CN219119140U

CN219119140U - Portable telescopic ladder

Info

Publication number: CN219119140U
Application number: CN202223461050.9U
Authority: CN
Inventors: 王自卫
Original assignee: Shengbo Rui Household Products Suzhou Co ltd
Current assignee: Shengbo Rui Household Products Suzhou Co ltd
Priority date: 2022-12-24
Filing date: 2022-12-24
Publication date: 2023-06-02
Anticipated expiration: 2032-12-24

Abstract

The utility model relates to the technical field of articles for daily use, in particular to a portable telescopic ladder, which comprises a supporting ladder, an elevating ladder and a fixed box, wherein the front end of the supporting ladder is connected with the elevating ladder in a sliding way, the upper side of the inside of the supporting ladder is rotationally connected with a transmission gear, the front end of the transmission gear is connected with a driven toothed plate in a meshed way, and the driven toothed plate is fixedly connected with the elevating ladder.

Description

Portable telescopic ladder

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a portable telescopic ladder.

Background

Along with the development of society, the application to the ladder is more extensive, and the ladder is daily life apparatus, and this instrument is by two long thick poles to do the limit, and the middle cross is fit for climbing the horizontal pole for climbing, and the ladder divide into lift list ladder and lift double ladder, and wherein the aluminium alloy ladder is comparatively extensive, mainly because the aluminium alloy ladder is the preparation of adopting high strength aluminium alloy material, has light in weight, high in strength's characteristics, has made things convenient for constructor's operation of ascending a height greatly.

In the prior art, under the condition that a ladder has a telescopic function, complicated repeated clamping is needed for telescopic adjustment, so that the use convenience of the ladder is reduced; and when the ladder is used, the anti-toppling mechanism is not arranged on the lateral direction, so that the lateral safety of the ladder cannot be ensured after personnel climb, and the use safety of the ladder is reduced.

Disclosure of Invention

The present utility model is directed to a portable telescopic ladder for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a portable scalable ladder, includes supporting ladder, companion ladder and fixed box, the front end sliding connection who supports the companion ladder has the companion ladder, the inside upside of supporting the companion ladder rotates and is connected with drive gear, drive gear's front end meshing is connected with driven pinion rack, fixed connection between driven pinion rack and the companion ladder, the left and right sides end downside of supporting the companion ladder all rotates and is connected with the swivelling tube, the inboard screwed connection of swivelling tube has two-way screw rod, two-way screw rod's lower extreme outside screwed connection has the lift sleeve, the lower extreme rotation of lift sleeve is connected with the connector, the outer end rotation of connector is connected with the side fagging.

Preferably, the front end of the inner side of the supporting ladder is provided with a limiting chute.

Preferably, the right-hand member upside fixedly connected with fixed case of supporting ladder, the front end upside of fixed case rotates and is connected with first carousel, the rear end fixedly connected with worm of first carousel, rotate between worm and the fixed case and be connected with, the lower extreme meshing of worm is connected with the worm wheel, rotate between worm wheel and the fixed case and be connected with, fixed connection between worm wheel and the drive gear.

Preferably, the outside of the rear end of the elevator is rotationally connected with a limiting roller, and the limiting roller is in rolling connection with the supporting elevator.

Preferably, a rotating block is fixedly connected to the middle position of the bidirectional screw.

Preferably, the middle position of the lateral supporting plate is spirally connected with an adjusting screw, the upper end of the adjusting screw is fixedly connected with a second turntable, the lower end of the adjusting screw is rotationally connected with a positioning toothed plate, and the positioning toothed plate is in sliding connection with the lateral supporting plate.

Preferably, the number of the lateral supporting plates is two, and the lateral supporting plates are symmetrically arranged about the central axis of the supporting ladder.

