Elevator spring tensioning device

Abstract

The utility model discloses an elevator spring tensioning device, and belongs to the field of elevators, the elevator spring tensioning device comprises a bottom plate, a mounting hole is formed above the bottom plate, a tensioning assembly is arranged above the bottom plate, the tensioning assembly comprises a lifting frame, supporting plates are slidably connected to the left side and the right side of the lifting frame, and the supporting plates are fixedly connected with the upper portion of the bottom plate; the outer surface of the supporting plate is movably sleeved with a lifting plate, an adjusting block is fixedly connected to the rear portion of the lifting plate, a screw penetrates through the upper portion of the adjusting block in a threaded mode, the screw is rotationally connected with the upper portion of the bottom plate, and a spring is arranged on the inner surface of the lifting frame; the rotating shaft penetrates through the left side and the right side of the inner surface of the lifting frame and is rotationally connected. According to the elevator chain tensioning device, the tensioning assembly is arranged to push the tensioning wheel to abut against the chain on the elevator, so that the chain is tensioned, the tensioning assembly can adjust the force of the tensioning wheel abutting against the chain, and the effect of conveniently adjusting the tensioning degree is achieved.

Description

Technical Field

[0001] This application relates to the field of elevators, and more specifically, to an elevator spring tensioning device. Background Technology

[0002] An elevator is a vertical lifting machine powered by an electric motor, equipped with a box-shaped cabin, used for transporting people or goods in multi-story buildings. As a vertical transportation tool, elevators have become an important and indispensable piece of building equipment in high-rise buildings and public places. With the development of computer technology, automation technology, and power electronics technology, modern elevators have become typical mechatronics products. With the overall improvement of the national economic strength and the significant increase in people's living standards, real estate developers have vigorously launched mid-to-high-end low-rise and high-rise residential buildings, driving the rapid growth of residential elevators and making them a major driver of growth in the entire elevator market.

[0003] Patent document CN202296702U discloses an elevator spring tensioning device. This utility model relates to the field of elevator technology, and in particular to an elevator spring tensioning device. It includes a tensioning wheel, an upper support plate, a lower support plate, and a pull rod spring. The tensioning wheel is rotatably mounted on the lower support plate, and the pull rod spring is connected between the upper and lower support plates. In the above application, the pull rod spring pushes against the tensioning wheel to tension the chain on the elevator. However, the tension depends entirely on the spring. When the tension needs to be adjusted, other springs need to be replaced, which is inconvenient for adjusting the tension. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an elevator spring tensioning device, solving the problems mentioned in the background section. To achieve the above objectives, this utility model is implemented through the following technical solution: An elevator spring tensioning device includes a base plate with mounting holes on its upper surface. A tensioning assembly is disposed on the upper surface of the base plate. The tensioning assembly includes a lifting frame, with support plates slidably connected to the left and right sides of the lifting frame. The support plates are fixedly connected to the upper surface of the base plate. A lifting plate is movably fitted onto the outer surface of the support plates. An adjusting block is fixedly connected to the rear of the lifting plate. A screw threaded through the upper surface of the adjusting block is rotatably connected to the upper surface of the base plate. A spring is disposed on the inner surface of the lifting frame.

[0005] Preferably, the tensioning assembly further includes a rotating shaft, which is rotatably connected to the left and right sides of the inner surface of the lifting frame, and a tensioning wheel is fixedly connected to the outer surface of the rotating shaft.

[0006] Preferably, a support frame is rotatably connected to the outer surface of the screw, and the support frame is fixedly connected to the top of the base plate.

[0007] Preferably, a first limiting component is provided on the inner surface of the lifting frame. The first limiting component includes a first limiting block and a first limiting ring. The first limiting block and the first limiting ring are fixedly connected to the top of the inner surface of the lifting frame. A second limiting component is provided below the first limiting component.

