Valve detection device

Abstract

The utility model provides a valve detection device which comprises an actuator assembly and a valve, and the actuator assembly comprises an actuator and a temperature detection head; the temperature detection head is connected to the actuator, so that the temperature sensor and the actuator are integrally arranged, and the integration level of the temperature sensor and the actuator is improved; the valve is arranged on one side of the actuator assembly; the valve is connected to the actuator; the valve is provided with an in-valve temperature measuring bin; when the actuator is connected with the valve, the temperature detection head is inserted into the valve and located in the in-valve temperature measurement bin so as to detect the temperature in the in-valve temperature measurement bin, so that the temperature in the in-valve temperature measurement bin can be detected by the temperature detection head while the actuator and the valve are assembled, and the detection convenience of the temperature detection head to the in-valve temperature measurement bin is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for a valve. Background Art

[0002] With the development of technology, a valve is a device used to control fluids and is widely applied in various fields such as industrial production, municipal construction, and the energy field. In the prior art, the existing valve is provided with a separate hole at the bottom of the valve body to support the external insertion of a temperature detection head, so that the external temperature detection head can detect the temperature in the temperature measurement chamber inside the valve. However, it is impossible to realize the temperature detection head detecting the temperature in the temperature measurement chamber inside the valve while the actuator and the valve are assembled, resulting in poor detection convenience of the existing temperature detection head for the temperature in the temperature measurement chamber inside the valve. Content of the Utility Model

[0003] The purpose of the utility model is to provide a detection device for a valve. The actuator assembly includes an actuator and a temperature detection head; the temperature detection head is connected to the actuator, realizing an integrated arrangement of the temperature sensor and the actuator, and improving the integration degree of the temperature sensor and the actuator; the valve is arranged on one side of the actuator assembly; the valve is connected to the actuator; the valve is provided with a temperature measurement chamber inside the valve; when the actuator is connected to the valve, the temperature detection head is inserted into the valve and is located inside the temperature measurement chamber inside the valve to detect the temperature in the temperature measurement chamber inside the valve, so as to realize the temperature detection head detecting the temperature in the temperature measurement chamber inside the valve while the actuator and the valve are assembled, and improving the detection convenience of the temperature detection head for the temperature in the temperature measurement chamber inside the valve.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A detection device for a valve, comprising:

[0006] An actuator assembly, including an actuator and a temperature detection head; the temperature detection head is connected to the actuator;

[0007] A valve, arranged on one side of the actuator assembly; the valve is connected to the actuator; the valve is provided with a temperature measurement chamber inside the valve;

[0008] When the actuator is connected to the valve, the temperature detection head is inserted into the valve and is located inside the temperature measurement chamber inside the valve to detect the temperature in the temperature measurement chamber inside the valve.

[0009] Optionally, the valve is connected with a hollow rotating shaft for the temperature detection head to be inserted; the temperature measurement chamber inside the valve is located inside the hollow rotating shaft and is used to accommodate the temperature detection head inserted into the hollow rotating shaft.

[0010] Optionally, the hollow rotating shaft extends into the ball core of the valve;

[0011] The hollow rotating shaft is rotatably connected to the valve and rotates along the axis of the hollow rotating shaft.

[0012] Optionally, a seal is provided between the hollow rotating shaft and the valve.

[0013] The seal is sleeved on the hollow rotating shaft and is sealingly connected to the valve.

[0014] Optionally, the actuator includes an actuator body and a rotating shaft; the rotating shaft is rotatably connected to the actuator body; the temperature detection head is connected to the rotating shaft.

[0015] When the actuator is connected to the valve, the rotating shaft is inserted into the hollow rotating shaft and drives the hollow rotating shaft and the temperature detection head to rotate.

[0016] Optionally, the hollow rotating shaft is provided with a socket groove; the rotating shaft is provided with a socket boss, and the socket boss is inserted into the socket groove, so that the hollow rotating shaft is relatively stationary with respect to the rotating shaft, and the hollow rotating shaft rotates with the rotation of the rotating shaft.

[0017] Optionally, the hollow rotating shaft is provided with a hollow hole.

[0018] The temperature detection head is located below the socket boss and passes through the hollow hole; the hollow hole is located in the temperature measurement chamber inside the valve.

