Full-protection safety emergency stop switch and preparation method thereof

Abstract

The invention relates to the technical field of electric switches, in particular to a full-protection safety emergency stop switch and a manufacturing method thereof.The full-protection safety emergency stop switch comprises a fixed sleeve, a pressing key cap, a protection assembly, a movable assembly, a power source assembly and a rear mounting shell, and the fixed sleeve comprises an upper end connecting part, a lower end connecting part, a pressing connecting cavity and a movable connecting cavity; the pressing connecting cavity is formed in the upper end connecting part, the movable connecting cavity is formed in the lower end connecting part, the movable connecting cavity is communicated with the pressing connecting cavity, the pressing connecting cavity is located on the periphery of the movable connecting cavity, and a distance ring is arranged between the pressing connecting cavity and the movable connecting cavity for separation; the protection assembly is provided with a protection element and a reset element, one end of the protection element is arranged in the pressing connection cavity, the other end of the protection element is connected with the pressing key cap, and the reset element is used for resetting the pressing key cap. The structure is reasonable, the part standardization degree is high, the product performance is improved, meanwhile, the manufacturing cost and the failure rate are reduced, and good market competitiveness is achieved.

Description

Technical Field

[0001] This invention relates to the field of electrical switch technology, and in particular to a fully protected safety emergency stop switch and its manufacturing method. Background Technology

[0002] In industrial automation control systems, emergency stop switches are crucial components for ensuring personal and equipment safety, and their reliability and response speed are paramount. Traditional emergency stop switches often employ simple mechanical pressing structures, relying on spring reset to achieve contact switching. However, in harsh industrial environments with high vibration and dust, issues such as insufficient structural sealing, fatigue of the reset mechanism, and contact contamination frequently lead to false triggering or response failure, posing serious safety hazards. While some existing products incorporate protective covers or sealing rings to improve protection levels, their complex structures and assembly difficulties often compromise both protective performance and operational sensitivity. Furthermore, many emergency stop switches suffer from large gaps between parts and indirect force transmission paths in their internal transmission mechanisms, easily causing pressing jams and reset delays, affecting the rapid power-off effect in emergencies. During long-term, frequent use, the reset spring is prone to plastic deformation or fatigue fracture, and protective components often lose elasticity due to material aging, making it difficult to meet the requirements of high-intensity industrial applications in terms of anti-accidental triggering performance and lifespan. Therefore, there is an urgent need for a fully protected emergency stop switch with high sealing performance, vibration resistance, prevention of accidental contact, and easy maintenance, which can maintain stable and reliable operation under complex working conditions, thereby improving the overall safety level of industrial equipment. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a fully protective safety emergency stop switch and its preparation method, which features a reasonable structure, a high degree of component standardization, and improves product performance while reducing manufacturing costs and failure rates. This results in a switch with excellent economic efficiency and market competitiveness.

[0004] The technical solution adopted in this invention is: a fully protected safety emergency stop switch, comprising a fixed sleeve, a press-button cap, a protective component, a movable component, a power supply component, and a mounting back cover. The fixed sleeve includes an upper connecting part, a lower connecting part, a press-connecting cavity, and a movable connecting cavity. The press-connecting cavity is located in the upper connecting part, and the movable connecting cavity is located in the lower connecting part. The movable connecting cavity and the press-connecting cavity are interconnected. The press-connecting cavity is located on the outer periphery of the movable connecting cavity, and a spacer ring is provided between them. The protective component is provided with a protective element and a reset element. One end of the protective element is located in the press-connecting cavity, and the other end is connected to the press-button cap. The reset element is used to reset the press-button cap. The movable component is located in the movable connecting cavity, and one end is connected to the press-button cap, and the other end is connected to the mounting back cover. The power supply component is located in the mounting back cover. The movable component actuates the power supply component under the action of the press-button cap.

[0005] A further improvement to the above solution is that the outer periphery of the upper connecting part is provided with anti-slip grooves, and multiple anti-slip grooves are provided in a circumferential manner on the outer periphery of the upper connecting part; the outer periphery of the lower connecting part is provided with fixing threads, and fixing threads are connected to fixing nuts; a locking plane is provided at the connection between the upper connecting part and the lower connecting part; a locking protrusion is provided on the fixing nut facing the locking plane, and the locking protrusion is composed of multiple locking protrusions.

[0006] A further improvement to the above scheme is that the tail end of the movable connecting cavity is provided with a mating cavity, the mounting back shell is provided with a mating insertion part, the wall surface of the mating cavity is provided with a mating groove, the mating insertion part is provided with a mating buckle, the end face of the mating cavity is provided with a mating insertion groove, one end of the mating insertion groove is connected to the mating groove, and the mating buckle is guided toward the mating groove through the mating insertion groove so that the mating insertion part is fixedly mated with the mating cavity.

[0007] A further improvement to the above solution is that the keycap is provided with a fixed connecting post, the movable component includes a movable connecting element and a trigger connecting element, one end of the movable connecting element is provided with a fixed connecting groove and the other end is provided with a movable connecting slot, the groove wall of the fixed connecting groove is provided with a connecting slot, and the outer periphery of the fixed connecting post is provided with a connecting buckle, which is used to engage with the connecting slot so that the fixed connecting post is connected to the fixed connecting groove; both the connecting buckle and the connecting slot are annular, and the fixed connecting post and the fixed connecting groove are rotatably connected.

[0008] A further improvement to the above solution is that the wall surface of the movable connecting groove is provided with a movable slot and a movable directional slot, one end of the actuating connecting element is provided with a movable directional strip and a movable buckle, both the movable directional slot and the movable slot are elongated grooves, the movable directional strip is movably disposed in the movable directional slot, and the movable buckle is used to fasten onto the movable slot, so that the actuating connecting element can move axially after being connected to the movable connecting element.

[0009] A further improvement to the above solution is that a height positioning strip is provided on the outer periphery of the actuating connecting element, a height positioning groove is provided in the movable connecting cavity, and a height guide groove is provided on one side of the height positioning groove. The height guide groove is used to guide the height positioning strip toward the height positioning groove. The actuating connecting element is provided with a first slot and a second slot. A first pin is movably disposed in the first slot, and a second pin is movably disposed in the second slot. Both the first pin and the second pin are movably disposed on the actuating connecting element. The first pin is close to the movable connecting element. The movable connecting element is provided with a pushing block. The pushing block is provided with a pushing inclined surface. The end of the first pin is provided with a mating inclined surface. The pushing block pushes the mating inclined surface through the pushing inclined surface, so that the first pin moves in the first slot. A first spring is provided in the first slot for the first pin to reset.

