Anti-toppling device for operation vehicle ladder

Abstract

The utility model discloses an anti-toppling device for an operation box ladder. The anti-toppling device is composed of a rail grabbing main frame, a fixing frame, a main body rail clamping wheel, a connecting fixing buckle, a rail surface auxiliary wheel, a fixing frame, an outer side surface auxiliary wheel and the like. The bottom of the front end of the rail grabbing main frame is fixedly provided with a fixing frame and a first main body rail clamping wheel through bolts, the upper end face of the middle of the rail grabbing main frame is provided with a connecting fixing buckle, and the outer side face of the rail grabbing main frame is provided with a rail face auxiliary wheel. A fixing frame and a second main body rail clamping wheel are fixedly arranged at the bottom of the rear end through bolts, and outer side auxiliary wheels are arranged on the middle lower portions of the two sides; the spring pin positioning device is arranged on the upper end face of the rear end, the picking rack and the picking rotating handle are arranged on the rear end body, and fast picking or mounting is facilitated. The anti-toppling device is simple in structure and convenient to operate, can provide an effective anti-toppling function in the moving process of the box step, remarkably reduces the safety risk of toppling of the box step, improves the safety and reliability of operation, further has the advantages of being high in adaptability and easy to maintain, and has high practical value and popularization prospects.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for overhead contact line operations, specifically an anti-tipping device for an overhead contact line ladder that can also prevent tipping during the movement of the ladder. Background Technology

[0002] Catenary ladders are indispensable auxiliary climbing tools in overhead contact line operations. However, most existing anti-tipping devices for catenary ladders only prevent tipping when the ladder is stopped, lacking effective anti-tipping measures during ladder movement. This problem seriously threatens the personal safety of workers on the platform and urgently needs to be effectively solved. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-tipping device for a work vehicle ladder, aiming to solve the problem of the ladder easily tipping over during movement, effectively reducing the safety risk of ladder overturning, and improving the safety and reliability of operations. This utility model is achieved through the following technical solution.

[0004] An anti-tipping device for a work vehicle ladder includes a device body and a main rail grabbing frame;

[0005] The main rail-grabbing frame is fixed with a fixed frame and a first main rail-grabbing wheel located within the fixed frame near its front bottom by bolts.

[0006] A connecting fixing buckle is fixedly provided on the upper middle part of the main rail gripping frame, and rail surface auxiliary wheels are fixedly provided on the outer side of the main rail gripping frame respectively, symmetrically arranged along the connecting fixing buckle;

[0007] The main rail-grabbing frame is fixed with a fixed frame and a second main rail-grabbing wheel located inside the fixed frame near its rear bottom by bolts. External auxiliary wheels are respectively provided between the middle and lower parts of the two sides of the upper and lower fixed frames.

[0008] A spring pin positioning device is provided on the upper end face near its rear end of the main rail gripping frame.

[0009] The main body at the rear end of the rail gripping frame is equipped with a pick-up rack and a pick-up rotating handle. One end of the pick-up rack located inside the rear end of the main body is connected to the fixed frame, and the part located outside the rear end of the main body meshes with a gear located at the lower end of the pick-up rotating handle.

[0010] Furthermore, the main rail-grabbing frame has an L-shaped structure.

[0011] Furthermore, the main rail-grabbing frame has a sliding groove with an annular structure at the bolts used to fix the second main body rail-grabbing wheel.

[0012] Furthermore, a detachment rotating handle connecting block is provided on the upper part of the main body at its rear end on the main rail gripping frame.

[0013] The beneficial effects of this utility model are:

[0014] This anti-tipping device for the work platform ladder effectively prevents tipping during movement by installing a main rail-grabbing frame, main rail-clamping wheels, and auxiliary wheels on the ladder. The device is simple in structure, easy to operate, and safe and reliable, significantly reducing the safety risk of ladder tipping and improving operational safety and reliability. Furthermore, it is highly adaptable and easy to maintain, making it highly practical and promising for widespread application. Attached Figure Description

[0015] Figure 1 This is a structural diagram (I) of an anti-tipping device for a work vehicle ladder according to the present invention;

[0016] Figure 2 This is a structural diagram (II) of an anti-tipping device for a work vehicle ladder according to this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0021] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Example:

[0023] The anti-tipping device for the work vehicle ladder provided by this utility model includes a device body, characterized in that:

[0024] The main body of the device includes a rail-grabbing main frame 10, a fixing frame 20 and a first main rail-grabbing wheel 21 located within the fixing frame 20 are fixed to the rail-grabbing main frame 10 near its front bottom by bolts;

[0025] A connecting fixing buckle 30 is fixedly provided on the upper middle part of the main rail grabbing frame 10, and rail surface auxiliary wheels 40 are fixedly provided on the outer side of the main rail grabbing frame 10, which are symmetrically arranged along the connecting fixing buckle 30.

[0026] A fixed frame 50 and a second main rail-clamping wheel 51 located inside the fixed frame 50 are bolted to the bottom of the rear end of the main rail-clamping frame 10. External auxiliary wheels 52 are respectively provided between the middle and lower parts of the upper and lower fixed frames 50.

[0027] A spring pin positioning device 60 is provided on the upper end face near its rear end on the main rail frame 10.

[0028] The main body at the rear end of the rail grabbing frame 10 is equipped with a pick-up rack 70 and a pick-up rotating handle 71. One end of the pick-up rack 70 located inside the rear end of the main body is connected to the fixing frame 50, and the part located outside the rear end of the main body meshes with the gear 72 located at the lower end of the pick-up rotating handle 71.

