CN217281822U - In put cabinet high tension switchgear and overhaul work platform - Google Patents

Abstract

The utility model relates to an in put cabinet high tension switchgear and overhaul work platform. The lifting driving mechanism drives the bracket to synchronously lift relative to the base, the left platform and the right platform are assembled on the base in a left-right direction guiding mode, the bracket is correspondingly assembled on the platforms, and the width adjusting mechanism adjusts the distance between the left platform and the right platform; the left lifting driving mechanism and the right lifting driving mechanism are respectively arranged on the left platform and the right platform; the left and right supporting frames are respectively fixed on the left and right platforms, the left and right supporting frames are respectively provided with a left and right positioning rods, the left and right positioning rods are oppositely arranged and positioned above the bracket, and the positioning rods are used for hanging a high-voltage switch which is lifted to a set height by the bracket. The utility model discloses an in put cabinet high tension switchgear and overhaul operation platform for solve the current problem that the maintenance platform operation degree of difficulty is big and the security is relatively poor.

Description

In put cabinet high tension switchgear and overhaul work platform

Technical Field

The utility model relates to a high tension switch overhauls the field, concretely relates to put cabinet high tension switch in and overhaul work platform.

Background

The centrally installed switchgear is widely applied to the existing medium-voltage 10kV-35kV power system, and the high-voltage switch inside the centrally installed switchgear is the most important equipment of the centrally installed switchgear. Put in cabinet high tension switchgear divide-shut brake stop power transmission in need deliver to put in the cabinet with high tension switchgear, and put in the cabinet in the high tension switchgear business turn over and remove high tension switchgear by the chassis car removal high tension switchgear of four screw fastenings in the bottom, need tear the chassis car down from the high tension switchgear bottom when overhauing high tension switchgear or fault handling. At present the usual way is exactly to set up interim hoist and mount frame and hang to aloft through high tension switchgear both sides lewis hole, tear down the chassis car and overhaul and install the sensor and carry out the characteristic test of high tension switchgear's stroke, for example the utility model patent that the publication number is CN203826828U provides a cubical switchboard circuit breaker maintenance delivery platform, including hydraulic pressure lift platform and hoist and mount frame, adopt hydraulic pressure lift platform earlier with the circuit breaker lifting to setting for the height, recycle hoist and mount frame suspends the circuit breaker aloft to carry out the maintenance of circuit breaker lower part, work efficiency is higher and intensity of labour is lower.

However, there are still some problems: firstly, the high-voltage switch is suspended in the air and is easy to unstably shake, accurate detection data is difficult to obtain, the overhauling difficulty is increased, safety accidents such as bruising and smashing of overhauling operators are easy to happen, and the safety is poor. Secondly, when the high-voltage switch of the middle-placed cabinet with a large or small model is lifted for hoisting, the hoisting hole of the high-voltage switch is difficult to align to the hoisting frame at the upper part, the operation difficulty is high, and the high-voltage switch is easy to have safety accidents such as sliding, falling and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an in put cabinet high tension switchgear and overhaul operation platform for solve the current problem that overhauls the big and security is relatively poor of the platform operation degree of difficulty.

In order to realize the above purpose, the utility model provides an in put cabinet high tension switchgear and overhaul operation platform adopts following technical scheme: the lifting mechanism is characterized by further comprising a left platform, a right platform, a left support frame, a right support frame and a width adjusting mechanism, wherein the left platform and the right platform are arranged at intervals left and right and are assembled on the base in a guiding and moving manner along the left and right direction, the left bracket and the right bracket are assembled on the left platform and the right platform in a guiding and moving manner along the up and down direction respectively, and the width adjusting mechanism is used for adjusting the distance between the left platform and the right platform; the lifting driving mechanism is divided into a left lifting driving mechanism and a right lifting driving mechanism and is respectively arranged on the left platform and the right platform; the left support frame and the right support frame are fixed on the left platform and the right platform respectively, the left support frame and the right support frame vertically extend, a left positioning rod and a right positioning rod are arranged on the left support frame and the right support frame, the left positioning rod and the right positioning rod are arranged oppositely and are located above the left bracket and the right bracket, and the left positioning rod and the right positioning rod are used for hanging and fixing a middle cabinet high-voltage switch lifted to a set height by the left bracket and the right bracket.

