Detection assembly and valve device

Abstract

This application provides a detection component and a valve device, relating to the field of valve control technology. The detection component includes: a switch, a trigger, and an elastic element disposed within a first housing; a motion shaft is disposed within the first housing, an external connector is movably sleeved on a first end of the motion shaft, and the elastic element is sleeved on a second end of the motion shaft; the first end of the elastic element abuts against the first housing, and the second end of the elastic element abuts against the trigger, the trigger being disposed between the elastic element and the connector; in the axial direction of the motion shaft, the switch is disposed on the side of the motion shaft; when the connector moves axially toward the elastic element, the connector applies a first pressure toward the elastic element to the trigger; when the connector moves axially away from the elastic element, the elastic element applies a second pressure toward the connector to the trigger; the trigger moves axially based on the first and second pressures; the switch generates a switching signal based on the movement of the trigger.

Description

Technical Field

[0001] This application relates to the field of valve control technology, and more specifically, to a detection component and valve device. Background Technology

[0002] In radiation-containing environments or processes that generate radiation, the sealing materials and some component materials of conventional valves are not radiation-resistant and are easily affected by radiation, which is detrimental to the sealing and normal operation of the valves.

[0003] Conventional valves use some parts made of materials that lack radiation resistance, which does not meet the production requirements of radiation-containing environments or processes that generate radiation. All-metal valves require manual control and cannot be remotely controlled. In radiation-containing environments or environments that generate radiation, manual control can adversely affect the health of the operators. Furthermore, manual control makes it difficult to monitor the valve's open or closed status, which cannot guarantee the valve's sealing performance, resulting in poor sealing effect and failure to meet current sealing requirements. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a detection component and valve device to improve the problem of poor valve sealing performance under radiation environment in the prior art.

[0005] To address the aforementioned problems, in a first aspect, embodiments of this application provide a detection component, which includes: a first housing, a switching element, a triggering element, and an elastic element; The switching element, the triggering element, and the elastic element are disposed in the first housing; The first housing is provided with a motion shaft, an external connector is movably sleeved on the first end of the motion shaft, and an elastic element is sleeved on the second end of the motion shaft; the first end of the elastic element abuts against the first housing, the second end of the elastic element abuts against the trigger element, and the trigger element is disposed between the elastic element and the connector; In the axial direction of the motion shaft, the switching element is disposed on the side of the motion shaft; When the connector moves toward the elastic member along the axial direction, the connector applies a first pressure toward the elastic member to the trigger; when the connector moves away from the elastic member along the axial direction, the elastic member applies a second pressure toward the connector to the trigger; the trigger moves in the axial direction based on the first pressure and the second pressure. The switching element generates a switching signal based on the movement of the trigger element.

[0006] In the above implementation process, the trigger element is positioned between the elastic element and the external connecting element. Under different motion conditions, it is subjected to first and second pressures in different directions. Driven by the first and second pressures, it moves in the axial direction. The movement of the trigger element triggers the switching element located on the side of the motion shaft, thereby generating a corresponding switching signal. The force applied to the trigger element can detect the movement position of the connecting element, and the corresponding switching signal can be determined based on the actual movement position of the connecting element. This allows for remote automatic monitoring of the actual working state of the valve device where the connecting element is located, eliminating the need for manual control and detection of the valve device's opening and closing. This effectively optimizes the sealing performance of the valve device under automatic control, thereby improving the sealing effect and meeting various current sealing requirements.

[0007] Optionally, the switching element includes: a first switch and a second switch; In the axial direction, the first switch is disposed at a first height; In the axial direction, the second switch is disposed at a second height; There is a height difference between the first height and the second height; The height difference is determined based on the travel distance of the connector.

[0008] In the above implementation process, in order to detect different positions of the connector and determine the different states of the valve device in which the connector is located, two switches can be provided in the switching component. In the axial direction, the two switches are set at different heights, and there is a height difference between the two setting heights. The height difference is determined based on the movement stroke of the connector. The movement stroke of the connector can be determined according to the different states of the valve device in which the connector is located. Thus, different switches are set at the corresponding trigger positions according to the movement stroke to trigger different types of signals to represent different states, effectively improving the effectiveness and comprehensiveness of the switch signals.

[0009] Optionally, the first switch and the second switch include: a travel device with a protruding structure; The protruding structure has a preset distance from the outer wall of the connector / the outer wall of the elastic element; The protruding structure is triggered by pressing the edge of the trigger element. The protruding structure generates a change in stroke based on a press trigger, and the stroke device generates the switching signal based on the change in stroke.

[0010] In the above implementation process, both the first and second switches can include a travel device with a protruding structure. A preset distance exists between the protruding structure and the outer wall of the connector or the outer wall of the elastic element, allowing the connector and elastic element to move freely in the axial direction. This prevents accidental switch activation by the connector or elastic element. When the trigger moves to the height position corresponding to the protruding structure, the edge of the trigger can press and trigger the protruding structure, causing a change in its travel. The travel device then generates a corresponding switch signal based on this change in travel. The switch can be triggered by pressing the protruding structure with the trigger, effectively reducing the structural complexity and triggering cost. Furthermore, the protruding structure does not affect the movement of other components such as the connector or elastic element, effectively improving the triggering accuracy of the switch signal.

