Detection assembly and valve device

Abstract

The invention provides a detection assembly and a valve device, and relates to the technical field of valve control. The detection assembly comprises a switch piece, a trigger piece and an elastic piece which are arranged in a first shell; a moving shaft is arranged in the first shell, the first end of the moving shaft is movably sleeved with the external connecting piece, and the second end of the moving shaft is sleeved with the elastic piece. The first end of the elastic piece abuts against the first shell, the second end of the elastic piece abuts against the trigger piece, and the trigger piece is arranged between the elastic piece and the connecting piece; in the axial direction of the moving shaft, the switch piece is arranged on the side face of the moving shaft; under the condition that the connecting piece moves towards the elastic piece in the axial direction, the connecting piece applies first pressure pointing to the elastic piece to the triggering piece, and under the condition that the connecting piece moves away from the elastic piece in the axial direction, the elastic piece applies second pressure pointing to the connecting piece to the triggering piece; the triggering piece moves in the axial direction based on the first pressure and the second pressure; the switching member generates a switching signal based on the movement of the trigger member.

Description

Technical Field

[0001] The present application relates to the field of valve control technology, and in particular to a detection component and a valve device. Background Art

[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 and fail, which is not conducive to the sealing and normal operation of the valves.

[0003] Some parts materials used in conventional valves have no radiation resistance and do not meet the production requirements of radiation-containing environments or radiation-generating processes. All-metal valves need to be manually controlled and cannot be remotely controlled. In radiation-containing environments or radiation-generating environments, manual control will have an adverse effect on the health of the control personnel. Manual control also makes it difficult to monitor the open or closed status of the valve, and the sealing performance of the valve cannot be guaranteed, resulting in poor valve sealing effect and failure to meet current sealing requirements. Summary of the Invention

[0004] In view of this, an object of the embodiments of the present application is to provide a detection component and a valve device to improve the problem of poor valve sealing effect in a radiation environment existing in the prior art.

[0005] In order to solve the above problems, in a first aspect, an embodiment of the present application provides a detection assembly, the detection assembly comprising: a first housing, a switch member, a trigger member, and an elastic member; The switch member, the trigger member and the elastic member are arranged in the first housing; A motion shaft is provided in the first housing, an external connecting member is movably sleeved on a first end of the motion shaft, and an elastic member is sleeved on a second end of the motion shaft; the first end of the elastic member abuts against the first housing, and the second end of the elastic member abuts against the trigger member, and the trigger member is provided between the elastic member and the connecting member; In the axial direction of the motion shaft, the switch element is arranged on the side of the motion shaft; When the connecting member moves in the axial direction toward the elastic member, the connecting member applies a first pressure directed toward the elastic member to the trigger member; when the connecting member moves away from the elastic member in the axial direction, the elastic member applies a second pressure directed toward the connecting member to the trigger member; the trigger member moves in the axial direction based on the first pressure and the second pressure. The switch element generates a switch signal based on the movement of the trigger element.

[0006] In the above implementation process, the trigger member is disposed between the elastic member and the external connecting member, and is subjected to first and second pressures in different directions under different motion conditions. Driven by the first and second pressures, the trigger member moves in the axial direction, thereby triggering the switch member disposed on the side of the motion axis through the movement of the trigger member, thereby generating a corresponding switching signal from the switch member. The displacement position of the connecting member can be detected by the force applied to the trigger member, and a corresponding switching signal can be determined based on the actual displacement position of the connecting member. This allows for remote and automatic monitoring of the actual operating status of the valve device in which the connecting member 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 optimizing the sealing effect of the valve device and meeting various current sealing requirements.

[0007] Optionally, the switch element includes: a first switch and a second switch; In the axial direction, the first switch is arranged at a first height; In the axial direction, the second switch is arranged at a second height; There is a height difference between the first height and the second height; Wherein, the height difference is determined based on the movement stroke of the connecting member.

[0008] In the above implementation process, in order to detect different positions of the connecting part to determine the different states of the valve device in which the connecting part is located, two switches can be provided in the switch part, and 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 connecting part, and the movement stroke of the connecting part can be determined according to the different states of the valve device in which the connecting part is located, so that different switches are set at the corresponding trigger positions according to the movement stroke to trigger different types of signals to represent different states, thereby effectively improving the effectiveness and comprehensiveness of the switch signal.

[0009] Optionally, the first switch and the second switch include: a travel device provided with a protruding structure; There is a preset distance between the protruding structure and the outer wall of the connecting member / the outer wall of the elastic member; The edge of the triggering member presses to trigger the raised structure; The protruding structure generates a stroke change based on a pressing trigger, and the stroke device generates the switching signal based on the stroke change.

