Portable and safe operation telescopic ladder stand

Abstract

The utility model provides a portable and safe telescopic ladder stand for operation, and solves the problem that a ladder cannot be suitable for working condition construction such as external maintenance of structures in narrow sites and temporary high-altitude operation in the same. The climbing ladder comprises a main climbing ladder and a movable climbing ladder in sliding connection with the main climbing ladder, a lifting driving device is arranged on the main climbing ladder, the lifting driving device is connected with the movable climbing ladder, and the lifting driving device is used for controlling the lifting of the movable climbing ladder; a connecting rod piece extending backwards is fixedly arranged on the rear side of the upper end of the movable crawling ladder, a vertically-arranged hooking plate is fixedly arranged at the rear end of the connecting rod piece, the lower end of the hooking plate extends to the position below the rear end of the connecting rod piece, and the hooking plate and the connecting rod piece form a hooking structure capable of being hooked to a wall; inclined supporting rods are arranged on the left side and the right side of the main crawling ladder, and the lower ends of the inclined supporting rods are flush with the lower end of the main crawling ladder. When the ladder stand is used, the ladder stand can be hooked on a wall body or a parapet wall of a low-rise building through a hooking structure formed by the hooking plate and the connecting rod piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of telescopic ladder, especially light and safe operation telescopic ladder. BACKGROUND

[0002] At present, for the high-altitude operation in the hutong, the hole sealing of the outer wall after the construction scaffold dismantling of the ancient city wall, the pointing maintenance, the bright installation, the monitoring installation of the building structure outer wall, the lamp installation, the bridge installation, the local maintenance of the outer wall, the outdoor maintenance construction site is narrow, the ground is uneven, the operation construction is generally three operation modes of the aerial work platform, the erected scaffold and the use of ladder. However, the narrow site construction and the hutong temporary high-altitude operation use the ordinary ladder, the ladder is unstable and prone to falling, the worker is prone to falling, the maintenance work of the aerial work platform environment also faces the problems of high construction cost, complicated operation, slow progress and the like, and is prone to safety accidents and other risks. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problem that the existing ladder cannot be applied to the narrow site construction and the hutong temporary high-altitude operation in the background art, the utility model provides a light and safe operation telescopic ladder.

[0004] The technical scheme of the utility model is: a light and safe operation telescopic ladder, which comprises a main ladder and a movable ladder connected with the main ladder, a lifting driving device is arranged on the main ladder, the lifting driving device is connected with the movable ladder, and the lifting driving device is used to control the lifting of the movable ladder.

[0005] The rear side of the upper end of the movable ladder is fixedly provided with a connecting rod member extending rearward, the rear end of the connecting rod member is fixedly provided with a hooking plate arranged vertically, the lower end of the hooking plate extends below the rear end of the connecting rod member, and the hooking plate and the connecting rod member form a hooking structure capable of being hooked on a wall.

[0006] The left and right sides of the main ladder are each provided with an inclined bracing rod, and the lower end of the inclined bracing rod is flush with the lower end of the main ladder.

[0007] Preferably, the connecting rod member is a telescopic rod member structure with adjustable length.

[0008] Preferably, the connecting rod member comprises a second connecting rod, the front end of the second connecting rod is fixedly connected with the rear side of the upper end of the movable ladder, an inner threaded hole extending in the front-rear direction and having a rear opening is formed in the second connecting rod, an adjusting rod is inserted into the inner threaded hole and is threadedly connected with the inner threaded hole, and the rear end of the adjusting rod penetrates out of the inner threaded hole and is fixedly connected with the hooking plate.

[0009] Preferably, the rear side of the hooking plate is fixedly provided with a spherical abutting member.

[0010] Preferably, the rear side of the spherical abutting member is provided with a plurality of anti-skid teeth arranged in up-down direction and extending in left-right direction.

