A self-supporting, modular telescopic insulated ladder

Abstract

This invention relates to the field of insulated ladder support equipment technology, specifically a self-standing, modular telescopic insulated ladder. It includes a support assembly comprising a support portion at the bottom, a first telescopic portion retractably housed within the support portion, and foot pedals spaced upwards from the sides of the support portion and the first telescopic portion; and an anti-tipping assembly comprising a mounting portion detachably connected to one side of the first telescopic portion, a second telescopic portion located on one side of the mounting portion, and a pole binding portion located on one side of the second telescopic portion. This invention features a telescopically retractable support ladder and a multi-tiered ladder, allowing for quick assembly and extension as needed to meet different work height requirements. Its small cross-sectional area and minimal footprint make it suitable for a wider range of applications. The detachably connected anti-tipping assembly secures it to a nearby work platform, ensuring the support assembly remains upright and does not tip over.

Description

Technical Field

[0001] This invention relates to the field of insulated ladder support equipment technology, and in particular to a self-supporting combined telescopic insulated ladder. Background Technology

[0002] Existing live-line working insulated support platforms (insulated boom trucks, insulated maintenance racks, etc.) face limitations in actual operation. Space constraints due to equipment, environment, terrain, and surrounding buildings at the work site (substation) limit the boom's rotation space, preventing the vehicle from reaching the work site. Similarly, the limited space for erecting insulated maintenance racks poses a significant risk of accidental contact with live equipment or surrounding buildings, hindering effective rack erection and ultimately preventing the operation from proceeding. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems that the existing insulating support equipment is limited by the terrain and other environmental factors and is not easy to effectively erect, the present invention is proposed.

[0005] Therefore, one object of the present invention is to provide a self-supporting, combined telescopic insulated ladder.

[0006] To solve the aforementioned technical problem, the present invention provides the following technical solution: a self-supporting, combined, telescopic, insulated ladder, comprising,

[0007] The support assembly includes a support portion at the bottom, a first telescopic portion retractably disposed within the support portion, and foot pedals spaced upwards from the sides of the support portion and the first telescopic portion; and,

[0008] An anti-tipping assembly includes a mounting portion detachably connected to one side of a first telescopic portion, a second telescopic portion disposed on one side of the mounting portion, and a pole binding portion disposed on one side of the second telescopic portion.

[0009] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the support part includes a base at the bottom, a support ladder at the top of the base, and a protective frame at the top of the support ladder.

[0010] The first telescopic part includes a first telescopic rod disposed on the top of the base, a centipede ladder disposed at the end of the first telescopic rod and passable through the protective frame, and a cable hanging ring disposed on the top of the centipede ladder;

[0011] Both the support ladder and the centipede ladder are made of insulating material.

[0012] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the centipede ladder is provided in at least two sets, and a connecting component is provided between adjacent sets of centipede ladders. The connecting component includes annular protrusions respectively provided at the ends of adjacent centipede ladders, a mating block connected to one side of the annular protrusion, and annular groove provided inside the mating block and adapted to the annular protrusion.

[0013] Each set of centipede ladder ends has two sets of annular protrusions and connecting blocks, and the two sets of annular protrusions and connecting blocks are distributed in a circumferential array. Furthermore, there is a notch between the annular protrusion and the non-adjacent connecting block that matches the outer dimensions of the connecting block.

[0014] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, wherein: the foot pedals are spaced apart from bottom to top on the sides of the support ladder and the centipede ladder, and the foot pedals include foot pedals rotatably connected to the sides of the support ladder and the centipede ladder, and support plates disposed on the sides of the support ladder and the centipede ladder near the foot pedals below.

[0015] The shape and size of the foot pedal are adapted to the shape and size of the protective frame.

[0016] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the mounting part includes two sets of mounting plates disposed on one side of the centipede ladder and rotatably connected to each other, a mounting groove disposed on one side of the two sets of mounting plates and adapted to the external dimensions of the centipede ladder, a threaded rod threadedly connected to the end of one set of mounting plates, a strip groove opened at the end of the other set of mounting plates, and an extrusion block disposed at the end of the threaded rod and adapted to the strip groove.

[0017] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the second telescopic part includes a fixed rod disposed on one side of one of the mounting plates, a sliding rod slidably connected to the surface of the fixed rod, slots spaced apart on the surface of the sliding rod, and a locking block disposed on one side of the fixed rod and adapted to the slots.

[0018] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the pole binding part includes a connecting block disposed at the end of the sliding rod and adapted to the surface of the pole, a sleeve disposed on one side of the connecting block, a binding hook slidably connected in the sleeve and adapted to the surface of the pole, and a locking member disposed between the sleeve and the binding hook.

[0019] The binding hook includes a plug that is slidably connected in the plug sleeve and a pull hook connected to the end of the plug and adapted to the surface of the pole;

[0020] The locking component includes a locking rod disposed on one side of the insert, a locking groove disposed at intervals on one side of the insert and adapted to the locking rod, and a return spring disposed between the locking rod and the insert.

