Elevator car bottom damping device
By designing two mutually coordinated shock-absorbing devices, using a first shock-absorbing device composed of hydraulic oil and springs and a second shock-absorbing device with curved plate rollers, the problems of poor shock absorption and swaying of the elevator under different weight states are solved, and a stable and effective shock absorption effect is achieved.
Patent Information
- Application Number
- CN202422883401.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing elevator car only has one set of shock-absorbing devices installed at the bottom, which cannot effectively cope with the different weight changes when empty and loaded, resulting in poor shock absorption effect and swaying problems.
Two shock-absorbing devices that cooperate with each other are designed. The first shock-absorbing device uses a combination of hydraulic oil and springs to perform no-load shock absorption, and the second shock-absorbing device uses arc plates and rollers to perform load-bearing shock absorption, and they work in different states respectively.
It achieves stable shock absorption when the elevator is empty or loaded, has large damping, reduces swing, and improves the shock absorption effect.
Smart Images
Figure CN223385673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator shock absorption, in particular to an elevator car bottom shock absorption device. Background Art
[0002] An elevator is a permanent transportation device that serves several specific floors in a building and whose car runs 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.
[0003] The elevator car is the box-shaped space used to carry and transport people and materials. It is generally composed of the car floor, car walls, car roof, car doors and other main components. It is the part of the elevator body used to carry passengers, cargo and other loads.
[0004] The weight of an elevator is different when it is empty and loaded. The existing car bottom is only equipped with a set of shock-absorbing devices to reduce the shock of the empty and loaded elevators. The shock-absorbing effect is poor, and the shock-absorbing devices mostly use springs for shock absorption, which has low damping and there is swing during the shock absorption process. There are improvements. Utility Model Content
[0005] (1) Technical problems solved
[0006] The technical problem to be solved by the present invention is to overcome the above difficulties and provide an elevator car bottom shock absorbing device having two shock absorbing devices that can cooperate with each other and can better absorb shock for elevators of different weights such as empty or loaded.
[0007] (2) Technical solution
[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: an elevator car bottom shock-absorbing device, comprising a car bottom plate, a mounting plate provided below the car bottom plate, a plurality of first shock-absorbing devices provided at the lower corners of the mounting plate, and a second shock-absorbing device provided in the middle of the mounting plate to cooperate with the first shock-absorbing device;
[0009] The first shock absorbing device includes a first cylinder fixedly connected to the mounting plate, the bottom of the first cylinder is provided with an opening allowing hydraulic oil to pass through, a piston ring is fixed to the outside of the bottom of the first cylinder, and a second cylinder wrapping the first cylinder is provided on the outside of the piston ring, the second cylinder is filled with hydraulic oil, and a spring is sleeved on the first cylinder and abuts against the second cylinder.
[0010] As an improvement, a first plate is provided between the first cylinder and the mounting plate, and a second plate is provided at the bottom of the second cylinder.
[0011] As an improvement, a buffer pad is provided at the bottom of the second plate.
[0012] As an improvement, a square rod is fixed to the bottom of the mounting plate, a first limit plate and a second limit plate are provided at the bottom of the square rod, and the second shock absorbing device is arranged between the first limit plate and the second limit plate and is sleeved on the square rod.
[0013] As an improvement, the second shock absorbing device includes an arc-shaped plate, the arc-shaped plate is provided with a through hole sleeved on the square rod, and both ends of the arc-shaped plate are provided with symmetrically arranged rollers.
[0014] (3) Beneficial effects
[0015] The advantages of this utility model compared with the prior art are:
[0016] 1. The first shock-absorbing device can reduce the vibration of the elevator car when it is unloaded. When the first shock-absorbing device is subjected to force, the spring contracts, and the hydraulic cylinder in the second cylinder slowly enters the first cylinder through the opening, which has good shock-absorbing stability and large damping, and will not swing;
[0017] 2. The second shock absorbing device starts to work when the first shock absorbing device is halfway contracted by the force, and cooperates with the first shock absorbing device to reduce the vibration of the elevator;
[0018] 3. The arc-shaped plate on the second shock-absorbing device is deformed by force to reduce the vibration of the elevator, and the roller can guide the deformed arc-shaped plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .
[0020] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .
[0021] Figure 3 It is a schematic structural diagram of the utility model in a side view state.
[0022] Figure 4 This utility model Figure 3 Schematic diagram of the structure in cross-section at AA.
[0023] Figure 5 This utility model Figure 3 Schematic diagram of the structure in cross-section at BB.
[0024] As shown in the figure: 1. Car floor; 2. Mounting plate; 3. First shock absorber; 4. Second shock absorber; 5. First cylinder; 6. Opening; 7. Piston ring; 8. Second cylinder; 9. Spring; 10. First plate; 11. Second plate; 12. Buffer pad; 13. Square rod; 14. First limit plate; 15. Second limit plate; 16. Arc plate; 17. Through hole; 18. Roller. DETAILED DESCRIPTION
[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of the present invention: It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.
