CN111980574A

CN111980574A - Portable multifunctional crawling ladder

Info

Publication number: CN111980574A
Application number: CN202010761631.0A
Authority: CN
Inventors: 马亮; 江佃秋; 李金莲; 鞠仕波; 张晓鹏; 王志达; 臧金枝; 周阳; 韩本超; 王国维; 宋丹
Original assignee: State Grid Corp of China SGCC; Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-11-24

Abstract

The utility model provides a portable multi-functional cat ladder relates to the equipment technical field of ascending a height, including the toolbox, be equipped with the handle on the toolbox, the handle rotates with the toolbox to be connected, the bottom of toolbox is equipped with the supporting leg, be equipped with the footboard on the supporting leg, footboard and supporting leg fixed connection, the high extending direction of footboard place plane perpendicular to supporting leg, the bottom of supporting leg is equipped with the walking wheel, the adjustable length of supporting leg. The application provides a design theory of portable multi-functional cat ladder has absorb the design theory of bench, replaces the seat of bench with the metal toolbox for the climbing is as an organic whole with the function of storage instrument, plays the beneficial effect of portable tool.

Description

Portable multifunctional crawling ladder

Technical Field

The application relates to the technical field of equipment of ascending a height, concretely relates to portable multi-functional cat ladder.

Background

When the low-voltage electric energy meter is replaced or installed, and the fault processing of the electric energy meter and the concentrator for low-voltage centralized meter reading, operation and maintenance work needs to be carried out with ascending operation. According to the standard, the distance between the lower edge of the electric energy meter box and the ground is 1.8m, and the distance between the upper edge of the meter box and the ground does not exceed 3 m.

Currently, when performing these several tasks, it is generally necessary to perform an ascending operation. It is common to use a retractable metal insulation ladder of 3.5m, which is used by companies, or to borrow stools or bamboo ladders from residents on site. The low-voltage centralized meter reading, operation and maintenance work often occurs in the scene of carrying the ladder and the whole platform area of the tool box for searching because fault points are scattered.

At present, the metal tool ladder is used or a climbing tool is used on a working site, and the following defects exist:

1. the existing ladder stand can be telescopic, but still has long length and is heavy, which is up to 15kg, and brings much trouble to the construction and operation and maintenance personnel. Moreover, the existing metal ladder usually adopts two legs to support the ground, the supporting effect is not stable, and another worker is needed to assist in holding the ladder during climbing operation, so that the ladder is prevented from inclining and collapsing, and the labor cost is increased.

2. The existing ladder stand only has the function of ascending a height and does not have the function of a seat, so that a worker is in a standing state for a long time and is easy to fatigue, and the working efficiency is reduced.

3. To low pressure collection fortune dimension personnel, carry ladder and toolbox simultaneously alone, whole platform district goes to investigation fault point, and especially to the mountain village, the vehicle can't be marchd in the village, and extravagant physical power has influenced fortune dimension's efficiency.

3. The common ladder is not easy to carry, borrows from local residents, is inconvenient to carry in the operation and maintenance process, and wastes a lot of time in the borrowing process.

4. For handling meter or concentrator failures at meter boxes, the task of ascending a height can be accomplished without the need for a very tall ladder. The 12-bit meter box is 120cm high, the ground distance is not more than 3 meters, and a worker with the height of 175cm can complete the work by only standing on a bench with the height of about 1 m. The use of a ladder is also inconvenient.

Disclosure of Invention

To the problem that exists among the prior art, this application provides a portable multi-functional cat ladder to reach the beneficial effect of portable cat ladder and the storage instrument of being convenient for.

The application provides a portable multi-functional cat ladder, including the toolbox, be equipped with the handle on the toolbox, the handle rotates with the toolbox to be connected, the bottom of toolbox is equipped with the supporting leg, be equipped with the footboard on the supporting leg, footboard and supporting leg fixed connection, the high extending direction of footboard place plane perpendicular to supporting leg, the bottom of supporting leg is equipped with the walking wheel, the length of supporting leg is adjustable.

Preferably, the supporting leg comprises an upper supporting frame and a lower supporting frame, and a lifting device is arranged between the upper supporting frame and the lower supporting frame.

