CN113285389A

CN113285389A - A insulating combined bay for joining in marriage net terminal

Info

Publication number: CN113285389A
Application number: CN202110582444.0A
Authority: CN
Inventors: 滕桥华; 潘国柱; 张阳; 洪孝勇; 雷治成; 张金灿; 赵彬; 孟庆华; 王正美
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-20
Anticipated expiration: 2041-05-27
Also published as: CN113285389B

Abstract

The invention discloses an insulating combination frame for a distribution network terminal, which comprises a sleeve unit, a sleeve unit and a protective assembly, wherein the sleeve unit comprises an outer sleeve assembly, a middle sleeve assembly arranged in an outer sleeve, an inner sleeve assembly arranged in a middle sleeve, a protective connection assembly connected with the outer sleeve assembly, and an adjusting ring assembly arranged in the protective connection assembly; the assembly head comprises a threaded connection end fixedly connected with the top of the inner sleeve component and a plum blossom claw component connected with the threaded connection end. The adjustable sleeve assembly has the advantages that the length of the adjustable sleeve assembly can be quickly and accurately adjusted through the adjustable ring assembly arranged between the sleeves, workers can conveniently and quickly adjust the adjustable sleeve assembly to a proper distance to work, the danger of high-altitude operation is reduced, different parts can be used for disassembling the net cover and inserting the net wires through the assembling head arranged at the top end of the inner sleeve assembly, and the working efficiency is improved.

Description

A insulating combined bay for joining in marriage net terminal

Technical Field

The invention relates to the technical field of distribution network terminal testing, in particular to an insulating combined frame for a distribution network terminal.

Background

At the present stage, with the wide application of distribution network automation switches in distribution networks, the number is huge and remarkable. In Guizhou, rainwater and freezing weather are more, which causes time and labor waste when people climb the tower, poor safety and large operation risk. Operation and maintenance managers climb the tower to transfer terminal data information, and it is very difficult to modify the protection fixed value. In routine maintenance, the personnel need 2 people at least work, when climbing the shaft tower and accomplishing the overlap joint net twine, under the condition of normal weather, about need 0.3 hours, efficiency is very low to current combined bay is unable accurate length adjustment, needs staff's side or other actions to use the combined bay in order to dismantle the net flap and peg graft the net twine and test when high altitude construction, arouses danger easily.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art.

Therefore, an object of the present invention is to provide an insulating combined rack for distribution network terminals, which can improve work efficiency, and can accurately and rapidly adjust the length, thereby facilitating high-altitude operations.

In order to solve the technical problems, the invention provides the following technical scheme: an insulating combined frame for a distribution network terminal comprises a sleeve unit, a connecting unit and a connecting unit, wherein the sleeve unit comprises an outer sleeve assembly, a middle sleeve assembly arranged inside an outer sleeve, an inner sleeve assembly arranged inside a middle sleeve, a protection connecting assembly connected with the outer sleeve assembly and an adjusting ring assembly arranged inside the protection connecting assembly; the assembly head comprises a threaded connection end fixedly connected with the top of the inner sleeve component and a plum blossom claw component connected with the threaded connection end.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the plum-blossom-shaped claw assembly comprises a matching sleeve connected with the threaded connecting end, a plurality of groups of hook claws arranged above the matching sleeve in an array mode, and a plurality of groups of springs connected with the plurality of groups of hook claws.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the outer sleeve assembly comprises a sleeve cover connected with the top of the protection connecting assembly, a bottom cover connected with the bottom of the protection connecting assembly, and a shell connected with the top of the bottom cover.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the shell comprises a vertical groove arranged on the side surface of the shell, a plurality of groups of transverse grooves communicated with the vertical groove and arranged on one side of the shell in an array manner, and an annular through groove arranged between the shell and the sleeve cover and communicated with the vertical groove.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the protection connecting assembly comprises a top fixing ring, a plurality of groups of protection connecting plates connected with the bottom of the top fixing ring, and a bottom fixing ring connected with the bottom of the protection connecting plates; the top fixing ring comprises a protection groove arranged at the bottom of the top fixing ring.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the bottom cover comprises a first limiting disc arranged in the bottom cover, a circular through groove arranged above the first limiting disc, and a circular groove arranged at the bottom of the first limiting disc; the sleeve cover comprises two groups of arc-shaped fixing grooves which are symmetrically arranged at the bottom of the sleeve cover.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the adjusting ring assembly comprises a first rotating disc arranged at the bottom of the adjusting ring assembly, a supporting spring connected with the top of the first rotating disc, a moving disc connected with the top of the supporting spring, an adjusting ring arranged outside the outer sleeve, an adjusting block with two ends connected with the adjusting ring and the moving disc respectively, a second rotating disc connected with the top of the moving disc, and a lead screw connected with the top of the second rotating disc.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the middle sleeve component comprises two groups of vertical limiting grooves which are arranged on the inner wall of the middle sleeve component in a penetrating way, two groups of arc-shaped blocks which are symmetrically arranged on the bottom of the middle sleeve component, and a second limiting disc which is arranged on the bottom of the inner wall of the middle sleeve component; the second limiting disc comprises a screw rod through groove arranged at the top of the second limiting disc and a hollow annular groove arranged in the middle of the second limiting disc; two groups of vertical limiting grooves are symmetrically arranged.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the inner sleeve component comprises two groups of limiting blocks symmetrically arranged on the side faces of the inner sleeve component, the limiting blocks are matched with the vertical limiting grooves, and the bottom of the inner sleeve component is matched with the lead screw.

