CN216289511U - Installation apparatus and installation system for current transformer and centrally installed switchgear - Google Patents

Abstract

The utility model relates to a mounting apparatus, installation system and put cabinet in for current transformer, mounting apparatus wherein includes chassis and first gyro wheel, and the chassis is used for bearing and fixed current transformer, and first gyro wheel sets up on the relative both sides of chassis for with set up the first guide rail cooperation on putting the cabinet relative two inside walls in order to make mounting apparatus can pass in and out with sliding and put the cabinet in, and bear on first guide rail. Through above-mentioned technical scheme, can conveniently adapt the current transformer of different models as required, the commonality is higher to current transformer's installation no longer need reserve the mounting hole on the cabinet body, even also can carry out the production of the cabinet body when the model is not complete definite, has shortened production cycle.

Description

Installation apparatus and installation system for current transformer and centrally installed switchgear

Technical Field

The disclosure relates to the technical field of assembly of electronic components, in particular to an installation apparatus, an installation system and a middle-placed cabinet for a current transformer.

Background

The traditional installation mode of the current transformer of the centrally installed switchgear is as follows: according to the mutual-inductor model, reserve the installation hole site on the cabinet body in advance, when adopting artifical installation, often squat at the cable chamber by alone, lift up current transformer to the relevant position, another person carries out the bolt installation of counterpointing. This type of mounting has the following problems: because the mounting hole needs to be reserved on the cabinet body, when the mutual inductor with different models is replaced in the using process, the cabinet body needs to be changed, and the universality is poor. In addition, because the cabinet inner space is narrow and small, the mutual-inductor mounting height is lower, brings inconvenience for operating personnel to there is the mutual-inductor to drop, damages the cabinet body and injures personnel scheduling risk by a crashing object even.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, the present disclosure provides a mounting apparatus for a current transformer, a centrally installed switchgear, and a mounting system for a current transformer.

According to a first aspect of embodiments of the present disclosure, there is provided a mounting fixture for a current transformer, including:

the chassis is used for bearing and fixing the current transformer;

the first rollers are arranged on two opposite sides of the chassis and are used for being matched with first guide rails arranged on two opposite inner side walls of the middle cabinet, so that the installation device can slidably enter and exit the middle cabinet and is borne on the first guide rails.

Optionally, the mounting apparatus further comprises a latch mechanism having latches disposed on opposite sides of the chassis and having a first position pushed outwardly and a second position retracted inwardly, wherein,

in the first position, the locking piece is in inserted fit with a locking hole arranged on the first guide rail;

in the second position, the locking member is disengaged from the locking aperture.

Optionally, the locking mechanism further comprises an operating member and an elastic member, the operating member is connected with the locking member to drive the locking member, and the elastic member can provide elastic force for maintaining the locking member at the first position.

Optionally, the operating member is configured as an operating handle, and the lock member, the operating member, and the elastic member are provided at an end of the mounting fixture away from the entering direction.

According to a second aspect of the embodiments of the present disclosure, there is provided a centrally installed switchgear for installing the installation apparatus of any one of the above items, wherein two opposite inner side walls of the centrally installed switchgear are provided with first guide rails extending along a sliding direction of the installation apparatus.

Optionally, the first guide rail is provided with a locking hole and a stopping portion, respectively, the locking hole is disposed at one end far away from the entering direction, and the stopping portion is disposed at one end facing the entering direction.

Optionally, a cabinet body of the middle cabinet is provided with an alignment hole for matching with an alignment piece of the tooling vehicle so as to position the tooling vehicle.

According to a second aspect of the embodiments of the present disclosure, there is provided an installation system for a current transformer, including a current transformer, an installation apparatus according to any one of the above, a middle cabinet according to any one of the above, and a tooling vehicle, where the tooling vehicle includes a tray for carrying the installation apparatus, a translation mechanism for driving the tray to move horizontally, and a lifting mechanism for driving the tray to move up and down, and the translation mechanism is disposed on the lifting mechanism.

Optionally, translation mechanism passes through the mounting panel setting elevating system's is last, wherein, the bottom of tray is provided with the second gyro wheel, be provided with on the mounting panel be used for with second gyro wheel complex second guide rail, the second guide rail is followed installation utensil's slip direction extends the setting.

