CN217956611U - Protective cover of outdoor power current transformer junction box of transformer substation - Google Patents

Protective cover of outdoor power current transformer junction box of transformer substation Download PDF

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Publication number
CN217956611U
CN217956611U CN202222087870.XU CN202222087870U CN217956611U CN 217956611 U CN217956611 U CN 217956611U CN 202222087870 U CN202222087870 U CN 202222087870U CN 217956611 U CN217956611 U CN 217956611U
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China
Prior art keywords
cable
junction box
box body
shell
power current
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CN202222087870.XU
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Chinese (zh)
Inventor
汪旭
朱春良
周盛玮
黎源
胡斌
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Anhui Honglvhuang Electric Technology Co ltd
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Anhui Honglvhuang Electric Technology Co ltd
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Abstract

The utility model discloses a protective cover of a transformer substation outdoor power current transformer junction box, which comprises a shell, wherein a top cover is arranged at the top of the shell through screws, a junction box body is arranged in the shell, a cable connecting mechanism is arranged in the junction box body, cable pulling protection mechanisms are arranged on the inner walls of two sides of the shell, and a clamping mechanism for fixing the junction box body is arranged in the shell; the utility model discloses a set up the cab apron, it can press from both sides the cable of wearing out in the terminal box with the apron to make to cross the cab apron, through set up rectangle frame and spring in the casing, when making the cable pull from the outside, the effort shares the hookup location of cab apron and apron, and through the spring buffering to the tight position protection of cable clamp, the setting up through the device makes the cable also can receive the protection when being pulled unintentionally, increase the steadiness of junction, protect the terminal simultaneously, improve the life of terminal box.