As a preferred scheme of the insulating combined rack for the distribution network terminal, the insulating combined rack comprises the following components: the first rotary disc is matched with the first limiting disc, and the second rotary disc is matched with the second limiting disc.

The invention has the beneficial effects that: according to the invention, the length of the adjustable ring assembly arranged between the sleeves can be quickly and accurately adjusted, so that workers can quickly adjust to a proper distance to work, the danger of high-altitude operation is reduced, and different parts can be used for disassembling the net cover and the plugging net wire through the assembling head arranged at the top end of the inner sleeve assembly, so that the working efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall structure view of an insulating combination rack for a distribution network terminal.

Fig. 2 is a partially disassembled view of an insulating modular frame for a distribution network terminal.

Fig. 3 is an overall exploded view of an insulating modular frame for a distribution network terminal.

Fig. 4 is a structure diagram of a first limiting plate and a second limiting plate of an insulating combined rack for a distribution network terminal.

Fig. 5 is a structural view of an outer sleeve assembly and a protective connecting assembly of an insulating modular frame for a distribution network terminal.

Fig. 6 is a block diagram of an adjustment ring assembly for an insulation block of a distribution network terminal.

Fig. 7 is a diagram of a middle sleeve assembly and an inner sleeve assembly of an insulating modular mount for a distribution network terminal.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 7, a first embodiment of the present invention provides an insulating combined rack for a distribution network terminal, which includes a sleeve unit 100 and an assembly head 200, wherein different clamping functions are realized by mounting the assembly head 200 on the sleeve unit 100.

Specifically, the sleeve unit 100 includes an outer sleeve assembly 101, a middle sleeve assembly 102 disposed inside the outer sleeve 101, an inner sleeve assembly 103 disposed inside the middle sleeve 102, a shielding connection assembly 104 connected to the outer sleeve assembly 101, and an adjusting ring assembly 105 disposed inside the shielding connection assembly 104. Shield connection assembly 104 is provided to connect outer sleeve assembly 101 and shield adjustment ring assembly 105. Three sets of sleeves are inserted in sequence, and different lengths are adjusted through the adjusting ring assembly 105 according to different distances when the device is used, so that the device is suitable for various scenes.

The assembly head 200 comprises a threaded connection end 201 fixedly connected with the top of the inner sleeve assembly 103, and a quincuncial claw assembly 202 connected with the threaded connection end 201. Plum blossom claw subassembly 202 passes through bottom and threaded connection end 201 threaded connection, realizes quick fixed.

In conclusion, the adjustable ring assembly arranged between the sleeves can be used for quickly and accurately adjusting the length of the adjustable ring assembly, so that workers can quickly adjust to a proper distance to work, the danger of high-altitude operation is reduced, different parts can be used for disassembling the net cover and inserting the net wires through the assembling head arranged at the top end of the inner sleeve assembly, and the working efficiency is improved.

Example 2

Referring to FIGS. 1 to 7, a second embodiment of the present invention is shown. In the above embodiment, the insulating modular frame for distribution network terminals includes the sleeve unit 100 and the assembling head 200, and different clamping functions are realized by mounting the assembling head 200 on the sleeve unit 100.

