CN219801677U - Maintenance platform of circuit pole tower - Google Patents

Abstract

The utility model provides an overhaul platform of a circuit pole tower, relates to the technical field of electric overhaul, and is used for solving the technical problems of difficulty in considering the safety and portability of the circuit pole tower. The maintenance platform comprises a foldable frame, pedals and pull rods, wherein the two ends of the foldable frame are arranged at intervals and are detachably and fixedly connected with the circuit pole tower, the pedals are paved on the foldable frame and are detachably and fixedly connected with the foldable frame, the two ends of the pull rods are detachably and fixedly connected with the foldable frame and the circuit pole tower respectively, and the pull rods are obliquely arranged relative to the foldable frame. The foldable frame and the pull rod are connected with the line pole tower so as to ensure the stability of the overhaul platform, and the foldable frame is provided with the pedal to form the overhaul platform so as to allow an overhaul worker to stand for overhaul operation, so that the safety is high. The foldable frame, the pull rod and the pedal are all detachably connected, and the foldable frame can be folded to reduce occupied space and is convenient to carry.

Description

Maintenance platform of circuit pole tower

Technical Field

The utility model relates to the field of electric power overhaul, in particular to an overhaul platform of a circuit pole tower.

Background

The line towers support the overhead conductors and the overhead ground wires and enable buildings with sufficient safety distances between the overhead conductors and the overhead conductors, between the overhead conductors and the overhead ground wires, and between the overhead conductors to the ground and the crossing spans, which are important for routine maintenance and overhaul work as support points for the overhead lines. Line towers typically include an iron tower that includes a plurality of angle irons, such as equilateral or composite angle irons, with a coarse bolt-fixing connection for connection between the angle irons such that the iron tower forms a space truss structure.

The heights of the line towers are generally related to terrains, spans, voltage levels and the like, wherein the heights of the line towers of 500KV lines are 25-40 meters, the heights of the line towers of 220KV lines are about 20 meters, the heights of the line towers of 110KV lines are about 15 meters, and the heights of the line towers of 35KV lines and below are about 9-15 meters. When the line pole tower overhauls, especially when the line pole tower overhauls of 35KV and below circuit, overhauling personnel hang in the line pole tower through the safety belt, overhauls the operation, adopts the safety belt, easily carries, but inefficiency and potential safety hazard are big.

Disclosure of Invention

In view of the above problems, the embodiment of the utility model provides an overhaul platform for a line pole tower, which is used for improving overhaul safety and considering portability of the overhaul platform.

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

the embodiment of the utility model provides an overhaul platform for a line pole tower, which comprises a foldable frame, pedals and pull rods, wherein the two ends of the foldable frame are arranged at intervals and are detachably and fixedly connected with the line pole tower, the pedals are paved on the foldable frame and are detachably and fixedly connected with the foldable frame, the two ends of the pull rods are detachably and fixedly connected with the foldable frame and the line pole tower respectively, and the pull rods are obliquely arranged relative to the foldable frame.

In some possible embodiments, the foldable frame includes a plurality of rims, and a joint locking device connected to adjacent rims, and the joint locking device is fixed between the plurality of rims when in a locked state.

In some possible embodiments, the plurality of frames include a first frame and second frames respectively disposed at two sides of the first frame, and one end of the first frame and one end of each of the second frames opposite to each other are provided with the joint locking device.

In some possible embodiments, the articulation locking device comprises:

a rotating shaft;

the two rotating bearings are sleeved on the rotating shaft and fixedly connected with the rotating shaft, and the two rotating bearings are respectively and fixedly connected to the first frame and the second frame;

the chuck is sleeved on the rotating shaft and fixedly connected with the rotating shaft, is positioned between the two rotating bearings, and is provided with a plurality of rotation stopping grooves arranged at intervals on the peripheral surface;

a base provided on the first frame or the second frame, the base having a receiving chamber and a first opening communicating with the receiving chamber, the first opening being opposite to an outer peripheral surface of the chuck;

the first end of the spring is fixedly connected with the bottom wall of the accommodating cavity;

the anti-rotation block is fixedly connected to the second end of the spring, extends outwards from the base and abuts against the chuck, and when the anti-rotation block is located in the anti-rotation groove, the joint locking device is in a locking state.

In some possible embodiments, the pedal has a plurality of steps, and at least two ends of the plurality of steps have hollowed-out areas, and the hollowed-out areas are opposite to the first frame;

the two ends of the buckle penetrate through the hollow area and are respectively positioned at the two sides of the first frame, and the two ends of the buckle are locked; or, the buckle is sleeved on the first frame, two ends of the buckle penetrate through the hollowed-out area, and two ends of the buckle are locked.

