CN219910615U

CN219910615U - Combined type cat ladder

Info

Publication number: CN219910615U
Application number: CN202321337156.XU
Authority: CN
Inventors: 吴小德; 耿丽; 旋木兰
Original assignee: Dongguan Yongqiang Automobile Manufacturing Co Ltd
Current assignee: Dongguan Yongqiang Automobile Manufacturing Co Ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-10-27
Anticipated expiration: 2033-05-29

Abstract

The utility model relates to the technical field of ladders, and particularly discloses a combined type ladder. The novel lifting device comprises two main beams and a plurality of pedals arranged between the two main beams, wherein mortises extending along the axial direction of the two main beams are formed in opposite sides of the two main beams, plug-in connectors are arranged at the upper ends and the lower ends of the mortises, mounting blocks are arranged on the pedals and are plugged into the mortises, supporting blocks are arranged between the adjacent pedals, the supporting blocks are plugged into the mortises, the end parts of the mounting blocks are abutted with the end parts of the supporting blocks, upper end fixing frames are fixed at the upper ends of the main beams, the upper end fixing frames seal the plug-in connectors at the upper ends of the mortises, lower end fixing frames are fixed at the lower ends of the main beams, and the lower end fixing frames seal the plug-in connectors at the lower ends of the mortises. The combined type cat ladder replaces the existing cat ladder with a welded structure, and improves the production efficiency of the cat ladder; the length of girder, supporting shoe can be changed, the mode of footboard and supporting shoe quantity is increased or reduced, the cat ladder that is fit for the demand is assembled fast, the advantage of specific nimble regulation.

Description

Combined type cat ladder

Technical Field

The utility model relates to the technical field of ladders, and particularly discloses a combined type ladder.

Background

In large-sized automobiles such as van automobiles, tank trucks and trucks, a ladder stand is generally arranged on the automobile due to the fact that the automobile body is higher, so that passengers can get on or off the automobile or climb to the automobile roof to carry out maintenance and other operations.

The common structure of cat ladder on the vehicle adopts welded type, is that parts such as handrail, footboard, connection fixed plate adopt welded mode to make up together, and this kind of welded type cat ladder not only installs production efficiency low, produces the deformation easily after welding the cat ladder moreover, only can wholly demolish the replacement after the part damages, and the maintenance degree of difficulty is big, with high costs, and the cat ladder of welded type is once processing is accomplished, wants the height of changing the cat ladder, also extremely difficult.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a combined type cat ladder.

The utility model discloses a combined type cat ladder, which adopts the following technical scheme:

the utility model provides a combination formula cat ladder, includes two girders and sets up a plurality of pedals between two girders, two the tongue-and-groove that extends along its axial is seted up to opposite one side of girder, just the tongue-and-groove upper and lower both ends are equipped with the interface, be equipped with the installation piece on the footboard, the installation piece peg graft to in the tongue-and-groove, upper and lower neighbor be equipped with the supporting shoe between the footboard, the supporting shoe is pegged graft in the tongue-and-groove, the tip of installation piece with supporting shoe tip butt, the girder upper end is fixed with upper end fixed frame, upper end fixed frame will the tongue-and-groove upper end grafting mouth is sealed, the lower extreme of girder is fixed with the lower extreme fixed frame, the lower extreme fixed frame will the tongue-and-groove lower extreme grafting mouth is sealed.

Preferably, the upper end fixing frame and the lower end fixing frame are fixed with the main beam through bolts.

Preferably, the lower end fixing frame comprises a bottom pedal and mounting grooves arranged at two ends of the bottom pedal, and the bottom end of the main beam is inserted into the mounting grooves.

Preferably, the supporting blocks are embedded in the mortises, and the surfaces of the supporting blocks are in smooth transition with the surfaces of the main beams.

Preferably, the upper end fixing frame comprises a mounting plate and handrails arranged on the mounting plate, bottoms of two ends of each handrail are hollow and are provided with openings, and the upper ends of the main beams are inserted into the handrails.

Preferably, the top end of the mounting block of the topmost pedal is abutted with the bottom end of the armrest.

Preferably, the main beam is arranged in a hollow mode, and a partition plate is arranged in the main beam and serves as a groove wall of the mortise.

Preferably, the pedal is provided with anti-slip groove lines.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. according to the technical scheme, the support blocks, the pedals and the main beams of the crawling ladder are connected through the mortise and tenon structures, the mounting is rapid, welding is not needed between the components, the crawling ladder with the existing welding structure is replaced, the production efficiency of the crawling ladder is improved, parts of the components can be partially disassembled and replaced after being damaged, and the maintenance cost and the maintenance difficulty are reduced;

2. according to the scheme, the length of the main beam can be changed according to the requirements of the ladders with different heights, and the ladders suitable for the requirements can be quickly assembled by increasing or reducing the number of the pedals and the supporting blocks;

3. according to the scheme, the control of the distance between adjacent pedals can be realized by changing the length of the supporting blocks according to requirements.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a combined ladder stand according to the present embodiment;

fig. 2 is a schematic diagram of a split structure of a combined ladder stand according to the embodiment;

fig. 3 is an enlarged view of fig. 2 a.

Reference numerals illustrate:

1. a main beam; 11. a tongue and groove; 12. an interface; 13. a partition plate; 2. a pedal; 21. a mounting block; 3. a support block; 4. a lower end fixing frame; 41. a bottom pedal; 42. a mounting groove; 5. an upper end fixing frame; 51. a mounting plate; 52. an armrest; 6. and (5) a bolt.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

A combined ladder stand, referring to fig. 1-3, comprises two main beams 1, a plurality of pedals 2, supporting blocks 3, an upper end fixing frame 5 and a lower end fixing frame 4.