Specifically, the sleeve unit 100 includes an outer sleeve assembly 101, a middle sleeve assembly 102 disposed inside the outer sleeve 101, an inner sleeve assembly 103 disposed inside the middle sleeve 102, a shielding connection assembly 104 connected to the outer sleeve assembly 101, and an adjusting ring assembly 105 disposed inside the shielding connection assembly 104. Shield connection assembly 104 is provided to connect outer sleeve assembly 101 and shield adjustment ring assembly 105. Three sets of sleeves are sequentially spliced, and different lengths are adjusted according to different distances when the device is used, so that the device is suitable for various scenes.

Further, the plum blossom claw assembly 202 include with the cooperation cover 202a that the thread connection end 201 is connected, the array set up in the multiunit that cooperation cover 202a top colludes claw 202b, and with the multiunit collude the multiunit spring 202c that claw 202b is connected. The hook claw 202b is hinged to the engaging sleeve 202a and is maintained in an initial state by a spring 202 c.

Further, the outer sleeve assembly 101 includes a cap 101a connected to the top of the shield connection assembly 104, a bottom cap 101b connected to the bottom of the shield connection assembly 104, and a housing 101c connected to the top of the bottom cap 101 b.

Further, the housing 101c includes a vertical slot 101c-1 disposed on a side surface thereof, a plurality of sets of transverse slots 101c-2 communicated with the vertical slot 101c-1 and disposed on one side thereof in an array, and an annular through slot 101c-3 disposed between the housing 101c and the cap 101a and communicated with the vertical slot 101 c-1. The widths of the vertical groove 101c-1, the transverse groove 101c-2 and the annular through groove 101c-3 are matched with the adjusting block 105 e.

Further, the protection connecting assembly 104 comprises a top fixing ring 104a, a plurality of sets of protection connecting plates 104b connected to the bottom of the top fixing ring 104a, and a bottom fixing ring 104a connected to the bottom of the protection connecting plates 104 b; the top fixing ring 104a includes a protection groove 104a-1 provided at the bottom thereof. The sleeve cover 101a and the bottom cover 101b can be fixedly connected by the protective connecting assembly 104, the diameter of the sleeve cover is slightly larger than the adjusting ring 105d, after the distance is adjusted by the adjusting ring 105d, due to the protection of the protective connecting plate 104b, the fixed position of the adjusting ring 105d cannot be affected by mistaken collision and collision, the adjusted proper length is kept, the adjusting ring 105d cannot contact the outside due to the existence of the protective connecting plate 104b during storage, so that the fault that the sleeve pops out suddenly is avoided, the annular through groove 101c-3 can be reserved by the protective connecting assembly 104, and the precise adjustment of the combined shelf is guaranteed. When high altitude construction, bind in protection connecting plate 104b bottom through the rope, make staff portable insulating combined bay, vacate the hand and solve other problems, prevent that the hand loss from falling, cause personnel's injury, improve work efficiency.

Further, the bottom cover 101b comprises a first limiting disc 101b-1 arranged inside the bottom cover, a circular through groove 101b-2 arranged above the first limiting disc 101b-1, and a circular groove 101b-3 arranged at the bottom of the first limiting disc 101 b-1; the sleeve cover 101a comprises two groups of arc-shaped fixing grooves 101a-1 which are symmetrically arranged at the bottom of the sleeve cover. The arcuate securing groove 101a-1 mates with the arcuate block 102 b.

Further, the adjusting ring assembly 105 includes a first rotating disc 105a disposed at the bottom thereof, a supporting spring 105b connected to the top of the first rotating disc 105a, a moving disc 105c connected to the top of the supporting spring 105b, an adjusting ring 105d disposed outside the outer sleeve 101, an adjusting block 105e having two ends respectively connected to the adjusting ring 105d and the moving disc 105c, a second rotating disc 105f connected to the top of the moving disc 105c, and a lead screw 105g connected to the top of the second rotating disc 105 f.

Further, the middle sleeve assembly 102 includes two sets of vertical limiting grooves 102a penetrating the inner wall thereof, two sets of arc-shaped blocks 102b symmetrically disposed at the bottom thereof, and a second limiting disc 102c disposed at the bottom of the inner wall thereof; the second limiting disc 102c comprises a screw rod through groove 102c-1 arranged at the top of the second limiting disc and a hollow annular groove 102c-2 arranged at the middle of the second limiting disc; the two groups of vertical limiting grooves 102a are symmetrically arranged.

