CN210948450U

CN210948450U - Portable extension ladder

Info

Publication number: CN210948450U
Application number: CN201921559939.6U
Authority: CN
Inventors: 胡李景
Original assignee: Zhejiang Gaomai Industry And Trade Co ltd
Current assignee: Zhejiang Gaomai Industry And Trade Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-07
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to a telescopic ladder field, a portable telescopic ladder, including a plurality of levels of telescopic ladder festival, every level of telescopic ladder festival includes the ladder pole, pedal spare and telescopic connection cover, be connected with the balanced bracing piece with ground contact on the telescopic ladder festival of below, be connected with wheel one on the balanced bracing piece, telescopic connection sheathes in and is protruding to be equipped with joint spare two, telescopic connection cover has joint spare one through joint spare two joints, be connected with wheel two on the joint spare one, joint spare one includes the joint portion two with the joint of joint spare two joints and be used for connecting the wheel, wheel one and wheel two all towards the same direction.

Description

Portable extension ladder

Technical Field

The utility model relates to an extension ladder field especially relates to a portable extension ladder.

Background

The extension ladder is as one of the comparatively instrument commonly used of modern family or building site, and it is collapsible, and area is little, accomodates the convenience, but current extension ladder is comparatively heavy, comparatively labouring in handling.

Disclosure of Invention

The utility model discloses to the comparatively labouring shortcoming of extension ladder transport among the prior art, a portable extension ladder is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a portable extension ladder, including the flexible ladder festival of a plurality of levels, every flexible ladder festival includes the ladder pole, pedal spare and flexible adapter sleeve, be connected with the balanced bracing piece with ground contact on the flexible ladder festival of below, be connected with wheel one on the balanced bracing piece, the protruding joint spare two that is equipped with on the flexible adapter sleeve, flexible adapter sleeve has joint spare one through two joints of joint spare, be connected with wheel two on the joint spare one, joint spare one includes the joint portion one with two joints of joint spare and is used for being connected the joint portion two of wheel, wheel one and wheel two all move towards the same direction.

By adopting the scheme, when the extension ladder is not used, the extension ladder is laid down when the extension ladder is flat, the extension ladder is convenient to move on the ground through the first wheels and the second wheels, labor is saved, some tool boxes which are not too heavy can be placed on the extension ladder, and the extension ladder is used as a flat car, so that the extension ladder is convenient and practical.

Preferably, the first clamping piece and the second clamping piece are detachably connected.

Adopt above-mentioned scheme, connect through dismantling, can dismantle wheel two using the extension ladder, can prevent that extension ladder head end from producing when relying on the wall and skidding.

Preferably, the pedal piece is hollow tube shape, and the hole of accomodating that is used for accomodating wheel two is offered on the pedal piece, and joint portion two is C type and C type opening and is and keep away from the setting of a joint portion direction, and the protruding strip card strip that is equipped with in its C type both ends of joint portion two is offered on the pedal piece and is used for with card strip complex draw-in groove.

By adopting the scheme, the second wheel can be conveniently stored through the storage hole, and the wheel is convenient to store and is not easy to be lost when not needed.

Preferably, the second clamping piece comprises a third clamping part matched with the first clamping part and a limiting part used for limiting the transitional movement of the first clamping part.

By adopting the scheme, the limiting part is used for limiting one end of the first clamping part.

The utility model provides a portable extension ladder, its characterized in that, the last spacing subassembly that is located three spacing portions of keeping away from of joint portion of flexible coupling cover, the flexible coupling sheathes in and is located two sides of joint spare and has seted up the counter bore, spacing subassembly including locate the spring in the counter bore, locate the gag lever post in the counter bore and be used for ordering about the push rod that the gag lever post removed, set up the slotted hole that is used for dodging the push rod on the flexible coupling cover.

By adopting the scheme, the limiting component is used for keeping away from the limit of the first clamping part on one side of the limiting part.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: when not using the extension ladder, lie down when the extension ladder is flat, be convenient for the extension ladder through wheel one and wheel two and remove on the ground, both laborsaving and can also place some not too heavy toolboxes etc. on the extension ladder, use the extension ladder as the flatbed, not only convenient but also practical.

Drawings

Fig. 1 is an exploded view of a portable extension ladder section;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the second wheel at the receiving hole;

fig. 4 is a partially enlarged view at B in fig. 3.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. a ladder bar; 2. a foot pedal; 3. connecting sleeves in a shrinking manner; 4. balancing the supporting rod; 5. a first wheel; 6. a second clamping piece; 7. a first clamping piece; 8. a second wheel; 9. a first clamping part; 10. a second clamping part; 11. clamping the strip; 12. a third clamping part; 13. a limiting part; 14. a base; 15. a pivoting seat; 16. a roller; 17. a receiving hole; 18. a card slot; 19. a counter bore; 20. a spring; 21. a limiting rod; 22. a push rod; 23. a sliding slot hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