[0010] In the above implementation process, the first switch and the second switch can both include a travel device provided with a protruding structure, and a preset distance is provided between the protruding structure and the outer wall of the connecting member or the outer wall of the elastic member, so that the connecting member and the elastic member can move freely in the axial direction, and the adverse situation of the connecting member or the elastic member accidentally touching the switch will not occur. When the trigger member moves to the height position corresponding to the protruding structure, the edge of the trigger member can press and trigger the protruding structure, so that the protruding structure produces a stroke change, and the travel device generates a corresponding switch signal based on the generated stroke change. The switch can be triggered by the trigger member pressing the protruding structure, which effectively reduces the structural complexity and triggering cost when the switch is triggered. In addition, the protruding structure does not affect the movement of other devices such as the connecting member or the elastic member in the movement mode, and effectively improves the triggering accuracy of the switch signal.

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

[0012] In the above implementation process, when the trigger member moves to a first height, the trigger member can contact the first switch at the first height to generate a corresponding first signal. When the trigger member moves to a second height, the trigger member can contact the second switch at the second height to generate a corresponding second signal. The trigger member can respond to the actual movement position of the connecting member, thereby triggering a corresponding type of switch signal. The conditions of different positions of the connecting member can be separately detected and fed back, so as to automatically determine the actual working state of the valve device where the connecting member is located according to the type of switch signal.

[0013] In a second aspect, an embodiment of the present application further provides a valve device, comprising: a valve body having a valve port, a valve plate, a control assembly, and any one of the above-mentioned detection assemblies; The control assembly is connected to the valve plate, and is used to drive the valve plate to move to the open position / closed position of the valve port in an axial direction perpendicular to the plane of the valve port; The control assembly is provided with a connecting piece, the connecting piece moves synchronously with the valve plate, and the connecting piece is connected to the detection assembly; The detection component is used to generate a switching signal of the valve port corresponding to the open position and the closed position based on the position of the connecting member.

[0014] In the above implementation process, the valve device is provided with a valve body having 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 in the axial direction so that the valve plate can move to the corresponding open position or closed position. The connecting member provided in the control component moves synchronously with the valve plate. The detection component detects the position of the connecting member to detect the position of the valve plate that moves synchronously with the connecting member, thereby generating a corresponding valve port opening and closing signal when the valve plate reaches the open position and the closed position. The opening and closing of the valve port can be automatically controlled based on the control component, and the opening and closing status of the valve port can be remotely and automatically monitored based on the detection component. There is no need for manual control and detection of the opening and closing of the valve port, which effectively optimizes the sealing performance of the valve device under automatic control, thereby optimizing the sealing effect of the valve device and meeting various current sealing requirements.

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

[0016] In the above implementation process, the control component is provided with a corresponding second shell, a driving motor and a moving part placed in the second shell, and a controller connected to the driving motor. The controller controls the working state of the driving motor to control the movement of the connected moving part in the axial direction through the driving 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 an 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, thereby effectively improving the consistency of movement between the connecting part and the valve plate, thereby improving the accuracy of the valve port state reflected by the detection component based on the switching signal detected by the connecting part.

[0017] Optionally, one end of the connector connected to the detection component is configured as a hollow structure; The detection component is arranged on the second housing, and the connecting member extends out of the second housing and is movably sleeved on the motion axis of the detection component based on the hollow structure; The movement stroke of the connecting member is determined based on the open position and the closed position.

[0018] In the above implementation process, one end of the connecting piece connected to the detection component is set as a hollow structure, the detection component can be fixed on the second shell, the connecting piece extends out of the second shell, and is movably mounted on the moving shaft through the hollow structure, so that the connecting piece can move along the axial direction of the moving shaft, and the movement stroke of the connecting piece in the axial direction can be determined according to the opening position and closing position of the valve port, so as to reflect the position of the valve plate through the position of the connecting piece, thereby determining the actual state of the valve port according to the actual position of the valve plate and the positional relationship between the opening position and the closing position, thereby effectively improving the accuracy of the valve port state reflected by the switching signal.

[0019] Optionally, the inner wall of the second shell is provided with a step structure, and the step structure is used to limit the moving position of the moving member; The setting position of the step structure is determined based on the open position and the closed position.