Optionally, still be provided with the bar mounting hole on the mounting panel, the bar mounting hole with the second guide rail has the same extending direction, the tray through wear to locate the threaded fastener of bar mounting hole with the mounting panel is connected.

Optionally, the lifting mechanism includes a scissor structure and a transmission structure, the scissor structure includes a first movable arm and a second movable arm hinged in a cross shape, and the transmission structure is configured to drive the scissor structure to change an included angle between the first movable arm and the second movable arm.

Optionally, the scissor structure further includes an upper support rod and a lower support rod which are arranged at an interval along the vertical direction, the upper support rod and the lower support rod are arranged along the sliding direction of the installation device in an extending manner, one end of the first movable arm is connected with the upper support rod in a sliding manner through a first slider, the second end of the first movable arm is fixed, the first end of the second movable arm is connected with the lower support rod in a sliding manner through a second slider, the second end of the second movable arm is fixed, and the transmission structure is used for driving the first slider to move.

Optionally, scissor structure includes two sets of that the both sides interval along the slip direction set up, transmission structure sets up two between scissor structure, transmission structure includes actuating lever and driving medium, the actuating lever is followed the slip direction of installation utensil extends the setting, and is provided with the external screw thread at least partially, the driving medium cover is established on the actuating lever and have be used for with external screw thread complex internal thread, the tip of actuating lever is provided with and is used for the restriction actuating lever axial motion's baffle, the both sides of driving medium extend be formed with be used for with go up the linking arm that the bracing piece is connected, first slider with the linking arm is connected.

Optionally, the tooling vehicle further includes a carriage, the translation mechanism and the lifting mechanism are disposed on the carriage, a running wheel with a brake pad is disposed at the bottom of the carriage, and an alignment member is disposed on one side of the carriage facing the middle cabinet and used for being matched with an alignment hole disposed on the middle cabinet to position the tooling vehicle.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: compared with the prior art that the current transformer is directly fixed on the middle-placed cabinet, the installation device is used as an installation medium in the method, and the first roller arranged on the chassis is in sliding fit with the first guide rail arranged on the middle-placed cabinet, so that the current transformer can conveniently enter and exit the middle-placed cabinet. The installation apparatus can conveniently adapt to the current transformers of different models as required, the universality is higher, the installation of the current transformers does not need to reserve installation holes on the cabinet body any more, the production of the cabinet body can be carried out even if the models are not completely determined, and the production period is shortened.

Because mutual current sensor need not personnel business turn over cabinet body at the in-process of installation, when using manpower sparingly, can also avoid current transformer to fall and injure personnel by a crashing object, the security is better, in addition, change the upgrading at follow-up product, when changing the current transformer of different models, can only change current transformer and installation utensil on the whole, and need not to improve cabinet body structure trompil, reduce work load.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a top view of a mounting fixture provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a front view of a mounting fixture provided by an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic view of a first guide rail provided by an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic view of a tooling vehicle provided by an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic view of a lift mechanism provided in an exemplary embodiment of the present disclosure;

fig. 6 is a schematic view of a mounting system provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

100-mounting means, 110-chassis, 120-first roller, 130-locking member, 140-operating member, 150-elastic member, 200-current transformer, 300-middle cabinet, 310-first guide rail, 311-locking hole, 312-stopping portion, 400-tooling cart, 410-tray, 411-second roller, 412-threaded fastener, 420-mounting plate, 421-second guide rail, 422-strip-shaped mounting hole, 431-first movable arm, 432-second movable arm, 433-upper support rod, 434-lower support rod, 435-first slider, 436-second slider, 437-driving rod, 438-transmission member, 4381-connecting arm, 439-baffle, 440-carriage, 441-running wheel, 442-aligning member.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Unless otherwise specified, use of the terms of orientation such as "upper, lower, left, right" are defined according to the directions indicated in the respective drawings, and "inner" and "outer" refer to the inner and outer of the contours of the respective parts themselves. Furthermore, the terms "first," "second," and the like, as used herein, are intended to distinguish one element from another, and not necessarily to distinguish between order and importance.

As shown in fig. 1 to 6, the present disclosure provides a mounting fixture for a current transformer, including a chassis 110 and first rollers 120 disposed on opposite sides of the chassis 110, wherein the chassis 110 is used for carrying and fixing the current transformer 200, and the first rollers 120 are used for cooperating with first guide rails 310 disposed on two opposite inner sidewalls of a centrally installed cabinet 300, so that the mounting fixture 100 can slidably enter and exit the centrally installed cabinet 300 and be carried on the first guide rails 310.