In some possible embodiments, the service platform further comprises a support structure detachably and fixedly connected to the foldable frame;

the support structure comprises two support rods which are crossed and fixedly connected, and mounting plates which are rotatably connected to two ends of each support rod;

the mounting plates are provided with second through holes, and the surfaces of the mounting plates at the two ends of each supporting rod are respectively attached to the surfaces of the corresponding first frames and the surfaces of the second frames;

the first frame and the second frame are provided with first threaded holes, and the threaded fasteners penetrate through the second through holes and are in threaded connection with the corresponding first threaded holes.

In some possible embodiments, the support rod is a telescoping rod.

In some possible embodiments, the service platform further comprises: and the safety locks are used for fixing two adjacent guardrails to each other.

In some possible embodiments, a first sleeve and a second sleeve are respectively arranged on one side, close to each other, of the two guardrails, and the first sleeve and the second sleeve are arranged along a first direction;

the safety lock is a limiting rod penetrating through the first sleeve and the second sleeve, and one end of the limiting rod is erected on a port, far away from one of the frames, of the first sleeve and the second sleeve.

In some possible embodiments, the foldable frame and the pull rod are made of aluminum alloy.

In the overhaul platform of the circuit pole tower, the foldable frame and the pull rod are detachably and fixedly connected with the circuit pole tower, the pull rod is inclined relative to the foldable frame, and the pull rod forms an inclined support, so that stable connection is formed between the overhaul platform and the circuit pole tower. The footboard is laid on collapsible frame and with collapsible frame detachable fixed connection, forms the maintenance operation platform to the maintainer stands, overhauls the work, improves the security that the circuit shaft tower overhauld. The foldable frame, the pedal and the pull rod are all detachably connected, so that the foldable frame is convenient to install and detach, can be folded and placed, is compact in structure, reduces the occupied space and is convenient to carry along with a vehicle.

In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above, other technical problems that can be solved by the maintenance platform for a line pole tower provided by the embodiment of the present utility model, other technical features included in the technical solutions, and beneficial effects caused by the technical features are described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of an access platform and a line tower according to an embodiment of the present utility model;

FIG. 2 is a top view of an access platform and a line tower according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of an inspection platform according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a foldable frame according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a pedal according to an embodiment of the present utility model;

fig. 6 is an assembled schematic view of an inspection platform according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a line tower; 2-an overhaul platform;

20-a collapsible frame; 21-a first bezel;

22-a second bezel; 30-pulling a rod;

40-pedal; 41-hollow areas;

50-a support structure; 60-guard rail.

Detailed Description

The inventor researches and discovers that the safety and portability in the related art are difficult to consider, and the reason is that: most of the line towers in mountainous regions, especially the line towers of 35KV and below, are positioned at a half hillside position, and maintenance operation is difficult to carry out by using a lifting platform with high safety. When the safety belt hanging circuit pole tower easy to carry is adopted for maintenance operation, the maintenance position has insufficient standing space, and maintenance personnel easily have the conditions of unstable gravity center, forward leaning of the body and the like so as to fall from the circuit pole tower, so that potential safety hazards exist. In addition, there is certain distance between the arrester, the isolation switch etc. of part of terminal tower and this terminal tower, and the maintainer is inconvenient to carry out maintenance work, and maintenance efficiency is low.

Therefore, the embodiment of the utility model provides an overhaul platform for a line pole tower, which comprises a foldable frame, a pull rod and a pedal, wherein the foldable frame and the pull rod are connected with the line pole tower, and the pull rod is obliquely cut relative to the foldable frame to form an oblique support, so that the overhaul platform is stable. The footboard is laid on collapsible frame and forms maintenance work platform to the maintainer stands, carries out maintenance work, improves the security that the circuit shaft tower overhauld. The foldable frame, the pedals and the pull rods are all detachably connected, and the foldable frame can be folded and placed, so that the foldable bicycle is compact in structure and convenient to carry along with a bicycle.

In order to make the above objects, features and advantages of the embodiments of the present utility model more comprehensible, the technical solutions of the embodiments of the present utility model will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, an embodiment of the present utility model provides an overhaul platform 2 of a line tower 1, where the overhaul platform 2 (as shown in a dashed frame in fig. 2) is installed on a side surface of the line tower 1, so as to ensure overhaul efficiency and overhaul safety of the line tower 1. The service platform 2 comprises a collapsible frame 20, pedals 40 and tie rods 30.

