A loading ramp

Abstract

The utility model relates to railway transportation auxiliary tool technical field discloses a kind of loading ladder, including ladder body assembly, ladder body assembly is used for portable movement and use, ladder body assembly includes frame body, cross bar, foot pedal and universal wheel, frame body is symmetrically arranged between, and each frame body between is arrayed and is provided with cross bar, the end of each cross bar is fixedly connected with corresponding frame body, and foot pedal array is set between frame body, each foot pedal is fixedly connected with frame body, and the corresponding end of each frame body is fixedly connected universal wheel, in use, the ladder body frame of frame body, cross bar and foot pedal are formed, a equilateral triangle is formed in corner area, to provide sufficient stability characteristics, realize light weight by means of frame structure, and by the setting of universal wheel, avoid moving difficulty, operation is not enough flexible and portable, cannot satisfy the operation demand of high efficiency, fast, frequent movement in situ, the component in the device is by means of triangular structure, improve the stability effect of support.

Description

Technical Field

[0001] This utility model belongs to the technical field of railway transportation auxiliary tools, specifically, it relates to a loading ladder. Background Technology

[0002] In the field of railway freight loading and unloading operations, especially for loading and unloading cargo from heavy vehicles weighing hundreds of tons, operators often need to use loading ladders for their work. In existing technologies, the structural design of loading ladders is crucial for improving efficiency and safety.

[0003] Our company's original loading ladder solution used a 40mm x 40mm galvanized square steel welded frame; however, in practice, this solution was found to have a significant drawback: the overall weight of the ladder was too large, making it difficult to move and not flexible or convenient to operate, thus failing to meet the needs of efficient, fast, and frequent on-site operations.

[0004] Therefore, there is a technical need for boarding stairs that are lighter in structure and easier to move.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problems of loading stairs, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A loading ladder includes a ladder assembly for easy portability and use. The ladder assembly includes a frame, crossbars, foot pedals, and casters. The frames are symmetrically arranged, and crossbars are arranged in an array between each frame. The end of each crossbar is fixedly connected to the corresponding frame. The foot pedals are arranged in an array between the frames, and each foot pedal is fixedly connected to a frame. Casters are fixedly connected to the corresponding end of each frame.

[0008] In a preferred embodiment of the present invention, each end of the frame is inclined and the inclination direction of the ends is symmetrical, and the foot pedal is in the same inclination direction as one of the ends, and each foot pedal is provided with anti-slip holes.

[0009] In a preferred embodiment of the present invention, a first connecting block is fixedly connected to a suitable position at the bottom of each frame, a first support rod is rotatably connected to the first connecting block, and a first cone head is fixedly connected to the end of the first support rod.

[0010] In a preferred embodiment of the present invention, a second connecting block is fixedly connected to the first support rod, the second connecting block is rotatably connected to the second support rod, and a second cone head is fixedly connected to the second support rod.

[0011] In a preferred embodiment of this utility model, each frame is fixedly connected to a mounting block at its bottom, and each first support rod is fixedly connected to a locking block at its end, with the locking block engaging with the mounting block.

[0012] In a preferred embodiment of the present invention, each mounting block is provided with a sliding groove, a push rod is slidably connected in the sliding groove, a snap-fit ​​block is fixedly connected to the push rod, the snap-fit ​​block snaps into the snap-fit ​​block, and the snap-fit ​​block is elastically connected to the mounting block.

[0013] In a preferred embodiment of this utility model, each mounting block is fixedly connected to a support rod, each support rod is slidably connected to a snap-fit ​​block, and each support rod is fitted with a spring, the end of each spring being fixedly connected to the corresponding mounting block and snap-fit ​​block.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This loading ladder, in use, forms an equilateral triangle in the corner area through the ladder frame composed of the frame, crossbars and foot pedals, thereby providing sufficient stability. The frame structure achieves lightweighting, and the use of casters avoids difficulties in movement and lack of flexibility and ease of operation, thus meeting the needs of efficient, fast and frequent on-site operations.

