Portable split type grounding handcart and use method thereof

Abstract

The invention relates to the technical field of power transformation operation and maintenance, and discloses a portable split type grounding handcart and a using method thereof.The portable split type grounding handcart comprises a grounding vehicle and a chassis vehicle, the grounding vehicle comprises a shell, a depth adjusting mechanism, a height adjusting mechanism and a transverse width adjusting mechanism, and the grounding vehicle is placed at the top of the chassis vehicle; the depth adjusting mechanism, the height adjusting mechanism and the transverse width adjusting mechanism are all arranged in the shell, the depth adjusting mechanism is fixedly arranged at the bottom of the inner wall of the shell, a supporting plate is arranged at the top of the depth adjusting mechanism, and the height adjusting mechanism is fixedly arranged at the top of the supporting plate. According to the portable split type grounding handcart and the using method thereof, a centrally installed switchgear grounding wire and a common grounding wire can be managed together, the grounding handcart is prevented from hurting a human body in the using process, the grounding wire device can be operated by one person, switching operation is standardized, when a line grounding knife switch is damaged, the grounding wire can be installed from a wire outlet contact, and the grounding handcart is convenient to use. The grounding device is simple in structure, low in cost, convenient to use and high in safety.

Description

Technical Field

[0001] The invention relates to the technical field of substation operation and maintenance, and in particular to a light split grounding trolley and a use method thereof. Background Art

[0002] At present, indoor 10kV (20kV) center-mounted switchgear has been widely used in substations of power systems. Since the center-mounted switchgear is a complete set of closed type, ordinary wiring cannot be used in the switchgear. Except for the special grounding knife switch on the outgoing line side, such as the busbar, the main transformer low-voltage side (10kV, 20kV) switchgear, etc., when grounding is required for maintenance, the grounding trolley provided by the manufacturer is used.

[0003] Although the application of grounding trolleys solves the grounding problem of maintenance equipment, there are also big problems in actual use. For example, the weight is too heavy, and the operator cannot lift the grounding trolley onto the trolley frame. The operator can only wait for the maintenance personnel to arrive at the site to help. This violates the operating specification that one person operates and one person supervises, and also delays the operation time. At the same time, it may cause harm to personnel during use. Second, grounding trolleys are not universal. There is only one type of grounding trolley for each model, and multiple configurations take up a lot of space. When using it, you need to find the corresponding one.

[0004] At the same time, after searching, the patent document with the announcement number CN211701218U discloses a grounding trolley and a trolley-type switch cabinet. The grounding trolley has a frame, a contact arm system and a chassis, wherein the contact arm system is fixed to the frame, the frame and the contact arm system are located on the chassis, and the chassis can drive the frame and the contact arm system to move. As an exemplary illustration, the frame is fixed to the chassis, and by rotating the screw of the chassis, the frame and the contact arm system can be driven to move to the test position, the working position and other positions. The contact arm system generally includes a row of upper contact arm assemblies or a row of lower contact arm assemblies. As shown in the figure, the grounding trolley has an upper contact arm assembly, and the grounding trolley has a lower contact arm assembly. For example, the structure of each upper contact arm assembly is the same, for example, each includes a support frame, a contact arm and a plum blossom contact. Similarly, the structure of each lower contact arm assembly is the same, for example, each includes a support frame, a contact arm and a plum blossom contact. One end of the support frame is fixed to the frame, and the other end is connected to the contact arm, and the plum blossom contact is located at the end of the contact arm away from the support frame. Each contact arm of the upper contact arm assembly can be electrically connected to an upper connecting rod. Similarly, each contact arm of the lower contact arm assembly can be electrically connected to a lower connecting rod.

