Safe insulating herringbone ladder

Abstract

The utility model discloses a safe insulating herringbone ladder, which belongs to the technical field of herringbone ladders and comprises a pedal part, a support part, a rotating part, a top pedal and a telescopic fixing rod, one end of the top pedal is rotatably connected with the upper end of the pedal part, the other end of the top pedal is rotatably connected with the upper end of the support part, and the top end of the rotating part is rotatably connected with the bottom end of the support part. The side edge of the rotating part is rotationally connected with one end of the telescopic fixing rod through a bolt, the connecting tightness is adjusted and changed through the bolt, the end, not connected with the rotating part, of the telescopic fixing rod is clamped to the side edge of the rotating part, and the telescopic fixing rod is adjustable in length and sleeved with the bolt on the side face of the lower end of the supporting part after adjustment. The rotating part is rotatably connected with the supporting part, the connecting tightness is adjusted through a bolt, the supporting part is lower than the pedal part, and when the pedal is in a step environment, the rotating part rotates relative to the supporting part to change the height difference between the pedal part and the supporting part so as to meet different height requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of herringbone ladders, and more specifically relates to a safe insulating herringbone ladder. Background Art

[0002] The safety insulated ladder is a ladder designed to protect workers from electric shock during electrical work. It uses advanced technology and materials to ensure the safety of workers in high-voltage environments. The safety insulated ladder also adopts a non-slip design and a stable support structure to ensure that workers can remain stable and safe during the climbing process. However, in large factories, small and medium-sized herringbone ladders often cannot meet the needs. Since electrical maintenance sometimes needs to be carried out in a step-like environment with a variable height, the height needs to be adjusted. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a safe insulating stepladder, which can meet the requirements of safe insulation of the stepladder and is suitable for environments with different heights such as horizontal ground or steps.

[0004] The utility model discloses a safety insulating stepladder, comprising a footrest portion, a support portion, a rotating portion, a top pedal and a telescopic fixing rod, wherein one end of the top pedal is rotatably connected to the upper end of the footrest portion, and the other end is rotatably connected to the upper end of the support portion, the top end of the rotating portion is rotatably connected to the bottom end of the support portion, the side edge of the rotating portion is rotatably connected to one end of the telescopic fixing rod through a bolt, and the connection tightness is changed by adjusting the bolt, the end of the telescopic fixing rod not connected to the rotating portion is clamped on the side edge of the rotating portion, the telescopic fixing rod can be adjusted in length, after adjustment, the telescopic fixing rod is sleeved into the bolt on the side surface of the lower end of the support portion, and is rotatably connected to the support portion, and the connection tightness is adjusted by the bolt, and the height of the support portion is lower than the footrest portion.

[0005] As a further improvement of the utility model, the footrest portion includes a pair of ladder frames, a pair of handrails, a plurality of steps and a connecting plate, the two ends of one side of the plurality of steps are respectively fixedly connected to the pair of ladder frames, the two ends of one side not connected to the ladder frames are respectively fixedly connected to the pair of handrails, the connecting plate is respectively fixedly connected to the upper ends of the pair of ladder frames and the pair of handrails, the connection between the ladder frames and the handrails is strengthened, and assistance is provided when people climb the ladder.

[0006] As a further improvement of the utility model, the telescopic fixing rod includes a rotating rod and a telescopic rod. One end of the rotating rod is rotatably connected to the side of the rotating part, and the tightness is adjusted by a bolt. The other end of the rotating rod is provided with a slide groove. The telescopic rod is placed in the slide groove of the rotating rod and is slidably connected to the rotating rod.

[0007] As a further improvement of the utility model, pushable buckles are provided on both sides of the telescopic rod, and through holes matching the buckles are provided on both sides of the rotating rod. After the telescopic rod slides out of the rotating rod for a certain distance, the buckles are inserted into the through holes of the rotating rod, and the telescopic rod is fixedly connected to the rotating rod.

[0008] As a further improvement of the utility model, the support part and the rotating part each include a pair of ladder legs and a plurality of connecting ribs, and each pair of ladder legs are fixedly connected to the two ends of the plurality of connecting ribs to enhance the connection strength of the herringbone ladder and ensure safety.

