CN207245601U - A kind of suspension type safety extension ladder - Google Patents

Abstract

The utility model discloses a hanging safety telescopic ladder, which comprises a fixed structure and a telescopic structure, the fixed structure is connected with a telescopic structure, the top of the telescopic structure is connected with a workbench, and the telescopic structure includes a telescopic support rod, a ladder step and an anti-pinch hand The telescopic support rod is made of several telescopic support columns, the ladder steps are installed between two opposite telescopic support columns, and the anti-pinch device is installed at both ends of the ladder steps; the anti-pinch device includes a jacket on the ladder The collar of the step and the stopper connected with the upper or lower end of the collar. The bottom end of the telescopic support rod is provided with an anti-slip device, and the anti-slip device includes an adjustment seat, a pressing handle, an anti-slip suction cup and a support bar. The utility model has the advantages of simple structure, simple operation and convenient use, which can reduce the volume of the ladder, reduce the occupied space, greatly reduce the transportation cost, increase the interaction force between the bottom of the telescopic ladder and the ground, and prevent the telescopic ladder from falling on the ground. Skid on.

Description

A hanging safety telescopic ladder

technical field

The utility model relates to the field of electric equipment, in particular to a hanging safety telescopic ladder.

Background technique

The telescopic ladder can be stretched and shortened. It usually has a lighter weight. After being shortened, it has a shorter height and is easy to carry. When in use, it can be stretched to a predetermined length according to the needs and can bear a certain weight. It can be used for various Occasions that require climbing operations, such as homes, hotels, shopping malls, enterprises, power telecommunications, urban construction, public security fire protection, heating and gas supply, gardens, etc., are also commonly used in field operations for various emergency repair vehicles, line inspection vehicles, command vehicles, etc. climbing tools. For example, in the work of meter installation and power connection, the electric energy meter box installed on site has 3, 6, 9, 12, and 24 meter positions. Due to the weight of the electric energy meter box itself plus the switch and circuit breaker, it finally reaches 20-40 kg. Due to the rough and uneven terrain in the countryside, according to the installation and construction standards of the electric energy meter, the installation position should be more than 1.8 meters above the ground. If only a human lifting frame is used to fix it on the wall, it will be very difficult for one or two people to cooperate.

The telescopic ladder is suitable for use in various places that require frequent and safe climbing or taking and storing items at high places. With the demand of the market, the requirements for stability and safety of use have also increased accordingly. The retractable ladder as described in Chinese patent 200620140435.7 includes left and right vertical rods and crosspieces. The vertical rod is provided with a boss. The radial surface is in contact, and the vertical pole is provided with a load-bearing ring and a buffer pad, so that there is an anti-pinch gap between the crosspiece and the crosspiece. Although this telescopic ladder is stable and safe, its structure is complex, and the boss installed in the pole is not easy to disassemble and replace, and after the ladder shrinks, it is larger than the telescopic ladder without the boss, and it takes up a lot of space when packing , is not conducive to storage and transportation.

The patent document with the authorized notification number CN101294479B discloses a telescopic ladder, which includes left and right vertical ladder columns composed of several sections of telescopic tubes that slide and overlap step by step. For the ladder section, the middle part of the beam is provided with a locking device for simultaneously locking the adjacent inner and outer telescopic tubes on the left side and the adjacent inner and outer telescopic tubes on the right side. The locking device includes left and right locking rods arranged along the direction of the beam and a spring arranged in the middle of the beam. The opposite ends of the left and right locking rods are provided with control handles and are connected by springs. The positions corresponding to the free ends of the left and right locking rods are provided with overlapping positioning holes, and the free ends of the left and right locking rods are inserted into the corresponding positioning holes under the action of the spring. Only one hand is needed to pull the left and right locking levers at the same time to unlock.

At the same time, but for some particularly smooth ground, the frictional force generated by the contact between the telescopic ladder and the ground is relatively small, and the telescopic ladder is easy to slip, causing a safety accident.

Utility model content

The purpose of this utility model is to provide a hanging safety telescopic ladder to solve the problems raised in the above-mentioned background technology.

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

A suspended safety telescopic ladder, comprising a fixed structure and a telescopic structure, the fixed structure is connected with a telescopic structure, the upper end of the fixed structure is equipped with a fixed pin, the telescopic structure has a card slot, and the top of the telescopic structure is connected with a workbench , connecting rods and hooks are connected between the workbench and the telescopic structure, and the connecting rods have pins; the telescopic structure includes telescopic support rods, ladder steps and anti-pinch devices, and the telescopic support rods are formed by socketing of several telescopic support columns. , the ladder steps are installed between two opposite telescopic support columns, and the anti-pinch device is installed at both ends of the ladder steps; the anti-pinch device includes a ferrule that is overlaid on the ladder step and a block connected to the upper or lower end of the ferrule ; There are two buffer pads installed on the bottom of the ladder steps, and the anti-pinch device is located between the buffer pad and the telescopic support rod; the bottom end of the telescopic support rod is provided with an anti-slip device, which includes an adjustment seat, a pressing handle, an anti-slip suction cup and a support bar ;The bottom end of each telescopic support rod is threaded with an adjustment seat, and the non-slip suction cup is installed on the bottom surface of the corresponding adjustment seat; the bottom end of each telescopic support rod has external threads, and the adjustment seat has a matching internal thread There is a support bar between the bottom surface of the adjustment seat and the corresponding anti-slip suction cup; the support bars corresponding to each adjustment seat are evenly distributed around the circumference of the corresponding adjustment seat; the anti-slip suction cup is equipped with a pressing handle for driving the deformation of the anti-slip suction cup .

