Grabbing device and intelligent transfer trolley

Abstract

The utility model provides a gripping device and an intelligent transfer trolley, which are used for gripping an isolation circuit breaker handcart or a mutual inductor handcart of a high-voltage switch cabinet to the intelligent transfer trolley, the gripping device comprises a moving beam and a pair of first gripping mechanisms, the pair of first gripping mechanisms are arranged on the moving beam at intervals and can be close to or far away from each other, and the first gripping mechanisms are arranged on the moving beam at intervals. Each first grabbing mechanism comprises a swing rod capable of swinging longitudinally and a first hook plate arranged at the tail end of the swing rod, and the first hook plate is provided with a first clamping groove used for hooking a preset clamping part on an isolation circuit breaker handcart or a mutual inductor handcart. According to the device, the isolation circuit breaker handcart or the mutual inductor handcart can be grabbed and unlocked from the electrical cabinet, finally, the isolation circuit breaker handcart or the mutual inductor handcart can be transferred and maintained, operation is convenient, time and labor are saved, and adjustment is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric power electrical equipment, and particularly relates to an auxiliary equipment for electric power electrical equipment maintenance operation, and more particularly to a grabbing device and an intelligent transfer trolley comprising the grabbing device. BACKGROUND

[0002] It is well known that the safety and reliability of industrial electrical power equipment operation and maintenance are the primary considerations of the power supply department.

[0003] Specifically, in the industrial electrical power equipment industry, a power system such as 10kV is usually adopted, and the indoor alternating current draw-out type switchgear is a complete power distribution device of a single busbar and a single busbar sectional system. This type of switchgear can be used in power plants, small and medium-sized generator power transmission, industrial and enterprise power distribution, and power reception, power transmission and large high-voltage motor starting of secondary power transformation stations of the power system, to achieve the purpose of controlling, protecting and detecting power equipment, and plays an important role in power system operation and power equipment protection.

[0004] The transfer trolley is a necessary operation and maintenance tool in the distribution room of the substation. Specifically, the intelligent transfer trolley is mainly used for the transfer and operation and maintenance of the isolation circuit breaker handcart and the current transformer handcart in the electric power electrical equipment, so as to improve the operation and maintenance efficiency of the substation and reduce the labor intensity.

[0005] A key functional component on the intelligent transfer trolley is the grabbing device, which realizes the locking and grabbing of the isolation circuit breaker handcart or the transformer handcart of the high-voltage switch cabinet into the rack of the intelligent transfer trolley, and then realizes the purpose of taking out the isolation circuit breaker handcart or the transformer handcart from the high-voltage switch cabinet.

[0006] The existing technology realizes the above-mentioned grabbing mode by relying on human hands, which is difficult to operate and has high labor intensity. UTILITY MODEL CONTENTS

[0007] The utility model aims to solve the above-mentioned problems of the prior art, and provides a grabbing device with simple structure, convenient and reliable unlocking and locking, and a corresponding intelligent transfer trolley.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0009] The utility model provides a kind of grabbing device, for the isolation circuit breaker handcart or mutual inductor handcart of high voltage switchgear is grabbed to intelligent transfer car, including moving beam and a pair of first grabbing mechanism, the pair of first grabbing mechanism is spaced apart and set on moving beam and can be mutually close or far, each the first grabbing mechanism includes the swing bar of longitudinal swing and the first hook plate of being set in the swing bar end, first clamping groove for hooking the first hook plate on the preset clamping portion of isolation circuit breaker handcart or mutual inductor handcart is opened, wherein, when two first hook plates hook the clamping portion on isolation circuit breaker handcart and are driven mutually close, the unlocking between isolation circuit breaker handcart and high voltage switchgear is realized to make isolation circuit breaker handcart can be separated from cabinet.

[0010] Preferably, the corresponding swing rods of the pair of first grabbing mechanisms are arranged to swing synchronously. Further preferably, the grabbing device further comprises a lead screw arranged in parallel with the moving beam, a base fixed to the moving beam, and a cantilever arranged at one end of the base; each swing rod is sleeved on the lead screw; the top of the cantilever is rotationally connected to one end of a first electric push rod.

[0011] Preferably, the grabbing device further comprises a synchronization rod, which passes through the middle part of each swing rod; the other end of the first electric push rod is rotationally connected to the synchronization rod.

[0012] Further preferably, a threaded sleeve is sleeved on the lead screw, the threaded sleeve is axially connected to the swing rod; the two ends of the lead screw are provided with driving motors connected thereto.

