CN218206555U

CN218206555U - Telescopic self-locking ladder stand device

Info

Publication number: CN218206555U
Application number: CN202220615586.2U
Authority: CN
Inventors: 王小品; 黄祾; 陈广
Original assignee: Shanghai Xcmg Intelligent Technology Co ltd; Jiangsu XCMG Construction Machinery Institute Co Ltd
Current assignee: Shanghai Xcmg Intelligent Technology Co ltd; Jiangsu XCMG Construction Machinery Institute Co Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2023-01-03
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a telescopic auto-lock cat ladder device belongs to cat ladder technical field, and the use that aims at solving among the prior art cat ladder receives the operating space restriction, adjusts inconvenient, poor stability's technical problem. The ladder stand comprises a track group and a ladder stand, wherein the track group is fixedly arranged, the ladder stand can slide in the track group, the track group is provided with two tracks which are arranged in parallel, a self-locking mechanism is arranged on the outer side of the track on one side, and the self-locking mechanism can enable the ladder stand to slide upwards in the track group without obstruction, limit the downward sliding stroke of the ladder stand and fix the ladder stand. The utility model provides high availability factor, convenience and the stability of cat ladder are suitable for various operating space and use, and application scope is wide.

Description

Telescopic self-locking ladder stand device

Technical Field

The utility model relates to a telescopic auto-lock cat ladder device belongs to cat ladder technical field.

Background

At present, a pull-type folding ladder is additionally arranged at the bottom of a chassis, a driver pulls the ladder outwards through a pull rod and turns downwards, the whole ladder is turned over by the force of a manipulator, the operation is very inconvenient, a large operation space is needed, and the turning range is limited by the space; and the ladder stand after overturning is easy to swing and has poor stability. Because underground roadway width and terrain clearance are not fixed numerical value, the cat ladder is arranged in the upset of cockpit bottom, and the condition that can not open the cat ladder, unable get off the bus probably appears, consequently need have one kind and can adapt to the cat ladder that facilitates the use in different width roadways.

Disclosure of Invention

An object of the utility model is to overcome not enough among the prior art, provide a telescopic auto-lock cat ladder device, make the cat ladder can unhindered upward and restrict the cat ladder gliding stroke in the track through setting up self-locking mechanism to reach and make things convenient for the cat ladder to receive and release, adapt to not equidimension operating space, improve the purpose of cat ladder stability.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

a telescoping self-locking ladder device comprising: the ladder stand comprises a rail group and a ladder stand, wherein the rail group is fixedly arranged, the ladder stand can slide in the rail group, the rail group is provided with two rails which are arranged in parallel, a self-locking mechanism is arranged on the outer side of the rail on one side, and the self-locking mechanism can enable the ladder stand to slide upwards in the rail group without obstruction, limit the downward sliding stroke of the ladder stand and fix the ladder stand.

Furthermore, a plurality of self-locking limiting grooves are arranged on the outer side face of the crawling ladder at intervals, and the self-locking mechanism can be clamped into and rotated out of the self-locking limiting grooves through a rotatable self-locking bolt.

Further, the self-locking mechanism includes: the fixed setting is in the self-locking mechanism body that has the cavity of track side is fixed pivot in the self-locking mechanism body cavity is established the epaxial rotatable auto-lock tongue is established, passes hole groove on the self-locking mechanism body with the hand pole that the auto-lock tongue is connected, and set up the inside restriction of self-locking mechanism body cavity auto-lock tongue pivoted auto-lock limiting plate.

Further, the self-locking limiting grooves are arranged at equal intervals.

Furthermore, the positions of the self-locking limiting grooves are correspondingly arranged on the side face of the ladder stand.

The self-locking mechanism is arranged on the outer side of the bottom of the track on one side.

The telescopic self-locking ladder stand device further comprises an upper cross beam and a lower cross beam which are respectively arranged at two ends of the track group.

