Ladder climbing trolley for climbing carriage
By designing a ladder cart including the car body, frame, casters, ladder support rod and limit rod, the safety and operational convenience of existing car box ladders are solved, and efficient and safe car box climbing operations are achieved.
Patent Information
- Application Number
- CN202422147346.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing vehicle ladders have safety hazards, inconvenient operation, complex structure and inconvenient installation, resulting in low work efficiency and certain risks, which cannot meet the needs of efficient operations.
A ladder trolley consisting of the body of the car and a folding inner ladder is designed, including a frame, castors, ladder support rod and limit rod. The castors have a self-locking function. The folding inner ladder can be flipped into the car box and fixed by the limit rod to ensure safety and convenience.
It improves the versatility and safety of vehicle ladders, simplifies operating procedures, improves work efficiency, and reduces operational risks.
Smart Images

Figure CN223048743U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of body assembly operations, and specifically relates to a ladder trolley for climbing a carriage. Background Art
[0002] Existing carriage ladders have problems such as potential safety hazards (such as being prone to sliding and being insecure), inconvenient operation, complex structure, and inconvenient installation. When in use, the working efficiency is relatively low and there is a certain degree of danger, causing certain trouble to the operators during assembly; with the development of body assembly technology and the increasing application of vehicles, higher requirements are put forward for carriage climbing devices, and existing carriage ladders cannot meet the needs of efficient operations. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies, and provide a ladder trolley for climbing a carriage.
[0004] The technical solution provided by the utility model is: a ladder trolley for climbing a carriage, which is characterized in that it consists of a trolley body and a folding internal ladder; the trolley body consists of a frame and casters, the frame is provided with casters below, and one side of the frame is provided with a ladder support rod and a limiting rod; the ladder support rod is movably connected with the folding internal ladder, and the folding internal ladder can be flipped into the carriage body; the limiting rod limits the folding internal ladder.
[0005] Further, there are a total of 4 casters, two fixed casters and two swivel casters, and the casters can be self-locked.
[0006] Further, the casters are connected to the frame by screws; the folding internal ladder is connected to the ladder support rod by a first pin shaft.
[0007] Further, a through hole is provided in the upper part of the limiting rod, and a second pin shaft is inserted into the through hole. When the folding internal ladder is retracted, it is limited by the second pin shaft.
[0008] The beneficial effects of the utility model are as follows: 1. There are a total of 4 casters at the lower part of the trolley body, including two fixed casters and two swivel casters. The casters have a self-locking function. Workers can push the trolley body to move. After moving to the designated position, lock the casters, and the trolley can be fixed, which can meet the use requirements of different positions and improve the versatility of the trolley; 2. The folding internal ladder can be flipped into the carriage, and operators can enter and exit the carriage through the folding ladder; 3. When the folding internal ladder is retracted, it is limited by the second pin shaft to prevent the folding ladder from flipping off the trolley body when the trolley is manually pushed, playing a role in safety protection. Brief Description of the Drawings
[0009] Figure 1 It is the front structural schematic diagram of the utility model;
[0010] Figure 2 is a schematic side view of the present utility model;
[0011] Figure 3 Schematic diagram of the usage state of the present utility model.
[0012] In the figure: 1 trolley body, 2 folding internal ladder, 3 frame, 4 casters, 5 ladder support rod, 6 limit rod, 7 screw, 8 first pin shaft, 9 second pin shaft, 10 carriage body. Specific embodiments
[0013] For better understanding and implementation, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0014] As shown in Figure 1 、 2 、3, a ladder trolley for climbing a carriage is composed of a trolley body 1 and a folding internal ladder 2; the trolley body 1 is composed of a frame 3 and casters 4, the casters 4 are installed under the frame 3 through screws 7, there are 4 casters 4 in total, divided into two fixed wheels and two universal wheels, the casters 4 have a self-locking function, the trolley body can be manually pushed to move, and after moving to the designated position, the casters are locked, and the trolley can be fixed, which can meet the usage requirements of different positions and improve the versatility of the trolley; a ladder support rod 5 and a limit rod 6 are installed on one side of the frame 3; the folding internal ladder 2 is connected to the ladder support rod 5 through a first pin shaft 8, the folding internal ladder 2 can be flipped into the carriage body 10, and the operator can enter and exit the carriage through the folding internal ladder 2; a through hole is opened in the upper part of the limit rod 6, and a second pin shaft 9 is inserted into the through hole. When the folding internal ladder 2 is retracted, it is limited by the second pin shaft 9 to prevent the folding internal ladder 2 from flipping off the trolley body 1 when the trolley is manually pushed, playing a role in safety protection.
[0015] For the ladder trolley for climbing a carriage of the present utility model, first, according to the assembled carriage body, the trolley is manually moved to a suitable position. After boarding the trolley body, the second pin shaft is removed, the folding internal ladder is flipped into the carriage body, and the operator can enter the carriage through the folding internal ladder for operation. After the operation is completed, through the folding internal ladder, climb out of the carriage to the trolley body, flip the folding internal ladder out of the carriage, fall onto the limit rod, insert the second pin shaft, and limit the folding internal ladder on the trolley body; the operator gets off the trolley body to complete the entire operation process.
[0016] The above is only a part of the embodiments of the present utility model, rather than all embodiments; it should be noted that the above embodiments should not be regarded as a limitation of the present utility model, and the protection scope of the present utility model should be subject to the scope defined by the claims. All other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
Claims
1. A ladder trolley for climbing a vehicle box, characterized in that: The trolley body (1) is composed of a trolley body (1) and a foldable inner ladder (2); the trolley body (1) is composed of a frame (3) and casters (4); the frame (3) is provided with casters (4) below; one side of the frame (3) is provided with a ladder support rod (5) and a limit rod (6); the ladder support rod (5) is movably connected to the foldable inner ladder (2); the foldable inner ladder (2) can be flipped into the vehicle body; the limit rod (6) limits the foldable inner ladder (2).
2. A ladder trolley for climbing a vehicle box according to claim 1, characterized in that: There are four casters (4) in total, two fixed wheels and two universal wheels, and the casters (4) can be self-locking.
3. A ladder trolley for climbing a vehicle box according to claim 1, characterized in that: The casters (4) are connected to the frame (3) via screws (7); and the folding inner ladder (2) is connected to the ladder support rod (5) via a first pin shaft (8).
4. A ladder trolley for climbing a vehicle box according to claim 1, characterized in that: A through hole is provided on the upper portion of the limiting rod (6), and a second pin shaft (9) is inserted into the through hole. When the foldable inner ladder (2) is folded up, the second pin shaft (9) is used for limiting.