Preferably, the number of the transmission gears is two, and the transmission gears are symmetrically arranged about the central axis of the support ladder.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the transmission gear, the worm and the limiting roller, the limiting roller is utilized to limit the elevator and the supporting ladder, and meanwhile, the elevator is prevented from being greatly worn due to up-down movement, and meanwhile, the worm wheel can drive the transmission gear to rotate through rotating the worm, so that the driven toothed plate can drive the elevator to move up and down, the telescopic performance of the ladder can be realized through the moving effect of the elevator, and the rapid telescopic operation of the ladder can be realized only through rotating the first rotating disc, thereby avoiding the influence on the use convenience of the ladder due to complex operation;

2. according to the utility model, through the arranged rotating pipe, the bidirectional screw and the adjusting screw, the bidirectional screw can drive the lifting sleeve to rotate by rotating the rotating pipe, and the lifting sleeve can be subjected to position adjustment by rotating the bidirectional screw, so that the lateral supporting plate can be attached to the ground, and the supporting plate can move up and down by rotating the adjusting screw, so that the toothed plate can be inserted into the ground, the lateral support of a ladder is realized, the phenomenon of tilting of the ladder is avoided, and the use safety of the ladder is ensured.

Drawings

FIG. 1 is a schematic view of the overall mounting structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of FIG. 1 at A in accordance with the present utility model;

FIG. 3 is a top view of the mounting structure of the support ladder and elevator of the present utility model;

fig. 4 is a right cross-sectional view of the mounting structure of the stationary box and the first turntable of the present utility model.

In the figure: 1. a supporting ladder; 2. an elevator; 3. a transmission gear; 4. a driven toothed plate; 5. a rotary tube; 6. a bidirectional screw; 7. lifting the sleeve; 8. a connector; 9. a lateral bracing plate; 10. limiting sliding grooves; 11. a fixed box; 12. a first turntable; 13. a worm; 14. a worm wheel; 15. limiting idler wheels; 16. a rotating block; 17. adjusting a screw; 18. a second turntable; 19. and positioning the toothed plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment 1 referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a portable scalable ladder, including supporting ladder 1, companion ladder 2 and fixed box 11, the front end sliding connection who supports ladder 1 has companion ladder 2, the inside upside rotation that supports ladder 1 is connected with drive gear 3, the front end meshing of drive gear 3 is connected with driven pinion 4, fixed connection between driven pinion 4 and companion ladder 2, spacing spout 10 has been seted up to the inboard front end that supports ladder 1, the right-hand member upside fixedly connected with fixed box 11 of supporting ladder 1, the front end upside rotation of fixed box 11 is connected with first carousel 12, the rear end fixedly connected with worm 13 of first carousel 12, rotate between worm 13 and the fixed box 11 and be connected with worm wheel 14, rotate between worm wheel 14 and the fixed box 11 and be connected with drive gear 3, the rear end outside rotation of companion ladder 2 is connected with spacing gyro wheel 15, roll connection between spacing gyro wheel 15 and the supporting ladder 1, the quantity of drive gear 3 has two, the center pin symmetry setting about supporting ladder 1, when the ladder is used, through the messenger's worm wheel 13 can make the effect of carrying out the effect that can drive the step that can drive down by the drive gear 13 and can realize the effect that can realize the step ladder 2 through the effect that can take and the effect of the complex step ladder 2 through the rotation of the worm wheel 13, and can realize the effect that can realize the effect of moving down the step ladder 2 through the effect of the lift 1 through the worm wheel 13, and can realize the effect of the realization is realized and can realize the step ladder 2 through the effect of the lift and can be realized and can be down in the step down the step ladder 2.

Example 2: referring to fig. 1-2, the difference between the present embodiment and embodiment 1 is that: the left and right sides of supporting ladder 1 all rotates and is connected with swivelling joint 5, the inboard screwed connection of swivelling joint 5 has bi-directional screw rod 6, the lower extreme outside screwed connection of bi-directional screw rod 6 has lift sleeve 7, the lower extreme rotation of lift sleeve 7 is connected with connector 8, the outer end rotation of connector 8 is connected with side bracing plate 9, the intermediate position department fixedly connected with dwang 16 of bi-directional screw rod 6, the intermediate position department screwed connection of side bracing plate 9 has adjusting screw 17, the upper end fixedly connected with second carousel 18 of adjusting screw 17, the lower extreme rotation of adjusting screw 17 is connected with location pinion rack 19, sliding connection between location pinion rack 19 and the side bracing plate 9, the quantity of side bracing plate 9 has two, side bracing plate 9 sets up about the center pin symmetry of supporting ladder 1, after the ladder is placed, make bi-directional screw rod 6 can drive lift sleeve 7 through the rotation to the rotation of turning block 16, thereby make lift 7 can carry out position adjustment to the rotation of bi-directional screw rod 6, so that side bracing plate 9 can laminate, and can make the ladder rotate down through the second carousel 18, the realization of adjusting screw rod 17, can prevent the phenomenon of falling down the ladder, thereby the realization of the realization is to the side bracing plate, the realization is inclined to the ground, the safety of the ladder can be rotated through the second carousel 18.

