CN212934387U

CN212934387U - Novel zero sequence mutual inductor protective housing

Info

Publication number: CN212934387U
Application number: CN202022326999.2U
Authority: CN
Inventors: 刘勇权
Original assignee: Tianjin Guangxin Photoelectric Technology Co ltd
Current assignee: Tianjin Guangxin Photoelectric Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-04-09
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to a protective housing technical field just discloses a novel zero sequence transformer protective housing, be open-ended lower protective housing and bottom including the top and be open-ended last protective housing, the zero sequence transformer main part has been placed on the bottom inner wall of lower protective housing, and the top of zero sequence transformer main part and the top inner wall sliding contact of last casing, and the fixed slot has all been seted up to the bottom both sides of going up the protective housing, and the top fixed mounting of lower protective housing has two fixed columns, and the top of two fixed columns clamps with corresponding fixed slot respectively mutually, has all seted up the sliding tray on the one side inner wall that two fixed slots are close to each other, and equal slidable mounting has the sliding plate in two sliding trays, and first draw-in groove has all been seted up to one side. The utility model discloses can be fast convenient carry out the dismouting with last protective housing from the lower protective housing, made things convenient for the maintenance or the change of zeroth order mutual-inductor main part, labour saving and time saving has satisfied user's needs.

Description

Novel zero sequence mutual inductor protective housing

Technical Field

The utility model relates to a protective housing technical field especially relates to a novel zero sequence transformer protective housing.

Background

The outgoing line cabinet of the outdoor ring main unit is generally a breaker cabinet, and a zero sequence transformer needs to be installed to ensure that zero sequence protection can normally act. Meanwhile, the zero sequence transformer is generally large in size, and the cable chamber in the outdoor ring main unit is small in size, so that the zero sequence transformer is generally placed in a cable trench below the cable chamber in actual operation. Because the cable trench is generally wet and has dust, the zero sequence transformer is very easy to generate a short circuit condition due to the accumulation of the moisture and the dust, so that the normal work of the protection device is influenced, even the protection misoperation is generated, the switch is abnormally tripped, and the normal power supply is influenced.

The application numbers are: 201720111544.4 discloses a novel zero sequence transformer protective housing, including the safety cover inferior valve, the lower extreme of safety cover epitheca is connected to the upper end of safety cover inferior valve, the inside zero sequence transformer that is equipped with of safety cover inferior valve, a side on safety cover epitheca upper portion is connected with the wire cap of screwing through the wire draw-off structure, the safety cover epitheca comprises casing and safety cover epitheca shell body in the safety cover epitheca, the casing sets up the left side at the safety cover epitheca shell body in the safety cover epitheca. The utility model discloses structure complexity greatly reduced makes, simple to use, connects reliably, easy dismounting, and the wire is drawn forth the hole and is drawn forth the wire to and the wire draws forth drill way waterproof coating's use, makes mutual-inductor and outside isolated, thereby plays dustproof, damp-proofing purpose.

Above-mentioned patent is inconvenient to the dismouting of protective housing in the use, in case zero sequence transformer damages, maintains very difficulty to it, takes trouble hard, can not satisfy user's needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art in the use, inconvenient to the dismouting of protective housing, in case zero sequence transformer damages, it is very difficult to maintain it, takes trouble hard, can not satisfy the problem of user's needs, and the novel zero sequence transformer protecting sheathing that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel zero sequence transformer protective shell comprises a lower protective shell with an opening at the top and an upper protective shell with an opening at the bottom, wherein a zero sequence transformer main body is placed on the inner wall of the bottom of the lower protective shell, the top of the zero sequence transformer main body is in sliding contact with the inner wall of the top of an upper shell, both sides of the bottom of the upper protective shell are provided with fixed grooves, two fixed columns are fixedly mounted at the top of the lower protective shell, the top ends of the two fixed columns are respectively clamped with the corresponding fixed grooves, sliding grooves are respectively formed in the inner walls of one sides, close to each other, of the two fixed grooves, sliding plates are respectively and slidably mounted in the two sliding grooves, one side, close to each other, of the two fixed columns is provided with a first clamping groove, one end, far away from each other, of the two sliding plates is respectively clamped with the corresponding first clamping groove, one side, close to each, the end of each sliding plate close to each other is provided with a thread groove, the internal threads in the two thread grooves have opposite rotating directions, the two connecting grooves are internally and rotatably provided with a screw rod, the end of each screw rod far away from each other respectively extends into the corresponding thread groove and is in threaded connection with the corresponding thread groove, the end of each screw rod close to each other extends into the rectangular groove and is fixedly provided with a connecting column, the top of the upper protective shell is provided with a rotating hole which is communicated with the rectangular groove, a rotating rod is rotatably arranged in the rotating hole, the bottom end of the rotating rod extends into the rectangular groove and is fixedly provided with a first bevel gear, and the outer side of the connecting column is fixedly sleeved with a second bevel gear, and the second bevel gear meshes with first bevel gear mutually, and the top of dwang extends to the top of last protective housing and fixed mounting has the rolling disc, and first bevel gear and second bevel gear change pivoted direction.

