types of valves, the compatibility of the valve detection device is improved, and the production cost of the valve detection device is reduced.

[0014] In some embodiments, the adjustable support further comprises a first locking member configured to lock the first mounting bracket and the first clamping member in an unlockable manner. In this way, the connection of the first mounting bracket and the first clamping member is more stable, and the disassembly of the first mounting bracket and the first clamping member is more convenient.

[0015] In some embodiments, the adjustable support further comprises a second locking member configured to unlockably lock the second mounting bracket and the second clamping member. In this way, the connection of the second mounting bracket and the second clamping member is more stable, and the disassembly of the second mounting bracket and the second clamping member is more convenient.

[0016] In some embodiments, the adjustable support further comprises a first locking member configured to unlockably lock the first mounting bracket and the first clamping member; and the adjustable support further comprises a second locking member configured to unlockably lock the second mounting bracket and the second clamping member. In this way, the assembly of the adjustable support and the clamping assembly is more stable, and the disassembly is more convenient, thereby improving the assembly stability of the valve detection device and the valve body.

[0017] In a second aspect, the embodiments of the present application provide a valve assembly, comprising a valve and the valve detection device provided by any one of the embodiments of the first aspect; the valve comprises a valve body and a valve rod, the valve rod is rotatably arranged on the valve body along an axis of the valve rod; the shaft assembly is detachably connected to the valve rod, and the adjustable support is detachably connected to the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A structural schematic diagram of a valve assembly provided by some embodiments of the present application;

[0020] Figure 2 A structural schematic diagram of a valve provided by some embodiments of the present application;

[0021] Figure 3 A structural schematic diagram of a valve detection device provided by some embodiments of the present application;

[0022] Figure 4 A structural schematic diagram of a valve detection device provided by some embodiments of the present application; Figure 3 A-A sectional view of the valve detection device;

[0023] Figure 5 An exploded view of a shaft assembly provided by some embodiments of the present application;

[0024] Figure 6 A sectional view of a shaft assembly provided by some embodiments of the present application;

[0025] Figure 7 An exploded view of a shaft assembly provided by some embodiments of the present application;

[0026] Figure 8 An exploded view of the adjustable support provided for some embodiments of the present application.

[0027] Icon: 1-axis assembly; 11-axis body; 111-first end; 112-second end; 1121-sink groove; 113-first shaft part; 1131-first lock hole; 1132-connection head; 1133-connection rod; 1134-second lock pin; 114-second shaft part; 1141-second lock hole; 115-clamping convex; 12-first limiting piece; 121-limiting hole; 122-clamping groove; 13-second limiting piece; 131-first through hole; 14-first lock pin;

[0028] 2-detection assembly; 21-housing; 22-detection part;

[0029] 3-adjustable support; 31-mounting assembly; 311-first mounting bracket; 312-second mounting bracket; 32-clamping assembly; 321-first clamping piece; 322-second clamping piece; 323-adjusting piece; 33-first mounting seat; 34-second mounting seat; 35-first locking piece; 36-second locking piece;

[0030] 10-valve detection device; 20-valve; 201-valve rod; 2011-second part; 202-valve body; 100-valve assembly; Z-first direction; X-second direction. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0033] Reference to an "example" in this application means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same example, nor are they necessarily mutually exclusive or alternative examples.

[0034] In the description of the application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "attaching" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] The term "and / or" in this application is only to describe the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, the character " / " in this application generally represents that the front and rear associated objects have an "or" relationship.

[0036] In the embodiments of the application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only exemplary and should not constitute any limitation on the application.

[0037] "Multiple" appearing in this application means more than two (including two).

[0038] In the embodiments of the application, the valve includes a valve body and a valve stem, and the valve stem is rotatably arranged along its own axis in the valve body. The valve can be a ball valve, a butterfly valve, etc., and the valve stem of the valve is rotatably arranged only around its own axis in the valve body.

[0039] In the fluid control of the pipeline, the opening and closing of the pipeline, the fluid flow, etc. can be adjusted by controlling the opening of the valve. In many industrial fields, the valve has been widely used. With the increase of the application of the valve, the opening of many valves becomes important information for the stable operation of the pipeline. In order to monitor the state of each valve, the valve detection device can be used to detect the opening of the valve in real time, so as to transmit the position information of the valve to the background control system to uniformly manage the state of the valve. Generally, the valve detection device can be connected to the valve stem of the valve, and the position information of the valve stem is monitored by the valve detection device, so as to judge the opening of the valve.

[0040] However, there are many types of valves in general application, and the valve detection device is difficult to be compatible with many types of valves. In order to realize the state detection of various types of valves, different types of valve detection devices need to be set. When producing the valve detection device, various types of parts corresponding to the valve detection device need to be manufactured, and the manufacturing process is complicated and the manufacturing cost is high.