[0013] Preferably, a sliding rail is arranged on the moving beam, a sliding block is arranged on the sliding rail, and the sliding block is fixed to the threaded sleeve through a connecting rod.

[0014] Preferably, the grabbing device further comprises a second grabbing mechanism for grabbing the insulating plate of the high voltage switchgear, the second grabbing mechanism is arranged between the two first grabbing mechanisms and on the moving beam.

[0015] More preferably, the second grabbing mechanism comprises a second hook plate and a second electric push rod, the second hook plate is rotationally arranged on the other end of the base opposite to the end where the cantilever is arranged, a second clamping groove for clamping the preset clamping portion on the insulating plate is formed in the second hook plate, and the second electric push rod is pivotally connected to the top end of the cantilever and the second hook plate.

[0016] Preferably, sliding guide blocks are connected to the two ends of the moving beam for mounting on an external track to realize the overall movement of the grabbing device.

[0017] The utility model provides a kind of intelligent transfer car, including, rack, lifting device, track assembly, push-pull assembly and above-mentioned grabbing device;The lifting device is located on rack, the track assembly is located on the lifting device and is driven to lift by the lifting device, the push-pull assembly is located on track assembly, the grabbing device is arranged on the push-pull assembly and is driven to move on the track assembly by the push-pull assembly.

[0018] The utility model discloses the beneficial effect brought by technical scheme is: in the utility model, for the isolation circuit breaker handcart or mutual inductor handcart of high voltage switch cabinet is grabbed to intelligent transfer car, because grabbing device includes moving beam and a pair of first grabbing mechanism, two first grabbing mechanism interval setting is on moving beam, and can be driven by external mechanism and mutually close or far away.When two first grabbing mechanism mutually close, realize the unlocking action between isolation circuit breaker handcart and high voltage switch equipment cabinet body.Each first grabbing mechanism includes the swingable swing rod of longitudinal and the first hook plate of setting in swing rod terminal, first hook plate is set with the first card slot for hooking the preset joint part on isolation circuit breaker handcart or mutual inductor handcart.When swing rod is longitudinally swung to certain position, such as just be located in the corresponding position of the preset joint part on isolation circuit breaker handcart or mutual inductor handcart, the two swing rods of two first grabbing mechanism move towards, to be inserted in corresponding joint part in synchronization then, two swing rods swing again and make corresponding first card slot and corresponding joint part engage, to realize the locking of isolation circuit breaker handcart or mutual inductor handcart.Swing rod again swings to certain position in opposite direction, can release joint part.Finally realize the extraction and maintenance of circuit breaker or mutual inductor, and it is convenient to operate, save time and labour. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be briefly introduced as follows.

[0020] Figure 1a It is the perspective view of the grabbing device provided by an embodiment of the utility model;

[0021] Figure 1b It is the perspective view of the intelligent transfer car containing above-mentioned grabbing device;

[0022] Figure 2a It is Figure 1b It is the structure enlarged view of A part of intelligent transfer car shown in the figure;

[0023] Figure 2b It is Figure 1b It is the structure enlarged view of B part of intelligent transfer car shown in the figure;

[0024] Figure 2c It is Figure 1bAn enlarged view of the structure of the C part of the intelligent transfer trolley shown;

[0025] Figure 2d For Figure 1b An enlarged view of the structure of the D part of the intelligent transfer trolley shown;

[0026] Figure 3 A perspective view of the intelligent transfer trolley from another angle according to an embodiment of the present application;

[0027] Figure 4a For Figure 3 An enlarged view of the structure of the A part of the intelligent transfer trolley shown;

[0028] Figure 4b For Figure 3 An enlarged view of the structure of the B part of the intelligent transfer trolley shown;

[0029] Figure 4c For Figure 3 An enlarged view of the structure of the C part of the intelligent transfer trolley shown, showing the detailed structure of the grabbing device;

[0030] Figure 5 A perspective view of the intelligent transfer trolley from yet another angle according to an embodiment of the present application;

[0031] Figure 6 For Figure 5 An enlarged view of the structure of the A part of the intelligent transfer trolley shown, showing the detailed structure of the grabbing device. DETAILED DESCRIPTION

[0032] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although certain embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be interpreted as being limited to the embodiments set forth herein, but rather these embodiments are provided so as to more completely and thoroughly understand the present application. It is understood that the drawings and embodiments of the present application are for illustrative purposes only and are not intended to limit the scope of the present application.

