An elevator box emergency protection device

Abstract

The present invention provides an elevator box emergency protection device, comprising a frame, a box movably installed inside the frame, guard plates fixedly installed on both sides of the interior of the frame, and an elastic seat fixedly connected to the bottom of the frame. The elevator box emergency protection device provided by the present invention can, when the elevator is rapidly descending and the locking structure cannot keep up due to the change in speed, the airbag is timely opened, and the position of the elevator can be quickly decelerated during the emergency stop of the elevator, so that the space on both sides of the elevator is reduced to ensure the descent of the elevator, and the cross spring pieces at the bottom are used to provide a certain edge support for the descending bottom of the elevator box, and the bottom of the elevator can be engaged with the edge, so that when the elevator descends to the pit, the two sides of the linkage structure will not rise due to the impact of excessive contact, and the tooth structure on the support plate is connected with the tooth structure of the base, so that the bottom of the elevator box can be locked when it descends, and the contact of the elevator box during the descent process is stable.

Description

Technical Field

[0001] The present invention relates to the field of elevators, in particular to an elevator box emergency protection device. Background Art

[0002] In order to ensure the safety of elevator operation, a variety of mechanical and electrical safety devices are equipped in the design and production of elevator systems to prevent possible dangerous accidents of elevators. The emergency protection of the box body is mainly composed of an emergency stop safety protection device consisting of maintenance operation, fire protection function and emergency stop device. After the emergency stop device is activated, the elevator will stop immediately even if it is running. It is mainly set in the pit, between pulleys, near the top of the car and the pit. When the elevator is running, due to the emergency stop process, the elevator has a short emergency stop time and a fast deceleration process, which causes shaking and collision with the pit, which can easily cause the elevator to be worn and damaged.

[0003] In response to the technical problems existing in the above-mentioned elevator box emergency protection device, a search revealed that there is a patent number CN201911095853.7, an elevator emergency protection device, comprising a working box and a working cavity in the working box, a slide rail fixedly provided on the bottom wall of the working cavity, a first slide groove opening to the right provided in the slide rail, a brake cavity communicating with the first slide groove provided in the slide rail, the brake cavity opening to the left, an elevator box slidingly provided in the first slide groove, an elevator cavity provided in the elevator box, a sensor box fixedly provided on the lower end surface of the elevator box, and a sensor box provided in the sensor box. A sensing chamber is provided, in which a sliding plate is provided for sliding. The present invention is a protective device designed for emergency falling of elevators. When the elevator loses control and accelerates to fall, the pawl will be stuck in the ratchet groove, so that the ratchet can only rotate in one direction, thereby slowing down the descent speed of the elevator car. The present invention also pops out a brake plate from the side of the elevator shaft, and the friction force generated by contact with the elevator car is used to emergency brake the elevator car, slowing down the falling speed. An airbag and a mechanical brake device are also provided at the bottom of the elevator shaft to provide a relatively stable braking force to the elevator car, thereby protecting the passengers in the elevator car from danger when the elevator car is emergency braked.

[0004] However, the emergency protection device for the box body is prone to interference with the moving action of the box body during the descent due to the emergency braking of the box body, which can easily cause friction with the contact structure, resulting in collision damage to the box body and severe wear and tear on the braking structure of the elevator. At the same time, because the emergency stop device is set in the pit, the braking force increases during the descent of the elevator, which can easily cause the bottom of the box body to be unstable when the elevator stops, and the box body is prone to shaking and instability. Summary of the Invention

[0005] The purpose of the present invention is to provide an elevator box emergency protection device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an elevator box emergency protection device, comprising a frame, a box movably installed inside the frame, guard plates fixedly installed on both sides of the frame, and an elastic seat fixedly connected to the bottom of the frame.

[0007] As a further solution of the present invention: electromagnetic blocks are fixedly connected to both sides of the box body, connectors are fixedly connected to both sides of the bottom of the box body, and a base is fixedly connected to the bottom of the box body.

[0008] As a further solution of the present invention: the box is located between two guard plates, four electromagnetic blocks are provided, and the four electromagnetic blocks are distributed in the upper and lower positions on both sides of the box, a through hole is provided inside the connecting head, and concave teeth are provided at the bottom of the base.