[0005] However, there are still many problems with the above-mentioned grounding trolleys: The grounding trolley is arranged in an integrated manner and cannot be conveniently operated in separate parts. Meanwhile, the operating parts such as contacts inside the grounding trolley are fixed in the longitudinal and lateral positions, and the operating position cannot be adjusted according to switch cabinets of different specifications, which reduces the convenience of operating the grounding trolley. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a lightweight split grounding trolley and a method of using the same, which can manage the grounding wire of the central cabinet together with the ordinary grounding wire to prevent the grounding trolley from causing harm to people during use. The grounding wire device can be operated by one person to standardize the switching operation. When the line grounding knife switch is damaged, the grounding wire can be installed from the outgoing line contact. The grounding device has the advantages of simple structure, low cost, easy use and high safety. It solves the problem that the grounding trolley is set as an integral part and cannot be conveniently split for operation. At the same time, the operating parts such as the contacts inside the grounding trolley are fixed in the longitudinal and lateral positions, and the operating position cannot be adjusted according to switch cabinets of different specifications, which reduces the problem of the convenience of operation of the grounding trolley.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a light split grounding trolley, comprising a grounding trolley and a chassis trolley, the grounding trolley comprising a shell, a depth adjustment mechanism, a height adjustment mechanism and a lateral width adjustment mechanism, the grounding trolley is placed on the top of the chassis trolley, the grounding trolley and the chassis trolley are separately arranged, and the grounding trolley can be supported and moved while the operator can conveniently carry the grounding trolley to the maintenance cabinet for operation, thereby improving the convenience of operation of the grounding trolley, and the lower ends of both sides of the shell are fixed with carrying buckles, and through the arrangement of the carrying buckles, the grounding trolley can be conveniently carried and matched with the maintenance cabinet, thereby improving the convenience of operation of the grounding trolley; The depth adjustment mechanism, the height adjustment mechanism and the lateral width adjustment mechanism are all arranged in the shell, the depth adjustment mechanism is fixedly arranged at the bottom of the inner wall of the shell, a support plate is arranged on the top of the depth adjustment mechanism, and the height adjustment mechanism is fixedly arranged on the top of the support plate. By setting the support plate, the height adjustment mechanism and the depth adjustment mechanism can be used in coordination; Two symmetrically arranged reinforcing plates are provided at the upper end of the outer side wall of the height adjustment mechanism, and mounting plates are fixedly provided on the top of the two reinforcing plates. The lateral width adjustment mechanism is fixedly provided on the top of the mounting plates. With the assistance of the reinforcing plates and the mounting plates, the height adjustment mechanism, the depth adjustment mechanism and the lateral width adjustment mechanism can be combined and arranged, so that the grounding trolley can be operated and used in an integrated manner; The interior of the lateral width adjustment mechanism is provided with three arranged conductive rods, the rod walls of the plurality of conductive rods and located above the mounting plate are fixed with grounding joints, and the ends of the conductive rods away from the housing are sleeved with contacts; A quick-release positioning mechanism for limiting the position of the contact is provided between the contact and the end of the conductive rod. The contact can be quickly disassembled and installed from the conductive rod, so that the contact can be conveniently replaced according to maintenance requirements during on-site maintenance.

[0008] Preferably, the depth adjustment mechanism includes a depth adjustment screw and a slider, two symmetrically arranged side plates are fixedly provided at the bottom of the inner wall of the shell, a bottom plate is fixedly provided between the two side plates, the rotation of the depth adjustment screw is arranged between the two side plates, the slider is threadedly sleeved on the outside of the depth adjustment screw, the support plate is fixedly provided on the top of the slider, the end of the depth adjustment screw passes through the side plate and is fixedly provided with a crank, the crank can drive the depth adjustment screw to rotate stably, and the slider can drive the support plate to move stably when the depth adjustment screw is driven, thereby completing the adjustment of the depth position of the contact.

[0009] Preferably, two symmetrically arranged first slide rails are fixed between the two side plates, a first slide rail block is provided on the outer sliding sleeve of the first slide rail, a side block is fixed on the top of the first slide rail block, and the side block is fixedly connected to the slider. The cooperation of the first slide rail and the second slide rail block can enable the slider to perform stable lateral movement under the drive of the depth adjustment screw, and the support of the side block can minimize the lateral tilting of the slider during the sliding process to ensure smooth movement.

[0010] Preferably, the height adjustment mechanism includes a support plate, which is fixedly arranged on the top of the support plate, a support frame is fixedly arranged on the top of the support plate, a baffle is fixedly arranged at the opening of the support frame, the mounting plate is slidably sleeved on the outer side of the baffle, a height adjustment screw is rotatably penetrated through the inner wall of the support frame, a movable plate is threadedly sleeved on the rod wall of the height adjustment screw, both of the reinforcing plates are fixedly connected to the movable plate, and the height adjustment screw can adjust the height position of the mounting plate by driving the movable plate to move longitudinally, and adjust the operating height of the contact with the help of the mounting plate.