Preferably, a moving groove is formed in the top of the upper protective shell, a moving plate is slidably mounted in the moving groove, the top end of the moving plate extends to the upper portion of the upper protective shell, an L-shaped rod is fixedly mounted on the top of the upper protective shell, a second clamping groove is formed in the top of the rotating disc, one end, far away from the moving plate, of the L-shaped rod is clamped with the second clamping groove, and the L-shaped rod and the second clamping groove are clamped to fix the rotating disc.

Preferably, first chutes are formed in inner walls of two sides of the moving groove, first sliding blocks are fixedly mounted on two sides of the moving plate, the two first sliding blocks are connected with the corresponding first chutes in a sliding mode respectively, and the moving plate is limited by the two first sliding blocks.

Preferably, the top of two first sliders is all fixed mounting has reset spring, and two reset spring's top respectively with the top inner wall fixed connection of corresponding first spout, two reset spring play to first slider spacing and the effect that resets.

Preferably, the second sliding grooves are formed in the inner walls of the tops of the two sliding grooves, the second sliding blocks are fixedly mounted at the tops of the two sliding plates and are respectively in sliding connection with the corresponding second sliding grooves, and the two sliding blocks limit the two sliding plates.

Preferably, the number of the second clamping grooves is multiple, the second clamping grooves are distributed on the top of the rotating disc in an annular shape at equal intervals, and the second clamping grooves fix the rotating disc in multiple positions.

Compared with the prior art, the utility model provides a novel zero sequence transformer protective housing possesses following beneficial effect:

1. according to the novel zero sequence transformer protective shell, the L-shaped rod is pulled upwards firstly, the L-shaped rod drives the movable plate to move, the two first sliding blocks compress the two reset springs, the energy is absorbed through the two reset springs, the L-shaped rod is moved out of the second clamping groove, the fixing of the rotary disc is released, then the rotary disc is rotated, the rotary disc drives the rotary rod to rotate, the rotary rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the connecting column to rotate, the fixing of the two fixed columns is released, then the protective shell is pulled, and the disassembly and assembly are completed;

2. after the zero sequence transformer main body is maintained, two fixing grooves in an upper protective shell are clamped with two fixing columns, then a rotating disc is rotated anticlockwise, two sliding plates are clamped into two first clamping grooves, the two fixing columns are fixed, then an L-shaped rod is loosened, the L-shaped rod is clamped into a second clamping groove under the spring resilience action force of two reset springs, the rotating disc is fixed, and installation is completed;

and the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can be quick convenient carry out the dismouting with last protective housing from the protective housing down, made things convenient for the maintenance or the change of zero sequence mutual-inductor main part, labour saving and time saving has satisfied user's needs.

Drawings

Fig. 1 is a schematic view of a novel zero sequence transformer protective casing according to the present invention;

fig. 2 is a schematic structural diagram of a portion a of a novel zero sequence transformer protective casing provided by the present invention;

fig. 3 is the utility model provides a novel zero sequence transformer protective housing's B part schematic structure.