[0009] As a further solution of the present invention: the interior of the guard plate is fixedly connected to a protection track, the interior and upper part of the guard plate are fixedly connected to a sliding wheel, the outer surface of the protection track is movably connected to three sliding parts, both sides of the sliding parts are fixedly connected to clamping blocks, one side of the clamping block is fixedly connected to a stabilizing block, the top of one of the sliding parts is fixedly connected to a pull rope, one side of two of the sliding parts is fixedly connected to a magnetic block, the bottom of one of the clamping blocks is fixedly connected to a mounting seat, the bottom of the mounting seat is fixedly installed with an inflator, the outer surface of the inflator is fixedly connected to a connecting rope, one end of the connecting rope is fixedly connected to a fixed head, the air outlet end of the inflator is fixedly connected to an air outlet pipe, and one end of the air outlet pipe is fixedly connected to an airbag.

[0010] As a further solution of the present invention: the three sliding members are located on the protection track at the top, middle and bottom ends, and the three sliding members are connected by a pull rope, one end of which passes through the top of the sliding wheel.

[0011] As a further solution of the present invention: the positions of the magnetic block and the electromagnetic block correspond to each other, the magnetic block and the electromagnetic block are magnetically attracted to each other, and the sliding member is arranged to follow the movement of the box.

[0012] As a further solution of the present invention: the top end of the fixed head is raised, the inflator is connected to the connecting head via a connecting rope, the fixed head and the connecting head are detachable, and a sensor is installed inside the fixed head.

[0013] As a further solution of the present invention: the airbag, the air outlet pipe and the air outlet end of the inflator are connected, and the airbag is made of a composite cloth material.

[0014] As a further solution of the present invention: the top of the elastic seat is movably connected to a clamping seat, the inside of the elastic seat is fixedly connected to a main spring, the top of the clamping seat is fixedly connected to a trigger rod, both sides of the clamping seat are movably connected to clamping members, the bottom of the clamping member is fixedly connected to a secondary spring, the top of the clamping member is movably connected to a trigger rod, the top of the trigger rod is movably connected to a movable frame, the inside of the movable frame is fixedly connected to a return spring seat, and the inside of the return spring seat is movably connected to a support plate.

[0015] As a further solution of the present invention: the interior of the elastic seat is hollow, the clamping seat is arranged to move up and down inside the elastic seat, the bottom of the clamping seat presses the top of the main spring, and the middle of the clamping seat is concave inward.

[0016] As a further solution of the present invention: the upper and lower ends of one end of the clamping member are recessed in the middle, and the clamping member is embedded in both sides of the clamping seat.

[0017] As a further solution of the present invention: the clamping member, the trigger rod and the movable frame are all connected via a rotating shaft, and one end of the clamping member and the movable frame is tilted downward. Beneficial effects

[0018] 1. The present invention provides an elevator car emergency protection device. When the elevator is rapidly descending and the locking structure cannot keep up due to the change in speed, the airbag is promptly deployed. During the emergency stop of the elevator, the position of the elevator can be quickly decelerated, the space on both sides of the elevator is reduced, and the descent of the elevator is stable. At the same time, the cross spring pieces at the bottom provide a certain edge support for the descending bottom of the elevator car. The bottom of the elevator can be engaged with the edge, so that the elevator will not be impacted by excessive contact when descending to the pit.

[0019] 2. The present invention provides an emergency protection device for an elevator box. The positions of the magnetic block and the electromagnetic block correspond to each other, the magnetic block and the electromagnetic block are magnetically attracted to each other, the sliding part follows the movement of the box, the top of the fixed head is raised, the inflator is connected to the connecting head by a connecting rope, the fixed head and the connecting head are detachable, a sensor is installed inside the fixed head, the airbag, the air outlet pipe and the air outlet end of the inflator are connected, the airbag is made of composite cloth material, and can react at the time of separation when the elevator is descending, and a pressure-resistant airbag appears. As the space of the airbag increases, the speed of the elevator box decreases, thereby protecting the braking pressure of the elevator and the space around the elevator, making the descent of the elevator stable.