[0033] It is understood that each of the steps recited in the method embodiments of the present application can be executed in different orders and / or in parallel. In addition, the method embodiments can include additional steps and / or omit the execution of the steps shown. The scope of the present application is not limited in this respect.

[0034] As used herein, the term "includes" and its variants are open, inclusive terms. The term "connect" is not limited to direct connection, but also includes connection through an intermediary component (element). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions will be given in the following description.

[0035] It should be noted that the "first", "second", and the like concepts mentioned in the utility model are only used to distinguish the devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor to limit the order or interdependence of the functions performed by these devices, modules or units.

[0036] First of all, the intelligent transfer trolley of the utility model is suitable for interfacing with high-voltage switch cabinets to realize the transfer of large-size or heavy devices such as isolation circuit breakers (i.e. hand carts), insulating plates and mutual inductor hand carts in high-voltage switch cabinets. It should be noted that a locking structure is arranged between the isolation circuit breaker hand cart and the cabinet body of the high-voltage switch cabinet, which mainly includes a lock rod that is retractably arranged in the isolation circuit breaker hand cart and can be inserted into the cabinet body to resist the isolation circuit breaker mechanism box, and a pull ring that is arranged at the front end of the isolation circuit breaker hand cart and can retract the lock rod into the isolation circuit breaker hand cart.

[0037] In the technical scheme provided by the utility model, the grabbing device includes a moving beam and a pair of first grabbing mechanisms, the two first grabbing mechanisms are arranged on the moving beam with a spacing, and can approach or move away from each other under the driving of an external mechanism. Each first grabbing mechanism includes a swing rod that can swing longitudinally and a first hook plate arranged at the end of the swing rod, and the first hook plate is provided with a first clamping groove for hooking a pre-set clamping part on the isolation circuit breaker hand cart or the mutual inductor hand cart.

[0038] When the swing rod swings longitudinally to a certain position, such as the corresponding position of the pre-set clamping part on the isolation circuit breaker hand cart or the mutual inductor hand cart, the two swing rods of the two first grabbing mechanisms are synchronously inserted into the corresponding clamping part (such as the pull ring at the front end of the isolation circuit breaker), and then the two swing rods swing again to make the corresponding first clamping groove engage with the corresponding clamping part, so that the first clamping groove of the first grabbing mechanism hooks the isolation circuit breaker hand cart or the mutual inductor hand cart.

[0039] When it is necessary to realize the unlocking between the hand cart and the electrical cabinet, it is only necessary to make the swing rods approach each other to pull the two pull rings to approach each other to make the lock rod retract into the hand cart, so that the hand cart can be pulled out of the cabinet body to realize unlocking, and finally realize the transfer and maintenance of the circuit breaker hand cart or the mutual inductor hand cart under the action of other devices of the transfer trolley, such as the push-pull device, which is convenient to operate, saves time and effort, accurate positioning and easy to adjust.

[0040] The grabbing device is arranged on the intelligent transfer trolley, and for the convenience of description, the intelligent transfer trolley is described first, and then the grabbing device is described.

[0041] Referring to FIGS. 1-6, according to one embodiment of the present application, a grabbing device 30 is provided, which comprises a moving beam 32 fixed on a horizontal conveying belt 74, and two first grabbing mechanisms 36 and one second grabbing mechanism 34 arranged on the moving beam 32.

[0042] The second grabbing mechanism 34 is used for grabbing the insulating plate on the electrical switch cabinet, so as to move the thick insulating plate into the intelligent transfer trolley 100, which comprises a base 342 fixed on the moving beam 32, a cantilever 344 arranged at one end of the base 342, a second hook plate 346 rotatably arranged at the other end of the base 342, and a second electric push rod 348 pivotally connected with the top end of the cantilever 344 and the second hook plate 346; a second clamping groove 3462 is formed in the second hook plate 346.

[0043] Here, it needs to be explained that the second grabbing mechanism 34 has the above structure, when it is needed to grab and drag the insulating plate into the intelligent transfer trolley 100, first, the intelligent transfer trolley 100 is moved to the side of the electrical switch cabinet, so that the locking assembly 40 is hooked in the corresponding lock hole of the electrical switch cabinet, which ensures that the intelligent transfer trolley 100 and the electrical switch cabinet are temporarily fixed to each other, so as to ensure the safety of operation. Then, when the external driving signal acts on the second electric push rod 348, it pushes the second hook plate 346 to turn down so that the second clamping groove 3462 is hooked with the corresponding part of the insulating plate, realizing the grabbing action of the insulating plate. When it is needed to separate the second clamping groove 3462 from the corresponding part of the insulating plate, under the action of the external driving signal, the second electric push rod 348 is retracted to the original position, and the second hook plate 346 is turned up to realize the separation action of the insulating plate.