[0011] Preferably, two symmetrically arranged sliding grooves are provided on one side of the movable plate close to the baffle plate, and the side portion of the baffle plate is slidably inserted into the sliding grooves. Through the arrangement of the sliding grooves and the baffle plate, only the internal components of the support frame can be covered, and the longitudinal movement of the mounting plate is not hindered.

[0012] Preferably, the lateral width adjustment mechanism includes a top plate, which is fixedly arranged on the top of the mounting plate, a first support block is fixedly arranged on the middle end of the top of the top plate, the conductive rod in the middle is fixedly arranged and passed through the interior of the first support block, second slide rails are fixedly arranged on both ends of the top of the top plate, a second slide rail block is provided on the outer sliding sleeve of the second slide rail, a second support block is fixedly arranged on the top of the second slide rail block, the conductive rods on both sides are respectively fixedly arranged and passed through the interiors of the two second support blocks, and the positions of the conductive rods on both sides can be adjusted laterally through the sliding cooperation of the first slide rail blocks and the second slide rails on both sides, so as to complete the spacing adjustment between the three conductive rods, so as to accurately match them with the internal components of the inspection cabinet.

[0013] Preferably, the chassis vehicle comprises two symmetrically arranged support shafts, which are rotatably inserted into both sides of the interior of the chassis vehicle respectively, and both ends of the shaft walls of the two support shafts are fixedly sleeved with walking wheels, and a walking frame is fixedly provided on the back side of the chassis vehicle. Before the grounding trolley is used, the walking wheels are in contact with the ground. At this time, under the rotation support of the support shafts, the walking wheels can provide convenient and stable mobile support for the grounding trolley through the chassis vehicle, thereby improving the overall operational convenience of the grounding trolley.

[0014] Preferably, the quick-release positioning mechanism includes a positioning block, a positioning hole is provided on the side of the contact, a groove is provided on the rod wall of the conductive rod, a spring is fixedly provided on the bottom of the inner wall of the groove, the positioning block is located in the groove and fixedly connected to the spring, the positioning block is a wedge-shaped block, the positioning block is inserted into the positioning hole, and when the contact is replaced, the positioning block is quickly plugged into the positioning hole to complete the fixation, and at the same time, because the positioning block is a wedge-shaped block, when the contact is sleeved on the outside of the conductive rod, the positioning block can be quickly squeezed through the outer inclined surface of the positioning block, thereby improving the convenience of contact replacement.

[0015] Preferably, a limit screw is threaded through the back side of the support frame, an adjustment handle is provided on the rear end fixing sleeve of the limit screw, and a scale is fixedly provided on the outer wall of the support frame. The setting of the limit screw can limit the moving height of the movable plate, and the scale can accurately control the moving height of the contact when the contact moves in height.

[0016] A method for using a light split grounding trolley includes any of the light split grounding trolleys described above, and the specific steps are as follows: S1: Move the grounding vehicle to the side of the switch cabinet by the chassis vehicle, and then move the grounding vehicle into the switch cabinet, and check whether the contacts need to be replaced according to the operation requirements; S2: When the contact needs to be replaced, the positioning block can be pressed first, so that the positioning block squeezes the spring and enters the groove, and then the contact can be removed from the conductive rod and a new contact can be put on the conductive rod again; S3: Then the position of the contact can be adjusted according to the position of the internal components of the maintenance cabinet. First, the height adjustment mechanism is adjusted. The height adjustment screw can be rotated. At this time, the movable plate can move longitudinally. The movable plate drives the mounting plate to move longitudinally under the premise of being fixedly connected with the reinforcement plate, so that the mounting plate moves longitudinally under the sliding cooperation with the baffle plate, and the height position of the contact is adjusted; Then the depth adjustment mechanism drives the multiple contacts to move longitudinally. First, the crank is rotated to drive the depth adjustment screw to rotate. At this time, the slider moves to complete the depth position adjustment of the contacts. Then, the distance between the multiple contacts is adjusted by adjusting the lateral width adjustment mechanism, and the positions of the conductive rods on both sides are adjusted under the sliding cooperation of the second slide rail and the second slide rail block, so as to facilitate the precise matching of the contacts with the maintenance components inside the maintenance cabinet; S4: Finally, the depth adjustment mechanism is used to extend the contacts into the inspection cabinet for electrical testing. If there is electricity, the operation is terminated. If there is no electricity, the three-phase grounding wire can be hung.