The current transformer 200 is supported and fixed on the chassis 110 by presetting mounting holes according to different types of current transformers 200 on the chassis 110 and mounting and fixing the current transformer 200. It is also understood that in the present disclosure, the current transformer 200 is indirectly fixed in the center-mounted cabinet 300 by the mounting fixture 100.

The first rollers 120 are disposed on opposite sides of the chassis 110, that is, on both sides (left and right sides in fig. 1) of a plane in which the chassis 110 is located in the sliding direction. The number of the first rollers 120 may be set according to actual needs, for example, in the embodiment shown in fig. 1, two first rollers 120 are provided at intervals along the sliding direction (up-down direction in the figure) on the same side of the chassis 110. It should be understood that in the first subject, the current transformer 200 and the center-mounted cabinet 300 are described as using environmental features, respectively, that is, the installation fixture 100 may not include the current transformer 200 and the center-mounted cabinet 300.

In addition, as an alternative modification, guide rails may be disposed on both sides of the chassis 110, and correspondingly, rollers that are slidably fitted are disposed on both inner sidewalls of the centrally installed cabinet 300. After the installation apparatus 100 is slidably moved into the center-placed cabinet 300, the first rail 310 may serve as a bearing structure to install the installation apparatus 100, and thus the current transformer 200, in the center-placed cabinet 300.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: compared with the prior art that the current transformer 200 is directly fixed on the centrally installed switchgear 300, that is, in a manner that the centrally installed switchgear 300 is preset with a mounting hole to fix the current transformer 200, the present disclosure uses the mounting fixture 100 as a mounting medium, and facilitates the current transformer 200 to move into and out of the centrally installed switchgear 300 through the sliding fit of the first roller 120 arranged on the chassis 110 and the first guide rail 310 arranged on the centrally installed switchgear 300. The mounting apparatus 100 can be conveniently adapted to the current transformers 200 of different models as required, the universality is higher, mounting holes are no longer required to be reserved on the cabinet body in the mounting process of the current transformers 200, the cabinet body can be produced even if the models are not completely determined, and the production period is shortened.

Because the current transformer 200 need not personnel business turn over cabinet body at the in-process of installation, when using manpower sparingly, can also avoid current transformer 200 to fall and injure personnel by a crashing object, the security is better, in addition, upgrade is changed at follow-up product, when changing the current transformer 200 of different models, can only change current transformer 200 and installation utensil 100 on the whole, and need not to improve cabinet body structure trompil, reduces work load.

According to one embodiment of the present disclosure, the mounting fixture 100 may further include a latching mechanism having a latch 130, the latch 130 being disposed on opposite sides of the chassis 110. In the embodiment shown in fig. 1-3, the locking member 130 is configured as a rod body, and both the extension and movement directions thereof are along a sliding direction (i.e., the left-right direction in fig. 1) perpendicular to the mounting apparatus 100. The locking member 130 has a first position pushed outward and a second position retracted inward, wherein in the first position, the locking member 130 is inserted into and engaged with a locking hole 311 provided on the first guide rail 310; in the second position, the locking member 130 is disengaged from the locking aperture 311.

When the installation apparatus 100 slides to a predetermined position, the locking member 130 is pushed outward to a first position, and at this time, the locking member 130 and the first guide rail 310 disposed on the centrally installed cabinet 300 are in a locking relationship, so that the position of the installation apparatus 100 is fixed, and the installation is completed. Conversely, when the installation apparatus 100 needs to be removed, the locking members 130 are retracted inward to the second position and disengaged from the locking holes 311, so that the installation apparatus 100 can be further slid out of the centrally installed cabinet 300.

In order to prevent the mounting apparatus 100 from exceeding the stroke due to inertia when entering the middle-placed cabinet 300 and causing damage to the cabinet body, a stopping structure may be further provided, for example, the first guide rail 310 is respectively provided with a locking hole 311 and a stopping portion 312, and the stopping portion 312 may be simply configured as a stopping bolt or a resin block, etc., wherein the locking hole 311 is provided at one end (pointing to the outside of the cabinet body) away from the entering direction, and the stopping portion 312 is provided at one end (pointing to the inside of the cabinet body) facing the entering direction.

