Multifunctional trolley for vacuum circuit breaker assembly

Abstract

The utility model discloses a multifunctional trolley suitable for vacuum circuit breaker assembly belongs to vacuum circuit breaker technical field, this multifunctional trolley suitable for vacuum circuit breaker assembly, including the car body, the car body rear end rotation is connected with the rotating mechanism for drive body movement, the car body bottom sliding connection has the locking mechanism for fixed movement pole, the both sides of car body all are connected with the adjusting mechanism, the utility model discloses through transmission mechanism realizes the horizontal linear motion of vacuum circuit breaker body, makes circuit breaker pole and tool fixture form accurate alignment, through locking mechanism realizes the quick release and fixed of movement pole, and personnel is convenient to enter the maintenance operation of car body bottom gap, through adjusting mechanism realizes the quick unlocking and locking of long rod angle, and cooperation horizontal pole push forms flexible steering operation interface, through the combination configuration of trundle and universal wheel realizes the dual mobile function of straight line travel and 90 degrees steering, and cooperation pressing type brake pad forms instant mechanical locking positioning.

Description

Technical Field

[0001] This utility model relates to the field of vacuum circuit breaker technology, and in particular to a multi-functional trolley suitable for assembling vacuum circuit breakers. Background Technology

[0002] Vacuum circuit breakers are circuit breakers that use vacuum as the arc-extinguishing and insulating medium. They mainly consist of a vacuum arc-extinguishing chamber, an operating mechanism, and a support frame. They are characterized by strong arc-extinguishing capability, long electrical life, small size, and low maintenance, and are widely used in power distribution networks.

[0003] In the field of vacuum circuit breaker manufacturing, existing technologies have certain technical shortcomings: traditional production lines use fixed workstation layouts, requiring the entire production line to be interrupted when equipment needs to be disassembled and moved, leading to disrupted production rhythms and an inability to achieve modular production integration. Especially when dealing with temporary production tasks, the lack of quickly deployable auxiliary assembly devices severely restricts the flexibility of the production system. In existing rework processes, the maintenance and transfer of vacuum circuit breakers still rely on manual handling or general-purpose transfer equipment, which cannot accurately reproduce the rework path and carries the risk of secondary damage, extending the rework cycle by more than 30%. Furthermore, the lack of integrated maintenance operation platform functionality results in maintenance workstations... The existing transfer equipment for special-specification products such as high-current vacuum circuit breakers has significant functional limitations. It cannot meet the load-bearing requirements brought about by their extraordinary size and weight, nor can it be compatible with the co-production of conventional models. This results in a production line adjustment cycle of 7-15 working days, causing serious idleness of production resources. More importantly, the existing technology system completely separates the R&D and trial production from the mass production stage. New product trial installation and verification must occupy the formal production station, which affects mass production efficiency and poses a risk to technology confidentiality. This single-function equipment configuration can no longer meet the transformation needs of modern vacuum circuit breaker manufacturing towards the integrated development of R&D, trial production, and mass production.

[0004] Therefore, there is an urgent need to provide a multi-functional trolley suitable for assembling vacuum circuit breakers to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a multi-functional trolley suitable for assembling vacuum circuit breakers.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a multi-functional trolley suitable for assembling vacuum circuit breakers, including a trolley body, a vacuum circuit breaker body placed on the top of the trolley body, and a rotating mechanism for driving the movement of the drive body rotatably connected to the rear end of the trolley body.

[0007] A movable rod is slidably connected to the rear bottom of the vehicle body, and a locking mechanism for fixing the movable rod is slidably connected to the bottom of the vehicle body. A gap is formed between the movable rod and the bottom of the vehicle body, and the gap is used for workers to enter for maintenance.

[0008] Both sides of the vehicle body are connected to adjustment mechanisms, and each of the two adjustment mechanisms is rotatably connected to a long rod. The adjustment mechanisms are used to adjust the angle of the long rod relative to the vehicle body. The bottom of the vehicle body is fixedly connected to two trays located on both sides of the gap. The trays are used to place materials and tools.

