Ring main unit

Abstract

The utility model discloses a ring main unit, which comprises a cabinet body and a fuse arranged in the cabinet body, a lower wire holder of the fuse is connected with an external terminal through a wiring mechanism, and the wiring mechanism comprises a wiring board, a pressing assembly and a locking assembly. The wiring board is fixedly connected with a lower wiring seat of the fuse, the pressing assembly comprises a U-shaped plate, a first positioning rod and a second positioning rod, the position of the external wiring end is positioned through the U-shaped plate and a first positioning groove, and after pressing, the position of the U-shaped plate is locked through the locking assembly so as to lock the external wiring end. The utility model relates to the technical field of ring main units. According to the ring main unit, when an external wire is connected with a wiring board on a fuse, wiring can be rapidly completed in a narrow space in the ring main unit through cooperation of the pressing assembly and the locking assembly, the position of a wire end is positioned through design of a plurality of positioning rods and positioning grooves, and the practicability of the device in use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ring main unit technical field, concretely is a ring main unit. BACKGROUND

[0002] The ring main unit is a group of power transmission and distribution electrical equipment installed in the metal or nonmetal insulation cabinet or made into the electrical equipment of assembled interval type ring network power supply unit, the core part adopts the load switch and the fuse, has simple structure, small size, low price, can improve the power supply parameter and performance and the advantages such as power supply safety, it is widely used in the power distribution station and box type substation of city residential area, high -rise building, large -scale public building, factory enterprise and so on load center.

[0003] The patent announcement number "CN213520775U" discloses a ring main unit, which comprises a cabinet body, a disconnecting switch arranged on the cabinet body, the disconnecting switch comprising three closing areas, a partition plate connected to the disconnecting switch for separating the two adjacent closing areas, and a circuit breaker connected to the cabinet body, and the disconnecting switch is used to connect the circuit breaker.

[0004] As shown in the above-mentioned technology, the important component in the existing ring main unit is the fuse, which is installed in the interior of the ring main unit, and the wiring end on the fuse is connected with the external connecting wire, and the connection mode is to connect and fasten through bolts and nuts, but the operation space is limited in the interior of the ring main unit, and the nut rotation is easy to cause the end of the connecting wire to rotate. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a ring main unit, which solves the problem of inconvenient fuse wiring in the existing ring main unit.

[0006] To achieve the above object, the utility model realizes the following technical scheme: a ring main unit comprises a cabinet body and a fuse arranged in the interior of the cabinet body, the lower wiring seat of the fuse is connected with an external connecting end through a wiring mechanism, the wiring mechanism comprises a wiring board, a pressing assembly and a locking assembly;

[0007] The wiring board is fixedly connected with the lower wiring seat of the fuse, the pressing assembly comprises a U-shaped plate, a first positioning rod and a second positioning rod, the U-shaped plate is used for pressing the external connecting end, and the position of the external connecting end is positioned through the U-shaped plate and the first positioning groove, and after pressing, the position of the U-shaped plate is locked through the locking assembly to lock the external connecting end.

[0008] Preferably, the compression assembly further comprises two T-shaped rods, the two T-shaped rods are fixedly connected with the left side and the right side of the wiring board respectively, guide grooves are formed in the two sides of the U-shaped plate, and the U-shaped plate is movably connected with the T-shaped rods through the guide grooves.

[0009] Preferably, the second positioning rod is fixedly connected to the middle of the front surface of the wiring board, the wiring board is fixedly connected with two first positioning rods on the front surface, and the two first positioning rods are arranged on the left and right sides of the second positioning rod, and the second positioning groove and the two first positioning grooves are formed in the interior of the U-shaped plate, and the second positioning groove corresponds to the position of the second positioning rod, and the two first positioning grooves correspond to the positions of the two first positioning rods.

[0010] Preferably, the locking assembly is arranged in the interior of the second positioning rod, the locking assembly comprises an internal hexagonal bolt rod, the internal hexagonal bolt rod is rotatably connected with the back surface of the inner wall of the second positioning rod, a support frame is threadedly connected to the surface of the internal hexagonal bolt rod, at least four T-shaped slide rods are axially and equidistantly slidably connected to the surface of the support frame, and one end of the T-shaped slide rod located outside the internal hexagonal bolt rod is fixedly connected with a pressing block, and a reset spring is arranged on the surface of the T-shaped slide rod between the internal hexagonal bolt rod and the pressing block.

[0011] Preferably, the same number of sliding grooves as the number of the pressing blocks are formed in the surface of the second positioning rod in the circumferential direction, and the pressing blocks extend from the sliding grooves to the outside of the second positioning rod.

[0012] Preferably, the external wiring end comprises an external lead wire and a wiring head, two third positioning grooves corresponding to the positions of the first positioning rods are formed in the wiring head, and a fourth positioning groove corresponding to the position of the second positioning rod is formed in the wiring head, and the external lead wire is connected with the wiring head.

