A trolley-type switch maintenance device

Abstract

The present invention discloses a maintenance device for a trolley-type switch, which includes a chassis, a movable die rod, a driver, a controller, and a positioning die rod assembly. At the left and right ends of the bottom of the front side of the chassis, support bars are respectively installed. The two groups of positioning die rod assemblies are respectively foldably installed at the left and right ends of the top of the front side of the chassis. The two movable die rods are respectively driven by the driver to move left and right or up and down on the front side of the chassis and cooperate with the two groups of positioning die rod assemblies to jointly clamp the trolley to be maintained. The controller is electrically connected to the driver. By foldably arranging the positioning die rod group on the front side of the chassis and using the driver to adjust the height and spacing of the two movable die rods, the present invention can be compatible with all sizes of trolleys of different manufacturers and models, and can not only suspend the trolley for maintenance, but also place the trolley on the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of switch maintenance, in particular to the technical field of a trolley-type switch maintenance device. Background Art

[0002] A switch cabinet is an electrical device mainly composed of a circuit breaker, an isolating switch, a load switch, an operating mechanism, an instrument transformer, and various protection devices, etc., and can switch, control, and protect electrical equipment during the processes of power generation, power transmission, power distribution, and power conversion in the power system.

[0003] With the rapid development of the power system, the number of switch cabinets is increasing. However, for existing switch cabinets from different manufacturers and models, the sizes of the internal trolleys, such as width and height, are different, making it difficult to carry and maintain them uniformly. In addition, existing maintenance devices can only move the trolley out of the switch cabinet, and manual labor is still required to place the trolley on the ground, which is very troublesome and labor-consuming. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and propose a trolley-type switch maintenance device that can be compatible with all sizes of trolleys from different manufacturers and models, can be used as a maintenance trolley, can also perform maintenance on the trolley suspended in the air, and can place the trolley on the ground.

[0005] To achieve the above purpose, the present invention provides a trolley-type switch maintenance device, including a chassis, movable die rods, a driver, a controller, and a positioning die rod assembly. At the left and right ends of the bottom of the front side of the chassis, support bars are respectively installed. The two groups of positioning die rod assemblies are respectively foldably installed at the left and right ends of the top of the front side of the chassis. The two movable die rods are respectively driven by the driver to move left and right or up and down on the front side of the chassis and cooperate with the two groups of positioning die rod assemblies to jointly clamp the trolley to be maintained. The controller is electrically connected to the driver.

[0006] Preferably, the positioning die rod assembly includes a main die rod, a first sub-die rod, a second sub-die rod, and a limiting die rod. The main die rod and the first sub-die rod are arranged one above the other and one end of each is respectively hinged to the front side of the chassis. The other end of the first sub-die rod is hinged to one end of the second sub-die rod. The other end of the second sub-die rod is hinged to the middle of the main die rod. A plurality of limiting die rods are respectively inserted into the main die rod. When the main die rod is not inserted with a limiting die rod and rotates inward until the whole rod adheres to the front side of the chassis, the first sub-die rod and the second sub-die rod can be completely received into the inner cavity of the rod body.

[0007] Preferably, the support bar and the movable mold rod are respectively perpendicular to the front side of the chassis, the main mold rod is perpendicular to the front side of the chassis when rotated outward to the maximum angle, and the limiting mold rod is parallel to the front side of the chassis when inserted on the main mold rod.

[0008] Preferably, a plurality of side bars are provided in the middle of the left and right sides of the chassis, and a plurality of latch pins are inserted into the side bars and are parallel to the limiting mold rods.

[0009] Preferably, the driver is installed in the front opening of the chassis and includes a horizontal drive assembly and a vertical drive assembly. The two groups of horizontal drive assemblies are respectively fixed on the vertical drive heads of the vertical drive assemblies so as to be driven to move up and down simultaneously. The two movable mold rods are respectively fixed on the horizontal drive heads of the two groups of horizontal drive assemblies to move away from or closer to each other horizontally. The front opening of the chassis is partially closed by a sealing plate to form two left and right openings, and the free end of the movable mold rod extends out of the chassis along the opening.

[0010] Preferably, the movable mold rod can be driven by the vertical drive assembly to move downward until it touches the ground.

[0011] Preferably, a plurality of universal wheels are installed at the bottom of the chassis.

[0012] Preferably, a pedal bracket is foldably mounted on the rear side of the chassis.

[0013] Preferably, the pedal bracket includes a pedal, a vertical pole and a telescopic foot, the two ends of the pedal are respectively hinged to the chassis and the vertical pole, the other end of the vertical pole is fixed to the telescopic foot, the pedal can be rotated inward until the entire board is attached to the rear side of the chassis, and the vertical pole can be rotated inward and drive the telescopic foot to be completely stored in the inner cavity of the pedal board.