The locking mechanism may further include an operating member 140 and an elastic member 150, the operating member 140 being coupled to the locking member 130 to be able to drive the locking member 130, the elastic member 150 being able to provide an elastic force for maintaining the locking member 130 in the first position. During the process of pushing the installation apparatus 100 into the centrally installed cabinet 300, the operator can always control the operation member 140 to enable the locking member 130 to be in the second position of inward retraction, and at this time, the operator can overcome the elastic restoring force of the elastic member 150. When the mounting apparatus 100 reaches the predetermined position, the operating member 140 is released, and at this time, since a force is no longer applied to the elastic member 150, under the action of the elastic restoring force, the elastic member 150 drives the locking member 130 to be pushed out to the first position, and the locking member 130 is always maintained at the first position, so that the locking member 130 is prevented from being disengaged from the locking hole 311 during the operation.

Alternatively, operating member 140 may be configured as an operating handle to facilitate the operator pushing or pulling mounting apparatus 100. And the locking member 130, the operation member 140 and the elastic member 150 are provided at one end (upper direction in fig. 1) of the mounting fixture 100 away from the entering direction, and this design can be fitted with the above-mentioned first guide rail 310 having the locking hole 311 and the stopper 312, so that the mounting fixture 100 can be locked after being completely pushed into the center-built cabinet 300.

A second aspect of the present disclosure is to provide a centrally installed switchgear 300 for installing the installation apparatus 100 of any of the above. The two opposing inner sidewalls of the centrally installed cabinet 300 are provided with first guide rails 310, and the first guide rails 310 extend in the sliding direction of the installation device 100. Further, the first guide rail 310 may be provided with a locking hole 311 and a stopping portion 312, respectively, the locking hole 311 being disposed at one end away from the entering direction, and the stopping portion 312 being disposed at one end toward the entering direction. In addition, the cabinet body of the middle cabinet 300 is provided with a positioning hole for matching with the positioning piece 442 of the tooling cart 400, so as to position the tooling cart 400.

The third aspect of the present disclosure further provides a mounting system for a current transformer, as shown in fig. 6, the mounting system includes a current transformer 200, a mounting fixture 100 according to any of the above embodiments, a middle cabinet 300 according to any of the above embodiments, and a tooling cart 400, where the tooling cart 400 includes a tray 410 for carrying the mounting fixture 100, a translation mechanism for driving the tray 410 to move horizontally, and an elevating mechanism for driving the tray 410 to move up and down, and the translation mechanism is disposed on the elevating mechanism. In brief, the purpose of the tooling cart 400 is to transport the mounting fixture 100, on which the current transformer 200 is mounted, to a predetermined position including a predetermined height direction and a horizontal direction, that is, at the predetermined position, the operator only needs to simply push the mounting fixture 100 forward.

According to an embodiment of the present disclosure, as shown in fig. 4, the translation mechanism is disposed on the lifting mechanism through a mounting plate 420, wherein the bottom of the tray 410 is provided with a second roller 411, the mounting plate 420 is provided with a second guide rail 421 for cooperating with the second roller 411, and the second guide rail 421 extends along the sliding direction of the mounting apparatus 100. The second rail 421 may be configured as a groove, and the second roller 411 is inserted into the second rail 421 to prevent the second roller from being removed. Of course, other types of translation mechanisms, such as a gear rack or a worm gear, etc., can also be applied to the present disclosure through simple arrangements, and are not described herein again.

Further, a strip-shaped mounting hole 422 may be further disposed on the mounting plate 420, the strip-shaped mounting hole 422 and the second rail 421 have the same extending direction, and the tray 410 is connected to the mounting plate 420 through a threaded fastener 412 penetrating through the strip-shaped mounting hole 422. When the tray 410 is used, the movement stroke of the tray 410 in the sliding direction is realized under the condition that the threaded fasteners 412 are kept in a loose state, and after the tray is slid to a preset position, the threaded fasteners 412 are screwed down to fix the position of the tray 410.

The lifting mechanism comprises a scissor structure comprising a first moveable arm 431 and a second moveable arm 432 hinged in a cross-like manner, and a transmission structure for driving the scissor structure to change the angle between the first moveable arm 431 and the second moveable arm 432. The tray 410 is raised or lowered by changing the angle between the first movable arm 431 and the second movable arm 432.