[0013] Beneficial effects

[0014] The utility model provides a kind of ring network cabinet.Compared with prior art, it has the following beneficial effects:

[0015] 1、The ring network cabinet, the compression assembly further comprises two T-shaped rods, the two T-shaped rods are fixedly connected with the left side and the right side of the wiring board respectively, guide grooves are formed in the two sides of the U-shaped plate, and the U-shaped plate is movably connected with the T-shaped rods through the guide grooves, when connecting the external lead wire with the wiring board on fuse, through the cooperation of compression assembly and locking assembly, wiring can be quickly completed in the narrow space in ring network cabinet, and the position of wiring head is positioned by the design of multiple positioning rods and positioning grooves, improve the practicability when device is used.

[0016] 2、The ring networkequipment, through the locking assembly is arranged in the inside of the second positioning rod, the locking assembly includes the hexagonal bolt rod, the hexagonal bolt rod is rotatably connected with the back of the inner wall of the second positioning rod, the surface of the hexagonal bolt rod is threadedly connected with the support frame, the pressing block in the locking assembly limits the position of the U-shaped rod, when the degree of compression is insufficient, the hexagonal bolt rod can be adjusted by rotating, the reliability of the device during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the appearance schematic view of the utility model;

[0018] Figure 2 It is the schematic view of the utility model wiring mechanism;

[0019] Figure 3 It is the schematic view of the utility model wiring board, compression assembly and locking assembly;

[0020] Figure 4 It is the schematic view of the utility model external lead and wiring head;

[0021] Figure 5 It is the sectional view of the locking assembly of the utility model.

[0022] In the drawing: 1, cabinet body;2, fuse;3, wiring board;4, compression assembly;41, T-shaped rod;42, U-shaped plate;43, first positioning groove;44, second positioning groove;45, first positioning rod;46, second positioning rod;47, guide groove;5, locking assembly;51, hexagonal bolt rod;52, support frame;53, T-shaped slide rod;54, pressing block;55, reset spring;56, sliding groove;6, external lead;7, wiring head;71, third positioning groove;72, fourth positioning groove;8, low-voltage control room 9, load switch;10, main bus. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0025] The first embodiment comprises a cabinet body 1 and a fuse 2 arranged inside the cabinet body 1, the top of the cabinet body 1 is provided with a low-voltage control chamber, and the inside of the cabinet body 1 is provided with a main bus 9 and a control switch 10, the lower terminal block of the fuse 2 is connected with an external wire end through a wiring mechanism, the wiring mechanism comprises a wiring board 3, a pressing assembly 4 and a locking assembly 5;

[0026] The wiring board 3 is fixedly connected with the lower terminal block of the fuse 2, the pressing assembly 4 comprises a U-shaped plate 42, a first positioning rod 45 and a second positioning rod 46, the U-shaped plate 42 is used for pressing the external wire end, and the position of the external wire end is positioned through the U-shaped plate 42 and the first positioning groove 43, and the position of the U-shaped plate 42 is locked through the locking assembly 5 after being pressed to lock the external wire end.

[0027] The pressing assembly 4 further comprises two T-shaped rods 41, the two T-shaped rods 41 are fixedly connected with the left side and the right side of the wiring board 3 respectively, the two sides of the U-shaped plate 42 are provided with guide grooves 47, and the U-shaped plate 42 is movably connected with the T-shaped rods 41 through the guide grooves 47, the U-shaped plate 42 can rotate and slide along the outside of the T-shaped rods 41, the second positioning rod 46 is fixedly connected to the middle position of the front surface of the wiring board 3, the first positioning rods 45 are fixedly connected to the front surface of the wiring board 3, and the two first positioning rods 45 are distributed on the left and right sides of the second positioning rod 46, the second positioning groove 44 and the two first positioning grooves 43 are arranged in the inside of the U-shaped plate 42, the second positioning groove 44 corresponds to the position of the second positioning rod 46, and the two first positioning grooves 43 correspond to the positions of the two first positioning rods 45, the external wire end comprises an external wire 6 and a wire head 7, two third positioning grooves 71 corresponding to the positions of the first positioning rods 45 are arranged on the wire head 7, and a fourth positioning groove 72 corresponding to the position of the second positioning rod 46 is arranged on the wire head 7, and the external wire 6 is connected with the wire head 7.

[0028] When the external wire 6 is connected with the wiring board 3 on the fuse 2, the cooperation of the pressing assembly 4 and the locking assembly 5 can quickly complete the wiring in the narrow space in the ring network cabinet, and the position of the wire head 7 is positioned through the design of the multiple positioning rods and the positioning grooves, thereby improving the practicability of the device in use.

[0029] The second embodiment has the main difference from the first embodiment that the locking assembly 5 is arranged inside the second positioning rod 46, the locking assembly 5 comprises a hexagonal bolt rod 51 rotatably connected with the back of the inner wall of the second positioning rod 46, the surface of the hexagonal bolt rod 51 is threadedly connected with a support frame 52, the surface of the support frame 52 is axially and equidistantly slidably connected with at least four T-shaped slide rods 53, one end of the T-shaped slide rod 53 located outside the hexagonal bolt rod 51 is fixedly connected with a pressing block 54, the surface of the T-shaped slide rod 53 located between the hexagonal bolt rod 51 and the pressing block 54 is sleeved with a reset spring 55, the surface of the second positioning rod 46 is circumferentially provided with a number of slide grooves 56 same as that of the pressing block 54, and the pressing block 54 extends from the slide groove 56 to the outside of the second positioning rod 46.