[0017] Compared with the prior art, the present invention provides a light split grounding trolley and a method of using the same, which has the following beneficial effects: 1. The light split grounding trolley and the use method thereof can manage the center cabinet grounding wire together with the common grounding wire through the provided chassis trolley, grounding trolley, depth adjustment mechanism, height adjustment mechanism, lateral width adjustment mechanism, conductive rod, grounding joint and contact, so as to prevent the grounding trolley from causing harm to people during use. The grounding wire device can be operated by one person, so that the switching operation is standardized. When the line grounding knife switch is damaged, the grounding wire can be installed from the outgoing line contact. The grounding device has the advantages of simple structure, low cost, convenient use and high safety.

[0018] 2. The light split grounding trolley and the method of using the same, by providing a chassis, a grounding trolley, a support shaft and running wheels, the chassis and the grounding trolley are separately arranged, so that the grounding trolley is lightweight and convenient for operators to carry and use. At the same time, with the assistance of multiple running wheels, the grounding trolley can be conveniently moved as a whole, further improving the convenience of using the grounding trolley.

[0019] 3. The light split grounding trolley and the method of using the same, through the depth adjustment mechanism, can adjust the extension length of the conductive rod and the contact under the rotation cooperation of the depth adjustment screw and the slider, so as to facilitate the operation inside the deeper power distribution equipment. At the same time, the rotation of the crank on the outside of the depth adjustment mechanism can make the depth adjustment mechanism as a whole convenient to operate.

[0020] 4. The portable split grounding trolley and its use method can adjust the height operating positions of multiple conductive rods and contacts through the support plate and height adjustment mechanism. At the same time, with the cooperation of the limit screw and the scale, the rising height of the contact can be accurately controlled to ensure refined operation inside the power equipment.

[0021] 5. The portable split earthing trolley and its use method can quickly adjust the lateral distance between multiple conductive rods and contacts through the mounting plate and lateral width adjustment mechanism, which is convenient for adjustment according to the required control parts inside the switch cabinet, further improving the operational versatility of the earthing trolley.

[0022] 6. The portable split grounding trolley and its use method can quickly install the contacts according to the contact operation requirements through the contacts, conductive rods and quick-release positioning mechanism. At the same time, under the extrusion cooperation of the grooves and the springs, the positioning blocks can be quickly moved away from the contacts, thereby completing the rapid disassembly of the contacts and improving the convenience of contact replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a light split ground-fighting trolley and a method for using the same proposed by the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the chassis vehicle in the present invention; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the mid-depth adjustment mechanism; Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the mid-height adjustment mechanism; Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the mid-height adjustment mechanism from another perspective; Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the middle and horizontal width adjustment mechanism; Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the conductive rod, contact and quick-release positioning mechanism.

