CN111779028A - Finished prefabricated electric shallow trench and construction method thereof - Google Patents
Finished prefabricated electric shallow trench and construction method thereof Download PDFInfo
- Publication number
- CN111779028A CN111779028A CN202010635168.5A CN202010635168A CN111779028A CN 111779028 A CN111779028 A CN 111779028A CN 202010635168 A CN202010635168 A CN 202010635168A CN 111779028 A CN111779028 A CN 111779028A
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- China
- Prior art keywords
- groove
- apron
- ditch
- installation pole
- shallow trench
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- 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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
Abstract
The utility model relates to a finished product prefabricated electric power shallow ditch and construction method thereof, belong to electric power engineering facility field, including the ditch body of a plurality of looks concatenations, all be provided with the apron on every ditch body, two adjacent ditch bodies just are located the position of mutually concatenating and are provided with the installation pole, the installation pole spans in the setting of ditch body, and the length direction of installation pole length direction perpendicular to the length direction of ditch body, the apron is along the length direction sliding connection of installation pole on the installation pole of ditch body both sides, still including the holding tank that is located ditch body one side, when the internal portion of ditch exposes, the apron is located the holding tank. This application has the effect of being convenient for maintain and change cable.
Description
Technical Field
The application relates to the field of electric power engineering facilities, in particular to a finished product prefabricated electric power shallow trench and a construction method thereof.
Background
The electric shallow trench, namely the cable trench, is an underground pipeline for laying and replacing electric power or telecommunication cable facilities, is also an enclosure structure of the laid cable facilities, and has the structural forms of rectangular, circular, arched and other pipeline structures, the cable trench generally adopts a concrete or brick structure, and the top of the cable trench is covered by a cover plate. The cover plate surface can be flush with the ground, so that the cover plate is convenient to open, and the cover plate is slightly lower than the ground to be painted with a layer of cement so as to prevent the cover plate from being uneven with the ground and prevent rainwater from entering the cable trench.
The traditional Chinese patent with the application publication number of CN109274057A discloses a prefabricated cable trench structure and a construction method thereof, and the prefabricated cable trench structure comprises brick bodies, trench bodies arranged among the brick bodies, and supports fixed on the side walls of the trench bodies, wherein the side walls of the trench bodies are provided with a plurality of cable trench grounding flat steels and support grounding flat steels, a plurality of cable trench grounding flat steels are uniformly distributed along the length direction of the trench bodies, a plurality of support grounding flat steels are also uniformly distributed along the length direction of the trench bodies, and the cable trench grounding flat steels are positioned above the support grounding flat steels; step surfaces extending outwards are arranged on two sides of the top end of the groove body; the prefabricated concrete coping is matched with the groove body, two opposite sides of the prefabricated concrete coping are respectively placed on the two step surfaces, and the prefabricated concrete coping and the brick body are fixedly connected through cement mortar.
In view of the above-mentioned related art, the inventor thinks that the groove body can be closed by using the precast concrete coping after the cable is laid in the groove body, but when the cable has a problem in the later period and needs to be repaired or replaced, the precast concrete coping needs to be uncovered by a worker, which causes inconvenience in repairing and replacing the cable.
Disclosure of Invention
In order to facilitate maintenance and replacement of cables, in a first aspect, the application provides a finished product prefabricated electric shallow trench, which adopts the following technical scheme:
the utility model provides a prefabricated electric power shallow ditch of finished product, includes a plurality of ditch bodies of splicing mutually, every all be provided with the apron on the ditch body, adjacent two the ditch body just is located the position of splicing mutually and is provided with the installation pole, the installation pole spans in the setting of the ditch body, just the length direction of the length direction perpendicular to ditch body of installation pole, the apron is along the length direction sliding connection of installation pole on the installation pole of ditch body both sides, still including being located the holding tank of ditch body one side, when the internal portion of ditch exposes, the apron is located the holding tank.
Through adopting above-mentioned technical scheme, when installing this electric power shallow ditch, accomplish the back with the concatenation of a plurality of ditch bodies, fixed mounting pole is to the ditch body on, make the installation pole be located the concatenation department of two adjacent ditch bodies, construction holding tank and installation apron are to every ditch body afterwards, and make every apron sliding connection on the installation pole of every ditch body both sides, so when electric power shallow ditch later stage uses, if the cable in the electric power shallow ditch takes place to damage, maintenance person alright with the apron of corresponding position that slides, make the apron get into in the holding tank, and make the ditch body of here expose, staff alright maintain or change the cable in getting into the ditch body afterwards, after maintenance or change are accomplished, again with the apron from holding the groove roll-off, and seal the ditch body, through making apron sliding connection on the ditch body, thereby make the maintenance and the change of cable more convenient.
