An anti-stuck automatic reset ultra-thin elevator lock

Abstract

The application discloses an anti-jamming automatic reset ultra-thin elevator lock and relates to the technical field of elevators. The application comprises a fixed lock plate fixedly installed on an elevator steel structure and two elevator door hangers connected with elevator door driving, the two elevator door hangers are symmetrically distributed on the two sides of the fixed lock plate, a plurality of overlapping locking rings are arranged between the two elevator door hangers, one side of the bottom of the fixed lock plate is provided with a locking column matched with the locking ring, and one side of the fixed lock plate is provided with a locking assembly used for driving the locking column to be inserted into the locking ring to lock the elevator door along with the movement of the elevator door hanger and supporting the trapped personnel to open the elevator door by a certain gap when power failure occurs so as to improve the rescue rate. When the elevator fails, the locking assembly can prevent the elevator door from being locked, the passenger can open the elevator door by a certain gap, light can enter and air can circulate, the propagation of signals and sound is enhanced, and rescue is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an anti-stuck automatic reset ultra-thin elevator lock. Background Art

[0002] Elevators are complex machines. To prevent accidents caused by passengers manually opening the elevator doors, many elevators are equipped with elevator door interlocks, also known as elevator locks. These devices ensure that the elevator doors are opened only when the elevator is on the same floor or during maintenance operations. Existing elevator lock control components are typically solenoids, which are mechanisms in which an actuator remains in a default position until current is applied to cause the actuator to move to an energized position.

[0003] Existing elevator locks usually use solenoids as excitation mechanisms to control the operation of the elevator lock mechanism. However, once a fault occurs in a running elevator, the solenoid, which is disconnected from the power supply, loses its excitation effect, and the locking mechanism remains locked. Passengers in the elevator, especially children, are unable to open the elevator from the inside. They will face a harsh environment with dim light, weak signal, lack of oxygen, and poor sound insulation, making it difficult for them to save themselves or call for help. Therefore, an anti-stuck, automatic reset, ultra-thin elevator lock is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that existing elevator locks usually use solenoids as excitation mechanisms to control the operation of the elevator lock mechanism. However, once a fault occurs in the running elevator, the solenoid loses its excitation effect after the power is disconnected, and the locking mechanism remains locked. Passengers in the elevator, especially children, are unable to open the elevator from the inside. They are faced with a harsh environment of dim light, weak signal, lack of oxygen, and sound insulation, making it difficult for them to save themselves or call for help. The present invention provides an anti-stuck, automatic reset, ultra-thin elevator lock.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A jam-proof, automatic-reset, ultra-thin elevator lock comprises a fixed lock plate fixedly mounted on an elevator steel structure and two elevator door hangers connected to an elevator door drive, the two elevator door hangers being symmetrically distributed on both sides of the fixed lock plate, a plurality of overlapping locking rings being arranged between the two elevator door hangers, a locking column adapted to the locking ring being arranged on one side of the bottom of the fixed lock plate, and a locking assembly being arranged on one side of the fixed lock plate for driving the locking column to be inserted into the locking ring as the elevator door moves, locking the elevator door, and supporting trapped persons to open the elevator door to a certain gap when the power is off to increase the rescue rate.

[0007] Furthermore, the locking assembly includes a driven gear ring rotatably mounted on one side of the fixed lock plate, a center fixed rod fixedly mounted on one side of the fixed lock plate, a reduction gear ring rotatably sleeved on the center fixed rod and meshing with the driven gear ring, the outer diameter of the center fixed rod is larger than the outer diameter of the driven gear ring, a driving rack meshing with the driven gear ring is slidably mounted on one side of the fixed lock plate, one side of the driving rack is fixedly connected to one of the elevator door hangers, a fixing bracket is fixedly mounted on one side of the bottom of the fixed lock plate, a guide ring adapted to the locking column is fixedly mounted on one end of the fixing bracket, and a return spring is sleeved on the top of the locking column. One end of the central fixed rod is provided with a delay unit for delaying the squeezing of the locking column as the reduction gear ring rotates so that it is inserted into a plurality of locking rings for locking. The reset spring is located between the guide ring and the delay unit. A buffer slide rail is fixedly installed on one side of the elevator door hanger plate, and a first slider is slidably installed inside the buffer slide rail. A buffer spring is fixedly installed between the first slider and the inner wall of the buffer slide rail. A driving rod is fixedly installed on one side of the first slider, and a locking plate is fixedly installed on one end of the driving rod. A plurality of locking rings are fixedly installed on the side walls of the two locking plates in an alternating manner.

