Transfer trolley for centrally installed switchgear

Abstract

The utility model relates to the technical field of transfer trolleys, and discloses a centrally installed switchgear transfer trolley which comprises a trolley body and a bearing face, a plurality of adjusting units slidably connected with the upper end face of the trolley body are installed at the four corners of the bottom face of the bearing face, each adjusting unit comprises a sliding rod installed on the bottom face of the bearing face, and the sliding rods penetrate through the upper end of the trolley body and are slidably connected with the upper end of the trolley body. A plurality of inserting grooves are formed in the side wall of the sliding rod, a limiting unit used for being movably connected with the inserting grooves in an inserted mode is installed on the upper end face of the trolley body, and the limiting unit comprises two sliding sleeves installed on the upper surface of the trolley body; the sliding rods are installed on the vehicle body to support the bearing face, the limiting units are used for being matched with the inserting grooves in the sliding rods to limit the sliding rods, then the height of the bearing face can be rapidly adjusted, the four corners of the bearing face synchronously ascend or descend, the adjusting convenience is improved, meanwhile, the bearing face cannot be damaged, and the service life of the bearing face is prolonged. The practicability is improved, and the circuit breakers in the centrally installed switchgear with different heights can be transferred conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer vehicles, in particular to a center cabinet transfer vehicle. Background Art

[0002] The full name of a center-mounted cabinet is armored removable center-mount metal-enclosed switchgear. It has a three-tier structure: the upper tier houses the busbar and instrument compartments (which are isolated from each other), the middle tier houses the circuit breaker compartment, and the lower tier houses the cable compartment. Because the circuit breaker is located in the middle tier, it is called an armored removable center-mount metal-enclosed switchgear, or simply a center-mounted cabinet. Since the circuit breaker is the core component of the center-mounted cabinet, it is typically mounted on a circuit breaker trolley, allowing it to be easily pulled in and out of the cabinet. Therefore, a specialized transport vehicle is required to transport the circuit breaker trolley in and out of the cabinet.

[0003] Existing technologies, such as the patent with publication number CN203406540U, disclose a center cabinet transfer vehicle, comprising a trolley frame, with wheels mounted at the bottom in the height direction and a guide rail mounting panel mounted at the top. Features: The guide rail mounting panel comprises an upper panel and a side panel extending downwardly from the side of the upper panel, the upper panel being provided with a circuit breaker trolley rail, at least one positioning shaft being provided on the side panel facing the switch cabinet in the use state, a lock plate being provided below the upper panel, one end of the lock plate being mounted on the side panel with the positioning shaft, and the other end of the lock plate being mounted on another side panel that is arranged face to face and parallel to the side panel with the positioning shaft. Advantages: It can be conveniently docked with the guide rail inside the switch cabinet, thereby improving safety during the transfer process; it makes docking of the transfer vehicle with the switch cabinet convenient and reliable, and the locking is firm, thereby improving the reliability of the operation; it is convenient to adjust the height; the structure is simpler, and the operation is more convenient.

[0004] Existing technologies still have shortcomings:

[0005] In the prior art, the guide rail mounting panel for supporting the circuit breaker is adjusted in height by rotating multiple screws and a trolley frame thread. However, in actual use, the multiple screws need to rotate synchronously to avoid screw conflicts and adjust the guide rail mounting panel. The adjustment of the guide rail mounting panel is too cumbersome. When one of the screws is tightened too much, it is easy to cause the guide rail mounting panel to bend and be damaged. For this reason, a central cabinet transfer trolley is proposed. Utility Model Content

[0006] In view of the deficiencies of the existing technology, the utility model provides a center cabinet transfer trolley, which is convenient for adjusting the load-bearing surface height of the transfer trolley and is convenient for transfer and installation.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a center cabinet transfer trolley, comprising a vehicle body and a load-bearing surface, a plurality of adjustment units slidably connected to the upper end surface of the vehicle body are installed at the four corners of the bottom surface of the load-bearing surface, the adjustment unit comprises a slide rod installed on the bottom surface of the load-bearing surface, the slide rod passes through the upper end of the vehicle body and is slidably connected thereto, a plurality of slots are provided on the side walls of the slide rod, and a limiting unit for movably plugging into the slots is installed on the upper end surface of the vehicle body, the limiting unit comprises two sliding sleeves installed on the upper surface of the vehicle body, the sliding sleeves are respectively located between the two sliding rods on the same side, two connecting plates are slidably connected in the sliding sleeves, two plug-in blocks are fixedly connected between the two connecting plates, and the two plug-in blocks are movably plugged into the slots on the two sliding rods on the same side.