Wherein, the two ends of the foldable frame 20 are arranged at intervals and are detachably and fixedly connected with the circuit tower 1 to provide support for the pedals 40. The pedal 40 is paved on the foldable frame 20 and is detachably and fixedly connected with the foldable frame 20 to form an overhaul operation platform for an overhaul worker to stand up for overhaul, so that the overhaul safety of the circuit pole tower 1 is improved. The both ends of pull rod 30 respectively with collapsible frame 20 and the removable fixed connection of circuit shaft tower 1, and pull rod 30 is relative collapsible frame 20 slope, and pull rod 30 forms the bearing diagonal relatively collapsible frame 20 to further fix collapsible frame 20 with circuit shaft tower 1, improve the stability of maintenance platform 2, guarantee the security that the cable shaft tower overhauld. Meanwhile, the foldable frame 20, the pedals 40 and the pull rods 30 are detachably connected, the foldable frame 20, the pedals 40 and the pull rods can be detached and assembled, and the foldable frame 20 can be folded and placed, so that the foldable bicycle is compact in structure and convenient to carry along a bicycle.

Specifically, the two ends of the foldable frame 20 are spaced apart to form a second opening, which is opposite to the line tower 1, that is, the second opening faces the line tower 1. So arranged, on the one hand, it is convenient to connect the two-end foldable frame 20 of the foldable frame 20 with the line tower 1, and on the other hand, the foldable frame 20 is bent to form a supporting plane, for example, a horizontal plane, to support the step 40. Illustratively, the collapsible frame 20 is in the form of a "V" or "".

Referring to fig. 3 to 5, both ends of the foldable frame 20 are detachably and fixedly connected with the line tower 1, respectively, to achieve the installation and the removal of the foldable frame 20 from the line tower 1. When the foldable frame 20 is connected with the line tower 1, the foldable frame 20 and the line tower 1 are relatively fixed, so that the stability of the overhaul platform 2 is ensured.

Illustratively, as shown in fig. 3, the line tower 1 is an iron tower, and angle steel buckles are respectively arranged at two ends of the foldable frame 20 and clamp angle steel of the iron tower, so that the foldable frame 20 is fixedly connected with the cable tower. Wherein, angle steel buckle one end is rotated with collapsible frame 20 and is connected or pass through bulb joint bearing universal connection, and the other end of angle steel buckle has the bottom plate to and be located two splint that set up relatively on the bottom plate, at least one splint is provided with the second screw hole. When two sides of the angle steel are respectively propped against the clamping plate and the bottom plate, the bolts enter from the second threaded holes of the other clamping plate, and the sides of the angle steel are pressed with the corresponding clamping plates, so that the fixation between the foldable frame 20 and the iron tower is realized.

The foldable frame 20 includes a plurality of rims and a joint locking device connecting the adjacent rims. The number of the frames can be two or more, and the frames are sequentially connected end to end through the joint locking device to form a whole. When the joint locking device is in a locked state, the plurality of rims are fixed, and the shape of the foldable frame 20 is determined; when the joint locking device is in an unlocking state, the frames can rotate relatively, and the included angle between the adjacent frames can be adjusted to be matched with the circuit tower 1.

In some examples, referring to fig. 4, the plurality of frames includes a first frame 21 (a lateral frame), and second frames 22 (vertical frames) respectively disposed at both sides of the first frame 21. I.e. the number of frames is three, the first frame 21 is far away from the line tower 1, and the second frame 22 is connected with the cable tower.

The opposite ends of the first frame 21 and each second frame 22 are provided with joint locking devices, and the two second frames 22 are foldable relative to the first frame 21, as shown in fig. 4, and both the two second frames 22 can be folded inwards. When the maintenance platform 2 is installed, the first frame 21 and the second frame 22 are pulled to be perpendicular to each other.

In some possible implementations, the articulation locking mechanism includes a shaft, a rotational bearing, a chuck, a base, a spring, and a rotational stop. Wherein, the pivot is gone up to overlap and is equipped with two rolling bearing, and two rolling bearing all with pivot fixed connection. The two rotary bearings are fixedly connected with the first frame 21 and the second frame 22 respectively. For example, the first frame 21 and the second frame 22 are provided with corresponding third through holes, and the rotating bearing is fixedly connected (welded, interference fit, etc.) with the third through holes.