Furthermore, the cat ladder top is provided with spacing board on the cat ladder, spacing board can block on the cat ladder on the bottom end rail.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

1. the ladder stand of the telescopic self-locking ladder stand device can slide in the track, the ladder stand can slide in the track without hindrance through the self-locking mechanism and can limit the ladder stand to slide downwards in multiple steps, the folding and unfolding can be completed by a single person, the adjusting efficiency and the convenience of the ladder stand can be effectively improved, the ladder stand device is not influenced by the width of a roadway and the height above the ground, and the ladder stand device can be suitable for various operating spaces and has high stability;

2. the utility model discloses a telescopic auto-lock cat ladder device can be applicable to about various needs are adjusted, and uses extensive applicability to the limited cockpit of spatial dimension.

Drawings

Fig. 1 is a schematic view of a telescopic self-locking ladder stand device of the present invention;

FIG. 2 is an exploded view of the retractable self-locking ladder device of the present invention;

FIG. 3 is an exploded view of the self-locking mechanism of the present invention;

fig. 4 is a partial view of the self-locking mechanism and the self-locking limiting groove of the present invention.

In the figure:

1. an upper cross beam; 2. a track set; 3. climbing a ladder; 4. a self-locking mechanism; 5. a lower cross beam; 6. a limiting plate 6 is arranged on the crawling ladder; 301. a self-locking limit groove; 401 self-locking mechanism body; 402. a rotating shaft; 403. a self-locking bolt; 404. a hand rocker; 405. a self-locking limit plate; 501. a lower limiting plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example one

As shown in fig. 1-4, the telescopic self-locking ladder stand device provided by the utility model mainly comprises: the device comprises an upper cross beam 1, a track group 2, a ladder stand 3, a self-locking mechanism 4 and a lower cross beam 5; the ladder stand 3 can slide up and down on the track group 2, and the self-locking mechanism 4 can enable the ladder stand to slide up in the track group without obstruction and can adjust and block the sliding down.

The fixed track group 2 comprises two parallel tracks, the tracks are provided with U-shaped grooves, the ladder stand 3 adopts a round tube ladder stand, and the ladder stand 3 is arranged between the two tracks and can slide in the U-shaped grooves; a plurality of auto-lock spacing grooves 301 have been seted up on the outside of cat ladder 3 one side, auto-lock spacing groove 301 can supply auto-lock mechanism 4 to block into from the spring bolt, thereby restriction cat ladder 3 gliding position on the track group, set up for the equidistance interval between a plurality of auto-lock spacing grooves 301, can set up the quantity of auto-lock spacing groove 301 and the distance between the auto-lock spacing groove according to the in-service use demand, in this embodiment, the design cat ladder is flexible for 5 grades, can select to set up auto-lock spacing groove 301 and correspond position department at the footboard with cat ladder 3.

Self-locking mechanism 4 goes into the spacing hole of auto-lock on the cat ladder through rotatable certainly spring bolt card and fixes the sliding position of cat ladder, and self-locking mechanism 4 includes: the self-locking mechanism comprises a self-locking mechanism body 401, a rotating shaft 402, a self-locking tongue 403, a hand lever 404 and a self-locking limit plate 405; the self-locking mechanism body 401 is fixed at the bottom of a track on one side of the track set 2, a cavity is arranged inside the self-locking mechanism body 401, the rotating shaft 402 is vertically fixed inside the self-locking mechanism body 401, the self-locking tongue 403 is sleeved on the rotating shaft 402 and can rotate around the rotating shaft 402, a hole groove penetrating through the inside and the outside of the self-locking mechanism body is formed in the surface of the self-locking mechanism body 401, the hand-operated rod 404 penetrates through the hole groove from the outside to be connected with the self-locking tongue 403 in the cavity of the self-locking mechanism body 401, and the hand-operated rod 404 can be shaken to rotate the self-locking tongue 403 so that the self-locking tongue 403 can rotate out and be clamped into the self-locking limiting groove 301; the self-locking bolt 403 comprises a hollow sleeve which can be sleeved on the rotating shaft 402, a connecting rod fixed at one end of the sleeve and a locking bolt which is fixed on the side surface of the sleeve and staggered with the connecting rod by a certain angle, the connecting rod is used for being connected with a hand rocker 404, and the locking bolt is used for being clamped into the self-locking limiting groove 301; the self-locking limiting plate 405 is fixed in the cavity of the self-locking mechanism body 401, is arranged at a distance below the rotating shaft 402, can limit the self-locking bolt 403 to continue to rotate downwards after rotating to the horizontal position, and supports the force of the ladder stand 3 acting on the self-locking bolt, so that the telescopic position of the ladder stand is fixed, and the ladder stand 3 is limited from sliding downwards; when the ladder stand 3 slides upwards, the self-locking tongue 403 can rotate upwards around the rotating shaft 402 and further rotate out of the self-locking limiting groove 301, so that the ladder stand 3 can slide upwards in the track without hindrance.

