A roof wheel shock absorber

Abstract

The application provides a lift top wheel damping device, which comprises: a first damping layer and a third damping layer which are symmetrically arranged and respectively tightly attached to the bottom surface of an upper beam and the top surface of a base; a second damping layer embedded between the first damping layer and the third damping layer and a buffer device embedded in the inside of the first damping layer and the third damping layer; wherein the buffer device comprises: a first bottomless outer cover with the top surface facing the bottom surface of the upper beam and the top surface of the base; a first topless outer cover with the top surface covering the side wall of the first bottomless outer cover and the bottom surface close to the second damping layer; and a damping spring arranged between the first bottomless outer cover and the first topless outer cover. The lift top wheel damping device divides the traditional damping pad into three layers, and sets the buffer device with the damping spring in the inside of the first layer and the third layer, so that the damping spring in the compression state drives the recovery of the damping pad, and the buffer device covered by the damping pad limits the shaking of the damping spring, thereby increasing the stability.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator vibration reduction, and in particular to a car top wheel vibration reduction device. Background Technology

[0002] The car top pulley system is a crucial component of an elevator. It is primarily installed on the top of the elevator car to support and guide the elevator's steel cables or drive belts, ensuring smooth and safe operation. It typically consists of the car top pulley, support seats (including upper and lower support seats), shock absorbers, a protective cover, and rope guides. The shock absorbers are used to reduce vibration and noise during elevator operation.

[0003] Traditionally, there are two types of vibration damping devices installed between the support base and the upper beam in elevator cars. One type uses vibration damping pads, relying on the damping effect of the pad material itself to reduce vibration. The other type uses spring dampers or other spring-based vibration damping devices.

[0004] However, the method of vibration reduction relying on damping pads is limited by the properties of the material itself (mostly rubber). During the elevator's start and stop, the damping pads are repeatedly compressed, and their rebound can only rely on the material's properties. After repeated use, they are prone to aging and eventually lose their damping effect. On the other hand, the method of vibration reduction using spring dampers and other spring-based damping devices is problematic because the springs are constantly stretched or compressed with the elevator's start and stop. The degree of stretching or compression is uncontrollable, and at the moment the elevator stops, the springs cause unnecessary shaking. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, the traditional shock absorption method of elevator car top is difficult to effectively improve elevator comfort while providing shock absorption function.

[0006] To achieve the above objectives, this application proposes a car roof wheel shock absorption device, comprising: a car roof wheel assembly; an upper beam disposed at the bottom of the car roof wheel assembly; characterized in that a base is disposed at the bottom of the upper beam; a T-shaped connecting plate passing through the upper beam and connecting the opposite side walls of the car roof wheel assembly and the base; and a shock absorption device disposed between the two T-shaped connecting plates and closely attached to the bottom surface of the upper beam and the top surface of the base; wherein the shock absorption device comprises: a first shock absorption layer and a third shock absorption layer symmetrically arranged and respectively closely attached to the bottom surface of the upper beam and the top surface of the base; a second shock absorption layer disposed between the first shock absorption layer and the third shock absorption layer; and buffer devices respectively embedded in the inner sides of the first shock absorption layer and the third shock absorption layer; wherein the buffer device comprises: a first outer cover symmetrically arranged and whose end faces are respectively closely attached to the bottom surface of the upper beam and the top surface of the base; a second outer cover facing away from the bottom surface of the upper beam and the top surface of the base and covering the side wall of the first outer cover; and a shock absorption spring disposed between the first outer cover and the second outer cover.

[0007] The car top wheel shock absorption device of this application divides the traditional shock absorption pad into three layers, and at the same time, a buffer device with shock absorption spring is set inside the first and third layers. The shock absorption spring is always in a compressed state, and the shock absorption pad can be driven to recover through the shock absorption spring. At the same time, the buffer device covered by the shock absorption pad can further limit the sway of the shock absorption spring through the shock absorption pad itself, so that the deformation of the shock absorption spring is more stable. This solves the problem that the existing traditional elevator car top shock absorption method is difficult to effectively improve the elevator comfort while providing shock absorption function.

[0008] Furthermore, in order to prevent relative displacement between the first damping layer, the second damping layer and the third damping layer, the end faces of the first damping layer and the third damping layer that are in close contact with the second damping layer are provided with grooves, and the end faces of the second damping layer that are in close contact with the first damping layer and the third damping layer are provided with protrusions embedded in the grooves.

