On-off control device

Abstract

The present application belongs to the field of line protection and control, and relates to a kind of on-off control device, mainly including motion control component (1), power control component (2), position detection component (3), conduction component (4), support component (5) and fastening component (6). The on-off control device has functions such as line switch, power control, position detection and position indication, and has the characteristics of small size and light weight with high reliability of the whole machine and reduced redundant structure design and use.

Description

Technical Field

[0001] The on / off control device involved in this invention is mainly used in the field of line protection and control, specifically an electromechanical integrated product. Through the movement and position switching of the internal structure of the control device, it can realize the connection, disconnection, and power control of the line. Simultaneously, the internal structure of the product can realize the position detection of the internal structure of the control device and the indication of the product's on / off status. Background Technology

[0002] With the continuous development of aircraft, other aircraft and spacecraft, the demand for improving the energy conversion efficiency of related power distribution equipment has led to increasingly higher technical requirements for power distribution equipment, such as reducing its size and weight and improving the reliability of electrical systems. At the same time, the complexity and variability of the application environment have continuously increased the requirements for products to be resistant to damp heat, salt spray, oil and grease and acidic atmosphere.

[0003] Currently, the position detection function of common control devices mainly falls into two categories. One involves adding sensors to commonly used electromagnetic relays, circuit breakers, or contactors to achieve product position detection. The other involves adding mechanical modules to the product to achieve position detection mechanically. Sensor-based detection primarily involves adding related electronic detection mechanisms and circuits to the existing device structure, inevitably increasing the product's size and weight. Furthermore, this design lacks integration and structural versatility, increasing redundant design across different products and wasting design resources. Mechanical modules offer versatility and standardization, and offer high reliability; however, traditional mechanical modules present challenges in component manufacturing and require high precision during assembly. Therefore, designing a position detection module that is easy to assemble, manufacture, and highly reliable is crucial.

[0004] To improve the resistance of on / off control devices to damp heat, salt spray, grease, and acidic atmospheres, the common approach is to add protective covers or bellows structures to the product buttons or operating positions. Both methods increase the structural complexity of the buttons or operating positions, and the position indication function is not obvious, making it difficult to observe the product status position.

[0005] Therefore, it is particularly important to design an on / off control device that is small in size, light in weight, highly reliable, has a status detection function, and provides clear status indication. Such an on / off control device is in great demand in the aviation or aerospace field. Summary of the Invention

[0006] To integrate switching devices, protective devices, and position detection functions, the weight and size of the product are reduced through optimized component layout. Simultaneously, it enables circuit continuity, disconnection, and overload protection, as well as functions such as body position detection and position indication, through integrated design.

[0007] Technical solution

[0008] This invention provides an on / off control device. The on / off control device includes a motion control component 1, a power control component 2, a position detection component 3, a transmission component 4, and a support component 5.

[0009] The motion control component 1 controls the connection and disconnection of the power control component 2 and the conduction component 4, provides the contact pressure during the connection process, and provides the status indication of the entire control device. The power control component 2 is used to realize line power control and load line current conduction, and cooperates with the motion control component 1 to realize the position detection of the power control component 2. The position detection component 3 is used to detect the position of the power control component 2. The conduction component 4 is used to connect with the external load line and provide the connection and disconnection control device with the load line current conduction. The support component 5 is used to provide positioning for the motion control component 1 and the conduction component 4.

[0010] The motion control component 1 is installed in the middle of the inner cavity of the support component 5. Its upper end extends out from the center hole of the upper end face of the support component 5 and is fixed on the support component 5. Its lower end serves as the sliding track of the power control component 2, and works in conjunction with the power control component 2 to perform reciprocating motion. It is installed on the bottom surface of the inner cavity of the support component 5.

[0011] The position detection component 3 is installed on the side wall of the support component 5. The probes 32 of the position detection component 3 extend outward and inward from the side wall respectively. The probes extending inward are connected with the power control component 2 in coordination with the reciprocating motion. The upper end of the conduction component 4 is installed inside the lower end of the support component 5, and the lower end of the conduction component 4 is outside the support component 5. The upper end of the conduction component 4 is connected with the power control component 2 in coordination with the reciprocating motion.

[0012] When the conductive component 4 is on, the position detection component 3 is off; when the conductive component 4 is off, the position detection component 3 is on.