[0014] Preferably, the pedal is perpendicular to the rear side of the chassis when it is rotated outward to a maximum angle, the upright pole is perpendicular to the ground when it is rotated outward to a maximum angle, and a handle is provided on the top of the rear side of the chassis.

[0015] Beneficial effects of the present invention:

[0016] The present invention can be compatible with all sizes of hand trucks from different manufacturers and models by foldably arranging a positioning die bar assembly at the front side of the chassis and using a driver to adjust the height and spacing of two movable die bars; by foldably arranging a stepping bracket at the rear side of the chassis and cooperating with a handle, it is convenient for maintenance personnel to operate on the top of the hand truck, and can use the weight of the maintenance personnel to prevent the chassis from tipping over, improving the stability of the chassis and further ensuring work safety; by enabling the movable die bar to move downward under the drive of a vertical drive assembly until it touches the ground, the hand truck can be transported to the ground, effectively preventing collision problems and safety problems caused by manual handling up and down, and having a high promotion and application value; by inserting a number of pins at the side bar to connect the chassis and the hand truck, it can effectively prevent the hand truck from falling from a high place when being impacted or vibrated.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the drawings. Brief Description of the Drawings

[0018] Figure 1 is the front view of a hand truck type switch maintenance device of the present invention when the positioning die bar is folded;

[0019] Figure 2 is the front view of a hand truck type switch maintenance device of the present invention when the positioning die bar is folded and the sealing plate is removed;

[0020] Figure 3 is the left view of a hand truck type switch maintenance device of the present invention when the positioning die bar is not folded.

[0021] In the figures: 1 - chassis, 11 - support bar, 12 - sealing plate, 13 - opening, 14 - handle, 15 - universal wheel, 2 - movable die bar, 3 - driver, 31 - horizontal drive assembly, 32 - vertical drive assembly, 4 - controller, 5 - positioning die bar assembly, 51 - main die bar, 52 - first support die bar, 53 - second support die bar, 54 - limit die bar, 6 - side bar, 7 - stepping bracket, 71 - pedal, 72 - vertical rod, 73 - telescopic foot. Detailed Embodiments

[0022] Refer to Figure 1 、 Figure 2 and Figure 3 A hand truck type switch maintenance device of the present invention includes a chassis 1, a movable die bar 2, a driver 3, a controller 4 and a positioning die bar assembly 5. Support bars 11 are respectively installed at the left and right ends of the bottom of the front side of the chassis 1. Two groups of the positioning die bar assemblies 5 are respectively installed at the left and right ends of the top of the front side of the chassis 1 in a foldable manner. The two movable die bars 2 are respectively driven by the driver 3 to move left and right or up and down at the front side of the chassis 1 and cooperate with the two groups of positioning die bar assemblies 5 to jointly clamp the hand truck to be maintained. The controller 4 is electrically connected to the driver 3.

[0023] The positioning die bar assembly 5 includes a main die bar 51, a first support die bar 52, a second support die bar 53 and a limit die bar 54. The main die bar 51 and the first support die bar 52 are arranged one above the other, and one ends of them are respectively hinged to the front side of the chassis 1. The other end of the first support die bar 52 is hinged to one end of the second support die bar 53. The other end of the second support die bar 53 is hinged to the middle part of the main die bar 51. A plurality of the limit die bars 54 are respectively inserted on the main die bar 51. When the main die bar 51 has no limit die bar 54 inserted and rotates inwards until the whole is attached to the front side of the chassis 1, the first support die bar 52 and the second support die bar 53 can be completely received into the inner cavity of the die bar.

[0024] The support bar 11 and the movable die bar 2 are respectively perpendicular to the front side of the chassis 1. When the main die bar 51 rotates outwards to the maximum angle, it is perpendicular to the front side of the chassis 1. When the limit die bar 54 is inserted on the main die bar 51, it is parallel to the front side of the chassis 1.

[0025] A plurality of side bars 6 are also provided at the middle parts of the left and right sides of the chassis 1. A plurality of pins are inserted on the side bars 6 and are parallel to the limit die bar 54.

[0026] The driver 3 is installed in the front opening of the chassis 1 and includes a horizontal driving component 31 and a vertical driving component 32. Two groups of the horizontal driving components 31 are respectively fixed on the vertical driving heads of the vertical driving component 32 and are thus driven to move up and down simultaneously. Two of the movable die bars 2 are respectively fixed on the horizontal driving heads of the two groups of the horizontal driving components 31 and are driven to move horizontally away from or close to each other. The front opening of the chassis 1 is partially closed by a sealing plate 12 and forms two left and right openings 13. The free ends of the movable die bars 2 extend out of the chassis 1 along the openings 13.

[0027] The movable die bar 2 can move downwards under the drive of the vertical driving component 32 until it touches the ground.

