CN210509017U

CN210509017U - Ladder guardrail device of ascending a height convenient to adjust

Info

Publication number: CN210509017U
Application number: CN201920951971.2U
Authority: CN
Inventors: 杨栋梁
Original assignee: Xi'an Xinshuo Electric Power Technology Co ltd
Current assignee: Xi'an Xinshuo Electric Power Technology Co ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-05-12
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a conveniently-adjusted climbing ladder guardrail device, which comprises a climbing ladder, a guardrail and an adjusting connecting sheet, wherein the adjusting connecting sheet is symmetrically fixed at the top end of the climbing ladder; the guardrail is movably arranged at the top end of the ascending ladder through an adjusting connecting sheet; the adjusting connecting piece is provided with a plurality of hook grooves which are distributed at equal intervals along the longitudinal direction, the outer parts of the hook grooves are provided with corresponding open type hooks, and the hook parts of the hooks face upwards; an adjusting pin shaft is arranged on the guardrail and can be embedded into the hook grooves at different positions; the device can be operated only by pulling upwards, is simple and convenient to operate, has small operation action space and can be operated on the ladder; the number of the connecting points is increased from the past 1 to 2, the stress is more dispersed, the strength is higher, and the protectiveness is stronger; when the ladder is stored, the ladder completely coincides with the original structure of the ladder, and the space is not occupied; the opening height is adjustable in multiple stages.

Description

Ladder guardrail device of ascending a height convenient to adjust

Technical Field

The utility model belongs to the technical field of the equipment of ascending a height, in particular to can attach at the collapsible barrier device of equipment of ascending a height such as all ladders, single ladder, brake pull rod, extension ladder, double ladder, insulating ladder of ascending a height, concretely relates to ladder barrier device of ascending a height convenient to adjust.

Background

As in fig. 1, the prior art solution employs a flip-open design. There is fixing bearing at the ladder top of ascending a height, and the guardrail is folding at ordinary times, turns up during the use.

The existing scheme has the following defects or shortcomings:

1. the turning-up action occupies large space, so that the turning-up operation can be only carried out on the ground, and the turning-up operation cannot be carried out in the ascending process;

2. stress concentration is easy to occur in the connection of the bearings, so that the strength is reduced;

3. the space below the ladder is large when the ladder is folded, and the ladder cannot be installed on ladders with all configurations;

4. the height of opening is fixed height, can not adjust, for this reason we propose a ladder guardrail device of ascending a height that is convenient for adjust.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ladder barrier device ascends a height convenient to adjust to it is big to solve the action occupation space that turns up that proposes in the above-mentioned background art, leads to can only opening on ground, can not open operation, bearing connection and appear stress concentration easily ascending a height, and it is big to lead to intensity reduction, take the below space when packing up, and the height that can not install on the ladder of all configurations, open is fixed height, problem unadjustable.

In order to achieve the above object, the utility model provides a following technical scheme: a climbing ladder guardrail device convenient for adjustment, which comprises a climbing ladder, a guardrail and an adjusting connecting sheet, wherein,

the adjusting connecting pieces are symmetrically fixed at the top end of the ascending ladder;

the guardrail is movably arranged at the top end of the ascending ladder through an adjusting connecting sheet;

the adjusting connecting piece is provided with a plurality of hook grooves which are distributed at equal intervals along the longitudinal direction, the outer parts of the hook grooves are provided with corresponding open type hooks, and the hook parts of the hooks face upwards;

and the guardrail is provided with an adjusting pin shaft, and the adjusting pin shaft can be embedded into the hook grooves at different positions.

Preferably, the adjusting connecting piece is further provided with a stabilizing rail groove which is longitudinally distributed, and the guardrail is further fixed with a stabilizing pin shaft corresponding to the stabilizing rail groove.

Preferably, the stabilizing pin shaft can be embedded into the stabilizing rail groove and can move along the stabilizing rail groove.

Preferably, the contact surface between the hook and the lower hook groove is an arc transition surface.