[0008] The top of the gear train is fixedly mounted on the gear train, and the gear train is connected with the gear train by a threaded cantilever cam, and the gear train is connected with the gear train by a threaded cantilever cam, and the gear train is connected with the gear train by a threaded cantilever cam.

[0009] Furthermore, the side wall of the locking column is a rectangular structure, the cross section of the locking column is a polygonal structure, and a plurality of evenly distributed long rollers are provided on the peripheral side, and the long rollers are all in contact with the inner wall of the locking ring.

[0010] Furthermore, baffles are fixedly installed around the side where the two locking plates are close to each other, and the length of the baffles is set to the distance between the locking ring and the locking plate. A movable baffle is fixedly installed on the top of the locking plate, and a fixed baffle whose position corresponds to the movable baffle is fixedly installed on one side of the fixed lock plate. The two fixed baffles are located between the two movable baffles, and the two movable baffles are symmetrically distributed on both sides of the locking column.

[0011] Furthermore, limiting slide rails are fixedly installed on both sides of the fixed load box, the bottom ends of the two limiting slide rails are symmetrically distributed on both sides of the movable load box, and fourth sliders are slidably installed inside the limiting slide rails, and the ends of the two fourth sliders close to each other are fixedly installed on both sides of the movable load box, and magnetic plates with corresponding positions are fixedly installed inside the limiting slide rails and on the tops of the fourth sliders, and the spacing between the magnetic plates on the top and bottom sides is set to the length of the locking column.

[0012] Furthermore, the bottom of the fixed load box and the top of the movable load box are both configured to be arc-shaped, and round rods are fixedly installed on both sides of one end of the central fixed rod located inside the fixed load box, and arc-shaped baffles adapted to the bottom of the fixed load box are fixedly installed on the ends of the two round rods that are away from each other, and the positions of the arc-shaped baffles correspond to the positions of the leakage pipes fixedly connected to the fixed load box.

[0013] Furthermore, a plurality of evenly distributed threaded rods are fixedly installed on the circumferential side of the bottom of the load block, one end of each threaded rod is screwed with a threaded sleeve, the bottom end of each threaded sleeve is provided with a rotating hole, a ball with an outer diameter larger than the inner diameter of the rotating hole is provided in the rotating hole, an isolation rod is fixedly installed on the end of the threaded rod close to the ball, and the end of the isolation rod close to the ball is set to be an arc shape.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention provides a locking assembly so that when an elevator malfunctions, the locking assembly provides margin for the movement of the elevator door hanger plate. Passengers in the elevator car can push the elevator door to the sides, which will drive the elevator door hanger plate to the sides, allowing the elevator door to open a certain gap to allow light to enter and air to circulate, thus breaking the dilemma caused by the confined space, enhancing the transmission of signals and sounds, and speeding up the rescue of passengers.

[0016] 2. The present invention provides a delay component so that the sliding of the metal particles delays the downward movement of the locking post, allowing time for the multiple locking rings to connect with each other, thus avoiding the locking post and locking ring misalignment and causing jamming. Similarly, when the elevator door opens, the previously squeezed buffer spring provides buffer time for the locking post to be withdrawn, ensuring that the elevator door can be locked or unlocked smoothly when closing or opening, effectively avoiding jamming of the locking ring and locking post.

[0017] 3. The present invention provides a delayed trigger element with metal particles that roll back and forth with the change of the center of gravity. This does not require an electric drive and can operate normally even when the elevator malfunctions. The metal particles cooperate stably with the fixed load box, etc. The arc-shaped baffle can block the leakage pipe fixedly connected to the fixed load box when the movable load box is not directly below the fixed load box, preventing the metal particles inside the fixed load box from sliding down prematurely and causing the movable load box to get stuck.

[0018] 4. The elevator lock of the present invention has a sophisticated structure. The fixed lock plate, fixed load box, movable load box, etc. are all flat structures, which greatly reduces the thickness of the entire elevator lock structure, so that the elevator lock does not occupy a lot of space. In addition, the elevator lock is directly connected to the elevator steel structure and is an external installation mechanism of the elevator door hanger plate. There is no need to change the structure of the elevator itself, so it has a wider range of applications.