[0011] Optionally, the switching signal includes a first signal and a second signal; When the trigger moves to the first height, the trigger contacts the first switch to generate the first signal; When the trigger moves to the second height, the trigger contacts the second switch to generate the second signal.

[0012] In the above implementation process, when the trigger moves to the first height, the trigger can contact the first switch at the first height to generate a corresponding first signal. When the trigger moves to the second height, the trigger can contact the second switch at the second height to generate a corresponding second signal. The trigger can reflect the actual movement position of the connector, thereby triggering a corresponding type of switch signal. It can detect and provide feedback on the different positions of the connector separately, so as to automatically determine the actual working state of the valve device where the connector is located based on the type of switch signal.

[0013] Secondly, embodiments of this application also provide a valve device, the valve device comprising: a valve body having a valve port, a valve plate, a control component, and a detection component as described in any of the above; The control component is connected to the valve plate, and in the axial direction perpendicular to the plane of the valve port, the control component is used to drive the valve plate to the open / closed position of the valve port; The control component is provided with a connector, which moves synchronously with the valve plate and is connected to the detection component; The detection component is used to generate switching signals for the valve port corresponding to the open position and the closed position based on the position of the connector.

[0014] In the above implementation process, the valve device includes a valve body with a valve port, a valve plate for closing and opening the valve port, a control component for controlling the movement of the valve plate, and a detection component for detecting the movement of the valve. The control component drives the valve plate to move axially, allowing it to reach the corresponding open or closed position. A connecting component within the control component moves synchronously with the valve plate. The detection component detects the position of the connecting component, thereby detecting the position of the valve plate, which moves synchronously with the connecting component. This generates corresponding valve port opening / closing signals when the valve plate reaches the open or closed position. The system enables automatic control of the valve port's opening and closing based on the control component and remote automatic monitoring of the valve port's opening and closing status based on the detection component. This eliminates the need for manual control and detection of the valve port's opening and closing, effectively optimizing the sealing performance of the valve device under automatic control, thus improving the sealing effect and meeting various current sealing requirements.

[0015] Optionally, the control assembly further includes: a second housing, a controller, a drive motor, and a moving part; The drive motor and the moving part are disposed inside the second housing, and the controller is disposed on the second housing; the controller is connected to the drive motor, and the controller is used to control the working state of the drive motor; The drive unit is connected to the moving part, and the drive unit is used to control the position of the moving part in the axial direction based on the working state; The first end of the moving part is connected to the valve, and the second end of the moving part is connected to the end of the connecting part away from the detection component. The moving part is used to drive the valve and the connecting part to move in the axial direction.

[0016] In the above implementation process, the control component is provided with a corresponding second housing, a drive motor and a moving part placed in the second housing, and a controller connected to the drive motor. The controller controls the working state of the drive motor, so as to control the movement of the connected moving part in the axial direction through the drive motor, thereby controlling the position of the moving part in the axial direction. The first end of the moving part is connected to the valve, and the second end is connected to the end of the connecting part away from the detection component. So that the movement of the moving part drives the connected valve plate and the connecting part to move synchronously in the axial direction, effectively improving the consistency of movement between the connecting part and the valve plate, thereby improving the accuracy of the valve port state response of the detection component based on the switch signal detected by the connecting part.

[0017] Optionally, the end of the connector that is connected to the detection component is configured as a hollow structure; The detection component is disposed on the second housing, and the connector extends out of the second housing and is movably sleeved on the motion axis of the detection component based on the hollow structure; The travel distance of the connector is determined based on the open position and the closed position.

[0018] In the above implementation process, the end of the connector connected to the detection component is set as a hollow structure. The detection component can be fixed on the second housing. The connector extends out of the second housing and is movably sleeved on the motion shaft through the hollow structure, so that the connector can move along the axial direction of the motion shaft. Furthermore, the axial stroke of the connector can be determined according to the opening and closing positions of the valve port, so that the position of the valve plate is reflected by the position of the connector. Thus, the actual state of the valve port is determined according to the actual position of the valve plate and the positional relationship between the opening and closing positions, which effectively improves the accuracy of the valve port state reflected by the switch signal.

[0019] Optionally, the inner wall of the second housing is provided with a stepped structure, which is used to restrict the movement position of the moving part; The location of the step structure is determined based on the open position and the closed position.

[0020] In the above implementation process, considering that if the driving force applied to the valve plate is large when the valve plate reaches the open or closed position, there may be adverse conditions of overpressure inside the control component and the components installed on the valve plate, which may cause deformation or damage to the components, the second housing of the control component can be provided with a stepped structure to reduce the adverse conditions of overpressure. The setting position of the stepped structure is determined according to the open and closed positions, so as to restrict the movement position of the moving parts through the stepped structure. While ensuring the reliability of detection, it reduces the damage to the components caused by overpressure, thereby effectively extending the service life of the valve device.

[0021] Optionally, the moving member includes: an elastic pressure member and a driving member; The driving component is connected to the driving machine, and one end of the elastic pressure component is connected to the driving component; When the controller determines that the valve port needs to be opened, the drive motor applies a third pressure away from the valve port to the drive member. When the controller determines that the valve port needs to be closed, the elastic pressure member applies a fourth pressure towards the valve port to the drive member based on elastic deformation. The drive member moves in the axial direction based on the third and fourth pressures. When the valve plate moves to the closed position, the drive applies a sealing pressure to the valve plate based on the fourth pressure.