[0041] Therefore, in order to reduce the manufacturing cost of the valve detection device, the valve detection device provided by the embodiments of the present application comprises a shaft assembly, a detection assembly and an adjustable support. The shaft assembly is used for detachably mounting on a valve rod. The detection assembly comprises a shell and a detection part. The detection part is rotatably arranged on the shell along an axis extending in a first direction. The detection part is detachably connected to the shaft assembly. The detection assembly is configured to detect the rotation angle of the shaft assembly when the detection part rotates with the shaft assembly. The shell is detachably mounted on the adjustable support. The adjustable support is used for detachably mounting on a valve body to fix the shell and the valve body.

[0042] In the valve detection device, the detection part is detachably connected to the shaft assembly, and the shaft assembly can be detachably connected to the valve rod. Therefore, the shaft assembly of the valve detection device is a replaceable part. When facing different types of valves, the shaft assembly of the valve detection device can be replaced to adapt the valve detection device to the corresponding type of valve. Therefore, the replacement of the parts of the valve detection device can be reduced, and the compatibility of other parts of the valve detection device can be improved.

[0043] The valve detection device and the valve assembly using the valve detection device will be described in detail below with reference to the accompanying drawings.

[0044] Please refer to Figure 1 and Figure 2 , Figure 1 the structure diagram of the valve assembly 100 provided by some embodiments of the present application; Figure 2 the structure diagram of the valve 20 provided by some embodiments of the present application. The valve assembly 100 provided by the embodiments of the present application comprises a valve 20 and a valve detection device 10. The valve 20 comprises a valve body 202 and a valve rod 201. The valve rod 201 is rotatably arranged on the valve body 202 along the axis of the valve rod 201.

[0045] The valve body 202 of the valve 20 is connected with a pipeline which needs to be controlled to be opened or closed. One end of the valve stem 201 of the valve 20 is inserted into the valve body 202. The opening degree of the valve 20 is controlled by controlling the position of the valve stem 201 in the valve body 202. The other end of the valve stem 201 is located outside the valve body 202. The opening degree of the valve 20 can be adjusted by rotating the end of the valve stem 201 which is located outside the valve body 202. The valve stem 201 can only rotate around its own axis. The valve stem 201 rotates in the valve body 202 to adjust the opening degree of the valve 20. Alternatively, the valve stem 201 rotates around its own axis and moves along the axis of the valve stem 201 at the same time. The valve stem 201 moves along the axis of the valve stem 201 in the valve body 202 to adjust the opening degree of the valve 20. The valve detection device 10 is connected with the valve body 202 and the valve stem 201. The valve detection device 10 detects the rotation angle of the valve stem 201 relative to the valve body 202 to determine the opening degree of the valve 20.

[0046] In some embodiments, the valve 20 further comprises a rotating wheel (not shown in the figure) which is connected with the valve stem 201. The rotating wheel is used to drive the valve stem 201 to rotate around its own axis.

[0047] In some embodiments, the valve stem 201 comprises a first part (not shown in the figure) and a second part 2011. The first part is located in the valve body 202 and can rotate in the valve body 202. The second part 2011 is located outside the valve body 202. The second part 2011 is used to cooperate with the rotating wheel to drive the valve stem 201 to rotate when the rotating wheel rotates.

[0048] In some embodiments, the valve 20 further comprises a valve core (not shown in the figure) which is located in the valve body 202 and connected with the first part. The valve core has a first state in which the valve 20 is opened and a second state in which the valve 20 is closed. The valve core is switched between the first state and the second state by driving the valve core to rotate in the valve body 202 by the first part.

[0049] Please refer to Figure 3 and Figure 4 , Figure 3 the structural schematic diagram of the valve detection device 10 provided in some embodiments of the present application; Figure 4 for Figure 3A-A cross-sectional view. The valve detection device 10 provided by the embodiments of the present application comprises a shaft assembly 1, a detection assembly 2, and an adjustable support 3. The shaft assembly 1 is used to be detachably mounted on a valve stem 201; the detection assembly 2 comprises a shell 21 and a detection part 22, the detection part 22 is rotatably arranged on the shell 21 along an axis extending in a first direction Z, the detection part 22 is detachably connected to the shaft assembly 1, and the detection assembly 2 is configured to detect the rotation angle of the shaft assembly 1 when the detection part 22 rotates following the shaft assembly 1; the shell 21 is detachably mounted on the adjustable support 3, and the adjustable support 3 is used to be detachably mounted on a valve body 202 to fix the shell 21 and the valve body 202.

[0050] The shaft assembly 1 is used to be detachably connected to the valve stem 201. The shaft assembly 1 can be matched with the second part 2011 of the valve stem 201 to realize the detachable connection of the shaft assembly 1 and the valve stem 201. The shaft assembly 1 and the valve stem 201 can be detachably connected through a locking accessory, which can be a bolt; or the shaft assembly 1 and the valve stem 201 can be clamped; or the shaft assembly 1 is sleeved on the valve stem 201, and the shaft assembly 1 is circumferentially locked with the valve stem 201. After the shaft assembly 1 is connected with the valve stem 201, the shaft assembly 1 and the valve stem 201 can rotate synchronously.