In the figure: the device comprises a lower protective shell 1, an upper protective shell 2, a zero sequence transformer body 3, a fixing groove 4, a fixing column 5, a sliding groove 6, a sliding plate 7, a first clamping groove 8, a connecting groove 9, a rectangular groove 10, a threaded groove 11, a screw rod 12, a connecting column 13, a rotating hole 14, a rotating rod 15, a first bevel gear 16, a second bevel gear 17, a rotating disc 18, a moving groove 19, a moving plate 20, a L-shaped rod 21, a second clamping groove 22, a first sliding groove 23, a first sliding block 24 and a return spring 25.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel zero sequence transformer protective casing comprises a lower protective casing 1 with an opening at the top and an upper protective casing 2 with an opening at the bottom, wherein a zero sequence transformer main body 3 is placed on the inner wall of the bottom of the lower protective casing 1, the top of the zero sequence transformer main body 3 is in sliding contact with the inner wall of the top of the upper casing 2, two fixing slots 4 are respectively formed at two sides of the bottom of the upper protective casing 2, two fixing columns 5 are fixedly installed at the top of the lower protective casing 1, the top ends of the two fixing columns 5 are respectively clamped with the corresponding fixing slots 4, sliding slots 6 are respectively formed on the inner wall of one side of the two fixing slots 4 close to each other, sliding plates 7 are respectively and slidably installed in the two sliding slots 6, first clamping slots 8 are respectively formed at one side of the two fixing columns 5 close to each other, and one ends of, the inner wall of one side, close to each other, of each of the two sliding grooves 6 is provided with a connecting groove 9, the inner wall of one side, close to each other, of each of the two connecting grooves 9 is provided with a same rectangular groove 10, one end, close to each other, of each of the two sliding plates 7 is provided with a threaded groove 11, the internal threads in the two threaded grooves 11 are opposite in rotation direction, screw rods 12 are rotatably mounted in the two connecting grooves 9, one ends, far away from each other, of the two screw rods 12 respectively extend into the corresponding threaded grooves 11 and are in threaded connection with the corresponding threaded grooves 11, one ends, close to each other, of the two screw rods 12 respectively extend into the rectangular groove 10 and are fixedly provided with a same connecting column 13, the top of the upper protective shell 2 is provided with a rotating hole 14, the rotating hole 14 is communicated with the rectangular groove 10, a rotating rod 15 is mounted in, the outer side of the connecting column 13 is fixedly sleeved with a second bevel gear 17, the second bevel gear 17 is meshed with the first bevel gear 16, the top end of the rotating rod 15 extends to the upper part of the upper protective shell 2 and is fixedly provided with a rotating disc 18, and the first bevel gear 16 and the second bevel gear 17 change the rotating direction.

The utility model discloses in, moving groove 19 has been seted up at the top of upper protective housing 2, and slidable mounting has movable plate 20 in moving groove 19, and top that movable plate 20 extends to upper protective housing 2 and fixed mounting has L shape pole 21, and second draw-in groove 22 has been seted up at the top of rolling disc 18, and L shape pole 21 keeps away from movable plate 20's one end and clamps mutually with second draw-in groove 22, and L shape pole 21 clamps mutually with second draw-in groove 22 and fixes rolling disc 18.

The utility model discloses in, all seted up first spout 23 on the both sides inner wall of shifting chute 19, the equal fixed mounting in both sides of movable plate 20 has first slider 24, and two first sliders 24 respectively with 23 sliding connection of corresponding first spout, two first sliders 24 carry on spacingly to movable plate 20.

The utility model discloses in, the equal fixed mounting in top of two first sliders 24 has reset spring 25, two reset spring 25's top respectively with the top inner wall fixed connection of corresponding first spout 23, two reset spring 25 play to the effect spacing and that reset of first slider 24.

The utility model discloses in, all seted up the second spout on the top inner wall of two sliding tray 6, the equal fixed mounting in top of two sliding plates 7 has the second slider, and two second sliders respectively with corresponding second spout sliding connection, two second sliders carry on spacingly to two sliding plates 7.

The utility model discloses in, the quantity of second draw-in groove 22 is a plurality of, and a plurality of second draw-in grooves 22 are the annular equidistance and distribute at the top of rolling disc 18, and a plurality of second draw-in grooves 22 carry out multiposition fixed to rolling disc 18.