[0029] Furthermore, the anti-tipping device for the work vehicle ladder in this embodiment also has the following features:

[0030] The main rail-grabbing frame 10 has an L-shaped structure, which facilitates connection and fixation with the vehicle ladder;

[0031] The main rail-grabbing frame 10 has a sliding groove 80 with an annular structure at the bolts used to fix the second main rail-grabbing wheel 51, which facilitates the adjustment of the position of the second main rail-grabbing wheel 51 to adapt to rails of different sizes.

[0032] The main body of the rail grabbing frame 10 is provided with a detachment rotary handle connecting block 90 on the upper part of the main body at its rear end, which facilitates the installation and removal of the detachment rotary handle.

[0033] The anti-tipping device is mainly composed of core components such as the rail-grabbing main frame. The rail-grabbing main frame has an L-shaped structure, which facilitates a stable connection with the vehicle ladder. At the front bottom of the rail-grabbing main frame, a fixing frame and the first main rail-clamping wheel are fixed with bolts. These components can ensure the stability of the device on the track.

[0034] A connecting fixing buckle is provided on the upper middle part of the main rail frame, while auxiliary rail wheels are symmetrically arranged on its outer side. These auxiliary wheels help the device maintain stability during movement.

[0035] At the rear bottom of the main rail-grabbing frame, a fixing frame and a second main rail-grabbing wheel are also fixed with bolts. In addition, auxiliary wheels on the outer side are set between the middle and lower parts of the upper and lower fixing frames to further enhance the stability of the device.

[0036] To ensure stability under different operating conditions, a spring pin positioning device is installed at the upper end of the rear end of the main rail gripping frame. At the same time, a pick-up rack and its pick-up rotating handle are also installed in the main body of the rear end of the main rail gripping frame. The pick-up rack is connected to the fixed frame, and the gear at the lower end of the pick-up rotating handle meshes with the pick-up rack, which makes it easy for the operator to quickly and safely pick up or install the device when needed.

[0037] In addition, to improve the adaptability and flexibility of the device, the bolts on the main rail-grabbing frame used to fix the second main rail-grabbing wheel are provided with a sliding groove with an annular structure. This allows the position of the second main rail-grabbing wheel to be adjusted according to actual needs to adapt to rails of different sizes.

[0038] Specifically, it also includes:

[0039] In the process of making the anti-tipping device for the work vehicle ladder, the rail grabbing device was made first. According to the drawings, the components were selected, and two sets of rail grabbing devices were designed using the principle of rail slippage. They were connected to the ladder chassis above the two rails. These rail grabbing devices were fixed to the ladder chassis to ensure that the ladder is in a restrained state under any circumstances but does not affect the operation, thereby preventing overturning.

[0040] Next, a connection and fixing device for the ladder chassis was fabricated. 5mm steel wire rope and stainless steel M12 closed-type adjusting bolts (capable of withstanding 5KN of gravity) were selected, along with chassis fixing components made of 8mm thick steel plates. Insulation measures were added to ensure strength. During installation, the rail gripping device was mounted on the cylinder on the side of the ladder chassis closest to the rail, in the middle, and installed in a V-shape with the chassis fixing components. The distance between the two fixing components was 700mm. After installation, the adjustable bolts were adjusted to ensure that the force on both sides was roughly equal (i.e., the rail gripping device was in a horizontal state), and the loosening nuts at both ends of the adjusting bolts were tightened.

[0041] The above steps together constitute the key manufacturing and installation process of the anti-tipping device for the work vehicle ladder.

[0042] In summary, this anti-tipping device for the work platform ladder, through its unique design and construction, can provide effective anti-tipping function during the movement of the ladder, thereby improving the safety and reliability of the operation.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for preventing tipping over a work vehicle ladder, comprising a device body, characterized in that: Including the main rail-grabbing frame; The main rail-grabbing frame is fixed with a fixed frame and a first main rail-grabbing wheel located within the fixed frame near its front bottom by bolts. A connecting fixing buckle is fixedly provided on the upper middle part of the main rail gripping frame, and rail surface auxiliary wheels are fixedly provided on the outer side of the main rail gripping frame respectively, symmetrically arranged along the connecting fixing buckle; The main rail-grabbing frame is fixed with a fixed frame and a second main rail-grabbing wheel located inside the fixed frame near its rear bottom by bolts. External auxiliary wheels are respectively provided between the middle and lower parts of the two sides of the upper and lower fixed frames. A spring pin positioning device is provided on the upper end face near its rear end of the main rail gripping frame. The main body at the rear end of the rail gripping frame is equipped with a pick-up rack and a pick-up rotating handle. One end of the pick-up rack located inside the rear end of the main body is connected to the fixed frame, and the part located outside the rear end of the main body meshes with a gear located at the lower end of the pick-up rotating handle.

2. The anti-tipping device for a work vehicle ladder according to claim 1, characterized in that: The main rail-grabbing frame has an L-shaped structure.

3. The anti-tipping device for a work vehicle ladder according to claim 1, characterized in that: The main rail-grabbing frame has a sliding groove with an annular structure at the bolts used to fix the second main body rail-grabbing wheel.

4. The anti-tipping device for a work vehicle ladder according to claim 1, characterized in that: The main body of the rail-grabbing frame is equipped with a detachment rotating handle connecting block located on the upper part of its rear end.

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