Elevator suspension device

Abstract

The utility model discloses an elevator suspension device which comprises an elevator shaft, a suspension motor is installed on the inner side of the upper end of the elevator shaft, the output end of the suspension motor is connected with an upper guide wheel, the outer side of the upper guide wheel is sleeved with a suspension belt, one end of the suspension belt is connected with the upper side of a lift car, and the other end of the suspension belt is connected with the lower side of the lift car. The other end of the suspension belt is connected with the lower side of the lift car; an adjusting motor is installed on the inner side of the elevator shaft, and the output end of the adjusting motor is connected with a lead screw. According to the elevator suspension device, when an elevator has a falling fault, an electromagnet a and an electromagnet b which are distributed in a homopolar mode can be powered on to repel each other, a brake stopping rod is driven to drive a brake stopping wheel to move, the brake stopping wheel is gradually clamped into a positioning groove, the brake stopping wheel can cross the positioning groove to roll, and by means of hindering friction force between the brake stopping wheel and the positioning groove, the brake stopping wheel can stably move. And the descending of the lift car is gradually slowed down until the lift car is assisted to stop, so that the sudden stop of the lift car caused by direct locking is avoided, and the injury to passengers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator suspension, in particular to an elevator suspension device. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and is used to carry people or goods in multi-story buildings. One of the key components to ensure the safe operation of the elevator is the elevator's suspension device, which is mainly responsible for bearing the entire weight of the car and the counterweight.

[0003] However, the elevator suspension device is not conducive to assisting the elevator to perform buffering and braking when the elevator breaks down. Direct braking can easily cause injuries to passengers. It is not conducive to assisting the elevator to slow down and position itself in the elevator shaft, and the overall safety of the elevator cannot be improved. Moreover, after long-term use, the suspension mechanism of the suspension device is prone to loosening, which is not conducive to tightening and stabilizing the suspension of the elevator. Its flexibility of use is low. Therefore, we proposed an elevator suspension device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide an elevator suspension device to solve the problems raised by the above-mentioned background technology that in the current market, when an elevator fails, it is not conducive to assisting the elevator to perform buffering and braking, and direct braking may easily cause injuries to passengers, and it is not conducive to assisting the elevator to slow down and position itself in the elevator shaft, and the overall safety of the elevator cannot be improved. Moreover, after long-term use, the suspension mechanism of the suspension device is prone to loosening, which is not conducive to tightening and stabilizing the suspension of the elevator, and the flexibility of use is low.

[0005] To achieve the above object, the utility model provides the following technical solution: an elevator suspension device, comprising an elevator shaft, a suspension motor is installed on the inner side of the upper end of the elevator shaft, an upper guide wheel is connected to the output end of the suspension motor, a suspension belt is sleeved on the outer side of the upper guide wheel, one end of the suspension belt is connected to the upper side of the car, and the other end of the suspension belt is connected to the lower side of the car;

[0006] An adjusting motor is installed inside the elevator shaft, an output end of the adjusting motor is connected to a screw rod, an outer side of the screw rod is threadedly connected to a fixing seat, a left end of the fixing seat is rotatably connected to a tensioning wheel, a limiting rod is passed through the fixing seat, and one end of the limiting rod is connected to the elevator shaft;

[0007] A lower guide wheel is rotatably connected to the inner side of the lower end of the elevator shaft, a guide rail is installed on the inner wall of the elevator shaft, a guide block is slidably connected to the inner side of the guide rail, the guide block is installed on the outer side of the suspension belt, and a positioning groove is opened on the inner wall of the guide rail.

[0008] Preferably, an electromagnet a is installed on the inner wall of the guide block, and a brake stop rod is elastically connected to the inner side of the guide block via a spring, an electromagnet b is installed on one end of the brake stop rod, and the other end of the brake stop rod is rotatably connected to a brake stop wheel.

[0009] Preferably, the suspension belt is sequentially attached to the outer sides of the upper guide wheel, the tensioning wheel and the lower guide wheel, and the upper guide wheel, the tensioning wheel and the lower guide wheel are distributed in a triangle. This design can ensure the smooth movement of the suspension belt and prevent the suspension belt from loosening and falling.

[0010] Preferably, the fixing seat is slidably connected to the limiting rod, and the limiting rod and the screw rod are distributed parallel to each other. This design can use the limiting rod to limit the movement of the fixing seat to ensure that the fixing seat maintains horizontal movement.

[0011] Preferably, the guide block is an I-shaped structure, and there is a gap between the guide block and the car. This design can avoid friction between the car and the guide block and ensure their smooth movement.

