Elevator detecting and braking device

Abstract

The utility model relates to the technical field of detecting and braking devices, and provides an elevator detecting and braking device which comprises a supporting frame, a first fixing block is fixedly connected to the supporting frame, a second fixing block is fixedly connected to the first fixing block, a motor is fixedly connected to the second fixing block, a gear is fixedly connected to the output end of the motor, and the gear is fixedly connected to the output end of the motor. The gear is connected with a rack in a meshed mode, the rack is fixedly connected with a first connecting rod, the first connecting rod is connected with a third fixing block in a sliding mode, and the third fixing block is fixedly connected to the first fixing block. When power is cut off, the electromagnet loses power, the clamping block moves to clamp the ratchet wheel block, the guide wheel stops rotating, the motor loses power, under the acting force of the first spring, the second sliding rod moves to drive the third connecting rod to rotate, the third connecting rod rotates to drive the friction plate to move, the friction plate rubs the steel wire rope to enable the elevator box to be decelerated, and the elevator is decelerated when power is cut off. The braking effect of the elevator is guaranteed, and the safety of people in the elevator is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of detection brake devices, in particular to a detection brake device for a lifting elevator. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building, with its car running on at least two rows of rigid rails that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. There are also stepped types, with treads mounted on tracks and running continuously, commonly known as escalators or moving walkways, which are fixed lifting equipment that serve specified floors. A vertical elevator has a car that runs between at least two rows of rigid guide rails that are perpendicular or have an inclination angle of less than 15°. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods. It is customary to use elevators as a general term for vertical transportation vehicles in buildings, regardless of their driving mode.

[0003] The brake is an important component to ensure the safe and normal operation of the elevator. The existing elevator detection and braking device will fail during a power outage, affecting the braking effect of the elevator and seriously endangering the lives of people in the elevator. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a detection brake device for a lifting elevator.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lifting elevator detection brake device comprises a support frame, a fixed block 1 is fixedly connected to the support frame, a fixed block 2 is fixedly connected to the fixed block 1, a motor is fixedly connected to the fixed block 2, an output end of the motor is fixedly connected to a gear, the gear is meshingly connected to a rack, the rack is fixedly connected to a connecting rod 1, the connecting rod 1 is slidably connected to a fixed block 3, the fixed block 3 is fixedly connected to the fixed block 1, one end of the connecting rod 1 is fixedly connected to a sliding rod 1, the fixed block 1 is fixedly connected to a connecting rod 2, the connecting rod 2 is hinged to a connecting rod 3, a sliding groove is provided on the connecting rod 3, the sliding rod 1 is slidably connected to the sliding groove, the connecting rod 3 is hinged to a sliding rod 2, one end of the sliding rod 2 away from the connecting rod 3 is fixedly connected to a limited block, the fixed block 1 is fixedly connected to a fixed frame, the fixed frame is fixedly connected to a spring 1, one end of the spring 1 away from the fixed frame is fixedly connected to the limit block, and one end of the connecting rod 3 is fixedly connected to a friction plate.

[0006] As a further description of the above technical solution:

[0007] One end of the fixed block one is rotatably connected to a guide wheel, the guide wheel is provided with a ratchet block, the guide wheel is provided with a disc, the disc is provided with an electromagnet, the disc is fixedly connected to a spring two, one end of the spring two is fixedly connected to a clamping block, and the clamping block is slidably connected to the disc.

[0008] As a further description of the above technical solution:

[0009] The support frame is provided with a fixed pulley, the support frame is fixedly connected with a slide rail, the slide rail is slidably connected with an elevator box, one end of the elevator box is fixedly connected with a steel wire rope, the steel wire rope passes through the fixed pulley and the guide wheel, and one end of the steel wire rope is fixedly connected to the elevator box.

[0010] As a further description of the above technical solution:

[0011] The elevator box is rotatably connected with a rotating wheel, and two groups of rotating wheels are provided. One side of the two groups of rotating wheels is in contact with the slide rail, and a rotation speed detector is provided on the elevator box.