Preferably, still include elastic component, elastic component includes spacing post of spring, reset spring and activity lug, movable groove has been seted up on the guardrail surface, the activity lug is fixed adjust the round pin axle head face, just the activity lug can imbed with reciprocating activity the activity inslot, the spacing post of spring is fixed the surface of activity lug, reset spring's one end with activity groove end wall overlap joint, another pot head is established on the spacing post of spring.

Preferably, the movable groove is matched with the longitudinal section of the movable lug to form a T-shaped structure.

Preferably, the adjusting pin shaft is of a cylindrical structure.

Preferably, the guardrail is sleeved with an anti-skid rubber sleeve.

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

(1) the device can be operated only by pulling upwards, is simple and convenient to operate, has small operation action space and can be operated on the ladder;

(2) the number of the connecting points is increased from the past 1 to 2, the stress is more dispersed, the strength is higher, and the protectiveness is stronger;

(3) when the ladder is stored, the ladder completely coincides with the original structure of the ladder, and the space is not occupied;

(4) the opening height is adjustable in multiple stages.

Drawings

FIG. 1 is a schematic side view of a prior art climbing ladder barrier;

fig. 2 is a schematic axial side structure view of the climbing ladder guardrail of the present invention;

fig. 3 is a schematic side structure view of the climbing ladder guardrail of the present invention;

FIG. 4 is a schematic view of the structure of the adjusting connecting piece on the side of the shaft;

fig. 5 is an enlarged schematic view of a portion a of fig. 3 according to the present invention;

fig. 6 is a schematic view of the front structure of the adjusting pin shaft of the present invention;

fig. 7 is a schematic top view of the guardrail of the present invention;

in the figure: 1. climbing a ladder; 2. a guardrail; 3. adjusting the connecting sheet; 4. a hook groove; 5. a hook; 6. stabilizing the pin shaft; 7. stabilizing the rail groove; 8. adjusting the pin shaft; 9. a spring limiting post; 10. a return spring; 11. a movable groove; 12. and a movable lug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the present invention provides a technical solution: a climbing ladder guardrail device convenient for adjustment comprises a climbing ladder 1, a guardrail 2 and an adjusting connecting piece 3, wherein,

the adjusting connecting pieces 3 are symmetrically fixed at the top end of the ascending ladder 1;

the guardrail 2 is movably arranged at the top end of the ascending ladder 1 through an adjusting connecting sheet 3;

a plurality of hook grooves 4 which are distributed at equal intervals along the longitudinal direction are formed in the adjusting connecting sheet 3, corresponding open type hooks 5 are arranged outside the hook grooves 4, and the hook parts of the hooks 5 face upwards;

an adjusting pin shaft 8 is arranged on the guardrail 2, and the adjusting pin shaft 8 can be embedded into the hook grooves 4 at different positions.

Further, still set up one on the regulation connection piece 3 and stabilize rail groove 7 along longitudinal distribution, still be fixed with on guardrail 2 with this stabilize the corresponding stable round pin axle 6 in rail groove 7, and stabilize round pin axle 6 and can imbed in stabilizing rail groove 7, and can follow and stabilize rail groove 7 activity, when adjusting 2 heights of guardrail, stabilize round pin axle 6 and can be along stabilizing rail groove 7 activity, cooperation adjusting pin axle 8, the tie point is increased to two by one in the past, stress is more dispersed, intensity is higher, the protectiveness is stronger.

Specifically, the contact surface between the hook 5 and the lower hook groove 4 is an arc transition surface, so that the guardrail 2 can be adjusted more easily, and the adjusting pin shaft 8 can be conveniently separated from the hook groove 4.

Further, still include elastic component, elastic component includes spacing post 9 of spring, reset spring 10 and activity lug 12, movable groove 11 has been seted up on 2 surfaces of guardrail, activity lug 12 is fixed at adjusting pin 8 terminal surfaces, and activity lug 12 can imbed movable groove 11 with reciprocating activity, the surface at activity lug 12 is fixed to spacing post 9 of spring, reset spring 10's one end and 11 groove end wall overlap joints in movable groove, another pot head is established on spacing post 9 of spring, movable groove 11 is "T" style of calligraphy structure with the vertical tangent plane phase-match of activity lug 12, adjusting pin 8 is the cylinder structure.