The beneficial effects are that: the lifting driving mechanism is arranged on the left platform and the right platform, the width adjusting mechanism is arranged to adjust the distance between the left platform and the right platform, the width of the lifting mechanism is adjusted according to the adaptability of the high-voltage switch in different sizes, the lifting of the high-voltage switches of different models can be stably and balancedly ensured, the difficulty of lifting operation is reduced, the safety of the lifting maintenance process is improved, the positioning rod is adopted to hang the fixed high-voltage switch, and the shaking of the high-voltage switch is reduced when the operation is convenient.

Preferably, the lifting driving mechanism is a lifting screw rod, the lifting screw rod is divided into a left lifting screw rod and a right lifting screw rod, the left lifting screw rod and the right lifting screw rod are respectively installed on the left platform and the right platform, and the left lifting screw rod and the right lifting screw rod are respectively in threaded fit with the left bracket and the right bracket to synchronously drive the left bracket and the right bracket to lift relative to the base.

Further, lift actuating mechanism still includes two-way motor and shaft coupling, two-way motor is connected with the shaft coupling transmission, the left and right sides of shaft coupling is connected with the transfer line, the transfer line is connected with left lift lead screw and right lift lead screw transmission respectively, so that two-way motor synchronous drive left side lift lead screw and right lift lead screw rotate, the transfer line is telescopic pole to make the transfer line still can keep being connected with the transmission of left lift lead screw, right lift lead screw after the interval change between left platform and right platform.

The beneficial effects are that: the bracket is driven to lift synchronously by the bidirectional motor and the coupler, so that the high-voltage switch is prevented from shifting and sliding down during lifting, and the safety of the lifting process is ensured.

Further, be equipped with the locking structure on the transfer line for the flexible action of locking transfer line to keep the interval between left platform and the right platform unchangeable, the side is equipped with buckle structure around left side platform and the right platform, buckle structure can with the cooperation of base joint is in order to realize that left platform and right platform are fixed for the base position.

The beneficial effects are that: set up the locking structure on the transfer line, fix the interval between left platform and the right platform through the flexible action of locking transfer line, cooperate buckle structure to the fixed position effect between base and the platform, guaranteed that the width and the transverse position of bracket after the regulation is accomplished are fixed unchangeably, have guaranteed the security of high-voltage switch lift process.

Preferably, the lifting screw rod is connected with a lifting hand wheel in a transmission manner and used for manually lifting the left bracket and the right bracket.

The beneficial effects are that: realize the bracket through manual regulation and go up and down, adjust convenient more accurate, the high tension switchgear's of being convenient for transportation.

Preferably, width adjustment mechanism includes the mount and adjusts the lead screw, the mount sets up on the base between left side platform and the right side platform, it includes left lead screw and right lead screw to adjust the lead screw, left side lead screw and right lead screw all extend along left right direction, the right-hand member of left side lead screw rotates the assembly on the mount, the left end pass left side platform and with left side platform screw-thread fit, the left end of right lead screw rotates the assembly on the mount, the right-hand member pass right side platform and with right side platform screw-thread fit, the left end of left side lead screw and the right-hand member of right lead screw all transmission are connected with drive arrangement, through drive arrangement drive left lead screw and right lead screw rotate, in order to realize the interval of left side platform and right platform is adjusted.

The beneficial effects are that: the width adjustment of the left platform and the right platform is realized through the left lead screw and the right lead screw, and the operation is convenient.

Preferably, the driving device is an adjusting hand wheel, and the adjusting hand wheel drives the left lead screw and the right lead screw to rotate so as to adjust the distance between the left platform and the right platform.