[0020] 3. The present invention provides an elevator car emergency protection device, which is arranged by a clamping seat that moves up and down inside an elastic seat. The bottom of the clamping seat squeezes the top of the main spring, and the middle of the clamping seat is recessed inward. The clamping member, the trigger rod and the movable frame are all connected by a rotating shaft. One end of the clamping member and the movable frame is tilted downward. With the linkage structure of the clamping seat, the elastic seat can be squeezed before the elevator car contacts the pit, causing the two sides of the linkage structure to rise. The tooth structure on the support plate is connected with the tooth structure of the base, so that the bottom of the elevator car can be locked when it descends, and the contact of the elevator car during the descent process is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structure diagram of the elevator of the present invention.

[0022] Figure 2 It is the overall structural diagram of the box of the present invention.

[0023] Figure 3 It is the overall structural diagram of the guard plate of the present invention.

[0024] Figure 4 This is a structural diagram of the guard plate of the present invention.

[0025] Figure 5 This is a structural diagram of the top of the guard plate of the present invention.

[0026] Figure 6 This is the overall structural diagram of the mounting base of the present invention.

[0027] Figure 7 This is a structural diagram of the entire inner side of the mounting base of the present invention.

[0028] Figure 8 This is the overall structural diagram of the elastic seat of the present invention.

[0029] Figure 9 It is a structural diagram of the card of the present invention.

[0030] Figure 10 This is a structural diagram of the support plate of the present invention.

[0031] Figure 1-10Middle: 1. Frame; 101. Upper running assembly; 102. Lower running assembly; 103. Running track; 2. Box; 201. Electromagnetic block; 202. Base; 203. Connector; 3. Guard plate; 301. Protective track; 302. Slider; 303. Stabilizing block; 304. Clamp; 305. Sliding wheel; 306. Pull rope; 307. Magnetic block; 308. Mounting seat; 309. Inflator; 310. Connecting rope; 311. Fixed head; 312. Exhaust pipe; 313. Airbag; 4. Elastic seat; 401. Clamp; 402. Trigger rod; 403. Main spring; 404. Auxiliary spring; 405. Clamp; 406. Trigger rod; 407. Movable frame; 408. Return spring seat; 409. Support plate. Implementation Method

[0032] See also Figure 1-10 In the embodiment of the present invention,

[0033] Example 1: An elevator box emergency protection device includes a frame 1, a box 2 is movably installed inside the frame 1, guard plates 3 are fixedly installed on both sides of the inside of the frame 1, and an elastic seat 4 is fixedly connected to the bottom of the frame 1.

[0034] Electromagnetic blocks 201 are fixedly connected to both sides of the box body 2, connectors 203 are fixedly connected to both sides of the bottom of the box body 2, and a base 202 is fixedly connected to the bottom of the box body 2;

[0035] The box body 2 is located between the two guard plates 3. Four electromagnetic blocks 201 are provided. The four electromagnetic blocks 201 are distributed at the upper and lower positions on both sides of the box body 2. A through hole is provided inside the connector 203. The bottom of the base 202 is provided with concave teeth.

[0036] See also Figure 2-7

[0037] Example 2: The difference between Example 2 and Example 1 is that baffles are provided at the top and bottom ends of the guard plate 3.

[0038] The interior of the guard plate 3 is fixedly connected to a protection track 301, the interior upper portion of the guard plate 3 is fixedly connected to a sliding wheel 305, the outer surface of the protection track 301 is movably connected to three sliding members 302, both sides of the sliding members 302 are fixedly connected to clamping blocks 304, one side of the clamping block 304 is fixedly connected to a stabilizing block 303, the top of one sliding member 302 is fixedly connected to a pull rope 306, one side of the two sliding members 302 are fixedly connected to a magnetic block 307, the bottom of one of the clamping blocks 304 is fixedly connected to a mounting seat 308, an inflator 309 is fixedly installed on the bottom of the mounting seat 308, the outer surface of the inflator 309 is fixedly connected to a connecting rope 310, one end of the connecting rope 310 is fixedly connected to a fixed head 311, the air outlet end of the inflator 309 is fixedly connected to an air outlet pipe 312, and one end of the air outlet pipe 312 is fixedly connected to an air bag 313;

[0039] The three sliding members 302 are located at the top, middle and bottom ends of the protection track 301. The three sliding members 302 are connected by a pull rope 306. One end of the pull rope 306 passes over the top of the sliding wheel 305.