Preferably, the lifting device comprises a connecting rod frame and a lead screw, and the lead screw penetrates through the connecting rod frame.

Preferably, one of the upper support frame and the lower support frame is provided with a slide rod wall, and the other is provided with a slide groove wall; the wall of the sliding groove is provided with a sliding groove matched with the wall of the sliding rod, and a positioning component is arranged between the wall of the sliding rod and the wall of the sliding groove.

Preferably, the positioning component comprises a plurality of first positioning holes, a plurality of second positioning holes and a plurality of positioning pins, the plurality of first positioning holes are distributed at intervals along the height direction of the wall of the sliding rod, the plurality of second positioning holes are distributed at intervals along the height direction of the wall of the sliding rod, and the positioning pins are arranged in the first positioning holes and the corresponding second positioning holes in a penetrating manner.

Preferably, the quantity of supporting leg is four, and four supporting legs set up respectively on the four corners of toolbox bottom, the supporting leg includes first sleeve pipe and first bracing piece, be equipped with the internal thread on the first sleeve pipe, be equipped with the external screw thread that suits with the internal thread on the first bracing piece.

Preferably, the quantity of supporting leg is four, and four supporting legs set up respectively on the four corners of toolbox bottom, the supporting leg includes second sleeve pipe and second bracing piece, and the second sleeve pipe cup joints in the outside of second bracing piece, be equipped with the locating hole on the second sleeve pipe, the central line perpendicular to second sheathed tube central line of locating hole, be equipped with locking bolt in the locating hole, be equipped with the screw hole that a plurality of and locking bolt suited on the second bracing piece.

Preferably, the tool box comprises a box body and a drawing box, wherein an accommodating cavity is formed in the box body, the drawing box is arranged in the accommodating cavity, and the drawing box is connected with the box body in a sliding mode.

Preferably, a lock catch is arranged between the drawing box and the box body.

Preferably, the walking wheels are arranged on one side of the supporting legs, and anti-skid grains are arranged on the pedals.

The beneficial effect of this application lies in:

the design principle of the portable multifunctional ladder stand provided by the application absorbs the design concept of the bench, and the seat of the bench is replaced by the metal tool box, so that the functions of climbing and storing tools are integrated, and the beneficial effect of convenience in carrying the tools is achieved; and the four legs of the bench adopt telescopic structures, so that the height can be adjusted, and meanwhile, the design of the four legs improves the stability of the support and the safety of ascending operation. The multi-functional cat ladder that this application provided, from the outward appearance, just like a bench. The tool box and the supporting legs are made of aluminum alloy, so that the tool box is light and firm and is convenient to carry; one side of supporting leg is equipped with the walking wheel, and the cat ladder can be fallen and remove like this, and high not enough in avoiding narrow and small space can't remove the cat ladder.

In addition, the design principle of the application is reliable, the structure is simple, and the application prospect is very wide.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic front view structure diagram of a portable multifunctional ladder stand in an embodiment of the application.

Fig. 2 is a side view schematic structure diagram of a portable multifunctional ladder stand in an embodiment of the application.

Fig. 3 is a schematic structural diagram of a portable multifunctional ladder stand in a stretching state according to the second embodiment of the application.

Fig. 4 is a schematic structural diagram of a portable multifunctional ladder in a telescopic state according to a second embodiment of the present application.

FIG. 5 is a schematic structural diagram of a support leg in the second embodiment of the present application.

FIG. 6 is a schematic structural diagram of a support leg in the third embodiment of the present application.

In the figure, 1, a tool box, 2, a handle, 3, a pedal, 4, a walking wheel, 5, an upper support frame, 6, a lower support frame, 7, a connecting rod frame, 8, a screw rod, 9, a slide rod wall, 10, a first positioning hole, 11, a first sleeve, 12, a first support rod, 13, a second sleeve, 14, a second support rod, 15, a locking bolt, 16, a drawing box, 17, a lock catch, 18 and a support leg.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The following explains key terms appearing in the present application.