[0009] Furthermore, in order to improve the stability of the first and third damping layers relative to the upper beam and the base, the cross-sections of the first and third damping layers are T-shaped, wherein the transverse portions of the first and third damping layers are respectively in close contact with the bottom surface of the upper beam and the top surface of the base.

[0010] Furthermore, in order to facilitate the positioning and installation of the shock absorption device, the top surface of the first outer cover and the bottom surface of the second outer cover are respectively provided with positioning columns that penetrate the first shock absorption layer and the third shock absorption layer and extend out of the bottom surface of the upper beam and the top surface of the base. At the same time, sealing plates are provided on the top surface of the first shock absorption layer and the bottom surface of the third shock absorption layer.

[0011] The sealing plate includes: a clamping plate that is embedded in the top surface of the first damping layer and the bottom surface of the second damping layer, protruding from the side wall of the first outer cover; a cover that connects the clamping plate and seals the top surface of the first outer cover; and an elastic buckle that is symmetrically arranged on the other side of the cover with the clamping plate, wherein the cover is provided with a through hole through which the positioning post passes.

[0012] Furthermore, to facilitate the installation of the damping spring and to restrict the compression direction of the damping spring, the guide post and the mounting post are in the same vertical position.

[0013] Furthermore, in order to ensure the effective reset of the damping layer, the damping spring is always in a compressed state.

[0014] Furthermore, in order to enhance the resistance encountered by the damping spring during compression and to allow its compression energy to act more directly on the damping layer, the first outer cover and the second outer cover are connected by a slot mechanism.

[0015] The beneficial effects of this application are as follows: 1. The car top wheel shock absorption device of this application divides the traditional shock absorption pad into three layers, and at the same time, a buffer device with shock absorption spring is set inside the first and third layers. The shock absorption spring is always in a compressed state, and the shock absorption pad can be driven to recover through the shock absorption spring. At the same time, the buffer device covered by the shock absorption pad can further limit the sway of the shock absorption spring through the shock absorption pad itself, so that the deformation of the shock absorption spring is more stable. This solves the problem that the existing traditional elevator car top shock absorption method is difficult to effectively improve the elevator comfort while providing shock absorption function.

[0016] 2. This application introduces multi-layer damping while adding grooves and protrusions between adjacent damping layers to effectively limit the relative displacement between the multi-layer damping layers and enhance the effectiveness of the damping device.

[0017] 3. The damping layer in this application that contacts the bottom surface of the upper beam and the top surface of the base is a T-shaped structure, wherein the horizontal part is in close contact with the bottom surface of the upper beam and the top surface of the base, which effectively increases the contact area of ​​the damping layer, increases the static friction, and improves the stability of the damping device.

[0018] 4. The shock absorption device of this application ensures the accuracy of the installation position through the positioning column, and at the same time, it is equipped with an easily removable sealing plate. By pulling the elastic buckle, the shock absorption device can be disassembled and installed, which facilitates later maintenance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a car roof wheel shock absorption device in an embodiment of this application; Figure 2 This is a schematic diagram of the shock absorption device in the embodiments of this application; Figure 3 This is a schematic diagram of the sealing plate in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Car top wheel assembly; 2. Raising the main beam; 3. Base; 4. T-shaped connecting plate; 5. Vibration damping device; 51. First vibration damping layer; 52. Second vibration damping layer; 53. Third vibration damping layer; 54. Buffer device; 541. First outer cover; 542. Second outer cover; 543. Vibration damping spring; 544. Positioning post; 545. Sealing plate; 5451. Clamping plate; 5452. Cover; 5453. Elastic buckle; 546. Guide post; 547. Mounting post. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-3 The embodiments of the technical solutions of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figures 1-2 This illustration depicts a car top wheel vibration damping device according to this application. The device includes: a car top wheel assembly 1, an upper beam 2, a base 3, a T-shaped connecting plate 4, and a vibration damping device 5. The car top wheel assembly 1 is located at the top of the upper beam 2 and is used to support and guide the elevator wire rope or drive belt. The base 3 is located at the bottom of the upper beam 2, providing stable support for the entire vibration damping device. The T-shaped connecting plate 4 passes through the upper beam 2, connecting the opposite side walls of the car top wheel assembly 1 and the base 3, enhancing the structural stability.