[0044] In one embodiment, two first grabbing mechanisms 36 are distributed on the left and right sides of the second grabbing mechanism 34, which are used for grabbing the circuit breaker trolley or the current transformer trolley, so as to move the circuit breaker trolley or the current transformer trolley into the intelligent transfer trolley 100. Each first grabbing mechanism 36 comprises a swing rod 366 rotatably sleeved on a lead screw 362, and a first hook plate 368 arranged at the end of the swing rod 366, wherein a first clamping groove 3682 is formed in the first hook plate 368; the lead screw 362 is arranged across the two ends of the moving beam 32 and is arranged in parallel with the moving beam 32; a synchronous rod 369 is arranged at the middle part of the swing rod 366, the top of the cantilever 344 is rotatably connected with one end of a first electric push rod 367, and the other end of the first electric push rod 367 is rotatably connected with the synchronous rod 369.

[0045] According to the above structure, when the isolating circuit breaker trolley or the current transformer trolley needs to be grabbed and dragged into the intelligent transfer trolley 100, first, the intelligent transfer trolley 100 is moved to the side of the electrical switch cabinet, so that the locking assembly 40 is hooked in the corresponding lock hole of the electrical switch cabinet, thus ensuring that the intelligent transfer trolley 100 and the electrical switch cabinet are temporarily fixed to each other, so as to ensure the safety of operation. Next, when the external driving signal acts on the first electric push rod 367, it pushes the synchronous rod 369 to generate a positional offset, because the synchronous rod 369 passes through the swing rod 366, it causes the swing rod 366 to swing around the lead screw 362, so that the first hook plate 368 is flipped to make the first clamping groove 3682 hook the corresponding part of the circuit breaker trolley or the current transformer trolley, and then continue to move under the action of the external driving signal, the moving beam 32 moves, thereby taking it off the electrical switch cabinet.

[0046] Preferably, a threaded sleeve 364 is sleeved on the lead screw 362, the threaded sleeve 364 is axially connected with the swing rod 366, and drive motors 361 connected with both ends of the lead screw 362 are arranged. When the drive motor 361 operates, it drives the lead screw 362 to rotate, because the lead screw 362 is arranged across both ends of the slide rail 38 and cannot move axially by itself, so the lead screw 362 only has a rotating action and no axial movement, and the threaded sleeve 364 is connected with the lead screw 362 in a threaded manner, so as to cause the threaded sleeve 364 to move axially and synchronously drive the two swing rods 366 to move axially along the lead screw 362. At this time, when the two swing rods 366 of the two first grabbing mechanisms 36 approach each other due to the relative movement between the lead screw 326 and the threaded sleeve 364, the corresponding two second clamping grooves 3682 also approach each other, thereby achieving the unlocking between the circuit breaker trolley and the electrical cabinet.

[0047] Preferably, sliding guide blocks 200 are connected to both ends of the moving beam 32, which are used to be installed on the external track to realize the overall movement of the grabbing device. Here, the sliding guide blocks 200 can adopt various types of structures, such as dovetail groove structure, inverted T-shaped structure, etc., and the present application does not limit this. After the sliding guide blocks 200 are arranged, the whole grabbing device can slide with the external track, such as the track arranged on the rack, thereby realizing the forward and backward movement of the grabbing device along the track.

[0048] Further preferably, the moving beam 32 is provided with a sliding rail 38, the sliding rail 38 is provided with a sliding block 365, the sliding block 365 is fixed with the sliding sleeve 364 through a connecting rod 363. When the swing rod 366 moves axially, in order to ensure the moving precision and stability, the above-mentioned sliding rail and sliding block cooperation mode is adopted. Specifically, since the sliding between the sliding block 365 and the sliding sleeve 364 is precise sliding, and the sliding block 365 and the sliding sleeve 364 are fixedly connected, so as to make the circumferential movement of the sliding sleeve 364 very smooth, and the swing rod 366 connected with the sliding sleeve 364 also moves smoothly, thereby improving the stability and reliability of the operation.

[0049] The utility model discloses a kind of intelligent transfer trolley 100, it includes rack 10, lifting device 20, track assembly 60, push-pull assembly 70, above-mentioned grabbing device 30 and be located at the locking assembly 40 of the end of the extension end 642.

