Adjustable counterweight wheel for elevator

Abstract

According to the technical scheme, the adjustable counterweight wheel for the elevator comprises a counterweight wheel assembly and a counterweight frame, the counterweight wheel assembly is rotationally connected to the counterweight frame and comprises a counterweight wheel body and a fixing frame, the counterweight wheel body is rotationally connected into the fixing frame, and the counterweight wheel body is rotationally connected into the fixing frame. A rotary connecting piece is arranged between the fixing frame and the counterweight frame, the rotary connecting piece is a rotary bolt, the fixing frame is rotatably connected to the counterweight frame through the rotary bolt, and the counterweight wheel has the advantages that the angle can be adjusted during installation so as to meet the requirements of elevators of different structures for the angle of the counterweight wheel.

Description

Technical Field

[0001] The utility model relates to the field of elevator accessories, in particular to an adjustable counterweight wheel for an elevator. Background Art

[0002] Elevators are common vertical lifting tools, which are widely used in high-rise office buildings and residential buildings. The counterweight wheel is a supporting device connecting the counterweight block and the elevator car, which is used to ensure the balance between the elevator car and the effective load part of the car.

[0003] Currently, there is a Chinese patent with publication number CN212769337U and its name is a high-stability elevator counterweight wheel, which includes a counterweight wheel, a mounting frame, a nozzle, an anti-unhooking and a limiter. The limiters are installed on the left and right sides of the body, and the limiters are installed on the load-bearing frame. An axis is installed at the center of the body, and a bearing is installed in the axis. A load-bearing frame is installed inside the bearing, and supporting legs are installed on the outside of both sides of the load-bearing frame. Mounting frames are installed on both sides of the load-bearing frame, and a connector is installed inside the top of the mounting frame.

[0004] However, the current counterweight wheel body has limiters installed on both sides, and the limiters are installed on the load-bearing frame, that is, the position of the counterweight wheel is fixed, and its angle cannot be adjusted. At present, due to market requirements and combined with actual site considerations, there are multiple structural options for elevators in the early stage of hoistway layout, and there are also different requirements for the angle of the counterweight wheel. It is very inconvenient to prepare counterweight wheel structures with multiple angles. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide an adjustable counterweight wheel for an elevator, which has the advantage that the angle can be adjusted during installation to meet the requirements of elevators with different structures for the counterweight wheel angle.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An adjustable counterweight wheel for an elevator comprises a counterweight wheel assembly and a counterweight frame, wherein the counterweight wheel assembly is rotatably connected to the counterweight frame, the counterweight wheel assembly comprises a counterweight wheel body and a fixing frame, the counterweight wheel body is rotatably connected to the fixing frame, a rotating connecting piece is arranged between the fixing frame and the counterweight frame, the rotating connecting piece is a rotating bolt, and the fixing frame is rotatably connected to the counterweight frame by the rotating bolt.

[0008] Furthermore, the fixing frame includes a base, a top cover and a pair of side plates, the base and the top cover are arranged opposite to each other, the pair of side plates are fixed between the base and the top cover, and the counterweight wheel body is rotatably connected between the pair of side plates.

[0009] Furthermore, a positioning hole matching the size of the rotating bolt is opened on the base, and the rotating bolt is inserted into the positioning hole.

[0010] Furthermore, the rotating bolt includes a smooth section and a threaded section, the smooth section is located in the positioning hole, and the threaded section penetrates into the counterweight frame.

[0011] Furthermore, a gasket is sleeved on the threaded section, and the gasket abuts against the top inner wall of the counterweight frame.

[0012] Furthermore, a locking nut is threadedly connected to the threaded section, and the locking nut presses the gasket.

[0013] Furthermore, a through hole arranged in the radial direction is formed at the tail end of the threaded section, and an anti-dropping pin is inserted into the through hole.

[0014] Furthermore, at least two locking nuts are provided.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The counterweight wheel assembly and the counterweight frame use the rotating bolt as a rotating connection, and the rotating bolt serves as a rotating shaft. During the installation of the counterweight wheel, the angle of the counterweight wheel can be quickly adjusted according to actual needs so that it can adapt to the use requirements of different types of elevator cars.