[0021] As a preferred embodiment of the self-supporting combined telescopic insulated ladder of the present invention, the anti-tipping component further includes a protective part disposed between the first telescopic part and the pole binding part;

[0022] The protective part includes a first safety belt located at one end of the centipede ladder, a second safety belt located on one side of the binding hook, a first buckle connected between the first safety belt and the second safety belt, a second buckle connected between the second safety belt and the connecting block, a storage component located on the inner side of the centipede ladder end and connected to the first safety belt, and a protective component located on the outer side of the centipede ladder end and connected to the storage component.

[0023] As a preferred embodiment of the self-standing combined telescopic insulated ladder of the present invention, the storage component includes a connecting rod fixedly connected to the inner side of the end of the centipede ladder, a storage tray rotatably connected to the end of the connecting rod, a guide groove provided on one side of the storage tray, a coil spring provided on one side of the connecting rod, and a guide rod provided at the end of the coil spring and matching the guide groove.

[0024] The first safety belt is wound up on one side of the storage tray and connected to the guide rod. The side wall of the centipede ladder is provided with a through groove that is compatible with the first safety belt.

[0025] As a preferred embodiment of the self-standing combined telescopic insulated ladder of the present invention, the protective component includes a ratchet coaxially connected to one side of the storage tray, a slide groove disposed on the side of the centipede ladder, and a blocking block slidably connected in the slide groove and adapted to the ratchet.

[0026] The protective part also includes an adjusting component located on the outside of the centipede ladder and adapted to the blocking block. The adjusting component includes a turntable rotatably connected to the outside of the centipede ladder, an operating handwheel slidably connected to one side of the turntable and adapted to the outer wall of the centipede ladder, a telescopic spring located between the operating handwheel and the turntable, a separating protruding ring located on one side of the operating handwheel, and a conical groove located on the inside of the operating handwheel and matched with the blocking block.

[0027] The blocking block has a tapered surface that matches the tapered groove on the side near the operating handwheel.

[0028] The beneficial effects of the self-standing combined telescopic insulated ladder of the present invention are as follows: The present invention utilizes the cooperation between the telescopic and elongated support components and the anti-tipping components. The support ladder and the centipede ladder can be telescopically stored together, and the centipede ladder can be quickly assembled and extended as needed to meet the needs of different working heights. Its own cross-sectional area is small, and it occupies little space, making it suitable for more usage scenarios. Furthermore, the anti-tipping components can be detachably connected and fixed to the nearest working platform to keep the support components upright and prevent them from tipping over. This solves the problem that insulated support equipment is limited by the terrain and other environmental conditions, making it inconvenient to set up effectively. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0030] Figure 1 This is a three-dimensional structural diagram of the self-supporting, combined telescopic insulated ladder of the present invention.

[0031] Figure 2 This is a three-dimensional structural diagram of the self-supporting, modular, telescopic insulated ladder of the present invention from another perspective.

[0032] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point A shown.

[0033] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at point B shown.

[0034] Figure 5 This is a three-dimensional structural diagram of the self-supporting combined telescopic insulated ladder connection assembly of the present invention after assembly.

[0035] Figure 6 This is a three-dimensional structural diagram of the self-supporting combined telescopic insulated ladder connection assembly of the present invention during assembly.

[0036] Figure 7 This is a three-dimensional structural diagram of the self-supporting combined telescopic insulated ladder anti-tipping component of the present invention.

[0037] Figure 8 This is a side cross-sectional view of the anti-tipping component of the self-supporting combined telescopic insulated ladder of the present invention.

[0038] Figure 9 This is a top cross-sectional view of the self-supporting combined telescopic insulated ladder anti-tipping component of the present invention.

[0039] Figure 10 This is a three-dimensional structural diagram of the protective part of the self-supporting combined telescopic insulating ladder of the present invention.

[0040] Figure 11 This is a three-dimensional structural diagram of the self-supporting combined telescopic insulating ladder adjustment component of the present invention.

[0041] Figure 12 This is a three-dimensional structural diagram of the self-standing combined telescopic insulated ladder storage component of the present invention.

[0042] Figure 13 This is a schematic diagram of the internal structure of the protective section of the self-supporting combined telescopic insulated ladder of the present invention.

[0043] Figure 14 This is a top view cross-sectional structural diagram of the protective section of the self-supporting combined telescopic insulated ladder of the present invention.

[0044] Figure 15 This is a schematic diagram of the protective component at the connection point of the self-standing combined telescopic insulating ladder blocking block and the ratchet in this invention.

[0045] Figure 16 This is a schematic diagram of the protective component at the point where the self-standing combined telescopic insulating ladder blocking block separates from the ratchet of the present invention. Detailed Implementation

[0046] To make the objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Example 1

[0050] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a self-supporting combined telescopic insulated ladder, which includes: a support component 100 and an anti-tipping component 200. The anti-tipping component 200 is detachable and easy to carry. The anti-tipping component 200 can be connected and fixed to the work platform at the nearest point to keep the support component 100 upright and prevent it from tipping over, which is convenient for erection.