[0008] Preferably, the limiting unit further comprises a connecting bar fixedly mounted between the outer ends of the two groups of connecting plates, and the outer wall of the connecting bar is threadedly connected with a second bolt.

[0009] Preferably, the limiting unit further includes a first bolt which passes through and is slidably connected to the connecting bar, and a threaded hole is provided on the outer wall of the vehicle body, and the first bolt is threadedly connected to the threaded hole.

[0010] Preferably, multiple blocks are fixedly connected between two adjacent connecting plates, multiple top blocks are fixedly connected to the upper surface of the vehicle body, two adjacent connecting plates are slidably connected on both sides of the top blocks, and a spring is fixedly connected between one side of the block and the adjacent surface of the adjacent top blocks.

[0011] Preferably, the slot is a triangular structure, the top surface of the slot is a plane, and the bottom surface of the slot is an inclined surface, and the insert is matched with the slot.

[0012] Preferably, the limiting unit further includes a threaded rod slidably connected to the slide rod, the upper end of the threaded rod is fixedly connected to the bottom surface of the bearing surface, the outer wall of the threaded rod is threadedly connected to a first nut, and the first nut is located above the slide rod.

[0013] Preferably, the limiting unit further includes a second nut threadedly connected to the outer wall of the threaded rod, and the second nut is located below the sliding rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model supports the load-bearing surface by installing a slide bar on the vehicle body, and uses a limit unit to cooperate with the slot on the slide bar to limit the slide bar, so that the height of the load-bearing surface can be quickly adjusted, and the four corners of the load-bearing surface can be raised or lowered synchronously, which improves the convenience of adjustment without causing damage to the load-bearing surface, improves practicality, and facilitates the transportation of circuit breakers in cabinets of different heights.

[0016] 2. The present invention installs a threaded rod on the slide rod, and a first nut and a second nut are threadedly connected to the threaded rod. The threaded rod is fixed to the bottom surface of the bearing surface, and the height of the bearing surface can be fine-tuned so that the inner bottom surface height of the bearing surface corresponds to the installation height of the central cabinet for installing the circuit breaker, thereby further improving practicality.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the upper end surface structure of the vehicle body of the present invention;

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 4 Detailed structural diagram of the adjustment unit and the limit unit of the utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the plug-in block of the utility model.

[0023] In the figure: 1. Vehicle body; 2. Load-bearing surface; 3. Adjustment unit; 31. Slide rod; 32. Slot; 33. Threaded rod; 34. First nut; 35. Second nut; 4. Limiting unit; 41. Insert block; 42. Connecting plate; 43. Connecting strip; 44. First bolt; 45. Slide sleeve; 46. Second bolt; 5. Spring; 6. Stop block; 7. Top block; 8. Threaded hole. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 technical field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5The central cabinet transfer trolley includes a car body 1 and a load-bearing surface 2. The four corners of the bottom surface of the load-bearing surface 2 are equipped with multiple adjustment units 3 that are slidably connected to the upper end surface of the car body 1. The adjustment unit 3 includes a slide rod 31 installed on the bottom surface of the load-bearing surface 2. The slide rod 31 passes through the upper end of the car body 1 and is slidably connected thereto. The side wall of the slide rod 31 is provided with multiple slots 32. The upper end surface of the car body 1 is equipped with a limit unit 4 for movably plugging into the slots 32. The limit unit 4 includes two sliding sleeves 45 installed on the upper surface of the car body 1. The sliding sleeves 45 are respectively located between the two sliding rods 31 on the same side. Two connecting plates 42 are slidably connected in the sliding sleeves 45. Two plug blocks 41 are fixedly connected between the two connecting plates 42. The two plug blocks 41 are respectively movably plugged into the slots 32 on the two sliding rods 31 on the same side.

