Idler wheel for assisting movement of lift cage
By designing a rotatable roller mechanism, the problem of rollers being unable to adjust their deflection angle and spacing in existing technologies has been solved, achieving a tight fit between the rollers and the guide rail frame, and improving the load-bearing capacity and safety of the elevator cage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG RONGDA CONSTR MACHINERY MFG CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-08
AI Technical Summary
The existing hoist cage rollers cannot be adjusted in terms of deflection angle and spacing, resulting in a small contact area between the rollers and the guide rail frame, making them prone to detachment and affecting the stability and load-bearing capacity of the cage movement.
A rotatable roller mechanism was designed, which is mounted on a fixed column by a mounting bracket. The roller mechanism is allowed to rotate around the fixed column, change the tilt angle, and ensure that the roller and the guide rail are in close contact, with the main load-bearing structure sharing the load.
This improves the load-bearing capacity and safety of the hoist cage, ensuring stable movement of the cage along the predetermined track and preventing the rollers from detaching from the guide rail frame.
Smart Images

Figure CN224212222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary rollers, and more particularly to a roller for assisting in the movement of a hoist cage. Background Technology
[0002] When the hoist cage moves on the hoist, it needs the assistance of rollers. The rollers fit closely with the guide rail frame to help the hoist cage move along the predetermined track, ensuring the accuracy and stability of the operation and preventing the hoist cage from swaying or deviating. In addition, the rollers can also bear part of the weight of the hoist cage to a certain extent, playing an auxiliary support role. They share the load with the main load-bearing structure, improving the load-bearing capacity and safety of the hoist.
[0003] Most existing auxiliary rollers for elevator cages are fixed pulley structures that are directly fixed to the elevator frame. During use, the deflection angle of the rollers and the distance between the rollers and the guide rails cannot be adjusted, which can easily lead to a small contact area between the rollers and the guide rails. In severe cases, the rollers may even detach from the guide rails, causing the rollers to be unable to share the load with the main load-bearing structure, which is not conducive to the movement of the elevator cage. Utility Model Content
[0004] In view of this, the present invention provides a roller for assisting in the movement of a hoist cage. The main technical problem to be solved is that the roller's deflection angle can be changed, and the distance between the roller and the guide rail frame can be adjusted to facilitate the movement of the cage along a predetermined track. This allows the roller and the main load-bearing structure to share the load of the hoist cage, thereby improving the hoist's load-bearing capacity and safety.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a roller for assisting the movement of a hoist cage, comprising an installation mechanism, wherein a roller mechanism is mounted on the installation mechanism, the installation mechanism includes a fixing plate, a fixing column is fixedly connected to the side wall of the fixing plate, the roller mechanism includes a mounting frame, the mounting frame has an installation hole inside, the mounting frame is sleeved on the fixing column through the installation hole, connecting plates are fixedly connected to both ends of the mounting frame, a fixing shaft is fixedly connected between the two connecting plates, and a roller is movably connected to the outer surface of the fixing shaft.
[0006] By adopting the above technical solution, the roller mechanism is installed on the elevator through the installation mechanism. By installing the mounting frame on the fixed column, the mounting frame can rotate around the fixed column, allowing the roller mechanism to rotate around the fixed column as well. This changes the tilt angle of the roller mechanism, ensuring that the rollers inside the roller mechanism are always in close contact with the guide rail frame, and together with the main load-bearing structure, they bear the load of the elevator cage, thereby improving the load-bearing capacity and safety of the elevator.
[0007] As a further description of the above technical solution:
[0008] The surface of the fixing plate has a through hole, and the interior of the fixing column has a fixing hole, the position of which corresponds to the position of the through hole.
[0009] By adopting the above technical solution, it is easy to install screws through the fixing holes and through holes to fix the installation mechanism on the elevator.
[0010] As a further description of the above technical solution:
[0011] The fixing hole is movably connected to a mounting screw, and a pressure plate is fitted on the outer surface of the mounting screw. The left side wall of the pressure plate is in contact with the right side wall of the connecting plate.
[0012] By adopting the above technical solution, the mounting mechanism is fixed to the elevator by mounting screws, and the left end of the roller mechanism is limited by the pressure plate, which facilitates the installation of the roller mechanism on the mounting mechanism.
[0013] As a further description of the above technical solution:
[0014] The left end of the mounting screw is threaded with a nut.
[0015] By adopting the above technical solution, it is easy to fix the installation mechanism.
[0016] As a further description of the above technical solution:
[0017] The number of fixed shafts is two, and the two fixed shafts are located on the left and right sides of the mounting frame, respectively. The rollers are also located on the left and right sides of the mounting frame, respectively.
[0018] By adopting the above technical solution, no matter how the roller mechanism is tilted during use, at least one roller will be in close contact with the guide rail frame, which facilitates the movement of the cage along the predetermined track.
[0019] By employing the above technical solution, the roller for assisting in the movement of a hoist cage according to this utility model has at least the following beneficial effects:
[0020] 1. Compared with the prior art, this roller mechanism for assisting the movement of the hoist cage is installed on the hoist by a mounting mechanism. By mounting the mounting frame on the fixed column, the mounting frame can rotate around the fixed column, allowing the roller mechanism to rotate around the fixed column as well. This changes the tilt angle of the roller mechanism, ensuring that the rollers inside the roller mechanism are always in close contact with the guide rail frame. Together with the main load-bearing structure, they bear the load of the hoist cage, improving the load-bearing capacity and safety of the hoist.
