An elevator safety touch panel sensing mechanism

Abstract

This utility model relates to the field of elevator safety mechanism technology, and in particular to an elevator safety touch panel sensing mechanism, including a door leaf, a safety touch panel, a curved buffer pad, a micro-motion sensing component, and a pressure sensing component. The door leaf has an internal cavity, and the front side wall of the cavity has a movable opening. Inside the movable opening is a safety touch panel for protection and buffering. The front end of the safety touch panel has a curved buffer pad, and the top and bottom of the rear end of the safety touch panel are equipped with micro-motion sensing components. The middle section of the rear end of the safety touch panel is equipped with a pressure sensing component. This utility model achieves a dual-sensor triggering mode by using the micro-motion sensing component in conjunction with the pressure sensing component as a backup mechanism. When the micro-motion component fails, the protection is forcibly triggered by sensing collision pressure. This combination completely eliminates the hidden danger of safety touch panel failure due to a single component malfunction, significantly improving elevator operation safety.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety mechanism technology, and in particular to an elevator safety touch panel sensing mechanism. Background Technology

[0002] During elevator operation, the safety touch panel is a key component that ensures the safety of passengers going up and down the elevator. Its sensitivity and reliability are directly related to personal safety. When the elevator door is closed, if there is an object or person between the doors, the safety touch panel needs to quickly sense and trigger the door to open in the opposite direction to avoid pinching accidents. With the popularization of high-rise buildings and the increase in the frequency of elevator use, higher requirements are placed on the response speed, buffering performance and dual protection capabilities of the safety touch panel. The traditional safety touch panel structure can no longer meet the safety needs in complex scenarios.

[0003] Traditional safety touch panels typically rely on a single microswitch for feedback. If the microswitch malfunctions, the safety touch panel may fail, posing a safety hazard. Secondly, most traditional safety touch panels use a flat, rigid contact surface, which can generate significant impact force during a collision. This not only affects the lifespan of the safety touch panel but may also cause secondary injuries to passengers.

[0004] Therefore, to address the shortcomings of traditional safety touch panels during use, an elevator safety touch panel sensing mechanism can be designed. By incorporating a micro-motion sensing component and a pressure sensing component, a dual-sensor safety system is formed. The micro-motion sensing component can react quickly when the safety touch panel undergoes a slight displacement, promptly triggering the door control signal. The pressure sensing component, when there is no feedback from the micro-motion sensing component, accurately senses changes in collision pressure, further ensuring that the safety protection mechanism can be accurately activated under various collision conditions, thus facilitating the resolution of the aforementioned problems. Summary of the Invention

[0005] To overcome the shortcomings of traditional safety touch panels, such as the risk of failure and safety hazard if the microswitch suddenly malfunctions; and the fact that most of them use planar hard contact, which can generate large impact forces during collisions, affecting the service life of the safety touch panel and potentially causing secondary injuries to passengers, this utility model provides an elevator safety touch panel sensing mechanism.

[0006] The technical solution is as follows: An elevator safety touch panel sensing mechanism includes a door leaf, a safety touch panel, a curved buffer pad, a micro-motion sensing component, and a pressure sensing component; the door leaf has an internal cavity, and the front side wall of the internal cavity has an opening, inside which is provided a safety touch panel for protection and buffering. The front end of the safety touch panel has a curved buffer pad for further protection and buffering. The top and bottom of the rear end of the safety touch panel are provided with micro-motion sensing components, and the middle section of the rear end of the safety touch panel is provided with a pressure sensing component for providing double insurance.

[0007] Furthermore, guide grooves are provided at the top and bottom of the inner cavity, and a guide shaft is mounted inside the guide groove. One end of the guide shaft is connected to the front side wall of the guide groove, and a first fixing block is provided at the rear end of the guide shaft. The first fixing block is connected to the middle section of the guide groove, and a return spring is sleeved on the outer end of the guide shaft. The rear end of the return spring is connected to the first fixing block, and a connecting ring is provided at the front end of the return spring.

[0008] Furthermore, the safety contact plate is provided with guide seats at the top and bottom of the rear end, and the center of the guide seat is provided with a guide hole corresponding to the guide shaft. The top and bottom edges of the rear end of the safety contact plate are provided with transmission seats, and the center of the transmission seats is provided with transmission holes. The connecting ring fits into the rear end of the guide seat, and the connecting ring and the guide hole are concentrically arranged. Multiple sets of buffer grooves are provided at intervals on both sides of the curved buffer pad, and the multiple sets of buffer grooves are arranged alternately.