[0024] In the figure: 1 grounding vehicle, 2 chassis vehicle, 3 housing, 4 depth adjustment mechanism, 5 height adjustment mechanism, 6 lateral width adjustment mechanism, 7 support plate, 8 reinforcement plate, 9 mounting plate, 10 conductive rod, 11 grounding connector, 12 contact, 13 support shaft, 14 walking wheel, 15 walking frame, 16 positioning block, 17 positioning hole, 18 groove, 19 spring, 20 handling buckle; 401 adjusting screw, 402 sliding block, 403 side plate, 404 bottom plate, 405 crank, 406 first slide rail, 407 first slide rail block; 501 support plate, 502 support frame, 503 baffle plate, 504 height adjustment screw rod, 505 moving plate, 506 slide slot, 507 limit screw rod, 508 adjustment handle, 509 scale rod; 601 top plate, 602 first support block, 603 second slide rail, 604 second slide rail block, 605 second support block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-7 A light split grounding trolley comprises a grounding trolley 1 and a chassis trolley 2. The grounding trolley 1 comprises a shell 3, a depth adjustment mechanism 4, a height adjustment mechanism 5 and a lateral width adjustment mechanism 6. Both lower ends of the shell 3 are fixed with carrying buckles 20. The chassis trolley 2 comprises two symmetrically arranged support shafts 13. The two support shafts 13 are respectively rotatably penetrated on both sides of the interior of the chassis 2. Both ends of the shaft walls of the two support shafts 13 are fixedly sleeved with walking wheels 14. A walking frame 15 is fixedly provided on the back side of the chassis 2. The grounding trolley 1 is placed on the top of the chassis 2. Three arranged conductive rods 10 are provided inside the lateral width adjustment mechanism 6. Grounding joints 11 are fixedly provided on the rod walls of the plurality of conductive rods 10 and located above the mounting plate 9. A contact 12 is sleeved on one end of the conductive rod 10 away from the shell 3. A quick-release positioning mechanism for limiting the position of the contact 12 is provided between the contact 12 and the end of the conductive rod 10, and the quick-release positioning mechanism includes a positioning block 16. A positioning hole 17 is provided on the side of the contact 12, and a groove 18 is provided on the rod wall of the conductive rod 10. A spring 19 is fixedly provided at the bottom of the inner wall of the groove 18. The positioning block 16 is located in the groove 18 and is fixedly connected to the spring 19. The positioning block 16 is a wedge-shaped block, and the positioning block 16 is inserted into the positioning hole 17.

[0027] When operating, firstly, the grounding vehicle 1 is moved to the side of the switch cabinet by the supporting wheels 13 and the running wheels 14 inside the chassis vehicle 2, and then the grounding vehicle 1 is carried inside the switch cabinet, and the contact 12 needs to be replaced according to the operation requirements. When the contact 12 needs to be replaced, the positioning block 17 can be pressed first, so that the positioning block 17 squeezes the spring 19 and enters the groove 18, and then the contact 12 can be removed from the conductive rod 10, and the new contact can be put on the conductive rod 10 again. Since the positioning block 17 is a wedge-shaped block, the positioning block 17 can rebound quickly when pushed and insert into the positioning hole 17, so as to complete the installation of the contact 12; Subsequently, the position of the contact 12 can be adjusted according to the position of the internal components of the maintenance cabinet. First, the height adjustment mechanism 6 is adjusted so that the depth adjustment mechanism drives the multiple contacts 12 to move longitudinally. When the contact 12 moves to the maintenance height, the distance between the multiple contacts 12 is adjusted by adjusting the horizontal width adjustment mechanism 6. Finally, the depth adjustment mechanism 4 is used to extend the contact 12 into the maintenance cabinet for electrical testing. If there is electricity, the operation is terminated. If there is no electricity, the three-phase grounding wire can be hung.

[0028] The depth adjustment mechanism 4, the height adjustment mechanism 5 and the lateral width adjustment mechanism 6 are all arranged in the housing 3. The depth adjustment mechanism 4 is fixedly arranged at the bottom of the inner wall of the housing 3. A support plate 7 is arranged on the top of the depth adjustment mechanism 4. The height adjustment mechanism 5 is fixedly arranged on the top of the support plate 7. The depth adjustment mechanism 4 includes a depth adjustment screw 401 and a slider 402. Two symmetrically arranged side plates 403 are fixedly arranged at the bottom of the inner wall of the housing 3. A bottom plate 404 is fixedly arranged between the two side plates 403. The rotation of the depth adjustment screw 401 It is arranged between the two side plates 403, the slider 402 is threadedly sleeved on the outer side of the depth adjustment screw 401, the support plate 7 is fixedly arranged on the top of the slider 402, the end of the depth adjustment screw 401 passes through the side plate 403 and is fixedly provided with a crank 405, two symmetrically arranged first slide rails 406 are fixedly arranged between the two side plates 403, the outer side sliding sleeve of the first slide rail 406 is provided with a first slide rail block 407, the top of the first slide rail block 407 is fixedly provided with a side block 408, and the side block 408 is fixedly connected to the slider 402.

[0029] When adjusting the depth, the crank 405 is first turned to drive the depth adjustment screw 401 to rotate. At this time, the sliding cooperation of the slider 402 on the first slide rail 405 and the first slide rail block 407 drives the support plate 7 to move, thereby completing the depth position adjustment of the contact 12.

