Sliding ladder stand adaptive to multiple working conditions

Abstract

The invention discloses a sliding ladder stand adaptive to multiple working conditions. The sliding ladder stand comprises a fixed ladder fixed to a mechanical equipment rack and a movable ladder arranged on the fixed ladder. Clamping grooves with different heights are formed in the movable ladder, and the length of the movable ladder downwards extending out of the bottom of the movable ladder is adjusted by clamping the movable ladder in the clamping grooves with different heights. The passing performance of machine construction is improved, and the user can get on and off the vehicle conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to a walking mechanical equipment ladder, in particular to a multi-working-condition adaptive sliding ladder. BACKGROUND

[0002] The milling machine is a special mechanical equipment for highway and urban road maintenance operation, mainly applied to the excavation and repair of asphalt concrete surface layer of highway, airport, wharf and parking lot, the removal of rut, crack, pimple and pavement marking of asphalt pavement, and the milling of roughness and surface layer of cement pavement.

[0003] When the milling machine is working and stopping, the distance between the operation platform and the ground is the working depth of the machine. The traditional fixed ladder can only meet one of the working and stopping conditions. When the ladder meets the construction requirements during working, the lowest step of the ladder is more than 700mm away from the ground during stopping, which is not convenient for getting on and off the vehicle. If the ladder height is suitable for getting on and off the vehicle during stopping, the ladder may collide with the ground or construction waste during working. SUMMARY

[0004] The present application provides a multi-working-condition adaptive sliding ladder, which can adjust the length of the ladder quickly and conveniently to balance the passability of the mechanical equipment and the convenience of getting on and off the vehicle.

[0005] Technical scheme: The multi-working-condition adaptive sliding ladder comprises a fixed ladder fixed on the rack of a mechanical equipment and a movable ladder arranged on the fixed ladder. The movable ladder is provided with different height clamping grooves, and the length of the bottom of the movable ladder is adjusted by clamping the grooves of different heights.

[0006] Further, the fixed ladder comprises two side plates, and a plurality of steps are arranged between the side plates to form a multi-layer ladder structure.

[0007] Further, the two side plates are provided with clamping grooves, and the clamping grooves comprise two different height clamping positions which are in communication with each other. A clamping shaft is arranged on the movable ladder and clamped in the clamping groove. The height position of the movable ladder is switched by switching the clamping shaft in the different height clamping positions.

[0008] Further, the clamping grooves are arranged between every two steps respectively, and the lower clamping position of the clamping groove is flush with the lower step.

[0009] Further, the step flush with the lower clamping position of the clamping groove is a split structure arranged at the middle interval, and when the clamping shaft is located in the lower clamping position, the clamping shaft is also located at the middle interval of the step.

[0010] Furthermore, the movable ladder includes ladder rods arranged at intervals, the interval of which is greater than the width of the fixed ladder, the clamping shaft is arranged between the ladder rods, and the bottom of the ladder rods is fixed by a movable step.

[0011] Furthermore, the ladder rod is provided with a support ear, and shaft sleeves are respectively provided at both ends of the clamping shaft and installed on the support ear by bolts. When the movable ladder moves up and down, the shaft sleeves roll in the clamping groove.

[0012] Furthermore, the ladder rods are provided with handrails.

[0013] Beneficial effect: Compared with the prior art, the advantages of the present invention are: when the mechanical equipment is running and stopped, the clamping shaft of the movable ladder can be flexibly adjusted to the high and low clamping points of the clamping slot, which not only improves the passing performance of the machine construction, but also takes into account the convenience of users getting on and off the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the fixed ladder and the movable ladder of the present invention; Figure 2 This is a schematic diagram of the card shaft of the present invention being located at a high position in the card slot; Figure 3 This is a schematic diagram of the card shaft of the present invention being located at the lower position of the card slot. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 The multi-condition adaptive sliding ladder shown in the figure includes a fixed ladder 1 fixed to the mechanical equipment frame and a movable ladder 2 arranged on the fixed ladder 1. The movable ladder 2 is provided with slots of different heights, and the movable ladder 2 can be adjusted by locking in the slots at different heights to extend downward from the bottom of the movable ladder 2.