[0019] Optionally, the actuator further includes a power member, and the power member is located between the actuator body and the rotating shaft and applies a rotational force to the rotating shaft.

[0020] Optionally, a detachable connection structure or an anti-disassembly connection structure is formed between the valve and the actuator.

[0021] Optionally, when an anti-disassembly connection structure is formed between the valve and the actuator, an anti-disassembly assembly is provided between the valve and the actuator, and the anti-disassembly assembly includes an anti-disassembly member and a nut; the anti-disassembly member is positioned and connected to the actuator; the nut is screwed onto the valve and rotates relative to the valve; the nut can be engaged with the anti-disassembly member during rotation and forms an anti-disassembly connection structure with the anti-disassembly member.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] The present utility model provides a detection device for a valve. The actuator assembly includes an actuator and a temperature detection head; the temperature detection head is connected to the actuator, realizing an integrated arrangement of the temperature sensor and the actuator, and improving the integration degree of the temperature sensor and the actuator; the valve is arranged on one side of the actuator assembly; the valve is connected to the actuator; the valve is provided with a temperature measurement chamber inside the valve; when the actuator is connected to the valve, the temperature detection head is inserted into the valve and is located inside the temperature measurement chamber inside the valve to detect the temperature inside the temperature measurement chamber inside the valve, so as to facilitate the assembly of the actuator and the valve while enabling the temperature detection head to detect the temperature inside the temperature measurement chamber inside the valve, and improving the detection convenience of the temperature detection head for the temperature inside the temperature measurement chamber inside the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

[0025] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals in the following description represent the same parts.

[0026] Figure 1 FIG. shows a schematic diagram of a detection device for a valve according to the utility model of the present application.

[0027] Figure 2 FIG. shows an exploded view of a detection device for a valve according to the utility model of the present application.

[0028] Figure 3 FIG. shows a cross-sectional view of a detection device for a valve according to the utility model of the present application.

[0029] Figure 4 FIG. shows a schematic diagram of an actuator assembly of a detection device for a valve according to the utility model of the present application.

[0030] Figure 5 FIG. shows a schematic diagram of a valve of a detection device for a valve according to the utility model of the present application.

[0031] Figure 6 FIG. shows a cross-sectional view of a valve of a detection device for a valve according to the utility model of the present application.

[0032] Figure 7 FIG. shows a schematic diagram of an anti-tampering assembly of a detection device for a valve according to the utility model of the present application.

[0033] Figure 8 FIG. shows a schematic diagram of an anti-tampering part of a detection device for a valve according to the utility model of the present application.

[0034] Figure 9 The figure shows a schematic diagram of a nut of a detection device for a valve according to the utility model of the present application.

[0035] Reference numerals

[0036] 100. Detection device for valve;

[0037] 10. Actuator assembly; 11. Actuator; 11a. Positioning groove; 111. Actuator body; 112. Rotating shaft; 113. Power member; 1121. Insertion boss; 12. Temperature detection head;

[0038] 20. Valve; 21. Temperature measurement chamber inside the valve; 22. Hollow rotating shaft; 22a. Insertion slot; 22b. Hollow hole; 23. Sealing member;

[0039] 30. Anti-disassembly component; 31. Anti-disassembly member; 311. Positioning portion; 312. First anti-disassembly portion; 313. Ring-shaped main body; 32. Nut; 321. Second anti-disassembly portion. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0041] Please refer to the atta Figures 1 to 3 , the present utility model provides a detection device 100 for a valve. The detection device 100 for the valve is applied to the valve 20, and the detection device 100 for the valve is used to detect the temperature of the temperature measurement chamber 21 inside the valve 20.