[0022] In the above implementation process, the moving component may include an elastic pressure component and a driving component. The driving component can be connected to a drive motor, and one end of the elastic pressure component is connected to the driving component. When the controller determines that the valve port needs to be opened, the drive motor can apply a third pressure away from the valve port to the driving component. When the controller determines that the valve port needs to be closed, the elastic pressure component can apply a fourth pressure towards the valve port to the driving component based on its own elastic deformation, so that the driving component can move in the axial direction based on the third and fourth pressures, thereby driving the connected valve plate and connecting component to move synchronously together. The corresponding valve port opening and closing functions can be realized according to the actual valve port control requirements, effectively improving the efficiency of valve port opening and closing control. Furthermore, when the valve plate moves to the closed position, the driving component can continue to apply sealing pressure to the valve plate based on the fourth pressure applied by the elastic pressure component, so as to optimize the sealing effect when the valve port is closed and reduce the adverse situation of material overflowing from the valve port.

[0023] Optionally, a metal seal is provided on the valve plate; In the axial direction, the metal seal is disposed at the end of the valve plate away from the control assembly; When the valve port is closed, the metal seal is used to seal the valve port and the valve plate.

[0024] In the above implementation process, in the axial direction, a corresponding metal seal can be set on the end of the valve plate away from the control component, that is, the end close to the valve port, so as to seal the valve port and the valve plate when the valve port is closed, thereby achieving the sealing closure of the valve port, optimizing the sealing effect when the valve port is closed, and the metal seal has good radiation resistance performance, is not easily affected by the radiation material controlled by the valve port, and is suitable for application scenarios in various radiation environments.

[0025] In summary, the embodiments of this application provide a detection component and a valve device that can automatically control the opening and closing of the valve port based on the control component, and remotely and automatically monitor the opening and closing status of the valve port based on the detection component. This eliminates the need for manual control and detection of the valve port's opening and closing, effectively optimizing the sealing performance of the valve device under automatic control, thereby improving the sealing effect of the valve device and meeting various current sealing requirements. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a detection component provided in an embodiment of this application; Figure 2 This is a schematic diagram of another detection component provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a valve device provided in an embodiment of this application; Figure 4 This is a detailed structural schematic diagram of a valve device provided in an embodiment of this application.

[0028] Icons: 100-Detection component; 110-First housing; 120-Switch; 130-Trigger; 140-Elastic element; 111-Motion axis; A-Axial direction; 121-First switch; 122-Second switch; 123-Protruding structure; 124-Stroke device; h-Height difference; 200-Valve body; 210-Valve port; 220-Valve plate; 300-Control component; 310-Connector; 320-Second housing; 330-Controller; 340-Driver; 350-Moving element; 231-Upper valve body; 232-Lower valve body; 233-Elastic tube; 234-Sealing pressure plate; 235-Metal gasket; 351-Elastic pressure element; 352-Driver; 353-Disc spring seat; 221-Metal seal; 222-Valve stem; 223-Sleeve. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0030] Conventional valves use components made of materials that lack radiation resistance. For example, the rubber rings used for sealing are susceptible to radiation, undergoing adverse changes such as cross-linking, hardening, degradation, and chain breakage. This affects the sealing effect of the rubber ring when the valve is closed, failing to meet the production requirements of radiation-containing environments or processes. Existing solutions use all-metal valves to address the radiation-induced degradation problem caused by rubber materials. However, due to the metallic properties of all-metal valves, current models require manual control, such as manual operation to open and close the valve, making remote control impossible. In radiation-containing environments or environments that generate radiation, manual control can adversely affect the health of operators. Furthermore, due to the metallic properties of all-metal valves, manual control makes it difficult to monitor the valve's open or closed state, compromising sealing performance and resulting in poor sealing that fails to meet current sealing requirements.

[0031] To address the aforementioned issues, this application provides a detection component and a valve device that can automatically control the opening and closing of the valve port based on a control component, and remotely and automatically monitor the opening and closing status of the valve port based on a detection component. This eliminates the need for manual control and detection of the valve port's opening and closing, effectively optimizing the sealing performance of the valve device under automatic control, thereby improving the sealing effect of the valve device and meeting various current sealing requirements.

[0032] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a detection component provided in an embodiment of this application. The detection component may include: a first housing 110, a switch 120, a trigger 130, and an elastic member 140. The switching element 120, trigger element 130, and elastic element 140 are disposed in the first housing 110. A motion shaft 111 is disposed in the first housing 110. An external connecting element 310 is movably sleeved on the first end of the motion shaft 111, and the elastic element 140 is sleeved on the second end of the motion shaft 111. The first end of the elastic element 140 abuts against the first housing 110, and the second end of the elastic element 140 abuts against the trigger element 130. The trigger element 130 is disposed between the elastic element 140 and the connecting element 310. The switching element 120 is disposed on the side of the motion shaft 111 along the axial direction A.

[0033] Optionally, when the connector 310 moves towards the elastic member 140 along the axial direction A, the connector 310 applies a first pressure towards the elastic member 140 to the trigger member 130; when the connector 310 moves away from the elastic member 140 along the axial direction A, the elastic member 140 applies a second pressure towards the trigger member 130. The trigger member 130 moves in the axial direction A based on the first and second pressures, and the switch member 120 generates a switching signal based on the movement of the trigger member 130. The trigger member 130 is disposed between the elastic member 140 and the external connector 310, and under different movement conditions, it is subjected to first and second pressures in different directions. Driven by the first and second pressures, it moves in the axial direction A, so that the movement of the trigger member 130 triggers the switch member 120 disposed on the side of the motion shaft 111, thereby generating a corresponding switching signal by the switch member 120.