[0009] Furthermore, the pressure sensing component includes a pressure plate located inside the foremost buffer groove. A pressure rod is located at the center of the rear end of the pressure plate. The rear end of the pressure rod passes through the curved buffer pad and the safety contact plate and extends into the inner compartment. A pressure hole for accommodating the pressure rod is opened at the center of the pressure plate. A guide sleeve corresponding to the pressure rod is located at the rear end of the pressure hole. A corrugated telescopic tube is located at the rear end of the pressure rod. A pressure sensor is located between the corrugated telescopic tube and the pressure rod. A second fixing block is fixed in the inner cavity at the rear end of the corrugated telescopic tube.

[0010] Furthermore, the micro-motion sensing component includes a fixed plate and a swing arm. The fixed plate has a positioning shaft at the center of its surface, the upper end of the swing arm has a corresponding movable hole at the center of the positioning shaft, and the lower end of the swing arm has a corresponding movable shaft at the center of the transmission hole.

[0011] Furthermore, two sets of connecting blocks are symmetrically arranged at the bottom rear end of the swing arm, and a transmission rod is provided between the two sets of connecting blocks. A transmission spring is sleeved on the outer end of the transmission rod, and one set of connecting blocks is connected to the bottom of the swing arm.

[0012] Furthermore, the rear end of another set of connecting blocks is provided with a micro-motion spring, the lower end of which is connected to the other set of connecting blocks, and the upper end of each micro-motion spring is provided with a micro switch connected to the inner wall of the inner compartment. Both the conduction spring and the return spring are provided with dampers inside.

[0013] The beneficial effects are as follows: This application uses the swing arm, micro-motion spring, and micro-switch within the micro-motion sensing component to sense the minute displacement of the safety touch plate, enabling rapid response to minor collisions; in conjunction with the pressure sensing component's touch plate, pressure sensor, and corrugated telescopic tube as a backup mechanism, it forcibly triggers protection by sensing collision pressure when the micro-motion component fails. The combination of the two forms a dual-sensing trigger mode, completely eliminating the hidden danger of safety touch plate failure due to a single component failure, and significantly improving elevator operation safety; the staggered buffer grooves on the surface of the curved buffer pad disperse the impact force through multi-segment deformation, avoiding the severe impact caused by traditional planar hard contact, and reducing secondary injuries to passengers; at the same time, the dampers inside the return spring and the conduction spring can suppress spring vibration, reducing the amplitude and duration of the safety touch plate's swaying during collision and reset. The combination of the two not only improves the buffering effect during collisions but also ensures the stability of the safety touch plate's movement, extending the service life of the mechanism while improving the reliability of protection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the elevator safety touch panel sensing mechanism of this utility model. Figure 2 This is a three-dimensional structural diagram of the guide shaft and reset spring of this utility model; Figure 3 This is a three-dimensional structural diagram of the micro-motion sensing component of this utility model; Figure 4 This is a three-dimensional structural diagram of the curved buffer pad and safety contact plate of this utility model. Figure 5 This is a three-dimensional structural diagram of the pressure sensing component of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Door leaf; 101. Inner cavity; 102. Movable opening; 103. Guide groove; 104. Guide shaft; 105. Connecting ring; 106. Return spring; 107. First fixing block; 2. Safety contact plate; 201. Contact hole; 202. Guide seat; 203. Guide hole; 204. Transmission seat; 205. Transmission hole; 3. Curved buffer pad; 301. Buffer groove; 4. Micro-motion sensing component; 401. Fixed plate; 402. Positioning shaft; 403. Swing arm; 404. Movable hole; 405. Movable shaft; 406. Micro switch; 407. Micro switch spring; 408. Conductive spring; 409. Connecting block; 410. Damper; 5. Pressure sensing assembly; 501. Contact plate; 502. Contact rod; 503. Guide sleeve; 504. Corrugated telescopic tube; 505. Second fixed block; 506. Pressure sensor. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example

[0017] like Figures 1-5 As shown, an elevator safety touch panel sensing mechanism includes a door leaf 1, a safety touch panel 2, a curved buffer pad 3, a micro-motion sensing component 4, and a pressure sensing component 5. The door leaf 1 has an inner cavity 101, and the front side wall of the inner cavity 101 has an opening 102. The safety touch panel 2 for protection and buffering is provided inside the opening 102. The front end of the safety touch panel 2 has a curved buffer pad 3 for further protection and buffering. The top and bottom of the rear end of the safety touch panel 2 are provided with micro-motion sensing components 4, and the middle section of the rear end of the safety touch panel 2 is provided with a pressure sensing component 5 for providing double protection.