[0042] Please refer to the atta Figures 1 to 3 , in the embodiment of the present application, the detection device 100 for the valve includes an actuator assembly 10 and a valve 20. The valve 20 is disposed on the lower side of the actuator assembly 10. The actuator assembly 10 includes an actuator 11 and a temperature detection head 12; the temperature detection head 12 is connected to the actuator 11, realizing an integrated arrangement of the temperature sensor and the actuator 11, and improving the integration degree of the temperature sensor and the actuator 11; the valve 20 is disposed on one side of the actuator assembly 10; the valve 20 is connected to the actuator 11; the valve 20 is provided with a temperature measurement chamber 21 inside the valve; when the actuator 11 is connected to the valve 20, the temperature detection head 12 is inserted into the valve 20 and is located inside the temperature measurement chamber 21 inside the valve to detect the temperature inside the temperature measurement chamber 21 inside the valve, so as to facilitate the assembly of the actuator 11 and the valve 20 while realizing the temperature detection of the temperature inside the temperature measurement chamber 21 inside the valve by the temperature detection head 12, and improving the detection convenience of the temperature detection head 12 for the temperature inside the temperature measurement chamber 21 inside the valve.

[0043] Please refer to the appendix Figure 4 In the embodiment of the present application, the actuator assembly 10 includes an actuator 11 and a temperature detection head 12; the temperature detection head 12 is connected to the actuator 11; the temperature sensor and the actuator 11 are arranged integrally, improving the integration of the temperature sensor and the actuator 11.

[0044] Please refer to the appendix Figure 3 In the embodiment of the present application, the valve 20 is arranged on the lower side of the actuator assembly 10; the valve 20 is connected to the actuator 11, so as to facilitate the fixing of the valve 20 to the actuator 11, thereby facilitating the valve 20 to control the fluid situation of the actuator 11.

[0045] Please refer to the appendix Figures 5 to 6 At this time, the valve 20 is provided with an in-valve temperature measurement chamber 21; when the actuator 11 is connected to the valve 20, the temperature detection head 12 is inserted into the valve 20 and is in the in-valve temperature measurement chamber 21 to detect the temperature in the in-valve temperature measurement chamber 21, so as to facilitate the temperature detection head 12 to detect the temperature in the in-valve temperature measurement chamber 21 while the actuator 11 and the valve 20 are assembled, improving the detection convenience of the temperature detection head 12 for the temperature in the in-valve temperature measurement chamber 21.

[0046] Please refer to the appendix Figures 5 to 6 The valve 20 is connected with a hollow rotating shaft 22, and the hollow rotating shaft 22 is used for the temperature detection head 12 to be inserted, so as to facilitate the temperature detection head 12 to be inserted into the valve 20 through the hollow rotating shaft 22; the in-valve temperature measurement chamber 21 is in the hollow rotating shaft 22 and is used to accommodate the temperature detection head 12 inserted into the hollow rotating shaft 22, so as to facilitate the temperature detection head 12 to be in the in-valve temperature measurement chamber 21, thereby facilitating the temperature detection head 12 to detect the temperature in the in-valve temperature measurement chamber 21 while being inserted into the hollow rotating shaft 22, improving the detection convenience of the temperature detection head 12 for the temperature in the in-valve temperature measurement chamber 21.

[0047] Please refer to the appendix Figures 5 to 6 The hollow rotating shaft 22 extends into the ball core of the valve 20, and the lower end of the hollow rotating shaft 22 is in the ball core of the valve 20; the hollow rotating shaft 22 is rotatably connected to the valve 20 and rotates along the axis of the hollow rotating shaft 22, so as to facilitate adjusting the position of the hollow rotating shaft 22 relative to the valve 20. When the temperature detection head 12 is inserted into the hollow rotating shaft 22, it is convenient for the temperature detection head 12 to rotate relative to the valve 20, thereby facilitating the valve 20 to ensure the detection effect of the temperature detection head 12 during the installation process and preventing damage to the performance of the temperature detection head 12.

[0048] Please refer to the appendix Figures 5 to 6, a seal 23 is provided between the hollow rotating shaft 22 and the valve 20. The seal 23 is sleeved on the hollow rotating shaft 22 and is sealingly connected to the valve 20, so that the hollow rotating shaft 22 can be sealingly connected to the valve 20 through the seal 23, ensuring the sealing effect between the hollow rotating shaft 22 and the valve 20 and preventing the liquid in the valve 20 from flowing to the outside through the connection between the hollow rotating shaft 22 and the valve 20.

