CN111740365A - Built-in cable protective structure's branch box for wiring - Google Patents
Built-in cable protective structure's branch box for wiring Download PDFInfo
- Publication number
- CN111740365A CN111740365A CN202010698357.7A CN202010698357A CN111740365A CN 111740365 A CN111740365 A CN 111740365A CN 202010698357 A CN202010698357 A CN 202010698357A CN 111740365 A CN111740365 A CN 111740365A
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- Prior art keywords
- arc
- box
- fixedly connected
- plate
- wiring
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Classifications
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/081—Bases, casings or covers
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0616—Joints for connecting tubing to casing
- H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
- H02G3/0666—Joints for connecting tubing to casing with means for preventing disengagement of conductors with means clamping the armour of the conductor
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a junction box with a built-in cable protection structure for wiring, which comprises a box body, a box cover and a wiring terminal, wherein partition plates are fixedly connected to two sides of the front surface and two sides of the back surface of the inner wall of the box body, protection mechanisms are fixedly connected to the front surface and the back surface of the bottom of the inner wall of the box body, each protection mechanism comprises a base, a first bolt, a first arc-shaped plate and a second arc-shaped plate, a first fixing plate is fixedly connected to the bottom of the left side of the first arc-shaped plate, and a second fixing plate matched with the first fixing plate is fixedly connected to the top of the left side of the second arc-shaped plate. This branch box for wiring of built-in cable protective structure includes base, first bolt, first arc and second arc through protection machanism, arranges like cable together, then passes protection machanism with the cable, carries out the winding displacement arrangement to the cable through protection machanism, prevents that the chaotic winding of cable is in the same place, has reduced the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of junction boxes, in particular to a junction box with a built-in cable protection structure for wiring.
Background
The branch box is the terminal of the distribution cable or the optical cable, connects the distribution cable or the optical cable and the user line part, branches the main line, has important function, can be installed in the narrow space such as bridge, box, pipeline, cable trench, etc., does not occupy the effective use area of the building, is convenient to install, does not need to cut off the main cable, is a kind of industrial connector, is the equipment that can output a plurality of current or data signals by shunting conversion of an accessed power supply or data, so the general M8 and M12 branch boxes refer to the branch boxes with the line sockets of M8 or M12 specification, and is different from the common socket in that the power output of the common socket only has two stages of positive and negative, or has one ground wire, while the industrial branch boxes, the power output is the needle-shaped I/O port, the connection mode can be divided into two types of crimping type and clamping type, and the installation mode can be divided into two types of hanging type and embedding type.
At present generally carry out the branch line to the cable in the branch box, the branch box plays the effect with cable shunting or switching, but inside the present branch box, when carrying out the shunting to the cable, inside winding displacement is comparatively in disorder, leads to the cable winding together easily, and the arrangement of being not convenient for has increased the potential safety hazard, and when the cable received the outside and dragged, the wiring dropped easily.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the junction box for wiring with the built-in cable protection structure, which solves the problems that when cables are tapped, internal flat cables are messy, the cables are easily wound together, the arrangement is inconvenient, potential safety hazards are increased, and when the cables are pulled from the outside, the wiring is easily dropped.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a junction box for wiring with a built-in cable protection structure comprises a box body, a box cover and a wiring terminal, wherein two sides of the front surface and two sides of the back surface of the inner wall of the box body are both fixedly connected with a partition plate, and the front surface and the back surface of the bottom of the inner wall of the box body are both fixedly connected with a protection mechanism;
the protection mechanism comprises a base, a first bolt, a first arc-shaped plate and a second arc-shaped plate, wherein the bottom of the left side of the first arc-shaped plate is fixedly connected with a first fixing plate, the top of the left side of the second arc-shaped plate is fixedly connected with a second fixing plate matched with the first fixing plate, the top of the first fixed plate is in threaded connection with a screw, both sides of the top of the first arc-shaped plate are fixedly connected with springs, and one end of the spring far away from the first arc-shaped plate is fixedly connected with an arc-shaped top plate, two sides of the bottom of the arc-shaped top plate and one side opposite to the two springs are fixedly connected with a connecting rod, one end of the connecting rod, which is far away from the arc-shaped top plate, penetrates through the first arc-shaped plate and extends to the bottom of the first arc-shaped plate, the connecting rod extends to the one end fixedly connected with connecting plate of first arc bottom, and the bottom fixedly connected with rubber pad of connecting plate.