[0011] Preferably, the main ladder comprises two vertical pipes arranged in left-right direction, the vertical pipes are provided with an open-top channel, the side plates on the opposite sides of the two vertical pipes are provided with a sliding groove extending in up-down direction, the sliding groove is communicated with the channel and the outer space of the vertical pipe, and the front-rear width of the sliding groove is smaller than that of the channel.

[0012] A plurality of first steps arranged in up-down direction are fixedly connected between the two vertical pipes, and the first steps are located on the front side of the vertical pipes.

[0013] A plurality of first connecting rods arranged in left-right direction are fixedly arranged on the inner wall of the channel, the first connecting rods are U-shaped rod structures, and rotating sleeves extending in front-rear direction are rotatably arranged on the first connecting rods.

[0014] The movable ladder comprises two vertical rods arranged in left-right direction, the lower ends of the vertical rods are movably inserted into the channel, and the upper ends of the vertical rods extend to the outside of the channel, the rotating sleeves of the left and right columns in the same channel are in rolling contact with the left and right sides of the vertical rods, respectively, and a second step extending in left-right direction is fixedly connected between the two vertical rods, and the second step is movably arranged in the two channels.

[0015] Preferably, the top of the first step is fixedly provided with a first anti-skid strip, and the top of the second step is fixedly provided with a second anti-skid strip.

[0016] Preferably, the lifting control device comprises a mounting plate fixedly arranged on the vertical pipe and a hand-operated winch fixedly arranged on the mounting plate, and a pull rope is connected to the hand-operated winch.

[0017] The vertical rod is a tubular structure extending in up-down direction, and the upper and lower ends of the vertical rod are provided with sealing plate structures; an L-shaped guide pipe is arranged through the side wall of the upper section of the vertical rod, and the upper end of the pull rope passes through the L-shaped guide pipe and enters the pipe of the vertical rod and is fixedly connected to the sealing plate structure at the lower end of the vertical rod.

[0018] The hand-operated winch comprises a rotating winding shaft and a rotating disc fixedly arranged at the end of the winding shaft, a plurality of first pin holes arranged in up-down direction are arranged on the rotating disc around the winding shaft, a protective plate is fixedly arranged on the hand-operated winch, a second pin hole corresponding to any one of the first pin holes in left-right direction is arranged on the protective plate, and a positioning pin is inserted into the first pin hole and the second pin hole corresponding to the first pin hole in left-right direction.

[0019] Preferably, the left and right sides of the main ladder are hingedly provided with diagonal support rods capable of swinging left and right, and the diagonal support rods are telescopic rod structures with adjustable length.

[0020] The utility model discloses a advantage: the device can adapt to the construction demand of different height when using through the length of the adjustable movable ladder that stretches the main ladder, and when using, when needing to hook the ladder on the wall, the ladder can be hooked on the parapet of the low building or the wall through the hooking structure that the hooking board and connecting rod form. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skill in the art person, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0022] Figure 1 It is the main body structure schematic diagram of example 1;

[0023] Figure 2 It is the left riser of A-A plane section view in Figure 1

[0024] Figure 3 It is the structure enlarged view of A in Figure 1

[0025] Figure 4 It is the structure enlarged view of B in Figure 2

[0026] Figure 5 It is the structure enlarged view of C in Figure 2

[0027] Figure 6 It is the structure enlarged view of D in Figure 1

[0028] Figure 7 It is the structure enlarged view of E in Figure 1

[0029] In the drawing, 1, riser, 101, passageway, 2, first pedal, 3, first antiskid strip, 4, first connecting rod, 5, rotating sleeve, 6, vertical rod, 7, second pedal, 8, second antiskid strip, 9, second connecting rod, 10, adjusting rod, 11, hooking board, 12, spherical abutting member, 13, antiskid tooth, 14, hinged member, 15, movable rod, 16, adjusting sleeve, 17, fastening screw, 18, L-shaped guide pipe, 19, pull rope, 20, mounting plate, 21, hand-operated winch, 22, protection plate, 23, rotating disc, 24, positioning pin. DETAILED DESCRIPTION​​​​​​