[0049] Please refer to the appendix Figures 3 to 4 , the actuator 11 includes an actuator body 111 and a rotating shaft 112; the rotating shaft 112 is rotatably connected to the actuator body 111 to facilitate adjusting the rotating shaft 112 relative to the actuator body 111; the temperature detection head 12 is connected to the rotating shaft 112 to facilitate the rotation of the temperature detection head 12 as the rotating shaft 112 rotates; when the actuator 11 is connected to the valve 20, the rotating shaft 112 is inserted into the hollow rotating shaft 22 and drives the hollow rotating shaft 22 and the temperature detection head 12 to rotate, so as to facilitate adjusting the positions of the hollow rotating shaft 22 and the temperature detection head 12 relative to the valve 20 to achieve the rotation of the hollow rotating shaft 22 and the temperature detection head 12 relative to the valve 20.

[0050] Please refer to the appendix Figures 3 to 4 , the hollow rotating shaft 22 is provided with a socket groove 22a; the rotating shaft 112 is provided with a socket boss 1121, and the socket boss 1121 is inserted into the socket groove 22a, making the hollow rotating shaft 22 relatively stationary with respect to the rotating shaft 112, so that the hollow rotating shaft 22 is in a fixed state relative to the rotating shaft 112, and the hollow rotating shaft 22 rotates as the rotating shaft 112 rotates, so as to facilitate the rotating shaft 112 to drive the hollow rotating shaft 22, thereby facilitating the adjustment of the position of the hollow rotating shaft 22 relative to the valve 20.

[0051] Please refer to the appendix Figures 3 to 4 , the hollow rotating shaft 22 is provided with a hollow hole 22b; the temperature detection head 12 is located below the socket boss 1121 and passes through the hollow hole 22b; the hollow hole 22b is located in the in-valve temperature measurement chamber 21, so that the temperature detection head 12 can be inserted into the hollow rotating shaft 22 through the hollow hole 22b, thereby facilitating the temperature detection head 12 to be in the in-valve temperature measurement chamber 21 through the hollow hole 22b to detect the temperature in the in-valve temperature measurement chamber 21, so as to facilitate the temperature detection head 12 to detect the temperature in the in-valve temperature measurement chamber 21 while the actuator 11 and the valve 20 are assembled, improving the detection convenience of the temperature detection head 12 for the temperature in the in-valve temperature measurement chamber 21.

[0052] Please refer to the appendix Figure 3, the actuator 11 further includes a power member 113. The power member 113 is located between the actuator body 111 and the rotating shaft 112. The fixed end of the power member 113 is connected to the actuator body 111, and the output end of the power member 113 is connected to the rotating shaft 112, applying a rotational force to the rotating shaft 112 so that the rotating shaft 112 can rotate driven by the power member 113, facilitating the automatic rotation of the rotating shaft 112. The temperature detection head 12 and the hollow rotating shaft 22 rotate with the rotation of the rotating shaft 112. Optionally, the power member 113 is a motor.

[0053] Please refer to the appendix Figure 2 , a detachable connection structure or an anti-disassembly connection structure is formed between the valve 20 and the actuator 11. When a detachable connection structure is formed between the valve 20 and the actuator 11, it is convenient for the valve 20 to be connected to or detached from the actuator 11, improving the replacement convenience of the valve 20. Optionally, the valve 20 is detachably connected to the actuator 11 by means of a threaded connection.

[0054] Please refer to the appendix Figures 7 to 9 , when an anti-disassembly connection structure is formed between the valve 20 and the actuator 11, an anti-disassembly component 30 is provided between the valve 20 and the actuator 11. The anti-disassembly component 30 includes an anti-disassembly part 31 and a nut 32. The anti-disassembly part 31 is positioned and connected to the actuator 11 so that the actuator 11 can limit the position of the anti-disassembly part 31, ensuring the position accuracy of the anti-disassembly part 31 relative to the actuator 11. The anti-disassembly part 31 is provided with a positioning portion 311, and the actuator 11 is provided with a positioning groove 11a. The outer contour of the positioning portion 311 is adapted to the inner contour of the positioning groove 11a, and the positioning portion 311 is positioned and connected to the positioning groove 11a so that the anti-disassembly part 31 can be positioned and connected to the actuator 11 through the positioning portion 311 and the positioning groove 11a.