Preferably, left branch strut and right branch strut all include door type support frame and locating support, door type support frame includes two perpendicular roof beams and a crossbeam, perpendicular roof beam perpendicular to horizontal plane setting, the crossbeam extends along the fore-and-aft direction level, the crossbeam sets up in the upper end of two perpendicular roof beams, and locating support is along the fore-and-aft direction assembly on the crossbeam and perpendicular to crossbeam setting, left side locating lever and right side locating lever set up in the upper end that corresponds locating support.

Preferably, all be equipped with the gasket groove on left branch strut and the right branch strut, but the gasket inslot is equipped with the gasket of left and right pull, after high voltage switch rose to the settlement position, take out the gasket fills up in high voltage switch middle part to guarantee high voltage switch's stability.

The beneficial effects are that: the setting has the gasket groove of pull gasket, utilizes the gasket to carry out the rigidity to high tension switchgear, avoids high tension switchgear to appear rocking, has guaranteed going on smoothly of maintenance process, has improved maintenance efficiency and security.

Preferably, the left positioning rod and the right positioning rod are movably arranged on the left support frame and the right support frame in a penetrating mode along the left-right direction respectively, the left positioning rod and the right positioning rod are fixedly provided with fixing rods, the left support frame and the right support frame are respectively provided with limiting clamping grooves which are mutually locked by the fixing rods, and the fixing rods are matched with the limiting clamping grooves in a locking mode to fix the left positioning rod and the right positioning rod.

The beneficial effects are that: set up dead lever and spacing draw-in groove and carry out the locking to the locating lever, prevent that the locating lever from breaking away from the hole for hoist at high tension switchgear top, avoid high tension switchgear to fall and cause the incident, improved the maintenance security.

Drawings

Fig. 1 is the utility model discloses an in put cabinet high tension switchgear and overhaul operation platform's spatial structure schematic diagram.

In the figure: 1. a base; 201. a left platform; 202. a right platform; 203. a buckle structure; 204. a limiting card; 301. a left lifting screw rod; 302. a right lifting screw rod; 303. a left bracket; 304. a right bracket; 305. a guide bar; 306. a bi-directional motor; 307. a coupling; 308. a transmission rod; 309. an adjustment hole; 310. positioning the bolt; 311. lifting a hand wheel; 312. a support plate; 401. a fixed mount; 402. a left lead screw; 403. a right lead screw; 404. adjusting a hand wheel; 501. a left support frame; 502. a right support frame; 503. a door-shaped support frame; 504. positioning the bracket; 505. a left positioning rod; 506. a right positioning rod; 507. a fixing rod; 508. a limiting clamping groove; 509. a gasket groove; 6. and (4) a roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses a put cabinet high tension switchgear and overhaul operation platform's concrete embodiment: as shown in fig. 1, the high-voltage switch maintenance operation platform of the centrally installed switchgear in the embodiment includes a base 1, and a left platform 201 and a right platform 202 which are assembled on the base 1 in a left-right guiding manner, a width adjusting mechanism is arranged between the left platform 201 and the right platform 202, and is used for adjusting the distance between the left platform 201 and the right platform 202, a lifting driving mechanism which is synchronously lifted is arranged on the left platform 201 and the right platform 202, a left bracket 303 and a right bracket 304 are correspondingly arranged on the lifting driving mechanism, and is used for lifting the centrally installed switchgear high-voltage switch to lift relative to the base 1, four rollers 6 with gravity springs are arranged at the bottom of the base 1, so that the base 1 can freely move when no load exists, and is locked under a set weight, and the movement of the base 1 is avoided.