[0034] For example, the first housing 110 can be made of various materials, such as a metal housing or a plastic housing. The shape of the first housing 110 can also be determined according to the size of the internal components and the travel of the connecting member 310. The motion shaft 111 can be a shaft-shaped structure fixed on the inner wall of the first housing 110. The elastic element 140 can be a metal spring (such as a spring made of 65Mn) or other elastic device sleeved on the motion shaft 111. The trigger element 130 is sleeved on the connecting member 310. The trigger element 130 can be a corresponding ring structure based on the actual shape of the outer wall of the connecting member 310, such as a circular metal gasket or washer. The switch element 120 can be a photosensitive switch device that detects whether the trigger element 130 has passed by or a physical switch device of various types triggered by the contact of the trigger element 130.

[0035] exist Figure 1 In the illustrated embodiment, the movement position of the connector 310 can be detected by the force applied to the trigger 130, and the corresponding switching signal can be determined based on the actual movement position of the connector 310. This allows for remote automatic monitoring of the actual working state of the valve device where the connector 310 is located, eliminating the need for manual control and detection of the valve device's opening and closing. This effectively optimizes the sealing performance of the valve device under automatic control, thereby improving the sealing effect of the valve device and meeting various current sealing requirements.

[0036] Optionally, please refer to Figure 2 , Figure 2 This is a schematic diagram of another detection component provided in an embodiment of this application. In order to detect different positions of the connector 310 to determine different states of the valve device in which the connector 310 is located, the switching component 120 may include a first switch 121 and a second switch 122. In the axial direction A, the first switch 121 is disposed at a first height, and the second switch 122 is disposed at a second height.

[0037] It should be noted that the first height and the second height are the relative heights of the trigger positions of the first switch 121 and the second switch 122 relative to the axial direction A of the motion shaft 111. To characterize different states of the valve device through the triggering of the first switch 121 and the second switch 122, there is a height difference h between the first height and the second height. The height difference h can be determined based on the movement stroke of the connector 310; for example, the height difference h can be set to 13 mm. Correspondingly, the positions of the first switch 121 and the second switch 122 can also be determined based on the height difference h and the length of the connector 310. By determining the movement stroke of the connector 310 according to different states of the valve device, different switches can be set at corresponding trigger positions according to the movement stroke to trigger different types of signals characterizing different states, effectively improving the effectiveness and comprehensiveness of the switch signals.

[0038] Optionally, the first switch 121 and the second switch 122 can be located on both sides of the motion shaft 111 or on the same side of the motion shaft 111. The specific location can be determined according to the actual spatial distribution inside the first housing 110.

[0039] Optionally, to reduce the structural complexity and device cost of the detection components, the first switch 121 and the second switch 122 may include a travel device 124 with a protruding structure 123. A preset distance exists between the protruding structure 123 and the outer wall of the connector 310 / elastic member 140. The edge of the trigger member 130 presses and triggers the protruding structure 123, causing a travel change in the protruding structure 123 based on the press trigger. The travel device 124 generates a switch signal based on this travel change. The preset distance between the protruding structure 123 and the outer wall of the connector 310 or the outer wall of the elastic member 140 allows the connector 310 and the elastic member 140 to move freely in the axial direction A, preventing accidental switch activation by the connector 310 or the elastic member 140. When the trigger member 130 moves to the height position corresponding to the protruding structure 123, the edge of the trigger member 130 can press and trigger the protruding structure 123, causing a travel change in the protruding structure 123. The travel device 124 then generates a corresponding switch signal based on this travel change. The switch can be triggered by pressing the protruding structure 123 through the trigger 130, which effectively reduces the structural complexity and triggering cost when the switch is triggered. Furthermore, the protruding structure 123 does not affect the movement of other devices such as the connector 310 or the elastic element 140, thus effectively improving the triggering accuracy of the switch signal.

[0040] Optionally, the protrusion structure 123 can be as follows: Figure 2 The spherical or arc-shaped metal strip shown can also be set to other shapes, such as pyramid-shaped or angled metal strips. On the plane in the vertical axial direction A, the annular diameter of the trigger 130 + the protrusion length of the protrusion structure 123 < the distance between the protrusion structure 123 and the inner ring of the trigger 130. The protrusion structure 123 is set on the stroke device 124 through a rod-like structure. Therefore, when the trigger 130 passes through the protrusion structure 123, it can press the protrusion structure 123, thereby driving the rod-like structure to move, so as to produce a change in the stroke of the protrusion structure 123.

[0041] For example, the travel device 124 can be a travel switch, which can control the circuit to open or close through mechanically triggered travel changes, thereby generating a corresponding switch signal. A corresponding bracket can also be provided to fix the travel device 124 inside the first housing 110, providing a stable working environment for the travel device 124.