[0018] The inner cavity 101 has guide grooves 103 at both the top and bottom. A guide shaft 104 is mounted inside the guide groove 103. One end of the guide shaft 104 is connected to the front side wall of the guide groove 103. A first fixing block 107 is provided at the rear end of the guide shaft 104. The first fixing block 107 is connected to the middle section of the guide groove 103. A return spring 106 is sleeved on the outer end of the guide shaft 104. The rear end of the return spring 106 is connected to the first fixing block 107. A connecting ring 105 is provided at the front end of the return spring 106. The structure of the guide groove 103, guide shaft 104 and first fixing block 107 provides guidance and fixed support for the movement of the safety contact plate 2, ensuring its stable movement trajectory. The return spring 106 can assist the safety contact plate 2 in resetting after it is moved by a collision, ensuring that the safety contact plate 2 can quickly return to its initial position and maintain normal protective function.

[0019] The safety contact plate 2 has guide seats 202 at both the top and bottom of its rear end. The center of the guide seat 202 has a guide hole 203 corresponding to the guide shaft 104. The top and bottom edges of the rear end of the safety contact plate 2 have transmission seats 204. The center of the transmission seat 204 has a transmission hole 205. The connecting ring 105 fits against the rear end of the guide seat 202. The connecting ring 105 and the guide hole 203 are concentrically arranged. Multiple sets of buffer grooves 301 are spaced apart on both sides of the curved buffer pad 3. The multiple sets of buffer grooves 301 are spaced apart and staggered. The guide seat 202 and the guide hole 203 cooperate with the guide shaft 104 to enable the safety contact plate 2 to move smoothly along the guide shaft 104. The transmission seat 204 and the transmission hole 205 facilitate connection and transmission with other components. The buffer grooves 301 on the curved buffer pad 3 are spaced apart and staggered to increase the buffering effect and further reduce the impact force of the collision.

[0020] The pressure sensing component 5 includes a pressure plate 501 located inside the foremost buffer groove 301. A pressure rod 502 is located at the center of the rear end of the pressure plate 501. The rear end of the pressure rod 502 passes through the curved buffer pad 3 and the safety contact plate 2, extending into the inner compartment. A pressure hole 201 for accommodating the pressure rod 502 is located at the center of the pressure plate 501. A guide sleeve 503 corresponding to the pressure rod 502 is located at the rear end of the pressure hole 201. A corrugated telescopic tube 504 is located at the rear end of the pressure rod 502. A pressure sensor 506 (model RP-) is located between the corrugated telescopic tube 504 and the pressure rod 502. (S40-LT) The rear end of the corrugated telescopic tube 504 is provided with a second fixing block 505 fixed in the inner cavity 101. The pressure plate 501 is located in the buffer groove 301 and can sense the pressure change at the first time during the collision. The pressure rod 502 transmits the pressure change of the pressure plate 501 to the inner chamber. The guide sleeve 503 ensures that the movement direction of the pressure rod 502 is accurate. The corrugated telescopic tube 504 cooperates with the pressure sensor 506 to accurately measure the collision pressure and provide data support for the pressure sensing component 5 to accurately activate the safety protection mechanism. The second fixing block 505 fixes the corrugated telescopic tube 504 to ensure the overall structural stability of the pressure sensing component 5.

[0021] The micro-motion sensing component 4 includes a fixed plate 401 and a swing arm 403. The fixed plate 401 has a positioning shaft 402 at its center. The upper end of the swing arm 403 has a corresponding movable hole 404 at its center. The lower end of the swing arm 403 has a corresponding movable shaft 405 at its center. By cooperating with the positioning shaft 402 on the fixed plate 401 and the movable hole 404 on the swing arm 403, the swing arm 403 can rotate around the positioning shaft 402. This provides a flexible motion structure for the micro-motion sensing component 4 to sense the small displacement of the safety touch panel 2, making it easy to trigger the door panel 1 control signal in a timely manner.