[0051] The detection assembly 2 is used to detect the rotation angle of the shaft assembly 1, and the rotation angle of the valve stem 201 is determined according to the rotation angle of the shaft assembly 1. The detection part 22 of the detection assembly 2 is detachably connected with the shaft assembly 1, which can be detachably connected with the shaft assembly 1 through a bolt; or the detection part 22 and the shaft assembly 1 can be clamped. The detection part 22 is arranged on the shell 21, and the detection part 22 can rotate relative to the shell 21. When the shell 21 is fixed with the valve body 202, the detection part 22 is relatively stationary with the valve body 202 along the first direction Z. The detection part 22 can rotate relative to the shell 21 along the axis extending in the first direction Z, so that the detection assembly 2 detects the rotation angle of the detection part 22; wherein, when the valve detection device 10 is mounted on the valve 20, the first direction Z can be parallel to the extension direction of the valve stem 201, i.e. the extension direction of the valve stem 201 along its own axis is parallel to the first direction Z. The detection part 22 rotates synchronously with the shaft assembly 1, and the shaft assembly 1 rotates synchronously with the valve stem 201, so the rotation angle of the detection part 22 is the rotation angle of the valve stem 201.

[0052] The adjustable support 3 is detachably connected with the shell 21, which can be clamped, inserted, fastened, etc. with the shell 21, wherein the fastener can be a bolt. The adjustable support 3 can connect the valve body 202 and the shell 21, so that the shell 21 can be fixed with the valve body 202. It is worth noting that the valve 20 applicable to the present application is a valve 20 whose valve stem 201 can only rotate around its own axis. The shaft assembly 1 can be adjusted according to the model of the valve stem 201 of the valve 20, so that the valve detection device 10 is adapted to the valve 20.

[0053] In the embodiments of the present application, the detection part 22 is detachably connected to the shaft assembly 1, and the shaft assembly 1 is detachably connected to the valve rod 201, so that the shaft assembly 1 of the valve detection device 10 is a replaceable part. When facing different types of valves 20, the shaft assembly 1 of the valve detection device 10 can be replaced to adapt the valve detection device 10 to the corresponding type of valve 20, thereby reducing the replacement of parts of the valve detection device 10 and improving the compatibility of other parts of the valve detection device 10. The adjustable bracket 3 is detachably mounted on the valve body 202, and the adjustable bracket 3 can fix the valve detection device 10 on the valve body 202 to realize the assembly of the valve body 202 and the valve detection device 10. The detection assembly 2 is configured to detect the rotation angle of the shaft assembly 1 when the detection part 22 rotates with the shaft assembly 1, so that the valve detection device 10 can be applied to ball valves, butterfly valves and other valves 20 that are opened and closed by rotation, thereby improving the compatibility of the valve detection device 10 and reducing the manufacturing cost of the valve detection device 10.

[0054] In some embodiments, the detection assembly 2 further comprises a detection circuit board, a sensing element and a detection piece inducted by the sensing element; the detection circuit board is arranged in the housing 21; the sensing element is arranged in the detection part 22 to rotate with the detection part 22; the detection piece is arranged on the detection circuit board; when the valve rod 201 rotates, the shaft assembly 1 drives the detection part 22 to rotate, thereby driving the sensing element to rotate in the housing 21. The sensing element and the detection piece generate induction, the detection piece sends a signal to the detection circuit board, wakes up the detection circuit board, so that the detection circuit board can receive the detection signal sent by the detection part 22, and further detect the process state of the valve 20.

[0055] In some embodiments, please refer to Figure 4 and Figure 5 , Figure 5 The exploded view of the shaft assembly 1 provided in some embodiments of the present application. The shaft assembly 1 comprises a shaft body 11 and a first limiting piece 12. The shaft body 11 extends along a first direction Z, and the detection part 22 is detachably connected to the shaft body 11. The first limiting piece 12 is detachably connected to the shaft body 11, and the first limiting piece 12 is provided with a limiting hole 121 for cooperating with the valve rod 201 to circumferentially lock the shaft body 11 and the valve rod 201.

[0056] The shaft body 11 and the detection part 22 are detachably connected, which can be clamped, sleeved or fastened by a fastener. The fastener can be a bolt.

[0057] The first limiting piece 12 is detachably connected with the shaft body 11, which can be clamped, sleeved or fastened with the shaft body 11; wherein the fastener can be a bolt. Exemplarily, the shaft body 11 is provided with a first limiting groove adapted to the first limiting piece 12 at one end along the first direction Z, the first limiting piece 12 is clamped in the first limiting groove, and the first limiting groove is locked circumferentially with the first limiting piece 12.

[0058] The limiting hole 121 is shaped to be adapted to the valve rod 201, so that the limiting hole 121 can cooperate with the valve rod 201. Exemplarily, the second part 2011 of the valve rod 201 is in a square structure, and the limiting hole 121 is a square hole, the hole wall surface of the limiting hole 121 abuts against the outer side wall of the second part 2011, so as to axially lock the shaft body 11 and the valve rod 201.

