CN112459596A - Power transmission and distribution tower erected on same tower and easy to overhaul - Google Patents
Power transmission and distribution tower erected on same tower and easy to overhaul Download PDFInfo
- Publication number
- CN112459596A CN112459596A CN202011223735.2A CN202011223735A CN112459596A CN 112459596 A CN112459596 A CN 112459596A CN 202011223735 A CN202011223735 A CN 202011223735A CN 112459596 A CN112459596 A CN 112459596A
- Authority
- CN
- China
- Prior art keywords
- cross arm
- tower
- power transmission
- distribution
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000006872 improvement Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
- E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
本发明所述的一种易检修的输配电同塔架设杆塔，包括杆塔和若干组可调节长度的横担组件，所述横担组件在所述杆塔上由上至下间隔设置，每组横担组件相对于所述杆塔呈水平对称设置，所述横担组件包括第一节横担和第二节横担，所述第一节横担的其中一端固定连接在所述杆塔的侧壁上，所述第二节横担滑动套设于所述第一节横担上，所述横担组件通过调节装置调节其的延伸长度；所述横担组件远离杆塔一端设有绝缘阻隔件。通过对横担组件的长度进行调节，并在远离杆塔的一端设置绝缘阻隔件，以满足上下通道内的通行安全为前提，减少对输电线检修时需要停电的繁琐操作。
The easy-to-maintain power transmission and distribution tower erected on the same tower according to the present invention includes a tower and several sets of cross arm assemblies with adjustable lengths. The cross arm assemblies are arranged on the tower at intervals from top to bottom. The cross-arm assembly is arranged horizontally and symmetrically with respect to the tower, and the cross-arm assembly includes a first cross-arm and a second cross-arm, and one end of the first cross-arm is fixedly connected to the side wall of the tower. The second section of the cross arm is slidably sleeved on the first section of the cross arm, and the extension length of the cross arm assembly is adjusted by an adjusting device; the end of the cross arm assembly away from the tower is provided with an insulating barrier. By adjusting the length of the cross arm assembly, and setting an insulating barrier at the end away from the tower, the premise of satisfying the safety of the passage in the upper and lower passages is to reduce the tedious operation of power failure during maintenance of the transmission line.
Description
Technical Field
The invention belongs to the technical field of towers of power transmission and distribution lines, and particularly relates to an easily-overhauled tower which is erected on the same power transmission and distribution tower.
Background
With the continuous advance of urbanization, the land of the power line corridor is increasingly tense. Under the influence of city planning, the transformation of the power grid is often limited in the original corridor, so that the same tower multi-circuit line erection is generated at the same time in order to improve the transmission capacity of the unit corridor width. The same-tower erection of the power transmission and distribution lines is used as a mode of multi-loop erection, and although the transmission capacity of a unit line corridor is effectively solved, other new problems are brought. When the power transmission line needs to be maintained in a power failure mode, the cross arm of the power distribution line is short, the safety distance between an operator and a tower is insufficient, metal objects are transferred up and down, the safety of the operator in the same up and down row in a channel cannot be guaranteed, and even if the cross arm takes an insulation isolation measure, the power failure of the distribution line erected on the same tower also needs to be matched. The distribution lines have complicated power failure operation and long time consumption, and are not beneficial to the maintenance work of the transmission lines. And the distribution lines are important lines for supplying power to customers, and the power failure of the distribution lines can cause the power failure of the customers and influence the production and life of the customers.
Disclosure of Invention
The invention provides a tower erected on the same tower for power transmission and distribution, which is easy to overhaul and aims to solve the problem that power failure is needed to ensure the passing safety in an upper channel and a lower channel when a power transmission line is overhauled.
The invention is realized by the following technical scheme.
An easily overhauled power transmission and distribution tower erected on the same tower comprises a tower and a plurality of groups of cross arm assemblies with adjustable lengths, wherein the cross arm assemblies are arranged on the tower at intervals from top to bottom, each group of cross arm assemblies are horizontally and symmetrically arranged relative to the tower, each cross arm assembly comprises a first cross arm and a second cross arm, one end of each first cross arm is fixedly connected to the side wall of the tower, the second cross arm is sleeved on the first cross arm in a sliding mode, and the extension lengths of the cross arm assemblies are adjusted through an adjusting device; and one end of the cross arm assembly, which is far away from the tower, is provided with an insulating barrier. The length of the cross arm assembly is adjusted, and the insulating barrier piece is arranged at one end far away from the tower, so that the requirement for the passing safety in the upper channel and the lower channel is met, and the complex operation of power failure during maintenance of the power transmission line is reduced.