[0021] 2. Compared with the prior art, the roller mechanism of this auxiliary lifting cage has at least one roller that is closely attached to the guide rail frame no matter how it is tilted, which facilitates the auxiliary cage to move along the predetermined track. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0023] Figure 2 This is a first-view sectional view of the internal structure proposed in this utility model;
[0024] Figure 3 This is a second-view sectional view of the internal structure proposed in this utility model;
[0025] Figure 4 This is an exploded view of the present invention.
[0026] Legend:
[0027] 1. Installation mechanism; 101. Fixing plate; 102. Fixing column; 103. Mounting screw; 104. Pressure plate; 105. Nut; 2. Roller mechanism; 201. Mounting bracket; 202. Connecting plate; 203. Fixing shaft; 204. Roller. Detailed Implementation
[0028] Reference Figure 1-4 This utility model provides a roller mechanism for assisting in the movement of a hoist cage: It includes a mounting mechanism 1, on which a roller mechanism 2 is mounted. The mounting mechanism 1 includes a fixing plate 101, and a fixing column 102 is fixedly connected to the side wall of the fixing plate 101. The roller mechanism 2 includes a mounting frame 201, with mounting holes inside. The mounting frame 201 is sleeved on the fixing column 102 through the mounting holes and can rotate around the fixing column 102. Connecting plates 202 are fixedly connected to both ends of the mounting frame 201, and the two connecting plates 202 are fixedly connected together. A fixed shaft 203 is connected, and a roller 204 is movably connected to the outer surface of the fixed shaft 203. The steel cable changes direction through the roller 204. In use, the roller mechanism is installed on the elevator through the mounting mechanism. By mounting the mounting frame on the fixed column, the mounting frame can rotate around the fixed column, allowing the roller mechanism to rotate around the fixed column 102, changing the tilt angle of the roller mechanism 2, so that the rollers in the roller mechanism can always be in close contact with the guide rail frame, and share the load of the elevator cage with the main load-bearing structure, thereby improving the load-bearing capacity and safety of the elevator.
[0029] The surface of the fixing plate 101 has a through hole, and the interior of the fixing column 102 has a fixing hole. The position of the fixing hole corresponds to the position of the through hole, so that the mounting screw 103 can pass through the fixing hole and the through hole to fix the mounting mechanism 1 to the elevator. The mounting screw 103 is movably connected inside the fixing hole. The outer surface of the mounting screw 103 is fitted with a pressure plate 104. The left side wall of the pressure plate 104 fits against the right side wall of the connecting plate 202. The left end of the mounting screw 103 is threaded with a nut 105. The mounting mechanism 1 is fixed to the elevator by the mounting screw 103. The left end of the roller mechanism 2 is limited by the pressure plate 104, so that the roller mechanism 2 can be installed on the mounting mechanism 1.
[0030] There are two fixed shafts 203, which are located on the left and right sides of the mounting frame 201 respectively. The rollers 204 are located on the left and right sides of the mounting frame 201 respectively. When in use, no matter how the roller mechanism 2 is tilted, at least one roller 204 is closely attached to the guide rail frame, which facilitates the movement of the auxiliary cage along the predetermined track.
[0031] Working principle: The roller mechanism is installed on the elevator through the mounting mechanism. By mounting the mounting frame on the fixed column, the mounting frame can rotate around the fixed column, which in turn allows the roller mechanism to rotate around the fixed column 102. This changes the tilt angle of the roller mechanism 2, ensuring that the rollers inside the roller mechanism are always in close contact with the guide rail frame. Together with the main load-bearing structure, they bear the load of the elevator cage, improving the load-bearing capacity and safety of the elevator.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A roller for assisting in the movement of a hoist cage, comprising a mounting mechanism (1), characterized in that: The mounting mechanism (1) is equipped with a roller mechanism (2). The mounting mechanism (1) includes a fixing plate (101). A fixing column (102) is fixedly connected to the side wall of the fixing plate (101). The roller mechanism (2) includes a mounting frame (201). The mounting frame (201) has an installation hole inside. The mounting frame (201) is sleeved on the fixing column (102) through the installation hole. Both the left and right ends of the mounting frame (201) are fixedly connected with connecting plates (202). A fixing shaft (203) is fixedly connected between the two connecting plates (202). A roller (204) is movably connected to the outer surface of the fixing shaft (203).
2. The roller for assisting in the movement of a hoist cage according to claim 1, characterized in that: The surface of the fixing plate (101) is provided with a through hole, and the interior of the fixing column (102) is provided with a fixing hole, the position of the fixing hole corresponding to the position of the through hole.
3. The roller for assisting in the movement of a hoist cage according to claim 2, characterized in that: The mounting hole is movably connected to a mounting screw (103), and a pressure plate (104) is fitted on the outer surface of the mounting screw (103). The left side wall of the pressure plate (104) is in contact with the right side wall of the connecting plate (202).
4. The roller for assisting in the movement of a hoist cage according to claim 3, characterized in that: The left end of the mounting screw (103) is threaded with a nut (105).
5. The roller for assisting in the movement of a hoist cage according to claim 1, characterized in that: There are two fixed shafts (203), which are located on the left and right sides of the mounting frame (201) respectively, and the rollers (204) are located on the left and right sides of the mounting frame (201) respectively.