[0012] As a further description of the above technical solution:

[0013] The rotation speed detector detects the rotation speeds of the two groups of rotating wheels, the rotation speed detector is electrically connected to the electromagnet, and the rotation speed detector is electrically connected to the motor.

[0014] As a further description of the above technical solution:

[0015] The friction plate is directly above the guide wheel.

[0016] As a further description of the above technical solution:

[0017] The spring and the clamping blocks are provided with two groups, and the two groups of the clamping blocks are distributed on both sides of the disc.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, when power is cut off, the electromagnet loses power, the card block moves and blocks the ratchet block, so that the guide wheel stops rotating, and the motor loses power. Under the action of spring 1, spring 1 pushes the limit block to move, and the movement of the limit block drives the movement of the slide bar 2, and the movement of the slide bar 2 drives the connecting rod 3 to rotate, and the rotation of the connecting rod 3 drives the friction plate to move, and the friction plate rubs the wire rope to decelerate the elevator box, so that the power outage can decelerate the elevator, ensure the braking effect of the elevator, and protect the safety of the people in the elevator.

[0020] 2. In the utility model, when the speed detector detects that the speed of any one of the two sets of wheels exceeds the rated value, the electromagnet is powered off, and under the action of the second spring, the card block pops out, the card block jams the ratchet block, the ratchet block stops rotating, and at the same time the motor reverses, the friction plate moves downward, the friction plate rubs against the wire rope in the guide wheel, slows down the wire rope, thereby achieving deceleration of the elevator car and protecting the safety of people in the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a lift detection brake device proposed by the utility model;

[0022] Figure 2 A schematic diagram of the partial structure of a lift brake detection device proposed by the utility model Figure 1 ;

[0023] Figure 3 A schematic diagram of the partial structure of a lift brake detection device proposed by the utility model Figure 2 ;

[0024] Figure 4 A schematic diagram of the partial structure of a lift brake detection device proposed by the utility model Figure 3 ;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Support frame; 2. Fixed block 1; 3. Fixed block 2; 4. Motor; 5. Gear; 6. Rack; 7. Connecting rod 1; 8. Fixed block 3; 9. Slide bar 1; 10. Connecting rod 2; 11. Connecting rod 3; 12. Slide groove; 13. Slide bar 2; 14. Limit block; 15. Fixed frame; 16. Spring 1; 17. Friction plate; 18. Guide wheel; 19. Ratchet block; 20. Disc; 21. Electromagnet; 22. Spring 2; 23. Block; 24. Fixed pulley; 25. Slide rail; 26. Elevator box; 27. Wire rope; 28. Rotating wheel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 5, the utility model provides an embodiment: a lifting elevator detection brake device, including a support frame 1, a fixed block 2 is fixedly connected to the support frame 1, a fixed block 2 is fixedly connected to the fixed block 2, a fixed block 2 3 is fixedly connected to the fixed block 2 3, a motor 4 is fixedly connected to the output end of the motor 4, a gear 5 is fixedly connected to the gear 5, a rack 6 is meshedly connected to the rack 6, a connecting rod 1 7 is fixedly connected to the connecting rod 1 7, a fixed block 3 8 is slidably connected to the connecting rod 1 7, the fixed block 3 8 is fixedly connected to the fixed block 2, one end of the connecting rod 1 7 is fixedly connected to a sliding rod 1 9, a connecting rod 2 10 is fixedly connected to the fixed block 2, the connecting rod 2 10 is hinged to a connecting rod 3 11, a sliding groove 12 is provided on the connecting rod 3 11, the sliding rod 1 9 is slidably connected to the sliding groove 12, the connecting rod 3 11 is hinged to a sliding rod 2 13, and one end of the sliding rod 2 13 away from the connecting rod 3 11 is fixed A limit block 14 is fixedly connected, a fixed frame 15 is fixedly connected to the fixed block 2, and a spring 16 is fixedly connected to the fixed frame 15. One end of the spring 16 away from the fixed frame 15 is fixedly connected to the limit block 14, and one end of the connecting rod 3 11 is fixedly connected to the friction plate 17. When the power fails, the electromagnet 21 loses power, the clamping block 23 moves to clamp the ratchet block 19, so that the guide wheel 18 stops rotating, and the motor 4 loses power. Under the action of the spring 16, the spring 16 pushes the limit block 14 to move, and the movement of the limit block 14 drives the sliding bar 2 13 to move, and the movement of the sliding bar 2 13 drives the connecting rod 3 11 to rotate, and the rotation of the connecting rod 3 11 drives the friction plate 17 to move, and the friction plate 17 rubs the wire rope 27 to decelerate the elevator car 26, so that the power failure decelerates the elevator, ensures the braking effect of the elevator, and protects the safety of the people in the elevator.