According to an embodiment of the present disclosure, referring to fig. 4 and 5, the scissor structure further includes an upper support rod 433 and a lower support rod 434 spaced apart in the up-down direction, the upper support rod 433 and the lower support rod 434 are disposed to extend along the sliding direction of the mounting fixture 100, one end of the first movable arm 431 is slidably connected to the upper support rod 433 through a first slider 435, a second end of the first movable arm 431 is fixed (where fixed means only being able to rotate but not being able to slide along the axial direction of the support rod), a first end of the second movable arm 432 is slidably connected to the lower support rod 434 through a second slider 436, and a second end of the second movable arm 432 is fixed (same as above), and the transmission structure is used to drive the first slider 435 to move, that is, the transmission mechanism drives the first slider 435, and then changes the included angle between the first movable arm 431 and the second movable arm 432.

The scissor structures comprise two groups which are arranged at intervals along two sides of the sliding direction, and the transmission structure is arranged between the two scissor structures. As an embodiment for realizing the transmission structure, as shown in fig. 5, the transmission structure includes a driving rod 437 and a transmission member 438, the driving rod 437 extends along the sliding direction of the installation tool 100 (i.e. has the same extending direction as the supporting rod), and is at least partially provided with an external thread, the transmission member 438 is sleeved on the driving rod 437 and has an internal thread for matching with the external thread, a baffle 439 for limiting the axial movement of the driving rod 437 is provided at an end of the driving rod 437, connecting arms 4381 for connecting with the upper supporting rod 433 are formed by extending two sides of the transmission member 438, and the first slider 435 is connected with the connecting arms 4381.

In particular, the transmission structure may be configured as a lead screw nut structure. The rotation of the driving lever 437 can be controlled by providing a rocker lever. The purpose of the stop 439 is to limit the driving rod 437 to rotate only without axial displacement, so that the driving rod 437 can rotate only, and the transmission member 438 sleeved on the driving rod 437 cannot rotate due to the connection with the upper supporting rods 433 on both sides, so that the transmission member 438 can move in the axial direction along with the rotation of the driving rod 437, and then the first slider 435 connected to the transmission member 438 is driven to move. At this time, the first slider 435 is a master slider for changing an angle between the first movable arm 431 and the second movable arm 432, and the second slider 436 is a slave slider. In addition, the transmission member 438 and the connecting arm 4381 can be integrally formed to improve the strength of the connection.

In some other embodiments of the present disclosure, as shown in fig. 4, the tooling cart 400 may further include a carriage 440, and the translation mechanism and the lifting mechanism are disposed on the carriage 440. The bottom of the carriage 440 is provided with a traveling wheel 441 with a brake pad, and after the tooling vehicle 400 arrives, the brake pad can be directly stepped by feet, and the position fixation can be realized through the friction force between the brake pad and the wheel. In addition, a side of the car 440 facing the center-set cabinet 300 is provided with an aligning member 442, and alternatively, the aligning member 442 may be configured as a semi-cone, and the aligning member 442 is configured to be engaged with an aligning hole provided on the center-set cabinet 300 to position the position of the truck 400.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (14)

1. A mounting fixture for a current transformer, comprising:

a chassis (110) for carrying and securing the current transformer (200);

first rollers (120) disposed on opposite sides of the chassis (110) for cooperating with first guide rails (310) disposed on opposite inner sidewalls of a centrally disposed cabinet (300) to enable the mounting apparatus (100) to slidably move in and out of the centrally disposed cabinet (300) and to be carried on the first guide rails (310).

2. The mounting apparatus for a current transformer according to claim 1, further comprising a latch mechanism having latches (130), the latches (130) being disposed on opposite sides of the chassis (110) and having a first position pushed outwardly and a second position retracted inwardly, wherein,

in the first position, the locking piece (130) is in plug fit with a locking hole (311) arranged on the first guide rail (310);

in the second position, the lock member (130) is disengaged from the lock hole (311).

3. The mounting apparatus for a current transformer according to claim 2, wherein the locking mechanism further comprises an operating member (140) and an elastic member (150), the operating member (140) is connected with the locking member (130) to be able to drive the locking member (130), and the elastic member (150) is able to provide an elastic force for maintaining the locking member (130) in the first position.