[0008] Preferably, the second limiting component includes a second limiting block and a second limiting ring, and the second limiting block and the second limiting ring are fixedly connected to the upper part of the lifting plate.

[0009] Preferably, the upper end of the spring is disposed between the first limiting block and the first limiting ring, and the lower end of the spring is disposed between the second limiting block and the second limiting ring.

[0010] The advantages of this application are:

[0011] (1) This application uses a tensioning component to push the tensioning wheel against the chain on the elevator, thereby tensioning the chain. The tensioning component can adjust the force of the tensioning wheel against the chain, and has the function of facilitating the adjustment of the tension.

[0012] (2) This application places the spring by setting a first limiting component and a second limiting component. By adjusting the tensioning component, the first limiting component and the second limiting component can be moved away from each other, which facilitates the removal of the spring for replacement and maintenance. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a bottom view of the overall structure of this utility model;

[0016] Figure 3 This is a left view of the overall structure of this utility model;

[0017] Figure 4 This is a rear view of the overall structure of this utility model.

[0018] In the above image,

[0019] 1. Base plate; 2. Mounting hole; 3. Tensioning assembly; 301. Lifting frame; 302. Support plate; 303. Lifting plate; 304. Adjusting block; 305. Screw; 306. Rotating shaft; 307. Tensioning wheel; 308. Spring; 4. Support frame; 5. First limiting assembly; 501. First limiting block; 502. First limiting ring; 6. Second limiting assembly; 601. Second limiting block; 602. Second limiting ring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0022] See Figures 1-4 This embodiment provides an elevator spring tensioning device, including a base plate 1 with mounting holes 2 on its upper surface. A tensioning assembly 3 is disposed on the upper surface of the base plate 1, and the tensioning assembly 3 includes a lifting frame 301, which is H-shaped. Support plates 302 are slidably connected to the left and right sides of the lifting frame 301. The support plates 302 are provided with grooves for the lifting frame 301 to slide. The support plates 302 are fixedly connected to the upper surface of the base plate 1. There are two support plates 302. A lifting plate 303 is movably fitted onto the outer surface of the support plates 302. An adjusting block 3 is fixedly connected to the rear of the lifting plate 303. 04. A screw 305 is threaded through the top of the adjusting block 304. The screw 305 is rotatably connected to the top of the base plate 1. A spring 308 is provided on the inner surface of the lifting frame 301. The tensioning assembly 3 also includes a rotating shaft 306. The rotating shaft 306 passes through and is rotatably connected to the left and right sides of the inner surface of the lifting frame 301. A tensioning wheel 307 is fixedly connected to the outer surface of the rotating shaft 306. A groove is provided on the tensioning wheel 307. A support frame 4 is rotatably connected to the outer surface of the screw 305. A bearing is provided between the support frame 4 and the screw 305. The support frame 4 is fixedly connected to the top of the base plate 1. The support frame 4 is L-shaped.

[0023] In practical use, the above-mentioned equipment is first installed on the corresponding position on the elevator through the mounting hole 2, so that the tension wheel 307 is aligned and pushes against the chain on the elevator. At this time, the screw 305 is rotated, and the rotation of the screw 305 drives the adjusting block 304 away from the base plate 1. The adjusting block 304 will drive the lifting plate 303 away from the base plate 1. The lifting plate 303 will push against the spring 308. The spring 308 will apply elastic force to push against the lifting frame 301, so that the lifting frame 301 slides upward between the two support plates 302. The lifting frame 301 will drive the rotating shaft 306 to make the tension wheel 307 push against the chain on the elevator, thereby tensioning the chain. By adjusting the distance between the lifting plate 303 and the base plate 1, different forces are applied to the spring 308, and the spring 308 will apply different amounts of elastic force to the lifting frame 301, thereby driving the tension wheel 307 to adjust the tension of the chain on the elevator. Example 2