As a further solution of the utility model: there are two workbenches at the top of the telescopic structure.

As a further solution of the utility model: the length of the workbench is 20-40 centimeters, and the width is 8-15 centimeters.

As a further solution of the utility model: a pair of small bosses are provided on the inner surface of the end connected to the stopper on the ferrule.

As a further solution of the utility model: the block is half-waisted, and its outer surface is provided with anti-slip strips.

As a further solution of the utility model: the adjustment seat, the bottom end of the telescopic support rod threaded with the adjustment seat and the support bar are made of aluminum alloy.

As a further solution of the utility model: the adjustment seat and the support bar adopt an integrated structure.

Compared with the prior art, the beneficial effect of the utility model is that when the utility model is used, the workbench can be supported, and then the working box can be placed on the workbench to work, and the operation is simple and convenient to use. The utility model can reduce the volume of the ladder, reduce the occupied space, thereby greatly reducing the transportation cost. The utility model has a simple structure, can increase the interaction force between the bottom of the telescopic ladder and the ground, and prevent the telescopic ladder from slipping on the ground.

Description of drawings

Fig. 1 is that Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a left side view of Fig. 1 .

Fig. 4 is a structural schematic diagram of the expanded state of the telescopic structure of the present invention.

Fig. 5 is a schematic structural view of the anti-pinch device of the present invention.

Fig. 6 is a schematic diagram of a telescopic support rod with an anti-slip device.

Fig. 7 is an enlarged view of part A in Fig. 6 .

Fig. 8 is a structural schematic diagram of the anti-skid suction cup part.

In the figure: 1-telescopic structure, 2-fixed structure, 3-anti-pinch device, 4-fixed pin, 5-bolt, 6-workbench, 10-telescopic support rod, 11-telescopic support column, 20-ladder steps , 31-ferrule, 32-block, 33-small boss, 34-anti-slip strip, 44-cushion pad, 53-adjusting seat, 54-press handle, 55-anti-slip suction cup, 56-support bar.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

In the embodiment of the present utility model, please refer to Fig. 1-Fig. 8, a kind of suspended safety telescopic ladder, comprises fixed structure 2 and telescopic structure 1, and telescopic structure 1 is connected on fixed structure 2, and the upper end of fixed structure 2 is installed with fixed Pin 4 has a draw-in slot on the telescopic structure 1, and a workbench 6 is connected to the top of the telescopic structure 1, and a connecting rod and a hook are connected between the workbench 6 and the telescopic structure 1, and a latch 5 is provided on the connecting rod.

There are two workbenches 6 at the top of the telescopic structure 1 .

The workbench 6 has a length of 20-40 centimeters and a width of 8-15 centimeters.

The telescopic structure 1 includes a telescopic support rod 10, a ladder step 20 and an anti-pinch device 3. The telescopic support rod 10 is formed by telescopic sockets of several telescopic support columns 11, and the ladder steps 20 are installed on two opposite telescopic support columns 11. Between them, the anti-pinch device 3 is installed at both ends of the ladder step 20. When the anti-pinch device 3 is installed and disassembled, it only needs to be inserted or slid out from the two ends of the ladder step 20. The operation is simple and convenient, and the anti-pinch The hand device 3 includes a collar 31 covering the ladder step 20 and a stopper 32 connected to the upper end or the lower end of the collar 31 . When the ladder shrinks, since the block 32 is blocked between the steps 20 of two adjacent ladders, a hand-pinch prevention gap is formed between the steps 20 of the two adjacent ladders.

After the ladder shrinks, it is only necessary to rotate the anti-pinch device 3 90 degrees clockwise or counterclockwise to move the stopper 32 from the lower end of the ladder step 20 to one side, thereby reducing the size of the ladder and reducing the occupied space. Purpose. The anti-pinch device 3 is made of flexible material, which facilitates the rotation of the anti-pinch device 3 on the ladder step 20. A pair of small bosses 33 are arranged on the inner surface of the end that is connected with the stopper 32 on the ferrule 31. The setting of 33 further facilitates the rotation of the anti-pinch device 3, and the stopper 32 is half-waisted, and its outer surface is provided with a plurality of anti-slip strips 34, which can prevent slipping when the anti-pinch device 3 is rotated.