[0012] Preferably, the position of the electromagnet a and the position of the electromagnet b are set in one-to-one correspondence, and the electromagnet a and the electromagnet b are magnets of the same polarity. This design utilizes the repulsive force between the magnets to drive the brake rod to move.

[0013] Preferably, the positioning grooves are evenly spaced on the inner wall of the guide rail, and the connections between two adjacent positioning grooves are smooth arc-shaped. This design allows the brake wheel to roll across the positioning grooves, avoiding direct jamming and causing an emergency stop of the car, thereby reducing damage to passengers.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When the elevator falls, the electromagnet a and the electromagnet b with the same poles can be powered on to make them repel each other, driving the brake rod to drive the brake wheel to move, gradually locking the brake wheel into the positioning groove, and the brake wheel can roll across the positioning groove. The friction between the brake wheel and the positioning groove is used to gradually slow down the descent of the car until the car is stopped, thereby avoiding the car from being stuck and causing an emergency stop, thereby reducing the harm to passengers.

[0016] (2) The elevator suspension device drives the screw rod to rotate, controls the fixed seat to drive the tensioning wheel to move, adjusts the tension of the suspension belt, prevents the suspension belt from loosening, and ensures that the suspension belt firmly suspends the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the guide block structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the suspension belt structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide block of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the guide rail of the utility model.

[0022] In the figure: 1. elevator shaft; 2. suspension motor; 3. upper guide wheel; 4. suspension belt; 5. car; 6. tensioning wheel; 7. fixed seat; 8. adjustment motor; 9. screw rod; 10. limit rod; 11. guide rail; 12. lower guide wheel; 13. guide block; 14. electromagnet a; 15. brake rod; 16. spring; 17. electromagnet b; 18. brake wheel; 19. positioning groove. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5 The utility model provides the following technical solutions: an elevator suspension device, including an elevator shaft 1, a suspension motor 2 is installed on the inner side of the upper end of the elevator shaft 1, an upper guide wheel 3 is connected to the output end of the suspension motor 2, a suspension belt 4 is sleeved on the outer side of the upper guide wheel 3, one end of the suspension belt 4 is connected to the upper side of the car 5, and the other end of the suspension belt 4 is connected to the lower side of the car 5; a lower guide wheel 12 is rotatably connected to the inner side of the lower end of the elevator shaft 1, a guide rail 11 is installed on the inner wall of the elevator shaft 1, a guide block 13 is slidably connected to the inner side of the guide rail 11, the guide block 13 is installed on the outer side of the suspension belt 4, and a positioning groove 19 is opened on the inner wall of the guide rail 11;

[0025] Furthermore, an electromagnet a14 is installed on the inner wall of the guide block 13, and a brake rod 15 is elastically connected to the inner side of the guide block 13 through a spring 16, an electromagnet b17 is installed on one end of the brake rod 15, and a brake wheel 18 is rotatably connected to the other end of the brake rod 15; the suspension belt 4 is sequentially attached to the outer sides of the upper guide wheel 3, the tension wheel 6 and the lower guide wheel 12, and the upper guide wheel 3, the tension wheel 6 and the lower guide wheel 12 are distributed in a triangular shape; the guide block 13 is an "I"-shaped structure, and there is a gap between the guide block 13 and the car 5; the position of the electromagnet a14 and the position of the electromagnet b17 are set one by one, and the electromagnet a14 and the electromagnet b17 are magnets of the same polarity; the positioning grooves 19 are evenly spaced and distributed on the inner wall of the guide rail 11, and the connection between two adjacent positioning grooves 19 is distributed in a smooth arc shape;

[0026] The suspension motor 2 is connected to the power supply and the suspension motor 2 is controlled to rotate forward, so that the upper guide wheel 3 can be controlled to rotate clockwise, thereby driving the suspension belt 4 to move. The tension wheel 6 and the lower guide wheel 12 are used to guide the suspension belt 4 to ensure stable movement of the suspension belt 4, suspend the car 5, and pull the car 5 down. The suspension motor 2 is controlled to rotate reversely, so that the upper guide wheel 3 can be controlled to rotate counterclockwise, thereby controlling the suspension belt 4 to pull the car 5 up. When the suspension belt 4 is driven, the guide block 13 slides on the guide rail 11. When the elevator fails, the electromagnet can be a14 and electromagnet b17 are powered on, and electromagnets a14 and b17 with the same polarity repel each other, pushing the brake rod 15 to move, and the brake rod 15 squeezes and accumulates force on the spring 16, and pushes the brake wheel 18 to move, and gradually clamps the brake wheel 18 into the positioning groove 19, and gradually slows down the descent of the car 5 by utilizing the obstruction friction between the brake wheel 18 and the positioning groove 19, until the car 5 is stopped, and the locking of the brake wheel 18 and the positioning groove 19 is utilized to reinforce the positioning of the car 5 and improve the safety of the elevator;