Example one

As shown in fig. 1 and 2, the portable multifunctional ladder stand provided by the application comprises a tool box 1 which is of a rectangular structure. The tool box 1 comprises a box body and a drawing box 16, a containing cavity is formed in the box body, the drawing box 16 is arranged in the containing cavity, the drawing box 16 is connected with the box body in a sliding mode, the drawing box 16 is used for placing tools, and a pull ring is arranged on the drawing box 16 and is convenient for drawing the drawing box 16. In order to fix the drawing box 16, a lock catch 17 is arranged between the drawing box 16 and the box body.

The application provides a design theory of portable multi-functional cat ladder has absorb the design theory of bench, replaces the seat of bench with the metal toolbox for the climbing is as an organic whole with the function of storage instrument, plays the beneficial effect of portable tool.

Be equipped with handle 2 on toolbox 1, handle 2 rotates with toolbox 1 to be connected, and the top of toolbox is equipped with the holding tank, and handle 2 rotates the back and can keep flat in the holding tank, can reduce the area of handle. The bottom of toolbox 1 is equipped with supporting leg 18, be equipped with footboard 3 on the supporting leg 18, the quantity of footboard is a plurality of, footboard 3 and supporting leg 18 fixed connection, the high extending direction of footboard 3 place plane perpendicular to supporting leg 18, the direction of height interval distribution of footboard 3 along supporting leg 18 is equipped with anti-skidding line on the footboard 3, plays the effect of increase friction power, has improved the security of the operation of ascending a height.

The bottom of supporting leg 18 is equipped with walking wheel 4, walking wheel 4 sets up in one side of supporting leg, and the cat ladder can be fallen to remove like this, and high not enough in the avoiding narrow and small space, unable removal cat ladder.

The length of the supporting leg is adjustable. Specifically, the supporting leg includes upper support frame 5 and lower carriage 6, be equipped with elevating gear between upper support frame 5 and the lower carriage 6. The number of the walking wheels 4 is two, and the two walking wheels 4 are symmetrically arranged on the same side of the lower support frame 6.

The lifting device comprises a connecting rod frame 7 and a lead screw 8, and the lead screw 8 penetrates through the connecting rod frame 7. In order to facilitate the rotation of the lead screw 8, the end part of the lead screw 8 is provided with a hand wheel, the hand wheel rotating the lead screw 8 can drive the connecting rod frame 7 to deform, and further an upper support frame at the upper end of the jacking is realized, so that the height adjustment of the support legs is realized, the size of the ladder stand can be changed, and the beneficial effects of convenience in carrying and transportation are achieved.

One of the upper support frame 5 and the lower support frame 6 is provided with a slide rod wall 9, and the other is provided with a slide groove wall; and a sliding groove matched with the sliding rod wall is arranged on the sliding groove wall, and a positioning component is arranged between the sliding rod wall 9 and the sliding groove wall. The slide groove extends in the height direction of the upper support frame 5 or the lower support frame 6.

The positioning part comprises a plurality of first positioning holes 10, a plurality of second positioning holes and a plurality of positioning pins, the first positioning holes are distributed at intervals along the height direction of the sliding rod wall 9, the second positioning holes are distributed at intervals along the height direction of the sliding rod wall 9, and the first positioning holes are distributed at intervals along the height direction of the sliding rod wall. In actual work, when the lifting device is lifted to a preset height, the positioning pins penetrate through the first positioning holes 10 and the corresponding second positioning holes, and the upper support frame 5 and the lower support frame 6 are fixedly connected.

Example two

In order to solve the above problems, the inventor of the present invention, based on the first embodiment, makes a modification as shown in fig. 3 to 5, wherein the number of the support legs is four, and the four support legs are respectively arranged at four corners of the bottom of the toolbox. The supporting leg includes first sleeve pipe 11 and first bracing piece 12, be equipped with the internal thread on the first sleeve pipe 11, be equipped with the external screw thread that suits with the internal thread on the first bracing piece 12, the both ends of footboard 3 are fixed on first sleeve pipe 11 through solid fixed ring respectively. First sleeve pipe 11 and first bracing piece 12 adopt threaded connection's mode, and the regulation of the supporting leg height of being convenient for plays portable's beneficial effect. Simultaneously, the height of four supporting legs can be adjusted alone respectively to can adapt to the operational environment of unevenness on ground.