Two buffer pads 44 are installed on the bottom surface of the ladder step 20. After the anti-pinching device 3 is rotated to the side of the ladder step 20, the buffer pad 4 can prevent the collision between the ladder step 20 and the ladder step 20 when the ladder shrinks, and prevents the hand from being pinched. The device 3 is located between the buffer pad 44 and the telescopic support rod 10, which reduces the range of motion of the hand-pinch prevention device 3 and increases the stability of the hand-pinch prevention device 3 in use.

The utility model is not only provided with anti-slip strip 34, but also is provided with anti-slip device at the bottom of telescopic support rod 10, and anti-slip device includes adjusting seat 53, pressing handle 54, anti-slip suction cup 55 and support bar 56.

The bottom end of each telescopic support rod 10 is screwed with an adjustment seat 53 , and the anti-slip suction cup 55 is installed on the bottom surface of the corresponding adjustment seat 53 . The bottom end of each telescopic support rod 10 has an external thread, and the adjusting seat 53 has a matching internal thread.

Four support bars 56 are provided between the bottom surface of the adjustment seat 53 and the corresponding anti-slip suction cup 55 .

The four supporting bars 56 corresponding to each adjustment seat 53 are evenly distributed around the circumference of the corresponding adjustment seat 53 .

The anti-slip suction cup 55 is provided with a pressing handle 54 for driving the anti-slip suction cup 55 to deform.

The adjustment seat 53, the bottom end of the telescopic support rod 10 threaded with the adjustment seat 53 and the support bar 56 are made of aluminum alloy, and the adjustment seat 53 and the support bar 56 adopt an integral structure.

The area of the non-slip suction cup 55 in contact with the ground is set according to needs, and can be converted according to the load-bearing requirements of the telescopic ladder.

When the telescopic ladder of the present utility model is in use, the anti-slip suction cup 55 is in contact with the ground, and the pressing handle 54 is pressed down to remove the air between the anti-slip suction cup 55 and the ground, so that the anti-slip suction cup 55 is bonded to the ground. The interaction force between the suction cup 55 and the ground increases to prevent the telescopic ladder from sliding relative to the ground.

The utility model adopts the anti-pinch device, which improves the safety of the user when operating the telescopic ladder. The anti-pinch device is sleeved on the crosspiece, and has a simple structure. Just insert (or take out) both sides of the gear, and the setting of the stopper prevents the possibility of fingers being caught by the crosspiece when the telescopic ladder shrinks.

The anti-pinch device is made of flexible materials, and it is movable installed on the crosspiece to facilitate the rotation of the anti-pinch device, and a pair of small bosses are provided on the inner surface of the end connected to the stopper on the ferrule, which is further convenient. To ensure the rotation of the anti-pinch device, the anti-slip strip on the outer wall of the block can prevent the anti-pinch device from slipping when it rotates. When shrinking the ladder for packaging, it is only necessary to rotate the anti-pinch device.

Claims (7)

1. A hanging safety telescopic ladder, comprising a fixed structure and a telescopic structure, the fixed structure is connected with a telescopic structure, it is characterized in that, the upper end of the fixed structure is equipped with a fixed pin, the telescopic structure has a draw-in groove, and the telescopic structure There is a workbench connected to the top of the workbench, and a connecting rod and a hook are connected between the workbench and the telescopic structure, and the connecting rod has a pin; The support columns are socketed, the ladder steps are installed between two opposite telescopic support columns, and the anti-pinch device is installed at both ends of the ladder steps; Or the block connected to the lower end; two buffer pads are installed on the bottom surface of the ladder steps, and the anti-pinch device is located between the buffer pad and the telescopic support rod; the bottom end of the telescopic support rod is provided with an anti-slip device, which includes an adjustment seat and a pressing handle , non-slip suction cup and support bar; the bottom end of each telescopic support rod is threaded with an adjustment seat, and the anti-slip suction cup is installed on the bottom surface of the corresponding adjustment seat; the bottom end of each telescopic support rod has external threads, and the adjustment seat belt There are matching internal threads; there is a support bar between the bottom surface of the adjustment seat and the corresponding anti-slip suction cup; the support bars corresponding to each adjustment seat are evenly distributed around the circumference of the corresponding adjustment seat; Press the handle to deform the suction cup. 2. The suspended safety telescopic ladder according to claim 1, characterized in that there are two workbenches at the top of the telescopic structure. 3. The suspended safety telescopic ladder according to claim 1, characterized in that, the length of the workbench is 20-40 cm, and the width is 8-15 cm. 4. The suspended safety telescopic ladder according to claim 1, characterized in that a pair of small bosses are provided on the inner surface of the end of the ferrule connected to the stopper. 5. The suspended safety telescopic ladder according to claim 1, characterized in that, the stopper is in the shape of a half waist, and an anti-slip strip is provided on its outer surface. 6. The suspended safety telescopic ladder according to claim 1, characterized in that the adjustment seat, the bottom end of the telescopic support rod and the support bar threaded with the adjustment seat are made of aluminum alloy. 7. The suspended safety telescopic ladder according to claim 1, characterized in that the adjustment seat and the support bar adopt an integral structure.