Preferably, the top of base and the bottom fixed connection of second arc, the right side at second arc top is articulated mutually with the right side of first arc bottom, the bottom of screw runs through first fixed plate and second fixed plate in proper order and extends to the outside of second fixed plate, the bottom of base and the top of box inner wall pass through first bolt threaded connection, the bottom of first bolt runs through base and box in proper order and extends to the inside of box.
Preferably, the bottom of the partition board is fixedly connected with the bottom of the inner wall of the box body, the second arc-shaped board comprises a base layer and an insulating layer, and one side, opposite to the insulating layer, of the base layer is bonded through an adhesive.
Preferably, the bottom of box inner wall and binding post's bottom fixed connection, the front intercommunication of box has the inlet wire pipe, the back intercommunication of box has the outlet wire pipe.
Preferably, first seal grooves are formed in the two sides of the top of the box body, and second seal grooves are formed in the front face and the back face of the top of the box body.
Preferably, the both sides of case lid bottom all fixedly connected with the first sealed pad of first seal groove looks adaptation, the front of case lid bottom all fixedly connected with the back all sealed pad of second seal groove looks adaptation.
Preferably, threaded holes are formed in four corners of the top of the box body, and second bolts matched with the threaded holes are connected to the four corners of the top of the box cover in a threaded mode.
Preferably, the threaded end of the second bolt penetrates through the box cover and the box body in sequence and extends to the interior of the box body.
(III) advantageous effects
The invention provides a junction box for wiring with a built-in cable protection structure. Compared with the prior art, the method has the following beneficial effects:
(1) the junction box for wiring of the built-in cable protection structure comprises a base, a first bolt, a first arc-shaped plate and a second arc-shaped plate through a protection mechanism, wherein the left bottom of the first arc-shaped plate is fixedly connected with a first fixing plate, the left top of the second arc-shaped plate is fixedly connected with a second fixing plate matched with the first fixing plate, the top of the first fixing plate is in threaded connection with a screw, two sides of the top of the first arc-shaped plate are both fixedly connected with springs, one end of each spring, far away from the first arc-shaped plate, is fixedly connected with an arc-shaped top plate, two sides of the bottom of each arc-shaped top plate are positioned between one sides, opposite to the two springs, one end of each connecting rod, far away from the arc-shaped top plate, penetrates through the first arc-shaped plate and extends to the bottom of the first arc-shaped plate, one end, the cable arranging device has the advantages that the cables of the same type are arranged together, then the cables penetrate through the protection mechanism, and the cables are arranged in a winding manner through the protection mechanism, so that the cables are prevented from being wound in a disordered manner, and potential safety hazards are reduced.
(2) This branch box for wiring of built-in cable protective structure, first seal groove has all been seted up through the both sides at box top, the second seal groove has all been seted up at the front and the back at box top, the first sealed pad of the equal fixedly connected with in both sides of case lid bottom and first seal groove looks adaptation, the front of case lid bottom and the second sealed pad of the equal fixedly connected with in the back and second seal groove looks adaptation, set up the seal groove on the box, set up sealed the pad on the case lid, the leakproofness of this branch box has been improved, prevent that dust and water from getting into in the box, play the effect of protection to the cable.
(3) This built-in cable protective structure's junction box for wiring, include basic unit and insulating layer through the second arc, bond through the adhesive between the one side that basic unit and insulating layer are relative mutually, first bolt threaded connection is passed through at the bottom of base and the top of box inner wall, the bottom of first bolt runs through base and box in proper order and extends to the inside of box, be provided with insulating the pad inside protection machanism, the security of using has been improved, protection machanism passes through the base and the bolt is connected with the box simultaneously, be convenient for dismantle the maintenance to this protection machanism.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a top view of the internal structure of the case of the present invention;
FIG. 3 is a front view of the guard mechanism structure of the present invention;
FIG. 4 is a cross-sectional view of a second arched plate structure according to the present invention;
fig. 5 is a bottom view of the lid structure of the present invention.
