Elevator car anti-fall protection device

Abstract

This utility model discloses an elevator car anti-fall protection device, belonging to the technical field of elevator car safety protection devices. It includes a car body, with an elastic support assembly bolted to the bottom of the car body. A protective assembly is mounted on the outside of the elastic support assembly. The elastic support assembly includes an assembly frame disposed on the lower surface of the car body, a base support fixedly connected inside the assembly frame, a rubber seat adhered to the lower surface of the base support, side plates symmetrically installed on both sides of the base support, telescopic connecting rods fixedly connected to the surfaces of the side plates, and a return spring sleeved on the outside of the telescopic connecting rods. During deformation of the rubber frame on the lower surface of the base plate, the base plate compresses the telescopic connecting rods, and the return spring undergoes elastic deformation within its elastic limit. Simultaneously, the rubber seat fixedly connected between the base support and the base plate also undergoes elastic deformation, providing dual buffer protection and improving safety during use.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator car safety protection devices, and more specifically, to an elevator car anti-fall protection device. Background Technology

[0002] The elevator car is a box-shaped space used to carry and transport people and goods. The car generally consists of main components such as the car floor, car walls, car roof, and car doors. It is the elevator body component used to transport passengers, goods, and other loads.

[0003] A search revealed an existing anti-fall protection device for elevator cars, with publication number CN215101369U. This device includes an elevator shaft and a car. Several deceleration mechanisms are included to improve deceleration efficiency. When the elevator falls, if the speed sensor detects that the falling speed exceeds a preset range, it sends a signal to the controller. The controller then de-energizes the electromagnet, causing it to lose its magnetism. At this point, a brake block extends from the inner wall of the elevator shaft under the elastic force of the telescopic rod. The brake block frequently contacts the sliding sleeve, and the friction between the brake block and the sliding sleeve reduces the elevator's descent speed. A limiting mechanism is included to limit the downward displacement of the support plate. Magnets one and two, along with a buffer mechanism, cushion the car when it reaches the bottom, mitigating the impact of the fall and thus providing some protection for the passengers inside.

[0004] During the longitudinal movement of the elevator car in the elevator shaft, the anti-fall and buffer structure between the bottom of the car and the bottom of the elevator shaft is relatively simple, which cannot effectively buffer and protect the downward-moving car, posing a great safety hazard. Therefore, we propose an elevator car anti-fall protection device to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide an elevator car anti-fall protection device. An elastic support component is installed at the bottom of the car body by bolts, and a protective component is mounted on the outside of the elastic support component. During the deformation of the rubber frame on the lower surface of the base plate, the base plate squeezes the telescopic connecting rod, and the return spring undergoes elastic deformation within its elastic limit. At the same time, the rubber seat fixed between the base support and the base plate also undergoes elastic deformation, which has a double buffer protection performance and improves the safety of use.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] An elevator car anti-fall protection device includes a car body, an elastic support component is bolted to the bottom of the car body, and a protective component is mounted on the outside of the elastic support component.

[0010] The elastic support assembly includes an assembly frame disposed on the lower surface of the car body, a base support fixedly connected inside the assembly frame, a rubber seat bonded to the lower surface of the base support, side plates symmetrically installed on both sides of the base support, telescopic connecting rods fixedly connected to the surface of the side plates, and a return spring sleeved on the outside of the telescopic connecting rods.

[0011] The protective assembly includes a base plate disposed at the bottom end of the rubber seat, a flexible corrugated sleeve bonded to the surface of the base plate, and a rubber frame fixedly connected to the lower surface of the base plate.

[0012] Preferably, the surface of the base is provided with mounting holes, and the lower surface of the car body is provided with threaded grooves, with the mounting holes and threaded grooves corresponding to each other.

[0013] Preferably, a limiting seat is symmetrically installed on the surface of the base, and the limiting seat is located on the outer side of the rubber seat.

[0014] Preferably, the bottom end of the limiting seat and the base plate bracket are provided with a buffer gap, and the bottom end of the reset spring is fixedly connected to the base plate.