[0030] The upper end of the outer wall of the height adjustment mechanism 5 is provided with two symmetrically arranged reinforcing plates 8, the tops of the two reinforcing plates 8 are fixedly provided with mounting plates 9, the lateral width adjustment mechanism 6 is fixedly provided on the top of the mounting plates 9, the height adjustment mechanism 5 includes a support plate 501, the support plate 501 is fixedly provided on the top of the support plate 7, a support frame 502 is fixedly provided on the top of the support plate 501, a baffle 503 is fixedly provided at the opening of the support frame 502, the mounting plate 9 is slidably sleeved on the outer side of the baffle 503, and a rotatable inner wall of the support frame 502 is penetrated by A height-adjusting screw 504 is threadedly sleeved with a movable plate 505 on the rod wall of the height-adjusting screw 504, and two reinforcing plates 8 are fixedly connected to the movable plate 505. The movable plate 505 is provided with two symmetrically arranged sliding grooves 506 on one side close to the baffle 503, and the side of the baffle 503 is slidably penetrated into the sliding groove 506. A limit screw 507 is threadedly penetrated on the back side of the support frame 502, and an adjusting handle 508 is fixedly sleeved on the rear end of the limit screw 507, and a scale 509 is fixedly provided on the outer wall of the support frame 502.

[0031] When the height of the contact 12 needs to be adjusted, the height adjustment screw 504 can be rotated. At this time, the movable plate 505 can move longitudinally. The movable plate 505 drives the mounting plate 9 to move longitudinally under the premise of being fixedly connected to the reinforcing plate 8, so that the mounting plate 9 moves longitudinally under the sliding cooperation with the baffle 503, thereby completing the adjustment of the height position of the contact 12. During the height adjustment process, the moving height of the movable plate 505 is limited by the limit screw 507. At the same time, with the cooperation of the scale 509, the height movement position of the contact 12 can be precisely controlled to ensure refined operation.

[0032] The lateral width adjustment mechanism 6 includes a top plate 601, which is fixed on the top of the mounting plate 9. A first support block 602 is fixedly provided at the middle end of the top of the top plate 601. An intermediate conductive rod 10 is fixedly provided inside the first support block 602. Second slide rails 603 are fixedly provided at both ends of the top of the top plate 601. A second slide rail block 604 is provided on the outer sliding sleeve of the second slide rail 603. A second support block 605 is fixedly provided on the top of the second slide rail block 604. The conductive rods 10 on both sides are fixedly provided inside the two second support blocks 605 respectively.

[0033] When the spacing between multiple contacts 12 needs to be adjusted, since the first support block 602 is fixed to the top plate 601, the position of the middle conductive rod 10 is determined, so that the positions of the conductive rods 10 on both sides can be adjusted under the sliding cooperation of the second slide rail 603 and the second slide rail block 604, so as to facilitate the precise matching of the contacts 12 with the maintenance components inside the maintenance cabinet.

[0034] A method of using a light split grounding trolley: First, the grounding vehicle 1 is moved to the side of the switch cabinet by the supporting wheels 13 and the running wheels 14 inside the chassis 2, and then the grounding vehicle 1 is carried inside the switch cabinet, and the contact 12 needs to be replaced according to the operation requirements. When the contact 12 needs to be replaced, the positioning block 17 can be pressed first, so that the positioning block 17 squeezes the spring 19 and enters the groove 18, and then the contact 12 can be removed from the conductive rod 10, and the new contact can be put on the conductive rod 10 again. Since the positioning block 17 is a wedge-shaped block, the positioning block 17 can rebound quickly when pushed and insert into the positioning hole 17, so as to complete the installation of the contact 12; Subsequently, the position of the contact 12 can be adjusted according to the position of the internal components of the maintenance cabinet. First, the height adjustment mechanism 6 is adjusted, and the height adjustment screw 504 can be rotated. At this time, the movable plate 505 can move longitudinally, and the movable plate 505 drives the mounting plate 9 to move longitudinally under the premise of being fixedly connected to the reinforcing plate 8, so that the mounting plate 9 moves longitudinally under the sliding cooperation with the baffle 503, thereby completing the adjustment of the height position of the contact 12. During the height adjustment process, the moving height of the movable plate 505 is limited by the limit screw 507. At the same time, with the cooperation of the scale 509, the height movement position of the contact 12 can be accurately controlled; Then, the depth adjustment mechanism 4 drives the multiple contacts 12 to move longitudinally. First, the crank 405 is rotated to drive the depth adjustment screw 401 to rotate. At this time, the sliding block 402 slides on the first slide rail 405 and the first slide rail block 407 to drive the support plate 7 to move, thereby completing the depth position adjustment of the contacts 12. Then, by adjusting the lateral width adjustment mechanism 6, the distance between the multiple contacts 12 is adjusted. Since the first support block 602 is fixed to the top plate 601, the position of the middle conductive rod 10 is determined at this time, so that the positions of the conductive rods 10 on both sides can be adjusted under the sliding cooperation of the second slide rail 603 and the second slide rail block 604, so as to facilitate the precise matching of the contacts 12 with the maintenance components inside the maintenance cabinet. Finally, the depth adjustment mechanism 4 is used to extend the contacts 12 into the maintenance cabinet for electrical testing. If there is electricity, the operation is terminated. If there is no electricity, the three-phase grounding wire can be hung.