[0022] Two sets of connecting blocks 409 are symmetrically arranged at the bottom rear end of the swing arm 403. A transmission rod is provided between the two sets of connecting blocks 409. A transmission spring 408 is sleeved on the outer end of the transmission rod. One set of connecting blocks 409 is connected to the bottom of the swing arm 403. The two sets of connecting blocks 409, the transmission rod and the transmission spring 408 form an elastic structure, which can play a role in buffering and stabilizing transmission when the safety touch plate 2 drives the swing arm 403 to rotate with a small displacement, so that the movement of the swing arm 403 is more stable and the micro-motion sensing component 4 can accurately sense the displacement change.

[0023] Another set of connecting blocks 409 has a micro spring 407 at its rear end. The lower end of the micro spring 407 is connected to the other set of connecting blocks 409. The upper end of the micro spring 407 is equipped with a micro switch 406 connected to the inner wall of the inner compartment. The conduction spring 408 and the return spring 106 are both equipped with dampers 410. Through the cooperation of the micro spring 407 and the micro switch 406, when the swing arm 403 rotates and drives the connecting block 409 to move, the micro spring 407 deforms and contacts the micro switch 406, which can trigger the door leaf 1 control signal in time. The damper 410 can effectively reduce the vibration amplitude and duration of the spring, making the safety touch plate 2 more stable during collision and reset, and avoiding the sensitivity and reliability of the safety touch plate 2 due to excessive spring vibration.

[0024] During operation, the safety touch plate 2 and the curved buffer pad 3 are in their initial state, and neither the micro-motion sensing component 4 nor the pressure sensing component 5 has a trigger signal. When a passenger or object is between the door panels, it collides with the curved buffer pad 3. At this time, due to its structural rigidity, the curved buffer pad 3 will not deform. It directly drives the safety touch plate 2 to move along the guide shaft 104 towards the inner cavity 101 of the door panel 1 after being subjected to force, triggering the micro-motion sensing component 4 to act, and the door panel 1 immediately opens in the reverse direction. After the collision ends, the reset spring 106 drives the safety touch plate 2 to reset, waiting for the next operation.

[0025] When the micro-motion sensing component 4 does not respond, the curved buffer pad 3 is further compressed and deformed, causing the pressure plate 501 to move backward under pressure, which in turn causes the pressure rod 502 to compress the corrugated telescopic tube 504. The pressure sensor 506 detects the pressure change, and the door 1 immediately opens in the reverse direction.

[0026] Its working principle is as follows: when the safety touch plate 2 is slightly displaced by a minor impact, the transmission seat 204 at the rear end drives the swing arm 403 to rotate around the positioning shaft 402 through the transmission hole 205. The connecting block 409 at the bottom of the swing arm 403 pulls the micro-motion spring 407 to deform. The deformed micro-motion spring 407 contacts the micro-motion switch 406, triggering the door to open in the reverse direction. If the micro-motion sensing component 4 fails to respond due to a malfunction, the safety touch plate 2 continues to move backward, and the pressure plate 501 in the curved buffer pad 3 is squeezed. The pressure rod 502 pushes the pressure in the corrugated telescopic tube 504 to transmit pressure. The pressure sensor 506 senses a change in pressure and sends a signal to force the door leaf 1 to open, forming a double safety mechanism. The staggered buffer grooves 301 of the curved buffer pad 3 disperse the impact force through deformation during a collision, reducing the direct impact force on passengers. When the safety touch plate 2 moves, the guide shaft 104 ensures the stability of the movement trajectory, the return spring 106 is compressed and stores energy, and the damper 410 suppresses the spring vibration to prevent the safety touch plate 2 from shaking excessively. After the collision, the return spring 106 releases energy and pushes the safety touch plate 2 to reset along the guide shaft 104.

[0027] Its beneficial effects are significant. This application uses the swing arm 403, micro-motion spring 407, and micro-switch 406 in the micro-motion sensing component 4 to sense the minute displacement of the safety touch plate 2, which can quickly respond to minor collisions. In conjunction with the pressure sensing component 5, the pressure plate 501, pressure sensor 506, and corrugated telescopic tube 504 serve as a backup mechanism. When the micro-motion component fails, it forcibly triggers protection by sensing the collision pressure. The combination of the two forms a dual sensing trigger mode, which completely eliminates the hidden danger of safety touch plate 2 failure caused by the failure of a single component, and greatly improves the safety of elevator operation. The staggered buffer grooves 301 on the surface of the curved buffer pad 3 disperse the impact force of the collision through multi-segment deformation, avoiding the violent impact caused by traditional planar hard contact and reducing secondary injuries to passengers. At the same time, the damper 410 inside the reset spring 106 and the conduction spring 408 can suppress spring vibration and reduce the amplitude and duration of the swaying of the safety touch plate 2 during the collision and reset process. The combination of the two not only improves the buffering effect during the collision, but also ensures the stability of the movement of the safety touch plate 2, extends the service life of the mechanism, and improves the reliability of protection.