[0042] It should be noted that the switching signal may include a first signal and a second signal. When the trigger 130 moves to a first height, the trigger 130 contacts the first switch 121 to generate a first signal; when the trigger 130 moves to a second height, the trigger 130 contacts the second switch 122 to generate a second signal. When the trigger 130 moves to the first height, it can contact the first switch 121 at the first height to generate a corresponding first signal; when the trigger 130 moves to the second height, it can contact the second switch 122 at the second height to generate a corresponding second signal. The trigger 130 can reflect the actual movement position of the connector 310, thereby triggering the corresponding type of switching signal. It can individually detect and provide feedback on the different positions of the connector 310, so as to automatically determine the actual working state of the valve device where the connector 310 is located based on the type of switching signal.

[0043] For example, when the external connector 310 is a device in the valve device, the first signal can be a signal indicating that the valve port 210 of the valve device is open, and the second signal can be a signal indicating that the valve port 210 of the valve device is closed.

[0044] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a valve device provided in an embodiment of this application. The valve device may include: a valve body 200 having a valve port 210, a valve plate 220, a control component 300, and a detection component 100 of any of the above embodiments.

[0045] Optionally, the valve device can be configured with various types of valves, such as slide gate valves and angle valves. To suit applications with radiation, the embodiments provided in this application use an angle valve as an example. The valve body 200 of the angle valve has an outlet and an inlet at a 90-degree angle, with the outlet and inlet connected to different pipes respectively. This allows for the control of parameters such as the flow rate, pressure, and temperature of the medium to ensure the stability and safety of the production process. For example, the angle valve may include: a three-way angle valve, a brass angle valve, a flanged angle valve, a piston angle valve, a sanitary clamp angle valve, etc.

[0046] Correspondingly, in Figure 3In the illustrated angle valve embodiment, the plane of the valve port 210 is perpendicular to the axial direction A. The control component 300 is connected to the valve plate 220. In the axial direction A, the control component 300 is used to move the valve plate 220 to the open / closed position of the valve port 210. The valve plate 220 is set parallel to the valve port 210. The open and closed positions are both positions of the valve plate 220 plane in the axial direction A. It should be noted that, considering the radiation characteristics of the substance inside the valve device, in order to reduce the adverse situation of the substance leaking from the valve device to the outside, and to control the flow rate of the substance according to the actual situation, the specific positions of the open and closed positions can be set according to the actual situation.

[0047] It should be noted that the control component 300 includes a connector 310, which moves synchronously with the valve plate 220. The connector 310 is connected to the detection component 100, which generates switching signals for the valve port 210 corresponding to the open and closed positions based on the position of the connector 310. The control component 300 can drive the valve plate 220 to move in the axial direction A, allowing it to reach the corresponding open or closed position. The connector 310 in the control component 300 moves synchronously with the valve plate 220. The detection component 100 detects the position of the connector 310 to detect the position of the valve plate 220, which moves synchronously with the connector 310. Therefore, when the valve plate 220 reaches the open or closed position, the corresponding switching signal for the valve port 210 is generated. The valve can automatically control the opening and closing of the valve port 210 based on the control component 300, and remotely and automatically monitor the opening and closing status of the valve port 210 based on the detection component 100. This eliminates the need for manual control and detection of the valve port 210, effectively optimizing the sealing performance of the valve device under automatic control, thereby improving the sealing effect of the valve device and meeting various current sealing requirements.

[0048] Optionally, please refer to Figure 4 , Figure 4 The present application provides a detailed structural schematic diagram of a valve device, wherein the control component 300 may further include: a second housing 320, a controller 330, a drive motor 340, and a moving part 350.

[0049] The drive unit 340 and the moving part 350 are disposed inside the second housing 320, and the controller 330 is disposed on the second housing 320. The controller 330 is connected to the drive unit 340 and is used to control the working state of the drive unit 340. The drive unit 340 is connected to the moving part 350 and is used to control the position of the moving part 350 in the axial direction A based on the working state. The first end of the moving part 350 is connected to the valve, and the second end of the moving part 350 is connected to the end of the connecting part 310 away from the detection component 100. The moving part 350 is used to drive the valve and the connecting part 310 to move in the axial direction A. The controller 330 controls the working state of the drive motor 340, thereby controlling the movement of the connected moving part 350 in the axial direction A, and thus controlling the position of the moving part 350 in the axial direction A. The first end of the moving part 350 is connected to the valve, and the second end is connected to the end of the connector 310 away from the detection component 100. The movement of the moving part 350 drives the connected valve plate 220 and the connector 310 to move synchronously in the axial direction A, which effectively improves the consistency of movement between the connector 310 and the valve plate 220, thereby improving the accuracy of the valve port 210 state response of the detection component 100 based on the switch signal detected by the connector 310.

[0050] For example, the drive unit 340 can be configured as a corresponding cylinder device, which controls the position of the moving part 350 by controlling the on and off of the air source. The controller 330 can be a device such as a solenoid valve. The solenoid valve is connected to the power supply and can control the on and off of the power supply in the drive unit 340 by whether the solenoid valve is energized or not. The moving part 350 can include a corresponding slider, piston or other device that can realize the position movement function.

[0051] Optionally, the end of the connector 310 connected to the detection component 100 is configured as a hollow structure. The detection component 100 is disposed on the second housing 320. The connector 310 extends out of the second housing 320 and is movably sleeved on the motion shaft 111 of the detection component 100 based on the hollow structure, so that the connector 310 can move along the axial direction A of the motion shaft 111.

[0052] For example, the connector 310 can be configured as a corresponding rod-shaped structure, and the hollow structure can include a hollow round rod, the size and shape of which are set based on the shape of the outer wall of the motion shaft 111.