Preferably, the mounting rod is provided with two sliding rails, the two sliding rails are parallel to each other, the sliding rails are arranged along the length direction of the mounting rod, sliding grooves are formed in the two sides of the cover plate on the cover plate, the sliding grooves are matched with the sliding rails, and the sliding rails are located in the sliding grooves.
Through adopting above-mentioned technical scheme, during the installation apron, in the slide rail that makes on the slide rail installation pole correspond got into the spout on the apron, so just so make the apron can slide on the slide rail, the setting up of slide rail and spout can lead to the removal of apron for the apron can slide in or the roll-off holding tank better, and the slide rail has also realized the apron with the spout and has been connected of installation pole simultaneously.
Preferably, one side that the installation pole was kept away from to the slide rail that just is located on the slide rail is provided with anticreep portion, anticreep portion sets up along the length direction of slide rail, the anticreep groove has been seted up on the inside wall of spout, anticreep portion cooperatees with the anticreep groove.
Through adopting above-mentioned technical scheme, anticreep portion and anticreep groove can make installation pole and apron be connected inseparabler to prevent that installation pole and apron from breaking away from easily.
Preferably, a sealing groove is formed in one side of the cover plate, a sealing strip is arranged on the other side of the cover plate, and the sealing strip is connected in the sealing groove of the adjacent cover plate in a sliding mode.
Through adopting above-mentioned technical scheme, when the installation apron, make the sealing strip on the apron get into in the seal groove on the adjacent apron to improve the leakproofness of two apron butt departments, improve the waterproof ability of apron.
Preferably, the surface of the cover plate far away from the groove body is provided with an arc-shaped surface, and the arc-shaped surface of the cover plate protrudes towards the direction far away from the groove body.
Through adopting above-mentioned technical scheme, the face of keeping away from the ditch body with the apron sets up to the arcwall face, can make the water that falls on the apron arrange ditch body both sides to prevent that the rainwater from gathering on the apron.
Preferably, an insertion part is arranged on one side of the groove body and positioned on the groove body, a socket part is arranged on the other side of the groove body, the insertion part and the socket part are both arranged to protrude out of the groove body, and when the two groove bodies are spliced, the insertion part is inserted into the socket part.
Through adopting above-mentioned technical scheme, when two ditch bodies of concatenation, make the portion of inserting of a ditch body peg graft to in the socket joint portion of another ditch body to make the concatenation seam of two ditch bodies can stagger, thereby improve the water-proof effects of two ditch body concatenation departments, reduce the moisture that gets into in the ditch body.
Preferably, two adjacent groove bodies are provided with polyurethane sealant at the position of being spliced.
Through adopting above-mentioned technical scheme, the waterproof effect of two ditch body concatenation departments can further be improved in setting up of polyurethane sealant.
In a second aspect, the present application provides a construction method for a prefabricated electric shallow trench, which adopts the following technical scheme:
a construction method of a finished product prefabricated electric power shallow trench comprises the following steps:
s1: measuring and positioning, and paying off the construction position of the electric shallow trench;
s2: excavating a groove, excavating according to the paying-off position and the design requirement, and tamping a soil body at the bottom of the groove after the groove is excavated to the design elevation;
s3: constructing a cushion layer, wherein the cushion layer is a sand cushion layer, the sand cushion layer is paved to the bottom of the trench, and the height and the thickness of the cushion layer are controlled according to the design height;
s4: hoisting the ditch body, hoisting the ditch body into the groove by using hoisting equipment, and sequentially splicing the ditch body;
s5: constructing a holding tank, namely excavating a soil body on one side of the trench body, pouring fine aggregate concrete after a template is installed, and forming the holding tank after the concrete is formed;
s6: and fixing the mounting rod to the groove body, sequentially mounting the cover plate on the mounting rod, and enabling the cover plate to be in sliding connection with the mounting rod to finish the installation of the groove body.