[0026] like Figure 1 、 2 As shown in FIG4 , the structure of the transfer trolley in the present invention is similar to the structure of the existing transfer trolley, such as the central cabinet transfer trolley disclosed in the patent publication number CN203406540U. The main improvement of the present invention is that it is convenient to adjust the height of the load-bearing surface 2 of the transfer trolley, which is convenient for transfer and installation. When the height of the load-bearing surface 2 is adjusted according to the height of the central cabinet, the two sets of connecting plates 42 are pulled to separate the plug block 41 from the slot 32 on the slide rod 31, and the connecting plate 42 slides in the sliding sleeve 45. The sliding sleeve 45 restricts the connecting plate 42. At this time, the slide rod 31 is not restricted, and the height of the load-bearing surface 2 can be adjusted. After the adjustment is completed, the connecting plate 42 is moved back again, so that the plug block 41 is inserted into the slot 32, and then the slide rod 31 is restricted, thereby restricting the load-bearing surface 2. At this time, the circuit breaker can be placed on the load-bearing surface 2, and the vehicle body 1 is pushed, and the universal wheel under the vehicle body 1 is used to drive the circuit breaker for transfer.

[0027] like Figure 2 、 4 As shown, the limiting unit 4 also includes a connecting bar 43 fixedly installed between the outer ends of the two groups of connecting plates 42, and the outer wall of the connecting bar 43 is threadedly connected to a second bolt 46; when the second bolt 46 is moved, the second bolt 46 drives the connecting bar 43 to move, so that the connecting bar 43 can synchronously pull the two groups of connecting plates 42, and then synchronously insert the insert block 41 into the slot 32 or pull it out of the slot 32, so as to facilitate the adjustment of the height of the bearing surface 2.

[0028] like Figure 4As shown, the limiting unit 4 also includes a first bolt 44 that passes through and is slidably connected to the connecting bar 43. A threaded hole 8 is provided on the outer wall of the vehicle body 1, and the first bolt 44 is threadedly connected to the threaded hole 8; after the height adjustment of the bearing surface 2 is completed, the plug block 41 is inserted into the slot 32. At this time, the first bolt 44 can be rotated to be threadedly connected to the threaded hole 8, thereby fixing the connecting bar 43 to one side of the vehicle body 1, and cooperating with the connecting plate 42 to limit the plug block 41 so that the plug block 41 will not move, thereby ensuring the stability of the slide bar 31.

[0029] like Figure 3 When the second bolt 46 is rotated, the second bolt 46 contacts the outer wall of the vehicle body 1, thereby driving the connecting bar 43 away from the vehicle body 1 and cooperating with the connecting plate 42 to move the inserting block 41 out of the slot 32. When the connecting plate 42 moves, the stopper 6 moves, and the top block 7 fixed on the top surface of the vehicle body 1 blocks the spring 5. The moving stopper 6 compresses the spring 5. At this time, the height of the bearing surface 2 can be adjusted. After the adjustment is completed, the second bolt 46 can be rotated, and the inserting block 41 is inserted into the slot 32 under the elastic force of the spring 5, so as to limit the slide bar 31 and fix the bearing surface 2 for convenient use.

[0030] like Figure 4 、 5 As shown, the slot 32 is a triangular structure, the top surface of the slot 32 is a plane, and the bottom surface of the slot 32 is an inclined surface, and the insert block 41 is matched with the slot 32; when the bearing surface 2 needs to be raised, the bearing surface 2 can be directly lifted upward, and the bearing surface 2 drives the slide bar 31 to rise, and the inclined surface on the slot 32 slides with the inclined surface on the insert block 41, thereby driving the insert block 41 to move out of the slot 32. After sliding out of one of the slots 32, under the elastic force of the spring 5, the insert block 41 is inserted into the slot 32 located below the slot 32. When adjusting the height on the bearing surface 2, there is no need to manually pull the connecting bar 43 outward, which is convenient for adjusting the height of the bearing surface 2.