[0051] Specifically, the support assembly 100 includes a support portion 101 at the bottom, a first telescopic portion 102 retractable within the support portion 101, and foot pedals 103 spaced upwards from the support portion 101 to the sides of the first telescopic portion 102. The first telescopic portion 102 can be retracted into the support portion 101 when not in use and extends out of the support portion 101 when in use, reducing the footprint and facilitating carrying and use. The foot pedals 103 facilitate climbing for operators.

[0052] Furthermore, the anti-tipping component 200 includes a mounting part 201 detachably connected to one side of the first telescopic part 102, a second telescopic part 202 disposed on one side of the mounting part 201, and a pole binding part 203 disposed on one side of the second telescopic part 202. The second telescopic part 202 and the pole binding part 203 are mounted on the surface of the centipede ladder 102b via the mounting part 201. The second telescopic part 202 is adjusted so that the pole binding part 203 is close to a nearby auxiliary platform such as a pole. After the pole binding part 203 is connected to the pole, the support ladder 101b and the centipede ladder 102b remain upright. Moreover, when multiple sets of pole binding parts 203 are needed to connect at different heights, the second telescopic part 202 can be flexibly adjusted in length according to the distance between each height position and the nearest point on the working platform, making it more flexible and convenient to use.

[0053] The support section 101 includes a base 101a at the bottom, a support ladder 101b at the top of the base 101a, and a protective frame 101c at the top of the support ladder 101b. The first telescopic section 102 includes a first telescopic rod 102a at the top of the base 101a, a centipede ladder 102b at the end of the first telescopic rod 102a that can pass through the protective frame 101c, and a cable loop 102c at the top of the centipede ladder 102b; both the support ladder 101b and the centipede ladder 102b are made of insulating material. In this embodiment, the centipede ladder 102b is a descriptive term and is not a commonly used term by those skilled in the art. It consists of a central cylindrical ladder rod and two foot pedals 103 resembling "centipede legs" on both sides. The protective frame 101c provides support and protection for the centipede ladder 102b. In this embodiment, the first telescopic rod 102a is a common hydraulic rod. The drive mechanism is located near the base 101a and can be driven by foot pedal or hand push, making it convenient for operators to use. The cable hook 102c is located at the top of the centipede ladder 102b, which can assist operators in threading ropes. The cable hook 102c can also be used to attach ropes to the foot pedal 103 for climbing.

[0054] Preferably, foot pedals 103 are spaced apart from bottom to top on the sides of the support ladder 101b and the centipede ladder 102b. Each foot pedal 103 includes a footboard 103a rotatably connected to the side of the support ladder 101b and the centipede ladder 102b, and a support plate 103b located on the side of the support ladder 101b and the centipede ladder 102b near the footboard 103a. The footboard 103a is rotatably connected for easy storage. When in use, the footboard 103a is rotated until it is blocked and supported by the support plate 103b below, allowing for stepping and climbing. When not in use, the footboard 103a is rotated in the opposite direction for storage, reducing space occupation. The shape and size of the footboard 103a are adapted to the shape and size of the protective frame 101c. When not in use, the first telescopic rod 102a is retracted, and the footboard 103a retracts and moves downward with the first telescopic rod 102a. When it moves to the position of the protective frame 101c, it is blocked by the protective frame 101c and automatically flips over for storage, facilitating use.

[0055] When using this device, bring it to the work site, find a suitable position, place the base 101a downwards, and then operate the first telescopic rod 102a to extend it, so that the centipede ladder 102b extends out from the support ladder 101b through the protective frame 101c. Adjust the centipede ladder 102b to a suitable height, and then install the second telescopic part 202 and the pole binding part 203 on the surface of the centipede ladder 102b through the mounting part 201. Adjust the second telescopic part 202 so that the pole binding part 203 is close to the nearest auxiliary platform such as a pole. After the pole binding part 203 is connected to the pole, keep the support ladder 101b and the centipede ladder 102b upright. Then climb up using the foot pedal 103a to carry out the work.

[0056] Example 2

[0057] Reference Figures 1-9 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a specific installation structure for the connecting component 300 and the anti-tipping component 200, which facilitates assembly.

[0058] Specifically, at least two sets of centipede ladders 102b are provided, and a connecting component 300 is provided between adjacent sets of centipede ladders 102b. The connecting component 300 includes annular protrusions 301 respectively disposed at the ends of adjacent centipede ladders 102b, a mating block 302 connected to one side of the annular protrusion 301, and annular grooves 303 disposed inside the mating block 302 and adapted to the annular protrusions 301. In this embodiment, the outer wall of the centipede ladder 102b is cylindrical. By setting the mating block 302 to cooperate with the annular protrusion 301 and the annular groove 303, the mating block 302 of one set of centipede ladders 102b is rotated until the annular protrusion 301 passes into the annular groove 303 of the other set of centipede ladders 102b, which facilitates docking. In this embodiment, the side of the annular protrusion 301 is also provided with a beveled groove, which can facilitate rotating and pressurizing the beveled groove during docking, thereby helping the annular protrusion 301 to pass into the annular groove 303.