[0010] A further improvement to the above solution is that the movable connecting cavity is provided with a limiting ring, the second slot is provided with a second spring, the second spring is used to push the second pin to move, and the limiting ring is used for the second pin to limit the axial movement of the contacting connector; the bottom of the contacting connector is provided with a limiting buckle to cooperate with the end of the movable connecting cavity for limiting.

[0011] A further improvement to the above solution is that the protective element is provided with a first abutting part, a second abutting part, and a telescopic part. The first abutting part and the second abutting part abut against the keycap and the key connecting cavity, respectively. The telescopic part is used for the first abutting part and the second abutting part to telescopically retract and reset. The reset element is provided outside the telescopic part, and positioning rings are provided at both ends for abutting the first abutting part and the second abutting part, respectively.

[0012] A further improvement to the above solution is that the power supply assembly includes a power supply housing, a first power-connecting element, a second power-connecting element, a contact conductive element, a movable slider, and a driving element. The power supply housing contains a first power-connecting platform and a second power-connecting platform, which are respectively located on opposite sides inside the power supply housing. The movable slider is positioned between the first and second power-connecting platforms. One end of the first power-connecting element is located on the first power-connecting platform, and the other end extends to the outside of the power supply housing. One end of the second power-connecting element is located on the second power-connecting platform, and the other end extends to the outside of the power supply housing. The contact conductive element is located on the movable slider. The driving element is located on one side of the housing and, under the driving action of the movable component, enables the contact conductive element to conduct electricity between the first and second power-connecting elements.

[0013] A further improvement to the above scheme is that a first groove is provided on the first power-connecting platform, a second groove is provided on the second power-connecting platform, a first contact terminal is provided on the first power-connecting element, and a second contact terminal is provided on the second power-connecting element. The first contact terminal is located above the first groove, and the second contact terminal is located above the second groove, so as to be used for contacting the fiber when the conductive element contacts and resetting when separated.

[0014] A method for assembling a fully protected safety emergency stop switch, comprising: Step S1: Place the fixed sleeve, keycap, protective assembly, movable assembly, power assembly, and mounting shell into a vibratory feeder or a feeder with vision recognition function; use an industrial camera to capture images of key components, such as the fixed connecting post of the keycap, the movable connecting groove of the movable connecting element, the movable directional strip and movable buckle of the touch connecting element, and the first and second power-connecting elements of the power assembly; use image processing algorithms to automatically identify the model, orientation, and appearance defects of the components to ensure that only qualified components are sent to the next station; Step S2: At a dedicated pre-assembly station, the robotic arm picks up the verified keycaps and, based on the coordinates provided by the vision system, precisely installs the first abutment part of the protective component onto the corresponding position of the keycap. Subsequently, the keycaps assembled with the protective component are transferred to the station for docking with the movable component. The camera performs real-time imaging of the connecting buckle on the fixed connecting post of the keycap and the connecting slot in the fixed connecting groove of the movable connecting element. Based on the image feedback, the control system guides the robotic arm to fine-tune the rotation angle of the keycap. After ensuring that the connecting buckle and the connecting slot are accurately aligned, axial pressure is applied to complete the engagement, forming a rotatable pre-assembled module. Step S3: Transfer the pre-assembled module to the active component assembly station; the robot arm picks up the touch-connecting element, and through visual guidance, aligns its movable guide bar with the movable guide groove of the active connecting element, and inserts it axially so that the movable buckle is finally engaged on the movable slot, completing the sliding connection between the active component and the touch-connecting element; during this process, the force control sensor monitors the insertion force to ensure a smooth assembly process without overstress damage; Step S4: Grab the assembled upper module as a whole and insert it into the movable connecting cavity of the fixed sleeve; align the vision system-assisted height positioning strip with the height positioning groove to ensure proper installation; then, align the power supply assembly and the installed back shell assembly through the mating cavity of the mating insertion part and the tail of the fixed sleeve, guide the mating buckle to slide into the mating slot along the mating insertion groove to complete the snap-fit ​​fixation; after the final assembly is completed, enter the automatic testing station: drive the testing mechanism to simulate the pressing action, apply a preset stroke force to the keycap, and at the same time monitor the resistance or on / off signal changes between the first and second power connection elements of the power supply assembly in real time to verify whether the emergency stop switch triggering function is normal and reliable; Step S5: The assembly results, visual inspection images, force control data and functional test results of each step are recorded in real time and bound to the unique identification code of the emergency stop switch, and stored in the database; if an abnormality or test failure is detected at any stage, the system will immediately alarm and automatically divert the product to the rework line.

[0015] A further improvement to the above scheme is that, in step S2, a pre-testing step for the performance of the protective component is added: the pre-assembled keycap and the protective component module are placed on a dedicated test fixture; the test fixture applies a multi-cycle pressing load to the keycap simulating the normal operating range, and at the same time, the displacement sensor accurately measures the compression amount of the extension part of the protective element and the rebound amount after reset during each press. Analyze the repeatability error of compression and whether the rebound is sufficient and timely, and determine whether the fatigue performance of the reset element and the elastic recovery capability of the protective element meet the preset standards.

[0016] A further improvement to the above scheme is that step S3 includes an intelligent verification sub-step for the working status of the first and second pins: after the active connecting element is inserted into the trigger connecting element, the initial positions of the first and second pins are imaged and confirmed using a miniature endoscope camera or through a preset observation window; subsequently, a miniature actuator is controlled to simulate the pushing and pressing action of the active connecting element, slightly pushing the first pin, and the image analysis is used to determine whether the first pin can overcome the force of the first spring under the action of the pushing inclined surface and successfully retract into the first slot, and whether it can be reset under the action of the first spring after the actuator is withdrawn; at the same time, it is monitored whether the second pin can pop out normally under the action of the second spring and be limited by the limiting ring of the active connecting cavity.