[0030] The pressing block 54 in the locking assembly 5 limits the position of the U-shaped rod 42, and when the pressing degree is insufficient, the hexagonal bolt rod 51 can be rotated to adjust, thereby improving the reliability of the device in use.

[0031] When wiring, the U-shaped plate 42 is upwardly rotated, and the third positioning groove 71 and the fourth positioning groove 72 on the wiring head 7 are aligned with the first positioning groove 43 and the second positioning groove 44 on the wiring plate 3, so that the wiring head 7 is sleeved on the first positioning groove 43 and the second positioning groove 44, the U-shaped plate 42 is downwardly rotated, and when the U-shaped plate 42 is rotated to the horizontal position, the U-shaped plate 42 is pushed to the front of the wiring head 7, and the first positioning rod 45 and the second positioning rod 46 are respectively penetrated from the first positioning groove 43 and the second positioning groove 44, in the process that the U-shaped plate 42 approaches the wiring head 7, the U-shaped plate 42 contacts the pressing block 54 and pushes the pressing block 54 to retract into the second positioning rod 46, after the U-shaped plate 42 passes the position of the pressing block 54, the pressing block 54 is reset under the action of the reset spring 55 and is blocked in front of the U-shaped plate 42, at this time, the wiring is completed, and when the pressing degree of the U-shaped plate 42 on the wiring head 7 is low, the hexagonal bolt rod 51 is rotated to move the support frame 52, so as to increase the pressing degree.

[0032] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ring main unit, comprising a cabinet (1) and a fuse (2) arranged inside the cabinet (1), characterized in that: The lower terminal seat of the fuse (2) is connected with an external terminal through a wiring mechanism, which comprises a wiring board (3), a pressing assembly (4) and a locking assembly (5); The wiring board (3) is fixedly connected with the lower terminal seat of the fuse (2), the pressing assembly (4) comprises a U-shaped plate (42), a first positioning rod (45) and a second positioning rod (46), the U-shaped plate (42) is used for pressing the external terminal, and the position of the external terminal is positioned through the U-shaped plate (42) and the first positioning groove (43), and the position of the U-shaped plate (42) is locked through the locking assembly (5) after pressing to lock the external terminal.

2. The ring main unit according to claim 1, characterized in that: The pressing assembly (4) further comprises two T-shaped rods (41) on the left and right, the two T-shaped rods (41) are respectively fixedly connected with the left side and the right side of the wiring board (3), the two sides of the U-shaped plate (42) are provided with guide grooves (47), and the U-shaped plate (42) is movably connected with the T-shaped rod (41) through the guide groove (47), and the U-shaped plate (42) can rotate and slide along the outside of the T-shaped rod (41).

3. The ring main unit according to claim 1, characterized in that: The second positioning rod (46) is fixedly connected to the middle position of the front surface of the wiring board (3), the front surface of the wiring board (3) is fixedly connected with two first positioning rods (45) on the left and right, and the two first positioning rods (45) are distributed on the left and right sides of the second positioning rod (46), the inside of the U-shaped plate (42) is provided with a second positioning groove (44) and two first positioning grooves (43), and the second positioning groove (44) corresponds to the position of the second positioning rod (46), and the two first positioning grooves (43) correspond to the positions of the two first positioning rods (45).

4. The ring main unit according to claim 1, characterized in that: The locking assembly (5) is arranged in the inside of the second positioning rod (46), the locking assembly (5) comprises an internal hexagonal bolt rod (51), the internal hexagonal bolt rod (51) is rotatably connected with the back surface of the inner wall of the second positioning rod (46), the surface of the internal hexagonal bolt rod (51) is threadedly connected with a support frame (52), the surface of the support frame (52) is axially and equidistantly slidably connected with at least four T-shaped slide rods (53), one end of the T-shaped slide rod (53) located outside the internal hexagonal bolt rod (51) is fixedly connected with a pressing block (54), and the surface of the T-shaped slide rod (53) between the internal hexagonal bolt rod (51) and the pressing block (54) is sleeved with a reset spring (55).

5. The ring main unit according to claim 4, characterized in that: The surface of the second positioning rod (46) is provided with a sliding groove (56) with the same number as the pressing block (54) along the circumference, and the pressing block (54) extends from the sliding groove (56) to the outside of the second positioning rod (46).

6. The ring main unit according to claim 3, characterized in that: The external terminal comprises an external lead wire (6) and a terminal head (7), two third positioning grooves (71) corresponding to the positions of the first positioning rods (45) are formed on the terminal head (7), a fourth positioning groove (72) corresponding to the position of the second positioning rod (46) is formed on the terminal head (7), and the external lead wire (6) is connected with the terminal head (7).

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