[0020] In the above implementation process, considering that when the valve plate reaches the open position or the closed position, if the driving force applied to the valve plate is large, the components inside the control component and on the valve plate may be in an adverse situation of overpressure, resulting in deformation, damage, etc. of the components. Therefore, in order to reduce the adverse situation of overpressure, a step structure can be provided inside the second shell of the control component. The setting position of the step structure is determined according to the open position and the closed position, so as to limit the moving position of the moving part through the step structure, thereby ensuring the detection reliability and reducing the damage of 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 member is connected to the driving machine, and one end of the elastic pressure member is connected to the driving member; When the controller determines that the valve port needs to be opened, the driving motor applies a third pressure away from the valve port to the driving member; when the controller determines that the valve port needs to be closed, the elastic pressure member applies a fourth pressure toward the valve port to the driving member based on elastic deformation, and the driving member moves in the axial direction based on the third and fourth pressures; When the valve plate moves to the closed position, the driving member applies a sealing pressure to the valve plate based on the fourth pressure.

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

[0023] Optionally, a metal seal is provided on the valve plate; In the axial direction, the metal seal is arranged at an end of the valve plate away from the control assembly; When the valve port is closed, the metal sealing member 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 provided on the end of the valve plate away from the control component, that is, the end close to the valve port, to seal the valve port and the valve plate when the valve port is closed, thereby achieving a sealed closure of the valve port and optimizing the sealing effect when the valve port is closed. The metal seal has good radiation resistance and is not easily affected by the radioactive material controlled by the valve port, and is suitable for application scenarios in various radiation environments.

[0025] To sum up, the embodiments of the present application provide a detection component and a valve device, which 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. There is no need for manual control and detection of the opening and closing of the valve port, which effectively optimizes the sealing performance of the valve device under automatic control, thereby optimizing the sealing effect of the valve device and meeting various current sealing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

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

[0028] Icons: 100-detection component; 110-first shell; 120-switch member; 130-trigger member; 140-elastic member; 111-moving axis; A-axial direction; 121-first switch; 122-second switch; 123-raised structure; 124-stroke device; h-height difference; 200-valve body; 210-valve port; 220-valve plate; 300-control component; 310-connecting member; 320-second shell; 330-controller; 340-driving machine; 350-moving member; 231-upper valve body; 232-lower valve body; 233-elastic tube; 234-sealing pressure plate; 235-metal gasket; 351-elastic pressure member; 352-driving member; 353-disc spring seat; 221-metal sealing member; 222-valve stem; 223-sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0030] Some parts and materials used in conventional valves lack radiation resistance. For example, the rubber rings used for sealing are easily affected by radiation and can undergo adverse changes such as cross-linking, hardening, degradation, and chain breakage, thereby affecting the sealing effect of the rubber ring when the valve is closed. This does not meet the production requirements of processes involving radiation-containing environments or those that generate radiation. Existing solutions use all-metal valves to address the problem of radiation-induced deterioration of rubber materials. Due to the metallic material properties of all-metal valves, current all-metal valves require manual control. For example, operations to open and close the valves are required, and remote control is not possible. In radiation-containing environments or those that generate radiation, manual control can have an adverse effect on the health of the operator. Furthermore, due to the metallic material properties of all-metal valves, manual control makes it difficult to monitor the valve's open or closed state, making it impossible to guarantee the valve's sealing performance. This results in a poor valve sealing effect that cannot meet current sealing requirements.

[0031] In order to solve the above problems, the embodiments of the present application provide a detection component and a valve device, which 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. There is no need for manual control and detection of the opening and closing of the valve port, which effectively optimizes the sealing performance of the valve device under automatic control, thereby optimizing the sealing effect of the valve device and meeting the current various sealing requirements.

[0032] See also Figure 1 , Figure 1 This is a structural diagram of a detection assembly provided in an embodiment of the present application. The detection assembly may include: a first housing 110, a switch member 120, a trigger member 130, and an elastic member 140; The switch member 120, trigger member 130, and elastic member 140 are disposed within the first housing 110. A motion shaft 111 is disposed within the first housing 110. An external connector 310 is movably mounted on a first end of the motion shaft 111, and the elastic member 140 is mounted on a second end of the motion shaft 111. The first end of the elastic member 140 abuts against the first housing 110, and the second end of the elastic member 140 abuts against the trigger member 130. The trigger member 130 is disposed between the elastic member 140 and the connector 310. The switch member 120 is disposed on a side of the motion shaft 111 in the axial direction A of the motion shaft 111.

[0033] Optionally, when the connecting member 310 moves in the axial direction A toward the elastic member 140, the connecting member 310 applies a first pressure directed toward the elastic member 140 to the trigger member 130. When the connecting member 310 moves in the axial direction A away from the elastic member 140, the elastic member 140 applies a second pressure directed toward the connecting member 310 to 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 connecting member 310 and, under different movement conditions, is subjected to the first and second pressures in different directions. Driven by the first and second pressures, the trigger member 130 moves in the axial direction A. 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 from the switch member 120.