In the figure, 1 a box body, 2 a box cover, 3 a wiring terminal, 4 partition plates, 5 a protection mechanism, 51 a base, 52 a first bolt, 53 a first arc-shaped plate, 54 a second arc-shaped plate, 541 a base layer, 542 an insulating layer, 55 a first fixing plate, 56 a second fixing plate, 57 a screw, 58 a spring, 59 an arc-shaped top plate, 510 connecting rods, 511 connecting plates, 512 rubber gaskets, 6 a wire inlet pipe, 7 a wire outlet pipe, 8 a first sealing groove, 9 a second sealing groove, 10 a first sealing gasket, 11 a second sealing gasket, 12 threaded holes and 13 a second bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a junction box for wiring of a built-in cable protection structure comprises a box body 1, a box cover 2 and a wiring terminal 3, wherein threaded holes 12 are formed in four corners of the top of the box body 1, second bolts 13 matched with the threaded holes 12 are connected to the four corners of the top of the box cover 2 in a threaded manner, the box body 1 and the box cover 2 are conveniently fixed through the arrangement of the second bolts 13 and the threaded holes 12, threaded ends of the second bolts 13 sequentially penetrate through the box cover 2 and the box body 1 and extend into the box body 1, first sealing gaskets 10 matched with first sealing grooves 8 are fixedly connected to two sides of the bottom of the box cover 2, second sealing gaskets 11 matched with second sealing grooves 9 are fixedly connected to the front side and the back side of the bottom of the box cover 2, the arrangement of the first sealing gaskets 10 and the second sealing gaskets 11 improves the sealing performance of the junction box, dust and water are prevented from entering the box body 1, and the junction box plays a role in, the two sides of the top of the box body 1 are respectively provided with a first sealing groove 8, the front and the back of the top of the box body 1 are respectively provided with a second sealing groove 9, the bottom of the inner wall of the box body 1 is fixedly connected with the bottom of the wiring terminal 3, the front of the box body 1 is communicated with the wire inlet pipe 6, the three wire inlet pipes 6 are arranged, the back of the box body 1 is communicated with the wire outlet pipe 7, the three wire outlet pipes 7 are arranged, the two sides of the front and the two sides of the back of the inner wall of the box body 1 are respectively and fixedly connected with a partition plate 4, the partition plates 4 are arranged to be convenient for classifying and separating different types of cables, the bottom of the partition plates 4 is fixedly connected with the bottom of the inner wall of the box body 1, the second arc-shaped plate 54 comprises a base layer 541 and an insulating layer 542, the first arc-shaped plate 53 and the second arc-shaped plate 54 are structurally identical and also comprise, the front and the back of the bottom of the inner wall of the box body 1 are fixedly connected with a protection mechanism 5, the protection mechanism 5 comprises a base 51, a first bolt 52, a first arc-shaped plate 53 and a second arc-shaped plate 54, the top of the base 51 is fixedly connected with the bottom of the second arc-shaped plate 54, the right side of the top of the second arc-shaped plate 54 is hinged with the right side of the bottom of the first arc-shaped plate 53, the bottom end of a screw 57 sequentially penetrates through a first fixing plate 55 and a second fixing plate 56 and extends to the outside of the second fixing plate 56, the bottom of the base 51 is in threaded connection with the top of the inner wall of the box body 1 through the first bolt 52, the protection mechanism 5 is connected with the box body 1 through the base 51 and the first bolt 52, the protection mechanism 5 is convenient to detach and maintain, the bottom end of the first bolt 52 sequentially penetrates through the base 51 and the box body 1 and extends to the inside of the box, the top of the left side of the second arc-shaped plate 54 is fixedly connected with a second fixing plate 56 matched with the first fixing plate 55, the top of the first fixing plate 55 is in threaded connection with a screw 57, both sides of the top of the first arc-shaped plate 53 are fixedly connected with springs 58, the springs 58 can be replaced to ensure elasticity, an arc top plate 59 is fixedly connected to one end of the spring 58 far away from the first arc-shaped plate 53, connecting rods 510 are fixedly connected to two sides of the bottom of the arc top plate 59 and between the two opposite sides of the two springs 58, one end of each connecting rod 510 far away from the arc top plate 59 penetrates through the first arc-shaped plate 53 and extends to the bottom of the first arc-shaped plate 53, a connecting plate 511 is fixedly connected to one end of each connecting rod 510 extending to the bottom of the first arc-shaped plate 53, the connecting plate 511 is arc-shaped, the shape of the cable is matched, the bottom of the connecting plate 511 is fixedly connected with a rubber pad 512, and the rubber pad 512 plays a role in preventing electric conduction.