Through adopting above-mentioned technical scheme, make apron sliding connection on the ditch body, when later stage cable need be maintained or changed, maintenance person only need slide cover board make the ditch body expose, reentrant ditch body to cable inlet wire maintenance or change can, improved the maintenance of cable and the convenience of changing.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the installation rods are arranged at the splicing positions of the two adjacent groove bodies, the cover plate on each groove body is connected to the installation rods at the two sides of the groove body in a sliding mode, the accommodating groove is formed in one side of each groove body, when the cable in the groove body needs to be maintained or replaced, the cover plate only needs to be slid to enter the accommodating groove, the groove body is exposed at the moment, the cover plate does not need to be uncovered, and therefore the cable is more convenient to maintain and replace;
2. the mounting rod is provided with the slide rail, the cover plate is provided with the slide groove matched with the slide rail, and when the cover plate is mounted, the slide rail enters the corresponding slide groove on the cover plate, so that the cover plate slides and is connected with the mounting rod;
3. through set up socket joint portion in one side of the ditch body, the opposite side sets up the portion of inserting for two ditch body concatenation backs, the position of two ditch body concatenation seams can stagger, thereby has improved the water-proof effects of two ditch body concatenation departments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of a partial explosion structure behind an explosion trench body and a cover plate according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a partial explosion structure behind the explosion trench body and the cover plate according to the embodiment of the present application;
fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Description of reference numerals: 1. a trench body; 11. an insertion portion; 12. a socket part; 2. a cover plate; 21. a chute; 22. a drop-proof groove; 23. a sealing groove; 24. a sealing strip; 3. mounting a rod; 31. a slide rail; 32. an anti-drop part; 4. and (6) accommodating the tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a finished product prefabricated electric shallow trench. Referring to fig. 1 and 2, the prefabricated electric shallow trench comprises a plurality of trench bodies 1 spliced with each other, each trench body 1 is a U-shaped trench body, each trench body 1 is prefabricated by concrete, each trench body 1 is installed in a trench excavated in advance, a cover plate 2 is arranged on each trench body 1, each cover plate 2 can be made of a precast concrete plate or a steel plate, the cover plate 2 is matched with the trench body 1 in size, two adjacent trench bodies 1 are provided with mounting rods 3 (see fig. 4) at the spliced positions, each mounting rod 3 spans across the trench body 1, the length direction of each mounting rod 3 is perpendicular to the length direction of the trench body 1, two ends of each mounting rod 3 are fixedly connected with the trench body 1, each cover plate 2 is slidably connected to the mounting rods 3 at two sides of the trench body 1 along the length direction of each mounting rod 3, one side of each trench body 1 is provided with a cast-in-place holding groove 4, each holding groove 4 is a concrete groove or a steel groove, when the trench body 1 is exposed, the cover plate 2 is positioned in the accommodating groove 4.
When the shallow trench later stage of electric power uses, if the cable in the shallow trench of electric power takes place to damage, maintenance personal alright with the apron 2 of slip relevant position, make apron 2 get into in holding tank 4, and make the ditch body 1 of here expose, subsequently the staff alright with keeping in or changing the cable in getting into the ditch body 1, after maintenance or change completion, 2 roll-offs of holding tank 4 are followed to apron again, and seal the ditch body 1, through making 2 sliding connection of apron on the ditch body 1, thereby make the maintenance and the change of cable more convenient
Referring to fig. 3 and 4, each mounting rod 3 is provided with two parallel slide rails 31, the slide rails 31 are arranged along the length direction of the mounting rod 3, slide grooves 21 matched with the slide rails 31 are formed in the two sides of the cover plate 2 on the cover plate 2, and after the cover plate 2 is mounted on the groove body 1, the slide rails 31 are positioned in the slide grooves 21; the sliding grooves 21 and the sliding rails 31 can realize the sliding of the cover plate 2, and simultaneously play a role in guiding the sliding of the cover plate 2, so that the cover plate 2 can better slide into or out of the accommodating groove 4; in order to prevent the cover plate 2 from being separated from the slide rail 31, a retaining portion 32 is integrally provided on the slide rail 31 on a side of the slide rail 31 away from the mounting rod 3, the retaining portion 32 is provided along a length direction of the slide rail 31, and a retaining groove 22 engaged with the retaining portion 32 is formed on an inner side wall of the slide groove 21.