[0017] The beneficial effects of this invention are: Compared to existing emergency stop switches, this invention achieves high reliability, long lifespan, and excellent anti-accidental touch performance through multi-layer protection and modular structural design. By setting independent yet interconnected pressing and moving connecting cavities, combined with a surrounding protective component, a dual protection mechanism of physical isolation and reset is formed. The protective and reset components work together to ensure rapid reset when the button is not intentionally pressed, effectively preventing misoperation due to accidental contact or vibration, making it particularly suitable for complex environments such as industrial sites. The moving component is integrated within the moving connecting cavity, forming a linear transmission path with the pressing keycap and power supply component, ensuring direct force transmission and rapid response, avoiding the jamming or delay problems caused by loose structures in traditional emergency stop switches. The spacer ring further improves the structural stability between the cavities, ensuring a smooth pressing process and accurate return. The fixed sleeve adopts a segmented design with upper and lower connecting parts, facilitating the separate installation and debugging of the protective and moving components. The power supply component is independently located within the rear housing, which facilitates the isolation and protection of the circuitry and subsequent maintenance and replacement, improving the product's maintainability and lifespan. Suitable for industrial environments with high vibration and dust, the protective components effectively prevent external contaminants from entering the moving chamber, keeping the internal contacts clean. In emergencies, users can quickly and decisively press down the keycap to trigger power cutoff via the moving component, offering sensitive response and significantly superior safety performance compared to ordinary push-button switches. This invention features a rational structure and highly standardized parts, improving product performance while reducing manufacturing costs and failure rates, resulting in excellent economic efficiency and market competitiveness.

[0018] This assembly method for fully protected emergency stop switches achieves high-precision, high-efficiency, and high-consistency intelligent assembly by integrating machine vision, force control sensing, and automated execution systems. Visual recognition and image processing technologies are used to automatically detect the model, orientation, and appearance defects of key components, preventing defective products from entering the production line at the source. During pre-assembly and final assembly, real-time image feedback guides the robotic arm to fine-tune alignment, ensuring that precision structures such as connecting clips and slots, and directional strips and grooves are assembled in one go. This effectively avoids misalignment, tilting, or jamming problems that are prone to occur during manual operation, significantly improving the assembly accuracy and functional reliability of the product. Based on the collaborative operation of robots, visual positioning, and force control sensing, the entire process from material feeding, alignment, pressing to testing is automated, significantly reducing reliance on manual labor. The system has strong parametric adjustment capabilities, allowing for rapid adaptation to the assembly requirements of different emergency stop switch models by modifying visual templates or control programs, enhancing the production line's flexible production capacity to handle multi-variety, small-batch orders. Force control sensors are introduced at key workstations to monitor insertion or pressing forces in real time during assembly, preventing overstress damage to precision components and ensuring product structural integrity. Each assembly result, inspection data, and test signal is automatically recorded and bound to a unique identification code, forming a complete digital quality archive. This enables full lifecycle quality traceability and provides data support for process optimization and problem analysis. Automated assembly line operations effectively shorten the assembly cycle of individual products, reduce waiting time between processes, and improve overall production efficiency. Standardized and procedural assembly processes eliminate quality fluctuations caused by differences in operator skill levels, ensuring that every emergency stop switch meets uniform performance standards and guarantees high consistency between product batches. Automated assembly reduces reliance on skilled workers, lowering labor and management costs; early defect identification and process error prevention mechanisms effectively reduce rework and scrap rates, saving material waste. Stable assembly quality fundamentally reduces the risk of product failure during use, improving the long-term reliability of emergency stop switches in critical safety applications. This invention, while ensuring high performance and high reliability of emergency stop switches, achieves the goals of intelligent, digital, and flexible modern manufacturing, possessing strong industrial application value and promising prospects for promotion. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the fully protective safety emergency stop switch of the present invention; Figure 2 for Figure 1 Explosion diagram of the fully protective emergency stop switch; Figure 3 for Figure 1 A top-view schematic diagram of the fully protective emergency stop switch; Figure 4 for Figure 3Sectional view of AA; Figure 5 for Figure 1 A schematic diagram of the fixed sleeve and moving components of the fully protective emergency stop switch; Figure 6 for Figure 1 An exploded view of the fixed sleeve and moving components of the fully protective emergency stop switch; Figure 7 for Figure 1 A schematic diagram of the power supply components of the fully protected safety emergency stop switch; Figure 8 This is a flowchart illustrating the assembly method of the fully protected safety emergency stop switch of the present invention.