[0009] As a further improvement of the utility model, a pair of insulating feet are respectively provided at the bottom of the footrest part and the bottom of the rotating part, and the two pairs of insulating feet are respectively fixedly connected to the bottom of the ladder frame and the bottom of the ladder legs of the rotating part, thereby improving the anti-slip insulation ability of the herringbone ladder.

[0010] As a further improvement of the present invention, at least two pairs of stable bases are provided on the side of the rotating part, and each pair of stable bases is fixedly connected to a pair of ladder leg sides of the rotating part. After the rotating part rotates, the stable bases are placed on the ground to support the rotating part, thereby increasing the contact area between the stepladder and the ground and playing a role in preventing slipping and unstable center of gravity.

[0011] As a further improvement of the present invention, the height range of the rotating part is 65-150 mm, which matches the height of conventional steps and is suitable for operation in most environments with stairs.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: a support part and a rotating part are provided on one side of the herringbone ladder, and the height of one side of the herringbone ladder can be adjusted by the rotating connection between the rotating part and the supporting part, so as to be suitable for environments with different heights of the ground of staircase-like ladders; the footrest part is provided with a handrail fixedly connected to the ladder frame, which assists people when climbing the ladder; the telescopic fixing rod comprises a rotating rod and a telescopic rod, one end of the rotating rod is rotatably connected to the side of the rotating part, and the other end of the rotating rod is provided with a sliding groove, the telescopic rod is placed in the sliding groove of the rotating rod and is slidably connected with the rotating rod, so as to strengthen the connection between the rotating part and the supporting part and improve the stability; pressable buckles are provided on both sides of the telescopic rod, and through holes matching the buckles are provided on both sides of the rotating rod, and after the telescopic rod slides out of the rotating rod for a certain distance, the buckles are inserted into the through holes of the rotating rod, and the telescopic rod is fixedly connected to the rotating rod. The connection strength between the telescopic rod and the rotating rod is ensured to prevent the telescopic rod from slipping and shrinking, causing the stepladder to slide; the support part and the rotating part each include a pair of ladder legs and a number of connecting ribs, and each pair of ladder legs is fixedly connected to the two ends of the connecting ribs to strengthen the connection strength of the stepladder and ensure safety; a pair of insulating ground feet are respectively provided at the bottom of the footrest part and the rotating part, and the two pairs of insulating ground feet are respectively fixedly connected to the bottom of the ladder frame and the bottom of the ladder legs of the rotating part to improve the anti-slip insulation ability of the stepladder; no less than two pairs of stable bases are provided on the side of the rotating part. After the rotating part rotates, the stable base is placed on the ground to support the rotating part, thereby increasing the contact area between the stepladder and the ground and playing a role in anti-slip and anti-instability of the center of gravity; the height range of the rotating part is 65-150mm, which matches the height of conventional steps and is suitable for operation in most environments with stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the pedal structure of the utility model;

[0015] Figure 3 It is a cross-sectional schematic diagram of the telescopic fixing rod of the utility model;

[0016] Figure 4 It is a schematic diagram of the utility model being used on a horizontal ground.

[0017] Description of the numbers in the figure:

[0018] Footrest part 1; ladder frame 1-1; handrail 1-2; ladder step 1-3; connecting plate 1-4; supporting part 2; rotating part 3; stable base 3-1; top pedal 4; telescopic fixing rod 5; rotating rod 5-1; telescopic rod 5-2; buckle 5-3; ladder leg 6; connecting rib 7; insulating foot 8. DETAILED DESCRIPTION

[0019] Specific embodiment 1: Please refer to Figure 1-4 The utility model relates to a safe insulating stepladder, comprising a footrest portion 1, a support portion 2, a rotating portion 3, a top pedal 4 and a telescopic fixing rod 5, one end of the top pedal 4 is rotatably connected to the upper end of the footrest portion 1, and the other end is rotatably connected to the upper end of the support portion 2, the top end of the rotating portion 3 is rotatably connected to the bottom end of the support portion 2, the side of the rotating portion 3 is rotatably connected to one end of the telescopic fixing rod 5 by a bolt, and the connection tightness is changed by adjusting the bolt, the end of the telescopic fixing rod 5 not connected to the rotating portion 3 is clamped on the side of the rotating portion 3, the telescopic fixing rod 5 can adjust the length, after adjustment, the telescopic fixing rod 5 is inserted into the side bolt of the lower end of the support portion 2, and is rotatably connected to the support portion 2 and the connection tightness is adjusted by the bolt, and the height of the support portion 2 is lower than the footrest portion 1.

