Foldable equipment crawling ladder

Abstract

The utility model relates to the technical field of large-scale mechanical equipment auxiliary devices, and discloses a foldable equipment ladder stand, a pedal frame body and a supporting rod are movably connected through a connecting assembly, the connecting assembly comprises a fixed pin shaft and a cotter pin, the pedal frame body and a connecting frame are fixedly installed, and the supporting rod is connected with the pedal frame body. The connecting frame and the supporting frame body are movably connected through a connecting assembly, and the rack and the supporting frame body are movably connected through a connecting assembly. A folding fixing hole and an unfolding fixing hole are formed in the supporting rod, the rack and the supporting rod are movably connected through a quick connecting assembly, the quick connecting assembly is inserted into the unfolding fixing hole during unfolding use, and the quick connecting assembly is inserted into the folding fixing hole during folding storage; during folding and storage, the connecting frame, the supporting frame body and the rack are movably connected through the quick connecting assembly, so that the whole device has the unfolding and storage functions. The elastic cotter pin is installed on the pin shaft of the quick connecting assembly, the pin shaft is prevented from falling off, before the pin shaft needs to be inserted and pulled out, the elastic cotter pin can be quickly pulled out firstly, then the pin shaft is pulled out, overall disassembly and assembly are convenient, and the operation convenience of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for large-scale mechanical equipment, in particular to a foldable equipment ladder. Background Art

[0002] When operating large-scale machinery, such as mobile heavy-duty screening plants, operators need a ladder to reach higher areas due to the equipment's height. To facilitate climbing, the ladder's height and deployment angle must be ergonomically designed. Specifically, the ladder should be low enough for the operator to easily step onto the steps, and wide enough to ensure the climbing path is unobstructed by other equipment structures. However, a low ladder height and wide deployment angle would make the overall dimensions of the equipment excessively wide and low, making it difficult to navigate narrow or raised sections during long-distance transport or short-distance movement.

[0003] Existing ladders are categorized as either welded or assembled. Welded ladders have the steps welded directly to the equipment frame, making them completely fixed and non-adjustable. The overall structure of the steps is likely to be ergonomically unsuitable, making it inconvenient for operators to climb the equipment. If the steps become damaged during use, they cannot be replaced and must be re-welded. Assembled ladders are split-piece installations, requiring them to be attached to the equipment frame when in use and completely disassembled and stored elsewhere when not in use. Furthermore, split-piece installations require the use of bolts and other fasteners, making assembly and disassembly inconvenient and time-consuming.

[0004] To this end, we propose a foldable equipment ladder. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a foldable equipment ladder.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a foldable equipment ladder, comprising a pedal frame body, the inner wall of the pedal frame body is provided with a first connecting assembly, the first connecting assembly includes a fixed pin and a cotter pin; the inner wall of the pedal frame body is movably mounted with a support rod through the first connecting assembly, the middle end of the front side of the support rod is provided with a folding fixing hole, the right side of the front side of the support rod is provided with an unfolding fixing hole, and a second quick connecting assembly is provided on the inner wall of the support rod at the unfolding fixing hole; a connecting frame is fixedly mounted on the upper end of the right side wall of the pedal frame body, so that the pedal frame body and the connecting frame become one, and a pedal frame is provided on the front side of the connecting frame A fixing hole, a second connecting component is provided on the inner wall of the connecting frame, and the structure of the second connecting component is consistent with the first connecting component; the inner wall of the connecting frame is movably installed with a support frame body through the second connecting component, and a first support frame fixing hole is opened on the front of the support frame body, and a first quick connecting component is provided on the inner wall of the support frame body at the first support frame fixing hole; a polyurethane pad is fixedly installed on the lower end of the right side wall of the support frame body, and a second support frame fixing hole is opened on the right side of the upper end of the front of the support frame body, and a third connecting component is provided on the inner wall of the support frame body at the second support frame fixing hole, and the structure of the third connecting component is consistent with the first connecting component.

[0007] Preferably, the first quick connection assembly includes a pin shaft, and the outer wall of the pin shaft is movably connected to the inner wall of the support frame body.

[0008] Preferably, an elastic cotter pin is movably engaged with the outer wall of the pin shaft.

[0009] Preferably, the structure of the second quick connection assembly is consistent with that of the first quick connection assembly.