[0024] Example 1: Please refer to Figure 1 and Figure 2 In this embodiment, to improve the vibration damping effect and elevator comfort, the vibration damping device 5 is disposed between the two T-shaped connecting plates 4 and closely attached to the bottom surface of the upper beam 2 and the top surface of the base 3. The vibration damping device 5 includes a first vibration damping layer 51 and a third vibration damping layer 53 arranged symmetrically, and a second vibration damping layer 52 disposed between them. Buffer devices 54 are embedded on both sides inside the first vibration damping layer 51 and the third vibration damping layer 53, respectively. The buffer device 54 includes a first outer cover 541, a second outer cover 542, and a vibration damping spring 543. The vibration damping spring 543 is always in a compressed state, which can absorb and disperse vibration energy during elevator operation, effectively reducing elevator vibration and noise, and improving elevator comfort. At the same time, the buffer device 54, covered by the vibration damping pads (i.e., the first vibration damping layer 51, the second vibration damping layer 52, and the third vibration damping layer 53), can further limit the swaying of the vibration damping spring 543 through the vibration damping pads themselves, making the deformation of the vibration damping spring 543 more stable, thereby further improving the vibration damping effect.

[0025] Example 2: Please refer to Figure 1 and Figure 2In this embodiment, to prevent relative displacement between the damping layers—specifically, to prevent relative displacement between the first damping layer 51, the second damping layer 52, and the third damping layer 53—and to improve the stability of the damping device, grooves are provided on the end faces of the first damping layer 51 and the third damping layer 53 that are in close contact with the second damping layer 52. Protrusions embedded in these grooves are also provided on the end faces of the second damping layer 52 that are in close contact with the first damping layer 51 and the third damping layer 53. This design allows the three damping layers to fit tightly together, effectively preventing relative displacement and thus enhancing the effectiveness of the damping device.

[0026] Furthermore, to improve the stability of the first damping layer 51 and the third damping layer 53 relative to the upper beam 2 and the base 3, the cross-sections of the first damping layer 51 and the third damping layer 53 are designed to be T-shaped. Specifically, the transverse portions of the first damping layer 51 and the third damping layer 53 are respectively in close contact with the bottom surface of the upper beam 2 and the top surface of the base 3. This design effectively increases the contact area between the damping layer and the upper beam 2 and the base 3, increasing the static friction and thus improving the stability of the damping device.

[0027] Example 3: Please refer to Figures 1-3 To facilitate the positioning and installation of the shock absorber, the top surface of the first bottomless cover 541 and the bottom surface of the first bottomless cover 542 are respectively provided with positioning posts 544 that penetrate the first shock absorber layer 51 and the third shock absorber layer 53 and extend outwards from the inner end face of the bottom surface of the upper beam 2 and the inner end face of the top surface of the base 3. The positioning posts 544 can play a guiding and positioning role during the installation process, so that the shock absorber can be installed accurately and quickly.

[0028] Furthermore, to facilitate the installation or removal of the damping device from the damping layer, the sealing plate 545 includes: a retaining plate 5451 that is embedded in the top surface of the first damping layer 51 and the bottom surface of the second damping layer 52, protruding from the side wall of the first outer cover 541; a cover 5452 that connects the retaining plate 5451 and seals the top surface of the first outer cover 541; and an elastic buckle 5453 symmetrically arranged on the other side of the cover 5452, wherein the cover 5452 has a through hole through which the positioning post 544 passes. The retaining plate 5451 and the buckle 5453 are engaged in the damping layer, effectively fixing both sides of the cover 5452. The through hole in the cover 5452 further defines the installation position of the cover 5452 relative to the positioning post 544. The structure of the buckle 5453 is prior art and will not be described in detail here.

[0029] Example 4: Please refer to Figure 1 and Figure 2In order to facilitate the installation of the shock-absorbing spring 543 and to restrict the compression direction of the shock-absorbing spring 543, a guide post 545 is provided on the inner wall of the top surface of the first bottomless cover 541, which is embedded in one end of the shock-absorbing spring 543, and a mounting post 546 is provided on the inner wall of the bottom surface of the first topless cover 542, which is embedded in the other end of the shock-absorbing spring 543.

[0030] Specifically, since the guide post 546 and the mounting post 547 are in the same vertical position, they define an axis perpendicular to the inner end faces of the first outer cover 51 and the second outer cover 52. By mounting the damping spring 543 on the guide post 546 and the mounting post 547, it can be ensured that the damping spring 543 maintains the correct orientation during installation, and its stretching or compression direction is on this axis. At the same time, the guide post 546 and the mounting post 547 extending into the damping spring 543 can guide the stretching and compression direction of the damping spring 543, so that the damping spring 543 remains stable during compression.