[0024] See Figures 1-4 Based on Embodiment 1, a first limiting component 5 is provided on the inner surface of the lifting frame 301. The first limiting component 5 includes a first limiting block 501 and a first limiting ring 502. The first limiting block 501 is disposed within the first limiting ring 502. The first limiting block 501 and the first limiting ring 502 are fixedly connected to the top of the inner surface of the lifting frame 301. The first limiting block 501 is cylindrical in shape. A second limiting component 6 is provided below the first limiting component 5. The second limiting component 6 includes a second limiting block 601 and a second limiting ring 602. The second limiting block 601 is disposed within the second limiting ring 502. Inside the positioning ring 602, the second limiting block 601 and the second limiting ring 602 are fixedly connected to the upper part of the lifting plate 303. The second limiting block 601 is cylindrical in shape. The upper end of the spring 308 is located between the first limiting block 501 and the first limiting ring 502. The spring 308 is placed in the annular space between the first limiting block 501 and the first limiting ring 502. The lower end of the spring 308 is located between the second limiting block 601 and the second limiting ring 602. The positions of the first limiting block 501 and the first limiting ring 502 correspond to the positions of the second limiting block 601 and the second limiting ring 602.

[0025] In practical use, when the lifting plate 303 pushes against the spring 308, causing the spring 308 to exert a spring force against the lifting frame 301, the first limiting ring 502 and the second limiting ring 602 will limit the spring 308, confining its position within a circle to prevent the spring 308 from shifting or falling off. When it is necessary to remove the spring 308, the adjusting block 304 is driven by rotating the screw 305, causing the lifting plate 303 to approach the base plate 1. At this time, the spring force exerted by the spring 308 on the lifting frame 301 is weakened. The two ends of the spring 308 are removed from the space between the first limiting block 501 and the first limiting ring 502, and the second limiting block 601 and the second limiting ring 602, respectively, to facilitate the replacement of the spring 308.

[0026] 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. An elevator spring tensioning device, comprising a base plate (1), characterized in that, The base plate (1) has an installation hole (2) on its upper part. A tensioning assembly (3) is provided on the upper part of the base plate (1). The tensioning assembly (3) includes a lifting frame (301). Support plates (302) are slidably connected to the left and right sides of the lifting frame (301). The support plates (302) are fixedly connected to the upper part of the base plate (1). A lifting plate (303) is movably sleeved on the outer surface of the support plate (302). An adjusting block (304) is fixedly connected to the rear of the lifting plate (303). A screw (305) is threaded through the upper part of the adjusting block (304). The screw (305) is rotatably connected to the upper part of the base plate (1). A spring (308) is provided on the inner surface of the lifting frame (301).

2. The elevator spring tensioning device according to claim 1, characterized in that, The tensioning assembly (3) also includes a rotating shaft (306), which is connected to the left and right sides of the inner surface of the lifting frame (301) and rotates through it. A tensioning wheel (307) is fixedly connected to the outer surface of the rotating shaft (306).

3. The elevator spring tensioning device according to claim 2, characterized in that, The outer surface of the screw (305) is rotatably connected to a support frame (4), and the support frame (4) is fixedly connected to the top of the base plate (1).

4. The elevator spring tensioning device according to claim 3, characterized in that, The inner surface of the lifting frame (301) is provided with a first limiting component (5), the first limiting component (5) includes a first limiting block (501) and a first limiting ring (502), the first limiting block (501) and the first limiting ring (502) are fixedly connected to the top of the inner surface of the lifting frame (301), and a second limiting component (6) is provided below the first limiting component (5).

5. The elevator spring tensioning device according to claim 4, characterized in that, The second limiting component (6) includes a second limiting block (601) and a second limiting ring (602), which are fixedly connected to the upper part of the lifting plate (303).

6. The elevator spring tensioning device according to claim 5, characterized in that, The upper end of the spring (308) is disposed between the first limiting block (501) and the first limiting ring (502), and the lower end of the spring (308) is disposed between the second limiting block (601) and the second limiting ring (602).

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