[0020] Explanation of reference numerals in the attached drawings: Fixed sleeve 1, Upper connecting part 11, Anti-slip groove 111, Lower connecting part 12, Fixed thread 121, Fixed nut 122, Locking protrusion 123, Pressing connecting cavity 13, Movable connecting cavity 14, Mating cavity 141, Height positioning groove 142, Mating slot 143, Limiting ring 144, Spacer ring 15, Pressing keycap 2, Fixed connecting post 21, Connecting buckle 211, Protective assembly 3, Protective element 31, First abutment part 311, Second abutment part 312, Telescopic part 313, Reset element 32, Movable assembly 4, Movable connecting element 41, Fixed connecting groove 411, Movable connecting groove 412, Movable slot 4121, Movable directional groove 4122. Connecting slot 413, pushing block 414, pushing inclined surface 415, actuating connecting element 42, movable directional bar 421, movable buckle 422, height positioning bar 423, first slot 424, second slot 425, first pin 426, second pin 427, limit buckle 428, power supply assembly 5, power supply housing 51, first power receiving platform 511, first groove 5111, second power receiving platform 512, second groove 5121, first power receiving element 52, first contact terminal 521, second power receiving element 53, second contact terminal 531, contact conductive element 54, movable slider 55, driving element 56, mounting back cover 6, mating insertion part 61, mating buckle 611. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-8As shown, in one embodiment of the present invention, a fully protected safety emergency stop switch is provided, including a fixed sleeve 1, a press-button cap 2, a protective component 3, a movable component 4, a power supply component 5, and a mounting back cover 6. The fixed sleeve 1 includes an upper connecting portion 11, a lower connecting portion 12, a press-connecting cavity 13, and a movable connecting cavity 14. The press-connecting cavity 13 is disposed in the upper connecting portion 11, and the movable connecting cavity 14 is disposed in the lower connecting portion 12. The movable connecting cavity 14 and the press-connecting cavity 13 are interconnected. The press-connecting cavity 13 is located in the movable connecting portion 12. The outer periphery of the connecting cavity 14 is separated from the keycap 2 by a partition ring 15. The protective component 3 is provided with a protective element 31 and a reset element 32. One end of the protective element 31 is located in the pressing connecting cavity 13, and the other end is connected to the pressing keycap 2. The reset element 32 is used to reset the pressing keycap 2. The movable component 4 is located in the movable connecting cavity 14, and one end is connected to the pressing keycap 2, and the other end is connected to the mounting back cover 6. The power component 5 is located in the mounting back cover 6. The movable component 4 is activated by the pressing keycap 2. This invention achieves high reliability, long life and excellent anti-accidental touch performance through multi-layer protection and modular structure design. By setting independent and connected pressing connecting cavities 13 and movable connecting cavities 14, and cooperating with the surrounding protective component 3, a dual protection mechanism of physical isolation and reset is formed. The protective element 31 and the reset element 32 work together to ensure that the key can be quickly reset when it is not intentionally pressed, effectively preventing misoperation caused by accidental touch or vibration, and is particularly suitable for complex environments such as industrial sites. The active component 4 is integrated within the active connecting cavity 14, forming a linear transmission path with the keycap 2 and the power component 5. This ensures direct force transmission and rapid response, avoiding the jamming or delay issues caused by loose structures in traditional emergency stop switches. The spacer ring 15 further enhances the structural stability between the cavities, ensuring a smooth pressing process and accurate return. The fixed sleeve 1 features a segmented design with upper and lower connecting parts 12, facilitating the separate installation and debugging of the protective component 3 and the active component 4. The power component 5 is independently housed within the rear shell, facilitating circuit isolation and protection, as well as future maintenance and replacement, thus improving product maintainability and lifespan. Suitable for high-vibration, dusty industrial environments, the protective element 31 effectively prevents external contaminants from entering the active cavity, keeping internal contacts clean. In emergencies, users can quickly and clearly press down the keycap, triggering power cut-off via the active component 4. The response is sensitive, and the safety performance is significantly superior to ordinary push-button switches. This invention features a reasonable structure and a high degree of component standardization, improving product performance while reducing manufacturing costs and failure rates, resulting in excellent economic efficiency and market competitiveness.

[0024] The upper connecting part 11 has anti-slip grooves 111 on its outer periphery, and multiple anti-slip grooves 111 are arranged circumferentially on the outer periphery of the upper connecting part 11. The lower connecting part 12 has a fixing thread 121 on its outer periphery, and a fixing nut 122 is connected to the fixing thread 121. A locking plane is provided at the connection between the upper connecting part 11 and the lower connecting part 12. The fixing nut 122 has a locking protrusion 123 facing the locking plane, and the locking protrusion 123 is composed of multiple locking protrusions. In this embodiment, by providing multiple anti-slip grooves 111 circumferentially on the outer periphery of the upper connecting part 11, the friction of the operator's hand part is effectively increased during installation or debugging, preventing slippage during tightening or adjustment, and improving the convenience and safety of operation. Meanwhile, the lower connecting part 12 is provided with a fixing thread 121 and a fixing nut 122 with a locking protrusion 123. The locking protrusion 123 contacts the locking plane at the end of the upper connecting part 11. When the fixing nut 122 is tightened, multiple locking protrusions generate a uniformly distributed locking force, which enhances the stability of the switch on the mounting panel, effectively avoids loosening caused by equipment vibration, and improves the reliability and service life of the overall structure.

[0025] The movable connecting cavity 14 has a mating cavity 141 at its tail end, and the mounting rear shell 6 has a mating insertion part 61. The wall surface of the mating cavity 141 has a mating groove 143, and the mating insertion part 61 has a mating buckle 611. The end face of the mating cavity 141 has a mating insertion groove 143, one end of which connects to the mating groove 143. The mating buckle 611 is guided towards the mating groove 143 through the mating insertion groove 143, so that the mating insertion part 61 is fixedly engaged with the mating cavity 141. In this embodiment, by providing a mating cavity 141 and a mating insertion groove 143 at the tail end of the movable connecting cavity 14, and by providing a mating insertion part 61 with a mating buckle 611 on the mounting rear shell 6, rapid, accurate positioning and reliable connection between the mounting rear shell 6 and the fixed sleeve 1 are achieved. During assembly, the mating buckle 611 is smoothly guided along the mating insertion groove 143 and finally snaps into the mating groove 143, forming a stable lock. This structure not only simplifies the assembly process and improves production efficiency, but also effectively enhances the tensile and torsional strength of the connection parts through the interlocking mechanism, preventing the equipment from loosening under vibration and ensuring the overall stability and long-term safety of the emergency stop switch.

[0026] The keycap 2 is provided with a fixed connecting post 21. The movable component 4 includes a movable connecting element 41 and an actuating connecting element 42. One end of the movable connecting element 41 is provided with a fixed connecting groove 411 and the other end is provided with a movable connecting slot 412. The groove wall of the fixed connecting groove 411 is provided with a connecting slot 413. The outer periphery of the fixed connecting post 21 is provided with a connecting buckle 211. The connecting buckle 211 is used to engage with the connecting slot 413 so that the fixed connecting post 21 is connected to the fixed connecting groove 411. Both the connecting buckle 211 and the connecting slot 413 are annularly arranged, and the fixed connecting post 21 and the fixed connecting groove 411 are rotatably connected. In this embodiment, by designing the fixed connecting post 21 of the keycap 2 and the fixed connecting groove 411 of the movable connecting element 41 as a rotatable connection structure of annular buckle and slot, the stable and smooth rotation of the keycap 2 relative to the movable component 4 is achieved. This structure not only ensures the flexibility and accuracy of the pressing action, preventing trigger failure due to misalignment or jamming, but also increases the contact area through the ring-shaped fit, improving the mechanical strength and durability of the connection parts. Simultaneously, the rotating connection design allows the emergency stop switch to maintain structural stability even during frequent pressing, effectively extending the product's lifespan and improving operational reliability in emergency situations.