[0019] 5. The present invention is provided with a ball, which can reduce the friction between the load block and the arc-shaped slide rail. At the same time, the threaded sleeve can be rotated to unscrew the threaded sleeve from the threaded rod to replace the ball. The replaceable ball replaces the load block in contact with the arc-shaped slide rail, thereby improving the load capacity of the load block, improving the smoothness of the relative sliding between the load block and the arc-shaped slide rail, and extending the service life of both. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the driving rack and the reduction gear ring of the present invention;

[0022] Figure 3 It is a schematic structural diagram of A in soil 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the locking column of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the locking ring and the buffer slide rail of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the fixed load box and the movable load box of the present invention;

[0026] Figure 7This is a schematic diagram of the three-dimensional structure of the leakage pipe of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the threaded sleeve of the present invention;

[0028] Figure numerals: 1. fixed lock plate; 2. elevator door hanger plate; 3. locking ring; 4. locking column; 5. driven gear ring; 6. center fixed rod; 7. reduction gear ring; 8. driving rack; 9. fixed bracket; 10. guide ring; 11. return spring; 12. buffer slide rail; 13. first slider; 14. buffer spring; 15. driving rod; 16. locking plate; 17. fixed load box; 18. movable load box; 19. leakage pipe; 20. load block; 21. oblique retaining ring; 22. arcuate slide rail; 23. guide slide rail; 24. third slider; 25. limit slide rail; 26. fourth slider; 27. magnetic plate; 28. arc baffle; 29. ​​threaded rod; 30. threaded sleeve; 31. ball; 32. isolation rod; 33. long roller; 34. baffle; 35. movable baffle; 36. fixed baffle. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] like Figures 1 to 8 The present invention provides an anti-stuck automatic reset ultra-thin elevator lock, comprising a fixed lock plate 1 fixedly mounted on the elevator steel structure and two elevator door hangers 2 connected to the elevator door drive, the two elevator door hangers 2 are symmetrically distributed on both sides of the fixed lock plate 1, and a plurality of overlapping locking rings 3 are arranged between the two elevator door hangers 2. A locking column 4 adapted to the locking ring 3 is arranged on one side of the bottom of the fixed lock plate 1, and a locking component for driving the locking column 4 to be inserted into the locking ring 3 as the elevator door hangers 2 move to lock the elevator door and support trapped personnel to open the elevator door to a certain gap when the power is off to improve the rescue rate. Specifically, the anti-stuck automatic reset ultra-thin elevator lock is provided with a locking component so that when the two elevator door hangers 2 approach each other as the elevator door moves, the power is The elevator door hanger plate 2 will drive the locking column 4 to move downward through the locking assembly. At this time, as the elevator door hanger plate 2 approaches, the elevator door hanger plate 2 will drive the multiple locking rings 3 on both sides to be staggered and spliced ​​together through the locking assembly. Then the locking column 4 will be inserted into the multiple locking rings 3 to fix the elevator door hangers 2 on both sides to complete the locking of the elevator door. When the elevator fails, the elevator door of a traditional elevator is stuck after a power outage. In this invention, the locking assembly can provide a margin for the movement of the elevator door hanger plate 2. Passengers in the elevator car can push the elevator door to both sides. The elevator door will drive the elevator door hanger plate 2 to move to both sides, so that the elevator door can open a certain gap to allow light to enter and air to circulate, breaking the predicament caused by the confined space, enhancing the transmission of signals and sound, and speeding up the rescue of passengers.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, the locking assembly includes a driven gear ring 5 rotatably mounted on one side of the fixed lock plate 1, a center fixed rod 6 is fixedly mounted on one side of the fixed lock plate 1, a reduction gear ring 7 meshing with the driven gear ring 5 is rotatably sleeved on the center fixed rod 6, the outer diameter of the center fixed rod 6 is larger than the outer diameter of the driven gear ring 5, a driving rack 8 meshing with the driven gear ring 5 is slidably mounted on one side of the fixed lock plate 1, one side of the driving rack 8 is fixedly connected to one of the elevator door hangers 2, a fixed bracket 9 is fixedly mounted on one side of the bottom of the fixed lock plate 1, a guide ring 10 adapted to the locking column 4 is fixedly mounted on one end of the fixed bracket 9, a return spring 11 is sleeved on the top of the locking column 4, and the center fixed rod 6 is fixed on the bottom of the fixed lock plate 1. One end of the elevator door is provided with a delay unit for delaying the extrusion of the locking column 4 as the reduction gear ring 7 rotates so that it is inserted into multiple locking rings 3 for locking. The return spring 11 is located between the guide ring 10 and the delay unit. A buffer slide rail 12 is fixedly installed on one side of the elevator door hanger 2. A first slider 13 is slidably installed inside the buffer slide rail 12. A buffer spring 14 is fixedly installed between the first slider 13 and the inner wall of the buffer slide rail 12. A driving rod 15 is fixedly installed on one side of the first slider 13. A locking plate 16 is fixedly installed on one end of the driving rod 15. Multiple locking rings 3 are staggered and fixedly installed on the side walls of the two locking plates 16. The structure is that, by setting a locking assembly, when the two elevator door hangers 2 approach each other with the movement of the elevator door, the elevator door hanger 2 will drive the driven gear ring 5 to rotate through the driving rack 8, and then drive the meshing reduction gear ring 7 to slow down the rotation, thereby driving the delay unit to rotate and squeeze the locking column 4 downward, so that the return spring 11 is compressed and the locking column 4 is driven to move downward. At this time, as the elevator door hanger 2 approaches, the elevator door hanger 2 will drive the multiple locking rings 3 on both sides to be staggered and spliced ​​together through the buffer slide rail 12, the driving rod 15, and the locking plate 16, and the buffer spring 14 is compressed, leaving a space for the movement of the locking column 4. After a certain period of time, the locking column 4 will be inserted into multiple locking rings 3 to fix the elevator door hangers 2 on both sides, completing the locking of the elevator door. When the elevator fails, the traditional elevator will be stuck after the power is cut off. In this invention, the buffer spring 14 arranged inside the buffer slide rail 12 can provide a margin for the movement of the elevator door hanger 2. Passengers in the elevator car can push the elevator door to both sides. The elevator door will drive the elevator door hanger 2 to move to both sides to stretch the buffer spring 14, so that the elevator door can open a certain gap to allow light to enter and air to circulate, breaking the predicament caused by the confined space, enhancing the transmission of signals and sound, and speeding up the rescue of passengers.