Specifically, the width adjusting mechanism comprises a fixing frame 401, a left lead screw 402 and a right lead screw 403 which are rotatably assembled on the left side and the right side of the fixing frame 401 respectively, the fixing frame 401 is fixedly arranged on the base 1 between the left platform 201 and the right platform 202, the right end of the left lead screw 402 and the left end of the right lead screw 403 are rotatably assembled on the fixing frame 401, the left end of the left lead screw 402 penetrates through the left platform 201 and is in threaded fit with the left platform 201, the right end of the right lead screw 403 penetrates through the right platform 202 and is in threaded fit with the right platform 202, an adjusting handwheel 404 is further mounted at the left end of the left lead screw 402 and the right end of the right lead screw 403 respectively, the left lead screw 402 and the right lead screw are driven to rotate by manually rotating the adjusting handwheel 404, so that the left platform 201 and the right platform 202 are guided to move on the base 1 along the left-right direction, and the distance between the left platform 201 and the right platform 202 is adjusted. The front side and the rear side of the left platform 201 and the right platform 202 are respectively provided with a limiting card 204 and a buckling structure 203, the limiting card 204 extends downwards to be matched with the base 1 in a blocking manner, so that the left platform 201 and the right platform 202 can move on the base 1 along the left-right direction in a guiding manner, the buckling structure 203 can be fixed with the base 1 in a clamping manner, the left platform 201 and the right platform 202 are prevented from moving relative to the base 1, and the left platform 201 and the right platform 202 are fixed in position.

The lifting driving mechanism comprises a left lifting screw rod 301 fixedly mounted on the left platform 201 and a right lifting screw rod 302 fixedly mounted on the right platform 202, the left lifting screw rod 301 is in threaded fit with the left bracket 303 and used for driving the left bracket 303 to lift, and the right lifting screw rod 302 is in threaded fit with the right bracket 304 and used for driving the right bracket 304 to lift. Two guide rods 305 are respectively arranged on the left platform 201 and the right platform 202, the guide rods 305 are positioned at the front and rear sides of the left lifting screw rod 301 and the right lifting screw rod 302, and the left bracket 303 and the right bracket 304 are assembled on the corresponding guide rods 305 along the vertical direction in a guiding way. The lifting driving mechanism further comprises a bidirectional motor 306 and a coupler 307 which are fixedly arranged on the base 1, the coupler 307 is in transmission connection with the left lifting screw rod 301 and the right lifting screw rod 302 through transmission rods 308 connected to the left side and the right side of the coupler 307 respectively, so that the left lifting screw rod 301 and the right lifting screw rod 302 synchronously rotate, and the bidirectional motor 306 is in transmission connection with the coupler 307, so that the left bracket 303 and the right bracket 304 are driven to synchronously lift.

Wherein, the transfer line 308 is the telescopic link, can carry out the adaptability along with the interval change between left platform 201 and the right platform 202 and stretch out and draw back to remain throughout and be connected with the transmission of left lift lead screw 301, right lift lead screw 302, the extending structure department of transfer line 308 is equipped with regulation hole 309, the internal thread of regulation hole 309 is equipped with positioning bolt 310, screw up positioning bolt 310 can lock the flexible action of transfer line 308, and then guarantee that the interval between left platform 201 and the right platform 202 is unchangeable. The transmission rod 308 is further provided with a lifting hand wheel 311, and the left lifting screw rod 301 and the right lifting screw rod 302 can be driven to rotate by rotating the lifting hand wheel 311.

In addition, a left support frame 501 and a right support frame 502 are respectively and fixedly mounted on the left platform 201 and the right platform 202, and the left support frame 501 and the right support frame 502 both comprise a door-shaped support frame 503 and a positioning bracket 504. The portal bracing frame 503 comprises two vertical beams and a cross beam, the cross beam horizontally extends along the front-back direction and is arranged at the upper ends of the two vertical beams, and the vertical beams are fixed on the supporting plates 312 on the left platform 201 and the right platform 202. The vertical setting of locating support 504 and along the fore-and-aft direction assembly on the crossbeam, be equipped with left locating lever 505 on the locating support 504 of left branch strut 501 and right branch strut 502 respectively, right locating lever 506, left locating lever 505, right locating lever 506 are along the movably dress of wearing respectively of left and right directions on left branch strut 501, right branch strut 502, in order to dodge by left bracket 303, the middle cabinet high tension switchgear that right bracket 304 lifted, and insert the hole for hoist on the high tension switchgear after high tension switchgear is lifted to the settlement height, in order to hang fixed middle cabinet high tension switchgear.