EXAMPLE III

In order to solve the above problems, the inventor of the present invention, on the basis of the first embodiment, improves as shown in fig. 6, where the number of the support legs is four, the four support legs are respectively disposed at four corners of the bottom of the toolbox, each support leg includes a second sleeve 13 and a second support rod 14, the second sleeve 13 is sleeved on the outside of the second support rod 14, the second sleeve 3 is provided with a positioning hole, a central line of the positioning hole is perpendicular to a central line of the second sleeve 13, the positioning hole is provided with a locking bolt 15, and the second support rod 14 is provided with a plurality of threaded holes adapted to the locking bolt 15. The second sleeve 13 and the second support rod 14 are connected in a drawing mode, so that the height of the support leg can be adjusted conveniently, and the portable beneficial effect is achieved. Simultaneously, the height of four supporting legs can be adjusted alone respectively to can adapt to the operational environment of unevenness on ground.

Although the present application has been described in detail with reference to the accompanying drawings in conjunction with the preferred embodiments, the present application is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the present application, and these modifications or substitutions are intended to be covered by the present application/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a portable multi-functional cat ladder which characterized in that: including toolbox (1), be equipped with handle (2) on toolbox (1), the bottom of toolbox (1) is equipped with supporting leg (18), be equipped with footboard (3) on supporting leg (18), footboard (3) and supporting leg (18) fixed connection, the high extending direction of footboard (3) place plane perpendicular to supporting leg (18), the bottom of supporting leg (18) is equipped with walking wheel (4), the length of supporting leg is adjustable.

2. The portable multi-function ladder of claim 1, wherein: the supporting legs comprise an upper supporting frame (5) and a lower supporting frame (6), and a lifting device is arranged between the upper supporting frame (5) and the lower supporting frame (6).

3. The portable multi-function ladder of claim 2, wherein: the lifting device comprises a connecting rod frame (7) and a lead screw (8), wherein the lead screw (8) penetrates through the connecting rod frame (7).

4. The portable multi-function ladder of claim 2, wherein: one of the upper support frame (5) and the lower support frame (6) is provided with a sliding rod wall (9), and the other is provided with a sliding groove wall; the sliding groove wall is provided with a sliding groove matched with the sliding rod wall, and a positioning component is arranged between the sliding rod wall (9) and the sliding groove wall.

5. The portable multi-function ladder of claim 4, wherein: the positioning part comprises a plurality of first positioning holes (10), a plurality of second positioning holes and positioning pins, the first positioning holes are distributed at intervals along the height direction of the sliding rod wall (9), the second positioning holes are distributed at intervals along the height direction of the sliding rod wall, the first positioning holes are distributed at intervals along the height direction of the sliding rod wall, and the positioning pins are arranged in the first positioning holes (10) and the corresponding second positioning holes in a penetrating mode.

6. The portable multi-function ladder of claim 1, wherein: the supporting legs are four in number and are arranged on four corners of the bottom of the tool box respectively, the supporting legs comprise first sleeves (11) and first supporting rods (12), internal threads are arranged on the first sleeves (11), and external threads matched with the internal threads are arranged on the first supporting rods (12).

7. The portable multi-function ladder of claim 1, wherein: the quantity of supporting leg is four, and four supporting legs set up respectively in the four corners of toolbox bottom, the supporting leg includes second sleeve pipe (13) and second bracing piece (14), and second sleeve pipe (13) cup joint the outside at second bracing piece (14), be equipped with the locating hole on second sleeve pipe (3), the central line perpendicular to second sleeve pipe (13) of locating hole central line, be equipped with locking bolt (15) in the locating hole, be equipped with the screw hole that a plurality of and locking bolt (15) suited on second bracing piece (14).

8. The portable multi-function ladder of claim 1, wherein: the tool box (1) comprises a box body and a drawing box (16), wherein an accommodating cavity is formed in the box body, the drawing box (16) is arranged in the accommodating cavity, and the drawing box (16) is connected with the box body in a sliding mode.

9. The portable multi-function ladder of claim 8, wherein: a lock catch (17) is arranged between the drawing box (16) and the box body.

10. The portable multi-function ladder of claim 1, wherein: the walking wheels (4) are arranged on one side of the supporting legs, and anti-skidding lines are arranged on the pedals (3).