In this embodiment, it is preferred, the cover is equipped with anti-skidding rubber sleeve on the guardrail 2, and the operating personnel of being convenient for operates, has the safety guarantee.

Specifically, when the guardrail is used, the guardrail 2 is fixed by using a specially designed rack structure on the adjusting connecting piece 3, when the guardrail is used, the guardrail 2 is slightly pulled upwards, the adjusting pin shaft 8 is disengaged from the hook groove 4 of the rack, then the guardrail is lifted to a required position, and the adjusting pin shaft 8 is hung in the hook groove 4 of the rack again, the adjusting connecting piece 3 comprises a plurality of adjusting points, different heights can be selected according to requirements, the rack structure is an attachable structure and can be installed on an ascending ladder 1 with any configuration, or the existing ascending ladder 1 is modified;

in addition, in the adjusting process, the adjusting pin shaft 8 always tends to approach the adjusting connecting piece 3 under the elastic action of the return spring 10, and particularly after the adjustment is completed, the adjusting pin shaft 8 is tightly attached to the side wall of the hook groove 4 through the return spring 10, so that the guardrail 2 is more stable in the designated height and higher in safety.

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

Claims

1. The utility model provides a ladder barrier device ascends a height convenient to adjust which characterized in that: comprises a climbing ladder (1), a guardrail (2) and an adjusting connecting piece (3), wherein,

the adjusting connecting pieces (3) are symmetrically fixed at the top end of the ascending ladder (1);

the guardrail (2) is movably arranged at the top end of the ascending ladder (1) through an adjusting connecting piece (3);

a plurality of hook grooves (4) which are distributed at equal intervals along the longitudinal direction are formed in the adjusting connecting sheet (3), corresponding open type clamping hooks (5) are arranged outside the hook grooves (4), and the hook parts of the clamping hooks (5) face upwards;

an adjusting pin shaft (8) is arranged on the guardrail (2), and the adjusting pin shaft (8) can be embedded into the hook grooves (4) at different positions.

2. A conveniently adjustable access ladder barrier device as defined in claim 1, wherein: the adjusting connecting piece (3) is also provided with a stabilizing rail groove (7) which is distributed along the longitudinal direction, and the guardrail (2) is also fixed with a stabilizing pin shaft (6) which corresponds to the stabilizing rail groove (7).

3. An adjustable access ladder barrier device as defined in claim 2, wherein: the stabilizing pin shaft (6) can be embedded into the stabilizing rail groove (7) and can move along the stabilizing rail groove (7).

4. A conveniently adjustable access ladder barrier device as defined in claim 1, wherein: the contact surface between the hook (5) and the lower hook groove (4) is an arc transition surface.

5. A conveniently adjustable access ladder barrier device as defined in claim 1, wherein: still include elastic component, elastic component includes spacing post of spring (9), reset spring (10) and activity lug (12), movable groove (11) have been seted up on guardrail (2) surface, activity lug (12) are fixed adjust pin axle (8) terminal surface, just activity lug (12) can imbed with reciprocating activity in the activity groove (11), spacing post of spring (9) are fixed the surface of activity lug (12), the one end of reset spring (10) with activity groove (11) groove end wall overlap joint, other end cover is established on spacing post of spring (9).

6. An adjustable access ladder barrier device as defined in claim 5, wherein: the movable groove (11) is matched with the longitudinal section of the movable lug (12) to form a T-shaped structure.

7. A conveniently adjustable access ladder barrier device as defined in claim 1, wherein: the adjusting pin shaft (8) is of a cylindrical structure.

8. A conveniently adjustable access ladder barrier device as defined in claim 1, wherein: the guardrail (2) is sleeved with an anti-skid rubber sleeve.