[0059] In the embodiment, the first limiting piece 12 is detachably connected with the shaft body 11, when the first limiting piece 12 is damaged, the first limiting piece 12 can be replaced to prolong the service life of the shaft body 11. The limiting hole 121 is provided on the first limiting piece 12 to cooperate with the valve rod 201, the limiting hole 121 can circumferentially lock the shaft body 11 and the valve rod 201, so that the shaft body 11 can drive the valve 20 to rotate around the axis extending along the first direction Z, thereby realizing the rotation angle detection of the valve rod 201 by the detection assembly 2. When facing different models of valves 20, only the model of the first limiting piece 12 needs to be replaced, so that the limiting hole 121 of the first limiting piece 12 is adapted to the valve rod 201 of the corresponding model valve 20, so that the valve detection device 10 is adapted to the corresponding model valve 20, thereby improving the compatibility of the valve detection device 10 and reducing the manufacturing cost of the valve detection device 10.

[0060] In some embodiments, please continue to refer to Figure 5 The first limiting piece 12 is located at one end of the shaft body 11 along the first direction Z, the shaft body 11 is provided with a clamping protrusion 115 at the end facing the first limiting piece 12 along the first direction Z, the first limiting piece 12 is provided with a clamping groove 122, and the clamping protrusion 115 is clamped in the clamping groove 122 to circumferentially lock the first limiting piece 12 and the shaft body 11.

[0061] The first limiting piece 12 is located at the end of the shaft body 11 facing the valve body 202.

[0062] The card protrusion 115 can be one, and the card protrusion 115 is matched with one card slot 122, the wall surface of the card protrusion 115 abuts against the slot wall surface of the card slot 122, so that the first limiting piece 12 and the shaft body 11 are circumferentially locked. The card protrusion 115 can also be multiple, and can be one-to-one correspondence between the card protrusion 115 and the card slot 122, so that the first limiting piece 12 and the shaft body 11 are circumferentially locked. The first limiting piece 12 and the shaft body 11 are circumferentially locked, that is, the first limiting piece 12 and the shaft body 11 cannot rotate relative to the axis extending in the first direction Z.

[0063] Exemplarily, as shown in Figure 5 , the card protrusion 115 is two, and the two card protrusions 115 are oppositely arranged, the first limiting piece 12 has two oppositely arranged card slots 122, and the two card protrusions 115 are correspondingly arranged in the two card slots 122 to circumferentially lock the first limiting piece 12 and the shaft body 11.

[0064] In the embodiment, through the cooperation of the card protrusion 115 and the card slot 122 of the first limiting piece 12, the card protrusion 115 can drive the first limiting piece 12 to rotate around the axis extending in the first direction Z, realizing the circumferential locking of the first limiting piece 12 and the shaft body 11, so that the connection of the first limiting piece 12 and the shaft body 11 is more convenient, and the assembly difficulty is low.

[0065] In some embodiments, please refer to Figure 4 , Figure 6 and Figure 7 , Figure 6 the cross-sectional view of the shaft assembly 1 provided by some embodiments of the application; Figure 7 the exploded view of the shaft assembly 1 provided by some embodiments of the application. The shaft body 11 has a first end 111 and a second end 112 opposite in the first direction Z, and the first limiting piece 12 is arranged at the first end 111; the shaft assembly 1 further comprises a second limiting piece 13, which is detachably connected to the detection part 22, and the second limiting piece 13 is configured to limit the movement of the shaft body 11 in the direction from the first end 111 to the second end 112.

[0066] In the embodiment that the shaft body 11 is provided with the card protrusion 115, the card protrusion 115 is located at the first end 111.

[0067] The second limiting piece 13 is detachably connected with the detection part 22, which can be clamped, sleeved, inserted or fastened with the detection part 22, wherein the fastener can be a bolt.

[0068] The second limiting part 13 can be connected to the second end 112 of the shaft body 11 to limit the movement of the shaft body 11 in the direction from the first end 111 to the second end 112, or a part of the orthographic projection of the second limiting part 13 can overlap a part of the orthographic projection of the shaft body 11 in the projection plane perpendicular to the first direction Z, and the projection overlapping part of the shaft body 11 is located between the second limiting part 13 and the valve body 202, so that the second limiting part 13 can limit the movement of the shaft body 11 in the direction from the first end 111 to the second end 112.

[0069] In the embodiment, the second limiting part 13 can limit the movement of the shaft body 11, thereby limiting the first limiting part 12 from being detached from the valve stem 201 in the direction from the first end 111 to the second end 112, and improving the assembly stability of the valve detection device 10 and the valve 20.

[0070] In some embodiments, please continue to refer to Figure 4 , Figure 6 and Figure 7 . The second limiting part 13 is sleeved on the shaft body 11 and is locked in the circumferential direction with the shaft body 11.