Furthermore, the left positioning rod 505 and the right positioning rod 506 are further provided with fixing rods 507, correspondingly, the positioning support 504 is provided with a limiting clamping groove 508, and after the positioning rods are inserted into hoisting holes in the high-voltage switch, the fixing rods 507 can be clamped and fixed in the limiting clamping groove 508 to ensure that the positioning rods are fixed in position, so that the high-voltage switch is prevented from falling off due to retraction of the positioning rods. Still be equipped with gasket groove 509 on the crossbeam, be equipped with the gasket (not shown in the figure) of pull about can in gasket groove 509, after high voltage switch was lifted to the settlement position, take out the gasket support in gasket groove 509 in the middle part at high voltage switch to make the auxiliary stay high voltage switch keep balance, avoid high voltage switch to rock.

According to the embodiment of the utility model, when the high-voltage switch of the middle-placed cabinet is overhauled, firstly, the transfer trolley is used to push the high-voltage switch to the front of the high-voltage switch overhauling operation platform of the middle-placed cabinet, the positioning bolt 310 and the buckle structure 203 are loosened, the adjusting hand wheel 404 is rotated, and the distance between the left platform 201 and the right platform 202 is adjusted according to the size of the high-voltage switch; starting the bidirectional motor 306 to adjust the left bracket 303 and the right bracket 304 to the same height as the transfer trolley, and also can further finely adjust the height of the brackets by using a lifting hand wheel 311 so as to push the high-voltage switch to the brackets; restart two-way motor 306 or rotate lifting handwheel 311 and lift high voltage switch, make high voltage switch's top hole of hoist and mount parallel and level with the locating lever, correspond left locating lever 505 and right locating lever 506 and insert high voltage switch's top hole of hoist, fix dead lever 507 in spacing draw-in groove 508 again, it is fixed to keep the locating lever, simultaneously take out the gasket in gasket groove 509 and fill up in the high voltage switch middle part, make high voltage switch keep balance, the bracket descends at last, high voltage switch is hung stably and is fixed on high voltage switch examines and repair work platform this moment, the chassis car of high voltage switch bottom is demolishd to the use tools, can overhaul, test work. After the work is finished, the chassis vehicle is installed back to the bottom of the high-voltage switch, the bracket is lifted to be flush with the bottom of the high-voltage switch, the gasket is pulled back, the fixing rod 507 is pulled out from the limiting clamping groove 508, the positioning rod is pulled out from a top hoisting hole of the high-voltage switch, the high-voltage switch is released, the high-voltage switch is lowered to the same height of the transfer vehicle by the bracket, the high-voltage switch is moved away, and the overhaul is finished.

Of course, the utility model discloses an in put cabinet high tension switchgear and overhaul operation platform is not limited to the embodiment that the aforesaid introduced, and this paper still provides other several kinds and is based on the utility model relates to an in put cabinet high tension switchgear overhauls operation platform's embodiment, specifically as follows:

in other embodiments of the high-voltage switch maintenance operation platform of the centrally installed switchgear, the difference from the above embodiments is that: the width adjusting mechanism may not be a screw mechanism, and may be capable of adjusting the distance between the left platform and the right platform, for example, a sliding guide mechanism or a hydraulic driving mechanism, and correspondingly, the power device of the width adjusting mechanism may not adopt an adjusting hand wheel, and may also adopt an adjustable power device such as a motor, a hydraulic press, etc.

In other embodiments of the high-voltage switch maintenance operation platform of the centrally installed switchgear, the difference from the above embodiments is that: the lifting driving mechanism may not be a lifting screw rod, and may be a hydraulic lifting mechanism or a link mechanism, for example, and accordingly, only one power device of the lifting driving mechanism may be used, or other adjustable power devices other than a lifting hand wheel and a bidirectional motor may be used.