[0059] Each set of centipede ladders 102b has two sets of annular protrusions 301 and mating blocks 302 at its ends, and the two sets of annular protrusions 301 and mating blocks 302 are distributed in a circumferential array. A notch 304, matching the external dimensions of the mating block 302, is formed between the annular protrusion 301 and its non-adjacent mating block 302. In this way, the two centipede ladders 102b are mutually restrained in the vertical direction by the annular protrusions 301 and annular grooves 303, and blocked in the horizontal direction by the mating blocks 302 on both sides, achieving rapid installation and fixation.

[0060] Furthermore, the mounting section 201 includes two sets of mounting plates 201a disposed on one side of the centipede ladder 102b and rotatably connected to each other, a mounting groove 201b disposed on one side of the two sets of mounting plates 201a and adapted to the external dimensions of the centipede ladder 102b, a threaded rod 201c threadedly connected to the end of one set of mounting plates 201a, a strip groove 201d formed at the end of the other set of mounting plates 201a, and a pressing block 201e disposed at the end of the threaded rod 201c and adapted to the strip groove 201d. In this embodiment, both the centipede ladder 102b and the mounting groove 201b are circular in shape. The orientation of the second telescopic part 202 on one side of the mounting plate 201a can be adjusted by rotating the mounting plate 201a relative to the centipede ladder 102b, facilitating orientation towards the target utility pole.

[0061] The second telescopic part 202 includes a fixed rod 202a disposed on one side of one of the mounting plates 201a, a sliding rod 202b slidably connected to the surface of the fixed rod 202a, slots 202c spaced at intervals on the surface of the sliding rod 202b, and a locking block 202d disposed on one side of the fixed rod 202a and adapted to the slots 202c. In this embodiment, the second telescopic part 202 can be manually extended and retracted by the sliding rod 202b and the fixed rod 202a, and the most suitable fixing point can be adjusted by the slots 202c spaced at intervals on the surface of the sliding rod 202b. It is fixed by the engagement structure between the commonly used locking block 202d and the slots 202c.

[0062] Furthermore, the pole binding part 203 includes a connecting block 203a disposed at the end of the sliding rod 202b and adapted to the surface of the pole, a sleeve 203b disposed on one side of the connecting block 203a, a binding hook 203c slidably connected within the sleeve 203b and adapted to the surface of the pole, and a locking member 203d disposed between the sleeve 203b and the binding hook 203c; the binding hook 203c includes a strip 203c-1 slidably connected within the sleeve 203b and a pull hook 203c-2 connected to the end of the strip 203c-1 and adapted to the surface of the pole. After the binding hook 203c approaches the connecting block 203a, it can wrap around the target pole together with the connecting block 203a, and can be used for target poles of different sizes and shapes.

[0063] Preferably, the locking member 203d includes a locking rod 203d-1 disposed on one side of the sleeve 203b, a locking groove 203d-2 spaced apart on one side of the insert 203c-1 and adapted to the locking rod 203d-1, and a return spring 203d-3 disposed between the locking rod 203d-1 and the sleeve 203b. In this embodiment, the end of the locking rod 203d-1 is provided with a beveled groove 203d-4, which restricts the sliding of the insert 203c-1 and the sleeve 203b in one direction. As the binding hook 203c approaches the connecting block 203a, the insert 203c-1 can quickly slide within the sleeve 203b. Each locking groove 203d-2 on one side of the insert 203c-1, after passing the inclined groove 203d-4 at the end of the locking rod 203d-1, generates a component force that causes the locking rod 203d-1 to be compressed and the return spring 203d-3 to move upwards, thus preventing obstruction of the sliding between the insert 203c-1 and the sleeve 203b. During the reverse sliding of the insert 203c-1, the contact surface between the end of the locking rod 203d-1 and the locking groove 203d-2 is no longer... The inclined groove 203d-4 does not generate a component force to compress the return spring 203d-3. Therefore, after the locking rod 203d-1 is aligned with a set of locking grooves 203d-2, the elastic force of the return spring 203d-3 will cause the locking rod 203d-1 to engage in the locking groove 203d-2 and fix it, preventing the insert 203c-1 from sliding in the opposite direction. This can prevent the binding hook 203c from loosening from the target pole. Only when it is necessary to disassemble can the locking rod 203d-1 be pulled up so that the insert 203c-1 can slide in the sleeve 203b to separate the binding hook 203c from the target pole.

[0064] The rest of the structure is the same as in Example 1.