[0030] One end of the fixed block 1 2 is rotatably connected to a guide wheel 18, a ratchet block 19 is provided on the guide wheel 18, a disc 20 is provided on the guide wheel 18, an electromagnet 21 is provided on the disc 20, a spring 22 is fixedly connected to the disc 20, one end of the spring 22 is fixedly connected to a clamping block 23, the clamping block 23 is slidably connected to the disc 20, a fixed pulley 24 is provided on the support frame 1, a slide rail 25 is fixedly connected to the support frame 1, an elevator box 26 is slidably connected to the slide rail 25, one end of the elevator box 26 is fixedly connected to a wire rope 27, the wire rope 27 passes through the fixed pulley 24 and the guide wheel 18, one end of the wire rope 27 is fixedly connected to the elevator box 26, and a rotating wheel 28 is rotatably connected to the elevator box 26, and the rotating wheel 28 is provided with two groups, one side of the two groups of rotating wheels 28 is attached to the slide rail 25, and the elevator box 2 6 is provided with a speed detector, which detects the speed of the two groups of wheels 28. The speed detector is electrically connected to the electromagnet 21, and the speed detector is electrically connected to the motor 4. The friction plate 17 is directly above the guide wheel 18. The spring 22 and the block 23 are provided with two groups. The two groups of blocks 23 are distributed on both sides of the disc 20. When the speed detector detects that the speed of any group of the two groups of wheels 28 exceeds the rated value, the electromagnet 21 is powered off. Under the action of the spring 22, the block 23 pops out, and the block 23 clamps the ratchet block 19, and the ratchet block 19 stops rotating. At the same time, the motor 4 reverses, and the friction plate 17 moves downward. The friction plate 17 rubs the wire rope 27 in the guide wheel 18 to decelerate the wire rope 27, thereby achieving deceleration of the elevator box 26 and protecting the safety of the people in the elevator.