[0013] In this on / off control device, the motion control component 1 includes: a pull button 11, a storage spring 13, a positioning component 14, a locking plate component 15, a latch adjustment mechanism 16, and a tension spring 19. The pull button 11 is located at the end of the motion control component 1. The pull button 11 passes through the positioning sleeve of the positioning component 14. The positioning sleeve is located in the center of the positioning plate of the positioning component 14. The positioning plate is sealed and fastened to the upper end face of the support component 5. The lower part of the pull button 11 passes through the locking plate component 15 and is connected to the hook piece 165 on the latch adjustment mechanism 16. Tension springs 19 are respectively hung on both sides of the locking plate component 15. The other end of the tension spring 19 cooperates with the power control component 2.

[0014] The on / off control device also includes a status indicator ring 12, which is disposed between the pull button 11 and the storage spring 13. The pull button 11 passes through the status indicator ring 12 in the middle. The lower end of the status indicator ring 12 cooperates with the storage spring 13. A sealing ring 17 is located on the locking plate component 15 of the positioning member 14. One end of the sealing ring 17 is connected to the lower end of the status indicator ring 12, and the other end is connected to the positioning member 14. The positioning member 14 is located on the upper end of the locking plate component 15. A sealing gasket 18 is located between the positioning member 14 and the locking plate component 15. The lower end of the status indicator ring 12 cooperates with the storage spring 13 and can move axially within the middle inner hole of the positioning member 14.

[0015] In this on / off control device, the power control component 2 includes a connecting piece 21, a sensitive element 22, a moving contact component 24, a position control bracket 25, a position control component 26, and a position detection piece 28. The moving contact component 24 is distributed on both sides of the power control component 2 and is used to contact the conducting component 4 and conduct the load current. The sensitive element 22 is located in the middle of the power control component 2 and is used to conduct the load current. When the load current exceeds a certain limit, thermal deformation occurs. The position control bracket 25 is distributed on both sides of the sensitive element 22, with one end connected to the sensitive element 22 and the other end connected to the moving contact component 24. It is used to maintain the position of the moving contact component 24. The position detection piece 28 is installed on the upper end of the moving contact component 24 and is used to cooperate with the position detection component 3 to realize the position detection of the power control component 2.

[0016] In this on / off control device, the power control component 2 also includes an adjustment plate 23, which is installed at the mating position of the position control bracket 25 and the moving contact component 24. It is used to adjust the contact pressure between the moving contact component 24 and the conductive component 4, and to isolate the heat between the moving contact component 24 and the position detection plate 28.

[0017] In this on / off control device, the power control component 2 also includes a connecting line 27, which is distributed on both sides of the sensitive element 22 and is used to connect the sensitive element 22 and the moving contact component 24.

[0018] In this on / off control device, the power control component 2 also includes a position control component 26, which is fixed to both sides of the lower end of the sensitive element 22 to constrain the lateral displacement of the power control component 2.

[0019] In this on / off control device, the position detection component 3 consists of a base 31, a probe 32 and a standard component 33. The probe 32 is fixed on the base 31, one end of the probe 32 extends out of the base 31 and is connected to the standard component 33, and the other end extends out of the base 31 and cooperates with the position detection piece 28.

[0020] In this on / off control device, the probe 32 of the position detection component 3 includes a telescopic head 321, a metal ball 322, a micro-motion spring 323, and a conductive substrate 324. One end of the conductive substrate 324 is threaded, and the other end is an internal blind hole. The telescopic head 321, the metal ball 322, and the micro-motion spring 323 are sequentially installed in the middle of the internal blind hole of the conductive substrate 324, with the micro-motion spring 323 contacting the top of the internal blind hole of the conductive substrate 324. The telescopic head 321 can move along the axis of the internal blind hole of the conductive substrate 324 under the action of external force and the micro-motion spring 323. During the movement of the telescopic head 321, the metal ball 322 rolls along the upper slope of the telescopic head 321 to ensure the continuity between the telescopic head 321 and the conductive substrate 324. The micro-motion spring 323 is used to provide the force for the telescopic head 321 to restore its position. The threaded end of the conductive substrate 324 is connected to the standard part 33.

[0021] In this on / off control device, the conductive component 4 includes a stationary contact 41, a connecting piece 42, a self-locking sleeve 43, and a standard component 44. The stationary contact 41 is installed on the upper end of the connecting piece 42 and is used to cooperate with the moving contact component 24 in the power control component 2 to realize current conduction. The upper end of the connecting piece 42 is installed inside the support component 5, and the lower end of the connecting piece 42 is installed with the self-locking sleeve 43. The standard component 44 is installed on the self-locking sleeve 43 and is used to fix the external load wire and realize the load current conduction with the connecting piece 42.