[0035] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light split grounding trolley, comprising a grounding trolley (1) and a chassis trolley (2), characterized in that: The grounding vehicle (1) comprises a shell (3), a depth adjustment mechanism (4), a height adjustment mechanism (5) and a lateral width adjustment mechanism (6); the grounding vehicle (1) is placed on top of the chassis vehicle (2); and transport buckles (20) are fixedly provided at the lower ends of both sides of the shell (3); The depth adjustment mechanism (4), the height adjustment mechanism (5) and the lateral width adjustment mechanism (6) are all arranged in the housing (3); the depth adjustment mechanism (4) is fixedly arranged at the bottom of the inner wall of the housing (3); a support plate (7) is arranged at the top of the depth adjustment mechanism (4); and the height adjustment mechanism (5) is fixedly arranged at the top of the support plate (7); Two symmetrically arranged reinforcing plates (8) are provided at the upper end of the outer side wall of the height adjustment mechanism (5), a mounting plate (9) is fixedly provided on the top of the two reinforcing plates (8), and the lateral width adjustment mechanism (6) is fixedly provided on the top of the mounting plate (9); Three conductive rods (10) are arranged in an array inside the transverse width adjustment mechanism (6); grounding connectors (11) are fixedly provided on the rod walls of the plurality of conductive rods (10) and located above the mounting plate (9); and a contact (12) is sleeved on one end of the conductive rod (10) away from the housing (3); A quick-release positioning mechanism for limiting the position of the contact (12) is provided between the contact (12) and the end of the conductive rod (10).

2. A light split ground-moving trolley according to claim 1, characterized in that: The depth adjustment mechanism (4) comprises a depth adjustment screw (401) and a slider (402); two symmetrically arranged side plates (403) are fixedly provided at the bottom of the inner wall of the housing (3); a bottom plate (404) is fixedly provided between the two side plates (403); the rotation of the depth adjustment screw (401) is arranged between the two side plates (403); the slider (402) is threadedly sleeved on the outer side of the depth adjustment screw (401); the support plate (7) is fixedly provided on the top of the slider (402); and the end of the depth adjustment screw (401) passes through the side plates (403) and is fixedly provided with a crank (405).

3. A light split ground-moving trolley according to claim 2, characterized in that: Two symmetrically arranged first slide rails (406) are fixedly provided between the two side plates (403); a first slide rail block (407) is provided on the outer sliding sleeve of the first slide rail (406); a side block (408) is fixedly provided on the top of the first slide rail block (407); and the side block (408) is fixedly connected to the slider (402).

4. A light split ground-moving trolley according to claim 1, characterized in that: The height adjustment mechanism (5) comprises a support plate (501), the support plate (501) being fixedly arranged on the top of the support plate (7), a support frame (502) being fixedly arranged on the top of the support plate (501), a baffle (503) being fixedly arranged at the opening of the support frame (502), the mounting plate (9) being slidably sleeved on the outer side of the baffle (503), a height adjustment screw (504) being rotatably penetrated through the inner wall of the support frame (502), a movable plate (505) being threadedly sleeved on the rod wall of the height adjustment screw (504), and both of the two reinforcing plates (8) being fixedly connected to the movable plate (505).