The chuck is sleeved on the rotating shaft and is fixedly connected with the rotating shaft. The chuck is located between two rotational bearings, for example, in contact between the two rotational bearings and the chuck. The outer peripheral surface of the chuck is provided with a plurality of rotation stopping grooves which are arranged at intervals. The chuck may be a cylinder, for example, in which the plurality of rotation stopping grooves are provided on a cylindrical surface.

The base is disposed on the first frame 21 or the second frame 22, and the base has a receiving cavity and a first opening communicating with the receiving cavity, the first opening being opposite to an outer circumferential surface of the chuck. The base may include a bottom wall and a side wall connected to the bottom wall, the side wall and the bottom wall enclosing to form a receiving cavity, and an end of the side wall remote from the bottom wall forming a first opening.

The spring sets up in holding the intracavity, and the first end of spring and hold the diapire fixed connection in chamber (or offset), the second end and the rotation-stopping piece fixed connection (or offset of spring). The rotation stopping block extends outwards from the opening of the base and abuts against the chuck, and when the rotation stopping block is positioned in the rotation stopping groove, the joint locking device is in a locking state. The rotating shaft is rotated, the spring is compressed, and the rotation stopping block is separated from one rotation stopping groove and slides to the next rotation stopping groove, so that the joint locking device is in a locking state again.

Referring to fig. 3, 5 and 6, the pedals 40 provide a supporting platform for an inspector, and the pedals 40 may have a plurality of adjacent pedals 40 or a predetermined interval. As the height of the line tower 1 increases, the width of the line tower 1 decreases, and the interval between both ends of the foldable frame 20 for connection with the line tower 1 also decreases. As shown in fig. 5, when the foldable frame 20 includes the first and second rims 21 and 22, the width of the foldable frame 20 is changed, that is, the distance between the first rim 21 and the line tower 1 is changed. The plurality of pedals 40 are disposed along the width of the foldable frame 20, that is, the plurality of pedals 40 are disposed along the second rims 22, and they are disposed on the two second rims 22, and the number and the interval of the pedals 40 can be adjusted according to the distance between the first rims 21 and the line tower 1.

In order to fix the pedals 40 and the second frame 22, as shown in fig. 6, at least two ends of the pedals 40 have hollow areas 41, and the hollow areas 41 are opposite to the first frame; the two ends of the buckle penetrate through the hollow area 41 and are respectively positioned at the two sides of the first frame, and the two ends of the buckle are locked; alternatively, the buckle is sleeved on the first frame, and two ends of the buckle are penetrated in the hollow area 41 and locked.

The two ends of each pedal 40 have a hollowed-out area 41, the hollowed-out area 41 at one end is opposite to one first frame 21, and the hollowed-out area 41 at the other end is opposite to the other first frame 21. In some examples, the entire area of the pedals 40 is a hollowed-out area 41, that is, the pedals 40 include a plurality of criss-cross metal strips, so as to reduce the weight of the pedals 40 and have an anti-skid effect.

The clasp may be a U-shaped piece. In some examples, two ends of the buckle are respectively inserted into different holes of the hollowed-out area 41, so that a part of the pedal 40 is arranged between the two ends of the buckle, and the buckle is sleeved on the pedal 40. Both ends of the buckle are respectively positioned at both sides of the corresponding first frame 21, namely the first frame 21 is positioned in the buckle. Both ends of the buckle are locked to lock one end of the pedal 40 with the corresponding first frame 21. The two ends of the buckle can be screwed together to be locked; or the two ends of the buckle are respectively penetrated in the lock catches to be locked; or both ends of the buckle are bent outwards to be attached to the surface of the pedal 40.

In other examples, the buckle is sleeved on the first frame 21, and two ends of the buckle respectively penetrate through different holes of the hollowed-out area 41. The two ends of the buckle are close to the pedal 40, and the two ends of the buckle are locked to lock one end of the pedal 40 with the corresponding first frame 21. For example, the two ends of the clasp may be screwed together.

With continued reference to fig. 3, a tie rod 30 is connected at one end to the line tower 1 and at the other end to the collapsible frame 20, for example to the first frame 21, to further provide support to the service platform 2. The angle steel buckles are connected to the two ends of the pull rod 30 and are in universal connection with the pull rod 30, so that the pull rod 30 is connected with the foldable frame 20 and the pull rod 30 is connected with the line tower 1, the angle between the pull rod 30 and the foldable frame 20 and the angle between the pull rod 30 and the line tower 1 can be adjusted, and the installation is flexible. The two pull rods 30 can be arranged to improve the uniformity of the stress of the overhaul platform 2, reduce the stress of each pull rod 30 and ensure the reliability of connection.