Referring to fig. 2 and 3, mortises 11 are formed on opposite sides of the two main beams 1, the mortises 11 extend along the axial direction of the main beams 1, the mortises 11 can be T-shaped grooves, dovetail grooves or grooves with various shapes with limiting function, and the upper end and the lower end of each mortice 11 are provided with inserting ports 12. As the preferable scheme, the main beam 1 is hollow, the partition 13 is arranged in the main beam 1, and the partition 13 is used as the groove bottom of the mortise 11, so that the main beam has enough supporting force and has the advantage of light dead weight.

Referring to fig. 2, the pedal 2 is provided with anti-slip recessed lines, one side of the pedal 2 is fixed with a mounting block 21, two ends of the mounting block 21 are matched with the shape of the mortise 11, and the mounting block 21 is inserted into the mortise 11 from the end insertion port 12 of the main beams 1, so that the pedal 2 is limited between the two main beams 1. And a supporting block 3 matched with the shape of the mortise 11 is further arranged between the upper pedal 2 and the lower pedal 2, the supporting block 3 is inserted into the mortise 11, the end part of the mounting block 21 is abutted with the end part of the supporting block 3, and the supporting block 3 plays a role in spacing and supporting the adjacent pedals 2. As a preferable scheme, the supporting blocks 3 are embedded into the mortises 11, and the surfaces of the supporting blocks 3 and the surfaces of the main beams 1 are in smooth transition, so that personnel can better hold the main beams for climbing.

Referring to fig. 2, the lower end fixing frame 4 includes a bottom pedal 41 and mounting grooves 42 provided at both ends of the bottom pedal 41, and the bottom end of the girder 1 is inserted into the mounting grooves 42, and the lower end fixing frame 4 is fixed to the girder 1 by bolts 6, thereby closing the lower end insertion port 12 of the girder 1, and the bottom end of the bottommost supporting block 3 is abutted with the bottom of the mounting groove 42.

Referring to fig. 2, the upper end fixing frame 5 includes a mounting plate 51 for fixing the ladder stand to the car body, and a handrail 52 connected to the mounting plate 51, the handrail 52 being for facilitating a person to climb to the top of the ladder stand. The shape of the armrest 52 may be arc or right angle, in this embodiment, the armrest 52 is a hollow arc tube, the bottom of two ends of the armrest 52 is opened, the upper end of the main beam 1 is inserted into the armrest 52, and the upper end fixing frame 5 is fixed with the main beam 1 by the bolt 6, so as to seal the insertion port 12 at the upper end of the main beam 1, and the top end of the topmost mounting block 21 is abutted with the bottom end of the armrest 52.

This cat ladder of scheme adopts tenon fourth of twelve earthly branches structure to fix footboard 2, supporting shoe 3 on girder 1 for the cat ladder can assemble fast, has replaced current welded structure cat ladder, has improved cat ladder production efficiency, and, can change girder 1 length according to the cat ladder demand of co-altitude, through the mode that increases or reduce footboard 2 and supporting shoe 3 quantity, can assemble out the cat ladder that is fit for the demand fast, in addition, the interval of footboard 2 is adjusted by supporting shoe 3, can be according to the demand, through the length that changes supporting shoe 3, realize the control of adjacent footboard 2 interval, when the partial subassembly damages after long-term use, also can dismantle the subassembly of damage alone and carry out the local change. The combined type cat ladder of this scheme has assembly efficiency height, advantage that can nimble regulation.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims

1. The utility model provides a combination formula cat ladder, includes two girders and sets up a plurality of pedals between two girders, its characterized in that, two the tongue-and-groove that extends along its axial is seted up to opposite one side of girder, just the tongue-and-groove upper and lower both ends are equipped with the interface, be equipped with the installation piece on the footboard, the installation piece peg graft to in the tongue-and-groove, upper and lower neighbor be equipped with the supporting shoe between the footboard, the supporting shoe peg graft in the tongue-and-groove, the tip of installation piece with supporting shoe tip butt, the girder upper end is fixed with upper end fixed frame, upper end fixed frame will tongue-and-groove upper end interface is sealed, the lower extreme of girder is fixed with lower extreme fixed frame, the lower extreme fixed frame will tongue-and-groove lower extreme interface is sealed.

2. The modular ladder of claim 1, wherein the upper and lower end brackets are secured to the main beam by bolts.

3. The combined ladder stand of claim 1, wherein the lower end fixing frame comprises a bottom pedal and mounting grooves formed in two ends of the bottom pedal, and the bottom end of the main beam is inserted into the mounting grooves.

4. The modular ladder of claim 1, wherein the support blocks are embedded in the mortises, the support block surfaces smoothly transitioning with the main beam surfaces.

5. The combined ladder stand according to claim 1, wherein the upper end fixing frame comprises a mounting plate and handrails arranged on the mounting plate, bottoms of two ends of the handrails are hollow and are provided with openings, and the upper ends of the main beams are inserted into the handrails.

6. The modular ladder of claim 5, wherein a top end of the mounting block of the topmost step is in abutment with a bottom end of the armrest.

7. The combined crawling ladder of claim 1, wherein the main beams are arranged in a hollow mode, and partition plates are arranged in the main beams and serve as groove walls of the mortises.

8. The combination ladder of claim 1, wherein the tread is provided with anti-slip groove lines.