[0035] like Figure 4 、 Figure 6 、 Figure 7As shown, the delay assembly includes a fixed load box 17 that is rotatably sleeved on the central fixed rod 6. The fixed load box 17 is fixedly connected to the reduction gear ring 7. A movable load box 18 is provided at the bottom of the fixed load box 17. A leakage pipe 19 is fixedly installed between the fixed load box 17 and the movable load box 18. Slide holes are provided at the bottom of the fixed load box 17 and the top of the movable load box 18. The two leakage pipes 19 are staggered at one end and pass through the two slide holes respectively and are fixedly installed with an oblique retaining ring 21. The fixed load box 17 is loaded with metal particles. The diameter of the metal particles is set to be larger than the diameter of the slide hole and the leakage pipe 19. With the matching clearance, a load block 20 is fixedly installed at the bottom of the movable load box 18, and an arc-shaped slide rail 22 which is coaxial with the central fixed rod 6 and adapted to the load block 20 is fixedly installed on the top of the locking column 4. The two ends of the return spring 11 are respectively fixedly connected to the guide ring 10 and the arc-shaped slide rail 22. A guide slide rail 23 is fixedly installed on one side of the fixed lock plate 1, and a third slider 24 is slidably installed inside the guide slide rail 23. One side of the third slider 24 is fixedly installed on the side wall of the arc-shaped slide rail 22. Specifically, by setting a delay component, the rotating reduction gear ring 7 will drive the fixed load box 17 to rotate. The movable load box 18 is rotated, thereby rotating the movable load box 18 to the bottom of the fixed load box 17. Then, the metal particles inside the fixed load box 17 will gradually slide into the movable load box 18 through the leakage pipe 19 fixedly connected to the fixed load box 17, increasing the weight of the movable load box 18, causing the movable load box 18 to slide downward until the movable load box 18 overcomes the elastic force of the return spring 11 and drives the load block 20 to press the locking column 4 downward, causing the locking column 4 to move downward and insert into the locking ring 3 for locking. It takes a certain amount of time for the metal particles to slide down, which reserves time for the mutual splicing of multiple locking rings 3, so that the locking column 4 is lowered. When the elevator door is opened, the fixed load box 17 drives the movable load box 18 to rotate upward, releasing the squeeze on the locking column 4, and the locking column 4 is reset. The two staggered leakage tubes 19 will slide in the sliding holes of the fixed load box 17 and the movable load box 18 respectively until the movable load box 18 is at the top of the fixed load box 17. The metal particles inside the movable load box 18 will slide along the leakage tubes 19 fixedly connected to the movable load box 18 back into the fixed load box 17 to be used next time.