[0050] The rack 10 includes a base 12, vertical columns 14 longitudinally arranged from the four corners of the base 12, and a pair of longitudinal beams 18 and a pair of transverse beams 16 connecting the adjacent two vertical columns 14 at their top ends, the pair of longitudinal beams 18 are arranged in parallel, the pair of transverse beams 16 are arranged in parallel, and each longitudinal beam 18 is arranged perpendicular to the adjacent transverse beam 16.

[0051] The lifting device 20 includes a motor 24 mounted on one of the transverse beams 16, a transmission shaft 26 arranged between the two vertical columns 14 at the ends of the one of the transverse beams 16 and driven to rotate by the motor 24, a longitudinal transmission belt 268 provided at the two ends of the transmission shaft 26 and driven to rotate along the height direction of the corresponding vertical column 14 by the transmission shaft 26, and a fixed frame 28 fixed on the longitudinal transmission belt 268 and capable of ascending and descending along the height direction of the corresponding vertical column 14.

[0052] The track assembly 60 includes a track mounting bracket 62 fixed on the corresponding fixed frame 28 and a track 64 arranged between the two track mounting brackets 62, one end of the track 64 has an extension end 642 extending out of the rack 10.

[0053] The push-pull assembly 70 includes a push-pull motor 72 fixed on one of the track mounting brackets 62 and a horizontal conveyor belt 74 driven to rotate along the length direction of the track 64 by the push-pull motor 72.

[0054] In the above embodiment, the base 12 of the frame 10 can be formed by connecting a plurality of profiles, such as four profiles, with suitable lengths, such as aluminum alloy profiles or stainless steel profiles. Considering that the entire intelligent transfer trolley 100 is required to transfer a heavy current transformer trolley or a circuit breaker trolley in an electrical switch cabinet, it is required to have a certain load capacity, and therefore the base 12 is required to have sufficient structural strength, and therefore it is preferred to use steel, such as stainless steel, to form the base 12. The plurality of profiles can be fixed to each other by suitable means, such as riveting, threaded connection or welding. In another embodiment, the frame 10 adopts a square tube integral welded structure, which ensures the strength of the vehicle body and meets the bearing requirements.

[0055] Preferably, in one embodiment, the one of the cross beams 16 is provided with a motor mounting plate 22, and the motor 24 is fixedly arranged on the motor mounting plate 22. Here, since the cross-sectional area of the cross beam 16 is much smaller than that of the motor 24, directly mounting the motor 24 on the cross beam 16 may result in unsuccessful installation due to limited installation area, or even if it can be installed, the connection strength after installation is not enough, which is easy to cause the motor 24 to produce position deviation during operation, and thus cannot accurately transmit power to the transmission shaft 26. After increasing the motor mounting plate 22, it is equivalent to increasing the contact area during installation of the motor 24, so that the installation of the motor 24 can be more firm and stable, and finally the power can be accurately transmitted to the transmission shaft 26.

[0056] In another embodiment, the motor 24 has a horizontal drive shaft 242, and the horizontal drive shaft 242 is provided with a drive gear 244; correspondingly, the transmission shaft 26 is provided with a driven gear 262 engaged with the drive gear 244. Through the engagement of the two gears, the power output by the motor 24 is transmitted to the transmission shaft 26, so that the transmission shaft 26 rotates by itself.

[0057] Preferably, the transmission shaft 26 is provided with an upper transmission wheel 264 near the corresponding stand 14, and a lower transmission wheel 266 is arranged near the base 12 at the bottom of the corresponding stand 14, and the longitudinal transmission belt 268 is wound between the corresponding upper transmission wheel 264 and the lower transmission wheel 266. When the transmission shaft 26 rotates, it drives the upper transmission wheel 264 to rotate, and then drives the longitudinal transmission belt 268 to make longitudinal rotary motion.

[0058] In one embodiment, the push-pull motor 72 is provided with a first transmission wheel 722, and the rail mounting frame 62 on which the push-pull motor 72 is not arranged is provided with a support 726, and the support 726 is provided with a second transmission wheel 724, and the horizontal conveying belt 74 is wound between the first transmission wheel 722 and the second transmission wheel 724.