[0017] Its specific manifestations are: The fixed ladder 1 includes two side panels 101 , with a plurality of steps 102 provided between the side panels 101 to form a multi-layer ladder structure. This embodiment uses three layers of steps.

[0018] The two side panels 101 are correspondingly provided with a slot 103, which includes two mutually connected slots at different heights. The movable ladder 2 is provided with a slot shaft 201 which is locked in the slot 103. The height position of the movable ladder 2 can be switched by switching the slot shaft 201 at different heights.

[0019] The slots 103 are respectively provided between every two steps 102 , and the lower position of the slots 103 is flush with the lower step.

[0020] The step 102 flush with the lower position of the slot 103 is a split structure with a middle interval. When the clamping shaft 103 is located at the lower position, the clamping shaft 103 is also placed at the middle interval of the step 102 .

[0021] The movable ladder 2 includes ladder rods 202 arranged at intervals, the interval of which is greater than the width of the fixed ladder 1 . The clamping shaft 201 is arranged between the ladder rods 202 , and the bottom of the ladder rods 202 is fixed by a movable step 207 .

[0022] The ladder rod 202 is provided with a lug 203 , and the two ends of the clamping shaft 201 are respectively provided with a shaft sleeve 204 and are installed on the lug 203 by a bolt 205 . When the movable ladder 2 moves up and down, the shaft sleeve 204 rolls in the clamping groove 103 .

[0023] A handrail 206 is provided on the ladder bar 202, which serves as a handrail for getting on and off the vehicle and a handle for operating the movable ladder 2.

[0024] When the card shaft 103 is located at the high card point of the card slot, as shown in FIG. Figure 2 As shown, when the card shaft 103 is located at the low card point of the card shaft, as shown in FIG. Figure 3 shown.

Claims

1. A sliding ladder with multi-working-condition adaptability, characterized by: It comprises a fixed ladder (1) fixed on a mechanical equipment frame and a movable ladder (2) arranged on the fixed ladder (1); The movable ladder (2) is provided with slots at different heights, and the movable ladder (2) can adjust the length of the bottom of the movable ladder (2) extending downward by the slots at different heights.

2. The multi-working-condition adaptable sliding ladder according to claim 1, characterized in that: The fixed ladder (1) comprises two side panels (101), and a plurality of steps (102) are provided between the side panels (101), forming a multi-layer ladder structure.

3. The multi-working-condition adaptive sliding ladder according to claim 2, characterized in that: The two side panels (101) are provided with corresponding card slots (103), and the card slots (103) include two mutually connected card positions at different heights. The movable ladder (2) is provided with a card shaft (201) that is locked in the card slots (103), and the height position of the movable ladder (2) is switched by switching the card shaft (201) at different card positions at different heights.

4. The multi-working-condition adaptive sliding ladder according to claim 3, characterized in that: The card slot (103) is respectively provided between every two steps (102), and the lower position of the card slot (103) is flush with the lower step.

5. The multi-working-condition adaptive sliding ladder according to claim 4, characterized in that: The step (102) flush with the low position of the card slot (103) is a split structure arranged at a middle interval. When the card shaft (103) is located at the low position, the card shaft (103) is simultaneously placed at the middle interval of the step (102).

6. The multi-working-condition adaptive sliding ladder according to claim 3, characterized in that: The movable ladder (2) comprises ladder rods (202) arranged at intervals, the intervals of which are greater than the width of the fixed ladder (1); the clamping shaft (201) is arranged between the ladder rods (202); and the bottoms of the ladder rods (202) are fixed by movable steps (207).

7. The multi-working-condition adaptive sliding ladder according to claim 6, characterized in that: The ladder rod (202) is provided with a support ear (203), and shaft sleeves (204) are respectively provided at both ends of the clamping shaft (201) and are installed on the support ear (203) through bolts (205). When the movable ladder (2) moves up and down, the shaft sleeves (204) roll in the clamping groove (103).

8. The multi-working-condition adaptive sliding ladder according to claim 1, characterized in that: The ladder bar (202) is provided with a handrail (206).

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