[0034] For example, the first shell 110 can be set as a shell made of various materials, such as a metal shell, a plastic shell, etc. The shape of the first shell 110 can also be determined according to the size of the internally set device and the movement stroke of the connecting member 310. The moving shaft 111 can be set as an axial structure fixed on the inner wall of the first shell 110. The elastic member 140 can be a metal spring (for example, a spring made of 65Mn, etc.) sleeved on the moving shaft 111 and other devices with elastic functions. The trigger member 130 is sleeved on the connecting member 310. The trigger member 130 can be set to a corresponding annular structure based on the actual shape of the outer wall of the connecting member 310, such as a circular ring-shaped metal gasket, washer, etc. The switch member 120 can be set to a photosensitive switch device that detects whether the trigger member 130 passes by or various types of physical switch devices triggered by the contact of the trigger member 130.

[0035] exist Figure 1 In the embodiment shown, the moving position of the connecting member 310 can be detected by the force applied to the trigger member 130, so as to determine the corresponding switching signal according to the actual moving position of the connecting member 310, thereby remotely and automatically monitoring the actual working state of the valve device in which the connecting member 310 is located. There is no need to manually control and detect the switch of the valve device, which effectively optimizes the sealing performance of the valve device under automatic control, thereby optimizing the sealing effect of the valve device and meeting various current sealing requirements.

[0036] Optionally, see Figure 2 , Figure 2 This is a schematic diagram of the structure of another detection assembly provided in an embodiment of the present application. To detect different positions of a connector 310 and determine different states of the valve device in which the connector 310 is located, a switch member 120 may include a first switch 121 and a second switch 122. In the axial direction A, the first switch 121 is positioned at a first height, and the second switch 122 is positioned 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 represent different states of the valve device through the triggering of the first switch 121 and the second switch 122, a height difference h is defined between the first height and the second height. The height difference h can be determined based on the travel of the connector 310. For example, the height difference h can be set to 13 mm. Accordingly, the location 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. The travel of the connector 310 can be determined based on the different states of the valve device in which the connector 310 is located. Therefore, different switches can be set at corresponding trigger positions based on the travel to trigger different types of signals to represent 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 set on both sides of the movement axis 111 or on the same side of the movement axis 111 . The specific setting positions can be determined according to the actual spatial distribution in the first shell 110 .

[0039] Optionally, to reduce the structural complexity and device cost of the detection assembly, the first switch 121 and the second switch 122 may include a travel device 124 having a protruding structure 123. A predetermined distance exists between the protruding structure 123 and the outer wall of the connector 310 or the outer wall of the elastic member 140. The edge of the triggering member 130 presses and triggers the protruding structure 123, causing the protruding structure 123 to change its travel based on the pressure. The travel device 124 generates a switch signal based on this travel change. The predetermined 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 the connector 310 or the elastic member 140 from accidentally triggering the switch. When the triggering member 130 moves to the height corresponding to the protruding structure 123, the edge of the triggering member 130 presses and triggers the protruding structure 123, causing the protruding structure 123 to change its travel. The travel device 124 generates a corresponding switch signal based on this travel change. The switch can be triggered by pressing the protruding structure 123 by the trigger member 130, which effectively reduces the structural complexity and triggering cost when the switch is triggered. The protruding structure 123 does not affect the movement of other devices such as the connecting member 310 or the elastic member 140, thereby effectively improving the triggering accuracy of the switch signal.

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

[0041] For example, the travel device 124 can be a travel switch, which can control the on and off of the circuit through mechanically triggered travel changes, thereby generating a corresponding switching signal. A corresponding bracket can also be set to fix the travel device 124 inside the first shell 110 to provide a stable working environment for the travel device 124.

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

[0043] For example, when the external connection member 310 is a component in a valve device, the first signal may be a signal indicating that the valve port 210 of the valve device is in an open state, and the second signal may be a signal indicating that the valve port 210 of the valve device is in a closed state.

[0044] See also Figure 3 , Figure 3 This is a structural schematic diagram of a valve device provided in an embodiment of the present 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 one of the above embodiments.

[0045] Optionally, the valve device can be configured as a variety of valve types, such as a gate valve, an angle valve, etc. To accommodate applications involving radiation, the embodiments provided herein utilize an angle valve as an example. The valve body 200 of the angle valve is provided with an outlet and an inlet at 90-degree angles, which are connected to different pipelines. These outlets and inlets can be used to control parameters such as the flow rate, pressure, and temperature of the medium to ensure the stability and safety of the production process. For example, angle valves may include: three-way angle valves, brass angle valves, flanged angle valves, piston angle valves, sanitary clamp angle valves, etc.