A portable extension ladder firstly refers to figures 1, 2, 3 and 4, and comprises a plurality of levels of extension ladder sections, each level of extension ladder section comprises ladder rods 1 at two sides, a pedal part 2 positioned in the middle of the two ladder rods 1 and extension connecting sleeves 3 positioned at two ends of the pedal part 2 and used for connecting the ladder rods 1 and the pedal part 2, a balance supporting rod 4 contacted with the ground is clamped on the lowermost extension ladder section, a wheel I5 is connected on one side surface of the balance supporting rod 4 through screw threads, a clamping part II 6 is convexly arranged on the extension connecting sleeves 3 at two sides of the uppermost extension ladder section, the extension connecting sleeves 3 are clamped with a clamping part I7 through the clamping part II 6, a wheel II 8 is connected on the clamping part I7 through screw threads, the clamping part I7 comprises a clamping part I9 clamped with the clamping part II 6 and a clamping part II 10 used for connecting the wheel, the clamping part I9 is in a concave shape, joint portion two 10 is C type and C type opening and is to keeping away from the setting of joint portion one 9 directions, and the inboard protruding strip card strip 11 that is equipped with in its C type both ends of joint portion two 10, joint spare two 6 including be used for with joint portion one 9 complex joint portion three 12 with be used for restricting the spacing portion 13 of joint portion one 9 transitional movement, its terminal surface of joint portion three 12 is the cylinder of T type, spacing portion 13 is located three 12 terminal surfaces of joint portion and the shape is the square that is bigger than joint portion three 12. The second wheel 8 comprises a base 14, a pivoting seat 15 rotationally connected with the base 14 and a roller 16 pivoted with the pivoting seat 15, the base 14 of the second wheel 8 is connected with one side surface of a C-shaped opening of the second clamping part 10 through a screw thread, the first clamping part 7 is detachably connected with the second clamping part 6, the pedal part 2 is in a hollow tubular shape, a containing hole 17 used for containing the second wheel 8 is formed in the pedal part 2, the containing hole 17 is slightly larger than the base 14, two clamping grooves 18 respectively matched with the two clamping strips 11 in a clamping way are formed in the pedal part 2, in the embodiment, the pedal part 2 is in a square tubular shape, the two clamping grooves 18 are respectively positioned on two opposite side surfaces of the pedal part 2, a limiting component is arranged on one side, far away from the limiting part 13, of the third clamping part 12 of the telescopic connecting sleeve 3, a counter bore 19 is arranged on one side surface, far away from the limiting part 13, of the third clamping part 12, spacing subassembly includes spring 20 in the counter bore 19, locate and be columniform gag lever post 21 in the counter bore 19 and be used for driving about the push rod 22 that gag lever post 21 removed, set up the waist hole shape sliding groove hole 23 that is used for dodging push rod 22 on the telescopic connection cover 3, spring 20 terminal surface and 19 bottom surface butts of counter bore, another terminal surface and 21 terminal surface butts of gag lever post, push rod 22 pass behind the sliding groove hole 23 with gag lever post 21 threaded connection, gag lever post 21 part stretches out counter bore 19, gag lever post 21 extension is used for a 7 spacing of keeping away from spacing 13 one side direction of spacing portion, when a 7 and a 6 joint of joint spare, wheel 5 and wheel two 8 are all towards same direction for the extension ladder.

Claims

1. The utility model provides a portable extension ladder, including the flexible ladder festival of a plurality of levels, every flexible ladder festival includes ladder pole (1), pedal spare (2) and flexible adapter sleeve (3), be connected with balanced bracing piece (4) with ground contact on the flexible ladder festival of below, a serial communication port, be connected with wheel one (5) on balanced bracing piece (4), flexible adapter sleeve (3) epirelief is equipped with joint spare two (6), flexible adapter sleeve (3) have joint spare one (7) through joint spare two (6) joint, be connected with wheel two (8) on joint spare one (7), joint spare one (7) include joint portion one (9) with joint spare two (6) joint and the joint portion two (10) that are used for connecting the wheel, wheel one (5) and wheel two (8) all face same direction.

2. The portable extension ladder of claim 1, wherein the first clamping member (7) and the second clamping member (6) are detachably connected.

3. The portable extension ladder of claim 2, wherein the foot rest (2) is hollow and tubular, the foot rest (2) is provided with a receiving hole (17) for receiving the second wheel (8), the second clamping portion (10) is C-shaped and the opening of the C-shaped is arranged in a direction away from the first clamping portion (9), the two ends of the C-shaped of the second clamping portion (10) are convexly provided with strip-shaped clamping strips (11), and the foot rest (2) is provided with clamping grooves (18) for being matched with the clamping strips (11).

4. The portable extension ladder as claimed in claim 2, wherein the second engaging member (6) includes a third engaging portion (12) for engaging with the first engaging portion (9) and a limiting portion (13) for limiting the transition movement of the first engaging portion (9).

5. The portable extension ladder as claimed in claim 4, wherein a limiting component is arranged on one side, away from the limiting part (13), of the third clamping part (12) on the extension connecting sleeve (3), a counter bore (19) is formed in one side face, located on the second clamping part (6), on the extension connecting sleeve (3), the limiting component comprises a spring (20) arranged in the counter bore (19), a limiting rod (21) arranged in the counter bore (19) and a push rod (22) used for driving the limiting rod (21) to move, and a sliding slot hole (23) used for avoiding the push rod (22) is formed in the extension connecting sleeve (3).