[0009] The present invention is further configured such that: two casters are installed at the rear end of the bottom of the vehicle body, and two omnidirectional wheels are installed at the front end of the bottom of the vehicle body, and brake pads are installed on the top of each of the two omnidirectional wheels.

[0010] Through the above technical solution, the combination of casters and swivel wheels enables the trolley to have both linear movement and steering functions. In production line transfer scenarios, the swivel wheels enable 90-degree turning, adapting to the transportation needs of narrow passages. The brake pads adopt a press-type mechanical locking structure. When the trolley arrives at the workstation, the operator can step on the brake pads to achieve instant positioning, effectively preventing displacement during assembly operations. It is particularly suitable for positioning and assembly scenarios of precision equipment such as vacuum circuit breaker bodies.

[0011] The present invention is further configured such that: the rotating mechanism includes a rotating shaft rotatably connected to the top of the vehicle body, a screw fixedly connected to the outside of the rotating shaft, a fixed box slidably connected to the top of the vehicle body, the device being placed inside the fixed box, a slider fixedly connected to the bottom of the fixed box being rotatably connected to the outside of the screw via a thread, and a handle being installed at one end of the rotating shaft.

[0012] Through the above technical solution, the rotating mechanism drives the rotating shaft to rotate via the rotating handle, which in turn drives the screw to rotate and the slider to move, thus driving the fixed box to carry the vacuum circuit breaker body to move horizontally. When assembling the pole, the operator can precisely control the number of rotations of the handle to achieve millimeter-level positional fine adjustment, so that the circuit breaker body pole and the tooling fixture are precisely aligned. This transmission design converts rotational motion into linear motion, effectively solving the technical problem of large positioning deviation in traditional manual handling.

[0013] The present invention is further configured such that: two support rods located on both sides of the gap are fixedly connected inside the vehicle body; the two support rods are respectively provided with grooves on their inward side; movable blocks corresponding to the grooves are fixedly connected to both ends of the movable rod; crossbars are fixedly connected to the top ends of the two long rods; the crossbars and long rods are combined to form handles; and baffles that abut against the movable blocks are fixedly connected to one end of the two support rods.

[0014] Through the above technical solution, the support rod and the movable rod constitute a gap adjustment system. The gap position is adjusted by the sliding of the movable block in the groove. When maintenance is not required, the movable rod supports the support rods on both sides. When maintenance is required, the locking mechanism is released, the movable rod is slid to the other side, and the staff can directly enter the gap for easy maintenance. The groove and the movable block cooperate to limit and guide the movable rod. The crossbar is pushed to move the vehicle body. The baffle and the fixed block cooperate to fix the movable rod.

[0015] The present invention is further configured such that: the locking mechanism includes two sleeves respectively fixedly connected in two support rods, and each of the two sleeves has a fixed block with one end inclined. One side of each of the two fixed blocks is in contact with and abuts against two movable blocks. One end of each of the two fixed blocks is fixedly connected to a pull rod passing through the support plate. A spring is sleeved on the outside of each of the two pull rods, and the two ends of the spring are fixedly connected to one end of the fixed block and the sleeve respectively.

[0016] Through the above technical solution, the locking mechanism functions to fix the moving rod. It is fixed from both sides by a baffle and a fixing block, at which point the moving rod supports the support rods on both sides. When a worker needs to enter the gap for maintenance, pulling the lever outwards moves the fixing block outwards, compressing the spring. After the fixing block separates from the moving block, the moving rod can be slid to the other end of the support rod, allowing the worker to enter the gap for maintenance. When the moving rod is slid in the opposite direction to reset, the moving block presses against the inclined surface of the fixing block, compressing the spring until the moving block moves to the back of the fixing block, where the baffle and fixing block limit the movement of the moving rod.

[0017] The present invention is further configured such that: the adjustment mechanism includes two first brackets respectively fixedly connected to both sides of the vehicle body, each of the two first brackets having a shaft rotatably connected inside, one end of each of the two long rods being fixedly connected to the two shafts, one end of each of the two long rods having multiple slots, each of the two first brackets having a pull shaft slidably connected inside, each of the two pull shafts having multiple protrusions respectively corresponding to the slots, and one end of each pull shaft having a rod.