[0027] The movable connecting groove 412 has a movable slot 4121 and a movable directional groove 4122 on its groove wall. One end of the actuating connecting element 42 has a movable directional strip 421 and a movable buckle 422. Both the movable directional groove 4122 and the movable slot 4121 are elongated grooves. The movable directional strip 421 is movably disposed in the movable directional groove 4122, and the movable buckle 422 is used to engage with the movable slot 4121, allowing the actuating connecting element 42 to move axially after connecting with the movable connecting element 41. In this embodiment, by providing elongated movable slots 4121 and directional grooves 4122 on the groove wall of the movable connecting groove 412, and correspondingly providing a movable directional strip 421 and a movable buckle 422 on the actuating connecting element 42, an axially movable connection between the two components is achieved. This structure allows the actuating connecting element 42 to move smoothly axially under the guidance of the movable connecting element 41, effectively avoiding swaying or jamming, and ensuring the accuracy and response speed of the emergency stop trigger action. Meanwhile, the snap-fit ​​design of the movable buckle 422 and the movable slot 4121 enhances the reliability of the connection, and can maintain a stable fit even in a vibration environment, improving the durability and operational safety of the overall switch structure, making it suitable for reliable use in high-frequency or emergency conditions.

[0028] A height positioning strip 423 is provided on the outer periphery of the actuating connecting element 42. A height positioning groove 142 is provided in the movable connecting cavity 14. A height guide groove 142 is provided on one side of the height positioning groove 142, and the height guide groove 142 is used to guide the height positioning strip 423 toward the height positioning groove 142. The actuating connecting element 42 is provided with a first slot 424 and a second slot 425. A first pin 426 is movably disposed in the first slot 424, and a second pin 427 is movably disposed in the second slot 425. Both the first pin 426 and the second pin 427 are movably disposed on the actuating connecting element 42. The first pin 426 is close to the movable connecting element 41. The movable connecting element 41 is provided with a pushing block 4. 14. The pushing block 414 is provided with a pushing inclined surface 415, and the end of the first pin 426 is provided with a mating inclined surface. The pushing block 414 pushes the mating inclined surface through the pushing inclined surface 415, causing the first pin 426 to move within the first slot 424. A first spring is provided within the first slot 424 for resetting the first pin 426. Specifically, the movable connecting cavity 14 is provided with a limiting ring 144, and a second spring is provided within the second slot 425. The second spring is used to push the second pin 427 to move, and the limiting ring 144 is used for the second pin 427 to axially limit the contact element. The bottom of the contact element 42 is provided with a limiting buckle 428 for mating with the end of the movable connecting cavity 14 to limit it. In this embodiment, the precise positioning and axial guidance of the contact element 42 within the movable connecting cavity 14 are achieved through the mating structure of the height positioning strip 423 and the height positioning groove 142, effectively preventing component displacement. The inclined surface design of the push block 414 and the first pin 426, combined with the reset action of the first spring, allows the first pin 426 to extend and retract stably, ensuring the sensitivity and consistency of the emergency stop triggering action. The interaction between the second pin 427 and the limit ring 144, along with the continuous pressure provided by the second spring, achieves reliable axial limiting of the actuating connecting element 42, preventing malfunctions or reset failures. The bottom limit buckle 428 further enhances the axial stability of the overall structure, enabling the switch to maintain high reliability even under frequent operation or vibration environments, improving emergency stop response speed and equipment safety.

[0029] The protective element 31 is provided with a first abutting part 311, a second abutting part 312, and a telescopic part 313. The first abutting part 311 and the second abutting part 312 abut against the keycap 2 and the pressing connection cavity 13, respectively. The telescopic part 313 is used for the telescopic reset of the first abutting part 311 and the second abutting part 312. The reset element 32 is disposed outside the telescopic part 313, and has positioning rings at both ends for abutting against the first abutting part 311 and the second abutting part 312, respectively. In this embodiment, by providing a protective element 31 with a first abutting part 311, a second abutting part 312, and a telescopic part 313, and by configuring a reset element 32 with positioning rings at both ends outside the telescopic part 313, the elastic isolation and automatic reset function between the keycap 2 and the pressing connection cavity 13 are realized. It can effectively absorb the impact force of operation, avoid component wear caused by rigid contact, and the telescopic design of the protective element 31 can quickly return to the initial state after emergency stop triggering, ensuring the reliability of repeated use of the switch. The positioning ring of the reset element 32 further enhances the stability of the contact area, preventing the protective element 31 from shifting or falling off, thereby maintaining long-term sealing and protective performance in harsh industrial environments and significantly improving the durability and operational safety of the switch.

[0030] The power supply assembly 5 includes a power supply housing 51, a first power-connecting element 52, a second power-connecting element 53, a contact conductive element 54, a movable slider 55, and a driving element 56. The power supply housing 51 is provided with a first power-connecting platform 511 and a second power-connecting platform 512, which are respectively disposed on both sides inside the power supply housing 51. The movable slider 55 is disposed between the first power-connecting platform 511 and the second power-connecting platform 512. One end of the first power-connecting element 52 is disposed on the first power-connecting platform 511, and the other end extends to the outside of the power supply housing 51. One end of the second power-connecting element 53 is disposed on the second power-connecting platform 512, and the other end extends to the outside of the power supply housing 51. The contact conductive element 54 is disposed on the movable slider 55. The driving element 56 is disposed on one side of the housing and, under the driving action of the movable assembly 56, causes the contact conductive element 54 to conduct electricity between the first power-connecting element 52 and the second power-connecting element 53. In this embodiment, the power supply component 5 adopts a split-type power connection platform structure. A sliding movable slider 55 is provided between the first power connection platform 511 and the second power connection platform 512, and a contact conductive element 54 is integrated on the slider to achieve circuit switching control. When the movable component 4 is driven by the driving element 56, the contact conductive element 54 reliably connects the power connection elements on both sides, forming a stable conductive path. This effectively shortens the current path, reduces contact resistance, and improves the reliability and response speed of the electrical connection. Simultaneously, both the power connection element and the conductive element are built into the power supply housing 51, effectively isolating external dust, moisture, and other interference, enhancing the insulation performance and operational safety of the switch in harsh industrial environments. The overall structure is compact, easy to assemble and maintain, and meets the high reliability requirements of emergency stop switches.