In the utility model, when in use, the L-shaped rod 21 is pulled upwards first, the L-shaped rod 21 drives the movable plate 20 to move, the movable plate 20 drives the two first sliders 24 to move, the two first sliders 24 compress the two reset springs 25, the energy is absorbed by the two reset springs 25, the L-shaped rod 21 is moved out of the second clamping groove 22, the fixation of the rotary disc 18 is released, then the rotary disc 18 is rotated, the rotary disc 18 drives the rotary rod 15 to rotate, the rotary rod 15 drives the first bevel gear 16 to rotate, the first bevel gear 16 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the connecting column 13 to rotate, the connecting column 13 drives the two lead screws 12 to rotate, the two lead screws 12 drive the two sliding plates 7 to move through the two threaded grooves 11 with opposite rotating directions, the two sliding plates 7 are moved out of the two first sliders 8, the two sliding plates 7 are limited through the two second sliders, the fixing of the two fixing columns 5 is released, then the upper protective shell 2 is pulled, the dismounting is completed, after the zero-sequence mutual inductor main body 3 is maintained, then the two fixing grooves 4 on the upper protective shell 2 are clamped with the two fixing columns 5, then the rotating disc 18 is rotated anticlockwise, the two sliding plates 7 are clamped into the two first clamping grooves 8, the two fixing columns 5 can be fixed, then the L-shaped rod 21 is loosened, under the spring resilience acting force of the two reset springs 25, the L-shaped rod 21 is clamped into the second clamping groove 22, the rotating disc 18 is fixed, the mounting is completed, the upper protective shell 2 can be quickly and conveniently dismounted from the lower protective shell 1, the maintenance or replacement of the zero-sequence mutual inductor main body 3 is facilitated, time and labor are saved, and the requirements of a user are met.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel zero sequence transformer protective shell comprises a lower protective shell (1) with an opening at the top and an upper protective shell (2) with an opening at the bottom, and is characterized in that a zero sequence transformer main body (3) is placed on the inner wall of the bottom of the lower protective shell (1), the top of the zero sequence transformer main body (3) is in sliding contact with the inner wall of the top of the upper protective shell (2), two fixed grooves (4) are respectively formed in two sides of the bottom of the upper protective shell (2), two fixed columns (5) are fixedly installed at the top of the lower protective shell (1), the top ends of the two fixed columns (5) are respectively clamped with the corresponding fixed grooves (4), sliding grooves (6) are respectively formed in the inner walls of one sides, close to each other, of the two fixed grooves (4), sliding plates (7) are respectively installed in the two sliding grooves (6) in a sliding mode, and first clamping grooves (, one end of each of the two sliding plates (7), which is far away from each other, is respectively clamped with the corresponding first clamping groove (8), the inner wall of one side, which is close to each other, of each of the two sliding grooves (6) is provided with a connecting groove (9), the inner wall of one side, which is close to each other, of each of the two connecting grooves (9) is provided with the same rectangular groove (10), one end, which is close to each other, of each of the two sliding plates (7) is provided with a threaded groove (11), the rotating directions of internal threads in the two threaded grooves (11) are opposite, the two connecting grooves (9) are respectively and rotatably provided with a screw rod (12), one end, which is far away from each other, of the two screw rods (12) respectively extends into the corresponding threaded groove (11) and is in threaded connection with the corresponding threaded groove (11), one end, which is close to each other, of the two screw rods (12) respectively, rotate hole (14) and be linked together with rectangular groove (10), it installs dwang (15) to rotate hole (14) internal rotation, the bottom of dwang (15) extends to rectangular groove (10) in and fixed mounting has first conical gear (16), the fixed cover in the outside of spliced pole (13) is equipped with second conical gear (17), and second conical gear (17) and first conical gear (16) mesh mutually, the top of dwang (15) extends to the top and fixed mounting of upper protective housing (2) has rolling disc (18).

2. The novel zero sequence transformer protective case according to claim 1, wherein a moving groove (19) is formed in the top of the upper protective shell (2), a moving plate (20) is slidably mounted in the moving groove (19), the top end of the moving plate (20) extends to the upper side of the upper protective shell (2) and is fixedly provided with an L-shaped rod (21), a second clamping groove (22) is formed in the top of the rotating disc (18), and one end, away from the moving plate (20), of the L-shaped rod (21) is clamped with the second clamping groove (22).

3. The novel zero sequence transformer protective case according to claim 2, wherein the inner walls of the two sides of the moving slot (19) are respectively provided with a first sliding slot (23), the two sides of the moving plate (20) are respectively fixedly provided with a first sliding block (24), and the two first sliding blocks (24) are respectively connected with the corresponding first sliding slots (23) in a sliding manner.

4. The novel zero sequence transformer protective case according to claim 3, wherein return springs (25) are fixedly mounted on top portions of the two first sliding blocks (24), and top ends of the two return springs (25) are fixedly connected with inner walls of top portions of the corresponding first sliding grooves (23).

5. The novel zero sequence transformer protective case according to claim 1, wherein the inner walls of the tops of the two sliding grooves (6) are respectively provided with a second sliding groove, the tops of the two sliding plates (7) are respectively fixedly provided with a second sliding block, and the two second sliding blocks are respectively connected with the corresponding second sliding grooves in a sliding manner.

6. The novel zero sequence transformer protective casing as claimed in claim 2, wherein the number of the second clamping grooves (22) is plural, and the plural second clamping grooves (22) are distributed on the top of the rotary disk (18) in an annular shape at equal intervals.