[0018] Through the above technical solution, the function of the adjustment mechanism is to adjust the angle of the long rod. When the worker needs to move the vehicle body, he pushes the crossbar and the long rod to move the vehicle body. When the angle of the long rod needs to be adjusted, he pulls the second rod outward, which drives the pulling shaft and the protrusion outward. The protrusion disengages from the second groove. At this time, the second shaft and the long rod can be rotated to adjust the angle. After the angle is adjusted, the pulling shaft and the protrusion are slid inward, and the protrusion enters the second groove again, abutting the long rod and fixing it. It is convenient, quick, simple and practical.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model achieves horizontal linear movement of the vacuum circuit breaker body through a transmission mechanism, enabling precise alignment between the circuit breaker pole and the tooling fixture; it achieves quick release and fixation of the moving rod through a locking mechanism, facilitating personnel access to the gap at the bottom of the vehicle body for maintenance work; it achieves quick unlocking and locking of the long rod angle through an adjustment mechanism, forming a flexible steering operation interface in conjunction with the crossbar push; and it achieves dual movement functions of straight-line travel and 90-degree steering through a combination of casters and swivel wheels, forming an instant mechanical locking positioning in conjunction with the press-type brake pads.

[0021] 2. This utility model achieves universality in the production of high-current and low-current circuit breakers through a bipolar column adapter design, and achieves overall lightweighting while ensuring a load-bearing capacity of over 800 catties with the aluminum alloy frame; the gap adjustment system composed of adjustable moving rods and support rods meets the equipment support requirements while forming a convenient maintenance channel, and the pallet design realizes the temporary storage function of materials and tools. Attached Figure Description

[0022] Figure 1 This is a first-view structural diagram of the present invention;

[0023] Figure 2 This is a second-view sectional view of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 5 This is a third-view sectional view of the present invention;

[0027] Figure 6 for Figure 5 A magnified view of a section at point C;

[0028] Figure 7 This is a fourth-angle sectional view of the present invention.

[0029] In the diagram: 1. Vehicle body; 2. Component body; 3. Rotating mechanism; 301. Rotating shaft; 302. Screw; 303. Fixing box; 304. Slider; 4. Moving rod; 5. Locking mechanism; 501. Sleeve; 502. Fixing block; 503. Pull rod; 504. Spring; 6. Gap; 7. Adjusting mechanism; 701. First bracket; 702. Shaft 2; 703. Groove 2; 704. Pull shaft; 705. Protrusion; 706. Rod 2; 8. Long rod; 9. Support plate; 10. Caster; 11. Universal wheel; 12. Brake pad; 13. Support rod; 14. Groove; 15. Movable block; 16. Crossbar; 17. Baffle. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0031] Please see Figures 1-7 This embodiment describes a multi-functional trolley for assembling vacuum circuit breakers, comprising a body 1, a device 2 placed on top of the body 1, and a rotating mechanism 3 rotatably connected to the rear end of the body 1 for moving the device 2. The rotating mechanism 3 includes a rotating shaft 301 rotatably connected to the top of the body 1, a screw 302 fixedly connected to the outside of the rotating shaft 301, a fixed box 303 slidably connected to the top of the body 1, the device 2 placed inside the fixed box 303, and the screw 302 being rotatably connected to the bottom of the fixed box 303 via a threaded connection. The connected slider 304 has a handle installed at one end of the rotating shaft 301. The rotating mechanism 3 drives the rotating shaft 301 to rotate by rotating the handle, which in turn drives the screw 302 to rotate, which in turn drives the slider 304 to move, driving the fixed box 303 to carry the device body 2 to move horizontally. When assembling the pole, the operator can precisely control the number of rotations of the handle to achieve millimeter-level position fine adjustment, so that the pole of the device body 2 is precisely aligned with the tooling fixture. This transmission design converts rotational motion into linear motion, effectively solving the technical problem of large positioning deviation in traditional manual handling.