Referring to fig. 2 and 3, in order to improve the water-proof effect between the apron 2, seal groove 23 has been seted up in one side of apron 2, and the opposite side of apron 2 is provided with sealing strip 24, when installing apron 2, make sealing strip 24 on the apron 2 get into in another apron 2's the seal groove 23, when sliding apron 2, sealing strip 24 then can slide in adjacent apron 2's seal groove 23, sealing strip 24 and seal groove 23 can increase the leakproofness between the adjacent apron 2, thereby improve apron 2's waterproof ability, simultaneously in order to prevent that the rainwater from gathering on apron 2, the face of keeping away from the ditch body 1 with apron 2 sets up to the arcwall face, and the arcwall face orientation of apron 2 is protruding towards the direction of keeping away from the ditch body 1.
Referring to fig. 2, in order to improve the waterproof effect of the spliced part of the groove body 1, an insertion part 11 is arranged on one side of the groove body 1 and positioned in the groove body 1, a socket part 12 is arranged on the other side of the groove body 1, the insertion part 11 and the socket part 12 are both protruded out of the groove body 1, when the two groove bodies 1 are spliced, the insertion part 11 is inserted into the socket part 12, so that the splicing seams of the two groove bodies 1 are staggered, thereby preventing moisture from entering to a certain extent, and in order to further improve the waterproof effect, polyurethane sealant (not shown in the figure) is arranged at the spliced position of the two adjacent groove bodies 1.
The implementation principle of the prefabricated electric shallow trench of a finished product in the embodiment of the application is as follows: after excavating the slot, hoist the ditch body 1 to the ditch inslot, and splice the ditch body 1, fixed mounting pole 3 is on the position of the 1 concatenation of ditch body afterwards, then construct holding tank 4 to one side of the ditch body 1 again, and install apron 2 to every ditch body 1 on, make slide rail 31 on the installation pole 3 get into in the spout 21 on the apron 2, so when electric power shallow trench later stage uses, if the cable in the electric power shallow trench takes place to damage, maintenance person alright slide corresponding position's apron 2, make apron 2 get into in the holding tank 4, make the ditch body 1 of here expose, then staff alright maintain or change the cable in getting into the ditch body 1, after maintenance or change completion, again with apron 2 from holding tank 4 roll-off, and seal the ditch body 1, through making apron 2 sliding connection on the ditch body 1, thereby make the maintenance and the change of cable more convenient.
The embodiment of the application also discloses a construction method of the finished product prefabricated electric power shallow trench, which comprises the following steps:
s1: measuring and positioning, and paying off the construction position of the electric shallow trench;
s2: excavating a groove, excavating according to the paying-off position and the design requirement, and tamping a soil body at the bottom of the groove after the groove is excavated to the design elevation;
s3: constructing a cushion layer, wherein the cushion layer is a sand cushion layer, the sand cushion layer is paved to the bottom of the trench, and the height and the thickness of the cushion layer are controlled according to the design height;
s4: hoisting the groove body 1, hoisting the groove body 1 into the groove by using hoisting equipment, sequentially splicing the groove bodies 1, inserting the insertion part 11 on the groove body 1 into the socket part 12 of the adjacent groove body 1, and smearing polyurethane sealant at the splicing part of the groove body 1 after the groove body 1 is installed;
s5: constructing an accommodating groove 4, wherein in the embodiment, a cast-in-place concrete groove is selected as the accommodating groove 4, soil on one side of the trench body 1 is excavated before construction, then a template is installed, fine stone concrete is poured, and the accommodating groove 4 is formed after the concrete is molded;
s6: on the fixed mounting pole 3 to the ditch body 1, install the apron 2 on the installation pole 3 in proper order from the one side that the holding tank 4 was kept away from to the ditch body 1 afterwards, make slide rail 31 get into in the spout 21 for apron 2 and installation pole 3 sliding connection, and make the sealing strip 24 of apron 2 get into in the seal groove 23 of adjacent apron 2, accomplish the installation of ditch body 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A finished product prefabricated electric shallow trench is characterized in that: including the ditch body (1) of a plurality of looks concatenations, every all be provided with apron (2), adjacent two on the ditch body (1) just is located the position of mutually concatenating and is provided with installation pole (3), installation pole (3) span in the setting of the ditch body (1), just the length direction of the length direction perpendicular to ditch body (1) of installation pole (3), apron (2) are along the length direction sliding connection of installation pole (3) on installation pole (3) of the ditch body (1) both sides, still including holding tank (4) that are located ditch body (1) one side, when the ditch body (1) is inside to be exposed, apron (2) are located holding tank (4).