[0053] For example, the second housing 320 of the control component 300 and the first housing 110 of the detection component 100 can be configured as an integrated housing or as detachable separate housings.

[0054] It should be noted that the travel of the connector 310 in the axial direction A is determined based on the open and closed positions. For example, the travel can be the distance between the open and closed positions in the axial direction, i.e., the switching travel of the valve plate 220. The switching travel of the valve plate 220, the travel of the connector 310, and the height difference h between the two switches in the detection assembly 100 are all equal. The switching travel of the valve plate 220 can be set according to the actual size of the valve port 210. For example, when the diameter of the valve port 210 is 40mm, based on the valve design principle, approximately one-third of the diameter, 13mm, can be selected as the switching travel of the valve plate 220. The position of the valve plate 220 is reflected by the position of the connector 310. Thus, based on the actual position of the valve plate 220 and its positional relationship with the open and closed positions, the actual state of the valve port 210 can be determined, effectively improving the accuracy of the valve port 210 state reflected by the switch signal.

[0055] Optionally, the valve body 200 may include an upper valve body 231 (i.e., valve cover) and a lower valve body 232. The connection between the upper valve body 231 and the lower valve body 232 can be a CF flange. Considering the relative movement of the valve plate 220 on the upper valve body 231, and to reduce the adverse situation of material inside the valve overflowing to the outside, a corresponding elastic tube 233 can also be provided, such as a metal bellows. One end of the bellows is fixed to the valve plate 220, and the other end is fixed to the lower valve body 232, so that the bellows can be used to adjust the position of the upper valve body 231 according to the valve plate 220. The upper valve body 231 and the lower valve body 232 are sealed together. A sealing plate 234 and a metal gasket 235 can also be provided at the connection between the bellows and the lower valve body 232 for sealing. When material enters from the gap between the upper valve body 231 and the lower valve body 232, it can be sealed based on the bellows to reduce material leakage of the valve device and reduce the entry of air from the outside into the valve device, thereby reducing the adverse effects of air on the vacuum level inside the valve device. It is suitable for a variety of vacuum valve devices with vacuum requirements.

[0056] It should be noted that, considering the large driving force applied to the valve plate 220 when it reaches the open or closed position, overpressure may occur inside the control component 300 and on the valve plate 220, leading to deformation or damage. For example, if the pressure applied by the control component 300 is too large when the valve plate 220 reaches the closed position, the valve plate 220 may continue to move closer to the valve port 210, causing excessive stretching of the bellows. Alternatively, if the pressure applied by the control component 300 is too large when the valve plate 220 reaches the open position, the valve plate 220 may continue to move away from the valve port 210, causing excessive compression of the moving part 350. Therefore, to reduce the adverse effects of overpressure, the inner wall of the second housing 320 can be provided with a stepped structure. The stepped structure is used to restrict the movement of the moving part 350, and its position is determined based on the open and closed positions. By restricting the movement of the moving part 350 through the stepped structure, the reliability of detection is ensured while reducing damage to the device due to overpressure, thereby effectively extending the service life of the valve device.

[0057] Optionally, the moving part 350 may include an elastic pressure member 351 and a driving member 352. The driving member 352 is connected to the drive motor 340, and one end of the elastic pressure member 351 is connected to the driving member 352. When the controller 330 determines that the valve port 210 needs to be opened, the drive motor 340 applies a third pressure away from the valve port 210 to the driving member 352. When the controller 330 determines that the valve port 210 needs to be closed, the elastic pressure member 351 applies a fourth pressure towards the valve port 210 to the driving member 352 based on elastic deformation. The driving member 352 moves in the axial direction A based on the third and fourth pressures. When the valve plate 220 moves to the closed position, the driving member 352 applies a sealing pressure to the valve plate 220 based on the fourth pressure. When the controller 330 determines that the valve port 210 needs to be opened, the drive motor 340 can apply a third pressure away from the valve port 210 to the drive member 352. When the controller 330 determines that the valve port 210 needs to be closed, the elastic pressure member 351 can apply a fourth pressure towards the valve port 210 to the drive member 352 based on its own elastic deformation, so that the drive member 352 can move in the axial direction A based on the third and fourth pressures, thereby driving the connected valve plate 220 and the connecting member 310 to move synchronously together. The corresponding valve port 210 opening and closing functions can be realized according to the actual valve port 210 control requirements, effectively improving the efficiency of valve port 210 opening and closing control. Furthermore, when the valve plate 220 moves to the closed position, the drive member 352 can continue to apply sealing pressure to the valve plate 220 based on the fourth pressure applied by the elastic pressure member 351, so as to optimize the sealing effect when the valve port 210 is closed and reduce the adverse situation of material overflowing from the valve port 210.

[0058] Optionally, the valve port 210 opening and closing requirements can be sent to the controller 330 via remote network communication, so that the controller 330 can parse the sent requirements and convert the parsed valve port 210 opening and closing requirements into gas source on / off signals.

[0059] For example, the driving member 352 can be configured as a piston or other device that can move due to changes in gas pressure within the second housing 320. The elastic pressure member 351 can be configured as a disc spring or other device that can be squeezed and push the driving member 352 to move. The disc spring can be mounted on a corresponding disc spring seat 353. The piston abuts against the end of the disc spring seat 353 near the valve port 210, and the end of the disc spring seat 353 away from the valve port 210 is connected to the connecting member 310.