[0017] 2. The smooth section of the rotating bolt contacts the inner wall of the positioning hole. Since both surfaces are smooth and the friction coefficient is small, it is convenient for the staff to rotate the counterweight wheel assembly.

[0018] 3. The threaded section of the rotating bolt is threadedly connected to the locking nut. After the angle of the counterweight wheel assembly is adjusted, the staff tightens the locking nut to increase the pressure between the gasket and the counterweight frame, thereby increasing the static friction resistance between the two. At the same time, it also increases the pressure of the membrane between the rotating bolt head and the base, thereby increasing the static friction resistance between the two, and ultimately preventing the counterweight wheel assembly from continuing to rotate.

[0019] 4. The contact area between the gasket and the counterweight frame is large, the pressure per unit area is reduced, and thus the surface wear of the counterweight frame is reduced.

[0020] 5. An anti-dropout pin is inserted into the tail end of the threaded section, which serves to hinder the rotating bolt and prevent the rotating bolt from accidentally falling out.

[0021] 6. Both the counterweight wheel assembly and the counterweight frame are made of prefabricated standard assembly parts, which shortens the installation period of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional structure of an adjustable counterweight wheel for an elevator.

[0023] Figure 2 It is a schematic diagram of the front view structure of the heavy wheel assembly.

[0024] Figure 3 It is a schematic diagram of the side view structure of the counterweight wheel assembly.

[0025] In the figure, 1. counterweight wheel assembly; 11. counterweight wheel body; 12. fixing frame; 121. base; 1211. positioning hole; 122. top cover; 123. side plate; 2. rotating bolt; 21. smooth section; 22. threaded section; 23. gasket; 24. anti-drop pin; 3. counterweight frame. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0027] Example:

[0028] An adjustable counterweight wheel for an elevator, such as Figure 1 As shown, it includes a counterweight wheel assembly 1 and a counterweight frame 3, wherein the counterweight wheel assembly 1 is rotatably connected to the counterweight frame 3, wherein the counterweight frame 3 serves as a basis for installing other components. During the installation process, the counterweight wheel assembly 1 can quickly adjust the counterweight wheel angle according to actual needs, so as to facilitate adaptation to the needs of different elevator cars. In addition, both the counterweight wheel assembly 1 and the counterweight frame 3 are prefabricated standard assembly parts, so there is no need to install the counterweight wheel assembly 1 at the construction site, thus shortening the construction period.

[0029] like Figure 2 and Figure 3As shown, the counterweight wheel assembly 1 includes a counterweight wheel body 11 and a fixing frame 12, and the counterweight wheel body 11 is rotatably connected in the fixing frame 12. The fixing frame 12 includes a base 121, a top cover 122 and a pair of side plates 123, the base 121 and the top cover 122 are arranged opposite to each other, the pair of side plates 123 are fixed between the base 121 and the top cover 122, the bottom of the pair of side plates 123 is fixed to the two outer sides of the base 121 by bolts, and the top of the pair of side plates 123 is also fixed to the outer side of the top cover 122 by bolts, so that the base 121, the top cover 122 and the side plates 123 enclose a cavity for accommodating the counterweight wheel body 11. The counterweight wheel body 11 is rotatably connected between the pair of side plates 123, and the end of the rotating shaft of the counterweight wheel body 11 is rotatably connected to the side plates 123. The arc-shaped outer side surface of the counterweight wheel body 11 is provided with a plurality of grooves evenly arranged along the thickness direction of the counterweight wheel body 11 . When working, the traction rope used by the counterweight wheel body 11 is located in the grooves.

[0030] like Figure 1 and Figure 2 As shown, a positioning hole 1211 is opened on the base 121 , and the positioning hole 1211 is located at the center of the base 121 .