[0022] In this on / off control device, the support component 5 includes an upper housing 51 and a lower housing 52. The upper housing 51 has a concave structure in the middle, with two symmetrical protrusions 511 in the middle. The symmetrical protrusions 511 limit the swaying of the power control component 2 in the support component 5 and guide the power control component 2 up and down. The lower end of the upper housing 51 has irregularly shaped grooves 512 on both sides, which are used to fix the upper end of the connector 42. The lower end of the upper housing 51 has a square groove 513 and a circular groove 514 in the middle part. The circular groove 514 is used for product assembly positioning. The square groove 513 is used to cooperate with the locking adjustment mechanism 16 to limit the movement of the motion control component 1 in the support component 5. The upper housing 51 has a shaped groove 515 on one side of its upper end, which is used to fix the position detection component 3; the upper middle part of the upper housing 51 has a shaped groove 516, which is used to cooperate with the locking plate component 15 to limit the shaking of the motion control component 1 in the support component 5; the upper housing 51 has four through holes 517, which are used to cooperate with the fastening component 6 to fix the positions of the upper housing 51 and the lower housing 52; the upper end of the upper housing 51 has two blind holes 518, which are used to cooperate with the fastening component 6 to fix the positioning component 14 on the upper housing 51.

[0023] In this on / off control device, the lower housing 52 of the support component 5 has a reverse symmetrical structure with the upper housing 51. The lower housing 52 has all the same structure and functions as the upper housing 51. The lower housing 52 and the upper housing 51 are fixed by fastening component 6.

[0024] In this on / off control device, the locking adjustment mechanism 16 of the motion control component 1 includes a locking spring 161, a rivet 162, a steel ball 163, an adjusting screw 164, a hook piece 165, a mounting base 166, and an anti-loosening block 167. The hook piece 165 is fixed to one end of the mounting base 166, the locking spring 161 is fixed to both ends of the middle part of the mounting base 166 by the rivet 162, the steel ball 163 is installed in the through hole 1661 in the middle part of the mounting base 166, the anti-loosening block 167 is installed in the square hole 1662 at the bottom of the mounting base 166, and the adjusting screw... 164 passes through the bottom hole 1663 of the mounting base 166 and through the anti-loosening block 167. The top of the adjusting screw 164 abuts against the two steel balls 163. The adjusting screw 164 can rotate forward and backward along the axis of the locking adjustment mechanism 16 under the action of the tool. When the adjusting screw 164 moves forward, the two steel balls 163 abut against the two end retaining springs 161 respectively, and the retaining springs 161 turn outward. When the adjusting screw 164 moves backward, the two steel balls 163 reduce the action of abutting the two end retaining springs 161, and the retaining springs 161 turn inward.

[0025] In this on / off control device, the motion control component 1 also includes a sealing ring 17. The sealing ring 17 and the locking plate component 15 are located in the middle of the motion control component 1. One end of the sealing ring 17 is connected to the lower end of the status indicator ring 12, and the other end is connected to the positioning component 14.

[0026] The sealing ring 17 is a columnar structure with a through hole inside. The sealing ring 17 has a telescopic characteristic and can move up and down along the axial direction of the positioning member 14 with the indicator ring 12 under the action of the status indicator ring 12.

[0027] In this on / off control device, the motion control component 1 also includes a sealing gasket 18, which is located between the positioning component 14 and the locking plate component 15.

[0028] This invention provides an on / off control device that integrates switching, protective, and position detection functions. Through optimized component layout, it reduces product weight and size while providing circuit continuity, disconnection, and overload protection, as well as body position detection and indication. The device features a novel protective structure that prevents liquids, gases, and microparticles from entering the product, allowing it to be used near engines, transmissions, and fuel tanks. This protective mechanism also makes the product suitable for marine or dusty environments. This design significantly expands the product's application scenarios and enhances its environmental adaptability. Attached Figure Description

[0029] Figure 1 Internal structure fit diagram of on / off control device maintaining state

[0030] Figure 2 Internal structure diagram of the on / off control device in the off state

[0031] Figure 3 Schematic diagram of the on / off control device

[0032] Figure 4 Motion control component structure diagram

[0033] Figure 5 Diagram showing the sealing ring mating in the product's disconnected state.