[0060] For example, the stepped structure provided on the inner wall of the second housing 320 may include multiple stepped structures to define the two positions of the drive member 352 corresponding to the open position and the closed position, and the position of the elastic pressure member 351 near the detection assembly 100.

[0061] Optionally, a metal seal 221 is provided on the valve plate 220. In the axial direction A, the metal seal 221 is located at the end of the valve plate 220 away from the control component 300. When the valve port 210 is closed, the metal seal 221 is used to seal the valve port 210 and the valve plate 220, thereby achieving the sealing closure of the valve port 210, optimizing the sealing effect when the valve port 210 is closed, and the metal seal 221 has good radiation resistance and is not easily affected by the radiation material controlled by the valve port 210, making it suitable for various radiation environment application scenarios.

[0062] For example, the valve plate 220 can be connected to the control component 300 via a corresponding valve stem 222 or other connecting rod. The valve stem 222 is parallel to the axial direction A and welded and fixed to the valve plate 220 perpendicular to it. A sleeve 223 can be provided on the outside of the valve stem 222 to protect the movement of the valve stem 222, so that the control component 300 can drive the valve plate 220 to move via the valve stem 222.

[0063] It should be noted that, in order to be used in environments with radiation, the valve body 200, valve plate 220, and multiple components on the valve body 200 and valve plate 220 that are closely related to the radioactive material in the valve device of this application embodiment can all be made of radiation-resistant metal materials, such as 316L low-carbon austenitic stainless steel.

[0064] For example, the valve device provided in this embodiment employs an all-metal sealing structure, using a disc spring to apply pressure to ensure the valve's sealing performance in its natural state. Then, by connecting an air source, the pressure of the air source pushes the valve open, and the stepped structure on the inner wall of the second housing 320 provides a limit, preventing overpressure on the disc spring and bellows, which could affect the valve's lifespan. Based on the open and closed positions of the valve port 210, a corresponding switch 120 is provided in the detection component to provide feedback on the valve's open and closed states. This valve device, while possessing radiation resistance, can also seal a vacuum chamber and allows for remote monitoring and control, making it suitable for radiation-containing environments or processes that generate radiation.

[0065] It should be noted that, in the axial direction A, a fourth pressure is provided by the disc spring pointing towards the valve port 210, which serves as a downward sealing force for the valve plate 220, thereby closing and sealing the valve port 210. When the air source is connected, the piston is subjected to an upward force from the air source. The third pressure overcomes the fourth pressure of the disc spring, causing the valve plate 220 to move upward, thus opening the valve port 210. When the valve port 210 is closed, the trigger element 130 in the detection assembly presses the second switch 122, obtaining a second signal as a closed signal. When the valve port 210 is open, the trigger element 130 in the detection assembly presses the first switch 121, obtaining a first signal as an open signal.

[0066] For example, the actual working process of the valve device may include: the switch 120 is continuously energized to provide feedback on the valve's open / closed position. The solenoid valve can be connected to a remote control device, which controls the solenoid valve to be energized / de-energized, thereby controlling the flow of air in the cylinder. The cylinder's air inlet is connected to the solenoid valve, which is connected to the air source. With the air source open, the solenoid valve is energized, air flows through the cylinder's air inlet, the piston moves away from the valve port 210, applying a third pressure, causing the valve plate 220 to move away from the sealing surface of the valve port 210 until the valve is fully open. During the valve opening process, the connecting member 310 is pushed away from the valve port 210 by the disc spring seat 353, pushing the trigger member 130 away from the valve port. When the valve is fully open, the trigger member 130 presses the first switch 121, receiving the first signal. When the solenoid valve is de-energized, the air supply to the cylinder is cut off. Under the fourth pressure applied by the disc spring, the piston moves closer to the valve port 210, pushing the valve plate 220 closer to the valve port 210 until the valve plate 220 reaches the sealing surface corresponding to the valve port 210. Under the fourth pressure, the metal sealing ring undergoes slight compression deformation, sealing the sealing surface of the valve port 210. During valve closing, the connecting member 310 moves closer to the valve port 210 under the action of the elastic member 140, pushing the trigger member 130 closer to the valve port 210. When the valve is fully closed, the lower end of the connecting member 310 also contacts the top surface of the second housing 320, and the trigger member 130 presses the second switch 122, obtaining the second signal.

[0067] The valve device provided in this application embodiment features an all-metal seal with excellent radiation resistance. It employs a gas-driven mechanism, offering convenient and rapid operation, enabling remote valve control and preventing operator exposure to radiation-containing environments, thus avoiding radiation-related harm. The elastic pressure element 351 possesses the characteristic of generating high pressure with small displacements and exhibiting a certain buffering performance during displacement changes. While ensuring valve sealing, the superposition of displacements from the combined components satisfies the valve's opening displacement requirements. Furthermore, when the valve closes, the buffering performance of the elastic pressure element 351 reduces the impact on the metal sealing ring during the valve's sealing moment, minimizing damage to the metal sealing ring and extending the valve's service life. The connector 310 drives the trigger 130 to move to achieve position feedback, and an elastic element 140 is provided. The second pressure provided by the elastic element 140 acts on the trigger 130, which improves the reliability of the position of the trigger 130. When the valve is opened, the connector 310 is pushed by the control component 300. The connector 310 moves synchronously with the valve plate 220. When the valve is fully opened, the upper end face of the connector 310 can also abut against the top inner wall of the first housing 110. This mechanical limit ensures that when the valve is opened, the trigger 130 can just reach the first height and accurately touch and press the first switch 121, thereby outputting the first signal. When the valve is closed, the control component 300 moves closer to the valve port 210. The connecting member 310 loses its support and moves closer to the valve port 210 under the action of the elastic member 140. When the valve is closed, the bottom surface of the step on the connecting member 310 also reaches the upper surface of the second housing 320. Due to the presence of the step on the connecting member 310, the connecting member 310 no longer moves downward. The trigger member 130 simultaneously reaches the second height and touches and presses the second switch 122, outputting the second signal. Due to the slight compression deformation of the metal sealing ring when the valve is closed and sealed, the disc spring seat 353 will move downward a small distance. This structure ensures that the trigger member 130 will not move downward after reaching the second height. This ensures that there is a signal output in both the valve opening and closing positions, guaranteeing the effectiveness and reliability of the position feedback.