[0071] Exemplarily, as shown in Figure 7 , the shaft body 11 has a second end 112 for cooperating with the rotating wheel, the second end 112 is provided with a recessed groove 1121, the second limiting part 13 has a first through hole 131, the second end 112 is arranged in the recessed groove 1121, and the groove wall surface of the recessed groove 1121 abuts against the hole wall surface of the first through hole 131, so that the shaft assembly 1 can drive the second limiting part 13 to rotate, thereby driving the detection part 22 to rotate. The second limiting part 13 has a first surface facing the first end 111, and the groove bottom wall of the recessed groove 1121 abuts against the first surface, so that the second limiting part 13 can limit the movement of the shaft body 11 in the direction from the first end 111 to the second end 112.

[0072] In the embodiment, the shaft body 11 of the second limiting part 13 is more convenient to disassemble and assemble, thereby reducing the assembly difficulty of the second limiting part 13. The second limiting part 13 not only can limit the movement of the shaft body 11 in the direction from the first end 111 to the second end 112, but also can be locked in the circumferential direction with the shaft body 11, which is ingenious in structure and has strong practicability.

[0073] In some embodiments, the shaft body 11 comprises a first shaft part 113 and a second shaft part 114; the second limiting part 13 is sleeved on the first shaft part 113 and is locked in the circumferential direction with the first shaft part 113; the second shaft part 114 is connected to the first shaft part 113, one end of the second shaft part 114 away from the first shaft part 113 is the first end 111, one end of the first shaft part 113 away from the second shaft part 114 is the second end 112, the first limiting part 12 is detachably connected to the second shaft part 114, and the second shaft part 114 is detachably connected to the first shaft part 113.

[0074] The first shaft part 113 and the second shaft part 114 can be integrally formed; or the first shaft part 113 and the second shaft part 114 can be separately arranged and connected. Exemplarily, the shaft assembly 1 further comprises a first locking pin 14, the first shaft part 113 and the second shaft part 114 are respectively provided with a first locking hole 1131 and a second locking hole 1141, and the locking pin is arranged in the first locking hole 1131 and the second locking hole 1141 to detachably connect the first shaft part 113 and the second shaft part 114.

[0075] By sleeving the second limiting part 13 on the first shaft part 113 and connecting the first limiting part 12 to the second shaft part 114, the risk of interference between the second limiting part 13 and the first limiting part 12 can be reduced. By detachably connecting the first shaft part 113 and the second shaft part 114, the disassembly and replacement of the shaft assembly 1 and the second shaft part 114 are facilitated, the service life of the first shaft part 113 or the second shaft part 114 of the shaft assembly 1 is improved, and the use cost of the valve detection device 10 is reduced.

[0076] In some embodiments, the first shaft part 113 comprises a connecting head 1132 and a connecting rod 1133 for cooperating with the second limiting part 13, and the connecting rod 1133 connects the connecting head 1132 and the second shaft part 114. The connecting rod 1133 and the connecting head 1132 are pinned by a second locking pin 1134. The first locking hole 1131 is arranged on the connecting rod 1133. The sink groove 1121 is arranged on the connecting head 1132.

[0077] In some embodiments, please refer to Figure 4 and Figure 8 , Figure 8 the exploded view of the adjustable support 3 provided in some embodiments of the present application. The adjustable support 3 comprises a mounting assembly 31 and a clamping assembly 32. The mounting assembly 31 is detachably connected with the housing 21. The clamping assembly 32 is connected to the mounting assembly 31, and the clamping assembly 32 is used to clamp the valve body 202.

[0078] The mounting assembly 31 can be inserted, pinned, sleeved, fastened with the housing 21, etc., wherein the fastener can be a bolt. The clamping assembly 32 can be fixedly connected with the mounting assembly 31, such as being welded to the mounting assembly 31; or the clamping assembly 32 can be detachably connected with the mounting assembly 31, such as being connected by a bolt.

[0079] By detachably connecting the mounting assembly 31 and the housing 21, the disassembly and replacement of the detection assembly 2 are facilitated. By connecting the mounting assembly 31 and the valve body 202 through the clamping assembly 32, the installation of the detection assembly 2 and the valve 20 is realized, and the assembly difficulty of the detection assembly 2 and the valve 20 is reduced.

[0080] In some embodiments, please continue to refer toFigure 8 The mounting assembly 31 comprises a first mounting bracket 311 and a second mounting bracket 312, both of which are detachably connected with the housing 21, and both of which are located at two sides of the shaft assembly 1 along a second direction X intersecting with the first direction Z; the clamping assembly 32 comprises a first clamping piece 321, a second clamping piece 322 and an adjusting piece 323, the first clamping piece 321 and the second clamping piece 322 are used for cooperating to clamp the valve body 202, the first clamping piece 321 is adjustably arranged on the first mounting bracket 311 along the second direction X, the second clamping piece 322 is adjustably arranged on the second mounting bracket 312 along the second direction X, and the adjusting piece 323 is connected with the first clamping piece 321 and the second clamping piece 322, and is used for adjusting the distance between the first clamping piece 321 and the second clamping piece 322 along the second direction X.