The invention further improves that the second cross arm is in a shape of 20866a whole and is buckled on the first cross arm; spacing holes distributed along the adjusting direction of the cross arm assembly are respectively arranged on the first cross arm and the second cross arm at intervals, and spacing rods are inserted in the spacing holes corresponding to the upper part and the lower part. After the length of the cross arm assembly is adjusted, the limiting rod is inserted into the limiting hole to lock the relative positions of the first cross arm and the second cross arm.
The invention is further improved in that the bottom surface of the first cross arm is provided with two guide grooves extending along the length adjusting direction of the cross arm assembly, the lower edge of the side edge of the second cross arm is provided with a clamping part which extends inwards and horizontally and turns upwards, and the clamping part is clamped in the guide grooves. In the guide way of joint portion joint on first section cross arm on through the second section cross arm, increase the joint strength of second section cross arm on first section cross arm.
In a further improvement of the present invention, the adjusting device includes a first adjusting screw rod disposed on the first cross arm and a first adjusting nut disposed on the second cross arm, one end of the first adjusting screw rod is rotatably connected to the first cross arm, and the first adjusting nut is screwed on the first adjusting screw rod. Through operating first adjusting screw, first adjusting nut drives second section cross arm and carries out the regulation of whole length along first section cross arm.
The invention further improves that a second adjusting nut is fixedly sleeved at one end of the first adjusting screw rod, which is close to the tower. The second adjusting nut is convenient for the operator to adjust the first adjusting screw rod through the tool.
In a further improvement of the present invention, a groove extending along the length adjustment direction of the cross arm assembly is provided on the facing surface of the first cross arm with respect to the second cross arm, the first adjustment screw is rotatably disposed in the groove, and the first adjustment nut is fixedly connected to the second cross arm. Through setting up adjusting device in the recess, fully utilize the inside space of cross arm subassembly.
In a further improvement of the invention, an operating part is arranged at one end of the groove close to the tower, and the operating part is a slotted hole penetrating through the first cross arm. An operation space is reserved for the operator to adjust the first adjusting screw through the slotted hole.
The tower above the cross arm component is provided with a sling, one end of the sling is connected with the tower through a sling adjusting component, and the other end of the sling is hinged with one end of the second cross arm far away from the tower; the sling adjusting assembly comprises at least one supporting plate and a winding wheel, a third adjusting screw with a nut is connected to the axis of the winding wheel, and the third adjusting screw is in threaded connection with the supporting plate; the upper part of the sling adjusting component is provided with a guide ring sleeved outside the sling, and the guide ring is fixedly connected with the tower. And operating the third adjusting screw to enable the winding wheel to rotate so as to adjust the extension length of the sling, and completing the carrying of the free end of the cross arm assembly through the sling after the length of the cross arm assembly is adjusted.
The invention further improves that an operation platform connected with the connecting tower is arranged on at least one side surface of the first cross arm close to the tower. The operating platform provides space for operators to adjust the cross arm assembly and the sling.
The invention further improves that the bottom surface of the first cross arm, which is close to the tower, is provided with a reinforcing rib connected with the tower. The supporting strength of the tower to the cross arm assembly is improved through the reinforcing ribs.
According to the technical scheme, the invention has the beneficial effects that: the length of the cross arm assembly is adjusted, and the insulating barrier piece is arranged at one end far away from the tower, so that the requirement for the passing safety in the upper channel and the lower channel is met, and the complex operation of power failure during maintenance of the power transmission line is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, 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 that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic view of a combined structure of a tower and a cross arm assembly according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an adjustment structure of a cross arm assembly according to an embodiment of the invention.
FIG. 3 is a top view of a cross arm assembly according to an embodiment of the present invention.
FIG. 4 is a bottom view of a cross arm assembly in accordance with an embodiment of the present invention.
In the drawings: 1. pole tower, 2, cross arm component, 21, first cross arm, 211, groove, 212, first adjusting screw rod, 213, first adjusting nut, 214, operating part, 215, guide groove, 22, second cross arm, 221, second adjusting nut, 222, clamping part, 23, limiting hole, 24, limiting rod, 3, sling, 31, guide ring, 4, sling adjusting component, 41, winding wheel, 42, support plate, 5, operating platform, 6, reinforcing rib,
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
In the drawings: an easily overhauled power transmission and distribution tower erected on the same tower comprises a tower 1 and a plurality of groups of cross arm components 2 with adjustable lengths, wherein the cross arm components 2 are arranged on the tower 1 at intervals from top to bottom, each group of cross arm components 2 is horizontally and symmetrically arranged relative to the tower 1, each cross arm component 2 comprises a first cross arm 21 and a second cross arm 22, one end of the first cross arm 21 is fixedly connected to the side wall of the tower 1, the second cross arm 22 is sleeved on the first cross arm 21 in a sliding mode, and the extension length of the cross arm components 2 is adjusted through an adjusting device; and an insulating barrier is arranged at one end, far away from the tower 1, of the cross arm component 2. Through adjusting the length to cross arm subassembly 2 to the one end of keeping away from shaft tower 1 sets up insulating barrier spare, uses the current safety in satisfying the upper and lower passageway as the prerequisite, reduces the loaded down with trivial details operation that need have a power failure when overhauing the power transmission line. The cross arm assembly 2 capable of adjusting the length is used as a universal fitting of a power transmission line, so that the application range of the cross arm assembly in operation is increased.