In other embodiments of the high-voltage switch maintenance operation platform for the centrally installed switchgear, the difference from the above embodiments is as follows: the lifting driving mechanism can be independently arranged on the left platform and the right platform, synchronous lifting is realized through circuit control, correspondingly, the transmission rod does not need to be arranged as a telescopic rod, and a locking structure is not arranged on the transmission rod.

In other embodiments of the high-voltage switch maintenance operation platform of the centrally installed switchgear, the difference from the above embodiments is that: the left platform and the right platform can be connected with the bracket only by the lifting driving mechanism without arranging guide rods.

In other embodiments of the high-voltage switch maintenance operation platform of the centrally installed switchgear, the difference from the above embodiments is that: the left support frame and the right support frame can not be composed of a door-shaped support frame, a positioning support and other complex structures, for example, the support frame is a vertically arranged support rod, and a positioning rod is arranged on the support rod and used for hanging and fixing the high-voltage switch.

In other embodiments of the high-voltage switch maintenance operation platform of the centrally installed switchgear, the difference from the above embodiments is that: the auxiliary support structure on the support frame can be other structures besides the gasket groove with the drawable gasket, such as a clamping fixing structure or a plug-in fixing structure.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, the scope of the present invention is defined by the appended claims, and all the structural changes equivalent to the content of the description and the attached drawings should be included in the same way.

Claims (10)

1. A maintenance operation platform for a high-voltage switch of a centrally installed switchgear comprises a base (1), a left bracket (303), a right bracket (304) and a lifting driving mechanism, wherein the left bracket (303) and the right bracket (304) are arranged on the base (1) and used for lifting the centrally installed switchgear high-voltage switch, the lifting driving mechanism is used for synchronously driving the left bracket (303) and the right bracket (304) to lift relative to the base (1), it is characterized by also comprising a left platform (201), a right platform (202), a left support frame (501), a right support frame (502) and a width adjusting mechanism, the left platform (201) and the right platform (202) are arranged at left and right intervals and are assembled on the base (1) in a guiding and moving way along the left and right direction, the left bracket (303) and the right bracket (304) are respectively assembled on the left platform (201) and the right platform (202) in a guiding and moving way along the up-down direction, the width adjusting mechanism is used for adjusting the distance between the left platform (201) and the right platform (202); the lifting driving mechanism is divided into a left lifting driving mechanism and a right lifting driving mechanism and is respectively arranged on the left platform (201) and the right platform (202); the left support frame (501) and the right support frame (502) are respectively fixed on the left platform (201) and the right platform (202), the left support frame (501) and the right support frame (502) are vertically extended, a left positioning rod (505) and a right positioning rod (506) are arranged on the left support frame (501) and the right support frame (502), the left positioning rod (505) and the right positioning rod (506) are oppositely arranged and are positioned above the left bracket (303) and the right bracket (304), and the left positioning rod (505) and the right positioning rod (506) are used for hanging and fixing a cabinet high-voltage switch which is arranged in the left bracket (303) and the right bracket (304) and is lifted to a set height.

2. The middle cabinet high-voltage switch maintenance work platform according to claim 1, wherein the lifting driving mechanism is a lifting screw rod, the lifting screw rod is divided into a left lifting screw rod (301) and a right lifting screw rod (302) and is respectively installed on the left platform (201) and the right platform (202), and the left lifting screw rod (301) and the right lifting screw rod (302) are respectively in threaded fit with the left bracket (303) and the right bracket (304) so as to synchronously drive the left bracket (303) and the right bracket (304) to lift relative to the base (1).

3. The high-voltage switch maintenance work platform for the centrally installed switchgear, according to claim 2, wherein the lifting driving mechanism further comprises a bidirectional motor (306) and a coupler (307), the bidirectional motor (306) is in transmission connection with the coupler (307), transmission rods (308) are connected to the left side and the right side of the coupler (307), the transmission rods (308) are in transmission connection with the left lifting screw rod (301) and the right lifting screw rod (302) respectively, so that the bidirectional motor (306) synchronously drives the left lifting screw rod (301) and the right lifting screw rod (302) to rotate, and the transmission rods (308) are telescopic rods, so that the transmission rods (308) can still keep transmission connection with the left lifting screw rod (301) and the right lifting screw rod (302) after the distance between the left platform (201) and the right platform (202) changes.