[0055] Please refer to the appendix Figures 7 to 9 , the nut 32 is screwed onto the valve 20 and rotates relative to the valve 20. During the rotation process, the nut 32 can be engaged with the anti-disassembly part 31 and form an anti-disassembly connection structure with the anti-disassembly part 31, realizing the anti-disassembly function of the nut 32 that can only rotate in one direction and cannot be disassembled by turning back, thus achieving the purpose of locking and preventing disassembly, so that the valve 20 can achieve the anti-disassembly effect with the actuator 11 through the anti-disassembly part 31 and the nut 32, avoiding the valve 20 from detaching from the actuator 11 during the rotation process and improving the anti-disassembly effect of the valve 20.

[0056] Please refer to the appendix Figures 7 to 9, the anti-disassembly part 31 is arranged statically relative to the actuator 11 to facilitate the fixing of the anti-disassembly part 31 to the actuator 11; the nut 32 rotates relative to the valve 20 to facilitate the adjustment of the position of the nut 32 relative to the valve 20, so as to facilitate the connection of the nut 32 to the valve 20. The nut 32 can rotate within the anti-disassembly part 31 until the nut 32 engages with the anti-disassembly part 31, so that the nut 32 can engage with the anti-disassembly part 31 during rotation. The nut 32 and the anti-disassembly part 31 form an anti-disassembly connection structure, realizing the anti-disassembly function of the one-way rotation of the nut 32 and the inability to rotate and disassemble, thus achieving the purpose of locking and preventing disassembly, so that the valve 20 can achieve the anti-disassembly effect with the actuator 11 through the anti-disassembly part 31 and the nut 32, avoiding the separation of the valve 20 from the actuator 11 during rotation, and improving the anti-disassembly effect of the valve 20.

[0057] Please refer to the appendix Figures 7 to 9 , the nut 32 is sleeved within the anti-disassembly part 31; the anti-disassembly part 31 is provided with a first anti-disassembly portion 312; the nut 32 is provided with a second anti-disassembly portion 321, and the second anti-disassembly portion 321 engages with the first anti-disassembly portion 312 as the nut 32 rotates. An anti-disassembly connection structure is formed between the second anti-disassembly portion 321 and the first anti-disassembly portion 312, so that the second anti-disassembly portion 321 cannot move relative to the first anti-disassembly portion 312, achieving the purpose of locking and preventing disassembly of the second anti-disassembly portion 321 relative to the first anti-disassembly portion 312.

[0058] Please refer to the appendix Figures 7 to 9 , the anti-disassembly part 31 includes an annular main body 313, and the first anti-disassembly portion 312 is connected to the annular main body 313 and is arranged obliquely; so as to facilitate the fixing of the first anti-disassembly portion 312 to the annular main body 313 along the inclined direction. The second anti-disassembly portion 321 is a clamping groove, and the clamping groove is an inclined groove; the first anti-disassembly portion 312 is a clamping arm, and the clamping arm engages with the clamping groove, so that the clamping arm can be received in the clamping groove, thus facilitating the clamping arm to limit the position of the clamping groove and preventing the clamping groove from moving relative to the clamping arm, so that the clamping arm cannot move relative to the clamping groove, achieving the purpose of locking and preventing disassembly of the clamping arm relative to the clamping groove, and thus realizing the engagement of the first anti-disassembly portion 312 with the second anti-disassembly portion 321.

[0059] Please refer to the appendix Figures 7 to 9 , the first anti-disassembly portion 312 and the annular main body 313 form an integral connection structure, ensuring the connection stability between the first anti-disassembly portion 312 and the annular main body 313 and improving the connection strength between the first anti-disassembly portion 312 and the annular main body 313.

[0060] Please refer to the appendix Figures 7 to 9, there are multiple first anti-disassembly parts 312, and the multiple first anti-disassembly parts 312 are arranged along the circumferential direction of the annular main body 313. The second anti-disassembly part 321 has multiple ones, and the multiple first anti-disassembly parts 312 correspond to each second anti-disassembly part 321, so that the multiple first anti-disassembly parts 312 and the multiple second anti-disassembly parts 321 are all in an anti-disassembly connection structure. By arranging the multiple first anti-disassembly parts 312, the connection stability between the first anti-disassembly part 312 and the second anti-disassembly part 321 is increased, and the anti-disengagement effect of the nut 32 and the anti-disassembly part 31 is enhanced.