[0016] 2. In this loading ladder, the auxiliary support part of the device uses a triangular structure to improve the stability of the support and distribute the force on the frame. Even without relying on the wall of the car, the device can be used directly in the field of use, expanding the range of environments in which it can be used, and is not limited to relying on the wall of the car for support of the middle area of ​​the device.

[0017] 3. This loading ladder uses a spring-driven locking block to tightly engage with the first support rod, thereby restricting its position and facilitating its storage. This prevents the auxiliary support components from moving freely, ensuring that the lack of restraint does not affect the use of the device.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a bottom view of the present invention;

[0022] Figure 3 This is a schematic diagram of the usage state of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure on the first support rod of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure between the first support rod and the mounting block of this utility model.

[0025] In the diagram: 1. Frame; 11. Crossbar; 12. Foot pedal; 13. Caster wheel; 2. First connecting block; 21. First support rod; 22. First cone head; 23. Locking block; 3. Second support rod; 31. Second connecting block; 32. Second cone head; 4. Mounting block; 41. Locking block; 42. Push rod; 43. Support rod; 44. Spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] Please see Figure 1-5 A loading ladder includes a ladder assembly for portable movement and use. The ladder assembly includes a frame 1, crossbars 11, foot pedals 12, and casters 13. The frame 1s are symmetrically arranged, and crossbars 11 are arranged in an array between each frame 1. The end of each crossbar 11 is fixedly connected to the corresponding frame 1. The foot pedals 12 are arranged in an array between the frame 1s, and each foot pedal 12 is fixedly connected to a frame 1. Casters 13 are fixedly connected to the corresponding end of each frame 1. In use, the ladder frame composed of the frame 1, crossbars 11, and foot pedals 12 forms an equilateral triangle in the corner area, thereby providing sufficient stability. The frame structure achieves lightweighting, and the casters 13 prevent difficulties in movement and lack of flexibility in operation, thus avoiding the inability to meet the needs of efficient, fast, and frequent on-site operations.

[0028] Each frame 1 has an inclined end, and the inclination direction of the ends is symmetrical. The foot pedal 12 has the same inclination direction as one of the ends. Each foot pedal 12 has anti-slip holes. By symmetrically inclining the ends of the frame 1, the frame 1 can be attached to the ground and the carriage wall respectively, and the frame 1 is tilted at 45 degrees. The inclination direction of the foot pedal 12 is the same as that of the end in contact with the ground, and the foot pedal 12 is in a horizontal state. This forms an equilateral triangle with the ground and the carriage wall, thereby providing stable support. While achieving portability, the stability of the device is ensured.

[0029] Each frame 1 has a first connecting block 2 fixedly connected to a suitable position at its bottom. A first support rod 21 is rotatably connected to the first connecting block 2. A first cone head 22 is fixedly connected to the end of the first support rod 21. A second connecting block 31 is fixedly connected to the first support rod 21. A second support rod 3 is rotatably connected to the second connecting block 31. A second cone head 32 is fixedly connected to the second support rod 3. After the device is brought close to the ground carriage, the first support rod 21 is unfolded, and the first cone head 22 at the bottom of the first support rod 21 contacts the ground, reducing the contact point and increasing the applied force. This increases the shear force between the first support rod 21 and the ground, making it difficult for the first support rod 21 to move. Then, the second support rod 3 is unfolded, and the second connecting block 31 and the ground are connected to the first support rod 21. Ground contact, the second connecting block 31 is similar to the first support rod 21, and the rotation of the second support rod 3 is at an obtuse angle, a large angle of rotation, forming a triangle with the frame 1, the first support rod 21 and the ground, and the first support rod 21 distributes the force on the frame 1, ensuring the stability of the frame 1. The second support rod 3 distributes the force on the first support rod 21, and achieves stable support with the help of the triangular structure. The auxiliary support part of this device improves the stability of the support with the help of the triangular structure, and distributes the force on the frame 1. Even without relying on the car wall, this device can be directly erected for use, expanding the range of environments in which it can be used, and is not limited to relying on the car wall for support in the middle area of ​​this device.