5. A light split ground-moving trolley according to claim 4, characterized in that: Two symmetrically arranged sliding grooves (506) are provided on one side of the movable plate (505) close to the baffle plate (503), and the side portion of the baffle plate (503) is slidably inserted into the sliding grooves (506).

6. A light split ground-moving trolley according to claim 1, characterized in that: The lateral width adjustment mechanism (6) comprises a top plate (601), wherein the top plate (601) is fixedly arranged on the top of the mounting plate (9), a first support block (602) is fixedly arranged at the middle end of the top of the top plate (601), the conductive rod (10) in the middle is fixedly arranged and penetrated inside the first support block (602), second slide rails (603) are fixedly arranged at both ends of the top of the top plate (601), a second slide rail block (604) is slidingly sleeved on the outer side of the second slide rail (603), a second support block (605) is fixedly arranged on the top of the second slide rail block (604), and the conductive rods (10) on both sides are fixedly arranged and penetrated inside two second support blocks (605) respectively.

7. The portable split ground-moving trolley according to claim 1, characterized in that: The chassis vehicle (2) comprises two symmetrically arranged support shafts (13), the two support shafts (13) being rotatably arranged on both sides of the interior of the chassis vehicle (2), respectively, and travel wheels (14) being fixedly sleeved on both ends of the shaft walls of the two support shafts (13), and a travel frame (15) being fixedly arranged on the back side of the chassis vehicle (2).

8. The portable split ground-moving trolley according to claim 1, characterized in that: The quick-release positioning mechanism comprises a positioning block (16), a positioning hole (17) is provided on the side of the contact (12), a groove (18) is provided on the rod wall of the conductive rod (10), a spring (19) is fixedly provided at the bottom of the inner wall of the groove (18), the positioning block (16) is located in the groove (18) and is fixedly connected to the spring (19), the positioning block (16) is a wedge-shaped block, and the positioning block (16) is inserted into the positioning hole (17).

9. The portable split ground-moving trolley according to claim 4, characterized in that: A limit screw (507) is threadedly provided on the back side of the support frame (502), an adjustment handle (508) is fixedly sleeved on the rear end of the limit screw (507), and a scale (509) is fixedly provided on the outer wall of the support frame (502).

10. A method for using a light split grounding trolley, characterized in that: The portable split ground-fighting trolley according to any one of claims 1 to 9 is specifically comprised of the following steps: S1: moving the grounding vehicle (1) to the side of the switch cabinet by means of a chassis vehicle (2), then moving the grounding vehicle (1) into the switch cabinet, and determining whether the contact (12) needs to be replaced according to the operation requirements; S2: When the contact (12) needs to be replaced, the positioning block (17) can be pressed first, so that the positioning block (17) squeezes the spring (19) and enters the groove (18), and then the contact (12) can be removed from the conductive rod (10), and a new contact can be put on the conductive rod (10) again; S3: The position of the contact (12) can then be adjusted according to the position of the internal components of the maintenance cabinet. First, the height adjustment mechanism (6) is adjusted, and the height adjustment screw (504) can be rotated. At this time, the movable plate (505) can move longitudinally, and the movable plate (505) drives the mounting plate (9) to move longitudinally under the premise of being fixedly connected to the reinforcing plate (8), so that the mounting plate (9) moves longitudinally under the sliding cooperation with the baffle (503), thereby completing the adjustment of the height position of the contact (12); Then, the depth adjustment mechanism (4) drives the plurality of contacts (12) to move longitudinally. First, the crank (405) is rotated so that the depth adjustment screw (401) is driven to rotate. At this time, the slider (402) moves to complete the depth position adjustment of the contacts (12); Then, the distance between the plurality of contacts (12) is adjusted by adjusting the transverse width adjustment mechanism (6), and the positions of the conductive rods (10) on both sides are adjusted under the sliding cooperation of the second slide rail (603) and the second slide rail block (604), so as to facilitate accurate matching of the contacts (12) with the maintenance components inside the maintenance cabinet; S4: Finally, the contact (12) is extended into the inspection cabinet through the depth adjustment mechanism (4) to perform an electrical inspection. If there is electricity, the operation is terminated. If there is no electricity, a three-phase grounding wire can be connected.

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