A spring damping device for elevator buffers

Abstract

This utility model discloses a spring-loaded vibration damping device for elevator buffers, comprising a base plate. A fixing tube is bolted to the middle of the top of the base plate. A fixing block is fixedly connected to the bottom of the inner cavity of the fixing tube. A third damper is movably connected to the top of the fixing block. A fourth buffer spring is provided on the surface of the third damper. An adjusting plate is fixedly connected to the top of the third damper. A second damper is fixedly connected to the top of the adjusting plate. A lifting plate is fixedly connected to the top of the second damper. This utility model allows for adjustment of the device's level and height using limiting threaded rods and limiting nuts around the base plate to adapt to different installation environments and elevator buffering requirements. Simultaneously, the limiting blocks restrict the range of motion of the movable sleeve, preventing excessive movement and ensuring the stability and reliability of the device during the buffering process.

Description

Technical Field

[0001] This utility model relates to the field of elevator buffer technology, specifically to a spring damping device for elevator buffers. Background Technology

[0002] In elevator safety systems, buffers are important safety protection devices, mainly used to absorb impact energy when the elevator is overspeeding or out of control, preventing the car or counterweight from directly hitting the bottom of the shaft, thereby ensuring the safety of passengers and equipment. Currently, elevator buffers generally use spring damping devices, which absorb and release energy through the elastic deformation of the spring.

[0003] However, existing spring damping devices lack a limit function in actual use. This causes the spring damping device to continuously expand and contract due to vibration during the buffering process, resulting in continuous expansion and contraction and rebound. To address this, we propose a spring damping device for elevator buffers. Utility Model Content

[0004] The purpose of this invention is to provide a spring damping device for elevator buffers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spring damping device for elevator buffers, comprising a base plate, a fixed tube fixedly connected to the middle of the top of the base plate by bolts, a fixed block fixedly connected to the bottom of the inner cavity of the fixed tube, a third damper movably connected to the top of the fixed block, a fourth buffer spring provided on the surface of the third damper, an adjusting plate fixedly connected to the top of the third damper, a second damper fixedly connected to the top of the adjusting plate, a lifting plate fixedly connected to the top of the second damper, a first damper fixedly connected to the top of the lifting plate, a top plate fixedly connected to the top of the first damper, a connecting rod fixedly connected to the bottom of the lifting plate, a movable sleeve fixedly connected to the bottom of the connecting rod, fourth dampers movably connected to both sides of the movable sleeve, a third buffer spring provided on the surface of the fourth damper, a limit block fixedly connected to the top of the fourth damper, and a fixed frame fixedly connected to the top of the base plate.

[0006] Preferably, the base plate is movably connected to limit threaded rods on all four sides, and the top of the limit threaded rods is fixedly connected to limit nuts.

[0007] Preferably, a rubber buffer plate is fixedly connected to the top of the top plate, and the rubber buffer plate is circular in structure.

[0008] Preferably, the rubber buffer plate includes a flexible rubber block and a natural rubber block, with the bottom of the flexible rubber block fixedly connected to the top of the natural rubber block.

[0009] Preferably, a first buffer spring is provided on the outer surface of the fixed tube, and the top of the first buffer spring contacts the bottom of the movable sleeve.

[0010] Preferably, a second buffer spring is fixedly connected to the top of the lifting plate, and the top of the second buffer spring is fixedly connected to the bottom of the fixed frame.

[0011] Preferably, an anti-slip pad is fixedly connected to the bottom of the base plate, and the bottom of the anti-slip pad is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses limiting threaded rods and limiting nuts around the base plate to adjust the level and height of the device, adapting to different installation environments and elevator buffering requirements. Simultaneously, the limiting blocks restrict the range of motion of the movable sleeve, preventing excessive movement and ensuring the stability and reliability of the device during the buffering process.