The working flow is as follows: this device does not adopt any power to supply power when using, when the ladder uses, make worm 13 can rotate through the rotation to first carousel 12, make worm wheel 14 can drive gear 3 through the rotation to worm 13 and rotate, so that driven pinion rack 4 can drive lift 2 and reciprocate, and then can realize the flexible performance of ladder through the removal effect of lift 2, and only need can realize the quick flexible to the ladder through the rotation to first carousel 12, avoid carrying out complicated operation and influence the use convenience of ladder, and utilize limiting roller 15's effect can carry out spacing processing to lift 2 and supporting ladder 1, avoid lift 2 to reciprocate and cause great wearing and tearing simultaneously, and place the back to the ladder, make bi-directional screw 6 can drive lift sleeve 7 through the rotation to rotating tube 5, and make bi-directional screw 6 can rotate through the rotation to rotating block 16, thereby make lift sleeve 7 can carry out the position adjustment through the rotation to bi-directional screw 6, so that side bracing plate 9 can laminate ground, and can guarantee to incline the ladder through the rotation regulation of second carousel 18, thereby make the bracing plate can take place to incline the phenomenon, the realization side bracing plate can incline the ground, the realization side bracing plate can be inclined down, the safety is guaranteed, the ladder is placed, the safety is realized, the ladder is used, the safety is easy, and the safety is convenient, and the safety is easy.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable scalable ladder, includes supporting ladder (1), companion ladder (2) and fixed case (11), its characterized in that: the front end sliding connection who supports ladder (1) has companion ladder (2), the inside upside of supporting ladder (1) rotates and is connected with drive gear (3), the front end meshing of drive gear (3) is connected with driven pinion rack (4), fixed connection between driven pinion rack (4) and companion ladder (2), the left and right sides end downside of supporting ladder (1) all rotates and is connected with slewing pipe (5), the inboard screwed connection of slewing pipe (5) has bidirectional screw (6), the lower extreme outside screwed connection of bidirectional screw (6) has lift sleeve (7), the lower extreme rotation of lift sleeve (7) is connected with connector (8), the outer end rotation of connector (8) is connected with side fagging (9).

2. A portable and retractable ladder according to claim 1, wherein: the front end of the inner side of the supporting ladder (1) is provided with a limiting chute (10).

3. A portable and retractable ladder according to claim 1, wherein: the right-hand member upside fixedly connected with fixed case (11) of supporting ladder (1), the front end upside rotation of fixed case (11) is connected with first carousel (12), the rear end fixedly connected with worm (13) of first carousel (12), rotate between worm (13) and fixed case (11) and be connected, the lower extreme meshing of worm (13) is connected with worm wheel (14), rotate between worm wheel (14) and fixed case (11) and be connected, fixed connection between worm wheel (14) and drive gear (3).

4. A portable and retractable ladder according to claim 1, wherein: the outer side of the rear end of the elevator (2) is rotationally connected with a limiting roller (15), and the limiting roller (15) is in rolling connection with the supporting ladder (1).

5. A portable and retractable ladder according to claim 1, wherein: the middle position of the bidirectional screw rod (6) is fixedly connected with a rotating block (16).

6. A portable and retractable ladder according to claim 1, wherein: the middle position of the lateral supporting plate (9) is spirally connected with an adjusting screw (17), the upper end of the adjusting screw (17) is fixedly connected with a second rotary table (18), the lower end of the adjusting screw (17) is rotationally connected with a positioning toothed plate (19), and the positioning toothed plate (19) is in sliding connection with the lateral supporting plate (9).

7. A portable and retractable ladder according to claim 1, wherein: the number of the lateral supporting plates (9) is two, and the lateral supporting plates (9) are symmetrically arranged about the central axis of the supporting ladder (1).

8. A portable and retractable ladder according to claim 1, wherein: the number of the transmission gears (3) is two, and the transmission gears (3) are symmetrically arranged about the central axis of the supporting ladder (1).