[0065] Working principle: When extending the length of one set of centipede ladders 102b via the first telescopic rod 102a is still insufficient to meet the required working height, another set of centipede ladders 102b can be carried along for assembly to increase the height. When assembling the two sets of centipede ladders 102b, first bring their ends close together, aligning the mating block 302 at the end of one set of centipede ladders 102b with the notch 304 at the end of the other set of centipede ladders 102b. Then, bring the ends of the two sets of centipede ladders 102b closer together until they are tightly pressed together. The mating blocks 302 at the ends of both sets of centipede ladders 102b will pass through the other set of centipede ladders 102b. The notch 304 at the end, and when the ends of the centipede ladder 102b come close to each other until they are tightly pressed together, the annular groove 303 on the inner side of the docking block 302 of one set of centipede ladder 102b is aligned with the annular protrusion 301 of the other set of centipede ladder 102b. Then, the newly installed set of centipede ladder 102b is rotated so that the docking block 302 rotates until the annular protrusion 301 enters the annular groove 303. In this way, the annular protrusion 301 and the annular groove 303 limit each other in the vertical direction, and the docking blocks 302 on both sides block each other in the horizontal direction, so as to achieve quick installation and fixation.

[0066] After the new set of centipede ladder 102b is assembled, an anti-tipping component 200 can be installed between the centipede ladder 102b and the nearest utility pole to add safety for subsequent climbing. When installing the anti-tipping component 200, first, the two sets of mutually rotating mounting plates 201a are rotated apart via a rotating shaft to create an opening. The mounting plates 201a are then fitted onto the outer wall of the centipede ladder 102b through this opening. Next, the mounting plates 201a are rotated in the opposite direction to reduce the opening. The opening of the mounting plates 201a decreases until the pressing block 201e of one side of the mounting plate 201a approaches the strip on the other side. The angle of the groove 201d is changed by rotating the threaded rod 201c, so that the pressing block 201e is aligned with the groove 201d. Then, the opening of the mounting plate 201a is reduced to the minimum, so that the mounting groove 201b is tightly attached to the outer wall of the centipede ladder 102b. At this time, the threaded rod 201c is rotated by twisting the pressing block 201e until the pressing block 201e and the groove 201d are misaligned, and the mounting plate 201a is pressed to prevent the two sets of mounting plates 201a from rotating relative to each other, so that the mounting plate 201a is quickly bound to the outer wall of the centipede ladder 102b.

[0067] After locating the target pole, slide the sliding rod 202b relative to the fixed rod 202a. The movement of the sliding rod 202b causes the connecting block 203a to move until the connecting block 203a lands on the target pole. Then, engage and fix the sliding rod 202b and the fixed rod 202a with the locking block 202d via the slot 202c to confirm the position. Next, slide the insert 203c-1 of the binding hook 203c relative to the insert 203b to activate the hook of the binding hook 203c. 203c-2 gradually approaches the side of the connecting block 203a until it is blocked by the target pole. Together with the connecting block 203a, it covers the target pole. At this time, the gap between the end of the hook 203c-2 and the connecting block 203a is not enough to make the target pole fall off. After the position is confirmed, the locking rod 203d-1 on the side of the sleeve 203b and the locking groove 203d-2 on the side of the insert 203c-1 are engaged and fixed to connect the centipede ladder 102b to the target pole to prevent it from tipping over.

[0068] Example 3

[0069] Reference Figures 2-16 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a protective part 204, which can provide protection in case of an accident. This solves the problem that the connection between the connecting component 300 and the anti-tipping component 200 may break or loosen under stress, affecting the safety of the operator.

[0070] Specifically, the anti-tipping component 200 also includes a protective part 204 disposed between the first telescopic part 102 and the pole binding part 203; the protective part 204 includes a first safety belt 204a disposed at one end of the centipede ladder 102b, a second safety belt 204b disposed on one side of the binding hook 203c, a first buckle 204c connected between the first safety belt 204a and the second safety belt 204b, a second buckle 204d connected between the second safety belt 204b and the connecting block 203a, a storage component 204e disposed on the inner side of the end of the centipede ladder 102b and connected to the first safety belt 204a, and a protective component 204f disposed on the outer side of the end of the centipede ladder 102b and connected to the storage component 204e. After the binding hook 203c and connecting block 203a together cover the target pole, the second safety belt 204b is pulled and connected to the connecting block 203a via the second buckle 204d. The target pole is then bound together with the second safety belt 204b, binding hook 203c, and connecting block 203a. The first safety belt 204a and the second safety belt 204b are then pulled and connected via the first buckle 204c. Under normal use, the first safety belt 204a and the second safety belt 204b experience relatively low tension and are not easily damaged. This ensures that in the event of a tipping risk, the well-preserved first safety belt 204a and the second safety belt 204b will provide stable tension and prevent breakage. Both the first buckle 204c and the second buckle 204d are commonly used locking structures, facilitating the disassembly and connection of the first safety belt 204a and the second safety belt 204b. Many common structures are used in existing technology, so specific structures are not shown in the figure.