[0061] Compared with the prior art, the beneficial effects of the present utility model are:

[0062] The present utility model provides a detection device 100 for a valve. The actuator assembly 10 includes an actuator 11 and a temperature detection head 12; the temperature detection head 12 is connected to the actuator 11, realizing an integrated arrangement of the temperature sensor and the actuator 11, and improving the integration degree of the temperature sensor and the actuator 11; the valve 20 is arranged on one side of the actuator assembly 10; the valve 20 is connected to the actuator 11; the valve 20 is provided with an in-valve temperature measurement chamber 21; when the actuator 11 is connected to the valve 20, the temperature detection head 12 is inserted into the valve 20 and is in the in-valve temperature measurement chamber 21 to detect the temperature in the in-valve temperature measurement chamber 21, so as to realize the temperature detection head 12 to detect the temperature in the in-valve temperature measurement chamber 21 while the actuator 11 and the valve 20 are assembled, and improve the detection convenience of the temperature detection head 12 for the temperature in the in-valve temperature measurement chamber 21.

[0063] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0064] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0065] Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A detection device for a valve, characterized in that, Comprising: An actuator assembly, including an actuator and a temperature detection head; the temperature detection head is connected to the actuator; A valve, arranged on one side of the actuator assembly; the valve is connected to the actuator; the valve is provided with a temperature measurement chamber inside the valve; When the actuator is connected to the valve, the temperature detection head is inserted into the valve and is inside the temperature measurement chamber inside the valve to detect the temperature inside the temperature measurement chamber inside the valve.

2. The detection device for the valve according to claim 1, wherein, The valve is connected with a hollow rotating shaft, and the hollow rotating shaft is used for the temperature detection head to be inserted; the temperature measurement chamber inside the valve is inside the hollow rotating shaft and is used for accommodating the temperature detection head inserted into the hollow rotating shaft.

3. The detection device of the valve according to claim 2, characterized in that, The hollow rotating shaft extends into the ball core of the valve; The hollow rotating shaft is rotatably connected to the valve and rotates along the axis of the hollow rotating shaft.

4. The detection device of the valve according to claim 3, characterized in that, A seal is provided between the hollow rotating shaft and the valve, The seal is sleeved on the hollow rotating shaft and is sealingly connected to the valve.

5. The detection device of the valve according to claim 2, characterized in that, The actuator includes an actuator body and a rotating shaft; the rotating shaft is rotatably connected to the actuator body; the temperature detection head is connected to the rotating shaft; When the actuator is connected to the valve, the rotating shaft is inserted into the hollow rotating shaft and drives the hollow rotating shaft and the temperature detection head to rotate.

6. The detection device for a valve according to claim 5, characterized in that, The hollow rotating shaft is provided with a plugging groove; the rotating shaft is provided with a plugging boss, and the plugging boss is inserted into the plugging groove, so that the hollow rotating shaft is relatively stationary with respect to the rotating shaft, and the hollow rotating shaft rotates with the rotation of the rotating shaft.

7. The detection device for a valve according to claim 6, characterized in that, The hollow rotating shaft is provided with a hollow hole; The temperature detection head is below the plugging boss and penetrates through the hollow hole; the hollow hole is inside the temperature measurement chamber inside the valve.

8. The detection device of the valve according to claim 5, characterized in that, The actuator further includes a power member, and the power member is between the actuator body and the rotating shaft and applies a rotational force to the rotating shaft.

9. The detection device of the valve according to claim 1, characterized in that The connection structure between the valve and the actuator is a detachable connection structure or an anti-disassembly connection structure.

10. The detection device of the valve according to claim 9, characterized in that, When the connection structure between the valve and the actuator is an anti-disassembly connection structure, an anti-disassembly component is provided between the valve and the actuator, and the anti-disassembly component includes an anti-disassembly member and a nut; the anti-disassembly member is positioned and connected to the actuator; the nut is screwed onto the valve and rotates relative to the valve; the nut can be engaged with the anti-disassembly member during rotation and forms an anti-disassembly connection structure with the anti-disassembly member.

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