[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0030] Example 1
[0031] Combined with attachment Figure 1-5 , an elevator car bottom shock absorption device includes a car bottom plate 1, a mounting plate 2 is provided below the car bottom plate 1, a plurality of first shock absorption devices 3 are provided at the lower corners of the mounting plate 2, and a second shock absorption device 4 cooperating with the first shock absorption device 3 is provided in the middle position of the mounting plate 2.
[0032] The first shock absorbing device 3 can perform shock absorption when the elevator is unloaded, or can cooperate with the second shock absorbing device 3 to perform shock absorption when the elevator is loaded.
[0033] Combined with attachment Figure 4 The first shock absorbing device 3 includes a first cylinder 5 fixedly connected to the mounting plate 2, and an opening 6 is provided at the bottom of the first cylinder 5 for allowing hydraulic oil to pass through. A piston ring 7 is fixed to the outside of the bottom of the first cylinder 5, and a second cylinder 8 is provided on the outside of the piston ring 7 to wrap the first cylinder 5. The second cylinder 8 is filled with hydraulic oil, and a spring 9 is sleeved on the first cylinder 5 to abut against the second cylinder 8.
[0034] A first plate 10 is provided between the first cylinder 5 and the mounting plate 2 , and a second plate 11 is provided at the bottom of the second cylinder 8 .
[0035] A buffer pad 12 is provided at the bottom of the second plate 11 .
[0036] When the first shock absorber 3 is subjected to force, the spring 9 contracts, and the first cylinder 5 moves toward the second cylinder 8. The hydraulic cylinder in the second cylinder 8 is squeezed by the first cylinder 5 and passes through the opening 6 on the first cylinder 5 and enters the first cylinder 5, thereby achieving the purpose of shock absorption. When the first shock absorber 3 is not subjected to force, the spring 9 extends, the second cylinder 8 moves away from the first cylinder 5, and the hydraulic cylinder returns to the second cylinder 8.
[0037] Combined with attachment Figure 5A square rod 13 is fixed to the bottom of the mounting plate 2, and a first limiting plate 14 and a second limiting plate 15 are provided at the bottom of the square rod 13. The second shock absorbing device 4 is arranged between the first limiting plate 14 and the second limiting plate 15 and is sleeved on the square rod 13.
[0038] The second shock absorbing device 4 includes an arc-shaped plate 16 . The arc-shaped plate 16 is provided with a through hole 17 that is sleeved on the square rod 13 . Both ends of the arc-shaped plate 16 are provided with symmetrically arranged rollers 18 .
[0039] When the elevator is loaded, the first shock absorbing device 3 contracts under force. When the first shock absorbing device 3 contracts to half of its stroke, the roller 18 on the second shock absorbing device 4 contacts the ground. The roller 18 drives the arc plate 16 to deform under force, thereby achieving the purpose of shock absorption.
[0040] All features described in the description, the appended claims and the drawings are important features of the present invention, whether alone or in any combination.
[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "an implementation", "specific implementation", "other implementations", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment, implementation or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described above can also be combined in a suitable manner in any one or more embodiments, implementations or examples. The technical solutions recorded in this utility model also include technical solutions formed by any one or more specific features, structures, materials or characteristics described above, either alone or in combination.
[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace, modify, delete some features, add features or re-combine features to form a technical solution in the above embodiments without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the innovative principles of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. An elevator car bottom shock absorbing device, comprising a car bottom plate (1), characterized in that: A mounting plate (2) is provided below the car floor (1); a plurality of first shock absorbing devices (3) are provided at the corners below the mounting plate (2); and a second shock absorbing device (4) cooperating with the first shock absorbing device (3) is provided in the middle of the mounting plate (2); The first shock absorbing device (3) comprises a first cylinder (5) fixedly connected to the mounting plate (2), an opening (6) for allowing hydraulic oil to pass through is provided at the bottom of the first cylinder (5), a piston ring (7) is fixedly provided on the outer side of the bottom of the first cylinder (5), a second cylinder (8) wrapping the first cylinder (5) is provided on the outer side of the piston ring (7), the second cylinder (8) is filled with hydraulic oil, and a spring (9) is sleeved on the first cylinder (5) and abuts against the second cylinder (8).
2. The elevator car bottom shock absorbing device according to claim 1, characterized in that: A first plate (10) is provided between the first cylinder (5) and the mounting plate (2), and a second plate (11) is provided at the bottom of the second cylinder (8).
3. The elevator car bottom shock absorbing device according to claim 2, characterized in that: A buffer pad (12) is provided at the bottom of the second plate body (11).
4. The elevator car bottom shock absorbing device according to claim 1, characterized in that: A square rod (13) is fixedly provided at the bottom of the mounting plate (2), a first limiting plate (14) and a second limiting plate (15) are provided at the bottom of the square rod (13), and the second shock absorbing device (4) is provided between the first limiting plate (14) and the second limiting plate (15) and is sleeved on the square rod (13).
5. The elevator car bottom shock absorbing device according to claim 4, characterized in that: The second shock absorbing device (4) comprises an arc-shaped plate (16), the arc-shaped plate (16) is provided with a through hole (17) sleeved on the square rod (13), and both ends of the arc-shaped plate (16) are provided with symmetrically arranged rollers (18).