[0081] The first mounting bracket 311 and the second mounting bracket 312 can be integrally formed or separately arranged. Both of them can be inserted, bolted or sleeved with the housing 21.

[0082] The first direction Z and the second direction X can be an acute angle, a right angle or an obtuse angle. Exemplarily, the first direction Z and the second direction X are perpendicular.

[0083] The adjusting piece 323 can be a clamp, a lock pin, a bolt or the like. There can be one or more adjusting pieces 323, and in the embodiment of multiple adjusting pieces 323, each adjusting piece 323 is used for adjusting the distance between the first clamping piece 321 and the second clamping piece 322.

[0084] By arranging the first mounting bracket 311 and the second mounting bracket 312 to be connected with the housing 21, the mounting between the housing 21 and the valve body 202 is more stable, and the assembly stability of the detection assembly 2 and the valve body 202 is improved. By adjusting the distance between the first clamping piece 321 and the second clamping piece 322 through the adjusting piece 323, the first clamping piece 321 and the second clamping piece 322 can clamp valve bodies 202 of different sizes, so that the valve detection device 10 can be applicable to various models of valves 20, improve the compatibility of the valve detection device 10, and reduce the production cost of the valve detection device 10.

[0085] In some embodiments, the adjustable support 3 further comprises a first locking piece 35 configured to unlockably lock the first mounting bracket 311 and the first clamping piece 321.

[0086] The first locking piece 35 can be directly connected with the first mounting bracket 311 and the first clamping piece 321, or indirectly connected with the first mounting bracket 311 and the first clamping piece 321.

[0087] In the embodiment, the connection between the first mounting frame 311 and the first clamping piece 321 is more stable, and the disassembly of the first mounting frame 311 and the first clamping piece 321 is more convenient.

[0088] In some embodiments, the adjustable support 3 further comprises a second locking piece 36 configured to unlockably lock the second mounting frame 312 and the second clamping piece 322.

[0089] The second locking piece 36 can be directly connected with the second mounting frame 312 and the second clamping piece 322, or indirectly connected with the second mounting frame 312 and the second clamping piece 322.

[0090] In the embodiment, the connection between the second mounting frame 312 and the second clamping piece 322 is more stable, and the disassembly of the second mounting frame 312 and the second clamping piece 322 is more convenient.

[0091] In some embodiments, the adjustable support 3 further comprises a first locking piece 35 configured to unlockably lock the first mounting frame 311 and the first clamping piece 321. The adjustable support 3 further comprises a second locking piece 36 configured to unlockably lock the second mounting frame 312 and the second clamping piece 322.

[0092] In the embodiment, the first mounting frame 311 and the first clamping piece 321 are unlockably locked by the first locking piece 35, and the second mounting frame 312 and the second clamping piece 322 are unlockably locked by the second locking piece 36, so that the assembly of the adjustable support 3 and the clamping assembly 32 is more stable, the disassembly is more convenient, and the assembly stability of the valve detection device 10 and the valve body 202 is improved.

[0093] In some embodiments, the adjustable support 3 further comprises a first mounting seat 33 and a second mounting seat 34, the first mounting seat 33 connects the first mounting frame 311 and the first clamping piece 321, the first locking piece 35 connects the first mounting frame 311 and the first mounting seat 33, the second mounting seat 34 connects the second mounting frame 312 and the second clamping piece 322, and the second locking piece 36 connects the second mounting frame 312 and the second mounting seat 34.

[0094] In some embodiments, the first mounting seat 33 is provided with a first waist-shaped hole extending along the second direction X, the second mounting seat 34 is provided with a second waist-shaped hole extending along the second direction X, the first mounting frame 311 and the second mounting frame 312 are respectively provided with a first mounting hole and a second mounting hole, the first locking piece 35 passes through the first mounting hole and the first waist-shaped hole to lock the first mounting seat 33 and the first mounting frame 311, and the second locking piece 36 passes through the second mounting hole and the second waist-shaped hole to lock the second mounting seat 34 and the second mounting frame 312. In this way, the distance between the first mounting seat 33 and the second mounting seat 34 along the second direction X can be adjusted, which is beneficial to the installation of the valve detection device 10 in the face of valve bodies 202 of different sizes.

[0095] The valve assembly 100 provided by the embodiments of the present application comprises the valve 20 and the valve detection device 10 provided by any one of the above embodiments. The valve 20 comprises a valve body 202 and a valve stem 201, and the valve stem 201 is rotatably arranged on the valve body 202 along an axis of the valve stem 201. The shaft assembly 1 is detachably connected to the valve stem 201, and the adjustable bracket 3 is detachably connected to the valve body 202.