It will be appreciated that one end of the pull rod 30 is connected with the line tower 1, both ends of the foldable frame 20 are connected with the line tower 1, and the pull rod 30 is obliquely arranged relative to the foldable frame 20 to form an inclined support, so that stable connection is formed between the maintenance platform 2 and the line tower 1. For example, the foldable frame 20 includes a first frame 21 and a second frame 22, and the second frame 22, the pull rod 30 and the side edges of the angle steel of the line tower 1 form a triangle, so as to achieve a stabilizing effect.

After the frames of the foldable frame 20 are relatively fixed, in order to improve stability among the frames and reduce deformation of the foldable frame 20, the maintenance platform 2 further comprises a supporting structure 50, the supporting structure 50 comprises a plurality of supporting rods, two ends of each supporting rod are detachably and fixedly connected with two adjacent frames respectively, so that the two adjacent frames and the supporting rods connecting the two frames form triangular stable support.

The support structure 50 includes two support rods that are crossed and fixedly connected, and a mounting plate rotatably connected to both ends of each support rod, as shown in fig. 4. The two support rods can rotate relatively, the two support rods are provided with opposite mounting holes, and after pins or threaded fasteners are arranged in the mounting holes, the two support rods are fixed relatively.

The mounting panel rotates the both ends of connecting at every bracing piece, and the mounting panel surface is laminated with the surface of corresponding first frame 21 and second frame 22 mutually. The mounting hole is provided with a second through hole, the first frame 21 and the second frame 22 are provided with first threaded holes, and the threaded fastener penetrates through the second through hole and is in threaded connection with the corresponding first threaded holes.

With continued reference to fig. 3 and 5, the maintenance platform 2 further includes a plurality of guardrails 60 and a safety lock, the plurality of guardrails 60 are in one-to-one correspondence with the plurality of frames, and the corresponding frames are detachably connected with the guardrails 60 in a rotating manner. That is, each frame is detachably connected with the guard rail 60, and the guard rail 60 and the corresponding frame rotate relatively. When two adjacent guardrails 60 are adjacent to each other, the safety lock secures the two guardrails 60 to each other.

The guard rail 60 may include a plurality of two cross bars, and a plurality of vertical bars fixedly connected between the two cross bars and disposed at intervals, where the cross bars are connected to the first frame 21 and the second frame 22, and the vertical bars are disposed obliquely with respect to the cross bars.

In some possible examples, the two guardrails 60 are provided with a first sleeve and a second sleeve, respectively, on sides thereof adjacent to each other, the first sleeve and the second sleeve being arranged in a first direction; the safety lock is a limiting rod penetrating through the first sleeve and the second sleeve, and one end of the limiting rod is erected on a port, far away from one of the frames, of the first sleeve and the second sleeve.

The first direction is the extending direction of the first sleeve and the second sleeve. The limiting rod can be a bending rod, one end of the bending rod penetrates through the first sleeve and the second sleeve, and the other end of the bending rod is arranged on a port, far away from one of the frames, of the first sleeve and the second sleeve. Or the limit rod comprises a head and a rod part which are connected, the rod part is arranged on the first sleeve and the second sleeve in a penetrating way, and the size of the head is larger than that of the first sleeve and that of the second sleeve, so that the head is arranged on a port, far away from one of the frames, in the first sleeve and the second sleeve.

In order to further ensure the safety of the overhauling staff, the overhauling platform is also matched with a safety rope, namely, the overhauling platform 2 is matched with the safety rope for use so as to prevent the overhauling staff from falling off. The safety rope may be connected to the tower 1 or the guardrail 60.

The foldable frame 20 (i.e. a plurality of frames) and the pull rod 30 in the embodiment of the utility model can be made of aluminum alloy, so that the foldable frame is light in weight, firm and firm, and the overhaul platform 2 provides stable support for overhaul personnel. In addition, the guard rail 60 and the supporting structure 50 (including the supporting rods) may be made of aluminum alloy, so that the maintenance platform 2 is light in weight and well loaded.

When the overhaul platform 2 is installed, the foldable frame 20 is unfolded, and one end of the pull rod 30 is fixedly connected with the foldable frame 20; connecting the other end of the pull rod 30 with a cable tower, and connecting the two ends of the foldable frame 20 with the circuit tower 1; mounting the pedals 40 on the foldable frame 20 to form a support platform; the guard rail 60 is mounted on the foldable frame 20 and the guard rail 60 is pulled to be perpendicular to the foldable frame 20, and then the safety lock is mounted on the adjacent two guard rails 60 to prevent the guard rail 60 from tilting. The foldable frame 20, the pull rod 30, the guard rail 60 and the cable tower are easy to install and detach, safe and reliable, and two persons can complete the installation and the detachment.