When the cable connecting device works, after different types of cables enter the box body 1 through different inlet tubes 6, the screws 57 are screwed out of the first fixing plate 55 and the second fixing plate 56, the first arc-shaped plate 53 is opened towards one side, a plurality of cables penetrate through the second arc-shaped plate 54 and are connected with the connecting terminals 3, after the connection is finished, the first arc-shaped plate 53 is covered on the second arc-shaped plate 54 again, the first fixing plate 55 and the second fixing plate 56 are fixed through the screws 57, the first arc-shaped plate 53 can be fixed on the second arc-shaped plate 54, at the moment, a cable bundle formed by the plurality of cables extrudes the connecting plate 511 at the bottom of the first arc-shaped plate 53, so that the connecting plate 511 moves upwards, the connecting rod 510 moves towards the top of the first arc-shaped plate 53, the spring 58 stretches upwards, and then under the reaction force of the spring 58, the arc-shaped top plate 59, the connecting rod 510 and the connecting plate 511, it is fixed to protect the cable, prevent cable intertwine, the security is higher when rubber pad 512 makes the use with insulating pad, prevent electrically conductive, base 51 is fixed in box 1 through first bolt 52, after the wiring is accomplished, combine together case lid 2 and box 1, screw hole 12 on box 1 is screwed into through case lid 2 with second bolt 13, simultaneously first sealed pad 10 on case lid 2 gets into first seal groove 8 and second seal groove 9 on the box 1 respectively with second sealed pad 11, seal fixedly to this branch box.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a built-in cable protective structure's branch box for wiring, includes box (1), case lid (2) and binding post (3), its characterized in that: the two sides of the front surface and the two sides of the back surface of the inner wall of the box body (1) are fixedly connected with partition plates (4), and the front surface and the back surface of the bottom of the inner wall of the box body (1) are fixedly connected with protection mechanisms (5);
the protection mechanism (5) comprises a base (51), a first bolt (52), a first arc-shaped plate (53) and a second arc-shaped plate (54), wherein a first fixing plate (55) is fixedly connected to the left bottom of the first arc-shaped plate (53), a second fixing plate (56) matched with the first fixing plate (55) is fixedly connected to the left top of the second arc-shaped plate (54), a screw (57) is connected to the top of the first fixing plate (55) in a threaded manner, springs (58) are fixedly connected to both sides of the top of the first arc-shaped plate (53), an arc-shaped top plate (59) is fixedly connected to one end, away from the first arc-shaped plate (53), of each spring (58), a connecting rod (510) is fixedly connected to both sides of the bottom of each arc-shaped top plate (59) and located between the two opposite sides of the two springs (58), one end, away from the arc-shaped top plate (59), of each connecting rod (510) penetrates through the first arc-shaped plate (53) and, the connecting rod (510) extends to one end fixedly connected with connecting plate (511) at the bottom of the first arc-shaped plate (53), and the bottom of the connecting plate (511) is fixedly connected with a rubber pad (512).
2. The distribution box for wiring of an internal cable protection structure according to claim 1, wherein: the top of base (51) and the bottom fixed connection of second arc (54), the right side at second arc (54) top is articulated mutually with the right side of first arc (53) bottom, the bottom of screw (57) runs through first fixed plate (55) and second fixed plate (56) in proper order and extends to the outside of second fixed plate (56), the bottom of base (51) and the top of box (1) inner wall are through first bolt (52) threaded connection, the bottom of first bolt (52) runs through base (51) and box (1) in proper order and extends to the inside of box (1).
3. The distribution box for wiring of an internal cable protection structure according to claim 1, wherein: the bottom of baffle (4) and the bottom fixed connection of box (1) inner wall, second arc board (54) include basic unit (541) and insulating layer (542), bond through the adhesive between the relative one side of basic unit (541) and insulating layer (542).