[0034] Figure 6 Power control component structure diagram

[0035] Figure 7 Exploded view of power control component structure

[0036] Figure 8 Position detection component structure diagram

[0037] Figure 9 Cross-sectional view of position detection component structure

[0038] Figure 10 Schematic diagram of conductive component structure

[0039] Figure 11 Support component structure diagram

[0040] Figure 12 upper shell structure diagram

[0041] Figure 13 upper shell structure diagram

[0042] Figure 14 Schematic diagram of trip adjustment mechanism

[0043] Figure 15 Cross-sectional view of the trip adjustment mechanism

[0044] Figure 16 Mounting base structure diagram

[0045] Figure 17 Schematic diagram of sealing ring structure Detailed Implementation

[0046] The present invention will be further described below with reference to embodiments. The following description represents only a portion of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0047] The on / off control device of this invention has functions such as line switching, power control, remote control, position detection and position indication. It reduces redundant structural design and use, has high overall reliability, and features small size and light weight.

[0048] The on / off control device of this invention is connected to the process, such as... Figure 1 As shown, the specific process can be summarized as follows:

[0049] When the pull button (11) in the motion control component (1) moves downward along the axial direction of the motion control component (1), the pull button (11) drives the latch adjustment mechanism (16) to move downward. At this time, the locking spring (161) in the latch adjustment mechanism (16) contacts the sensitive element (22) in the power control component (2). The pull button (11) drives the entire control component (2) to move downward. When the moving contact component (24) in the power control component (2) contacts the stationary contact (41) in the conduction component (4) to a certain position and reaches the predetermined contact pressure, the mechanism in the locking plate component (15) contacts the pull button (11) and the latch piece (165) to achieve the latching state. Thus, the entire on / off control device is in the on state, and the load current passes through the conduction component (4) and the power control component (2), thereby realizing the conduction of the entire load circuit. At this time, the power control component (2)'s storage spring (13) is in a compressed state, the tension spring (19) is in a stretched state, and the status indicator ring (12) and sealing ring (17) are retracted into the positioning component (14). When the product is in the connected state, the micro-motion spring (323) in the probe (32) of the position detection component (3) is in an extended state. Under the action of the micro-motion spring (323), the end of the telescopic head (321) is moved away from the conductive substrate (324). At this time, the telescopic head (321) is separated from the position detection piece (28) in the power control component (2). In this state, the detection current cannot pass through the position detection component (3) and the position detection piece (28), so the detection circuit is in the disconnected state. The locking positions of the locking plate component (15), the pull button (11), and the hook piece (165) are roughened by capillary treatment to improve the locking degree of the entire device, prevent the product from being disconnected due to external vibration, impact, and acceleration, and improve the product's vibration resistance.

[0050] The disconnection process of the on / off control device of this invention is divided into manual disconnection and automatic protection disconnection, such as... Figure 2 As shown, the specific method is as follows:

[0051] When the load current exceeds a certain limit, the sensitive element (22) undergoes thermal deformation. When the sensitive element (22) deforms to a predetermined degree, the retaining spring (161) separates from the sensitive element (22). In this state, the storage spring (13) changes from a compressed state to an extended state, driving the entire motion control component (1) axially away from the support component (5). During the movement of the motion control component (1), the tension spring (19) changes from a stretched state to an initial state, and the tension spring (19) drives the entire power control component (2) axially away from the conduction component (4) of the motion control component (1). When the power control component (2) and the conduction component (4) separate, the entire load circuit changes from a conductive state to a disconnected state. Due to the cooperation between the irregular grooves (516) in the upper housing (51) and the lower housing (52) and the locking plate component (15), and the cooperation between the blind holes (518) at the upper end of the upper housing (51) and the lower housing (52) and the positioning component (14), the entire motion control component (1) stops after reaching the predetermined position and remains stationary with the support component (5). During the movement of the motion control component (1), the status indicator ring (12) and the sealing ring (17) change from being retracted into the positioning component (14) to being disengaged from the positioning component (14) under the action of the storage spring (13). During the movement of the motion control component (1) and the power control component (2), the position detection plate (28) contacts the telescopic head (321), and the telescopic head (321) drives the metal ball 322 and the micro-motion spring 323 to move into the conductive substrate (324). At this time, the micro-motion spring 323 changes from an extended state to a compressed state. When the micro-motion spring 323 is compressed, it provides contact pressure between the telescopic head (321) and the position detection plate (28), ensuring contact between the telescopic head (321) and the position detection plate (28). The position detection plate (28) is maintained in contact with the telescopic head (321) by the combined action of the tension spring (19) and the storage spring (13). At this time, the detection current passes through the position detection component (3) and the position detection plate (28), thus the detection circuit changes from the open state to the closed state.

