Safety buffer device for construction hoist
By adopting a double-layer buffer structure in the construction hoist, and utilizing components such as elastic buffer rings and buffers, the problem of the inability to effectively absorb the impact force of the car falling in the existing technology has been solved, thus achieving safe buffering of the car and reducing damage.
Patent Information
- Application Number
- CN202520544750.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing safety buffer devices of construction hoists cannot effectively absorb and disperse the impact force of the car falling, making the car prone to damage.
It adopts a double-layer buffer structure, including a first buffer structure and a second buffer structure. Utilizing components such as elastic buffer rings, buffers, and damping springs, it absorbs and dissipates the impact force of the car falling through flexible support and force dispersion.
It effectively reduces the impact force of the car falling, reduces damage to the car, achieves safe buffering, and improves the safety of the construction hoist.
Smart Images

Figure CN223792724U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction hoist technology, and specifically discloses a safety buffer device for construction hoists. Background Technology
[0002] Construction platforms belong to the construction hoist series. A simple construction elevator consists of several parts, including a car, drive mechanism, standard section, wall attachment, chassis, railing, and electrical system. Construction hoists are commonly used construction machinery on construction sites that can transport both personnel and materials vertically.
[0003] Currently, the safety buffer devices used in construction hoists employ a single buffering method, which cannot effectively absorb and disperse the impact force of the car falling, making it easy to damage the car during buffering. Therefore, a new safety buffer device for construction hoists is needed to solve this problem. Utility Model Content
[0004] This utility model proposes a safety buffer device for construction hoists, which absorbs and dissipates the force of the car falling, reduces the impact force of the car falling, and effectively absorbs and disperses the impact force by using softness to overcome hardness, thereby reducing damage to the car and achieving safety buffering.
[0005] This utility model is implemented as follows: a safety buffer device for a construction hoist includes a car installed on a track tower, a floor plate provided below the car; a first buffer structure and a second buffer structure located above the first buffer structure are provided above the floor plate.
[0006] The first buffer structure includes a second connecting plate fixedly connected to the upper surface of the base plate, a support plate disposed above the second connecting plate, multiple mounting parts installed on opposite sides of the second connecting plate and the support plate, and multiple elastic buffer rings installed between the second connecting plate and the support plate through the mounting parts.
[0007] The second buffer structure includes a first connecting plate disposed above the support plate, a buffer frame disposed above the first connecting plate, and a buffer installed between the buffer frame and the first connecting plate.
[0008] As a preferred embodiment of the safety buffer device for construction hoists according to this utility model, a base plate is fixedly connected inside the support plate, a first reinforcing member is fixedly connected between the lower end face of the base plate and the inner wall of the support plate, and a second reinforcing member is fixedly connected between the upper end face of the base plate and the inner wall of the support plate.
[0009] As a preferred safety buffer device for construction hoists according to this utility model, push plates that penetrate the first connecting plate and are fixedly connected to the support plate are fixedly connected to both the left and right sides of the buffer frame, and damping springs are installed between the inner walls of the two push plates and the first connecting plate.
[0010] As a preferred embodiment of the safety buffer device for construction hoists according to this utility model, the plurality of elastic buffer rings are arranged at horizontal and vertical intervals.
[0011] As a preferred embodiment of the safety buffer device for construction hoists according to this utility model, the upper end surface of the buffer frame is provided with a rubber pad.
[0012] As a preferred embodiment of the safety buffer device for construction hoists according to this utility model, the first reinforcing member has a trapezoidal structure.
[0013] The beneficial effects of this utility model are:
[0014] 1. This safety buffer device for construction hoists contacts the buffer frame when the car falls. The buffer frame supports the car and moves downward under force. The buffer absorbs and dissipates the force of the car falling, reducing the impact force of the car falling.
[0015] 2. Simultaneously, the support plate bears the force, dispersing the force of the car's descent onto multiple elastic buffer rings. Through these multiple elastic buffer rings, the impact force can be effectively absorbed and dispersed, reducing damage to the car and thus achieving safe buffering of the car. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1 This is an overall structural diagram of a safety buffer device for a construction hoist according to the present invention;
[0018] Figure 2 This is a structural diagram of the support plate of this utility model;
[0019] Figure 3 This is a structural diagram of the buffer frame of this utility model;
[0020] Figure 4 This is a structural diagram of the base plate of this utility model.
[0021] In the diagram, the markings are: 1. Car; 2. Floor plate; 3. First connecting plate; 301. Damping spring; 302. Buffer frame; 303. Push plate; 4. Buffer; 5. Support plate; 501. Second connecting plate; 502. Mounting component; 503. Elastic buffer ring; 6. Base plate; 601. First reinforcing member; 602. Second reinforcing member. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0023] Please see Figure 1-4 A safety buffer device for a construction hoist includes a car 1 installed on a track tower, a floor 2 provided below the car 1, a first buffer structure and a second buffer structure located above the first buffer structure above the floor 2.
[0024] The first buffer structure includes a second connecting plate 501 fixedly connected to the upper end face of the base plate 2, a support plate 5 disposed above the second connecting plate 501, a plurality of mounting parts 502 installed on the opposite side of the second connecting plate 501 and the support plate 5, and a plurality of elastic buffer rings 503 installed between the second connecting plate 501 and the support plate 5 through the mounting parts 502.
[0025] The second buffer structure includes a first connecting plate 3 disposed above the support plate 5, a buffer frame 302 disposed above the first connecting plate 3, and a buffer 4 installed between the buffer frame 302 and the first connecting plate 3.