In summary, in the embodiment of the utility model, the foldable frame 20 and the pull rod 30 are detachably and fixedly connected with the line tower 1, the pull rod 30 is inclined relative to the foldable frame 20, and the pull rod 30 forms an inclined support, so that stable connection is formed between the overhaul platform 2 and the line tower 1. The foldable frame 20 provides support for the pedals 40, and the pedals 40 are paved on the foldable frame 20 and are detachably and fixedly connected with the foldable frame 20 to form an overhaul platform for an overhaul worker to stand for overhaul, so that the overhaul safety of the circuit pole tower 1 is improved. The foldable frame 20, the pedal 40 and the pull rod 30 are all detachably connected, so that the foldable frame 20 can be conveniently installed and detached, and can be folded and placed, so that the foldable frame has a compact structure, reduces the occupied space and is convenient to carry along a vehicle.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (7)

1. The maintenance platform for the line pole tower is characterized by comprising a foldable frame, pedals and pull rods, wherein the two ends of the foldable frame are arranged at intervals and are detachably and fixedly connected with the line pole tower, the pedals are paved on the foldable frame and are detachably and fixedly connected with the foldable frame, the two ends of the pull rods are detachably and fixedly connected with the foldable frame and the line pole tower respectively, and the pull rods are obliquely arranged relative to the foldable frame;

the foldable frame comprises a plurality of frames and joint locking devices connected with adjacent frames, and the frames are fixed when the joint locking devices are in a locking state;

the plurality of frames comprise a first frame and second frames respectively arranged at two sides of the first frame, and the joint locking devices are arranged at one ends of the first frame and each second frame, which are opposite to each other;

the joint locking device includes:

a rotating shaft;

the two rotating bearings are sleeved on the rotating shaft and fixedly connected with the rotating shaft, and the two rotating bearings are respectively and fixedly connected to the first frame and the second frame;

the chuck is sleeved on the rotating shaft and fixedly connected with the rotating shaft, is positioned between the two rotating bearings, and is provided with a plurality of rotation stopping grooves arranged at intervals on the peripheral surface;

a base provided on the first frame or the second frame, the base having a receiving chamber and a first opening communicating with the receiving chamber, the first opening being opposite to an outer peripheral surface of the chuck;

the first end of the spring is fixedly connected with the bottom wall of the accommodating cavity;

the anti-rotation block is fixedly connected to the second end of the spring, extends outwards from the base and abuts against the chuck, and when the anti-rotation block is located in the anti-rotation groove, the joint locking device is in a locking state.

2. The access platform of claim 1, wherein the footrests are a plurality of, wherein at least two ends of the footrests are hollowed out areas, and wherein the hollowed out areas are opposite to the first frame;

the two ends of the buckle penetrate through the hollow area and are respectively positioned at the two sides of the first frame, and the two ends of the buckle are locked; or, the buckle is sleeved on the first frame, two ends of the buckle penetrate through the hollowed-out area, and two ends of the buckle are locked.

3. The service platform of claim 1, further comprising a support structure removably fixedly connected to the collapsible frame;

the support structure comprises two support rods which are crossed and fixedly connected, and mounting plates which are rotatably connected to the two ends of each support rod, wherein second through holes are formed in the mounting plates, and the surfaces of the mounting plates at the two ends of each support rod are respectively attached to the surfaces of the corresponding first frames and the surfaces of the second frames;

the first frame and the second frame are provided with first threaded holes, and the threaded fasteners penetrate through the second through holes and are in threaded connection with the corresponding first threaded holes.

4. A service platform according to claim 3, wherein the support bar is a telescopic bar.

5. The service platform of claim 1, further comprising: and the safety locks are used for fixing two adjacent guardrails to each other.

6. The maintenance platform according to claim 5, wherein a first sleeve and a second sleeve are respectively arranged on one side of the two guardrails close to each other, and the first sleeve and the second sleeve are arranged along a first direction;

the safety lock is a limiting rod penetrating through the first sleeve and the second sleeve, and one end of the limiting rod is erected on a port, far away from one of the frames, of the first sleeve and the second sleeve.

7. The access platform of any one of claims 1-6, wherein the collapsible frame and the tie rods are aluminum alloy.