[0046] Accordingly, in Figure 3In the illustrated angle valve embodiment, the plane of the valve port 210 is perpendicular to the axial direction A. The control assembly 300 is connected to the valve plate 220. In the axial direction A, the control assembly 300 is used to drive the valve plate 220 to move between the open and closed positions of the valve port 210. The valve plate 220 is arranged parallel to the valve port 210. The open and closed positions are both located in the plane of the valve plate 220 in the axial direction A. It should be noted that, considering the radiation characteristics of the material within the valve device, in order to reduce the adverse situation of material leakage outside the valve device and to control the flow rate of the material according to actual conditions, the specific positions of the open and closed positions can be set according to actual conditions.

[0047] It should be noted that the control assembly 300 is provided with a connector 310, which moves synchronously with the valve plate 220. The connector 310 is connected to the detection assembly 100. The detection assembly 100 is used to generate a switching signal for the valve port 210 corresponding to the open position and the closed position based on the position of the connector 310. The control assembly 300 can drive the valve plate 220 to move in the axial direction A so that the valve plate 220 can move to the corresponding open position or closed position. The connector 310 provided in the control assembly 300 moves synchronously with the valve plate 220. The detection assembly 100 detects the position of the connector 310 to detect the position of the valve plate 220 that moves synchronously with the connector 310, thereby generating a corresponding switching signal for the valve port 210 when the valve plate 220 reaches the open position or the closed position. The opening and closing of the valve port 210 can be automatically controlled based on the control component 300, and the opening and closing status of the valve port 210 can be remotely and automatically monitored based on the detection component 100. There is no need to manually control and detect the opening and closing of the valve port 210, which effectively optimizes the sealing performance of the valve device under automatic control, thereby optimizing the sealing effect of the valve device and meeting various current sealing requirements.

[0048] Optionally, see Figure 4 , Figure 4 This is a detailed structural diagram of a valve device provided in an embodiment of the present application, wherein the control component 300 may further include: a second shell 320 , a controller 330 , a driving motor 340 and a moving part 350 .

[0049] The driving motor 340 and the moving member 350 are disposed within the second housing 320, and the controller 330 is disposed on the second housing 320. The controller 330 is connected to the driving motor 340 and is used to control the operating state of the driving motor 340. The driving motor 340 is connected to the moving member 350 and is used to control the position of the moving member 350 in the axial direction A based on the operating state. The first end of the moving member 350 is connected to the valve, and the second end of the moving member 350 is connected to the end of the connecting member 310 away from the detection assembly 100. The moving member 350 is used to drive the valve and the connecting member 310 to move in the axial direction A. The controller 330 controls the working state of the driving motor 340 to control the movement of the connected movable member 350 in the axial direction A through the driving motor 340, thereby controlling the position of the movable member 350 in the axial direction A. The first end of the movable member 350 is connected to the valve, and the second end is connected to the end of the connecting member 310 away from the detection component 100, so that the movement of the movable member 350 drives the connected valve plate 220 and the connecting member 310 to move synchronously in the axial direction A, effectively improving the consistency of movement between the connecting member 310 and the valve plate 220, thereby improving the accuracy of the valve port 210 state reflected by the detection component 100 based on the switching signal detected by the connecting member 310.

[0050] For example, the driving motor 340 can be set as a corresponding cylinder device, and the position of the movable part 350 is controlled by controlling the on and off of the air source. The controller 330 can be a device such as a solenoid valve, which is connected to a power supply and can control the on and off of the power supply in the driving motor 340 by whether the solenoid valve is energized. The movable part 350 may include corresponding sliders, pistons and other devices that can realize the position movement function.

[0051] Optionally, one end of the connecting member 310 connected to the detection component 100 is set as a hollow structure, the detection component 100 is set on the second shell 320, the connecting member 310 extends out of the second shell 320, and is movably mounted on the moving shaft 111 of the detection component 100 based on the hollow structure, so that the connecting member 310 can move along the axial direction A of the moving shaft 111.

[0052] For example, the connecting member 310 may be configured as a corresponding rod-shaped structure, and the hollow structure may include a hollow round rod, wherein the size and shape of the hollow area in the round rod are configured 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 may be configured as an integrated housing or as detachable separate housings.

[0054] It should be noted that, in the axial direction A, the movement stroke of the connecting member 310 is determined based on the open position and the closed position. For example, the movement stroke can be the distance between the open position and the closed position in the axial direction, that is, the switching stroke of the valve plate 220. The switching stroke of the valve plate 220, the movement stroke of the connecting member 310 and the height difference h between the two switches in the detection component 100 are all equal. The switching stroke 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 40 mm, 13 mm, which is approximately one-third of the diameter, can be selected as the switching stroke of the valve plate 220 based on the design principle of the valve, so as to reflect the position of the valve plate 220 through the position of the connecting member 310, thereby determining the actual state of the valve port 210 according to the actual position of the valve plate 220 and the positional relationship between the open position and the closed position, thereby effectively improving the accuracy of the valve port 210 state reflected by the switching signal.