[0036] like Figure 4As shown, the side wall of the locking column 4 is a rectangular structure, the cross-section of the locking column 4 is a polygonal structure, and a plurality of evenly distributed long rollers 33 are provided on the circumference thereof, and the long rollers 33 are all in contact with the inner wall of the locking ring 3; specifically, the rectangular side surface and polygonal cross-section of the locking column 4 give the locking column 4 a higher moment of inertia of section, which can obtain greater bending rigidity and strength, effectively preventing it from being squeezed and deformed by the locking ring 3 when the elevator door is opened, and the provision of the long rollers 33 can reduce the friction between the locking column 4 and the locking ring 3, so that the locking column 4 can be more smoothly withdrawn and reset from the locking ring 3.

[0037] like Figure 3 As shown, baffle rods 34 are fixedly installed around the side where the two locking plates 16 are close to each other, and the length of the baffle rods 34 is set to the spacing between the locking ring 3 and the locking plate 16, and a movable baffle 35 is fixedly installed on the top of the locking plate 16, and a fixed baffle 36 is fixedly installed on one side of the fixed lock plate 1, and the position of the fixed baffle 36 corresponding to the movable baffle 35 is fixedly installed. The two fixed baffles 36 are located between the two movable baffles 35, and the two movable baffles 35 are symmetrically distributed on both sides of the locking column 4; specifically, by setting the baffle rods 34, movable baffles 35, and fixed baffles 36, the baffle rods 34, movable baffles 35, and fixed baffles 36 on both sides cooperate with each other to block the two locking plates 16, so that multiple locking rings 3 can be accurately spliced ​​together without misalignment, so as to avoid affecting the insertion of the locking column 4 and further prevent the occurrence of jamming.

[0038] like Figure 6 As shown, both sides of the fixed load box 17 are fixedly installed with limiting slide rails 25, and the bottom ends of the two limiting slide rails 25 are symmetrically distributed on both sides of the movable load box 18. The inner parts of the limiting slide rails 25 are slidably installed with fourth sliders 26, and the ends of the two fourth sliders 26 close to each other are fixedly installed on both sides of the movable load box 18. The inner parts of the limiting slide rails 25 and the tops of the fourth sliders 26 are fixedly installed with magnetic plates 27 at corresponding positions. The spacing between the magnetic plates 27 on the top and bottom sides is set to the length of the locking column 4; Specifically, the setting of the limiting slide rail 25 allows the fixed load box 17 and the movable load box 18 to slide relative to each other through the fourth slider 26, so that the weight of the movable load box 18 is shared by the leakage pipe 19. Moreover, when the movable load box 18 rotates to the top of the fixed load box 17, the two magnetic plates 27 can be tightly adsorbed against each other, thereby preventing the movable load box 18 from sliding down prematurely when rotating downward and colliding with other parts that have not been squeezed downward, causing a jam. The movable load box 18 will not move downward until its own weight increases enough to overcome the magnetic attraction force.

[0039] like Figure 6As shown, the bottom of the fixed load box 17 and the top of the movable load box 18 are both arranged in an arc shape, and round rods are fixedly installed on both sides of one end of the central fixed rod 6 located inside the fixed load box 17, and an arc-shaped baffle 28 adapted to the bottom of the fixed load box 17 is fixedly installed at one end of the two round rods away from each other. The position of the arc-shaped baffle 28 corresponds to the position of the leakage pipe 19 fixedly connected to the fixed load box 17; specifically, by providing the arc-shaped baffle 28, the arc-shaped baffle 28 can block the leakage pipe 19 fixedly connected to the fixed load box 17 when the movable load box 18 is not directly below the fixed load box 17, so as to prevent the metal particles inside the fixed load box 17 from sliding down prematurely and causing the movable load box 18 to slide down, resulting in a jam.