[0010] The utility model provides a foldable equipment ladder with the following beneficial effects:

[0011] 1. This foldable equipment ladder is provided with a first quick-connect assembly and a second quick-connect assembly. The support rod is provided with a folding fixing hole and an unfolding fixing hole. The frame and the support rod are movably connected via the second quick-connect assembly. When unfolded for use, the second quick-connect assembly is inserted into the unfolding fixing hole. When folded for storage, the second quick-connect assembly is inserted into the folding fixing hole. When folded for storage, the connecting frame, the support frame body, and the frame are movably connected via the first quick-connect assembly, so that the entire device has the functions of unfolding and storing. The pins on the first and second quick-connect assemblies are both equipped with elastic cotter pins to prevent the pins from falling off. Before inserting or removing the pins, the elastic cotter pins can be quickly pulled out first, and then the pins can be pulled out. The overall disassembly and assembly are convenient, which improves the operational convenience of the entire device.

[0012] 2. This foldable equipment ladder is equipped with a polyurethane pad. The polyurethane pad is installed on the support frame body so that the support frame body will not bump against the paint surface of the frame when it contacts the frame, thereby improving the use effect of the entire device.

[0013] 3. This foldable equipment ladder is equipped with a connecting frame, which can assist the support frame body in folding and storing. When the support frame body is folded and stored, the pedal frame body can be folded and stored together, thereby improving the folding use effect of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the front side of the present utility model;

[0015] Figure 2 This is a schematic diagram of the right side wall structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of the quick connection assembly of the present utility model.

[0017] Legend: 10. Pedal frame body; 11. Support rod; 12. Folding fixing hole; 13. Unfolding fixing hole; 14. Connecting frame; 15. Pedal frame fixing hole; 16. First quick connection assembly; 17. Support frame body; 18. First support frame fixing hole; 19. Polyurethane pad; 20. Second support frame fixing hole; 21. Pin shaft; 22. Elastic cotter pin; 23. Second quick connection assembly. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, provided they do not affect the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, or the positions or location relationships in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: A foldable equipment ladder, such as Figure 1-Figure 2As shown, the pedal frame body 10 is included. The pedal frame body 10 enables the equipment operator to step on and climb. The pedal frame body 10 and the support rod 11 are hinged together by a first connecting assembly, and the two can rotate relative to each other. The first connecting assembly includes a fixed pin and a cotter pin. A folding fixing hole 12 is provided at the middle end of the front of the support rod 11, and an unfolding fixing hole 13 is provided on the right side of the front of the support rod 11. A connecting frame 14 is fixedly installed on the upper end of the right side wall of the pedal frame body 10, so that the two become one. A pedal frame fixing hole 15 is provided on the front of the connecting frame 14. The connecting frame 14 and the support frame body 17 are hinged together by a second connecting assembly, and the two can rotate relative to each other. The support frame body 17 and the frame are hinged together by a third connecting assembly, and the two can rotate relative to each other. The pedal frame body 10 and the support rod 11 are movably connected by the first connecting assembly, and the connecting frame 14 and the support frame body 17 are movably connected by the second connecting assembly, so that the entire device can be folded for use. A polyurethane pad 19 is installed on the support frame body 17 so that the support frame body 17 will not knock against the paint surface of the frame when it contacts the frame. There are two types of holes on the support rod 11 for fixing it to the frame, one hole is a folding fixing hole 12, and the other hole is an unfolding fixing hole 13. When the device is in a folded state, the folding fixing hole 12 is used to fix it to the frame, and the pedal frame fixing hole 15 and the first support frame fixing hole 18 are used to fix it to the frame. The pin shaft 21 on the first quick connection component 16 and the second quick connection component 23 are both installed with an elastic cotter pin 22 to prevent the pin shaft 21 from falling off. Before the pin shaft 21 needs to be inserted or removed, the elastic cotter pin 22 can be quickly pulled out first, and then the pin shaft 21 can be pulled out. The overall disassembly and assembly are convenient, which improves the operational convenience of the entire device.

[0025] Example 2: Based on Example 1, Figure 2 As shown, the inner wall of the connecting frame (14) is provided with a second connecting component, and the structure of the second connecting component is consistent with the first connecting component, and the inner wall of the connecting frame 14 is movably mounted with a support frame body 17 through the second connecting component; a first support frame fixing hole 18 is opened on the front of the support frame body 17, and a first quick connecting component 16 is set at the first support frame fixing hole 18 on the inner wall of the support frame body 17; a polyurethane pad 19 is fixedly installed on the lower end of the right side wall of the support frame body 17; a second support frame fixing hole 20 is opened on the right side of the upper end of the front of the support frame body 17, and a third connecting component is set at the second support frame fixing hole 20 on the inner wall of the support frame body 17, and the structure of the third connecting component is consistent with the first connecting component; by setting the polyurethane pad 19, the polyurethane pad 19 is installed on the support frame body 17, so that the support frame body 17 will not knock against the paint surface of the frame when it contacts the frame, thereby improving the use effect of the entire device.