[0055] Optionally, the valve body 200 may include a corresponding 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 may be in the form of a CF flange. Considering the relative movement of the valve plate 220 on the upper valve body 231, in order to reduce the adverse situation that the material inside the valve overflows to the outside, a corresponding elastic tube 233 may be provided, such as a bellows made of metal. One end of the bellows is fixed to the valve plate 220, and the other end is fixed to the lower valve body 232. 1 is sealed between the upper valve body 231 and the lower valve body 232. A sealing pressure plate 234 and a metal gasket 235 can also be provided at the connection position between the bellows and the lower valve body 232 for sealing. When substances enter from the gap between the upper valve body 231 and the lower valve body 232, sealing can be performed based on the bellows to reduce leakage of substances in the valve device and reduce the situation where air enters the interior of the valve device from the outside, thereby reducing the adverse effect of air on the vacuum degree inside the valve device. It is suitable for a variety of vacuum valve devices with vacuum requirements.

[0056] It should be noted that, considering that when the valve plate 220 reaches the open position or the closed position, if the driving force applied to the valve plate 220 is large, the components inside the control assembly 300 and on the valve plate 220 may be subject to adverse overpressure conditions, resulting in deformation, damage, etc. of the components. For example, when the valve plate 220 reaches the closed position, the pressure applied by the control assembly 300 is too great, causing the valve plate 220 to continue to approach the valve port 210, thereby causing the bellows to be overstretched. Alternatively, when the valve plate 220 reaches the open position, the pressure applied by the control assembly 300 is too great, causing the valve plate 220 to continue to move away from the valve port 210, causing the movable member 350 to be overcompressed. Therefore, in order to reduce the adverse conditions of overpressure, the inner wall of the second housing 320 can be provided with a step structure, which is used to limit the movement position of the movable member 350. The position of the step structure is determined based on the open position and the closed position. By limiting the movement position of the movable member 350 through the step structure, damage to the components caused by overpressure is reduced while ensuring detection reliability, thereby effectively extending the service life of the valve device.

[0057] Optionally, the moving member 350 may include an elastic pressure member 351 and a driving member 352. The driving member 352 is connected to the driving 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 driving 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 directed toward 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 pressure and the fourth pressure. 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 driver 340 can apply a third pressure away from the valve port 210 to the driver 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 toward the valve port 210 to the driver 352 based on its elastic deformation, so that the driver 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. This can realize the corresponding opening and closing functions of the valve port 210 according to the actual control requirements of the valve port 210, effectively improving the efficiency of the on-off control of the valve port 210. Furthermore, when the valve plate 220 moves to the closed position, the driver 352 can continue to apply a sealing pressure to the valve plate 220 based on the fourth pressure applied by the elastic pressure member 351, thereby optimizing the sealing effect when the valve port 210 is closed and reducing the adverse situation of the material in the valve port 210 overflowing the valve port 210.

[0058] Optionally, the valve port 210 opening demand and the valve port 210 closing demand can be sent to the controller 330 via remote network communication, so that the controller 330 parses the sent demand instructions and converts the parsed valve port 210 opening demand and valve port 210 closing demand into an on-off signal of the gas source.

[0059] For example, the driving member 352 can be set as a piston or other device that can move due to changes in gas pressure in the second shell 320, and the elastic pressure member 351 can be set as a disc spring or other device that can be squeezed and push the driving member 352 to move. The disc spring can be set on the corresponding disc spring seat 353, and the piston abuts against the end of the disc spring seat 353 close to 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 step structure provided on the inner wall of the second shell 320 may include multiple step structures to respectively limit the two positions of the driving member 352 corresponding to the open position and the closed position, and the position of the elastic pressure member 351 close to one end of the detection component 100.

[0061] Optionally, a metal seal 221 is provided on the valve plate 220. In the axial direction A, the metal seal 221 is provided at one end of the valve plate 220 away from the control assembly 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 a sealed closure of the valve port 210 and optimizing the sealing effect when the valve port 210 is closed. The metal seal 221 has good radiation resistance and is not easily affected by the radioactive material controlled by the valve port 210. It is suitable for application scenarios in various radiation environments.

[0062] For example, the valve plate 220 can be connected to the control component 300 through a corresponding connecting rod such as a valve stem 222. The valve stem 222 is parallel to the axial direction A and is welded and fixed to the valve plate 220 perpendicular to the valve plate 220. 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 through the valve stem 222.

