Pedal stool for vehicle ladder operation frame

Abstract

The utility model provides a step stool for a vehicle ladder operation frame, and relates to the technical field of rail transit operation equipment, the step stool comprises a hinge seat, a hinge plate and a pedal frame, the hinge seat is fixedly installed on an operation frame stand column, and the projection of the hinge seat on the horizontal plane is C-shaped; the hinge plate is rotatably connected with the hinge base through a pin shaft, an elliptical hole for the pin shaft to penetrate through is formed in the hinge plate, when the pin shaft is located at the first end of the elliptical hole, the distance between the pin shaft and the near end of the hinge base is larger than the distance between the pin shaft and the hinge base, and when the pin shaft is located at the second end of the elliptical hole, the hinge plate is hinged to the hinge base. The distance between the pin shaft and the near end of the hinge seat is smaller than that between the pin shaft and the hinge seat; and the pedal frame is fixedly connected with the hinge plate. When the pedal stool is used, the pedal frame can be pulled upwards, then the pedal frame is rotated by 90 degrees to be placed at the horizontal position, then an operator can sit on the pedal frame to have a rest, the pedal stool can also serve as a step for getting on and off handrails, and when not in use, the pedal stool is folded and hidden on the inner side of the handrails of the operation frame without occupying space. The problem that an existing high-altitude operation frame is inconvenient to climb is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail transit operation equipment, specifically relating to a step stool for a car ladder operation frame. Background Technology

[0002] The overhead contact line is a traction device installed in the wilderness beside the railway. This equipment has no spares, and to ensure continuous power supply to electric locomotives and the normal operation of locomotive traffic, it needs to be inspected and repaired regularly. High-altitude maintenance of railway overhead contact lines is a frequent task in routine railway maintenance, characterized by its "high altitude, high voltage, and high risk," requiring workers to climb several meters or even tens of meters into the air to inspect the equipment.

[0003] When performing high-altitude maintenance work on railway overhead contact lines, workers often need to climb onto the railings of the work frame to repair the lines. However, the railings are generally high and there are no steps to help them go up and down, making it difficult to do so.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this utility model is to provide a step stool for a vehicle ladder working frame to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A step stool for a vehicle ladder working frame includes:

[0008] A hinge seat is fixedly installed on the working frame column, and the projection of the hinge seat on the horizontal plane is C-shaped.

[0009] A hinge plate is rotatably connected to a hinge seat via a pin. The hinge plate has an elliptical hole through which the pin passes. When the pin is located at the first end of the elliptical hole, the distance between the pin and the proximal end of the hinge seat is greater than the distance between the pin and the hinge seat. When the pin is located at the second end of the elliptical hole, the distance between the pin and the proximal end of the hinge seat is less than the distance between the pin and the hinge seat.

[0010] A pedal frame, which is fixedly connected to a hinge plate.

[0011] Preferably, the hinge plate has a first position and a second position. When the hinge plate is in the first position or the second position, the hinge seat restricts the hinge plate from rotating around the pin. When the hinge plate is between the first position and the second position, the hinge plate can rotate around the pin.

[0012] Preferably, the first position and the second position form a 90° angle.

[0013] Preferably, when the hinge plate is in the first position, the pin is located at the second end of the elliptical hole, and the side of the hinge seat near the hinge plate is in contact with the hinge plate to restrict the hinge plate from rotating around the pin.

[0014] Preferably, when the hinge plate is in the second position, the pin is located at the first end of the elliptical hole, and the rear end of the hinge seat contacts the hinge plate to restrict the hinge plate from rotating around the pin.

[0015] Beneficial effects:

[0016] This utility model provides a step stool for a vehicle ladder working frame. When in use, the step stool can be pulled up and then rotated 90 degrees to place it in a horizontal position. After that, the operator can sit on the step stool to rest, or it can be used as a step to go up and down the railing. When not in use, it can be folded up and hidden inside the railing of the working frame, without taking up space. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0018] Figure 1 A perspective view of a step stool for a vehicle ladder working frame provided for an embodiment of this utility model.

[0019] Figure 2 A top view of a step stool for a vehicle ladder working frame provided in an embodiment of this utility model.

[0020] Figure 3 Rear view of a step stool for a vehicle ladder working frame provided in an embodiment of this utility model.

[0021] Figure 4 A front view of a step stool for a vehicle ladder working frame provided in an embodiment of this utility model.

[0022] Figure 5 This is a front view of the hinge plate in an embodiment of this utility model.

[0023] Figure 6 This is a top view of the hinge plate in an embodiment of this utility model.

[0024] Figure 7 This is a left view of the hinge plate in an embodiment of this utility model.

[0025] Figure 8 A side view of the ladder work frame with a step stool installed on the work frame railing and flipped to the second position.

[0026] Figure 9Rear view of the ladder work frame with a step stool installed on the work frame railing and flipped to the second position.