[0030] Each frame 1 has a mounting block 4 fixedly connected to its bottom, and a locking block 23 fixedly connected to the end of each first support rod 21. The locking block 23 engages with the mounting block 4. Each mounting block 4 has a sliding groove, and a push rod 42 is slidably connected within the groove. The push rod 42 is fixedly connected to a locking block 41, which engages with the locking block 23 and is elastically connected to the mounting block 4. Each mounting block 4 has a support rod 43 fixedly connected within it, and each support rod 43 is slidably connected to the locking block 41. Each support rod 43 is fitted with a spring 44, and the end of each spring 44 is fixedly connected to the corresponding mounting block 4 and locking block 41. In use, after the frame 1 is straightened, the push rod 42 is manually slid, causing the locking block 41 to separate from the locking block 23. Once the locking block 23 is no longer restrained, it is removed from the mounting block 4. The first support rod 21 is then manually flipped. After the force on the push rod 42 is released from the second support rod 3 on the first support rod 21, the support rod 43 deforms due to the compression of the locking block 41, and the force of the deformation is applied to the locking block 41. The locking block 41 is pushed back to its original position. The mounting block 4 has sufficient space for the locking block 23 to move. After the second support rod 3 and the first support rod 21 are flipped and stored, the locking block 23 is driven into the mounting block 4. The end of the locking block 23 contacts the end of the locking block 41 first. After contact, the locking block 41 is pushed inward, and the locking block 41 compresses the spring 44. The spring 44 deforms. After the locking block 23 reaches the designated position, the locking block 41 is unrestricted. The locking block 41 is pushed by the spring 44 and tightly engages with the locking block 23, thereby restricting the position of the first support rod 21. This facilitates the storage of the device and prevents the components of the auxiliary support part from moving freely. The lack of restriction will affect the use of the device.

[0031] The auxiliary support components refer to components such as the first support rod 21 and the second support rod 3.

[0032] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A loading ladder, characterized in that, include: The ladder assembly is used for portable movement and use. The ladder assembly includes a frame (1), crossbars (11), foot pedals (12) and casters (13). The frames (1) are symmetrically arranged, and crossbars (11) are arranged in an array between each frame (1). The end of each crossbar (11) is fixedly connected to the corresponding frame (1). The foot pedals (12) are arranged in an array between the frames (1). Each foot pedal (12) is fixedly connected to the frame (1), and casters (13) are fixedly connected to the corresponding end of each frame (1).

2. The loading ladder according to claim 1, characterized in that, Each of the frame bodies (1) is inclined at one end, and the inclination direction of the ends is symmetrical. The foot pedal (12) is inclined in the same direction as one of the ends, and each foot pedal (12) is provided with anti-slip holes.

3. The loading ladder according to claim 1, characterized in that, Each of the frame (1) is fixedly connected to a first connecting block (2) at a suitable position at the bottom. A first support rod (21) is rotatably connected to the first connecting block (2). A first cone head (22) is fixedly connected to the end of the first support rod (21).

4. The loading ladder according to claim 3, characterized in that, A second connecting block (31) is fixedly connected to the first support rod (21), and a second support rod (3) is rotatably connected to the second connecting block (31). A second cone head (32) is fixedly connected to the second support rod (3).

5. The loading ladder according to claim 1, characterized in that, Each frame (1) is fixedly connected to a mounting block (4) at its bottom, and each first support rod (21) is fixedly connected to a locking block (23) at its end, with the locking block (23) engaging with the mounting block (4).

6. The loading ladder according to claim 5, characterized in that, Each of the mounting blocks (4) is provided with a sliding groove, and a push rod (42) is slidably connected in the sliding groove. A snap-fit ​​block (41) is fixedly connected to the push rod (42). The snap-fit ​​block (41) snaps into the snap-fit ​​block (23), and the snap-fit ​​block (41) is elastically connected to the mounting block (4).

7. The loading ladder according to claim 6, characterized in that, Each mounting block (4) is fixedly connected with a support rod (43), each support rod (43) is slidably connected to the snap-fit ​​block (41), and each support rod (43) is fitted with a spring (44), the end of each spring (44) is fixedly connected to the corresponding mounting block (4) and snap-fit ​​block (41).

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