[0031] A first groove 5111 is provided on the first power receiving platform 511, and a second groove 5121 is provided on the second power receiving platform 512. A first contact terminal 521 is provided on the first power receiving element 52, and a second contact terminal 531 is provided on the second power receiving element 53. The first contact terminal 521 is positioned above the first groove 5111, and the second contact terminal 531 is positioned above the second groove 5121, for use when the conductive element 54 contacts the fiber, and when separated, it resets. In this embodiment, by providing a first groove 5111 on the first power receiving platform 511 and a second groove 5121 on the second power receiving platform 512, and correspondingly configuring the first contact terminal 521 and the second contact terminal 531, the accuracy and stability of circuit contact are effectively improved. When the conductive element 54 is activated, it can accurately embed into the groove and contact the terminal, achieving reliable conduction; when separated, it naturally resets with the help of the groove structure, avoiding accidental contact or adhesion. This reduces contact resistance, enhances current transmission efficiency, and also reduces terminal wear and extends the component's service life through the guiding and limiting effect of the groove. The overall structure is simple and reliable, and the response is sensitive, making it especially suitable for industrial safety emergency stop scenarios that require frequent triggering and high reliability assurance.

[0032] like Figures 1-8 As shown, an assembly method for a fully protected safety emergency stop switch is provided, which includes: Step S1: Place the fixed sleeve 1, keycap 2, protective assembly 3, movable assembly 4, power assembly 5, and mounting shell 6 into a vibratory feeder or a feeder with vision recognition function; use an industrial camera to capture images of key components, such as the fixed connecting post 21 of the keycap 2, the movable connecting groove 412 of the movable connecting element 41, the movable directional strip 421 and movable buckle 422 of the touch connecting element 42, and the first power connection element 52 and the second power connection element 53 of the power assembly 5; use image processing algorithms to automatically identify the model, orientation, and appearance defects of the components to ensure that only qualified components are sent to the next station; Step S2: At the dedicated pre-assembly station, the robotic arm picks up the verified keycap 2 and, based on the coordinates provided by the vision system, precisely installs the first abutment part 311 of the protective component 3 onto the corresponding position of the keycap 2. Subsequently, the keycap 2 with the protective component 3 assembled is transferred to the station where it docks with the movable component 4. The camera performs real-time imaging of the connecting buckle 211 on the fixed connecting post 21 of the keycap 2 and the connecting slot 413 in the fixed connecting groove 411 of the movable connecting element 41. Based on the image feedback, the control system guides the robotic arm to fine-tune the rotation angle of the keycap 2. After ensuring that the connecting buckle 211 and the connecting slot 413 are accurately aligned, axial pressure is applied to complete the engagement, forming a rotatable pre-assembly module. Step S3: The pre-assembled module is transferred to the assembly station of the movable component 4; the robot arm grasps the touch-connecting element 42, and through visual guidance, aligns its movable guide bar 421 with the movable guide groove 4122 of the movable connecting element 41, and inserts it axially so that the movable buckle 422 is finally engaged on the movable slot 4121, completing the sliding connection between the movable component 4 and the touch-connecting element 42; during this process, the force control sensor monitors the insertion force to ensure a smooth assembly process without overstress damage; Step S4: Grab the assembled upper module as a whole and insert it into the movable connecting cavity 14 of the fixed sleeve 1; align the vision system-assisted height positioning strip 423 with the height positioning groove 142 to ensure proper installation; then, align the power assembly 5 and the installed back shell 6 assembly with the mating cavity 141 at the tail of the fixed sleeve 1 through the mating insertion part 61, guide the mating buckle 611 to slide into the mating slot 143 along the mating insertion groove 143 to complete the snap-fit ​​fixation; after the final assembly is completed, enter the automatic testing station: drive the testing mechanism to simulate the pressing action, apply a preset stroke force to the keycap 2, and at the same time monitor the resistance or on / off signal changes between the first power connection element 52 and the second power connection element 53 of the power assembly 5 in real time to verify whether the emergency stop switch triggering function is normal and reliable; Step S5: The assembly results, visual inspection images, force control data and functional test results of each step are recorded in real time and bound to the unique identification code of the emergency stop switch, and stored in the database; if an abnormality or test failure is detected at any stage, the system will immediately alarm and automatically divert the product to the rework line.

[0033] In this embodiment, intelligent assembly with high precision, high efficiency, and high consistency is achieved by integrating machine vision, force control sensing, and automated execution systems. Visual recognition and image processing technologies are used to automatically detect the model, orientation, and appearance defects of key components, preventing defective products from entering the production line at the source. During pre-assembly and final assembly, real-time image feedback guides the robotic arm to fine-tune alignment, ensuring that precision structures such as connecting clips 211 and slots, and directional strips and grooves are assembled in one go. This effectively avoids misalignment, tilting, or jamming problems that are prone to occur during manual operation, significantly improving the assembly accuracy and functional reliability of the product. Based on the collaborative operation of robots, visual positioning, and force control sensing, the entire process from material feeding, alignment, pressing to testing is automated, significantly reducing reliance on manual labor. The system has strong parametric adjustment capabilities, allowing for rapid adaptation to the assembly requirements of different models of emergency stop switches by modifying the visual template or control program, enhancing the production line's flexible production capacity to handle multi-variety, small-batch orders. Force control sensors are introduced at key workstations to monitor insertion or pressing forces in real time during assembly, preventing overstress damage to precision components and ensuring product structural integrity. Each assembly result, inspection data, and test signal is automatically recorded and bound to a unique identification code, forming a complete digital quality archive. This enables full lifecycle quality traceability and provides data support for process optimization and problem analysis. Automated assembly line operations effectively shorten the assembly cycle of individual products, reduce waiting time between processes, and improve overall production efficiency. Standardized and procedural assembly processes eliminate quality fluctuations caused by differences in operator skill levels, ensuring that every emergency stop switch meets uniform performance standards and guarantees high consistency between product batches. Automated assembly reduces reliance on skilled workers, lowering labor and management costs; early defect identification and process error prevention mechanisms effectively reduce rework and scrap rates, saving material waste. Stable assembly quality fundamentally reduces the risk of product failure during use, improving the long-term reliability of emergency stop switches in critical safety applications. This invention, while ensuring high performance and high reliability of emergency stop switches, achieves the goals of intelligent, digital, and flexible modern manufacturing, possessing strong industrial application value and promising prospects for promotion.