Description

Protective cover of outdoor power current transformer junction box of transformer substation
Technical Field
The utility model relates to a terminal box technical field of transformer substation specifically is a protection casing of outdoor power current transformer terminal box of transformer substation.
Background
A junction box of a power current transformer used in an outdoor transformer substation is usually made of a three-proofing material, and a square-shaped structure is arranged at a connecting position of a cover box to ensure that the junction box has waterproof and dustproof functions, so that cables inside the junction box are protected, for example, a waterproof and anti-drop junction box disclosed in chinese patent CN106921080a comprises a junction box, a housing and a wiring structure; the bottom of the junction box is provided with a first wiring groove, and the housing is provided with a second wiring groove; the wiring structure is a socket type integrated wiring block, and a wiring socket integrated in the wiring structure faces to the first wiring groove; the wiring socket comprises a socket main body provided with a guiding conical surface and a thread sleeve, and a spinning structure provided with a screwing thread and a conical surface, wherein one end of the spinning structure is a screwing end, and the other end of the spinning structure is a pressing conical surface provided with pressing sharp teeth. Has the advantages of corrosion resistance, ageing resistance, anti-drop of the connecting terminal can prevent stealing electricity, and has high reliability.
The device avoids cable wiring department to deviate from the terminal under the external force pulling through adopting the toper face structure of screwing at the wiring position, causes contact failure, but the device is not provided with the pulling protective mechanism of cable, and when the cable pulling, although wiring department can not deviate from, nevertheless easy atress damages.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a protection casing of outdoor electric power current transformer terminal box of transformer substation, through the slip buffer gear who sets up the cable in the protection casing, make the cable pulling force can not direct action in wiring department when the pulling to the protection of wiring position.
In order to achieve the above object, the utility model provides a following technical scheme: a protective cover of a terminal box of an outdoor power current transformer of a transformer substation comprises a shell, wherein a top cover is mounted at the top of the shell through screws, a terminal box body is arranged in the shell, a cable connecting mechanism is arranged in the terminal box body, cable pulling protection mechanisms are arranged on the inner walls of two sides of the shell, a through wire groove is formed in the upper surface of the top cover, and a clamping mechanism for fixing the terminal box body is arranged in the shell;
the cable pulling protection mechanism comprises a v-shaped 21274and a shaped transition plate, wherein a cable positioning mechanism is arranged on one side of the transition plate, and a sliding buffer mechanism is arranged on the other side of the transition plate.
Preferably, the buffering mechanism that slides includes fixed frame, fixed frame is provided with two, the top of fixed frame inner wall is fixed with the spring, sliding connection is in two of them fixed frames respectively at the both ends of crossing the cab apron, the bottom of spring and the last fixed surface who crosses the cab apron are connected.
Preferably, the cable positioning mechanism comprises a rectangular strip-shaped cover plate, one side of the transition plate is provided with a plurality of integrally formed rectangular blocks, the cover plate is located on one side of the rectangular blocks, one end of the cover plate is rotatably connected with one end of the transition plate, and the other end of the cover plate is clamped with the transition plate.
Preferably, the clamping mechanism comprises an annular convex block, the convex block is welded at the bottom of the inner cavity of the shell, limiting holes are formed in two sides of the convex block, and the inner wall of the convex block is provided with an integrally formed annular bulge.
Preferably, the clamping mechanism further comprises a cylindrical boss, the boss is integrally formed on the lower surface of the junction box body, positioning rods are welded to the two sides of the boss, and the positioning rods are connected with the limiting holes in an inserting mode.
Preferably, the wiring block of the cable connecting mechanism is provided with a plurality of groups, the wiring block is fixed at the bottom of the inner cavity of the junction box body through screws, and through grooves for the cables to penetrate out are formed in two sides of the junction box body.
Preferably, the sliding buffer mechanisms and the cable fixing mechanisms are both provided with two groups, and the two groups of sliding buffer mechanisms are respectively positioned on one side of the junction box body, which is provided with the through groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a cab apron is crossed in the setting, it can press from both sides the cable of wearing out from the terminal box tightly with the apron to make cab apron, through set up rectangle frame and spring in the casing, when making the cable be dragged from the outside, the effort shares the hookup location of cab apron and apron, and through the position protection that spring buffering pressed from both sides the cable tight, setting up through the device makes the cable also can receive the protection when being dragged unintentionally, increase the steadiness of wiring department, protect the terminal simultaneously, improve the life of terminal box.
Drawings
Fig. 1 is an isometric view of the present invention;
FIG. 2 is a schematic structural view of the cable pull protection mechanism of the present invention;
FIG. 3 is a schematic structural view of the latch mechanism of the present invention;
fig. 4 is a front view of the junction box body of the present invention;
fig. 5 is a schematic structural view of the sliding buffer mechanism of the present invention.
In the figure: 1. a housing; 2. a top cover; 3. a junction box body; 4. a cable connection mechanism; 5. a cable pull protection mechanism; 6. a through wire groove; 7. a clamping mechanism; 8. a sliding buffer mechanism; 9. a cable positioning mechanism; 10. a transition plate; 801. a fixing frame; 802. a spring; 901. a cover plate; 902. a rectangular block; 701. a bump; 702. a limiting hole; 703. a protrusion; 704. a boss; 705. positioning a rod; 401. a junction block; 402. a through groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a protective cover of a terminal box of an outdoor power current transformer of a transformer substation comprises a shell 1, wherein a top cover 2 is installed at the top of the shell 1 through screws, a terminal box body 3 is arranged in the shell 1, a cable connecting mechanism 4 is arranged in the terminal box body 3, cable pulling protection mechanisms 5 are arranged on the inner walls of two sides of the shell 1, a through wire groove 6 is formed in the upper surface of the top cover 2, and a clamping mechanism 7 for fixing the terminal box body 3 is arranged in the shell 1;
the cable pulling protection mechanism 5 comprises a v-21274, a shaped transition plate 10, wherein one side of the transition plate 10 is provided with a cable positioning mechanism 9, and the other side of the transition plate 10 is provided with a sliding buffer mechanism 8.
The sliding buffer mechanism 8 comprises two fixing frames 801, a spring 802 is fixed on the top of the inner wall of each fixing frame 801, two ends of the transition plate 10 are respectively connected in the two fixing frames 801 in a sliding manner, and the bottom end of the spring 802 is fixedly connected with the upper surface of the transition plate 10;
the cable positioning mechanism 9 comprises a rectangular strip-shaped cover plate 901, a plurality of integrally formed rectangular blocks 902 are arranged on one side of the transition plate 10, the cover plate 901 is positioned on one side of the rectangular blocks 902, one end of the cover plate 901 is rotatably connected with one end of the transition plate 10, the other end of the cover plate 901 is clamped with the transition plate 10, the rectangular blocks 902 are used for limiting different cables, the height of the rectangular blocks is lower than the diameter of the cables, and the cables can be clamped when the cover plate 901 is covered;
the clamping mechanism 7 comprises an annular convex block 701, the convex block 701 is welded at the bottom of the inner cavity of the shell 1, limiting holes 702 are formed in two sides of the convex block 701, and an integrally-formed annular bulge 703 is formed in the inner wall of the convex block 701;
the clamping mechanism 7 further comprises a cylindrical boss 704, the boss 704 is integrally formed on the lower surface of the junction box body 3, positioning rods 705 are welded to two sides of the boss 704, the positioning rods 705 are inserted into the limiting holes 702, as shown in fig. 3 and 4, the junction box body 3 can be directly fixed with the shell 1 through pressing, the boss 704 is clamped into the annular projection 701 when in clamping, the positioning rods 705 are inserted into the limiting holes 702 to prevent the boss 704 from rotating in the projection 701, a groove is formed in the outer wall of the boss 704, and the projection 703 is clamped in the groove;
the cable connecting mechanism 4 comprises a wiring block 401, wherein a plurality of groups of wiring blocks 401 are arranged, the wiring blocks 401 are fixed at the bottom of the inner cavity of the junction box body 3 through screws, and through grooves 402 for cables to penetrate through are formed in the two sides of the junction box body 3;
two groups of sliding buffer mechanisms 8 and two groups of cable fixing mechanisms are arranged, and the two groups of sliding buffer mechanisms 8 are respectively positioned on one side of the junction box body 3 provided with the through groove 402;
when the terminal box is used, after the cables are connected with the wiring blocks 401, the cables penetrate through the through grooves 402, the outer walls of the cables are clamped in gaps between the adjacent rectangular blocks 902, the box cover plate 901 is covered, one end of the cover plate 901 is clamped and fixed with the transition plate 10, the cables are clamped between the transition plate 10 and the cover plate 901 by the cover plate 901 from the outer walls, and then the cables penetrate out of the shell 1 through the through groove 6, it should be noted that the cables on two sides of the terminal box body 3 are redundant in length between the fixing of the through grooves 402 to the cover plate 901, and the cables between the through grooves 402 and the cover plate 901 are prevented from being pulled tightly when the transition plate 10 moves to the top of the rectangular frame;
when an external force pulls the cable, the transition plate 10 is driven to move upwards firstly, the spring 802 is compressed, the pulling is blocked, the pulling force at the wiring position is shared, when the cable is released, the inner wall of the rectangular frame is glued with the friction plate to increase the friction force, the sliding contact surface of the transition plate 10 and the rectangular block 902 is not smooth, the damping of the spring 802 is replaced, the reset elastic force of the spring 802 is converted into the friction force, and as shown in fig. 5, the transition plate 10 is balanced.
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 (7)