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0031] Embodiment 1: a portable safe working telescopic ladder, as shown by 1, comprising a main ladder and a movable ladder in sliding connection with the main ladder. Specifically, as shown by Figure 2 and Figure 6 , the main ladder comprises two vertical pipes 1 arranged at intervals left and right, the vertical pipe 1 is provided with a channel 101 with an upper opening, the side plate on the opposite side of the two vertical pipes 1 is provided with a sliding groove extending in the up-down direction, the sliding groove is in communication with the channel 101 and the external space of the vertical pipe 1, and the front and back width of the sliding groove is less than that of the channel 101. A plurality of first steps 2 arranged at intervals up and down are fixedly connected between the two vertical pipes 1, the first step 2 is located at the front side of the vertical pipe 1, and the top of the first step 2 is fixedly provided with a first anti-skid strip 3, which is made of anti-skid rubber plate in the embodiment.

[0032] A first connecting rod 4 arranged at intervals left and right is fixedly arranged on the inner wall of the channel 101, the first connecting rod 4 is a U-shaped rod structure, and a rotating sleeve 5 extending in the front-back direction is rotatably arranged on the first connecting rod 4.

[0033] The movable ladder comprises two vertical rods 6 arranged at intervals left and right, the lower end of the vertical rod 6 is movably inserted into the channel 101, the upper end of the vertical rod 6 extends to the outside of the channel 101, the left and right two rotating sleeves 5 in the same channel 101 are in rolling contact with the left and right sides of the vertical rod 6 respectively, and a second step 7 extending in the left-right direction is fixedly connected between the left and right two vertical rods 6, the second step 7 is movably arranged in the two channels 101, and the top of the second step 7 is fixedly provided with a second anti-skid strip 8, which is made of anti-skid rubber plate in the embodiment.

[0034] The main ladder is provided with a lifting driving device, the lifting driving device is connected with the movable ladder, and the lifting driving device is used to control the lifting of the movable ladder. Specifically, as shown by Figure 2 , Figure 6 and Figure 7 , the lifting control device comprises a mounting plate 20 fixedly arranged on the vertical pipe 1 and a hand winch 21 fixedly arranged on the mounting plate 20, and the hand winch 21 is connected with a pull rope 19.

[0035] The stand 6 is a tubular structure extending upward and downward, and the upper and lower ends of the stand 6 are provided with sealing plate structures. An L-shaped guide pipe 18 is provided on the side wall of the upper section of the stand 6, and the upper end of the pull rope 19 passes through the L-shaped guide pipe 18 and enters the pipe of the stand 6, and is fixedly connected with the sealing plate structure at the lower end of the stand 6.

[0036] The manual winch 21 comprises a rotatingly arranged winding shaft and a rotating disc 23 fixedly arranged at the end of the winding shaft. The rotating disc 23 is provided with a plurality of first pin holes arranged at intervals around the winding shaft. The manual winch 21 is fixedly provided with a protective plate 22, and the protective plate 22 is provided with a second pin hole corresponding to any one of the first pin holes. A positioning pin 24 is inserted into the corresponding first pin hole and the second pin hole.

[0037] The rear side of the upper end of the stand 6 is fixedly provided with a rearwardly extending connecting rod member, which is a telescopic rod member structure with adjustable length. Specifically, as shown in Figure 4 , the connecting rod member comprises a second connecting rod 9, the front end of which is fixedly connected with the rear side of the upper end of the movable ladder. An internally threaded hole is formed in the second connecting rod 9 and extends in the front-rear direction with a rear opening. An adjusting rod 10 is inserted into the internally threaded hole and is screwed with the internally threaded hole. The rear end of the adjusting rod 10 passes through the internally threaded hole and is fixedly connected with a hooking plate 11. The lower end of the hooking plate 11 extends below the rear end of the connecting rod member, and the hooking plate 11 and the connecting rod member form a hooking structure that can be hooked on a wall.