[0034] In step S2, a pre-testing step for the performance of the protective component 3 is added: the pre-assembled keycap 2 and the protective component 3 module are placed on a dedicated test fixture; the test fixture applies a multi-cycle pressing load to the keycap 2 to simulate the normal operating range, and at the same time, the compression amount of the extension part 313 of the protective component 31 and the rebound amount after reset are accurately measured by the displacement sensor during each press. Analyze the repeatability error of the compression amount and whether the rebound is sufficient and timely, and determine whether the fatigue performance of the reset element 32 and the elastic recovery capability of the protective element 31 meet the preset standards.

[0035] In this embodiment, a pre-testing step for the performance of the protective component 3 is added to achieve pre-quality control of the critical protective structure of the emergency stop switch. This step involves performing multi-cycle load tests under simulated working conditions on the pre-assembled keycap 2 and the protective component 3 module before final assembly. Combined with precise monitoring of the compression and rebound behavior of the telescopic part 313 using a displacement sensor, it can effectively identify whether the reset element 32 exhibits early fatigue or elastic decay. This method not only eliminates the risk of reset failure due to material defects or improper assembly in advance but also significantly improves the overall reliability and service life of the switch. By quantitatively evaluating whether the elastic recovery capability of the protective component 31 meets preset standards, it ensures that every emergency stop switch leaving the factory can respond quickly and stably in emergency situations, greatly enhancing the safety protection level of the equipment in industrial applications.

[0036] Step S3 includes an intelligent verification sub-step for the working status of the first pin 426 and the second pin 427: After the active connecting element 41 is inserted into the contact element 42, the initial positions of the first pin 426 and the second pin 427 are imaged and confirmed using a miniature endoscope camera or through a preset observation window; then, a miniature actuator is controlled to simulate the action of the push block 414 of the active connecting element 41, slightly pushing the first pin 426, and the image analysis is used to determine whether the first pin 426 can overcome the force of the first spring and retract smoothly into the first slot 424 under the action of the push inclined surface 415, and whether it can be reset under the action of the first spring after the actuator is withdrawn; at the same time, it is monitored whether the second pin 427 can pop out normally under the action of the second spring and be limited by the limiting ring 144 of the active connecting cavity 14.

[0037] In this embodiment, by introducing an intelligent verification sub-step, precise functional verification of the linkage mechanism between the first pin 426 and the second pin 427 is achieved. By using a miniature endoscope camera or observation window to image and confirm the initial position of the pins, and combining this with a miniature actuator to simulate pushing motion, the coordinated performance of the pushing ramp 415 and the spring reset mechanism can be effectively detected. Potential assembly defects such as pin jamming, delayed reset, or spring failure can be identified in advance, ensuring that the pins retract smoothly under force and quickly reset after force is released. Simultaneously, the reliability of the pop-out and limit functions of the second pin 427 is verified. This verification process significantly improves the accuracy and stability of the switch's mechanical interlocking structure, eliminating safety hazards caused by pin mechanism failure from the assembly source, and enhancing the response reliability of the emergency stop switch under emergency conditions.

[0038] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A fully protected safety emergency stop switch, characterized in that: The device includes a fixed sleeve, a keycap, a protective component, a movable component, a power supply component, and a mounting back cover. The fixed sleeve includes an upper connecting portion, a lower connecting portion, a pressing connecting cavity, and a movable connecting cavity. The pressing connecting cavity is located in the upper connecting portion, and the movable connecting cavity is located in the lower connecting portion. The movable connecting cavity and the pressing connecting cavity are interconnected. The pressing connecting cavity is located on the outer periphery of the movable connecting cavity, and a spacer ring is provided between them. The protective component includes a protective element and a reset element. One end of the protective element is located in the pressing connecting cavity, and the other end is connected to the keycap. The reset element is used to reset the keycap. The movable component is located in the movable connecting cavity, and one end is connected to the keycap, and the other end is connected to the mounting back cover. The power supply component is located in the mounting back cover. The movable component actuates the power supply component when the keycap is pressed.

2. The fully protected safety emergency stop switch according to claim 1, characterized in that: The outer periphery of the upper connecting part is provided with anti-slip grooves, and there are multiple anti-slip grooves arranged in a circumferential manner on the outer periphery of the upper connecting part; the outer periphery of the lower connecting part is provided with fixing threads, and fixing threads are connected to fixing nuts; a locking plane is provided at the connection between the upper connecting part and the lower connecting part; a locking protrusion is provided on the fixing nut facing the locking plane, and the locking protrusion is composed of multiple locking protrusions.

3. The fully protected safety emergency stop switch according to claim 1, characterized in that: The movable connecting cavity has a mating cavity at its tail end, the mounting back cover has a mating insertion part, the wall of the mating cavity has a mating slot, the mating insertion part has a mating buckle, the end face of the mating cavity has a mating insertion groove, one end of the mating insertion groove is connected to the mating slot, and the mating buckle is guided toward the mating slot through the mating insertion groove so that the mating insertion part is fixedly mated with the mating cavity.

4. The fully protected safety emergency stop switch according to claim 1, characterized in that: The keycap is provided with a fixed connecting post. The movable component includes a movable connecting element and an actuating connecting element. One end of the movable connecting element is provided with a fixed connecting groove and the other end is provided with a movable connecting slot. The groove wall of the fixed connecting groove is provided with a connecting slot. The outer periphery of the fixed connecting post is provided with a connecting buckle. The connecting buckle is used to engage with the connecting slot so that the fixed connecting post is connected to the fixed connecting groove. Both the connecting buckle and the connecting slot are annular. The fixed connecting post and the fixed connecting groove are rotatably connected.

5. The fully protected safety emergency stop switch according to claim 4, characterized in that: The movable connecting groove has a movable slot and a movable directional slot on its groove wall. One end of the actuating connecting element has a movable directional strip and a movable buckle. Both the movable directional groove and the movable slot are elongated grooves. The movable directional strip is movably disposed in the movable directional groove. The movable buckle is used to fasten onto the movable slot so that the actuating connecting element can move axially after being connected to the movable connecting element.