[0014] 2. This utility model uses a first damper under the top plate to initially absorb and buffer the impact force during elevator descent. A second buffer spring between the lifting plate and the top plate further reduces the impact force, providing elastic cushioning. The fourth damper and third buffer spring on both sides of the movable sleeve, as well as the third damper and fourth buffer spring inside the fixed tube, can disperse and absorb the impact force in different directions and positions. Through multi-stage buffering, the damage to the device and surrounding structures caused by elevator impacts is greatly reduced, improving the buffering effect and safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing block structure of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is a schematic diagram of the flexible rubber block structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Fixed frame; 3. Movable sleeve; 4. First buffer spring; 5. Lifting plate; 6. Second buffer spring; 7. Rubber buffer plate; 71. Flexible rubber block; 72. Natural rubber block; 8. Top plate; 9. First damper; 10. Second damper; 11. Fixed tube; 12. Connecting rod; 13. Limiting block; 14. Fourth damper; 15. Third buffer spring; 16. Fixed block; 17. Third damper; 18. Fourth buffer spring; 19. Adjusting plate; 20. Limiting nut; 21. Limiting threaded rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The components of this application—1. base plate; 2. fixed frame; 3. movable sleeve; 4. first buffer spring; 5. lifting plate; 6. second buffer spring; 7. rubber buffer plate; 71. flexible rubber block; 72. natural rubber block; 8. top plate; 9. first damper; 10. second damper; 11. fixed tube; 12. connecting rod; 13. limiting block; 14. fourth damper; 15. third buffer spring; 16. fixed block; 17. third damper; 18. fourth buffer spring; 19. adjusting plate; 20. limiting nut; 21. limiting threaded rod—are all general standard parts or parts known to those skilled in the art. Their structure and principle can be obtained by those skilled in the art through technical manuals or conventional experimental methods.

[0022] Example 1:

[0023] Please see Figures 1-4The following technical solution is provided, specifically disclosing: a spring damping device for an elevator buffer, comprising a base plate 1, a fixed tube 11 fixedly connected to the middle of the top of the base plate 1 by bolts, a fixed block 16 fixedly connected to the bottom of the inner cavity of the fixed tube 11, a third damper 17 movably connected to the top of the fixed block 16, a fourth buffer spring 18 disposed on the surface of the third damper 17, an adjusting plate 19 fixedly connected to the top of the third damper 17, and a second damper 10 fixedly connected to the top of the adjusting plate 19. A lifting plate 5 is fixedly connected to the top of the damper 10. A first damper 9 is fixedly connected to the top of the lifting plate 5. A top plate 8 is fixedly connected to the top of the first damper 9. A connecting rod 12 is fixedly connected to the bottom of the lifting plate 5. A movable sleeve 3 is fixedly connected to the bottom of the connecting rod 12. A fourth damper 14 is movably connected to both sides of the movable sleeve 3. A third buffer spring 15 is provided on the surface of the fourth damper 14. A limit block 13 is fixedly connected to the top of the fourth damper 14. A fixing frame 2 is fixedly connected to the top of the base plate 1.

[0024] In practical use, the limiting threaded rods 21 and limiting nuts 20 around the base plate 1 can be used to adjust the level and height of the device to adapt to different installation environments and elevator buffering requirements. At the same time, the limiting block 13 restricts the range of motion of the movable sleeve 3 to prevent excessive movement and ensure the stability and reliability of the device during the buffering process.

[0025] Example 2:

[0026] Please see Figure 1 and Figure 2 The following technical solution is provided, specifically disclosed: Limiting threaded rods 21 are movably connected to all four sides of the base plate 1, and limiting nuts 20 are fixedly connected to the top of the limiting threaded rods 21; a rubber buffer plate 7 is fixedly connected to the top of the top plate 8; the rubber buffer plate 7 has a circular structure and includes a flexible rubber block 71 and a natural rubber block 72; the bottom of the flexible rubber block 71 is fixedly connected to the top of the natural rubber block 72; a first buffer spring 4 is provided on the outer surface of the fixed tube 11; the top of the first buffer spring 4 contacts the bottom of the movable sleeve 3; a second buffer spring 6 is fixedly connected to the top of the lifting plate 5; the top of the second buffer spring 6 is fixedly connected to the bottom of the fixed frame 2; and an anti-slip pad is fixedly connected to the bottom of the base plate 1, with anti-slip texture on the bottom of the anti-slip pad.

[0027] In actual use, the first damper 9 below the top plate 8 can initially absorb and buffer the impact force when the elevator falls. The second buffer spring 6 between the lifting plate 5 and the top plate further reduces the impact force, playing an elastic buffering role. The fourth damper 14 and the third buffer spring 15 on both sides of the movable sleeve 3, as well as the third damper 17 and the fourth buffer spring 18 in the fixed tube 11, can disperse and absorb the impact force in different directions and positions. Through multi-stage buffering, the damage of elevator impact to the device and surrounding structure is greatly reduced, and the buffering effect and safety are improved.