Can hang the cockpit main part with track group 2 snap-on in secret single track in this embodiment, also can fix the both ends of track group 2 respectively on entablature 1 and bottom end rail 5 to will through entablature 1 the utility model discloses a telescopic auto-lock cat ladder device installs on the cockpit that secret single track hung.

Example two

The difference between this embodiment and the first embodiment is that the upper ladder limiting plate 6 is arranged on the pedal at the top of the ladder stand 3, the lower cross beam 5 comprises two lower limiting plates 501 vertically arranged between two rails, and the upper ladder limiting plate 6 is clamped on the lower limiting plates 501 when the ladder stand 3 slides down to the tail end of the rails, so that the ladder stand 3 can be prevented from sliding down the rails.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a telescopic auto-lock cat ladder device, characterized by includes: the crawling ladder comprises a track group (2) fixedly arranged, and a crawling ladder (3) capable of sliding in the track group (2), wherein the track group (2) is provided with two parallel tracks, a self-locking mechanism (4) is arranged on the outer side of the track on one side, the self-locking mechanism (4) can enable the crawling ladder (3) to slide upwards in the track group (2) without obstruction, limit the gliding stroke of the crawling ladder (3), and fix the crawling ladder (3).

2. The telescopic self-locking ladder stand device as claimed in claim 1, wherein a plurality of self-locking limiting grooves (301) are arranged on the outer side surface of the ladder stand (3) at intervals, and the self-locking mechanism (4) can be clamped into and rotated out of the self-locking limiting grooves (301) through a rotatable self-locking bolt.

3. A telescopic self-locking ladder device according to claim 2, characterized in that the self-locking mechanism (4) comprises: the fixed setting is in self-locking mechanism body (401) that has the cavity of track side fixes pivot (402) in the self-locking mechanism body cavity, cover establish rotatable auto-lock tongue (403) on pivot (402) pass the hole groove on self-locking mechanism body (401) with hand pole (404) that the auto-lock tongue is connected, and set up and be in the inside restriction of self-locking mechanism body cavity auto-lock tongue pivoted auto-lock limiting plate (405).

4. A telescopic self-locking ladder stand device according to claim 2 or 3, wherein the self-locking limiting grooves (301) are arranged at equal intervals.

5. The telescopic self-locking ladder stand device as claimed in claim 4, wherein the self-locking limiting grooves (301) are correspondingly arranged on the side surface of a pedal of the ladder stand.

6. A telescopic self-locking ladder device according to any one of claims 1, 2, 3 and 5, characterized in that the self-locking mechanism (4) is arranged outside the bottom of one side rail.

7. A telescopic self-locking ladder stand device according to any one of claims 1, 2, 3 and 5, characterized by further comprising an upper cross beam (1) and a lower cross beam (5) which are respectively arranged at two ends of the track group (2).

8. A telescopic self-locking ladder stand device as claimed in claim 7, characterized in that a ladder stand upper limiting plate (6) is arranged at the top of the ladder stand (3), and the ladder stand upper limiting plate (6) can be clamped on the lower cross beam (5).