[0027] Furthermore, an adjusting motor 8 is installed inside the elevator shaft 1, and a screw 9 is connected to the output end of the adjusting motor 8, and a fixing seat 7 is threadedly connected to the outer side of the screw 9, and a tensioning wheel 6 is rotatably connected to the left end of the fixing seat 7, and a limit rod 10 is passed through the fixing seat 7, and one end of the limit rod 10 is connected to the elevator shaft 1;

[0028] Specifically, the fixing seat 7 is slidably connected to the limiting rod 10, and the limiting rod 10 and the screw rod 9 are parallel to each other;

[0029] If the suspension belt 4 becomes loose after long-term use, the adjusting motor 8 can be connected to the power supply and controlled to rotate forward, thereby controlling the screw rod 9 connected to the output end to rotate, and then controlling the fixing seat 7 connected to the outer thread to move forward. At the same time, the fixing seat 7 slides on the limit rod 10 to ensure the stable horizontal movement of the fixing seat 7. The fixing seat 7 drives the tensioning wheel 6 to move forward, and pushes the suspension belt 4 to be tensioned to ensure the stable suspension of the car 5 by the suspension belt 4. The adjusting motor 8 is controlled to reverse and drive the screw rod 9 to reverse, thereby controlling the fixing seat 7 to drive the tensioning wheel 6 to move backward, and flexibly adjusting the tension of the suspension belt 4. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. An elevator suspension device, comprising an elevator shaft (1), characterized in that: A suspension motor (2) is installed on the inner side of the upper end of the elevator shaft (1); the output end of the suspension motor (2) is connected to an upper guide wheel (3); the outer side of the upper guide wheel (3) is sleeved with a suspension belt (4); one end of the suspension belt (4) is connected to the upper side of the car (5); and the other end of the suspension belt (4) is connected to the lower side of the car (5); An adjusting motor (8) is installed inside the elevator shaft (1), the output end of the adjusting motor (8) is connected to a screw rod (9), the outer side of the screw rod (9) is threadedly connected to a fixing seat (7), the left end of the fixing seat (7) is rotatably connected to a tensioning wheel (6), a limiting rod (10) passes through the fixing seat (7), and one end of the limiting rod (10) is connected to the elevator shaft (1); A lower guide wheel (12) is rotatably connected to the inner side of the lower end of the elevator shaft (1), a guide rail (11) is installed on the inner wall of the elevator shaft (1), a guide block (13) is slidably connected to the inner side of the guide rail (11), the guide block (13) is installed on the outer side of the suspension belt (4), and a positioning groove (19) is opened on the inner wall of the guide rail (11).

2. The elevator suspension device according to claim 1, characterized in that: An electromagnet a (14) is installed on the inner wall of the guide block (13); a brake stop rod (15) is elastically connected to the inner side of the guide block (13) via a spring (16); an electromagnet b (17) is installed on one end of the brake stop rod (15); and a brake stop wheel (18) is rotatably connected to the other end of the brake stop rod (15).

3. The elevator suspension device according to claim 1, characterized in that: The suspension belt (4) is sequentially attached to the outer sides of the upper guide wheel (3), the tension wheel (6) and the lower guide wheel (12), and the upper guide wheel (3), the tension wheel (6) and the lower guide wheel (12) are distributed in a triangle.

4. The elevator suspension device according to claim 1, characterized in that: The fixing seat (7) is slidably connected to the limiting rod (10), and the limiting rod (10) and the screw rod (9) are distributed parallel to each other.

5. The elevator suspension device according to claim 1, characterized in that: The guide block (13) is an I-shaped structure, and there is a gap between the guide block (13) and the car (5).

6. The elevator suspension device according to claim 2, characterized in that: The position of the electromagnet a (14) and the position of the electromagnet b (17) are arranged in one-to-one correspondence, and the electromagnet a (14) and the electromagnet b (17) are magnets of the same polarity.

7. The elevator suspension device according to claim 1, characterized in that: The positioning grooves (19) are distributed at equal intervals on the inner wall of the guide rail (11), and the connection between two adjacent positioning grooves (19) is distributed in a smooth arc shape.

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