Tensioning structure for elevator traveling cable

Abstract

The utility model discloses a tensioning structure for an elevator traveling cable, which comprises the following components: a traveling cable of which the end part is in butt joint with a machine room control cabinet and an elevator car respectively; the bottom of the heavy hammer assembly is connected with a sliding block through a first connecting piece, the heavy hammer assembly comprises a guide wheel and a balancing weight, and the traveling cable is wound on the guide wheel; a sliding rail is vertically assembled on the side face of the support through a second connecting piece, and the sliding block is arranged on the sliding rail in a sliding mode. According to the tensioning structure of the elevator traveling cable, the heavy hammer assembly achieves the straightening and tensioning functions on the traveling cable through the gravity of the heavy hammer assembly, and a vertical sliding structure formed by the sliding blocks and the sliding rails can achieve moving operation guiding of the heavy hammer assembly synchronous with lifting of an elevator car and the traveling cable. The structure is suitable for being assembled and used in a small-size narrow hoistway, the operation space needed by the traveling cable can be effectively reduced, the problems that the traveling cable swings, collides with hoistway components, is hooked and is large in abnormal sound when a lift car runs are solved, and the traveling cable runs more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a tensioning structure for an elevator accompanying cable. Background Art

[0002] Elevator traveling cables connect the elevator car to the machine room control cabinet, transmitting operating information and control commands. One end of the traveling cable connects to the machine room control cabinet, while the other end connects to the elevator car, moving with it as it rises and falls. As modern buildings continue to grow taller, the length of elevator traveling cables is also increasing.

[0003] Most of the existing elevator traveling cables are naturally suspended or limited by steel wires from top to bottom. As the building height increases, the traveling cables swing significantly and are prone to collision with beam walls, guide rail brackets and other protrusions in the shaft, causing injuries and loud abnormal noises when the car is running. They may even be caught by these protrusions and pulled apart. Utility Model Content

[0004] The purpose of the utility model is to provide a tensioning structure for the traveling cable of an elevator in order to solve the problems of obvious swing, collision with shaft components, hooking and loud abnormal noise of the traveling cable during the operation of the existing elevator car.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a tensioning structure for an elevator traveling cable, comprising:

[0006] The ends of the accompanying cable are connected to the machine room control cabinet and the elevator car respectively;

[0007] A weight assembly, the bottom of which is connected to a slider via a first connecting member, the weight assembly comprising a guide wheel and a counterweight, the accompanying cable being wound around the guide wheel;

[0008] The side surface of the bracket is vertically equipped with a slide rail through a second connecting member, and the slider is slidably arranged on the slide rail.

[0009] As a further description of the above technical solution:

[0010] The first connecting member is a U-shaped structure with an opening facing inward, and one side and the bottom of the first connecting member are respectively assembled on the weight assembly and the sliding block through fasteners.

[0011] As a further description of the above technical solution:

[0012] The second connecting member is an S-shaped structure, and its ends are respectively assembled on the slide rail and the bracket through fasteners.

[0013] As a further description of the above technical solution:

[0014] A limit stopper is provided at the end of the slide rail.

[0015] As a further description of the above technical solution:

[0016] The rotating shafts on both sides of the guide wheel are passed through the through holes on both sides of the hanger. A retaining spring is provided on the outside of the hanger to position the rotating shaft and the hanger. The hanger is assembled on the counterweight block.

[0017] As a further description of the above technical solution:

[0018] The hanging part is an elastic sheet metal part.

[0019] As a further description of the above technical solution:

[0020] The guide wheel tread is provided with an anti-slip notch.

[0021] In summary, due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] Beneficial effects:

[0023] In this utility model, the weight assembly in the tensioning structure of the elevator's traveling cable uses its own gravity to straighten and tighten the traveling cable. A vertical sliding structure composed of a slider and rails guides the movement of the weight assembly in sync with the elevator car and the traveling cable's rise and fall. This structure is suitable for assembly in small, narrow hoistways, effectively reducing the required operating space for the traveling cable and preventing it from swinging, colliding with hoistway components, snagging, and making loud noises during car operation, thereby ensuring more stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The figure is a structural schematic diagram of a tensioning structure for an elevator traveling cable.

[0026] Figure 2 A schematic diagram of the structure of a weight assembly and a first connecting member in a tensioning structure for an elevator traveling cable Figure 1 .

[0027] Figure 3 A schematic diagram of the structure of a weight assembly and a first connecting member in a tensioning structure for an elevator traveling cable Figure 2 .

[0028] Legend:

[0029] 1. Traveling cable; 2. Weight assembly; 3. Slider; 4. First connecting piece; 5. Slide rail; 6. Bracket; 7. Second connecting piece; 8. Guide wheel; 9. Counterweight; 10. Limit block; 11. Hanging piece; 12. Circlip; 13. Anti-slip notch. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0032] See also Figure 1-3 The utility model provides a technical solution: a tensioning structure for an elevator traveling cable, comprising:

[0033] Traveling cable 1, whose ends are connected to the machine room control cabinet and the elevator car respectively;

[0034] A weight assembly 2, the bottom of which is connected to a slider 3 via a first connecting member 4, the weight assembly 2 includes a guide wheel 8 and a counterweight 9, and the accompanying cable 1 is wound around the guide wheel 8;

[0035] The side surface of the bracket 6 is vertically equipped with a slide rail 5 via a second connecting member 7 , and the slider 3 is slidably arranged on the slide rail 5 .