[0032] like Figures 5-7As shown, a movable rod 4 is slidably connected to the rear bottom of the vehicle body 1, and a locking mechanism 5 for fixing the movable rod 4 is slidably connected to the bottom of the vehicle body 1. A gap 6 is formed between the movable rod 4 and the bottom of the vehicle body 1, allowing workers to enter for maintenance. The locking mechanism 5 includes two sleeves 501 respectively fixedly connected to two support rods 13. A fixed block 502 with an inclined end is slidably connected inside each sleeve 501. One side of each fixed block 502 contacts and abuts against two movable blocks 15. A pull rod 503 passing through the support plate 9 is fixedly connected to one end of each fixed block 502. A spring 504 is sleeved on the outside of each pull rod 503. The two ends of the spring 504 are fixedly connected to one end of the fixed block 502 and the sleeve 501 respectively. The function of the locking mechanism 5 is... The movable rod 4 is fixed and secured from both sides by the baffle 17 and the fixed block 502. At this time, the movable rod 4 supports the support rods 13 on both sides. When the worker needs to enter the gap 6 for maintenance, the pull rod 503 is pulled outward, which moves the fixed block 502 outward and compresses the spring 504. After the fixed block 502 is separated from the movable block 15, the movable rod 4 can be slid to move to the other end of the support rod 13. At this time, the worker can enter the gap 6 for maintenance. When the movable rod 4 is slid in the opposite direction to reset it, the movable block 15 abuts against the inclined surface of the fixed block 502, causing the fixed block 502 to compress the spring 504 until the movable block 15 moves to the back of the fixed block 502. The baffle 17 and the fixed block 502 limit the movable rod 4.

[0033] like Figures 2-3 As shown, both sides of the vehicle body 1 are connected to adjustment mechanisms 7. Each adjustment mechanism 7 has a long rod 8 rotatably connected within it. The adjustment mechanisms 7 are used to adjust the angle of the long rod 8 relative to the vehicle body 1. Two trays 9, located on either side of the gap 6, are fixedly connected to the bottom of the vehicle body 1. The trays 9 are used to place materials and tools. The adjustment mechanisms 7 include two first brackets 701 fixedly connected to both sides of the vehicle body 1. Each first bracket 701 has a shaft 702 rotatably connected within it. One end of each long rod 8 is fixedly connected to the two shafts 702. Each end of each long rod 8 has multiple slots 703. Each first bracket 701 has a sliding pull shaft 704 slidably connected within it. The exterior of each pull shaft 704 is fixed... Multiple protrusions 705 are connected to the groove 703, and rods 706 are fixedly connected to one end of each of the two pull shafts 704. The function of the adjustment mechanism 7 is to adjust the angle of the long rod 8. When the worker needs to move the vehicle body 1, he pushes the crossbar 16 and the long rod 8 to move the vehicle body 1. When the angle of the long rod 8 needs to be adjusted, the rod 706 is pulled outward, which drives the pull shaft 704 and the protrusions 705 outward. The protrusions 705 are disengaged from the groove 703. At this time, the shaft 702 and the long rod 8 can be rotated to adjust the angle. After the angle is adjusted, the pull shaft 704 and the protrusions 705 are slid inward, and the protrusions 705 re-enter the groove 703, abutting against the long rod 8 and fixing it. It is convenient, quick, simple and practical.