[0040] like Figure 3 、 Figure 8 As shown, a plurality of evenly distributed threaded rods 29 are fixedly installed on the bottom circumference of the load block 20, and one end of the threaded rod 29 is screwed with a threaded sleeve 30. The bottom end of the threaded sleeve 30 is provided with a rotating hole, and a ball 31 with an outer diameter larger than the inner diameter of the rotating hole is provided in the rotating hole. An isolation rod 32 is fixedly installed on the end of the threaded rod 29 close to the ball 31, and the end of the isolation rod 32 close to the ball 31 is set in an arc shape; specifically, in the process of locking the elevator door, the load between the load block 20 and the curved slide rail 22 is relatively large. By providing the ball 31, the friction between the load block 20 and the curved slide rail 22 can be reduced. At the same time, the threaded sleeve 30 can be rotated to unscrew the threaded sleeve 30 from the threaded rod 29 and replace the ball 31. The replaceable ball 31 replaces the load block 20 in contact with the curved slide rail 22, thereby improving the load capacity of the load block 20, improving the smoothness of the relative sliding between the load block 20 and the curved slide rail 22, and extending the service life of both.

[0041] In summary: the anti-stuck automatic reset ultra-thin elevator lock is provided with a locking component, so that when the two elevator door hangers 2 approach each other with the movement of the elevator door, the elevator door hanger 2 will drive the driven gear ring 5 to rotate through the driving rack 8, and then drive the meshing reduction gear ring 7 to slow down the rotation, and then drive the delay unit to rotate and squeeze the locking column 4 downward, so that the reset spring 11 is compressed and the locking column 4 is driven to move downward. At this time, as the elevator door hanger 2 approaches, the elevator door hanger 2 will drive the multiple locking rings 3 on both sides to be staggered and spliced ​​together through the buffer slide rail 12, the drive rod 15, and the locking plate 16, and at the same time compress the buffer spring 14 to compress the locking column 4. A certain amount of time is reserved for the movement process, and then the locking column 4 will be inserted into the multiple locking rings 3 to fix the elevator door hanger plates 2 on both sides, completing the locking of the elevator door. When the elevator malfunctions, the elevator door of a traditional elevator is stuck after a power outage. In this invention, the buffer spring 14 set inside the buffer slide rail 12 can provide a margin for the movement of the elevator door hanger plates 2. Passengers in the elevator car can push the elevator door to both sides, and the elevator door will drive the elevator door hanger plates 2 to both sides, causing the buffer spring 14 to stretch, so that the elevator door can open a certain gap to allow light to enter and air to circulate, breaking the dilemma caused by the confined space, enhancing the transmission of signals and sound, and speeding up the rescue of passengers.

[0042] By setting the time delay component, the rotating deceleration gear ring 7 will drive the fixed load box 17 to rotate, so as to transfer the movable load box 18 to the bottom of the fixed load box 17, and then the metal particles in the fixed load box 17 will successively slide through the leakage pipe 19 fixedly connected with the fixed load box 17 to fall into the movable load box 18 to increase the weight of the movable load box 18, so that the movable load box 18 slides downward until the movable load box 18 overcomes the elastic force of the return spring 11 to drive the load block 20 to press the locking column 4 downward, so that the locking column 4 moves downward to insert into the locking ring 3 for locking. The sliding of the metal particles needs a certain time, which reserves time for the mutual splicing of the plurality of locking rings 3, so that when the locking column 4 slides downward, the locking ring 3 has been spliced, avoiding the misalignment of the locking column 4 and the locking ring 3 to cause jamming. Similarly, when the elevator door is opened and the elevator door hanger plate 2 is reset, the locking column 4 moves upward but still has part in the locking ring 3, so that the locking ring 3 cannot be separated. The compression buffer spring 14 will be stretched at this time, so that the elevator door can be normally opened with a certain gap, until the locking column 4 is completely separated from the locking ring 3, so that the locking ring 3 can be separated, ensuring that the elevator door can be smoothly locked or unlocked when the elevator door is closed or opened, effectively avoiding the jamming of the locking ring 3 and the locking column 4. When the elevator door is opened, the fixed load box 17 drives the movable load box 18 to rotate upward, releasing the compression of the locking column 4, and the locking column 4 resets. The two staggered leakage pipes 19 will slide in the sliding hole of the fixed load box 17 and the movable load box 18 respectively, until the movable load box 18 is located at the top of the fixed load box 17, and the metal particles in the movable load box 18 will slide along the leakage pipe 19 fixedly connected with the movable load box 18 to fall into the fixed load box 17 for next use.