[0096] Please continue to refer to Figures 3-8The embodiment of the present application provides a valve detection device 10, which comprises a shaft assembly 1, a detection assembly 2 and an adjustable support 3. The shaft assembly 1 comprises a shaft body 11 and a first limiting piece 12; the shaft body 11 extends along a first direction Z. The first limiting piece 12 is detachably connected to the shaft body 11, and the first limiting piece 12 is provided with a limiting hole 121, which is used for cooperating with a valve rod 201 to circumferentially lock the shaft body 11 and the valve rod 201. The detection assembly 2 comprises a shell 21 and a detection part 22; the detection part 22 is rotatably arranged on the shell 21 along an axis extending in the first direction Z, and the detection part 22 is detachably connected to the shaft body 11; the detection assembly 2 is configured to detect a rotation angle of the shaft assembly 1 when the detection part 22 rotates with the shaft assembly 1. The adjustable support 3 comprises a mounting assembly 31 and a clamping assembly 32; the mounting assembly 31 is detachably connected to the shell 21; the clamping assembly 32 is connected to the mounting assembly 31, and the clamping assembly 32 is used for clamping a valve body 202. The mounting assembly 31 comprises a first mounting bracket 311 and a second mounting bracket 312; the first mounting bracket 311 and the second mounting bracket 312 are both detachably connected to the shell 21; the first mounting bracket 311 and the second mounting bracket 312 are respectively located on two sides of the shaft assembly 1 along a second direction X, and the second direction X intersects with the first direction Z; the clamping assembly 32 comprises a first clamping piece 321, a second clamping piece 322 and an adjusting piece 323; the first clamping piece 321 and the second clamping piece 322 are used for cooperatively clamping the valve body 202; the first clamping piece 321 is adjustably arranged on the first mounting bracket 311 along the second direction X; the second clamping piece 322 is adjustably arranged on the second mounting bracket 312 along the second direction X; the adjusting piece 323 is connected to the first clamping piece 321 and the second clamping piece 322, and the adjusting piece 323 is used for adjusting a distance between the first clamping piece 321 and the second clamping piece 322 along the second direction X. The adjustable support 3 further comprises a first locking piece 35 and a second locking piece 36; the first locking piece 35 is configured to unlockably lock the first mounting bracket 311 and the first clamping piece 321; and the second locking piece 36 is configured to unlockably lock the second mounting bracket 312 and the second clamping piece 322.

[0097] The detection part 22 is detachably connected to the shaft assembly 1, and the shaft assembly 1 can be detachably connected to the valve rod 201, so that the shaft assembly 1 of the valve detection device 10 is a replaceable part. When facing different types of valves 20, the shaft assembly 1 of the valve detection device 10 can be replaced to adapt the valve detection device 10 to the corresponding type of valve 20, thereby reducing the replacement of parts of the valve detection device 10 and improving the compatibility of other parts of the valve detection device 10. The adjustable support 3 is detachably mounted on the valve body 202, and the adjustable support 3 can fix the valve detection device 10 on the valve body 202 to realize the assembly of the valve body 202 and the valve detection device 10. The detection assembly 2 is configured to detect the rotation angle of the shaft assembly 1 when the detection part 22 follows the rotation of the shaft assembly 1, so that the valve detection device 10 can be applied to ball valves, butterfly valves and other valves 20 that are opened and closed by rotation, thereby improving the compatibility of the valve detection device 10 and reducing the manufacturing cost of the valve detection device 10. The first limiting piece 12 is detachably connected to the shaft body 11. When the first limiting piece 12 is damaged, the first limiting piece 12 can be replaced to prolong the service life of the shaft body 11. The limiting hole 121 on the first limiting piece 12 is used to cooperate with the valve rod 201. The limiting hole 121 can realize the circumferential locking of the shaft body 11 and the valve rod 201, so that the shaft body 11 can drive the valve 20 to rotate around the axis extending in the first direction Z, and then realize the rotation angle detection of the valve rod 201 by the detection assembly 2. When facing different types of valves 20, only the type of the first limiting piece 12 needs to be changed to adapt the limiting hole 121 of the first limiting piece 12 to the valve rod 201 of the corresponding type of valve 20, so that the valve detection device 10 is adapted to the corresponding type of valve 20, thereby improving the compatibility of the valve detection device 10 and reducing the manufacturing cost of the valve detection device 10. The first mounting bracket 311 and the second mounting bracket 312 are connected to the housing 21, so that the installation between the housing 21 and the valve body 202 is more stable, and the assembly stability of the detection assembly 2 and the valve body 202 is improved. The distance between the first clamping piece 321 and the second clamping piece 322 is adjusted by the adjusting piece 323, so that the first clamping piece 321 and the second clamping piece 322 can clamp valve bodies 202 of different sizes, so that the valve detection device 10 can be applied to various types of valves 20, thereby improving the compatibility of the valve detection device 10 and reducing the production cost of the valve detection device 10. The first locking piece 35 and the second locking piece 36 are provided, so that the assembly of the adjustable support 3 and the clamping assembly 32 is more stable, the disassembly and assembly are more convenient, and the assembly stability of the valve detection device 10 and the valve body 202 is improved.