[0015] Preferably, the assembly frame has assembly grooves on both side walls, and the open end of the flexible corrugated sleeve is fixedly connected to a connecting seat.

[0016] Preferably, a cross-shaped support is fixedly connected to the lower surface of the base plate, and a pad is fixedly connected to the middle position of the cross-shaped support.

[0017] Preferably, the cross-shaped support is located inside the rubber frame, and the bottom end of the pad is lower than the lower surface of the rubber frame.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] (1) The bottom of the car body of this scheme is equipped with an elastic support component by bolts. A protective component is installed on the outside of the elastic support component. During the deformation of the rubber frame on the lower surface of the bottom plate, the bottom plate squeezes the telescopic connecting rod, and the return spring undergoes elastic deformation within the elastic limit. At the same time, the rubber seat fixed between the bottom support and the bottom plate also undergoes elastic deformation, which has a double buffer protection performance and improves the safety of use.

[0021] (2) During the downward movement of the car body in this scheme, the rubber frame on the lower surface of the bottom plate first contacts the bottom of the elevator shaft. The rubber frame undergoes elastic deformation, which reduces the impact force until the rigid structure composed of the cross-shaped support seat and the pad contacts the elevator shaft, which has a good buffering and protection effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the car body and assembly frame structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the flexible corrugated sleeve and base plate structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the base plate and rubber frame structure of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Car body; 2. Flexible corrugated sleeve; 3. Connecting seat; 4. Base plate; 5. Rubber frame; 6. Cross-shaped support seat; 7. Pad plate; 8. Assembly frame; 801. Assembly groove; 9. Base support; 10. Mounting hole; 11. Rubber seat; 12. Limiting seat; 13. Side plate; 14. Telescopic connecting rod; 15. Return spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figure 1-4 An elevator car anti-fall protection device includes a car body 1, an elastic support component is bolted to the bottom of the car body 1, and a protective component is mounted on the outside of the elastic support component.

[0031] The elastic support assembly includes an assembly frame 8 disposed on the lower surface of the car body 1, a base support 9 fixedly connected inside the assembly frame 8, a rubber seat 11 bonded to the lower surface of the base support 9, side plates 13 symmetrically installed on both sides of the base support 9, a telescopic connecting rod 14 fixedly connected to the surface of the side plate 13, and a return spring 15 sleeved on the outside of the telescopic connecting rod 14.

[0032] The protective assembly includes a base plate 4 disposed at the bottom of the rubber seat 11, a flexible corrugated sleeve 2 bonded to the surface of the base plate 4, and a rubber frame 5 fixedly connected to the lower surface of the base plate 4.

[0033] The surface of the base support 9 is provided with mounting holes 10, and the lower surface of the car body 1 is provided with threaded grooves. The mounting holes 10 and the threaded grooves correspond to each other. Limit seats 12 are symmetrically installed on the surface of the base support 9. The limit seats 12 are located outside the rubber seat 11. The bottom end of the limit seat 12 and the bracket of the base plate 4 are provided with a buffer gap. The bottom end of the return spring 15 is fixedly connected to the base plate 4.

[0034] It should be noted that an elastic support assembly is bolted to the bottom of the car body 1. A protective assembly is mounted on the outside of the elastic support assembly. During the deformation of the rubber frame 5 on the lower surface of the base plate 4, the base plate 4 compresses the telescopic connecting rod 14, and the return spring 15 undergoes elastic deformation within its elastic limit. At the same time, the rubber seat 11 fixedly connected between the base support 9 and the base plate 4 also undergoes elastic deformation, providing double buffer protection and improving safety. A flexible corrugated sleeve 2 is bonded to the surface of the base plate 4. Assembly grooves 801 are opened on both sides of the assembly frame 8. A connecting seat 3 is fixedly connected to the open end of the flexible corrugated sleeve 2. The connecting seat 3 and the assembly groove 801 are inserted into each other and locked with bolts to provide dust protection for the structural components between the base plate 4 and the assembly frame 8.