[0071] Furthermore, the storage component 204e includes a connecting rod 204e-1 fixedly connected to the inner side of the end of the centipede ladder 102b, a storage tray 204e-2 rotatably connected to the end of the connecting rod 204e-1, a guide groove 204e-3 provided on one side of the storage tray 204e-2, a coil spring 204e-4 provided on one side of the connecting rod 204e-1, and a guide rod 204e-5 provided at the end of the coil spring 204e-4 and matching the guide groove 204e-3; the first safety belt 204a is wound up on one side of the storage tray 204e-2 and connected to the guide rod 204e-5, and the side wall of the centipede ladder 102b is provided with a through groove 204e-6 adapted to the first safety belt 204a. The coil spring 204e-4 is a common mechanical part that will contract and tighten under tension and will return to its original state after the tension is removed.

[0072] The protective component 204f includes a ratchet 204f-1 coaxially connected to one side of the storage tray 204e-2, a slide groove 204f-2 disposed on the side of the centipede ladder 102b, and a blocking block 204f-3 slidably connected within the slide groove 204f-2 and adapted to the ratchet 204f-1. The ratchet 204f-1 is a common mechanical part with good unidirectional rotation characteristics. In this embodiment, when the first safety belt 204a retracts, the ratchet 204f-1 rotates in the forward direction, exerting a radial force on the blocking block 204f-3, thereby squeezing out the blocking block 204f-3. Conversely, when the first safety belt 204a is pulled and the ratchet 204f-1 rotates in the reverse direction, a tangential force is exerted on the blocking block 204f-3, preventing it from rotating.

[0073] Preferably, the protective part 204 further includes an adjusting member 204g disposed on the outside of the centipede ladder 102b and adapted to the blocking block 204f-3. The adjusting member 204g includes a turntable 204g-1 rotatably connected to the outside of the centipede ladder 102b, an operating handwheel 204g-2 slidably connected to one side of the turntable 204g-1 and adapted to the outer wall of the centipede ladder 102b, a telescopic spring 204g-3 disposed between the operating handwheel 204g-2 and the turntable 204g-1, a separating protrusion ring 204g-4 disposed on one side of the operating handwheel 204g-2, and a conical groove 204g-5 disposed on the inside of the operating handwheel 204g-2 and matched with the blocking block 204f-3. The blocking block 204f-3 is provided with a conical surface 204g-6 adapted to the conical groove 204g-5 on the side near the operating handwheel 204g-2. By setting the conical groove 204g-5 and the conical surface 204g-6, not only can the oblique extrusion provide the blocking block 204f-3 and the slide 204f-2 with a matching component force, but also the gap between the conical groove 204g-5 and the conical surface 204g-6 can always be the same when the operating handwheel 204g-2 rotates through the turntable 204g-1, making it convenient to use.

[0074] The rest of the structure is the same as in Example 2.

[0075] Working principle: When assembling adjacent sets of centipede ladders 102b, after aligning the connecting block 302 at the end of one set of centipede ladders 102b with the notch 304 at the end of the other set of centipede ladders 102b, when the ends of the two sets of centipede ladders 102b are close together, the connecting block 302 at the end of the lower centipede ladder 102b passes through the notch 304 at the end of the upper centipede ladder 102b and presses against the separating protrusion 204g-4. The separating protrusion 204g-4, under force, presses against the operating handwheel 204g-2, causing the operating handwheel 204g-2 to approach the turntable 204g-1 and compress the telescopic spring 204g-3. This does not obstruct the connection between the annular protrusion 301 and the annular groove 303, and the annular protrusion... After block 301 aligns with annular groove 303, rotate operating handwheel 204g-2 to rotate relative to turntable 204g-1, thereby driving the separating protrusion ring 204g-4 to be positioned on the lower aligning block 302, keeping the telescopic spring 204g-3 compressed; then, after binding hook 203c and connecting block 203a together cover the target pole, pull the second safety belt 204b and connect block 203a to be connected and fixed through second buckle 204d, binding the target pole together with the second safety belt 204b, binding hook 203c, and connecting block 203a; then pull the first safety belt 204a and second safety belt 204b to be connected and fixed through first buckle 204c.

[0076] When the first safety belt 204a and the second safety belt 204b are connected and fixed by the first buckle 204c according to the length of the second telescopic part 202, the separating convex ring 204g-4 is limited by the docking block 302, and the telescopic spring 204g-3 remains in a compressed state. Therefore, the conical groove 204g-5 on the inner side of the operating handwheel 204g-2 does not apply pressure to the blocking block 204f-3 with the conical surface 204g-6. Thus, when the first safety belt 204a is pulled out of the penetrating groove 204e-6, the first safety belt 204a, which is in a coiled state on the side of the storage tray 204e-2, contracts due to the tension, and drives the coil spring 204e-4 to contract. At the same time, the coil spring 204e-4 contracts and drives the guide rod 204e-5 to rotate. The guide rod 204e-5 compresses the guide groove 204e-3 and moves along the guide groove 204e-3 towards the storage tray 204e-2. While moving in the direction of the center of 04e-2, it rotates, thereby driving the storage tray 204e-2 to rotate. The rotation of the storage tray 204e-2 drives the coaxial ratchet 204f-1 to rotate. The rotation of the ratchet 204f-1 is blocked by the tangential force of the blocking block 204f-3. Since the conical surface 204g-6 on the outer side of the blocking block 204f-3 is not squeezed by the conical groove 204g-5 at this time, the first safety belt 204a can be slightly loosened so that it can be rolled back by the coil spring 204e-4. Then the storage tray 204e-2 and the ratchet 204f-1 will rotate in opposite directions. When rotating in opposite directions, the rotation of the ratchet 204f-1 will be squeezed by the blocking block 204f-3, generating a radial component force. After being squeezed, the blocking block 204f-3 will move outward along the slide groove 204f-2 until it no longer blocks the rotation of the ratchet 204f-1. At this time, the first safety belt 204a can be pulled and stretched smoothly.