[0059] In the utility model, since the grabbing device comprises the moving beam and a pair of first grabbing mechanisms, two first grabbing mechanisms are arranged on the moving beam at intervals and can be driven to approach or move away from each other. Each first grabbing mechanism comprises a swing rod swingable longitudinally and a first hook plate arranged at the end of the swing rod, and the first hook plate is provided with a first clamping groove for hooking a preset clamping part (such as a locking assembly on the isolating circuit breaker) on the isolating circuit breaker trolley or the mutual inductor trolley. When the swing rod swings longitudinally to a certain position, such as the position corresponding to the preset clamping part on the isolating circuit breaker trolley or the mutual inductor trolley, the two swing rods of the two first grabbing mechanisms move in the same direction, thereby synchronously extending into the corresponding clamping part, and then the two swing rods swing again to make the corresponding first clamping groove engage with the corresponding clamping part, thereby realizing the locking of the isolating circuit breaker trolley or the mutual inductor trolley. When the swing rod swings again to a certain position in the opposite direction, the clamping part can be released. When the two first grabbing mechanisms hook the locking assembly on the isolating circuit breaker trolley and approach each other, the unlocking action between the isolating circuit breaker trolley and the high-voltage switch equipment cabinet body is realized. Finally, the isolating circuit breaker trolley or the mutual inductor trolley can be pulled out and maintained, and the operation is convenient, time-saving and labor-saving.

[0060] The above description is merely preferred embodiments of the utility model and a description of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the utility model is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the above technical features or equivalent features in any combination without departing from the above utility model concept. For example, the above features are replaced with the technical features with similar functions in the utility model (but not limited to) to form the technical solutions.

[0061] Although the present subject matter has been described in terms of specific structural features and / or methodological acts, it can be appreciated that the subject matter defined in the appended claims is not restricted to the specific features or acts described. Rather, the specific features and acts are disclosed as illustrative forms of implementing the claims.

Claims

1. A grabbing device for grabbing an isolated circuit breaker trolley or a transformer trolley of a high-voltage switchgear onto an intelligent transfer trolley, characterized in that The mobile beam and a pair of first gripping mechanisms are spaced apart on the mobile beam and can approach or move away from each other, each of the first gripping mechanisms comprises a longitudinally swingable swing rod and a first hook plate arranged at the end of the swing rod, the first hook plate is provided with a first clamping groove for hooking a pre-set clamping part on an isolating circuit breaker trolley or a mutual inductor trolley, when the two first hook plates hook the clamping part on the isolating circuit breaker trolley and are driven to approach each other, the isolating circuit breaker trolley is unlocked from the high-voltage switch cabinet, and the isolating circuit breaker trolley can be moved out of the cabinet.

2. The gripping device according to claim 1, characterized in that The corresponding swing rods of the pair of first gripping mechanisms are arranged to swing synchronously.

3. The gripping device according to claim 2, characterized in that A lead screw is arranged in parallel with the mobile beam, a base is fixed to the mobile beam, and a cantilever is arranged at one end of the base; each swing rod is sleeved on the lead screw; the top of the cantilever is rotationally connected to one end of a first electric push rod.

4. The gripping device according to claim 3, characterized in that A synchronous rod is arranged to pass through the middle part of each swing rod; the other end of the first electric push rod is rotationally connected to the synchronous rod.

5. The gripping device according to claim 4, characterized in that A threaded sleeve is sleeved on the lead screw, the threaded sleeve is axially connected to the swing rod; the two ends of the lead screw are provided with driving motors connected thereto.

6. The gripping device according to claim 5, characterized in that A slide rail is arranged on the mobile beam, a slide block is arranged on the slide rail, and the slide block is fixed to the threaded sleeve through a connecting rod.

7. The gripping device of claim 4, wherein A second gripping mechanism for gripping an insulating plate of a high-voltage switch cabinet is arranged between the two first gripping mechanisms and on the mobile beam.

8. The gripping device according to claim 7, characterized in that The second gripping mechanism comprises a second hook plate and a second electric push rod, the second hook plate is rotationally arranged on the other end of the base opposite to the end where the cantilever is arranged, a second clamping groove for clamping a pre-set clamping part on the insulating plate is formed in the second hook plate, and the second electric push rod is pivotally connected to the top end of the cantilever and the second hook plate.

9. The gripping device of claim 1, wherein, Sliding guide blocks are connected to the two ends of the mobile beam for installation on an external track to realize overall movement of the gripping device.

10. An intelligent transfer vehicle characterized by, The device comprises a rack, a lifting device, a track assembly, a push-pull assembly, and the gripping device of any one of claims 1-9; the lifting device is arranged on the rack, the track assembly is arranged on the lifting device and is driven to lift by the lifting device, the push-pull assembly is arranged on the track assembly, and the gripping device is arranged on the push-pull assembly and is driven to move on the track assembly by the push-pull assembly.

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