[0052] When an external force pulls the pull button (11) in the motion control component (1) upward along the axial direction of the motion control component (1), the locking mechanism in the locking plate component (15) and the locking state of the pull button (11) and the hook plate (165) are disrupted. The product changes from the on state to the off state, and the detection circuit changes from the off state to the on state.

[0053] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein. The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An on / off control device, characterized in that, include: Motion control components, power control components, position detection components, transmission components, and support components; The motion control component controls the connection and disconnection between the power control component and the conduction component, provides the contact pressure during the connection process, and provides status indication of the entire control device. The power control component controls the line power and the load line current, and works with the motion control component to detect the position of the power control component. The position detection component detects the position of the power control component. The conduction component connects to the external load line, providing the connection and disconnection control device with the load line current. The support component provides positioning for the motion control component and the conduction component. The motion control component is installed in the middle of the inner cavity of the support component. Its upper end extends out from the center hole of the upper end face of the support component and is fixed on the support component. Its lower end serves as the sliding track of the power control component, which reciprocates in coordination with the power control component. It is installed on the bottom surface of the inner cavity of the support component. The position detection component is installed on the side wall of the support component. The probes of the position detection component extend outward and inward from the side wall respectively. The probes extending inward are connected to the power control component in coordination with the reciprocating motion. The upper end of the conduction component is installed inside the lower end of the support component, and the lower end of the conduction component is outside the support component. The upper end of the conduction component is connected to the power control component in coordination with the reciprocating motion. When the conductive component is on, the position detection component is off; when the conductive component is off, the position detection component is on.

2. The on / off control device according to claim 1, characterized in that, The motion control components include: Pull button, energy storage spring, positioning component, locking plate component, latch adjustment mechanism, tension spring; the pull button is located at the end of the motion control component, the pull button passes through the positioning sleeve of the positioning component, the positioning sleeve is located in the center of the positioning plate of the positioning component, the positioning plate is sealed and fastened to the upper end face of the support component, the lower part of the pull button passes through the locking plate component and is connected to the hook piece on the latch adjustment mechanism, tension springs are respectively mounted on both sides of the locking plate component, and the other end of the tension spring cooperates with the power control component.

3. The on / off control device according to claim 2, characterized in that, It also includes a status indicator ring, which is disposed between the pull button and the storage spring; the pull button passes through the status indicator ring in the middle, the lower end of the status indicator ring cooperates with the storage spring, a sealing ring is located on the positioning locking plate component, one end of the sealing ring is connected to the lower end of the status indicator ring, the other end is connected to the positioning component, the positioning component is located on the upper end of the locking plate component, the sealing gasket is located between the positioning component and the locking plate component, the lower end of the status indicator ring cooperates with the storage spring, and can move axially in the middle inner hole of the positioning component.

4. The on / off control device according to claim 1, characterized in that, The power control component includes a connecting piece, a sensitive element, a moving contact component, a position control bracket, a position control component, and a position detection piece. The moving contact component is distributed on both sides of the power control component and is used to contact the conductive component and conduct load current. The sensitive element is located in the middle of the power control component and is used to conduct load current. When the load current exceeds a certain limit, it undergoes thermal deformation. The position control bracket is distributed on both sides of the sensitive element, with one end connected to the sensitive element and the other end connected to the moving contact component. It is used to maintain the position of the moving contact component. The position detection piece is installed on the upper end of the moving contact component and is used to cooperate with the position detection component to realize the position detection of the power control component.

5. The on / off control device according to claim 4, characterized in that, It also includes an adjustment plate, which is installed at the mating position of the position control bracket and the moving contact component. The adjustment plate is used to adjust the contact pressure between the moving contact component and the conductive component, and to isolate the heat between the moving contact component and the position detection plate.

6. The on / off control device according to claim 5, characterized in that, It also includes connecting wires distributed on both sides of the sensitive element, which are used to connect the sensitive element and the moving contact component.

7. The on / off control device according to claim 6, characterized in that, It also includes a position control component, which is fixed to both sides of the lower end of the sensitive element to constrain the lateral displacement of the power control component.