[0077] After the first safety belt 204a and the second safety belt 204b are connected and fixed, rotating the operating handwheel 204g-2 causes the separating convex ring 204g-4 to rotate without being blocked by the connecting block 302 on one side of the lower centipede ladder 102b. Under the elastic force of the telescopic spring 204g-3 and the downward pulling force of the operator, the separating convex ring 204g-4 will move down between the connecting blocks 302 on one side of the upper and lower centipede ladders 102b, preventing the two connecting blocks 302 from rotating. This causes the annular protrusion 301 to carve out the annular groove 303, causing the upper and lower centipede ladders 102b to detach and separate. At the same time, after the separating convex ring 204g-4 moves down, the operating handwheel 204g-2 and the conical groove 204g-5 will move down, giving the conical surface 204g-6 of the blocking block 204f-3 a squeezing force, causing the blocking block 204f-3 to... -3 moves inward along the slide groove 204f-2 and adaptively squeezes the side wall of the ratchet 204f-1 until it is locked into the nearest ratchet 204f-1 groove, generating tangential resistance to prevent the ratchet 204f-1 from rotating. In this way, during use, if the centipede ladder 102b and the mounting part 201, the mounting part 201 and the second telescopic part 202, or the second telescopic part 202 and the pole binding part 203 accidentally break or loosen, the support ladder 101b and the centipede ladder 102b will have a tendency to tip over, thereby pulling the first safety belt 204a to lengthen. However, since the ratchet 204f-1 is blocked by the blocking block 204f-3 and cannot rotate, the first safety belt 204a cannot be lengthened and its length is fixed. This can prevent the support ladder 101b and the centipede ladder 102b from continuing to tip over, thereby improving the safety protection of the operator.

[0078] In summary, the extendable support component 100, anti-tipping component 200, and connecting component 300 work together to quickly assemble and extend as needed to meet the needs of different working heights. With its small cross-sectional area, it occupies little space and is suitable for more usage scenarios. The anti-tipping component 200 can be detachably connected and fixed to the nearest working platform, and the protective part 204 prevents the connecting component 300 from slipping and the support component 100 from tipping over.

[0079] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0080] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0081] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A self-supporting, modular, telescopic, insulated ladder, characterized in that: include, The support assembly (100) includes a support portion (101) at the bottom, a first telescopic portion (102) retractable within the support portion (101), and foot pedals (103) spaced from bottom to top on the sides of the support portion (101) and the first telescopic portion (102); and, Anti-tipping assembly (200), the anti-tipping assembly (200) includes a mounting part (201) detachably connected to one side of the first telescopic part (102), a second telescopic part (202) disposed on one side of the mounting part (201), and a pole binding part (203) disposed on one side of the second telescopic part (202). The anti-tipping assembly (200) also includes a protective part (204) disposed between the first telescopic part (102) and the pole binding part (203). The protective part (204) includes a first safety belt (204a) disposed at one end of the centipede ladder (102b), a second safety belt (204b) disposed on one side of the binding hook (203c), a first buckle (204c) connected between the first safety belt (204a) and the second safety belt (204b), a second buckle (204d) connected between the second safety belt (204b) and the connecting block (203a), a storage piece (204e) disposed on the inner side of the end of the centipede ladder (102b) and connected to the first safety belt (204a), and a protective piece (204f) disposed on the outer side of the end of the centipede ladder (102b) and connected to the storage piece (204e). The storage component (204e) includes a connecting rod (204e-1) fixedly connected to the inner side of the end of the centipede ladder (102b), a storage tray (204e-2) rotatably connected to the end of the connecting rod (204e-1), a guide groove (204e-3) provided on one side of the storage tray (204e-2), a coil spring (204e-4) provided on one side of the connecting rod (204e-1), and a guide rod (204e-5) provided at the end of the coil spring (204e-4) and matched with the guide groove (204e-3). The first safety belt (204a) is wound up on one side of the storage tray (204e-2) and connected to the guide rod (204e-5). The centipede ladder (102b) has a through groove (204e-6) on its side wall that is adapted to the first safety belt (204a). The protective component (204f) includes a ratchet (204f-1) coaxially connected to one side of the storage tray (204e-2), a slide groove (204f-2) provided on the side of the centipede ladder (102b), and a blocking block (204f-3) slidably connected in the slide groove (204f-2) and adapted to the ratchet (204f-1). The protective part (204) further includes an adjusting component (204g) disposed on the outside of the centipede ladder (102b) and adapted to the blocking block (204f-3). The adjusting component (204g) includes a turntable (204g-1) rotatably connected to the outside of the centipede ladder (102b), an operating handwheel (204g-2) slidably connected to one side of the turntable (204g-1) and adapted to the outer wall of the centipede ladder (102b), a telescopic spring (204g-3) disposed between the operating handwheel (204g-2) and the turntable (204g-1), a separating protruding ring (204g-4) disposed on one side of the operating handwheel (204g-2), and a conical groove (204g-5) disposed on the inside of the operating handwheel (204g-2) and matched with the blocking block (204f-3). The blocking block (204f-3) has a conical surface (204g-6) on the side near the operating handwheel (204g-2) that is adapted to the conical groove (204g-5).