[0043] The rectangular side and polygonal cross-section of the locking column 4 give the locking column 4 a higher sectional inertia moment, which can obtain greater bending rigidity and strength, effectively preventing it from being squeezed and deformed by the locking ring 3 when the elevator door is opened. The provision of the long roller 33 can reduce the friction between the locking column 4 and the locking ring 3, so that the locking column 4 can be more smoothly withdrawn and reset from the locking ring 3. By providing the blocking rod 34, the movable baffle 35, and the fixed baffle 36, the blocking rods 34, the movable baffle 35, and the fixed baffle 36 on both sides cooperate with each other to block the two locking plates 16, so that multiple locking rings 3 can be accurately spliced ​​together. The movable load box 18 can be moved by the second slider 26 to the fixed load box 17 and the second slider 26 to the movable load box 18. When the movable load box 18 rotates to the top of the fixed load box 17, the two magnetic plates 27 can be tightly attached to each other to prevent the movable load box 18 from sliding down too early when the movable load box 18 rotates downward and colliding with the parts that are not squeezed downward, causing a jam. The movable load box 18 will not be driven until its own weight increases to overcome the magnetic attraction. When the movable load box 18 is not located directly below the fixed load box 17, the arc-shaped baffle 28 is provided so that the arc-shaped baffle 28 can block the leakage pipe 19 fixedly connected to the fixed load box 17 to prevent the metal particles inside the fixed load box 17 from sliding down prematurely and causing the movable load box 18 to slide down and cause a jam. In the process of locking the elevator door, the load block 20 and the arc-shaped slide rail 22 bear a large load. By providing the ball bearing 31, the friction between the load block 20 and the arc-shaped slide rail 22 can be reduced. At the same time, the threaded sleeve 30 can be rotated to unscrew the threaded sleeve 30 from the threaded rod 29 to tighten the ball bearing. 31 is replaced, and the replaceable ball 31 replaces the load block 20 in contact with the arc slide rail 22, thereby improving the load capacity of the load block 20, improving the smoothness of the relative sliding between the load block 20 and the arc slide rail 22, and extending the service life of the two. The elevator lock has a sophisticated structure, and the fixed lock plate 1, the fixed load box 17, the movable load box 18, etc. are all flat structures, which greatly reduces the thickness of the entire elevator lock structure, so that the elevator lock does not occupy more space, and the elevator lock is directly connected to the elevator steel structure, and is an external mechanism of the elevator door hanger plate 2, without changing the structure of the elevator itself, so it has a wider range of applications.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-stuck automatic reset ultra-thin elevator lock, characterized in that: The invention comprises a fixed lock plate (1) fixedly mounted on an elevator steel structure and two elevator door hangers (2) connected to the elevator door drive, wherein the two elevator door hangers (2) are symmetrically distributed on both sides of the fixed lock plate (1), and a plurality of overlapping locking rings (3) are arranged between the two elevator door hangers (2). A locking column (4) adapted to the locking ring (3) is arranged on one side of the bottom of the fixed lock plate (1), and a locking assembly is arranged on one side of the fixed lock plate (1) for driving the locking column (4) to be inserted into the locking ring (3) along with the movement of the elevator door hangers (2) to lock the elevator door and can support trapped persons to open the elevator door to a certain gap when the power is off to improve the rescue rate; The locking assembly includes a driven gear ring (5) rotatably mounted on one side of the fixed lock plate (1), a center fixed rod (6) fixedly mounted on one side of the fixed lock plate (1), a reduction gear ring (7) meshing with the driven gear ring (5) rotatably sleeved on the center fixed rod (6), the outer diameter of the center fixed rod (6) is larger than the outer diameter of the driven gear ring (5), a driving rack (8) meshing with the driven gear ring (5) is slidably mounted on one side of the fixed lock plate (1), one side of the driving rack (8) is fixedly connected to one of the elevator door hangers (2), a fixed bracket (9) is fixedly mounted on one side of the bottom of the fixed lock plate (1), one end of the fixed bracket (9) is fixedly mounted with a guide ring (10) adapted to the locking column (4), the top end of the locking column (4) is sleeved with a return spring (11), the center fixed rod (6) is a fixed rod, and the center fixed rod (6) is a fixed rod. One end of the fixed rod (6) is provided with a delay unit for delaying the extrusion of the locking column (4) as the reduction gear ring (7) rotates so that the locking column (4) is inserted into the plurality of locking rings (3) for locking. The reset spring (11) is located between the guide ring (10) and the delay unit. A buffer slide rail (12) is fixedly installed on one side of the elevator door hanging plate (2). A first slider (13) is slidably installed inside the buffer slide rail (12). A buffer spring (14) is fixedly installed between the first slider (13) and the inner wall of the buffer slide rail (12). A driving rod (15) is fixedly installed on one side of the first slider (13). A locking plate (16) is fixedly installed at one end of the driving rod (15). The plurality of locking rings (3) are fixedly installed on the side walls of two locking plates (16) in an alternating manner.