[0035] See Figure 1-4 Assembly slots 801 are provided on both sides of the assembly frame 8. A connecting seat 3 is fixedly connected to the open end of the flexible corrugated sleeve 2. A cross-shaped support seat 6 is fixedly connected to the lower surface of the base plate 4. A pad 7 is fixedly connected to the middle position of the cross-shaped support seat 6. The cross-shaped support seat 6 is located inside the rubber frame 5. The bottom end of the pad 7 is lower than the lower surface of the rubber frame 5.

[0036] It should be noted that during the downward movement of the car body 1, the rubber frame 5 on the lower surface of the base plate 4 first contacts the bottom of the elevator shaft. The rubber frame 5 undergoes elastic deformation, which reduces the impact force until the rigid structure composed of the cross-shaped support seat 6 and the pad 7 contacts the elevator shaft, which has a good buffering and protective effect.

[0037] In use: An elastic support assembly is bolted to the bottom of the car body 1. A protective assembly is mounted on the outside of the elastic support assembly. During deformation of the rubber frame 5 on the lower surface of the base plate 4, the base plate 4 compresses the telescopic connecting rod 14, and the return spring 15 undergoes elastic deformation within its elastic limit. Simultaneously, the rubber seat 11, fixedly connected between the base support 9 and the base plate 4, also undergoes elastic deformation, providing double buffer protection and improving safety. A flexible corrugated sleeve 2 is bonded to the surface of the base plate 4, and the two side walls of the mounting frame 8... Assembly slots 801 are provided at each position. A connecting seat 3 is fixedly connected to the open end of the flexible corrugated sleeve 2. The connecting seat 3 and the assembly slot 801 are inserted into each other and locked with bolts to protect the structural components between the base plate 4 and the assembly frame 8 from dust. During the downward movement of the car body 1, the rubber frame 5 on the lower surface of the base plate 4 first contacts the bottom of the elevator shaft. The rubber frame 5 undergoes elastic deformation to reduce the impact force until the rigid structure composed of the cross-shaped support seat 6 and the pad 7 contacts the elevator shaft, which has a good buffering and protective effect.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. Elevator car anti-falling protection device, comprising a car body (1), characterized in that: The bottom of the car body (1) is fitted with an elastic support assembly by bolts, and a protective assembly is mounted on the outside of the elastic support assembly. The elastic support assembly includes an assembly frame (8) disposed on the lower surface of the car body (1), a base support (9) fixedly connected inside the assembly frame (8), a rubber seat (11) bonded to the lower surface of the base support (9), side plates (13) symmetrically installed on both sides of the base support (9), a telescopic connecting rod (14) fixedly connected to the surface of the side plate (13), and a return spring (15) sleeved on the outside of the telescopic connecting rod (14). The protective assembly includes a base plate (4) disposed at the bottom of the rubber seat (11), a flexible corrugated sleeve (2) bonded to the surface of the base plate (4), and a rubber frame (5) fixedly connected to the lower surface of the base plate (4).

2. An elevator car arresting device according to claim 1, characterized in that: The base (9) has mounting holes (10) on its surface and the car body (1) has threaded grooves on its lower surface. The mounting holes (10) and the threaded grooves are corresponding to each other.

3. The elevator car anti-fall protection device according to claim 1, characterized in that: The base (9) is symmetrically fitted with a limiting seat (12), which is located on the outer side of the rubber seat (11).

4. An elevator car arresting device according to claim 3, characterized in that: The bottom end of the limiting seat (12) and the support of the base plate (4) are provided with a buffer gap, and the bottom end of the reset spring (15) is fixedly connected to the base plate (4).

5. An elevator car arresting device according to claim 1, characterized in that: Assembly slots (801) are provided on both sides of the assembly frame (8), and a connecting seat (3) is fixedly connected to the open end of the flexible corrugated sleeve (2).

6. An elevator car arresting device according to claim 1, characterized in that: A cross-shaped support seat (6) is fixedly connected to the lower surface of the base plate (4), and a pad (7) is fixedly connected to the middle position of the cross-shaped support seat (6).

7. An elevator car arresting device according to claim 6, characterized in that: The cross-shaped support (6) is located inside the rubber frame (5), and the bottom end of the pad (7) is lower than the lower surface of the rubber frame (5).

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