[0040] The position of the magnetic block 307 corresponds to that of the electromagnetic block 201 , the magnetic block 307 and the electromagnetic block 201 are magnetically attracted to each other, and the sliding member 302 follows the movement of the box body 2 ;

[0041] The top of the fixed head 311 is raised, and the inflator 309 is connected to the connecting head 203 via a connecting rope 310. The fixed head 311 and the connecting head 203 are detachable. A sensor is installed inside the fixed head 311.

[0042] The air bag 313, the air outlet pipe 312 and the air outlet end of the inflator 309 are connected, and the air bag 313 is made of composite cloth material;

[0043] When the box 2 moves, the magnetic block 307 follows the movement of the electromagnetic block 201, causing the sliding member 302 to move quickly on the protective track 301. When the box 2 passes through the emergency stop activity, the speed of the box 2 is accelerated, causing the magnetism of the electromagnetic block 201 to be disconnected from the magnetism of the magnetic block 307, and the fixed head 311 on the connecting rope 310 to fall off from the connecting head 203. After the sensor senses it, the inflator 309 is turned on, and the inflator 309 discharges a large amount of gas from the outlet pipe 312 to the airbag 313, causing the airbag 313 to quickly fill both sides of the box 2, and the box 2 is squeezed by the airbag to slow down.

[0044] See also Figure 8-10

[0045] Example 3: The difference between Example 3 and Example 1 is that the elastic seat 4 is located directly below the box body 2:

[0046] The top of the elastic base 4 is movably connected to a clamping base 401, to which a main spring 403 is fixedly connected inside the elastic base 4, a trigger rod 402 is fixedly connected to the top of the clamping base 401, clamping members 405 are movably connected on both sides of the clamping base 401, a secondary spring 404 is fixedly connected to the bottom of the clamping member 405, a trigger rod 406 is movably connected to the top of the clamping member 405, a movable frame 407 is movably connected to the top of the trigger rod 406, a return spring seat 408 is fixedly connected inside the movable frame 407, and a support plate 409 is movably connected inside the return spring seat 408;

[0047] The interior of the elastic seat 4 is hollow, and the clamping seat 401 is arranged to move up and down inside the elastic seat 4. The bottom of the clamping seat 401 presses the top of the main spring 403, and the middle of the clamping seat 401 is concave inward;

[0048] One end of the clamping member 405 is concave in the middle at the top and bottom, and the clamping member 405 is embedded in both sides of the clamping seat 401;

[0049] The clamping member 405, the trigger rod 406 and the movable frame 407 are all connected by a rotating shaft, and one end of the clamping member 405 and the movable frame 407 is tilted downward;

[0050] When the box body 2 falls, the bottom of the box body 2 first squeezes the trigger rod 402, causing the base 401 to move downward, changing the angle of the clamp 405, and tilting one end of the clamp 405 to make the movable frame 407 parallel to the base 202, so that the support plate 409 crosses the base 202, supporting the bottom of the box body 2 and cushioning the box body 2.

[0051] See also Figure 1-2 ,

[0052] Example 4: The difference between Example 3 and Example 2 is that the frame 1 is connected to the top and bottom of the guard plate 3 by welding.

[0053] The upper portion of the frame 1 is movably connected to a running assembly 101, the bottom of the running assembly 101 is fixedly connected to a lower running assembly 102, and both sides of the frame 1 are fixedly connected to running tracks 103;

[0054] The upper running assembly 101 and the lower running assembly 102 are installed above and below the box body 2 , and the box body 2 is moved from top to bottom on the running track 103 .