[0031] Example 5: Please refer to Figure 1 and Figure 2 To enhance the resistance experienced by the damping spring 543 during compression, allowing its compression energy to act more directly on the damping layer, the first bottomless outer cover 541 and the first topless outer cover 542 are connected by a sliding groove mechanism. The guide rail mechanism can restrict the lateral movement of the damping spring 543 during compression, enabling its compression energy to act more directly on the damping layer, thereby improving the damping effect.

[0032] In summary, the car top wheel shock absorption device of this application, through innovative designs such as multi-layer shock absorption design, buffer device, groove and protrusion, T-shaped shock absorption layer, positioning column, guide column and mounting column, and guide rail mechanism, effectively improves the shock absorption effect and comfort of elevator, while enhancing the stability and ease of installation of the shock absorption device.

[0033] In the description of the embodiments of this application, the technical terms "upper", "lower", "inner", "outer", 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 the embodiments of this application 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 the embodiments of this application.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set," "equipped with," "connected," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A car roof wheel shock absorption device, comprising: A car roof wheel device (1); an upper beam (2) disposed at the bottom of the car roof wheel device (1); characterized in that a base (3) is disposed at the bottom of the upper beam (2); a T-shaped connecting plate (4) passing through the upper beam (2) and connecting the opposite side walls of the car roof wheel device (1) and the base (3), and a shock-absorbing device (5) disposed between the two T-shaped connecting plates (4) and closely attached to the bottom surface of the upper beam (2) and the top surface of the base (3); wherein the shock-absorbing device (5) includes: a first shock-absorbing layer (51) and a third shock-absorbing layer (53) symmetrically arranged and respectively closely attached to the bottom surface of the upper beam (2) and the top surface of the base (3); and a shock-absorbing device (5) disposed at the bottom surface of the upper beam (2) and the top surface of the base (3). The second damping layer (52) between the first damping layer (51) and the third damping layer (53) and the buffer device (54) embedded in the inner sides of the first damping layer (51) and the third damping layer (53) respectively; wherein the buffer device (54) includes: a first outer cover (541) symmetrically arranged and whose end faces are respectively close to the bottom surface of the upper beam (2) and the top surface of the base (3); a second outer cover (542) facing away from the bottom surface of the upper beam (2) and the top surface of the base (3) and covering the side wall of the first outer cover (541); and a damping spring (543) set between the first outer cover (541) and the second outer cover (542).

2. The car roof wheel shock absorption device according to claim 1, characterized in that, The first damping layer (51) and the third damping layer (53) are provided with grooves on the end face of the second damping layer (52) that is in close contact with it, and the second damping layer (52) is provided with protrusions embedded in the grooves on the end face of the first damping layer (51) and the third damping layer (53) that are in close contact with it.

3. The car roof wheel shock absorption device according to claim 1, characterized in that, The cross-sections of the first damping layer (51) and the third damping layer (53) are T-shaped, wherein the transverse portions of the first damping layer (51) and the third damping layer (53) are respectively attached to the bottom surface of the upper beam (2) and the top surface of the base (3).

4. The car roof wheel shock absorption device according to claim 1, characterized in that, The top surface of the first outer cover (541) and the bottom surface of the second outer cover (542) are respectively provided with positioning posts (544) that penetrate the first damping layer (51) and the third damping layer (53) and extend out of the bottom surface of the upper beam (2) and the top surface of the base (3). At the same time, sealing plates (545) are provided on the top surface of the first damping layer (51) and the bottom surface of the third damping layer (53).

5. The car roof wheel shock absorption device according to claim 4, characterized in that, The sealing plate (545) includes: a clamping plate (5451) that is embedded in the top surface of the first damping layer (51) and the bottom surface of the second damping layer (52) and protrudes from the side wall of the first outer cover (541); a cover (5452) that connects the clamping plate (5451) and seals the top surface of the first outer cover (541); and an elastic buckle (5453) that is symmetrically arranged on the other side of the cover (5452) with the clamping plate (5451), wherein the cover (5452) is provided with a through hole through which the positioning post (5444) passes.

6. The car roof wheel shock absorption device according to claim 1, characterized in that, The top inner wall of the first outer cover (541) is provided with a guide post (546) embedded in one end of the shock-absorbing spring (543), and the bottom inner wall of the second outer cover (542) is provided with a mounting post (547) embedded in the other end of the shock-absorbing spring (543). The guide post (546) and the mounting post (547) are in the same vertical position.

7. The car roof wheel shock absorption device according to claim 1, characterized in that, The damping spring (543) is always in a compressed state.

8. The car roof wheel shock absorption device according to claim 1, characterized in that, The first outer cover (541) and the second outer cover (542) are connected by a slot mechanism.

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