[0028] In use: When the elevator falls and impacts the rubber buffer plate 7 on the top plate 8, the rubber buffer plate acts first. The flexible rubber block 71 and the natural rubber block 72 absorb part of the impact force through their own elastic deformation, while reducing the noise and vibration generated by the rigid collision. After the top plate 8 is impacted, the force is transmitted to the first damper 9. The first damper converts the impact energy into heat energy through the flow and friction of the internal damping medium, such as oil, thus initially reducing the impact force. The first damper 9 transmits the force to the lifting plate 5, which compresses the second buffer spring 6. The second buffer spring stores and releases energy through elastic deformation, further buffering the impact force. At the same time, the lowering of the lifting plate drives the connecting rod 12 and the movable sleeve 3 to descend. During the descent of the movable sleeve 3, it compresses the first buffer spring 4, which provides elastic support. The fourth damper 14 and the third buffer spring 15 on both sides of the movable sleeve begin to work. The second damper consumes energy through damping, and the third buffer spring further buffers and disperses the impact force through elastic deformation. As the movable sleeve 3 descends, it transmits force to the third damper 17 and the fourth buffer spring 18 via the connecting rod 12 and adjusting plate 19. The third damper and the fourth buffer spring work together within the fixed tube 11 to provide final buffering and absorption of the impact force, ensuring a smooth stop for the elevator. Throughout the buffering process, the limit block 13 restricts the range of motion of the movable sleeve 3 to prevent excessive movement. The limit threaded rod 21 and limit nut 20 can pre-adjust the levelness and height of the device. The anti-slip pads and anti-slip textures on the bottom of the base plate 1 ensure the stability of the device on the ground, preventing it from sliding or tilting.

[0029] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0030] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A spring damper device for an elevator buffer, comprising a base plate (1), characterized in that: A fixing tube (11) is fixedly connected to the middle of the top of the base plate (1) by bolts. A fixing block (16) is fixedly connected to the bottom of the inner cavity of the fixing tube (11). A third damper (17) is movably connected to the top of the fixing block (16). A fourth buffer spring (18) is provided on the surface of the third damper (17). An adjusting plate (19) is fixedly connected to the top of the third damper (17). A second damper (10) is fixedly connected to the top of the adjusting plate (19). A lifting plate (5) is fixedly connected to the top of the second damper (10). A first damper (9) is fixedly connected to the top of the plate (5), and a top plate (8) is fixedly connected to the top of the first damper (9). A connecting rod (12) is fixedly connected to the bottom of the lifting plate (5), and a movable sleeve (3) is fixedly connected to the bottom of the connecting rod (12). A fourth damper (14) is movably connected to both sides of the movable sleeve (3). A third buffer spring (15) is provided on the surface of the fourth damper (14). A limit block (13) is fixedly connected to the top of the fourth damper (14), and a fixed frame (2) is fixedly connected to the top of the base plate (1).

2. A spring damper device for an elevator buffer according to claim 1, characterized in that The base plate (1) is movably connected to the four sides of the base plate (1), and the top of the base plate (21) is fixedly connected to the limit thread rod (20).

3. A spring damper device for an elevator buffer according to claim 1, characterized in that: A rubber buffer plate (7) is fixedly connected to the top of the top plate (8), and the rubber buffer plate (7) is a circular structure.

4. A spring damper device for an elevator buffer according to claim 3, characterized in that: The rubber buffer plate (7) includes a flexible rubber block (71) and a natural rubber block (72), with the bottom of the flexible rubber block (71) fixedly connected to the top of the natural rubber block (72).

5. The spring damper device for an elevator buffer according to claim 1, characterized in that: The outer surface of the fixed tube (11) is provided with a first buffer spring (4), and the top of the first buffer spring (4) contacts the bottom of the movable sleeve (3).

6. A spring damper device for an elevator buffer according to claim 1, characterized in that: The top of the lifting plate (5) is fixedly connected to a second buffer spring (6), and the top of the second buffer spring (6) is fixedly connected to the bottom of the fixing frame (2).

7. The spring damper device for an elevator buffer according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to an anti-slip pad, and the bottom of the anti-slip pad is provided with anti-slip texture.

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