8. The on / off control device according to claim 1, characterized in that, The position detection component consists of a base, a probe, and a standard component. The probe is fixed on the base, with one end extending out of the base and connected to the standard component, and the other end extending out of the base to cooperate with the position detection piece.

9. The on / off control device according to claim 8, characterized in that, The probe includes a telescopic mandrel, a metal ball, a micro-motion spring, and a conductive substrate. One end of the conductive substrate is threaded, and the other end is an internal blind hole. The telescopic mandrel, metal ball, and micro-motion spring are sequentially installed in the middle of the blind hole inside the conductive substrate, with the micro-motion spring contacting the top of the blind hole. The telescopic mandrel can move along the axis of the blind hole inside the conductive substrate under the action of external force and the micro-motion spring. During the movement of the telescopic mandrel, the metal ball rolls along the ramp at the upper end of the telescopic mandrel to ensure conductivity between the telescopic mandrel and the conductive substrate. The micro-motion spring provides the force for the telescopic mandrel to restore its position.

10. The on / off control device according to claim 9, characterized in that, The threaded end of the conductive substrate is connected to the standard part.

11. The on / off control device according to claim 1, characterized in that, The conductive components include a stationary contact, a terminal block, a self-locking sleeve, and standard parts. The stationary contact is installed on the upper end of the terminal block and is used to cooperate with the moving contact component in the power control component to achieve current conduction. The upper end of the terminal block is installed inside the support component, and the lower end of the terminal block is installed with a self-locking sleeve. The standard parts are installed on the self-locking sleeve and are used to fix the external load wires and achieve the conduction of load current with the terminal block.

12. The on / off control device according to claim 1, characterized in that, The support component includes an upper shell and a lower shell. The upper shell has a concave structure in the middle, with two symmetrical protrusions in the center. These protrusions limit the movement of the power control component within the support component and guide its vertical movement. The lower ends of the upper shell have irregularly shaped grooves on both sides, used to fix the upper end of the connector. The middle portion of the lower end of the upper shell has a square groove and a circular groove. The circular groove is used for product assembly positioning. The square groove is used to engage with the locking adjustment mechanism, limiting the movement of the motion control component within the support component and guiding its vertical movement. One side of the upper end of the upper shell has an irregularly shaped groove, used to fix the position detection component. The middle portion of the upper end of the upper shell has an irregularly shaped groove, used to engage with the locking plate component, limiting the movement of the motion control component within the support component. The upper shell has four through holes, used to engage with fastening components to fix the positions of the upper and lower shells. The upper end of the upper shell has two blind holes, used to engage with fastening components to fix the positioning element to the upper shell.

13. The on / off control device according to claim 12, characterized in that, The lower shell is symmetrical to the upper shell, and has all the same structure and functions as the upper shell. The lower shell and the upper shell are fixed together by fastening components.

14. The on / off control device according to claim 2, characterized in that, The locking adjustment mechanism includes a retaining spring, rivets, steel balls, an adjusting screw, a hook plate, a mounting base, and anti-loosening blocks. The hook plate is fixed to one end of the mounting base, the retaining spring is fixed to both ends of the middle part of the mounting base by rivets, the steel balls are installed in the through hole in the middle of the mounting base, the anti-loosening blocks are installed in the square hole at the bottom of the mounting base, and the adjusting screw passes through the bottom hole of the mounting base and through the anti-loosening blocks, with the top of the adjusting screw abutting against two steel balls. The adjusting screw can rotate forward and backward along the axis of the locking adjustment mechanism under the action of a tool. When the adjusting screw moves forward, the two steel balls abut against the retaining springs at both ends, and the retaining springs turn outward. When the adjusting screw moves backward, the two steel balls reduce the pressure on the retaining springs at both ends, and the retaining springs turn inward.

15. The on / off control device according to claim 2, characterized in that, It also includes a sealing ring, and the sealing ring and locking plate components are located in the middle of the motion control components. One end of the sealing ring is connected to the lower end of the status indicator ring, and the other end is connected to the positioning component.

16. The on / off control device according to claim 15, characterized in that, The sealing ring has a columnar structure with a through hole inside. The sealing ring has expansion and contraction characteristics, and it can move up and down along the axial direction of the positioning component under the action of the status indicator ring.

17. The on / off control device according to claim 2, characterized in that, It also includes a sealing gasket, which is located between the positioning element and the locking plate component.

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