2. A finished prefabricated electric shallow trench as claimed in claim 1, wherein: be provided with two slide rails (31) on installation pole (3), two slide rail (31) are parallel to each other, just slide rail (31) set up along the length direction of installation pole (3), spout (21) have been seted up to the both sides that lie in apron (2) on apron (2), spout (21) cooperate with slide rail (31), slide rail (31) are located in spout (21).
3. A finished prefabricated electric shallow trench as claimed in claim 2, wherein: one side that just lies in slide rail (31) and keep away from installation pole (3) on slide rail (31) is provided with anticreep portion (32), anticreep portion (32) set up along the length direction of slide rail (31), anticreep groove (22) have been seted up on the inside wall of spout (21), anticreep portion (32) cooperate with anticreep groove (22).
4. A finished prefabricated electric shallow trench as claimed in claim 1, wherein: seal groove (23) have been seted up to one side of apron (2), the opposite side of apron (2) is provided with sealing strip (24), sealing strip (24) sliding connection is in seal groove (23) of adjacent apron (2).
5. A finished prefabricated electric shallow trench as claimed in claim 1, wherein: the surface of the cover plate (2) far away from the groove body (1) is arranged to be an arc-shaped surface, and the arc-shaped surface of the cover plate (2) protrudes towards the direction far away from the groove body (1).
6. A finished prefabricated electric shallow trench as claimed in claim 1, wherein: one side of the groove body (1) and located on the groove body (1) is provided with an insertion part (11), the other side is provided with a socket part (12), the insertion part (11) and the socket part (12) are both protruded out of the groove body (1), and when the groove bodies (1) are spliced, the insertion part (11) is inserted into the socket part (12).
7. A finished prefabricated electric shallow trench as claimed in claim 1, wherein: and polyurethane sealant is arranged at the splicing positions of the two adjacent groove bodies (1).
8. A method of constructing a finished prefabricated electrical shallow trench comprising the finished prefabricated electrical shallow trench of claim 1, comprising the steps of:
s1: measuring and positioning, and paying off the construction position of the electric shallow trench;
s2: excavating a groove, excavating according to the paying-off position and the design requirement, and tamping a soil body at the bottom of the groove after the groove is excavated to the design elevation;
s3: constructing a cushion layer, wherein the cushion layer is a sand cushion layer, the sand cushion layer is paved to the bottom of the trench, and the height and the thickness of the cushion layer are controlled according to the design height;
s4: hoisting the ditch body (1), hoisting the ditch body (1) into the groove by using hoisting equipment, and sequentially splicing the ditch body (1);
s5: constructing a holding tank (4), excavating soil on one side of the trench body (1), pouring fine aggregate concrete after a template is installed, and forming the holding tank (4) after the concrete is formed;
s6: fixing the mounting rod (3) to the groove body (1), then sequentially mounting the cover plate (2) on the mounting rod (3), and enabling the cover plate (2) to be in sliding connection with the mounting rod (3) to complete the mounting of the groove body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010635168.5A CN111779028A (en) | 2020-07-04 | 2020-07-04 | Finished prefabricated electric shallow trench and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010635168.5A CN111779028A (en) | 2020-07-04 | 2020-07-04 | Finished prefabricated electric shallow trench and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111779028A true CN111779028A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010635168.5A Pending CN111779028A (en) | 2020-07-04 | 2020-07-04 | Finished prefabricated electric shallow trench and construction method thereof |
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| CN (1) | CN111779028A (en) |
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| CN112538869A (en) * | 2020-11-30 | 2021-03-23 | 广东电网有限责任公司佛山供电局 | Cable well lid |
| CN112942433A (en) * | 2021-01-27 | 2021-06-11 | 嘉兴市恒光电力建设有限责任公司 | Anti-theft cable work well |
| US20220231398A1 (en) * | 2019-10-30 | 2022-07-21 | Furukawa Electric Co., Ltd. | Housing unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220231398A1 (en) * | 2019-10-30 | 2022-07-21 | Furukawa Electric Co., Ltd. | Housing unit |
| CN112538869A (en) * | 2020-11-30 | 2021-03-23 | 广东电网有限责任公司佛山供电局 | Cable well lid |
| CN112942433A (en) * | 2021-01-27 | 2021-06-11 | 嘉兴市恒光电力建设有限责任公司 | Anti-theft cable work well |
| CN112942433B (en) * | 2021-01-27 | 2023-12-19 | 嘉兴市恒光电力建设有限责任公司 | Antitheft cable work well |
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Application publication date: 20201016 |