4. The distribution box for wiring of an internal cable protection structure according to claim 1, wherein: the bottom of box (1) inner wall and the bottom fixed connection of binding post (3), the front intercommunication of box (1) has inlet wire pipe (6), the back intercommunication of box (1) has outlet wire pipe (7).
5. The distribution box for wiring of an internal cable protection structure according to claim 1, wherein: first seal groove (8) have all been seted up to the both sides at box (1) top, second seal groove (9) have all been seted up to the front and the back at box (1) top.
6. The distribution box for wiring of an internal cable protection structure according to claim 5, wherein: the utility model discloses a case lid, including case lid (2), the first sealed pad (10) of both sides equal fixedly connected with and first seal groove (8) looks adaptation of case lid (2) bottom, the sealed pad (11) of second of the equal fixedly connected with in front and the back of case lid (2) bottom and second seal groove (9) looks adaptation.
7. The distribution box for wiring of an internal cable protection structure according to claim 1, wherein: threaded holes (12) are formed in four corners of the top of the box body (1), and second bolts (13) matched with the threaded holes (12) are connected to the four corners of the top of the box cover (2) in a threaded mode.
8. The distribution box for wiring of an internal cable protection structure according to claim 7, wherein: and the threaded end of the second bolt (13) penetrates through the box cover (2) and the box body (1) in sequence and extends to the interior of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698357.7A CN111740365A (en) | 2020-07-20 | 2020-07-20 | Built-in cable protective structure's branch box for wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698357.7A CN111740365A (en) | 2020-07-20 | 2020-07-20 | Built-in cable protective structure's branch box for wiring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111740365A true CN111740365A (en) | 2020-10-02 |
Family
ID=72656014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698357.7A Pending CN111740365A (en) | 2020-07-20 | 2020-07-20 | Built-in cable protective structure's branch box for wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111740365A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821289A (en) * | 2021-02-20 | 2021-05-18 | 江西沃克机械设备有限公司 | Cable laying frame for mining machinery |
| CN112838538A (en) * | 2021-03-02 | 2021-05-25 | 深圳市康时源科技有限公司 | Junction box for cable installation |
| CN114156817A (en) * | 2021-12-02 | 2022-03-08 | 国网江苏省电力有限公司淮安供电分公司 | Insulating locking system of transferring of distribution network electric wire |
| CN115117821A (en) * | 2022-08-29 | 2022-09-27 | 江苏长河电子有限公司 | Assembled waterproof junction box |
| CN117134269A (en) * | 2023-10-20 | 2023-11-28 | 国网山东省电力公司博兴县供电公司 | Power supply pipeline installation fastener |
-
2020
- 2020-07-20 CN CN202010698357.7A patent/CN111740365A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821289A (en) * | 2021-02-20 | 2021-05-18 | 江西沃克机械设备有限公司 | Cable laying frame for mining machinery |
| CN112838538A (en) * | 2021-03-02 | 2021-05-25 | 深圳市康时源科技有限公司 | Junction box for cable installation |
| CN112838538B (en) * | 2021-03-02 | 2022-03-15 | 深圳市康时源科技有限公司 | Junction box for cable installation |
| CN114156817A (en) * | 2021-12-02 | 2022-03-08 | 国网江苏省电力有限公司淮安供电分公司 | Insulating locking system of transferring of distribution network electric wire |
| CN114156817B (en) * | 2021-12-02 | 2024-05-07 | 国网江苏省电力有限公司淮安供电分公司 | Power distribution network wire insulation fastening locking system |
| CN115117821A (en) * | 2022-08-29 | 2022-09-27 | 江苏长河电子有限公司 | Assembled waterproof junction box |
| CN115117821B (en) * | 2022-08-29 | 2022-11-08 | 江苏长河电子有限公司 | Assembled waterproof junction box |
| CN117134269A (en) * | 2023-10-20 | 2023-11-28 | 国网山东省电力公司博兴县供电公司 | Power supply pipeline installation fastener |
| CN117134269B (en) * | 2023-10-20 | 2024-02-02 | 国网山东省电力公司博兴县供电公司 | Power supply pipeline installation fastener |
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