[0038] In order to avoid the lower end of the hooking plate 11 being bent due to excessive force when the ladder is tilted and lapped on the wall, a spherical abutting member 12 is fixedly arranged at the rear side of the hooking plate 11 in the embodiment. The spherical abutting member 12 is a solid spherical body structure.

[0039] In order to prevent the ladder from sliding upward and downward after lapping, a plurality of anti-skid teeth 13 are arranged on the rear side of the spherical abutting member 12, which are arranged at intervals upward and downward and extend in the left-right direction.

[0040] In order to prevent the ladder from tilting left and right when in use, a diagonal brace is hingedly arranged on the left and right sides of the main ladder and can swing left and right. The diagonal brace is a telescopic rod structure with adjustable length, and the lower end of the diagonal brace can be flush with the lower end of the main ladder. Specifically, as shown in Figure 1 and Figure 3 , a hinge member 14 is fixedly arranged on the left and right sides of the main ladder. The diagonal brace comprises a movable rod 15 and an adjusting sleeve 16. The lower end of the movable rod 15 is movably inserted into the adjusting sleeve 16. A through second internally threaded hole is formed in the side wall of the adjusting sleeve 16. A fastening screw 17 is inserted into the second internally threaded hole and is screwed with the second internally threaded hole. One end of the fastening screw 17 abuts against the side wall of the movable rod 15. The fastening screw 17 is used to press and fix the movable rod 15 in the adjusting sleeve 16. In order to facilitate screwing, the fastening screw 17 in the embodiment is a butterfly head screw.

[0041] In order to increase the contact area of the lower end of the adjusting sleeve 16 with the ground, the lower end face of the adjusting sleeve 16 in the embodiment is provided with a bevel structure, as shown. Figure 1 In order to further improve the anti-skid effect of the adjusting sleeve 16, the lower end face of the adjusting sleeve 16 is provided with anti-skid lines.

[0042] Working principle: in use, according to the construction situation on site, the movable ladder is pulled out of the main ladder by a certain length through the hand winch 21, and the rotating disc 23 and the winding shaft are fixed through the positioning pin 24 to fix the extension length of the movable ladder.

[0043] When it is needed to hook the ladder on the wall, the construction personnel adjust the length of the connecting rod (the second connecting rod 9 and the adjusting rod 10), and then hook the hooking structure formed by the hooking plate 11 and the connecting rod on the wall or the parapet of the low-rise building.

[0044] When it is needed to tilt the ladder and lap it on the wall, the rear side of the spherical abutting piece 12 is abutted on the wall, and the anti-skid teeth 13 on the rear side of the spherical abutting piece 12 can prevent the ladder from sliding up and down in use. Then the length of the inclined bracing rod is adjusted, and the inclined abutting piece is abutted on the ground to prevent the ladder from tilting left and right in use.

[0045] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A light and safe telescopic ladder for work, characterized by: It includes a main ladder and a movable ladder slidably connected to the main ladder. The main ladder is provided with a lifting drive device, which is connected to the movable ladder and is used to control the lifting and lowering of the movable ladder. A connecting rod extending rearward is fixedly provided on the rear side of the upper end of the movable ladder, a vertically arranged hook plate (11) is fixedly provided on the rear end of the connecting rod, the lower end of the hook plate (11) extends below the rear end of the connecting rod, and the hook plate (11) and the connecting rod form a hook structure capable of being hooked on a wall; Diagonal braces are provided on both sides of the main ladder, and the lower ends of the diagonal braces are flush with the lower end of the main ladder.

2. A lightweight and safe telescopic working ladder according to claim 1, characterized in that: The connecting rod is a telescopic rod structure with adjustable length.