[0063] It should be noted that in order to be used in an environment with radiation, the valve body 200, valve plate 220 and multiple devices provided on the valve body 200 and valve plate 220 that are closely related to the radiation material in the valve device in the embodiment of the present application 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 the embodiment of the present application adopts an all-metal sealing structure, and the sealing performance of the valve in its natural state is ensured by applying pressure through a disc spring. Then, by connecting the air source, the pressure of the air source is used to push the valve open, and the step structure on the inner wall of the second shell 320 is used for limiting, so as to avoid overpressure on the disc spring and the bellows, which would affect the life of the valve. Based on the open position and closed position of the valve port 210, a corresponding switch 120 is provided in the detection assembly to provide feedback on the open and closed states of the valve. This valve device, while having the function of radiation resistance, can also achieve sealing of the vacuum chamber, and can be remotely monitored and controlled, and is suitable for processes containing radiation environments or generating radiation.

[0065] It should be noted that in the axial direction A, the disc spring provides a fourth pressure directed toward the valve port 210, acting as a downward sealing force on the valve plate 220, thereby closing and sealing the valve port 210. When the air source is connected, the piston is subjected to the upward force of the air source, and the third pressure overcomes the fourth pressure of the disc spring, driving the valve plate 220 upward, thereby opening the valve port 210. When the valve port 210 is closed, the trigger member 130 within the detection assembly presses the second switch 122 120, generating a second signal as the fully closed position signal. When the valve port 210 is open, the trigger member 130 within the detection assembly presses the first switch 121 120, generating a first signal as the fully open position signal.

[0066] For example, the actual working process of the valve device may include: the switch member 120 is continuously energized to provide feedback on the valve opening and closing position. The solenoid valve can be connected to a remotely controlled control device, which controls the on / off power of the solenoid valve, thereby controlling the on and off of the gas source in the cylinder. The cylinder air port is connected to the solenoid valve, and the solenoid valve is connected to the gas source. Keep the gas source open, the solenoid valve energized, the cylinder air port ventilated, the piston moves away from the valve port 210, and a third pressure is applied to drive the valve plate 220 away from the sealing surface of the valve port 210 until the valve is fully opened. 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 to move away from the valve port. When the valve is fully opened, the trigger member 130 presses the first switch 121 to obtain a first signal. When the solenoid valve is de-energized and the cylinder air port is cut off, the piston moves toward the valve port 210 under the action of the fourth pressure exerted by the disc spring, pushing the valve plate 220 toward the valve port 210 until the valve plate 220 reaches the sealing surface corresponding to the valve port 210. Under the action of the fourth pressure, the metal sealing ring is slightly squeezed and deformed, sealing the sealing surface of the valve port 210. During the valve closing process, the connector 310 moves toward the valve port 210 under the action of the elastic member 140, pushing the trigger member 130 toward the valve port 210. When the valve is fully closed, the lower end of the connector 310 also contacts the top surface of the second housing 320, and the trigger member 130 presses the second switch 122, generating a second signal.

[0067] The valve device provided in the embodiment of the present application adopts an all-metal seal for valve sealing, which has excellent radiation resistance. It adopts a gas-driven method, which is easy to operate and quick to move, and can realize remote control of the valve, thereby preventing the operator from being exposed to a radiation-containing environment and avoiding radiation damage to the operator. The elastic pressure piece 351 has the characteristics of generating large pressure with small displacement and having a certain buffering performance when the displacement changes. While ensuring the sealing of the valve, the displacement requirement for valve opening is met by utilizing the superposition of the displacement of the matching combination. At the same time, when the valve is closed, due to the buffering performance of the elastic pressure piece 351, the impact of the metal sealing ring at the moment of valve sealing is reduced, thereby reducing damage to the metal sealing ring and extending the service life of the valve. Based on the connection member 310 driving the trigger member 130 to move to achieve position feedback, an elastic member 140 is provided. The second pressure provided by the elastic member 140 acts on the trigger member 130, thereby improving the reliability of the position of the trigger member 130. When the valve is opened, the connection member 310 is pushed by the control component 300, and the connection member 310 moves synchronously with the valve plate 220. When the valve is opened to the full extent, the upper end surface of the connection member 310 can also abut against the top inner wall of the first shell 110. This mechanical limit enables the trigger member 130 to just reach the first height when the valve is opened, and can accurately touch and press the first switch 121, thereby outputting the first signal. When the valve is closed, the control assembly 300 moves toward the valve port 210. The connector 310 loses its support and, under the action of the elastic member 140, moves toward the valve port 210. When the valve is closed, the bottom surface of the step on the connector 310 also reaches the upper end surface of the second housing 320. Due to the presence of the step on the connector 310, the connector 310 no longer moves downward, and the trigger 130 simultaneously reaches the second height, contacting and pressing the second switch 122, outputting a second signal. Due to the slight compression and deformation of the metal sealing ring when the valve is closed and sealed, the disc spring seat 353 moves downward a small distance. This structure ensures that the trigger 130 does not move downward after reaching the second height. This ensures that signals are output for both the open and closed positions of the valve, ensuring the effectiveness and reliability of position feedback.