[0031] Working principle: When the elevator is operating normally, the electromagnet 21 is energized, the electromagnet 21 attracts the card block 23, the output end of the motor 4 rotates to drive the gear 5 to rotate, the gear 5 rotates to drive the rack 6 to move, the rack 6 moves to drive the connecting rod 7 to move, the connecting rod 7 moves to drive the slide bar 9 to move, the slide bar 9 moves to drive the connecting rod 3 11 to rotate, the connecting rod 3 11 rotates to drive the friction plate 17 to move, at this time, the friction plate 17 is away from the guide wheel 18, and the friction plate 17 does not contact the wire rope 27 in the guide wheel 18. When the speed detector detects that the speed of any one of the two sets of wheels 28 exceeds the rated value, the electromagnet 21 is de-energized, and under the action of the spring 22, the card block 23 pops out, and the card block 23 clamps the ratchet block 19, and the ratchet block 19 stops rotating. The motor 4 reverses, and the friction plate 17 moves downward. The friction plate 17 rubs against the steel wire rope 27 in the guide wheel 18, decelerating the steel wire rope 27, thereby decelerating the elevator box 26. In extreme cases, such as power outages, the electromagnet 21 also loses power, and the clamping block 23 moves to clamp the ratchet block 19, so that the guide wheel 18 stops rotating. The motor 4 loses power. Under the action of the spring 16, the spring 16 pushes the limit block 14 to move, and the movement of the limit block 14 drives the slide bar 2 13 to move. The movement of the slide bar 2 13 drives the connecting rod 3 11 to rotate. The rotation of the connecting rod 3 11 drives the friction plate 17 to move. The friction plate 17 rubs against the steel wire rope 27 to decelerate the elevator box 26, and the power outage decelerates the elevator, thereby ensuring the braking effect of the elevator and protecting the safety of the people in the elevator.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection brake device for an elevator, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected with a fixing block 1 (2), the fixing block 1 (2) is fixedly connected with a fixing block 2 (3), the fixing block 2 (3) is fixedly connected with a motor (4), the output end of the motor (4) is fixedly connected with a gear (5), the gear (5) is meshingly connected with a rack (6), the rack (6) is fixedly connected with a connecting rod 1 (7), the connecting rod 1 (7) is slidably connected with a fixing block 3 (8), the fixing block 3 (8) is fixedly connected to the fixing block 1 (2), one end of the connecting rod 1 (7) is fixedly connected with a sliding rod 1 (9), the fixing block 1 (2) is fixedly connected with a connecting rod 2 (10), the connecting rod The connecting rod 2 (10) is hingedly connected to the connecting rod 3 (11), the connecting rod 3 (11) is provided with a slide groove (12), the slide rod 1 (9) is slidably connected to the slide groove (12), the connecting rod 3 (11) is hingedly connected to the slide rod 2 (13), the end of the slide rod 2 (13) away from the connecting rod 3 (11) is fixedly connected to the limiting block (14), the fixed block 1 (2) is fixedly connected to a fixing frame (15), the fixing frame (15) is fixedly connected to a spring 1 (16), the end of the spring 1 (16) away from the fixing frame (15) is fixedly connected to the limiting block (14), and one end of the connecting rod 3 (11) is fixedly connected to a friction plate (17).

2. The elevator detection brake device according to claim 1, characterized in that: One end of the fixed block 1 (2) is rotatably connected to a guide wheel (18), a ratchet block (19) is provided on the guide wheel (18), a disc (20) is provided on the guide wheel (18), an electromagnet (21) is provided on the disc (20), the disc (20) is fixedly connected to a spring 2 (22), one end of the spring 2 (22) is fixedly connected to a clamping block (23), and the clamping block (23) is slidably connected to the disc (20).

3. The elevator detection brake device according to claim 1, characterized in that: The support frame (1) is provided with a fixed pulley (24), the support frame (1) is fixedly connected with a slide rail (25), the slide rail (25) is slidably connected with an elevator box (26), one end of the elevator box (26) is fixedly connected with a steel wire rope (27), the steel wire rope (27) passes through the fixed pulley (24) and the guide wheel (18), and one end of the steel wire rope (27) is fixedly connected to the elevator box (26).

4. The elevator detection brake device according to claim 3, characterized in that: The elevator box (26) is rotatably connected with a rotating wheel (28), and two groups of rotating wheels (28) are provided. One side of the two groups of rotating wheels (28) is in contact with the slide rail (25), and a rotation speed detector is provided on the elevator box (26).

5. The elevator detection brake device according to claim 2, characterized in that: The electromagnet (21) is electrically connected to a rotation speed detector, and the motor (4) is electrically connected to the rotation speed detector.

6. The elevator detection brake device according to claim 1, characterized in that: The friction plate (17) is located directly above the guide wheel (18).

7. The elevator detection brake device according to claim 2, characterized in that: The second spring (22) and the clamping block (23) are provided in two groups, and the two groups of the clamping blocks (23) are distributed on both sides of the disc (20).

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