[0020] In the above embodiment, Figure 2 As shown, the footrest portion 1 includes a pair of ladder frames 1-1, a pair of handrails 1-2, a plurality of steps 1-3 and a connecting plate 1-4, the two ends of one side of the plurality of steps 1-3 are respectively fixedly connected to the pair of ladder frames 1-1, the two ends of one side not connected to the ladder frames 1-1 are fixedly connected to the pair of handrails 1-2, the connecting plate 1-4 is respectively fixedly connected to the upper ends of the pair of ladder frames 1-1 and the pair of handrails 1-2, to strengthen the connection between the ladder frames 1-1 and the handrails 1-2, and to assist people when climbing the ladder.

[0021] In the above embodiment, Figure 3The telescopic fixing rod 5 comprises a rotating rod 5-1 and a telescopic rod 5-2. One end of the rotating rod 5-1 is rotatably connected to the side of the rotating part 3 and the tightness is adjusted by a bolt. The other end of the rotating rod 5-1 is provided with a sliding groove, and the telescopic rod 5-2 is placed in the sliding groove of the rotating rod 5-1 and is slidably connected to the rotating rod 5-1. Pressable buckles 5-3 are provided on both sides of the telescopic rod 5-2, and through holes matching the buckles are provided on both sides of the rotating rod 5-1. After the telescopic rod 5-2 slides out of the rotating rod 5-1 for a certain distance, the buckles 5-3 are snapped into the through holes of the rotating rod 5-1, and the telescopic rod 5-2 is fixedly connected to the rotating rod 5-1. The support part 2 is provided with a bolt, and the other end of the telescopic rod 5-2 can be inserted into a screw and rotatably connected to the support part 2, and is fixedly connected to the support part 2 by the bolt. After the connection between the telescopic rod 5-2 and the support part 2 is disconnected, press the buckles 5-3 on both sides, slide the telescopic rod 5-2 in the direction of the rotating rod 5-1, and put the telescopic rod 5-2 back in the rotating rod 5-1.

[0022] In the above embodiment, Figure 1 As shown, the support part 2 and the rotating part 3 each include a pair of ladder legs 6 and a plurality of connecting ribs 7. Each pair of ladder legs 6 is fixedly connected to the two ends of the plurality of connecting ribs 7 to enhance the connection strength of the ladder and ensure safety.

[0023] In the above embodiment, Figure 1 As shown, a pair of insulating feet 8 are respectively provided at the bottom of the footrest part 1 and the rotating part 3, and the two pairs of insulating feet 8 are respectively fixedly connected to the bottom of the ladder frame 1-1 and the bottom of the ladder leg 6 of the rotating part 3, so as to improve the anti-slip insulation ability of the stepladder.

[0024] In the above embodiment, Figure 3 As shown, at least two pairs of stable bases 3-1 are provided on the side of the rotating part 3, and each pair of stable bases 3-1 is fixedly connected to the side of a pair of ladder legs 6 of the rotating part 3. After the rotating part 3 rotates, the stable bases 3-1 are placed on the ground to support the rotating part 3, thereby increasing the contact area between the ladder and the ground, and playing a role in preventing slipping and unstable center of gravity.

[0025] Preferably, the height of the rotating part 3 ranges from 65 to 150 mm, which matches the height of conventional steps and is suitable for operation in most environments with stairs.