2. The self-supporting, combined telescopic insulated ladder as described in claim 1, characterized in that: The support (101) includes a base (101a) at the bottom, a support ladder (101b) at the top of the base (101a), and a protective frame (101c) at the top of the support ladder (101b). The first telescopic part (102) includes a first telescopic rod (102a) disposed on the top of the base (101a), a centipede ladder (102b) disposed at the end of the first telescopic rod (102a) and passable through the protective frame (101c), and a cable hanging ring (102c) disposed on the top of the centipede ladder (102b). Both the support ladder (101b) and the centipede ladder (102b) are made of insulating material.

3. The self-supporting, combined telescopic insulated ladder as described in claim 2, characterized in that: The centipede ladder (102b) is provided in at least two sets, and a connecting component (300) is provided between adjacent sets of centipede ladders (102b). The connecting component (300) includes annular protrusions (301) respectively provided at the ends of adjacent centipede ladders (102b), a mating block (302) connected to one side of the annular protrusion (301), and annular groove (303) provided inside the mating block (302) and adapted to the annular protrusion (301). Each set of centipede ladders (102b) has two sets of annular protrusions (301) and docking blocks (302) at the end, and the two sets of annular protrusions (301) and docking blocks (302) are distributed in a circular array, and a notch (304) is formed between the annular protrusion (301) and the non-adjacent docking block (302) to match the external dimensions of the docking block (302).

4. The self-supporting, combined telescopic insulated ladder as described in claim 2, characterized in that: The foot pedals (103) are spaced apart from bottom to top on the sides of the support ladder (101b) and the centipede ladder (102b). The foot pedals (103) include foot pedals (103a) rotatably connected to the sides of the support ladder (101b) and the centipede ladder (102b) and a support plate (103b) disposed on the sides of the support ladder (101b) and the centipede ladder (102b) near the foot pedals (103a). The shape and size of the foot pedal (103a) are adapted to the shape and size of the protective frame (101c).

5. The self-supporting, combined telescopic insulated ladder as described in claim 3 or 4, characterized in that: The mounting part (201) includes two sets of mounting plates (201a) disposed on one side of the centipede ladder (102b) and rotatably connected to each other, a mounting groove (201b) disposed on one side of the two sets of mounting plates (201a) and adapted to the external dimensions of the centipede ladder (102b), a threaded rod (201c) threadedly connected to the end of one set of mounting plates (201a), a strip groove (201d) opened at the end of the other set of mounting plates (201a), and an extrusion block (201e) disposed at the end of the threaded rod (201c) and adapted to the strip groove (201d).

6. The self-supporting, combined telescopic insulated ladder as described in claim 5, characterized in that: The second telescopic part (202) includes a fixed rod (202a) disposed on one side of one of the mounting plates (201a), a sliding rod (202b) slidably connected to the surface of the fixed rod (202a), a slot (202c) spaced on the surface of the sliding rod (202b), and a locking block (202d) disposed on one side of the fixed rod (202a) and adapted to the slot (202c).

7. The self-supporting, combined telescopic insulated ladder as described in claim 6, characterized in that: The pole binding part (203) includes a connecting block (203a) disposed at the end of the sliding rod (202b) and adapted to the surface of the pole, a sleeve (203b) disposed on one side of the connecting block (203a), a binding hook (203c) slidably connected in the sleeve (203b) and adapted to the surface of the pole, and a locking member (203d) disposed between the sleeve (203b) and the binding hook (203c); The binding hook (203c) includes a strip (203c-1) that is slidably connected in the sleeve (203b) and a hook (203c-2) that is connected to the end of the strip (203c-1) and adapted to the surface of the pole. The locking element (203d) includes a locking rod (203d-1) disposed on one side of the insert (203b), a locking groove (203d-2) disposed on one side of the insert (203c-1) and adapted to the locking rod (203d-1), and a return spring (203d-3) disposed between the locking rod (203d-1) and the insert (203b).

Images