[0098] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0099] The above examples are only used to illustrate the technical solutions of the present application, and are not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve detection device (10), wherein the valve (20) comprises a valve body (202) and a valve stem (201), wherein the valve stem (201) is rotatably arranged on the valve body (202) along its own axis, characterized in that: include: A shaft assembly (1) for being detachably mounted on the valve stem (201); A detection assembly (2) comprises a housing (21) and a detection portion (22), wherein the detection portion (22) is rotatably disposed on the housing (21) around an axis extending along a first direction (Z), and the detection portion (22) is detachably connected to the shaft assembly (1). The detection assembly (2) is configured to detect a rotation angle of the shaft assembly (1) when the detection portion (22) rotates following the shaft assembly (1); An adjustable bracket (3), the housing (21) is detachably mounted on the adjustable bracket (3), and the adjustable bracket (3) is used to be detachably mounted on the valve body (202) to fix the housing (21) and the valve body (202).

2. The valve detection device (10) according to claim 1, characterized in that: The shaft assembly (1) comprises: A shaft body (11) extends along the first direction (Z), and the detection portion (22) is detachably connected to the shaft body (11); A first limiting member (12) is detachably connected to the shaft body (11), and the first limiting member (12) is provided with a limiting hole (121), and the limiting hole (121) is used to cooperate with the valve stem (201) to circumferentially lock the shaft body (11) and the valve stem (201).

3. The valve detection device (10) according to claim 2, characterized in that: The first limiting member (12) is located at one end of the shaft body (11) along the first direction (Z), and a locking protrusion (115) is provided at one end of the shaft body (11) facing the first limiting member (12) along the first direction (Z). The first limiting member (12) is provided with a locking groove (122), and the locking protrusion (115) is locked in the locking groove (122) to circumferentially lock the first limiting member (12) and the shaft body (11).

4. The valve detection device (10) according to claim 2, characterized in that: The shaft body (11) has a first end (111) and a second end (112) opposite to each other along the first direction (Z), and the first limiting member (12) is arranged at the first end (111); The shaft assembly (1) further comprises a second limiting member (13), the second limiting member (13) being detachably connected to the detection portion (22), and the second limiting member (13) being configured to limit movement of the shaft body (11) in a direction from the first end (111) to the second end (112).

5. The valve detection device (10) according to claim 4, characterized in that: The second limiting member (13) is sleeved on the shaft body (11) and is circumferentially locked with the shaft body (11).

6. The valve detection device (10) according to claim 5, characterized in that: The shaft body (11) comprises: A first shaft portion (113), wherein the second limiting member (13) is sleeved on the first shaft portion (113) and circumferentially locked with the first shaft portion (113); The second shaft portion (114) is connected to the first shaft portion (113); the end of the second shaft portion (114) away from the first shaft portion (113) is the first end (111); the end of the first shaft portion (113) away from the second shaft portion (114) is the second end (112); the first limiting member (12) is detachably connected to the second shaft portion (114); and the second shaft portion (114) is detachably connected to the first shaft portion (113).

7. The valve detection device (10) according to any one of claims 1 to 6, characterized in that: The adjustable bracket (3) comprises: a mounting assembly (31) detachably connected to the housing (21); A clamping assembly (32) is connected to the mounting assembly (31), and the clamping assembly (32) is used to clamp the valve body (202).

8. The valve detection device (10) according to claim 7, characterized in that: The mounting assembly (31) comprises a first mounting frame (311) and a second mounting frame (312), both of which are detachably connected to the housing (21), and the first mounting frame (311) and the second mounting frame (312) are respectively located on two sides of the shaft assembly (1) along a second direction (X), and the second direction (X) intersects with the first direction (Z); The clamping assembly (32) includes a first clamping member (321), a second clamping member (322) and an adjusting member (323), wherein the first clamping member (321) and the second clamping member (322) are used to cooperate to clamp the valve body (202), the first clamping member (321) is adjustably arranged on the first mounting frame (311) along the second direction (X), the second clamping member (322) is adjustably arranged on the second mounting frame (312) along the second direction (X), the adjusting member (323) connects the first clamping member (321) and the second clamping member (322), and the adjusting member (323) is used to adjust the distance between the first clamping member (321) and the second clamping member (322) along the second direction (X).

9. The valve detection device (10) according to claim 8, characterized in that: The adjustable bracket (3) further includes a first locking member (35), the first locking member (35) being configured to unlockably lock the first mounting bracket (311) and the first clamping member (321); and / or, the adjustable bracket (3) further includes a second locking member (36), the second locking member (36) being configured to unlockably lock the second mounting bracket (312) and the second clamping member (322).

10. A valve assembly (100), characterized in that: include: A valve (20) comprises a valve body (202) and a valve stem (201), wherein the valve stem (201) is rotatably arranged on the valve body (202) along its own axis; According to the valve detection device (10) according to any one of claims 1 to 9, the shaft assembly (1) is detachably connected to the valve stem (201), and the adjustable bracket (3) is detachably connected to the valve body (202).

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