[0068] In addition, the various parts in the various embodiments of the present application can be integrated together to form an independent part, or each part can exist separately, or two or more parts can be integrated to form an independent part.

[0069] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0070] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

[0071] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, the elements defined by the statement "includes..." do not exclude the presence of other identical elements in the process, article, or device comprising the elements.

Claims

1. A detection component, characterized in that: The detection assembly includes: a first housing, a switch member, a trigger member and an elastic member; The switch member, the trigger member and the elastic member are arranged in the first housing; A motion shaft is provided in the first housing, an external connecting member is movably sleeved on a first end of the motion shaft, and an elastic member is sleeved on a second end of the motion shaft; the first end of the elastic member abuts against the first housing, and the second end of the elastic member abuts against the trigger member, and the trigger member is provided between the elastic member and the connecting member; In the axial direction of the motion shaft, the switch element is arranged on the side of the motion shaft; When the connecting member moves in the axial direction toward the elastic member, the connecting member applies a first pressure directed toward the elastic member to the trigger member; when the connecting member moves away from the elastic member in the axial direction, the elastic member applies a second pressure directed toward the connecting member to the trigger member; the trigger member moves in the axial direction based on the first pressure and the second pressure. The switch element generates a switch signal based on the movement of the trigger element.

2. The detection component according to claim 1, characterized in that in, The switch element includes: a first switch and a second switch; In the axial direction, the first switch is arranged at a first height; In the axial direction, the second switch is arranged at a second height; There is a height difference between the first height and the second height; Wherein, the height difference is determined based on the movement stroke of the connecting member.

3. The detection component according to claim 2, characterized in that in, The first switch and the second switch include: a travel device provided with a protruding structure; There is a preset distance between the protruding structure and the outer wall of the connecting member / the outer wall of the elastic member; The edge of the triggering member presses to trigger the raised structure; The protruding structure generates a stroke change based on a pressing trigger, and the stroke device generates the switching signal based on the stroke change.

4. The detection component according to claim 2, characterized in that in, The switch signal includes a first signal and a second signal; When the trigger member moves to the first height, the trigger member contacts the first switch to generate the first signal; When the trigger member moves to the second height, the trigger member contacts the second switch and generates the second signal.

5. A valve device, characterized in that: The valve device comprises: a valve body having a valve port, a valve plate, a control component, and a detection component according to any one of claims 1 to 4; The control assembly is connected to the valve plate, and is used to drive the valve plate to move to the open position / closed position of the valve port in an axial direction perpendicular to the plane of the valve port; The control assembly is provided with a connecting piece, the connecting piece moves synchronously with the valve plate, and the connecting piece is connected to the detection assembly; The detection component is used to generate a switching signal of the valve port corresponding to the open position and the closed position based on the position of the connecting member.

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

7. The valve device according to claim 6, characterized in that in, One end of the connector connected to the detection component is configured as a hollow structure; The detection component is arranged on the second housing, and the connecting member extends out of the second housing and is movably sleeved on the motion axis of the detection component based on the hollow structure; The movement stroke of the connecting member is determined based on the open position and the closed position.

8. The valve device according to claim 6, characterized in that in, The inner wall of the second shell is provided with a step structure, and the step structure is used to limit the moving position of the moving member; The setting position of the step structure is determined based on the open position and the closed position.

9. The valve device according to claim 6, characterized in that in, The moving part includes: an elastic pressure part and a driving part; The driving member is connected to the driving machine, and one end of the elastic pressure member is connected to the driving member; When the controller determines that the valve port needs to be opened, the driving motor applies a third pressure away from the valve port to the driving member; when the controller determines that the valve port needs to be closed, the elastic pressure member applies a fourth pressure toward the valve port to the driving member based on elastic deformation, and the driving member moves in the axial direction based on the third and fourth pressures; When the valve plate moves to the closed position, the driving member applies a sealing pressure to the valve plate based on the fourth pressure.

10. The valve device according to claim 5, characterized in that in, A metal seal is provided on the valve plate; In the axial direction, the metal seal is arranged at an end of the valve plate away from the control assembly; When the valve port is closed, the metal sealing member is used to seal the valve port and the valve plate.

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