The sling 3 is made of synthetic fiber made of insulating materials.
The second cross arm 22 is in a shape of 20866and is buckled on the first cross arm 21; the first cross arm 21 and the second cross arm 22 are respectively provided with a spacing hole 23 at intervals along the adjusting direction of the cross arm component 2, and spacing rods 24 are inserted into the spacing holes 23 corresponding to the upper and lower sides. After the length of the cross arm assembly 2 is adjusted, the relative positions of the first cross arm 21 and the second cross arm 22 are locked by inserting the limiting rod 24 into the limiting hole 23.
The bottom surface of the first cross arm 21 is provided with two guide grooves 215 extending along the length adjustment direction of the cross arm assembly 2, the lower edge of the side edge of the second cross arm 22 is provided with a clamping portion 222 extending horizontally inwards and turning upwards, and the clamping portion 222 is clamped in the guide grooves 215. The clamping part 222 on the second cross arm 22 is clamped in the guide groove 215 on the first cross arm 21, so that the connecting strength of the second cross arm 22 on the first cross arm 21 is increased.
The adjusting device comprises a first adjusting screw 212 arranged on the first cross arm 21 and a first adjusting nut 213 arranged on the second cross arm 22, wherein one end of the first adjusting screw 212 is rotatably connected with the first cross arm 21, and the first adjusting nut 213 is screwed on the first adjusting screw 212. By operating first adjusting screw 212, first adjusting nut 213 drives second cross arm 22 to adjust the overall length along first cross arm 21.
A second adjusting nut 221 is fixedly sleeved at one end of the first adjusting screw 212 close to the tower 1. The second adjustment nut 221 facilitates adjustment of the first adjustment screw 212 by the operator with a tool.
The opposite surface of the first cross arm 21 relative to the second cross arm 22 is provided with a groove 211 extending along the length adjustment direction of the cross arm assembly 2, the first adjusting screw 212 is rotatably arranged in the groove 211, and the first adjusting nut 213 is fixedly connected with the second cross arm 22. By arranging the adjustment means in the recess 211, the space inside the cross arm assembly 2 is fully utilized.
An operation part 214 is arranged at one end of the groove 211 close to the tower 1, and the operation part 214 is a slot hole penetrating through the first cross arm 21. An operation space is reserved for the operator to adjust the first adjusting screw 212 through the slotted hole.
A sling 3 connected with the cross arm component 2 is arranged on the tower 1 above the cross arm component 2, one end of the sling 3 is connected with the tower 1 through a sling adjusting component 4, and the other end of the sling 3 is hinged with one end of a second cross arm 22 far away from the tower 1; the sling adjusting component 4 comprises at least one supporting plate 42 and a winding wheel 41, a third adjusting screw 43 with a nut is connected on the axial line of the winding wheel 41, and the third adjusting screw 43 is screwed on the supporting plate 42; a guide ring 31 sleeved outside the sling 3 is arranged above the sling adjusting component 4, and the guide ring 31 is fixedly connected with the tower 1. And operating the third adjusting screw 43 to rotate the winding wheel 41 to adjust the extension length of the sling 3, so that the free end of the cross arm assembly 2 is received by the sling 3 after the cross arm assembly 2 is adjusted in length.
And an operating platform 5 connected with the connecting tower 1 is arranged on at least one side surface of the first cross arm 21 close to the tower 1. The operating platform 5 provides space for the operator to adjust the cross arm assembly 2 and the sling 3.
And the bottom surface of the first cross arm 21 close to the tower 1 is provided with a reinforcing rib 6 connected with the tower 1. The supporting strength of the tower 1 to the cross arm component 2 is improved through the reinforcing ribs 6.