[0068] In addition, the components in the various embodiments of this application can be integrated together to form an independent part, or each component can exist independently, or two or more components can be integrated to form an independent part.

[0069] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0070] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes said element.

Claims

1. A detection component, characterized in that, The detection component includes: a first housing, a switch, a trigger, and an elastic element; The switching element, the triggering element, and the elastic element are disposed in the first housing; The first housing is provided with a motion shaft, an external connector is movably sleeved on the first end of the motion shaft, and an elastic element is sleeved on the second end of the motion shaft; the first end of the elastic element abuts against the first housing, the second end of the elastic element abuts against the trigger element, and the trigger element is disposed between the elastic element and the connector; In the axial direction of the motion shaft, the switching element is disposed on the side of the motion shaft; When the connector moves toward the elastic member along the axial direction, the connector applies a first pressure toward the elastic member to the trigger; when the connector moves away from the elastic member along the axial direction, the elastic member applies a second pressure toward the connector to the trigger; the trigger moves in the axial direction based on the first pressure and the second pressure. The switching element generates a switching signal based on the movement of the trigger element; The switching element includes a first switch and a second switch; the first switch is disposed at a first height in the axial direction; the second switch is disposed at a second height in the axial direction; there is a height difference between the first height and the second height; wherein the height difference is determined based on the travel of the connecting element.

2. The detection component according to claim 1, characterized in that, in, The first switch and the second switch each include a travel device with a protruding structure. The protruding structure has a predetermined distance from the outer wall of the connector and the outer wall of the elastic member; The protruding structure is triggered by pressing the edge of the trigger element. The protruding structure generates a change in stroke based on a press trigger, and the stroke device generates the switching signal based on the change in stroke.

3. The detection component according to claim 1, characterized in that, in, The switching signal includes a first signal and a second signal; When the trigger moves to the first height, the trigger contacts the first switch to generate the first signal; When the trigger moves to the second height, the trigger contacts the second switch to generate the second signal.

4. A valve device, characterized in that, The valve device includes: a valve body having a valve port, a valve plate, a control component, and a detection component as described in any one of claims 1-3; The control component is connected to the valve plate, and in the axial direction perpendicular to the plane of the valve port, the control component is used to drive the valve plate to the open position or the closed position of the valve port; The control component is provided with a connector, which moves synchronously with the valve plate and is connected to the detection component; The detection component is used to generate switching signals for the valve port corresponding to the open position and the closed position based on the position of the connector.

5. The valve device according to claim 4, characterized in that, in, The control assembly further includes: a second housing, a controller, a drive motor, and a moving part; The drive motor and the moving part are disposed inside the second housing, and the controller is disposed on the second housing; the controller is connected to the drive motor, and the controller is used to control the working state of the drive motor; The drive unit is connected to the moving part, and the drive unit is used to control the position of the moving part in the axial direction based on the working state; The first end of the moving part is connected to the valve plate, and the second end of the moving part is connected to the end of the connecting part away from the detection component. The moving part is used to drive the valve plate and the connecting part to move in the axial direction.

6. The valve device according to claim 5, characterized in that, in, The end of the connector that is connected to the detection component is configured as a hollow structure. The detection component is disposed on the second housing, and the connector extends out of the second housing and is movably sleeved on the motion axis of the detection component based on the hollow structure; The travel distance of the connector is determined based on the open position and the closed position.

7. The valve device according to claim 5, characterized in that, in, The inner wall of the second housing is provided with a stepped structure, which is used to restrict the movement position of the moving part; The location of the step structure is determined based on the open position and the closed position.

8. The valve device according to claim 5, characterized in that, in, The moving component includes: an elastic pressure component and a driving component; The driving component is connected to the driving machine, and one end of the elastic pressure component is connected to the driving component; When the controller determines that the valve port needs to be opened, the drive motor applies a third pressure away from the valve port to the drive member. When the controller determines that the valve port needs to be closed, the elastic pressure member applies a fourth pressure towards the valve port to the drive member based on elastic deformation. The drive member moves in the axial direction based on the third and fourth pressures. When the valve plate moves to the closed position, the drive applies a sealing pressure to the valve plate based on the fourth pressure.

9. The valve device according to claim 4, characterized in that, in, The valve plate is provided with a metal seal; In the axial direction, the metal seal is disposed at the end of the valve plate away from the control assembly; When the valve port is closed, the metal seal is used to seal the valve port and the valve plate.

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