[0034] like Figures 1-7 As shown, two casters 10 are installed at the rear end of the bottom of the vehicle body 1, and two swivel casters 11 are installed at the front end of the bottom of the vehicle body 1. Each swivel caster 11 has a brake pad 12 mounted on its top. This combination of casters 10 and swivel casters 11 enables the vehicle body 1 to perform both linear movement and steering. In production line transport scenarios, the swivel casters 11 allow for 90-degree turns, adapting to the needs of transporting goods in narrow passages. The brake pads 12 employ a press-type mechanical locking structure. When the vehicle body 1 arrives at the workstation, the operator can immediately position it by stepping on the brake pads 12, effectively preventing displacement during assembly operations. This is particularly suitable for positioning and assembly scenarios of precision equipment such as the device body 2. The vehicle body 1 can assist in temporary production assembly without affecting the project's production schedule. The vehicle body 1 can also serve as a temporary maintenance trolley, offering convenience and speed. By assembling a small current pole on one side of the vehicle body 1 and a large current pole on the other side, the vehicle body 1 is suitable for both high-current and low-current circuit breaker production, achieving versatility and increasing production efficiency. Further in-depth research and development of vacuum circuit breakers, such as sample trial assembly and prototype manufacturing, can be carried out using the assembly and transport vehicle body 1, thus not occupying production workstations. The vehicle body 1 is made of aluminum alloy profiles, which are lightweight and easy to assemble and disassemble. If improvements are needed later, the position of the aluminum profiles can be adjusted. The load-bearing capacity of the vehicle body 1 is over 800 catties, using 40*40mm aluminum alloy profiles and 4-5 inch casters. Sufficient clearance is left at the bottom of the vehicle body 1 for easy worker access and maintenance. Small trays are designed on both sides for placing materials and tools during production and maintenance.

[0035] like Figures 2-7 As shown, two support rods 13 are fixedly connected inside the vehicle body 1, located on both sides of the gap 6. Each support rod 13 has a groove 14 on its inward-facing side. Movable blocks 15 corresponding to the grooves 14 are fixedly connected to both ends of the movable rod 4. A crossbar 16 is fixedly connected to the top of each of the two long rods 8, forming a handle with the long rod 8. A baffle 17 that abuts against the movable block 15 is fixedly connected to one end of each of the two support rods 13. The support rods 13 and the movable rod 4 constitute a gap adjustment system. The position of the gap 6 is adjusted by the sliding of the movable block 15 within the groove 14. When maintenance is not required, the movable rod 4 supports the support rods 13 on both sides. When maintenance is required, the locking mechanism 5 is released, and the movable rod 4 is slid to the other side, allowing workers to directly enter the gap 6 for convenient maintenance. The groove 14 and the movable block 15 cooperate to limit and guide the movable rod 4. The vehicle body 1 is moved by pushing the crossbar 16, and the movable rod 4 is fixed by the baffle 17 and the fixed block 502.

[0036] In use, this utility model drives the rotating shaft 301 to rotate the screw 302 by rotating the handle, causing the slider 304 to translate along the axial direction of the screw 302, thereby pushing the fixed box 303 to carry the device 2 in a horizontal linear motion. The operator can achieve millimeter-level displacement adjustment by precisely controlling the number of rotations of the handle, so that the pole of the device 2 is accurately aligned with the tooling fixture. When it is necessary to enter the bottom of the vehicle body 1 for maintenance, the pull rod 503 is pulled outward to drive the fixed block 502 to compress the spring 504 and disengage from the movable block 15, releasing the clamping state of the moving rod 4. At this time, the moving rod 4 can be pushed laterally to slide along the groove 14 of the support rod 13 to the other side to form a maintenance passage. The worker enters the maintenance area through the reserved gap 6 at the bottom of the vehicle body 1. After the maintenance is completed, the moving rod 4 is pushed back to reset. When the inclined surface of the movable block 15 contacts the fixed block 502, the spring 504 is automatically squeezed to make way. After the moving rod 4 is fully reset, the spring 504 is released. 4. The reset drive fixing block 502 and the baffle 17 form a bidirectional clamping fixation; during daily movement, the crossbar 16 pushes the long rod 8 to make the caster 10 and the universal wheel 11 cooperate to achieve straight travel or 90-degree turning. When the angle of the long rod 8 needs to be adjusted, the second rod 706 is pulled outward to drive the pull shaft 704 to move, so that the protrusion 705 is disengaged from the groove 703 of the long rod 8 to release the angle lock. After rotating the long rod 8 to the required angle, the second rod 706 is pushed back to make the protrusion 705 re-enter the groove 703 to complete the fixation; during operation, the brake pad 12 of the universal wheel 1 is stepped on to achieve mechanical locking and positioning. The side plates 9 of the vehicle body 1 can temporarily store materials and tools. The aluminum alloy frame can achieve a lightweight design while ensuring a load-bearing capacity of more than 800 catties. The gap 6 reserved and the adjustable moving rod 4 structure can meet the equipment support requirements and facilitate personnel access and maintenance. The dual-specification pole adaptation design makes the vehicle body 1 applicable to different current level circuit breaker production scenarios.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-functional trolley suitable for assembling vacuum circuit breakers, comprising a trolley body (1), characterized in that: A vacuum circuit breaker body (2) is placed on the top of the vehicle body (1), and a rotating mechanism (3) for moving the drive body (2) is rotatably connected to the rear end of the vehicle body (1). A movable rod (4) is slidably connected to the bottom rear end of the vehicle body (1), and a locking mechanism (5) for fixing the movable rod (4) is slidably connected to the bottom of the vehicle body (1). A gap (6) is formed between the movable rod (4) and the bottom of the vehicle body (1), and the gap (6) is used for workers to enter for maintenance. The vehicle body (1) is connected to two adjustment mechanisms (7) on both sides. Each of the two adjustment mechanisms (7) is rotatably connected to a long rod (8). The adjustment mechanism (7) is used to adjust the angle of the long rod (8) relative to the vehicle body (1). The bottom of the vehicle body (1) is fixedly connected to two trays (9) located on both sides of the gap (6). The trays (9) are used to place materials and tools.