6. The fully protected safety emergency stop switch according to claim 5, characterized in that: The outer periphery of the actuating connecting element is provided with a height positioning strip, and the movable connecting cavity is provided with a height positioning groove. A height guide groove is provided on one side of the height positioning groove, and the height guide groove is used to guide the height positioning strip toward the height positioning groove. The actuating connecting element is provided with a first slot and a second slot. A first pin is movably disposed in the first slot, and a second pin is movably disposed in the second slot. Both the first pin and the second pin are movably disposed on the actuating connecting element. The first pin is close to the movable connecting element. The movable connecting element is provided with a pushing block. The pushing block is provided with a pushing slope. The end of the first pin is provided with a mating slope. The pushing block pushes the mating slope through the pushing slope, so that the first pin moves in the first slot. A first spring is provided in the first slot for the first pin to reset. The movable connecting cavity is provided with a limiting ring, and the second slot is provided with a second spring. The second spring is used to push the second pin to move. The limiting ring is used for the second pin to limit the axial movement of the actuating connector. The bottom of the actuating connecting element is provided with a limiting buckle to cooperate with the end of the movable connecting cavity for limiting.

7. The fully protected safety emergency stop switch according to claim 1, characterized in that: The protective element is provided with a first abutting part, a second abutting part, and a telescopic part. The first abutting part and the second abutting part abut against the keycap and the key connecting cavity, respectively. The telescopic part is used for the first abutting part and the second abutting part to telescopically retract and reset. The reset element is provided outside the telescopic part, and positioning rings are provided at both ends for abutting the first abutting part and the second abutting part, respectively.

8. The fully protected safety emergency stop switch according to claim 1, characterized in that: The power supply assembly includes a power supply housing, a first power-connecting element, a second power-connecting element, a contact conductive element, a movable slider, and a driving element. The power supply housing contains a first power-connecting platform and a second power-connecting platform, which are respectively located on opposite sides inside the power supply housing. The movable slider is positioned between the first and second power-connecting platforms. One end of the first power-connecting element is located on the first power-connecting platform, and the other end extends to the outside of the power supply housing. One end of the second power-connecting element is located on the second power-connecting platform, and the other end extends to the outside of the power supply housing. The contact conductive element is located on the movable slider. The driving element is located on one side of the housing and, under the driving action of the movable component, enables the contact conductive element to conduct electricity between the first and second power-connecting elements.

9. The fully protected safety emergency stop switch according to claim 8, characterized in that: The first power-connecting platform is provided with a first groove, and the second power-connecting platform is provided with a second groove. The first power-connecting element is provided with a first contact terminal, and the second power-connecting element is provided with a second contact terminal. The first contact terminal is located above the first groove, and the second contact terminal is located above the second groove, so as to contact the fiber when the conductive element contacts and reset when separated.

10. A method for assembling a fully protected safety emergency stop switch, characterized in that: Assembly for implementing the fully protected safety emergency stop switch according to any one of claims 1 to 9 includes: Step S1: Place the fixed sleeve, keycap, protective assembly, movable assembly, power assembly, and mounting shell into a vibratory feeder or a feeder with vision recognition function; use an industrial camera to capture images of key components, such as the fixed connecting post of the keycap, the movable connecting groove of the movable connecting element, the movable directional strip and movable buckle of the touch connecting element, and the first and second power-connecting elements of the power assembly; use image processing algorithms to automatically identify the model, orientation, and appearance defects of the components to ensure that only qualified components are sent to the next station; Step S2: At a dedicated pre-assembly station, the robotic arm picks up the verified keycaps and, based on the coordinates provided by the vision system, precisely installs the first abutment part of the protective component onto the corresponding position of the keycap. Subsequently, the keycaps assembled with the protective component are transferred to the station for docking with the movable component. The camera performs real-time imaging of the connecting buckle on the fixed connecting post of the keycap and the connecting slot in the fixed connecting groove of the movable connecting element. Based on the image feedback, the control system guides the robotic arm to fine-tune the rotation angle of the keycap. After ensuring that the connecting buckle and the connecting slot are accurately aligned, axial pressure is applied to complete the engagement, forming a rotatable pre-assembled module. Step S3: Transfer the pre-assembled module to the active component assembly station; the robot arm picks up the touch-connecting element, and through visual guidance, aligns its movable guide bar with the movable guide groove of the active connecting element, and inserts it axially so that the movable buckle is finally engaged on the movable slot, completing the sliding connection between the active component and the touch-connecting element; during this process, the force control sensor monitors the insertion force to ensure a smooth assembly process without overstress damage; Step S4: Grab the assembled upper module as a whole and insert it into the movable connecting cavity of the fixed sleeve; align the vision system-assisted height positioning strip with the height positioning groove to ensure proper installation; then, align the power supply assembly and the installed back shell assembly through the mating cavity of the mating insertion part and the tail of the fixed sleeve, guide the mating buckle to slide into the mating slot along the mating insertion groove to complete the snap-fit ​​fixation; after the final assembly is completed, enter the automatic testing station: drive the testing mechanism to simulate the pressing action, apply a preset stroke force to the keycap, and at the same time monitor the resistance or on / off signal changes between the first and second power connection elements of the power supply assembly in real time to verify whether the emergency stop switch triggering function is normal and reliable; Step S5: The assembly results, visual inspection images, force control data and functional test results of each step are recorded in real time and bound to the unique identification code of the emergency stop switch, and stored in the database; if an abnormality or test failure is detected at any stage, the system will immediately alarm and automatically divert the product to the rework line. In step S2, a pre-testing step for the performance of the protective component is added: the pre-assembled keycap and the protective component module are placed on a dedicated test fixture; the test fixture applies a multi-cycle pressing load to the keycap simulating the normal operating range, and at the same time, the displacement sensor accurately measures the compression amount of the extension part of the protective component and the rebound amount after reset during each press. Analyze the repeatability error of compression and whether the rebound is sufficient and timely, and determine whether the fatigue performance of the reset element and the elastic recovery capability of the protective element meet the preset standards. Step S3 includes an intelligent verification sub-step for the working status of the first and second pins: after the active connecting element is inserted into the trigger connecting element, the initial positions of the first and second pins are imaged and confirmed using a miniature endoscope camera or through a preset observation window; subsequently, a miniature actuator is controlled to simulate the pushing and pressing action of the active connecting element, slightly pushing the first pin, and the image analysis is used to determine whether the first pin can overcome the force of the first spring under the action of the pushing inclined surface and successfully retract into the first slot, and whether it can be reset under the action of the first spring after the actuator is withdrawn; at the same time, it is monitored whether the second pin can pop out normally under the action of the second spring and be effectively limited by the limiting ring of the active connecting cavity.

Images