3. A light and safe telescopic working ladder as claimed in claim 2, characterized in that: The connecting rod member includes a second connecting rod (9), the front end of the second connecting rod (9) is fixedly connected to the rear side of the upper end of the movable ladder, an internal threaded hole extending in the front-to-back direction and open at the rear is provided in the second connecting rod (9), an adjusting rod (10) threadedly connected to the internal threaded hole is inserted in the internal threaded hole, and the rear end of the adjusting rod (10) passes through the internal threaded hole and is fixedly connected to the hook plate (11).

4. A lightweight and safe telescopic working ladder according to any one of claims 1 to 3, characterized in that: A spherical abutment member (12) is fixedly provided on the rear side of the hook plate (11).

5. A light and safe telescopic working ladder as claimed in claim 4, characterized in that: A plurality of anti-slip teeth (13) are provided on the rear side surface of the spherical abutting member (12) and are spaced apart from each other and extend in the left-right direction.

6. A light and safe telescopic working ladder according to claim 1, characterized in that: The main ladder comprises two vertical pipes (1) spaced apart on the left and right sides, wherein a channel (101) with an upper opening is provided in the vertical pipes (1), and a chute extending in the up-down direction is provided on the side panels on the opposite sides of the two vertical pipes (1), the chute is connected to the channel (101) and the external space of the vertical pipes (1), and the front-to-back width of the chute is smaller than the front-to-back width of the channel (101); A plurality of first pedals (2) spaced apart from one another are fixedly connected between the two vertical pipes (1), and the first pedals (2) are located on the front side of the vertical pipes (1); Two first connecting rods (4) are fixedly provided on the inner wall of the channel (101) and are spaced apart from each other. The first connecting rod (4) is a U-shaped rod structure. A rotating sleeve (5) extending in the front-back direction is rotatably provided on the first connecting rod (4). The movable ladder comprises two vertical poles (6) arranged at intervals on the left and right, the lower ends of the vertical poles (6) are movably inserted in a channel (101), the upper ends of the vertical poles (6) extend to the outside of the channel (101), the rotating sleeves (5) of the left and right rows in the same channel (101) are in rolling contact with the left and right sides of the vertical poles (6) respectively, and a second pedal (7) extending in the left and right directions is fixedly connected between the left and right vertical poles (6), and the second pedal (7) is movably inserted in the two channels (101).

7. A light and safe telescopic working ladder according to claim 6, characterized in that: A first anti-slip strip (3) is fixedly provided on the top of the first pedal (2), and a second anti-slip strip (8) is fixedly provided on the top of the second pedal (7).

8. A light and safe telescopic working ladder according to claim 6 or 7, characterized in that: The lifting control device comprises a mounting plate (20) fixed on the riser (1) and a manual winch (21) fixed on the mounting plate (20), wherein a pull rope (19) is connected to the manual winch (21); The vertical pole (6) is a tubular structure extending vertically, and a sealing plate structure is provided at both the upper and lower ends of the vertical pole (6); an L-shaped guide tube (18) is provided on the upper side wall of the vertical pole (6); the upper end of the pull rope (19) passes through the L-shaped guide tube (18) and enters the tube of the vertical pole (6) and is fixedly connected to the sealing plate structure at the lower end of the vertical pole (6); The manual winch (21) comprises a rotatably arranged winding shaft and a turntable (23) fixedly arranged at the end of the winding shaft. The turntable (23) is provided with a plurality of first pin holes arranged at intervals around the winding shaft. A protective plate (22) is fixedly provided on the manual winch (21). The protective plate (22) is provided with a second pin hole that can correspond to any one of the first pin holes on the left and right. Positioning pins (24) are inserted into the first and second pin holes that correspond to the left and right.

9. The portable and safe telescopic ladder for work as claimed in claim 1, characterized in that: The left and right sides of the main ladder are both hinged with diagonal support rods that can swing left and right. The diagonal support rods are telescopic rod structures with adjustable lengths.

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