Segmented assembly type ladder of crawler-type aerial vehicle

Abstract

The utility model relates to the technical field of high-altitude vehicle maintenance, in particular to a segmented assembly type ladder of a crawler-type high-altitude vehicle, which comprises a pedal ladder, two bolts and nuts, the pedal ladder comprises an upper-layer pedal and a lower-layer pedal, two ends of the upper-layer pedal are respectively and movably connected with the lower-layer pedal through the corresponding bolts, and the upper-layer pedal is connected with the lower-layer pedal through the nuts. The upper-layer pedal comprises an upper-layer flat plate, upper-layer side plates are fixedly connected to the two ends of the flat plate, arc-shaped through grooves are formed in the outer surfaces of the two upper-layer side plates, and a transverse plate is fixedly connected to one sides of the two upper-layer side plates. The folding pedal ladder has the advantages that the lower-layer pedal can be folded to the upper-layer pedal, enough space is reserved for drawing of the battery bin, sectional assembly and light-weight installation are achieved, the folding function is achieved, maintenance man hours are shortened conveniently, and meanwhile the folding pedal ladder can meet the requirements of the crawler-type high-altitude vehicle pedal ladder for the industry related regulations.

Description

Technical Field

[0001] This utility model relates to the technical field of aerial work platform maintenance, and in particular to a segmented assembly ladder for a tracked aerial work platform. Background Technology

[0002] Maintenance regulations for tracked aerial work platforms require that the gap between the first layer of the ladder and the ground should not exceed 400mm. Some existing ladders are too low, causing them to obstruct the battery compartment of the equipment. During maintenance, the entire ladder needs to be disassembled, which is more complicated and not conducive to the rapid maintenance of the battery compartment. Utility Model Content

[0003] To reduce operational complexity and facilitate quick repair of the battery compartment, this utility model provides a segmented, assembled ladder for a tracked aerial work platform.

[0004] The present invention provides a segmented, assembled ladder for a tracked aerial work platform, which adopts the following technical solution:

[0005] A segmented, assembled ladder for a tracked aerial work platform includes a step ladder, two bolts, and nuts. The step ladder includes an upper step and a lower step, with the two ends of the upper step being movably connected to the lower step via corresponding bolts.

[0006] By adopting the above technical solution, the lower step can be folded onto the upper step, leaving enough space for the battery compartment to be pulled out, realizing segmented assembly, lightweight installation, and folding function, which facilitates shortening maintenance time. At the same time, it can also meet the relevant industry regulations for tracked aerial work platform steps, greatly reducing maintenance costs, helping to reduce operational complexity, and facilitating quick maintenance of the battery compartment.

[0007] Preferably, the upper pedal includes an upper plate, both ends of which are fixedly connected to upper side plates. The outer surfaces of the two upper side plates are provided with arc-shaped through grooves, and a horizontal plate is fixedly connected to one side of the two upper side plates.

[0008] Preferably, the lower pedal includes a lower plate, and lower side plates are fixedly connected to both sides of the lower plate. Circular through grooves are formed on the outer surfaces of both lower side plates.

[0009] Preferably, both of the arc-shaped through slots are connected to the corresponding circular through slots, both of the bolts pass through the interior of the corresponding arc-shaped through slots and the corresponding circular through slots, and both of the nuts are threaded to the outer surface of the corresponding bolts, with one side of each of the two nuts respectively engaged with the inner side of the corresponding upper side plate.

[0010] By adopting the above technical solution, the bolt passes through both the upper and lower side plates. By locking the bolt with the nut thread, the upper and lower side plates are fixed, thereby fixing the upper and lower pedals. When the lower pedal needs to be rotated, the nut only needs to be loosened a few threads without completely removing the nut, and the lower pedal can be rotated. After rotation, the nut is tightened again.

[0011] Preferably, two rotating shafts are fixedly connected to the outer sides of the two upper side plates, and two rotating grooves are formed on the outer surfaces of the two lower side plates. The four rotating shafts are evenly sleeved inside the corresponding rotating grooves.

[0012] By adopting the above technical solution, when the battery compartment does not need to be inspected, the lower plate is located below the upper plate. At this time, the two lower rotating shafts on the upper side plate are sleeved in the rotating groove. When the lower pedal is rotated, none of the four rotating shafts are located in the rotating groove. When the battery compartment is inspected and the rotation is completed, the lower plate is located above the upper plate. At this time, the two upper rotating shafts on the upper side plate are sleeved in the rotating groove. The lower pedal is locked with bolts and nuts to prevent the lower pedal from rotating directly when the bolt threads are stripped.

[0013] Preferably, the surfaces of the two lower side plates are provided with right-angled trapezoidal through slots, and each pair of corresponding rotating slots are located on both sides of the corresponding right-angled trapezoidal through slot.