[0026] In this embodiment: the first buffer structure and the second buffer structure work together to improve the safety buffering effect on the car 1;
[0027] Specifically, when the car 1 falls, it comes into contact with the buffer frame 302. The buffer frame 302 supports the car 1 while being subjected to downward force. The buffer 4 (the buffer 4 is existing technology and consists of a hydraulic device, plunger, spring, and guide rod) can absorb and dissipate the force of the car 1 falling, reducing the impact force of the car 1 falling. At the same time, the support plate 5 is subjected to force, dispersing the force of the car 1 falling to multiple elastic buffer rings 503. Thus, through multiple elastic buffer rings 503, the impact force can be effectively absorbed and dispersed by using softness to overcome hardness, reducing damage to the car 1, thereby achieving safe buffering of the car 1.
[0028] As a technical optimization of this utility model, a base plate 6 is fixedly connected inside the support plate 5, a first reinforcing member 601 is fixedly connected between the lower end face of the base plate 6 and the inner wall of the support plate 5, and a second reinforcing member 602 is fixedly connected between the upper end face of the base plate 6 and the inner wall of the support plate 5.
[0029] In this embodiment, by providing a first reinforcing member 601 and a second reinforcing member 602 inside the support plate 5, the support strength of the support plate 5 can be improved, thereby achieving stable support for the car 1.
[0030] As a technical optimization of this utility model, push plates 303 that penetrate the first connecting plate 3 and are fixedly connected to the support plate 5 are fixedly connected to both the left and right sides of the buffer frame 302. Damping springs 301 are installed between the inner walls of the two push plates 303 and the first connecting plate 3.
[0031] In this embodiment: when the buffer frame 302 is pushed by the car 1, it can push the push plate 303 to move down, and then the damping spring 301 can further buffer the force of the car 1 falling down.
[0032] As a technical optimization of this utility model, multiple elastic buffer rings 503 are arranged at horizontal and vertical intervals.
[0033] In this embodiment, by arranging multiple elastic buffer rings 503 at horizontal and vertical intervals, the elastic buffer rings 503 can provide buffering effects in multiple directions, which helps to evenly distribute the impact force across the entire elastic buffer ring 503.
[0034] As a technical optimization of this utility model, a rubber pad is provided on the upper surface of the buffer frame 302.
[0035] In this embodiment, the buffer frame 302 and the car 1 in contact with the buffer frame 302 can be protected by rubber pads.
[0036] As a technical optimization of this utility model, the first reinforcing member 601 has a trapezoidal structure.
[0037] In this embodiment, the first reinforcing member 601 has a trapezoidal structure, which can improve the support strength of the support plate 5.
[0038] The working principle and usage process of this utility model are as follows: When the car 1 falls, it comes into contact with the buffer frame 302. The buffer frame 302 supports the car 1 and moves downward under force. The buffer 4 (the buffer 4 is existing technology and consists of a hydraulic device, plunger, spring, and guide rod) can absorb and consume the force of the car 1 falling, reducing the impact force of the car 1 falling. At the same time, the push plate 303 moves downward under force, and the damping spring 301 can further buffer the force of the car 1 falling and push the support plate 5 under force. The first reinforcing member 601 and the second reinforcing member 602 can improve the support strength of the support plate 5, thereby achieving stable support for the car 1. The support plate 5 distributes the force of the car 1 falling to multiple elastic buffer rings 503. Through the multiple elastic buffer rings 503, the impact force can be effectively absorbed and dispersed by using softness to overcome hardness, reducing damage to the car 1, thereby achieving safe buffering of the car 1.
[0039] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A safety buffer device for a construction hoist, comprising a car (1) mounted on a track tower, a bottom plate (2) being arranged below the car (1), characterized in that: The first buffering structure and the second buffering structure are arranged above the bottom plate (2); The first buffering structure comprises a second connecting plate (501) fixedly connected to the upper end surface of the bottom plate (2), a supporting plate (5) arranged above the second connecting plate (501), a plurality of mounting pieces (502) mounted on the opposite sides of the second connecting plate (501) and the supporting plate (5), and a plurality of elastic buffering rings (503) mounted between the second connecting plate (501) and the supporting plate (5) through the mounting pieces (502); The second buffering structure comprises a first connecting plate (3) arranged above the supporting plate (5), a buffering frame (302) arranged above the first connecting plate (3), and a buffer (4) mounted between the buffering frame (302) and the first connecting plate (3).
2. A safety buffer device for a construction elevator as defined in claim 1, wherein: The supporting plate (5) is fixedly connected with a base plate (6) inside, the first reinforcing piece (601) is fixedly connected between the lower end surface of the base plate (6) and the inner wall of the supporting plate (5), and the second reinforcing piece (602) is fixedly connected between the upper end surface of the base plate (6) and the inner wall of the supporting plate (5).
3. A safety buffer device for a construction elevator as defined in claim 1, wherein: The buffering frame (302) is fixedly connected with a push plate (303) penetrating through the first connecting plate (3) and fixedly connected with the supporting plate (5) on the left and right sides, and the inner wall of the two push plates (303) is mounted with a damping spring (301) between the first connecting plate (3).
4. A safety buffer device for a construction elevator as defined in claim 1, wherein: The plurality of elastic buffering rings (503) are arranged in horizontal and vertical intervals.
5. A safety buffer device for a construction elevator as defined in claim 1, wherein: The upper end surface of the buffering frame (302) is provided with a rubber pad.
6. A safety buffer device for a construction elevator as defined in claim 2, wherein: The first reinforcing piece (601) is in a trapezoidal structure.