Claims

1. A sensing mechanism for an elevator safety touch panel (2), comprising a door leaf (1); characterized in that, It also includes a safety touch plate (2), a curved buffer pad (3), a micro-motion sensing component (4), and a pressure sensing component (5); the door leaf (1) has an inner cavity (101) inside, and an opening (102) is provided on the front side wall of the inner cavity (101). The opening (102) is provided with a safety touch plate (2) for protection and buffering. The front end of the safety touch plate (2) is provided with a curved buffer pad (3) for further protection and buffering. The top and bottom of the rear end of the safety touch plate (2) are provided with micro-motion sensing components (4). The middle section of the rear end of the safety touch plate (2) is provided with a pressure sensing component (5) for providing double insurance.

2. The elevator safety contact plate (2) sensing mechanism according to claim 1, characterized in that, The top and bottom of the inner cavity (101) are provided with guide grooves (103). A guide shaft (104) is mounted inside the guide groove (103). One end of the guide shaft (104) is connected to the front side wall of the guide groove (103). A first fixing block (107) is provided at the rear end of the guide shaft (104). The first fixing block (107) is connected to the middle section of the guide groove (103). A reset spring (106) is sleeved on the outer end of the guide shaft (104). The rear end of the reset spring (106) is connected to the first fixing block (107). A connecting ring (105) is provided at the front end of the reset spring (106).

3. The elevator safety contact plate (2) sensing mechanism according to claim 2, characterized in that, The safety contact plate (2) has guide seats (202) at the top and bottom of its rear end. The center of the guide seat (202) has a guide hole (203) corresponding to the guide shaft (104). The top and bottom edges of the rear end of the safety contact plate (2) have transmission seats (204). The center of the transmission seat (204) has a transmission hole (205). The connecting ring (105) fits against the rear end of the guide seat (202). The connecting ring (105) and the guide hole (203) are concentrically arranged. Multiple sets of buffer grooves (301) are spaced apart on both sides of the curved buffer pad (3). The multiple sets of buffer grooves (301) are spaced apart and staggered.

4. The elevator safety contact plate (2) sensing mechanism according to claim 3, characterized in that, The pressure sensing component (5) includes a pressure plate (501), which is located inside the front buffer groove (301). A pressure rod (502) is provided at the center of the rear end of the pressure plate (501). The rear end of the pressure rod (502) extends through the curved buffer pad (3) and the safety contact plate (2) into the inner compartment. A pressure hole (201) for accommodating the pressure rod (502) is provided at the center of the pressure plate (501). A guide sleeve (503) corresponding to the pressure rod (502) is provided at the rear end of the pressure hole (201). A corrugated telescopic tube (504) is provided at the rear end of the pressure rod (502). A pressure sensor (506) is provided between the corrugated telescopic tube (504) and the pressure rod (502). A second fixing block (505) fixed in the inner cavity (101) is provided at the rear end of the corrugated telescopic tube (504).

5. The elevator safety contact plate (2) sensing mechanism according to claim 4, characterized in that, The micro-motion sensing component (4) includes a fixed plate (401) and a swing arm (403). The fixed plate (401) has a positioning shaft (402) at the center of its surface. The upper end of the swing arm (403) has a movable hole (404) corresponding to the positioning shaft (402) at its center. The lower end of the swing arm (403) has a movable shaft (405) corresponding to the transmission hole (205) at its center.

6. The elevator safety contact plate (2) sensing mechanism according to claim 5, characterized in that, Two sets of connecting blocks (409) are symmetrically arranged at the bottom rear end of the swing arm (403). A transmission rod is provided between the two sets of connecting blocks (409), and a transmission spring (408) is sleeved on the outer end of the transmission rod. One set of connecting blocks (409) is connected to the bottom of the swing arm (403).

7. The elevator safety contact plate (2) sensing mechanism according to claim 6, characterized in that, The rear end of another set of connecting blocks (409) is provided with a micro switch (407). The lower end of the micro switch (407) is connected to the other set of connecting blocks (409). The upper end of the micro switch (407) is provided with a micro switch (406) connected to the inner wall of the inner compartment. The conduction spring (408) and the return spring (106) are both provided with dampers (410).

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