2. The anti-stuck automatic reset ultra-thin elevator lock according to claim 1, characterized in that: The delay unit comprises a fixed load box (17) rotatably sleeved on the central fixed rod (6), the fixed load box (17) is fixedly connected to the reduction gear ring (7), a movable load box (18) is provided at the bottom of the fixed load box (17), a leakage pipe (19) is fixedly installed between the fixed load box (17) and the movable load box (18), a sliding hole is provided at the bottom of the fixed load box (17) and the top of the movable load box (18), and one end of the two leakage pipes (19) interlaced with each other passes through the two sliding holes and is fixedly installed with an oblique retaining ring (21), the fixed load box (17) is loaded with metal particles, and the straightness of the metal particles is 0. The diameter is set to be larger than the matching clearance between the sliding hole and the leakage pipe (19), the bottom of the movable load box (18) is fixedly installed with a load block (20), the top of the locking column (4) is fixedly installed with an arc-shaped slide rail (22) coaxial with the central fixed rod (6) and adapted to the load block (20), the two ends of the return spring (11) are respectively fixedly connected to the guide ring (10) and the arc-shaped slide rail (22), one side of the fixed lock plate (1) is fixedly installed with a guide slide rail (23), the inner part of the guide slide rail (23) is slidably installed with a third slider (24), and one side of the third slider (24) is fixedly installed on the side wall of the arc-shaped slide rail (22).

3. The anti-stuck automatic reset ultra-thin elevator lock according to claim 1, characterized in that: The side wall of the locking column (4) is a rectangular structure, the cross section of the locking column (4) is a polygonal structure, and a plurality of evenly distributed long rollers (33) are provided on the circumference of the locking column (4), and the long rollers (33) are all in contact with the inner wall of the locking ring (3).

4. The anti-stuck automatic reset ultra-thin elevator lock according to claim 1, characterized in that: Baffles (34) are fixedly installed around the sides of the two locking plates (16) that are close to each other. The length of the baffles (34) is set to the distance between the locking ring (3) and the locking plate (16). A movable baffle (35) is fixedly installed on the top of the locking plate (16). A fixed baffle (36) corresponding to the position of the movable baffle (35) is fixedly installed on one side of the fixed lock plate (1). The two fixed baffles (36) are located between the two movable baffles (35). The two movable baffles (35) are symmetrically distributed on both sides of the locking column (4).

5. The anti-stuck automatic reset ultra-thin elevator lock according to claim 2, characterized in that: Limiting rails (25) are fixedly installed on both sides of the fixed load box (17), and the bottom ends of the two limiting rails (25) are symmetrically distributed on both sides of the movable load box (18). A fourth slider (26) is slidably installed inside the limiting rails (25), and the ends of the two fourth sliders (26) close to each other are fixedly installed on both sides of the movable load box (18). Magnetic plates (27) with corresponding positions are fixedly installed inside the limiting rails (25) and on the tops of the fourth sliders (26), and the spacing between the magnetic plates (27) on both sides of the top and bottom is set to the length of the locking column (4).

6. The anti-stuck automatic reset ultra-thin elevator lock according to claim 2, characterized in that: The bottom of the fixed load box (17) and the top of the movable load box (18) are both arranged in an arc shape. Round rods are fixedly mounted on both sides of one end of the central fixed rod (6) located inside the fixed load box (17). An arc-shaped baffle (28) adapted to the bottom of the fixed load box (17) is fixedly mounted on both ends of the two round rods that are away from each other. The position of the arc-shaped baffle (28) corresponds to the position of the leakage pipe (19) fixedly connected to the fixed load box (17).

7. The anti-stuck automatic reset ultra-thin elevator lock according to claim 2, characterized in that: A plurality of evenly distributed threaded rods (29) are fixedly mounted on the circumferential side of the bottom of the load block (20), one end of each threaded rod (29) is screwed with a threaded sleeve (30), the bottom end of each threaded sleeve (30) is provided with a rotating hole, a ball (31) having an outer diameter larger than the inner diameter of the rotating hole is provided in the rotating hole, an isolation rod (32) is fixedly mounted on one end of the threaded rod (29) close to the ball (31), and the end of the isolation rod (32) close to the ball (31) is set in an arc shape.

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