Further, the inner sleeve assembly 103 includes two sets of limiting blocks 103a symmetrically disposed on the lateral surfaces thereof, the limiting blocks 103a are engaged with the vertical limiting grooves 102a, and the bottom of the inner sleeve assembly 103 is engaged with the lead screw 105 g. The first rotating disc 105a is matched with the first limiting disc 101b-1, and the second rotating disc 105f is matched with the second limiting disc 102 c. It should be noted that the bottom cover 101b and the housing 101c may be fixedly connected by welding, etc., the first limiting disc 101b-1 is disposed at the bottom inside the bottom cover 101b, the first rotating disc 105a is disposed between the bottom cover 101b and the first limiting disc 101b-1, the supporting spring 105b extends out of the circular through groove 101b-2, and the diameter of the circular through groove 101b-2 is smaller than that of the first rotating disc 105a, so that the first limiting disc 101b-1 may be limited to move up and down by disposing the first rotating disc 105a, but the first limiting disc 101b-1 may rotate freely, and the outer sleeve assembly 101 and the adjusting ring assembly 105 may be connected by the first limiting disc 101 b-1. The second limiting disc 102c is fixedly connected with the bottom of the middle sleeve component 102, the second limiting disc 102c has a function similar to that of the first limiting disc 101b-1, the second limiting disc 102c and the second rotating disc 105f are arranged in a hollow annular groove 102c-2 of the second limiting disc 102c, and friction force exists between the second limiting disc 102c and the second rotating disc 105 f; the screw rod 105g extends out of the screw rod through groove 102c-1 and is matched and connected with the inner sleeve component 103.

When in use, the insulating combined rack is divided into three using modes. The first use mode is as follows: in the initial state, the adjusting ring assembly 105 is arranged at the bottom of the shell 101c, and the adjusting block 105e is arranged in the lowest transverse groove 101c-2 of the plurality of groups of transverse grooves 101 c-2; at this time, only the adjusting ring 105d needs to be rotated to enable the adjusting block 105e to enter the vertical groove 101c-1, the extruded supporting spring 105b pushes the moving disc 105c to move upwards, even if the middle sleeve assembly 102 extends out from the inner part of the outer sleeve assembly 101, the adjusting ring 105d can be rotated at any time in the extending process to enable the adjusting block 105e to enter one of the plurality of groups of transverse grooves 101c-2, the supporting spring 105b stops rising, the rough adjustment of the length is realized, because the adjusting block 105e is clamped in the transverse groove 101c-2, after the adjusting ring 105d is not moved by external force, the position of the middle sleeve assembly 102 can be fixed, the movement of the middle sleeve assembly is prevented, and the stability of the combined frame is ensured.

The second use mode is as follows: similarly, the adjusting ring 105d in the initial state is rotated to enable the adjusting block 105e to rapidly ascend along the length direction of the vertical groove 101c-1 until the adjusting ring 105d is jacked into the protective groove 104a-1 at the bottom of the top fixing ring 104a, due to the existence of the protective groove 104a-1, the adjusting block 105e and the annular through groove 101c-3 are in the same horizontal plane, and the adjusting block 105e can rotate in the annular through groove 101c-3 by rotating the adjusting ring 105 d; due to the preset position, when the adjusting block 105e rises to the annular through groove 101c-3 along the vertical groove 101c-1, the middle sleeve assembly 102 connected with the protection connecting assembly 104 extends outwards from the inside of the outer sleeve assembly 101 by the maximum distance, and the arc blocks 102b on both sides of the middle sleeve assembly 102 are clamped with the arc fixing groove 101a-1 at the bottom of the sleeve cover 101a, so that the middle sleeve assembly 102 is fixed, when the adjusting ring assembly 105 rotates, the inner sleeve assembly 103 matched with the lead screw 105g slowly extends out of the middle sleeve assembly 102, the maximum length and the accurate adjustment can be adjusted, and the stability after the adjustment is ensured.

The third use mode is as follows: the first and second modes are combined, the second mode is firstly used for accurately adjusting the extending distance of the inner sleeve component 103, then the protection connecting component 104 is pressed, the protection connecting component 104 is fixed through the first mode, the lengths of the middle sleeve component 102 and the inner sleeve component 103 can be simultaneously adjusted through the protection connecting component 104, and the fast adjusting speed and the accurate adjusting distance are achieved.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides an insulating combined bay for joining in marriage net terminal which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the sleeve unit (100) comprises an outer sleeve assembly (101), a middle sleeve assembly (102) arranged inside the outer sleeve (101), an inner sleeve assembly (103) arranged inside the middle sleeve (102), a protection connecting assembly (104) connected with the outer sleeve assembly (101), and an adjusting ring assembly (105) arranged inside the protection connecting assembly (104);

the assembly head (200) comprises a threaded connection end (201) fixedly connected with the top of the inner sleeve component (103), and a plum blossom claw component (202) connected with the threaded connection end (201).