[0036] The first connecting member 4 is a U-shaped structure with its opening facing inward. One side and the bottom thereof are respectively assembled on the weight assembly 2 and the slider 3 by fasteners to improve the transmission stability between the weight assembly 2 and the slider 3 when the elevator car is raised and lowered, and to ensure the stability of the slider 3 sliding on the slide rail 5 and the accompanying cable 1 moving synchronously with the elevator car.

[0037] The second connecting member 7 is an S-shaped structure, with its ends mounted on the slide rail 5 and bracket 6 via fasteners. This design improves the seismic resistance of the slide rail 5, allowing the second connecting member 7 to buffer even slight shaking of the elevator car and vibration within the hoistway, thereby improving the verticality of the slide rail 5 and the stability of the sliding of the slider 3 thereon.

[0038] A limit block 10 is provided at the end of the slide rail 5 to limit the moving range of the slider 3.

[0039] The two shafts of the guide wheel 8 are inserted through the through holes on both sides of the hanger 11. A retaining spring 12 is provided on the outside of the hanger 11 to position the shaft and the hanger 11. The hanger 11 is assembled on the counterweight 9. The hanger 11 is an elastic sheet metal component. This makes the assembly of the guide wheel 8 on the counterweight 9 more convenient and stable.

[0040] The guide wheel 8 is provided with an anti-slip notch 13 on its tread to laterally limit the traveling cable 1 sliding thereon, thereby ensuring the operational stability of the traveling cable 1 and the tensioning structure.

[0041] The installation process of a tensioning structure for an elevator traveling cable in this embodiment includes: installing a slide rail 5 on a bracket 6 through a second connector 7 and a fastener, wherein the bracket 6 is the elevator car main rail or other hoistway component positioned in the hoistway; connecting a weight assembly 2 to a slider 3 through a first connector 4 and a fastener, and the slider 3 slides and docks with the slide rail 5; finally, the traveling cable 1 passes through the weight assembly 2 and docks its ends with the machine room control cabinet and the elevator car, respectively, completing the installation of the entire device. The weight assembly 2 is made of at least one guide wheel 8 mounted on a hanger 11 through a retaining spring 12. The hanger 11 is an elastic sheet metal part that can be elastically opened to engage the guide wheel 8 and is assembled on a counterweight 9. Its working principle includes: when the elevator car moves up and down, it synchronously drives the traveling cable 1 to move. The weight assembly 2 drives the slider 3 to move up and down on the slide rail 5 through its own gravity (and the pulling of the traveling cable 1 when moving up), while simultaneously achieving the functions of straightening and tensioning the traveling cable 1.

[0042] In summary, due to the adoption of the above technical solution, the tensioning structure for an elevator traveling cable of this embodiment has the following beneficial effects compared to the prior art:

[0043] In this utility model, the weight assembly in the tensioning structure of the elevator's traveling cable uses its own gravity to straighten and tighten the traveling cable. A vertical sliding structure composed of a slider and rails guides the movement of the weight assembly in sync with the elevator car and the traveling cable's rise and fall. This structure is suitable for assembly in small, narrow hoistways, effectively reducing the required operating space for the traveling cable and preventing it from swinging, colliding with hoistway components, snagging, and making loud noises during car operation, thereby ensuring more stable operation.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensioning structure for an elevator traveling cable, characterized in that: include: The ends of the accompanying cable are connected to the machine room control cabinet and the elevator car respectively; A weight assembly, the bottom of which is connected to a slider via a first connecting member, the weight assembly comprising a guide wheel and a counterweight, the accompanying cable being wound around the guide wheel; The side surface of the bracket is vertically equipped with a slide rail through a second connecting member, and the slider is slidably arranged on the slide rail.

2. A tensioning structure for an elevator traveling cable according to claim 1, characterized in that: The first connecting member is a U-shaped structure with an opening facing inward, and one side and the bottom of the first connecting member are respectively assembled on the weight assembly and the sliding block through fasteners.

3. The tensioning structure for an elevator traveling cable according to claim 1, characterized in that: The second connecting member is an S-shaped structure, and its ends are respectively assembled on the slide rail and the bracket through fasteners.

4. The tensioning structure for an elevator traveling cable according to claim 1, characterized in that: A limit stopper is provided at the end of the slide rail.

5. The tensioning structure for an elevator traveling cable according to claim 1, characterized in that: The rotating shafts on both sides of the guide wheel are passed through the through holes on both sides of the hanger. A retaining spring is provided on the outside of the hanger to position the rotating shaft and the hanger. The hanger is assembled on the counterweight block.

6. A tensioning structure for an elevator traveling cable according to claim 5, characterized in that: The hanging part is an elastic sheet metal part.

7. The tensioning structure for an elevator traveling cable according to claim 1, characterized in that: The guide wheel tread is provided with an anti-slip notch.

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