4. The mounting fixture for a current transformer according to claim 3, wherein the operating member (140) is configured as an operating handle, and the lock member (130), the operating member (140), and the elastic member (150) are provided at an end of the mounting fixture (100) away from an entering direction.

5. A centrally installed cabinet for installing the installation apparatus (100) of any one of claims 1 to 4, wherein the two opposite inner side walls of the centrally installed cabinet (300) are provided with first guide rails (310), and the first guide rails (310) extend along the sliding direction of the installation apparatus (100).

6. The centrally installed cabinet according to claim 5, wherein the first guide rail (310) is provided with a locking hole (311) and a stopping portion (312), respectively, the locking hole (311) is disposed at one end far away from the entering direction, and the stopping portion (312) is disposed at one end facing the entering direction.

7. The center cabinet according to claim 5, wherein the cabinet body of the center cabinet (300) is provided with an alignment hole for matching with an alignment piece (442) of a tooling vehicle (400) so as to position the tooling vehicle (400).

8. A mounting system for a current transformer, comprising a current transformer (200), a mounting fixture (100) according to any one of claims 1 to 4, a centrally installed cabinet (300) according to any one of claims 5 to 7, and a tooling cart (400), wherein the tooling cart (400) comprises a tray (410) for carrying the mounting fixture (100), a translation mechanism for driving the tray (410) to move horizontally, and an elevating mechanism for driving the tray (410) to move up and down, and the translation mechanism is arranged on the elevating mechanism.

9. The mounting system for a current transformer according to claim 8, wherein the translating mechanism is disposed on the lifting mechanism through a mounting plate (420), wherein a second roller (411) is disposed at a bottom of the tray (410), a second guide rail (421) for cooperating with the second roller (411) is disposed on the mounting plate (420), and the second guide rail (421) is disposed to extend along a sliding direction of the mounting apparatus (100).

10. The mounting system for the current transformer according to claim 9, wherein a strip-shaped mounting hole (422) is further provided on the mounting plate (420), the strip-shaped mounting hole (422) has the same extension direction as the second rail (421), and the tray (410) is connected with the mounting plate (420) through a threaded fastener (412) penetrating through the strip-shaped mounting hole (422).

11. The mounting system for a current transformer according to claim 8, wherein the lifting mechanism comprises a scissor structure comprising a first moveable arm (431) and a second moveable arm (432) articulated in a cross-like manner, and a transmission structure for actuating the scissor structure to change an angle between the first moveable arm (431) and the second moveable arm (432).

12. The mounting system for the current transformer according to claim 11, wherein the scissor structure further comprises an upper support rod (433) and a lower support rod (434) spaced apart in an up-down direction, the upper support rod (433) and the lower support rod (434) are disposed to extend in a sliding direction of the mounting fixture (100), one end of the first movable arm (431) is slidably connected to the upper support rod (433) through a first slider (435), a second end of the first movable arm (431) is fixed, a first end of the second movable arm (432) is slidably connected to the lower support rod (434) through a second slider (436), a second end of the second movable arm (432) is fixed, and the transmission structure is used for driving the first slider (435) to move.

13. The mounting system for a current transformer according to claim 12, the scissor-type structures comprise two groups which are arranged at intervals along the two sides of the sliding direction, the transmission structure is arranged between the two scissor-type structures, the transmission structure comprises a driving rod (437) and a transmission piece (438), the driving rod (437) extends along the sliding direction of the installation tool (100), and is at least partially provided with an external thread, the transmission piece (438) is sleeved on the driving rod (437) and is provided with an internal thread matched with the external thread, the end of the driving rod (437) is provided with a baffle plate (439) used for limiting the axial movement of the driving rod (437), two sides of the transmission piece (438) extend to form connecting arms (4381) used for being connected with the upper supporting rods (433), and the first sliding block (435) is connected with the connecting arms (4381).

14. The mounting system for the current transformer according to claim 8, wherein the tooling vehicle (400) further comprises a carriage (440), the translation mechanism and the lifting mechanism are arranged on the carriage (440), a running wheel (441) with a brake pad is arranged at the bottom of the carriage (440), and an aligning member (442) is arranged at one side of the carriage (440) facing the centrally-mounted cabinet (300), and the aligning member (442) is used for matching with an aligning hole arranged on the centrally-mounted cabinet (300) to position the tooling vehicle (400).

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