[0014] By adopting the above technical solution, the position of the lower step can be determined by the acute angle of the right trapezoid. This allows workers monitoring the tracked aerial work platform from the side to know whether the step is being stepped on or off, or whether the platform is being used to inspect the battery compartment.

[0015] Preferably, an L-shaped connecting plate overlaps one side of the horizontal plate.

[0016] By adopting the above technical solution, the step ladder is connected to the tracked aerial work platform via an L-shaped connecting plate.

[0017] In summary, this utility model has the following beneficial technical effects:

[0018] 1. This device is equipped with an upper step and a lower step. If the existing step ladder is made according to the specified size, it will block the battery compartment. Maintenance requires disassembling the entire step ladder, which is highly complicated. This device, while ensuring compliance with industry regulations, takes advantage of its segmented and foldable design to allow the battery compartment to be viewed without disassembling the step ladder, which greatly reduces maintenance costs.

[0019] 2. Under normal use, this device is a double-layered platform, namely an upper platform and a lower platform. When maintenance is required, the lower platform can be rotated around the bolt and folded onto the upper platform, leaving sufficient space for the battery compartment to be pulled out, realizing segmented assembly, lightweight installation, and folding function, which facilitates shortening maintenance time. At the same time, it also meets the relevant industry regulations for tracked aerial work platform ladders. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a tracked aerial work platform after the installation of a segmented, assembled ladder.

[0021] Figure 2 This is a schematic diagram of the structure of a segmented, assembled ladder of a tracked aerial work platform when it is flipped.

[0022] Figure 3 This is a schematic diagram of the structure of a tracked aerial work platform after the segmented assembly ladder has been flipped up.

[0023] Figure 4 yes Figure 2 Enlarged view of the local structure at point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Step ladder; 110. Upper step; 120. Lower step; 111. Upper flat plate; 112. Upper side plate; 113. Arc-shaped through groove; 114. Horizontal plate; 121. Lower flat plate; 122. Lower side plate; 123. Circular through groove;

[0026] 200, Bolt; 300, Nut; 400, Rotating Shaft; 500, Rotating Groove; 600, Right-Angle Trapezoidal Through Groove. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0028] This utility model discloses a segmented, assembled ladder for a tracked aerial work platform.

[0029] Reference Figure 1 , Figure 3The system includes a step ladder 100, two bolts 200, and a nut 300. The step ladder 100 includes an upper step 110 and a lower step 120. The two ends of the upper step 110 are movably connected to the lower step 120 by corresponding bolts 200. After installation, the step ladder 100 conforms to the specified dimensions of a ladder. During use, it may obstruct the battery compartment. However, by taking advantage of its segmented and foldable design, that is, after the lower step 120 is flipped over, a part of it is still folded with the upper step 110, so the battery compartment can be viewed without disassembling the step ladder 100, which greatly reduces maintenance costs.

[0030] Reference Figure 1 , Figure 2 , Figure 3 The upper pedal 110 includes an upper plate 111. Both ends of the upper plate 111 are fixedly connected to upper side plates 112. The outer surfaces of the two upper side plates 112 are provided with arc-shaped through grooves 113. Bolts can move up and down inside the arc-shaped through grooves 113, thereby causing the lower side plate 122 to move up and down outside the upper side plate 112, changing the position of the rotating groove 500. A horizontal plate 114 is fixedly connected to one side of the two upper side plates 112.

[0031] Reference Figure 1 , Figure 2 , Figure 3 The lower pedal 120 includes a lower plate 121. Both sides of the lower plate 121 are fixedly connected to lower side plates 122. The outer surfaces of the two lower side plates 122 are provided with circular through grooves 123. Bolts 200 pass through the interior of the circular through grooves 123 and the arc-shaped through grooves 113 to connect the lower pedal 120 and the upper pedal 110.

[0032] Reference Figure 1 , Figure 2 , Figure 4 Both arc-shaped through slots 113 are connected to the corresponding circular through slots 123. Both bolts 200 pass through the interior of the corresponding arc-shaped through slots 113 and the corresponding circular through slots 123. Both nuts 300 are threaded to the outer surface of the corresponding bolts 200. One side of each nut 300 is engaged with the inner side of the corresponding upper side plate 112. The bolts 200 pass through both the upper side plate 112 and the lower side plate 122. By locking the nuts 300 with threads, the upper side plate 112 and the lower side plate 122 are fixed, thereby fixing the upper pedal 110 and the lower pedal 120. When the lower pedal 120 needs to be rotated, only the nuts 300 need to be loosened by a few threads. Without completely removing the nuts 300, the lower pedal 120 can be rotated. After rotation, the nuts 300 are tightened again, and the lower plate 121 can be fixed above the upper plate 111.