[0031] like Figure 4 As shown, the limiting unit 4 also includes a threaded rod 33 slidably connected to the slide rod 31, the upper end of the threaded rod 33 is fixedly connected to the bottom surface of the bearing surface 2, and the outer wall of the threaded rod 33 is threadedly connected to a first nut 34, and the first nut 34 is located above the slide rod 31; the first nut 34 can be rotated, and the threaded rod 33 limits the first nut 34, and the slide rod 31 is pressed under the first nut 34, thereby fine-tuning the bearing surface 2 so that the internal bottom surface height of the bearing surface 2 corresponds to the installation height of the central cabinet for installing the circuit breaker, thereby improving the accuracy and further improving the practicality.

[0032] like Figure 4 As shown, the limiting unit 4 also includes a second nut 35 threadedly connected to the outer wall of the threaded rod 33, and the second nut 35 is located below the slide rod 31; the second nut 35 is used to rest against the lower end surface of the slide rod 31, and cooperates with the first nut 34 to clamp the slide rod 31 to maintain the stability of the slide rod 31 and the bearing surface 2.

[0033] When the cam 32 is lifted up, the cam 32 is lifted up and the cam 32 is released, and the cam 32 is released, so that the cam 32 is lifted up and the cam 32 is released. The first nut 34 is then rotated so that the threaded rod 33 is restricted to the first nut 34, and the slide bar 31 is pressed against the bottom surface of the first nut 34, thereby fine-tuning the load-bearing surface 2. After the fine-tuning is completed, the second nut 35 is rotated back so that it is against the bottom surface of the slide bar 31.

[0034] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A center cabinet transfer trolley, comprising a trolley body (1) and a bearing surface (2), characterized in that: A plurality of adjustment units (3) slidably connected to the upper end surface of the vehicle body (1) are installed at the four corners of the bottom surface of the bearing surface (2). The adjustment unit (3) includes a slide bar (31) installed on the bottom surface of the bearing surface (2). The slide bar (31) passes through the upper end of the vehicle body (1) and is slidably connected thereto. A plurality of slots (32) are provided on the side wall of the slide bar (31). The upper end surface of the vehicle body (1) is installed with a limit unit (4) for movably plugging into the slots (32). The limit unit (4) includes two sliding sleeves (45) installed on the upper surface of the vehicle body (1). The sliding sleeves (45) are respectively located between the two sliding sleeves (31) on the same side. Two connecting plates (42) are slidably connected in the sliding sleeves (45). Two plug blocks (41) are fixedly connected between the two connecting plates (42). The two plug blocks (41) are respectively movably plugged into the slots (32) on the two sliding sleeves (31) on the same side.

2. The center cabinet transfer trolley according to claim 1, characterized in that: The limiting unit (4) further comprises a connecting strip (43) fixedly mounted between the outer ends of the two sets of connecting plates (42), wherein the outer wall of the connecting strip (43) is threadedly connected to a second bolt (46).

3. The center cabinet transfer trolley according to claim 1, characterized in that: The limiting unit (4) further includes a first bolt (44) that penetrates and is slidably connected to the connecting bar (43); a threaded hole (8) is provided on the outer wall of the vehicle body (1); and the first bolt (44) is threadedly connected to the threaded hole (8).

4. The center cabinet transfer trolley according to claim 2, characterized in that: A plurality of stoppers (6) are fixedly connected between two adjacent connecting plates (42), a plurality of top blocks (7) are fixedly connected to the upper surface of the vehicle body (1), two adjacent connecting plates (42) are slidably connected to both sides of the top blocks (7), and a spring (5) is fixedly connected between one side of the stopper (6) and an adjacent surface of an adjacent top block (7).

5. The center cabinet transfer trolley according to claim 4, characterized in that: The slot (32) is a triangular structure, the top surface of the slot (32) is a plane, and the bottom surface of the slot (32) is an inclined surface, and the insert (41) is matched with the slot (32).

6. The center cabinet transfer trolley according to claim 1, characterized in that: The limiting unit (4) further includes a threaded rod (33) slidably connected to the slide rod (31), the upper end of the threaded rod (33) is fixedly connected to the bottom surface of the bearing surface (2), and the outer wall of the threaded rod (33) is threadedly connected to a first nut (34), and the first nut (34) is located above the slide rod (31).

7. The center cabinet transfer trolley according to claim 1, characterized in that: The limiting unit (4) further includes a second nut (35) threadedly connected to the outer wall of the threaded rod (33), and the second nut (35) is located below the sliding rod (31).

Images