[0027] In the diagram: 1. Hinge seat; 2. Hinge plate; 3. Pedal frame; 4. Pin; 5. Oval hole. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0033] The present invention will now be described in detail with reference to the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0034] This utility model addresses the problems of inconvenient access and lack of rest areas in current overhead contact line work frames by providing a step stool for a vehicle ladder work frame, such as... Figures 1-4 As shown, the step stool includes:

[0035] Hinge seat 1, the projection of hinge seat 1 on the horizontal plane is C-shaped, and it is fixedly installed on the working frame column by means of bolts or welding;

[0036] Hinge plate 2, hinge plate 2 and hinge seat 1 are rotatably connected by pin 4, such as Figures 5-7 As shown, the hinge plate 2 is provided with an elliptical hole 5 for the pin 4 to pass through. When the pin 4 is located at the first end of the elliptical hole 5, the distance between the pin 4 and the near end of the hinge seat 1 is greater than the distance between the pin 4 and the hinge seat 1. When the pin 4 is located at the second end of the elliptical hole 5, the distance between the pin 4 and the near end of the hinge seat 1 is less than the distance between the pin 4 and the hinge seat 1.

[0037] The pedal frame 3 is square and made of angle iron. It is fixedly connected to the hinge plate 2 by bolts or welding. The pedal frame 3 serves as a step or a seat for workers to rest. When the hinge plate 2 rotates along the pin 4, the pedal frame 3 rotates accordingly.

[0038] Specifically, the hinge plate 2 has a first position and a second position. When the hinge plate 2 rotates around the pin 4 to the first position, the middle part of the hinge seat 1 contacts the hinge plate 2, thus preventing the hinge plate 2 from rotating around the pin 4. The pedal frame 3 needs to be lifted upwards and the pin 4 needs to reach the first end of the elliptical hole 5 for the hinge plate 2 to continue rotating. When the hinge plate 2 is in the second position, such as... Figures 1-4 As shown in Figures 8 and 9, the middle part of the hinge seat 1 contacts the rear end of the hinge plate 2 to restrict the hinge plate 2 from continuing to rotate around the pin 4; when the hinge plate 2 is between the first position and the second position, it is not restricted by the hinge seat 1, and the hinge plate 2 can rotate around the pin 4.

[0039] In a preferred embodiment of this utility model, the first position and the second position form a 90° angle. More specifically, the first position is located in a vertical plane and the second position is located in a horizontal plane.

[0040] In standby mode, hinge plate 2 and pedal frame 3 are in the first position. At this time, pin 4 is at the top of elliptical hole 5, and the lower surface of hinge seat 1 is in contact with hinge plate 2, so the pedal stool cannot rotate. When the pedal stool is needed, pull up pedal frame 3 and then rotate pedal frame 3 90° to place it in the horizontal position, i.e., the second position. It can then be used as a step to facilitate workers to climb onto the work frame railing to repair the lines, or sit on the pedal stool to rest.

[0041] In some embodiments, when the pedal frame 3 is placed in a horizontal position, the pedal frame 3 can be pushed toward the hinge seat 1 so that the pin 4 reaches the first end of the elliptical hole 5, so that the rear end of the hinge plate 2 fits as close as possible to the middle of the hinge seat 1, thereby improving the stability of the pedal frame 3 in the horizontal position.

[0042] In summary:

[0043] This utility model provides a step stool for a vehicle ladder working frame. When in use, the step stool 3 can be pulled up and then rotated 90° to place it in a horizontal position. After that, the worker can sit on the step stool 3 to rest, or it can be used as a step to go up and down the railing. When not in use, it can be folded up and hidden inside the railing of the working frame, without taking up space, thus solving the problem of inconvenience in climbing existing high-altitude working frames.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A step stool for a vehicle ladder working frame, characterized in that, include: A hinge seat is fixedly installed on the working frame column, and the projection of the hinge seat on the horizontal plane is C-shaped. A hinge plate is rotatably connected to a hinge seat via a pin. The hinge plate has an elliptical hole through which the pin passes. When the pin is located at the first end of the elliptical hole, the distance between the pin and the proximal end of the hinge seat is greater than the distance between the pin and the hinge seat. When the pin is located at the second end of the elliptical hole, the distance between the pin and the proximal end of the hinge seat is less than the distance between the pin and the hinge seat. A pedal frame, which is fixedly connected to a hinge plate.

2. The step stool for a vehicle ladder working frame according to claim 1, characterized in that, The hinge plate has a first position and a second position. When the hinge plate is in the first position or the second position, the hinge seat restricts the hinge plate from rotating around the pin. When the hinge plate is between the first position and the second position, the hinge plate can rotate around the pin.

3. A step stool for a vehicle ladder working frame according to claim 2, characterized in that, The first position and the second position form a 90° angle.

4. A step stool for a vehicle ladder working frame according to claim 2, characterized in that, When the hinge plate is in the first position, the pin is located at the second end of the elliptical hole, and the side of the hinge seat near the hinge plate contacts the hinge plate to restrict the hinge plate from rotating around the pin.

5. A step stool for a vehicle ladder working frame according to claim 2, characterized in that, When the hinge plate is in the second position, the pin is located at the first end of the elliptical hole, and the rear end of the hinge seat contacts the hinge plate to restrict the hinge plate from rotating around the pin.

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