2. The insulating rack assembly for distribution network terminals of claim 1, wherein: plum blossom claw subassembly (202) including with cooperation cover (202a), the array that threaded connection end (201) are connected set up in cooperate the multiunit of cover (202a) top to collude claw (202b), and with the multiunit collude multiunit spring (202c) that claw (202b) are connected.

3. The insulating rack assembly for distribution network terminals of claim 2, wherein: the outer sleeve assembly (101) comprises a sleeve cover (101a) connected with the top of the protection connecting assembly (104), a bottom cover (101b) connected with the bottom of the protection connecting assembly (104), and a shell (101c) connected with the top of the bottom cover (101 b).

4. The insulating rack assembly for distribution network terminals of claim 3, wherein: the shell (101c) comprises a vertical groove (101c-1) arranged on the side surface of the shell, a plurality of groups of transverse grooves (101c-2) communicated with the vertical groove (101c-1) and arranged on one side of the shell in an array mode, and an annular through groove (101c-3) arranged between the shell (101c) and the sleeve cover (101a) and communicated with the vertical groove (101 c-1).

5. The insulation combined rack for the distribution network terminal as recited in any one of claims 1 to 4, wherein: the protection connecting assembly (104) comprises a top fixing ring (104a), a plurality of groups of protection connecting plates (104b) connected with the bottom of the top fixing ring (104a), and a bottom fixing ring (104a) connected with the bottom of the protection connecting plates (104 b); the top fixing ring (104a) includes a protection groove (104a-1) provided at a bottom thereof.

6. The insulating rack assembly for distribution network terminals of claim 4, wherein: the bottom cover (101b) comprises a first limiting disc (101b-1) arranged in the bottom cover, a circular through groove (101b-2) arranged above the first limiting disc (101b-1), and a circular groove (101b-3) arranged at the bottom of the first limiting disc (101 b-1); the sleeve cover (101a) comprises two groups of arc-shaped fixing grooves (101a-1) symmetrically arranged at the bottom of the sleeve cover.

7. The insulating rack assembly for distribution network terminals of claim 6, wherein: the adjusting ring assembly (105) comprises a first rotating disc (105a) arranged at the bottom of the adjusting ring assembly, a supporting spring (105b) connected with the top of the first rotating disc (105a), a moving disc (105c) connected with the top of the supporting spring (105b), an adjusting ring (105d) arranged outside the outer sleeve (101), an adjusting block (105e) with two ends respectively connected with the adjusting ring (105d) and the moving disc (105c), a second rotating disc (105f) connected with the top of the moving disc (105c), and a lead screw (105g) connected with the top of the second rotating disc (105 f).

8. The insulating rack assembly for distribution network terminals of claim 7, wherein: the middle sleeve component (102) comprises two groups of vertical limiting grooves (102a) which are arranged on the inner wall of the middle sleeve component in a penetrating way, two groups of arc-shaped blocks (102b) which are symmetrically arranged at the bottom of the middle sleeve component, and a second limiting disc (102c) which is arranged at the bottom of the inner wall of the middle sleeve component; the second limiting disc (102c) comprises a screw rod through groove (102c-1) arranged at the top of the second limiting disc and a hollow annular groove (102c-2) arranged at the middle of the second limiting disc; the two groups of vertical limiting grooves (102a) are symmetrically arranged.

9. The insulating rack assembly for distribution network terminals of claim 8, wherein: the inner sleeve assembly (103) comprises two groups of limiting blocks (103a) symmetrically arranged on the side surfaces of the inner sleeve assembly, the limiting blocks (103a) are matched with the vertical limiting grooves (102a), and the bottom of the inner sleeve assembly (103) is matched with the lead screw (105 g).

10. The insulating rack assembly for distribution network terminals as claimed in claim 8 or 9, wherein: the first rotary disc (105a) is matched with the first limiting disc (101b-1), and the second rotary disc (105f) is matched with the second limiting disc (102 c).