2. The multi-functional trolley for assembling vacuum circuit breakers according to claim 1, characterized in that: Two casters (10) are installed at the rear end of the bottom of the vehicle body (1), and two omnidirectional wheels (11) are installed at the front end of the bottom of the vehicle body (1). Brake pads (12) are installed on the top of the two omnidirectional wheels (11).

3. The multi-functional trolley for assembling vacuum circuit breakers according to claim 1, characterized in that: The rotating mechanism (3) includes a rotating shaft (301) rotatably connected to the top of the vehicle body (1), a screw (302) fixedly connected to the outside of the rotating shaft (301), a fixed box (303) slidably connected to the top of the vehicle body (1), the device body (2) is placed inside the fixed box (303), a slider (304) fixedly connected to the bottom of the fixed box (303) is rotatably connected to the outside of the screw (302) by a thread, and a handle is installed at one end of the rotating shaft (301).

4. The multi-functional trolley for assembling vacuum circuit breakers according to claim 1, characterized in that: The vehicle body (1) has two support rods (13) fixedly connected inside, located on both sides of the gap (6). The two support rods (13) have grooves (14) on their inward sides respectively. The two ends of the movable rod (4) are fixedly connected to movable blocks (15) corresponding to the grooves (14). The top ends of the two long rods (8) are fixedly connected to crossbars (16). The crossbars (16) and the long rods (8) are combined to form a handle. One end of the two support rods (13) is fixedly connected to a baffle (17) that abuts against the movable block (15).

5. The multi-functional trolley for assembling vacuum circuit breakers according to claim 4, characterized in that: The locking mechanism (5) includes two sleeves (501) that are fixedly connected to two support rods (13) respectively. Each sleeve (501) has a fixed block (502) with one end inclined. One side of each fixed block (502) is in contact with and abuts against two movable blocks (15). One end of each fixed block (502) is fixedly connected to a pull rod (503) that passes through the support plate (9). The outside of each pull rod (503) is fitted with a spring (504). The two ends of the spring (504) are fixedly connected to one end of the fixed block (502) and the sleeve (501) respectively.

6. The multi-functional trolley for assembling vacuum circuit breakers according to claim 1, characterized in that: The adjustment mechanism (7) includes two first brackets (701) fixedly connected to both sides of the vehicle body (1). A shaft (702) is rotatably connected inside each of the two first brackets (701). One end of each of the two long rods (8) is fixedly connected to the two shafts (702). Multiple slots (703) are opened at one end of each of the two long rods (8). A pull shaft (704) is slidably connected inside each of the two first brackets (701). Multiple protrusions (705) corresponding to the slots (703) are fixedly connected to the outside of each of the two pull shafts (704). A rod (706) is fixedly connected to one end of each of the two pull shafts (704).

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