[0026] Example 3: Based on Example 1 and Example 2, Figure 3 As shown, the first quick-connect assembly 16 includes a pin 21, the inner wall of which movably engages an elastic cotter pin 22. The structure of the second quick-connect assembly 23 is consistent with that of the first quick-connect assembly 16. In the first quick-connect assembly 16, the outer wall of the pin 21 movably connects to the inner wall of the support frame body 17. In the second quick-connect assembly 23, the outer wall of the pin 21 movably connects to the fixing hole on the frame and the inner wall of the support rod 11. The provision of the connecting frame 14 assists in the folding and storage of the support frame body 17. When folding and storing, the support frame body 17 can be folded and stored together with the pedal frame body 10, thereby improving the folding and use efficiency of the entire device.

[0027] The working principle of the present invention is as follows: the pedal frame body 10 and the support rod 11 are always hinged together by a first connecting assembly, and the two can rotate relative to each other; the pedal frame body 10 and the connecting frame 14 are fixedly installed as one, and the connecting frame 14 and the support frame body 17 are always hinged together by a second connecting assembly, and the two can rotate relative to each other; the support frame body 17 and the frame are always hinged together by a third connecting assembly, and the two can rotate relative to each other; in the unfolded state, the polyurethane pad 19 installed on the support frame body 17 is in contact with the frame, and the support rod 11 and the frame are connected together by a second quick connecting assembly 23; at this time, the pedal frame body 10, the support frame body 17 and the support rod 11 are all fixedly supported and cannot rotate, and this device can be used to climb equipment. When the device needs to be folded, the second quick connection component 23 inserted into the unfolding fixing hole 13 on the support rod 11 is pulled out. At this time, the fixed support of the pedal frame body 10, the support frame body 17 and the support rod 11 is released, and the three can rotate around their respective hinge points; the first quick connection component 16 inserted into the first support frame fixing hole 18 is pulled out, and the pedal frame body 10 is lifted upward, and the support frame body 17 and the support rod 11 move accordingly until the pedal frame fixing hole 15 and the first support frame fixing hole 18 are aligned with the fixing hole on the frame, and the first quick connection component 16 pulled out before is inserted to fix the three together; rotate the support rod 11 until the folding fixing hole 12 on the support rod 11 is aligned with the fixing hole on the frame, and the second quick connection component 23 pulled out before is inserted to fix the two together; at this point, the device enters the folding state.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the scope of the present invention. Such changes and improvements are intended to be within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable equipment ladder, comprising a step frame body (10), characterized in that: The inner wall of the pedal frame body (10) is provided with a first connecting assembly, and the first connecting assembly includes a fixed pin and a cotter pin; the inner wall of the pedal frame body (10) is movably mounted with a support rod (11) through the first connecting assembly, the middle end of the front side of the support rod (11) is provided with a folding fixing hole (12), the right side of the front side of the support rod (11) is provided with an unfolding fixing hole (13), and the inner wall of the support rod (11) is provided with a second quick connecting assembly (23) at the unfolding fixing hole (13); the upper end of the right side wall of the pedal frame body (10) is fixedly mounted with a connecting frame (14), the front side of the connecting frame (14) is provided with a pedal frame fixing hole (15), the inner wall of the connecting frame (14) is provided with a second connecting assembly, and the second connecting The structure of the assembly is consistent with that of the first connecting assembly; the inner wall of the connecting frame (14) is movably mounted with a support frame body (17) through the second connecting assembly, the front of the support frame body (17) is provided with a first support frame fixing hole (18), and a first quick connecting assembly (16) is provided on the inner wall of the support frame body (17) at the first support frame fixing hole (18); a polyurethane pad (19) is fixedly mounted on the lower end of the right side wall of the support frame body (17), a second support frame fixing hole (20) is provided on the right side of the upper end of the front of the support frame body (17), and a third connecting assembly is provided on the inner wall of the support frame body (17) at the second support frame fixing hole (20), and the structure of the third connecting assembly is consistent with that of the first connecting assembly.

2. The foldable equipment ladder according to claim 1, characterized in that: The second quick connection assembly (23) includes a pin shaft (21), and the outer wall of the pin shaft (21) is movably connected to the fixing hole on the frame and the inner wall of the support rod (11); the first quick connection assembly (16) includes a pin shaft (21), and the outer wall of the pin shaft (21) is movably connected to the inner wall of the support frame body (17).

3. The foldable equipment ladder according to claim 2, characterized in that: An elastic cotter pin (22) is movably engaged with the outer wall of the pin shaft (21).

4. The foldable equipment ladder according to claim 1, characterized in that: The structure of the second quick connection component (23) is consistent with that of the first quick connection component (16).

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