[0033] Reference Figure 1 , Figure 2 , Figure 3 Two rotating shafts 400 are fixedly connected to the outer sides of the two upper side plates 112, and two rotating grooves 500 are opened on the outer surface of the two lower side plates 122. When the four rotating shafts 400 are evenly distributed, they are sleeved inside the corresponding rotating grooves 500. When the rotating shafts 400 are inside the rotating grooves 500, together with the bolts 200, they can restrict the rotation of the lower side plates 122 and enhance the connection between the upper pedal 110 and the lower pedal 120.

[0034] Reference Figure 2 Both lower side panels 122 have right-angled trapezoidal slots 600 on their surfaces. Workers operating the step ladder 100 can determine whether they are currently on the upper step 110 or the lower step 120 by the acute angle of the right-angled trapezoidal slot 600. This prevents other workers from being confused about the upper step 110 and the lower step 120 after the step ladder 100 has been rotated. Each pair of corresponding rotation slots 500 are located on both sides of the corresponding right-angled trapezoidal slot 600.

[0035] Reference Figure 1 An L-shaped connecting plate overlaps one side of the horizontal plate 114. The L-shaped connecting plate has through holes, through which bolts 200 can pass and nuts 300 can be used to connect it to the tracked aerial work platform, thereby enabling the step ladder 100 to be connected to the tracked aerial work platform.

[0036] The implementation principle of the segmented assembly ladder of the tracked aerial work platform according to this utility model embodiment is as follows:

[0037] 1. Bolt 200 passes through the upper side plate 112 and the lower side plate 122. Bolt 200 is locked at the bottom of the arc-shaped through groove 113. At this time, the two rotating shafts 400 are sleeved inside the rotating groove 500. The lower step 120 is close to the ground. Workers normally step on the lower step 120 and the upper step 110 to climb the ladder.

[0038] 2. When inspecting the battery compartment, the lower plate 121 needs to be rotated above the upper plate 111. Simply loosen the nut 300 by a few screws, without completely removing the nut 300, and slide the two lower side plates 122 upwards to a certain position until the interior of the rotating groove 500 is disengaged from the rotating shaft 400. After the two lower side plates 122 rotate without touching the rotating shaft 400, rotate the two lower side plates 122 to 180°, and then slide the lower side plates 122 down until the bolt 200 is located at the bottom inside the arc-shaped through groove 113. Finally, tighten the nut 300.

[0039] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A segmented assembly type ladder of a caterpillar aerial platform, characterized in that: The utility model provides a pedal ladder (100), two bolts (200) and nut (300), the pedal ladder (100) includes upper layer pedal (110) and lower layer pedal (120), and both ends of upper layer pedal (110) are respectively connected with lower layer pedal (120) movably through corresponding bolt (200).

2. The sectionalized assembled ladder of aerial platform according to claim 1, characterized in that: The upper layer pedal (110) includes upper layer flat plate (111), both ends of the upper layer flat plate (111) are fixedly connected with upper layer side plate (112), the outer surfaces of the two upper layer side plates (112) are both provided with arc through slot (113), and one side of the two upper layer side plates (112) is fixedly connected with horizontal plate (114).

3. The sectionalized assembled ladder of aerial platform according to claim 2, characterized in that: The lower layer pedal (120) includes lower layer flat plate (121), both sides of the lower layer flat plate (121) are fixedly connected with lower layer side plate (122), and the outer surfaces of the two lower layer side plates (122) are both provided with circular through slot (123).

4. The sectionalized assembled ladder of the aerial platform according to claim 3, characterized in that: The two arc through slots (113) are communicated with corresponding circular through slots (123).

5. The sectionalized assembled ladder of the aerial platform according to claim 4, characterized in that: The two bolts (200) are both penetrated into the interiors of corresponding arc through slots (113) and corresponding circular through slots (123), the two nuts (300) are respectively threadedly connected to the outer surfaces of corresponding bolts (200), and one side of the two nuts (300) is respectively clamped to the inner side of corresponding upper layer side plate (112).

6. The sectionalized assembled ladder of the aerial platform according to claim 5, characterized in that: The outer sides of the two upper layer side plates (112) are both fixedly connected with two rotating shafts (400), the outer surfaces of the two lower layer side plates (122) are both provided with two rotating grooves (500), and the four rotating shafts (400) are all separately sleeved into the interiors of corresponding rotating grooves (500).

7. The sectionalized assembled ladder of the aerial platform according to claim 6, characterized in that: The surfaces of the two lower layer side plates (122) are both provided with right-angled trapezoidal through slots (600), and every two corresponding rotating grooves (500) are respectively located at the two sides of corresponding right-angled trapezoidal through slots (600).

8. The sectionalized assembled ladder of the aerial platform according to claim 7, characterized in that: One side of the horizontal plate (114) is overlapped with L-shaped connecting plate.

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