[0026] When used on a horizontal ground, the ladder legs 6 of the support portion 2 and the rotating portion 3 are located on the same straight line, forming a straight body relative to the footrest portion 1. The footrest portion 1 and the straight body are adjusted to a suitable angle to stand on the ground for work; when used in an environment with stairs, the rotating portion 3 is rotated by adjusting the bolts to make the stable base 3-1 on the side of the rotating portion 3 parallel to the step surface, the telescopic rod 5-2 is pulled out until the buckle 5-3 is inserted into the through hole of the rotating rod 5-1 to complete the fixation, the rotating telescopic fixing rod 5 is rotated and sleeved on the bolts on the side of the support portion 2 and fixed, and the footrest portion 1 and the rotating portion 3 are adjusted to a suitable angle to stand on step surfaces of different heights for work.

Claims

1. A safe insulating stepladder, characterized by: The utility model comprises a pedal part (1), a support part (2), a rotating part (3), a top pedal (4) and a telescopic fixing rod (5), wherein one end of the top pedal (4) is rotatably connected to the upper end of the pedal part (1), and the other end is rotatably connected to the upper end of the support part (2); the top end of the rotating part (3) is rotatably connected to the bottom end of the support part (2); the side of the rotating part (3) is rotatably connected to one end of the telescopic fixing rod (5) by a bolt, and the tightness of the connection is adjusted by the bolt; the end of the telescopic fixing rod (5) not connected to the rotating part (3) is clamped to the side of the rotating part (3); the length of the telescopic fixing rod (5) is adjustable; after adjustment, the telescopic fixing rod (5) is inserted into the bolt on the side of the lower end of the support part (2), and is rotatably connected to the support part (2), and the tightness of the connection is adjusted by the bolt; the height of the support part (2) is lower than the pedal part (1).

2. A safety insulating stepladder according to claim 1, characterized in that: The footrest portion (1) comprises a pair of ladder frames (1-1), a pair of handrails (1-2), a plurality of steps (1-3) and a connecting plate (1-4); two ends of one side of the plurality of steps (1-3) are respectively fixedly connected to the pair of ladder frames (1-1), two ends of the other side are respectively fixedly connected to the pair of handrails (1-2); the connecting plate (1-4) is respectively fixedly connected to the upper ends of the pair of ladder frames (1-1) and the pair of handrails (1-2), so as to strengthen the connection between the ladder frames (1-1) and the handrails (1-2).

3. A safe insulating stepladder according to claim 1, characterized in that: The telescopic fixing rod (5) comprises a rotating rod (5-1) and a telescopic rod (5-2), and the tightness is adjusted by means of a bolt. One end of the rotating rod (5-1) is rotatably connected to the side of the rotating portion (3), and the other end of the rotating rod (5-1) is provided with a sliding groove. The telescopic rod (5-2) is placed in the sliding groove of the rotating rod (5-1) and is slidably connected to the rotating rod (5-1).

4. A safety insulating stepladder according to claim 3, characterized in that: The telescopic rod (5-2) is provided with pushable buckles (5-3) on both sides, and the rotating rod (5-1) is provided with through holes matching the buckles on both sides. After the telescopic rod (5-2) slides out of the rotating rod (5-1) for a certain distance, the buckles (5-3) snap into the through holes of the rotating rod (5-1), and the telescopic rod (5-2) is fixedly connected to the rotating rod (5-1).

5. The safety insulating stepladder according to claim 1, characterized in that: The support portion (2) and the rotating portion (3) each comprise a pair of ladder legs (6) and a plurality of connecting ribs (7), and each pair of ladder legs (6) is fixedly connected to the two ends of the plurality of connecting ribs (7).

6. The safety insulating stepladder according to claim 1, characterized in that: A pair of insulating feet (8) are respectively provided at the bottom of the footrest portion (1) and the bottom of the rotating portion (3), and the two pairs of insulating feet (8) are respectively fixedly connected to the bottom of the ladder frame (1-1) and the bottom of the ladder leg (6) of the rotating portion (3).

7. The safety insulating stepladder according to claim 1, characterized in that: At least two pairs of stable bases (3-1) are provided on the side of the rotating part (3), and each pair of stable bases (3-1) is fixedly connected to the side of a pair of ladder legs (6) of the rotating part (3). After the rotating part (3) rotates, the stable bases (3-1) are placed on the ground to support the rotating part (3).

8. The safety insulating stepladder according to claim 1, characterized in that: The height of the rotating part (3) ranges from 65 to 150 mm.

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