According to the tower erected on the same power transmission and distribution tower easy to overhaul, the length of the cross arm assembly is adjusted, and the insulating barrier piece is arranged at the end far away from the tower, so that the complex operation of power failure during overhaul of the power transmission line is reduced on the premise of meeting the passing safety in an upper channel and a lower channel.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223735.2A CN112459596A (en) | 2020-11-05 | 2020-11-05 | Power transmission and distribution tower erected on same tower and easy to overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223735.2A CN112459596A (en) | 2020-11-05 | 2020-11-05 | Power transmission and distribution tower erected on same tower and easy to overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112459596A true CN112459596A (en) | 2021-03-09 |
Family
ID=74825703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011223735.2A Pending CN112459596A (en) | 2020-11-05 | 2020-11-05 | Power transmission and distribution tower erected on same tower and easy to overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112459596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451975A (en) * | 2021-05-24 | 2021-09-28 | 国网山东省电力公司淄博供电公司 | Multifunctional 10kV live-line work electric insulating cross arm and work method |
| CN114039291A (en) * | 2021-11-08 | 2022-02-11 | 贵州电网有限责任公司 | An H-shaped adjustment clip |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150085596A (en) * | 2014-01-16 | 2015-07-24 | 김상원 | Mounting apparatus for establishing road facility |
| CN206418847U (en) * | 2016-12-23 | 2017-08-18 | 国网福建省电力有限公司 | A kind of multifunction power bar |
| CN206712333U (en) * | 2017-04-27 | 2017-12-05 | 三峡大学 | A kind of line line lifter of Portable power transmission line six |
| CN207960127U (en) * | 2018-01-19 | 2018-10-12 | 山东齐星铁塔有限公司 | A kind of simple cross-arm of steel tube tower |
| CN209277669U (en) * | 2018-11-30 | 2019-08-20 | 国网河南省电力公司偃师市供电公司 | A kind of overhead transmission line line bar cross-arm |
| CN211239278U (en) * | 2019-12-27 | 2020-08-11 | 宜兴华源电工设备有限公司 | A special insulating cross arm for arrester |
-
2020
- 2020-11-05 CN CN202011223735.2A patent/CN112459596A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150085596A (en) * | 2014-01-16 | 2015-07-24 | 김상원 | Mounting apparatus for establishing road facility |
| CN206418847U (en) * | 2016-12-23 | 2017-08-18 | 国网福建省电力有限公司 | A kind of multifunction power bar |
| CN206712333U (en) * | 2017-04-27 | 2017-12-05 | 三峡大学 | A kind of line line lifter of Portable power transmission line six |
| CN207960127U (en) * | 2018-01-19 | 2018-10-12 | 山东齐星铁塔有限公司 | A kind of simple cross-arm of steel tube tower |
| CN209277669U (en) * | 2018-11-30 | 2019-08-20 | 国网河南省电力公司偃师市供电公司 | A kind of overhead transmission line line bar cross-arm |
| CN211239278U (en) * | 2019-12-27 | 2020-08-11 | 宜兴华源电工设备有限公司 | A special insulating cross arm for arrester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451975A (en) * | 2021-05-24 | 2021-09-28 | 国网山东省电力公司淄博供电公司 | Multifunctional 10kV live-line work electric insulating cross arm and work method |
| CN114039291A (en) * | 2021-11-08 | 2022-02-11 | 贵州电网有限责任公司 | An H-shaped adjustment clip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112459596A (en) | Power transmission and distribution tower erected on same tower and easy to overhaul | |
| CN211183330U (en) | Support is laid to transformer engineering cable, optical cable | |
| CN108636714B (en) | Auxiliary mechanism and insulator rubberizing device are paintd to structural adhesive | |
| CN210041141U (en) | Adjustable turning guide device for cable laying | |
| CN209298851U (en) | Actinobacillus device suitable for carrying out electric power maintenance cable duct | |
| CN201149972Y (en) | Equipotential working curved ladder | |
| CN109449830B (en) | Cable laying support | |
| CN216056189U (en) | Cable installation adjusting frame for electric power engineering construction | |
| CN113488936A (en) | Multifunctional combined wall load | |
| CN115424818A (en) | Direct current converter transformer mounting bracket and mounting method thereof | |
| CN114427279A (en) | Adjustable data center wallboard structure and construction method thereof | |
| KR101199518B1 (en) | Insulator type supporting bar of electric pole for fastening over head distribution line | |
| CN221590418U (en) | Steel purline structure for formwork support | |
| CN214144967U (en) | Steel-pipe pole with adjustable connected node | |
| CN112856186A (en) | Box installation device and distribution switch control iron tower | |
| CN221042161U (en) | Wheel type wire clamp for overhead line and insulating cross arm comprising same | |
| CN116537555B (en) | Net frame assembling method | |
| CN211456523U (en) | Electric wire supporting device for construction site | |
| CN219366535U (en) | Multipurpose stud | |
| CN220848661U (en) | Fixed support of attached lifting scaffold | |
| CN214280844U (en) | Bus duct connecting device and bus duct assembly | |
| CN210517466U (en) | Wall-hanging building forceful electric power block terminal convenient to installation | |
| CN220209858U (en) | Cable bridge capable of being vertically adjusted | |
| CN213880100U (en) | CPE with protective structure | |
| CN222073615U (en) | Electrical and automatic positioning and mounting equipment for same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |
|
| RJ01 | Rejection of invention patent application after publication |