1. The utility model provides a protection casing of outdoor power current transformer terminal box of transformer substation, includes casing (1), its characterized in that: a top cover (2) is mounted at the top of the shell (1) through screws, a junction box body (3) is arranged in the shell (1), a cable connecting mechanism (4) is arranged in the junction box body (3), cable pulling protection mechanisms (5) are arranged on the inner walls of two sides of the shell (1), a through wire groove (6) is formed in the upper surface of the top cover (2), and a clamping mechanism (7) for fixing the junction box body (3) is arranged in the shell (1);
the cable pulling protection mechanism (5) comprises a v-21274and a shaped transition plate (10), wherein a cable positioning mechanism (9) is arranged on one side of the transition plate (10), and a sliding buffer mechanism (8) is arranged on the other side of the transition plate (10).
2. The protective cover for the junction box of the outdoor power current transformer of the transformer substation as claimed in claim 1, wherein: slide buffer gear (8) are including fixed frame (801), fixed frame (801) are provided with two, the top of fixed frame (801) inner wall is fixed with spring (802), sliding connection is in two of them fixed frame (801) respectively at the both ends of crossing cab apron (10), the bottom of spring (802) and the last fixed surface who crosses cab apron (10) are connected.
3. The protective cover of the terminal box of the outdoor power current transformer of the transformer substation as claimed in claim 2, wherein: the cable positioning mechanism (9) comprises a rectangular strip-shaped cover plate (901), a plurality of integrally formed rectangular blocks (902) are arranged on one side of the transition plate (10), the cover plate (901) is located on one side of the rectangular blocks (902), one end of the cover plate (901) is rotatably connected with one end of the transition plate (10), and the other end of the cover plate (901) is clamped with the transition plate (10).
4. The protective cover of the terminal box of the outdoor power current transformer of the transformer substation of claim 3, wherein: clamping mechanism (7) include annular lug (701), lug (701) butt fusion is in the bottom of casing (1) inner chamber, the both sides of lug (701) are provided with spacing hole (702), the inner wall of lug (701) is provided with integrated into one piece's annular arch (703).
5. The protective cover of the terminal box of the outdoor power current transformer of the transformer substation of claim 4, wherein: clamping mechanism (7) still include cylindrical boss (704), boss (704) integrated into one piece is at the lower surface of terminal box body (3), the both sides butt fusion of boss (704) have locating lever (705), locating lever (705) are pegged graft with spacing hole (702).
6. The protective cover of the terminal box of the outdoor power current transformer of the transformer substation of claim 5, wherein: the cable connecting mechanism (4) is provided with a wiring block (401), the wiring block (401) is provided with a plurality of groups, the wiring block (401) is fixed at the bottom of an inner cavity of the junction box body (3) through screws, and through grooves (402) for cables to penetrate out are formed in the two sides of the junction box body (3).
7. The protective cover of the terminal box of the outdoor power current transformer of the transformer substation of claim 6, wherein: the sliding buffer mechanisms (8) and the cable fixing mechanisms are both provided with two groups, and the two groups of sliding buffer mechanisms (8) are respectively positioned on one side of the junction box body (3) provided with the through groove (402).
CN202222087870.XU 2022-08-09 2022-08-09 Protective cover of outdoor power current transformer junction box of transformer substation Active CN217956611U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222087870.XU CN217956611U (en) 2022-08-09 2022-08-09 Protective cover of outdoor power current transformer junction box of transformer substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222087870.XU CN217956611U (en) 2022-08-09 2022-08-09 Protective cover of outdoor power current transformer junction box of transformer substation

Publications (1)

Publication Number Publication Date
CN217956611U true CN217956611U (en) 2022-12-02

Family

ID=84227137

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222087870.XU Active CN217956611U (en) 2022-08-09 2022-08-09 Protective cover of outdoor power current transformer junction box of transformer substation

Country Status (1)

Country Link
CN (1) CN217956611U (en)

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