[0031] like Figure 1 As shown, a rotating connector is provided between the fixed frame 12 and the counterweight frame 3, and the fixed frame 12 and the counterweight wheel body 11 thereon can rotate with the rotating connector as the axis to complete the work of adjusting the angle of the counterweight wheel body 11. The rotating connector is a rotating bolt 2, which passes through a positioning hole 1211 matching its size, and the head of the rotating bolt 2 abuts against the base 121, and the fixed frame 12 is rotatably connected to the counterweight frame 3 through the rotating bolt 2. The rotating bolt 2 includes a smooth section 21 and a threaded section 22, the smooth section 21 is located near the head of the rotating bolt 2, and the threaded section 22 is located below the smooth section 21 and penetrates into the counterweight frame 3. A gasket 23 is sleeved on the threaded section 22, and the gasket 23 abuts against the top inner wall of the counterweight frame 3. The contact area with the counterweight frame 3 is increased through the gasket 23, the pressure per unit area is reduced, and the wear between the two is reduced. A locking nut is threadedly connected to the threaded section 22, and the locking nut presses the gasket 23. At least two locking nuts are provided. In this embodiment, there are two locking nuts to avoid accidental loosening of a single locking nut.

[0032] like Figure 1 As shown, a through hole is opened at the tail end of the threaded section 22, and the through hole is arranged along the radial direction of the rotating bolt 2. An anti-slip pin 24 is inserted into the through hole, and the length of the anti-slip pin 24 is greater than the diameter of the positioning hole 1211. If the rotating bolt 2 accidentally slips out, the anti-slip pin 24 can resist the edge of the positioning hole 1211 to prevent the rotating bolt 2 from slipping out.

[0033] Specific installation process:

[0034] The base 121, the top cover 122, the pair of side plates 123, and the counterweight body 11 are installed in advance as prefabricated parts, and the counterweight frame 3 is also assembled. The counterweight assembly 1 and the counterweight frame 3 are then transported to the construction site of the elevator and arranged at the designated installation position, and then the rotating bolt 2 is inserted into the base 121 and the counterweight frame 3. After the counterweight assembly 1 is rotated to a suitable angle with the rotating bolt 2 as the axis, the gasket 23 is then screwed into the rotating bolt 2 and several locking nuts are screwed in sequence, so that the locking nuts and the heads of the rotating bolts 2 clamp the base 121 and the top of the counterweight frame 3, thereby fixing the angle of the counterweight assembly 1.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An adjustable counterweight wheel for an elevator, characterized in that: The invention comprises a counterweight wheel assembly and a counterweight frame, wherein the counterweight wheel assembly is rotatably connected to the counterweight frame, the counterweight wheel assembly comprises a counterweight wheel body and a fixing frame, the counterweight wheel body is rotatably connected to the fixing frame, a rotating connecting piece is arranged between the fixing frame and the counterweight frame, the rotating connecting piece is a rotating bolt, and the fixing frame is rotatably connected to the counterweight frame by the rotating bolt.

2. The adjustable counterweight wheel for an elevator according to claim 1, characterized in that: The fixing frame comprises a base, a top cover and a pair of side plates. The base and the top cover are arranged opposite to each other, the pair of side plates are fixed between the base and the top cover, and the counterweight wheel body is rotatably connected between the pair of side plates.

3. The adjustable counterweight wheel for an elevator according to claim 2, characterized in that: The base is provided with a positioning hole matching the size of the rotating bolt, and the rotating bolt is inserted into the positioning hole.

4. The adjustable counterweight wheel for an elevator according to claim 3, characterized in that: The rotating bolt comprises a smooth section and a threaded section, wherein the smooth section is located in the positioning hole, and the threaded section penetrates into the counterweight frame.

5. The adjustable counterweight wheel for an elevator according to claim 4, characterized in that: A gasket is sleeved on the threaded section, and the gasket abuts against the top inner wall of the counterweight frame.

6. The adjustable counterweight wheel for an elevator according to claim 5, characterized in that: A locking nut is threadedly connected to the threaded section, and the locking nut presses the gasket.

7. The adjustable counterweight wheel for an elevator according to claim 4, characterized in that: The tail end of the threaded section is provided with a through hole arranged in the radial direction, and an anti-dropping pin is inserted into the through hole.

8. The adjustable counterweight wheel for an elevator according to claim 6, characterized in that: At least two locking nuts are provided.

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