[0055] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An elevator box emergency protection device, characterized in that , including framework (1): A box body (2) is movably installed inside the frame (1), guard plates (3) are fixedly installed on both sides of the interior of the frame (1), and an elastic seat (4) is fixedly connected to the bottom of the frame (1); The box (2) is located between two guard plates (3), and the box (2) includes: Electromagnetic block (201), base (202) and connector (203); Electromagnetic blocks (201) are fixedly connected to both sides of the box (2), connectors (203) are fixedly connected to both sides of the bottom of the box (2), and a base (202) is fixedly connected to the bottom of the box (2); Four electromagnetic blocks (201) are provided, and the four electromagnetic blocks (201) are distributed at upper and lower positions on both sides of the box body (2); a through hole is provided inside the connector (203); and concave teeth are provided at the bottom of the base (202); Baffles are provided at the top and bottom ends of the guard plate (3), and the guard plate (3) comprises: A protective track (301), a sliding member (302), a stabilizing block (303), a clamping block (304), a sliding wheel (305), a pull rope (306), a magnetic block (307), a mounting base (308), an inflator (309), a connecting rope (310), a fixing head (311), an air outlet pipe (312), and an air bag (313); The interior of the guard plate (3) is fixedly connected to a protection track (301), the interior upper portion of the guard plate (3) is fixedly connected to a sliding wheel (305), the outer surface of the protection track (301) is movably connected to three sliding members (302), both sides of the sliding members (302) are fixedly connected to clamping blocks (304), one side of the clamping block (304) is fixedly connected to a stabilizing block (303), the top of one of the sliding members (302) is fixedly connected to a pull rope (306), and one side of two of the sliding members (302) is fixedly connected to the pull rope (306). A magnetic block (307) is fixedly connected, the bottom of one of the clamping blocks (304) is fixedly connected to a mounting seat (308), an inflator (309) is fixedly mounted on the bottom of the mounting seat (308), a connecting rope (310) is fixedly connected to the outer surface of the inflator (309), one end of the connecting rope (310) is fixedly connected to a fixed head (311), an air outlet end of the inflator (309) is fixedly connected to an air outlet pipe (312), and one end of the air outlet pipe (312) is fixedly connected to an air bag (313); The three sliding members (302) are located at the top, middle and bottom ends of the protection track (301), and the three sliding members (302) are connected by a pull rope (306), and one end of the pull rope (306) passes through the top of the sliding wheel (305); The magnetic block (307) corresponds to the position of the electromagnetic block (201), the magnetic block (307) and the electromagnetic block (201) are magnetically attracted to each other, and the sliding member (302) follows the movement of the box (2); The top end of the fixed head (311) is raised, the inflator (309) is connected to the connector (203) via a connecting rope (310), the fixed head (311) and the connector (203) are detachable, and a sensor is installed inside the fixed head (311); The air bag (313), the air outlet pipe (312) and the air outlet end of the inflator (309) are connected, and the air bag (313) is made of a composite cloth material.

2. An elevator car body emergency protection device according to claim 1, characterized in that: The elastic seat (4) is located directly below the box body (2), and the elastic seat (4) includes: A card seat (401), a trigger rod (402), a main spring (403), a secondary spring (404), a card member (405), a trigger rod (406), a movable frame (407), a return spring seat (408) and a support plate (409); The top of the elastic seat (4) is movably connected to a clamping seat (401), the interior of the elastic seat (4) is fixedly connected to a main spring (403), the top of the clamping seat (401) is fixedly connected to a trigger rod (402), both sides of the clamping seat (401) are movably connected to clamping members (405), the bottom of the clamping member (405) is fixedly connected to a secondary spring (404), the top of the clamping member (405) is movably connected to a trigger rod (406), the top of the trigger rod (406) is movably connected to a movable frame (407), the interior of the movable frame (407) is fixedly connected to a return spring seat (408), and the interior of the return spring seat (408) is movably connected to a support plate (409).

3. An elevator car body emergency protection device according to claim 2, characterized in that: The interior of the elastic seat (4) is hollow, and the clamping seat (401) is arranged to move up and down inside the elastic seat (4). The bottom of the clamping seat (401) presses the top of the main spring (403), and the middle of the clamping seat (401) is concave inward.

4. An elevator car body emergency protection device according to claim 2, characterized in that: One end of the clamping member (405) is recessed in the middle at the top and bottom, and the clamping member (405) is embedded in both sides of the clamping seat (401); The clamping member (405), the trigger rod (406) and the movable frame (407) are all connected via a rotating shaft, and one end of the clamping member (405) and the movable frame (407) is tilted downward.

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