4. The centrally-mounted switchgear high-voltage switch maintenance operation platform as claimed in claim 3, wherein a locking structure is arranged on the transmission rod (308) and used for locking the telescopic action of the transmission rod (308) so as to keep the distance between the left platform (201) and the right platform (202) unchanged, the front side and the rear side of the left platform (201) and the right platform (202) are provided with a buckling structure (203), and the buckling structure (203) can be in buckling fit with the base (1) so as to fix the positions of the left platform (201) and the right platform (202) relative to the base (1).

5. The center-placed cabinet high-voltage switch maintenance work platform as claimed in claim 2, wherein a lifting hand wheel (311) is connected to the lifting lead screw in a transmission manner and used for manually lifting the left bracket (303) and the right bracket (304).

6. The high-voltage switch maintenance work platform of the centrally installed switchgear cabinet as claimed in claim 1, wherein the width adjustment mechanism comprises a fixed frame (401) and an adjustment screw, the fixed frame (401) is disposed on the base (1) between the left platform (201) and the right platform (202), the adjustment screw comprises a left screw (402) and a right screw (403), the left screw (402) and the right screw (403) both extend in the left-right direction, the right end of the left screw (402) is rotatably assembled on the fixed frame (401), the left end of the right screw passes through the left platform (201) and is in threaded fit with the left platform (201), the left end of the right screw (402) is rotatably assembled on the fixed frame (401), the right end of the left screw passes through the right platform (202) and is in threaded fit with the right platform (202), and the left end of the left screw (402) and the right end of the right screw (403) are both in transmission connection with a driving device, the driving device drives the left lead screw (402) and the right lead screw (403) to rotate so as to realize the distance adjustment of the left platform (201) and the right platform (202).

7. The middle cabinet high-voltage switch maintenance work platform according to claim 6, wherein the driving device is an adjusting hand wheel (404), and the left lead screw (402) and the right lead screw (403) are driven to rotate by manually rotating the adjusting hand wheel (404), so that the distance between the left platform (201) and the right platform (202) is adjusted.

8. The middle cabinet high-voltage switch maintenance work platform according to claim 1, wherein each of the left support frame (501) and the right support frame (502) comprises a door-shaped support frame (503) and a positioning bracket (504), the door-shaped support frame (503) comprises two vertical beams and a cross beam, the vertical beams are arranged perpendicular to a horizontal plane, the cross beam horizontally extends along a front-back direction, the cross beam is arranged at the upper ends of the two vertical beams, the positioning bracket (504) is assembled on the cross beam in a front-back direction in a guiding manner and is arranged perpendicular to the cross beam, and the left positioning rod (505) and the right positioning rod (506) are arranged at the upper ends of the corresponding positioning brackets (504).

9. The middle cabinet high-voltage switch maintenance work platform according to claim 1, wherein gasket grooves (509) are formed in the left support frame (501) and the right support frame (502), gaskets capable of being drawn and pulled leftwards and rightwards are arranged in the gasket grooves (509), and when the high-voltage switch rises to a set position, the gaskets are drawn out to be padded in the middle of the high-voltage switch, so that stability of the high-voltage switch is guaranteed.

10. The middle cabinet high-voltage switch maintenance work platform according to claim 1, wherein the left positioning rod (505) and the right positioning rod (506) are movably arranged on the left support frame (501) and the right support frame (502) in a left-right direction in a penetrating manner, the left positioning rod (505) and the right positioning rod (506) are both fixedly provided with a fixing rod (507), the left support frame (501) and the right support frame (502) are both provided with a limiting clamping groove (508) which is mutually locked with the fixing rod (507), and the fixing rod (507) is in locking fit with the limiting clamping groove (508) to realize locking and fixing of the left positioning rod (505) and the right positioning rod (506).

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