[0028] A plurality of universal wheels 15 are installed at the bottom of the chassis 1.

[0029] A pedal bracket 7 is foldably installed at the rear side of the chassis 1.

[0030] The pedal bracket 7 includes a pedal 71, a vertical rod 72 and a telescopic foot 73. The two ends of the pedal 71 are respectively hinged to the chassis 1 and the vertical rod 72. The other end of the vertical rod 72 is fixed to the telescopic foot 73. The pedal 71 can rotate inwards until the whole plate is attached to the rear side of the chassis 1. The vertical rod 72 can rotate inwards and drive the telescopic foot 73 to be completely received into the inner cavity of the plate body of the pedal 71 together.

[0031] When the pedal 71 rotates outward to the maximum angle, it is perpendicular to the rear side of the chassis 1. When the vertical rod 72 rotates outward to the maximum angle, it is perpendicular to the ground. A handle 14 is provided at the top of the rear side of the chassis 1.

[0032] Working process of the present invention:

[0033] First, rotate the pedal 71 outward to the maximum angle until it is perpendicular to the rear side of the chassis 1, rotate the vertical rod 72 outward to the maximum angle to be perpendicular to the ground, and then rotate the telescopic foot 73 until it contacts the ground. Next, rotate the main die bar 51 outward to the maximum angle, unfold the first support die bar 52 and the second support die bar 53, and then insert each limiting die bar 54 into the main die bar 51 respectively. Subsequently, according to requirements, use the horizontal driver to adjust the distance between the two movable die bars 2, and then use the vertical driver to drive the horizontal driver and the movable die bars 2 to move downward until the movable die bars 2 contact the ground. Then, place the trolley to be repaired on the movable die bars 2, and use the vertical driver to drive the horizontal driver and the movable die bars 2 to move upward until the movable die bars 2 cooperate with the limiting die bars 54 to jointly clamp the trolley. At this time, insert several pins through the side rod 6 until they are inserted into the prefabricated holes of the trolley. During the repair, if it is necessary to repair the top of the trolley, the worker can stand on the pedal 71 and operate. After the repair is completed and the trolley is put down, fold the positioning die bar assembly 5 and the stepping bracket 7 back to their original positions, and store the pulled-out limiting die bars 54 and pins in the inner cavity of the pedal 71 or the inner cavity of the rod body of the main die bar.

[0034] The above embodiments are illustrative of the present invention, not limiting of the present invention. Any simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A trolley-type switch maintenance device, characterized in that: It includes a chassis (1), a movable die rod (2), a driver (3), a controller (4) and a positioning die rod assembly (5). At the left and right ends of the bottom of the front side of the chassis (1), support bars (11) are respectively installed. The two groups of positioning die rod assemblies (5) are respectively foldably installed at the left and right ends of the top of the front side of the chassis (1). The two movable die rods (2) are respectively driven by the driver (3) to move left and right or up and down on the front side of the chassis (1) and cooperate with the two groups of positioning die rod assemblies (5) to jointly clamp the trolley to be overhauled. The controller (4) is electrically connected to the driver (3). The positioning die rod assembly (5) includes a main die rod (51), a first support die rod (52), a second support die rod (53) and a limit die rod (54). The main die rod (51) and the first support die rod (52) are arranged one above the other and one end of each is respectively hinged to the front side of the chassis (1). The other end of the first support die rod (52) is hinged to one end of the second support die rod (53). The other end of the second support die rod (53) is hinged to the middle of the main die rod (51). A number of limit die rods (54) are respectively inserted on the main die rod (51). When the main die rod (51) has no limit die rod (54) inserted and rotates inward until the whole rod adheres to the front side of the chassis (1), the first support die rod (52) and the second support die rod (53) can be completely received into the rod body cavity. A pedal bracket (7) is foldably installed at the rear side of the chassis (1). The pedal bracket (7) includes a pedal (71), a vertical rod (72) and a telescopic foot (73). The two ends of the pedal (71) are respectively hinged to the chassis (1) and the vertical rod (72). The other end of the vertical rod (72) is fixed to the telescopic foot (73). The pedal (71) can rotate inward until the whole plate adheres to the rear side of the chassis (1). The vertical rod (72) can rotate inward and drive the telescopic foot (73) to be completely received into the plate body cavity of the pedal (71).

2. The trolley-type switch maintenance device according to claim 1, characterized in that: The support bar (11) and the movable die rod (2) are respectively perpendicular to the front side of the chassis (1). When the main die rod (51) rotates outward to the maximum angle, it is perpendicular to the front side of the chassis (1). When the limit die rod (54) is inserted on the main die rod (51), it is parallel to the front side of the chassis (1).

3. The trolley-type switch maintenance device according to claim 2, characterized in that: A number of side rods (6) are also provided in the middle of the left and right sides of the chassis (1). A number of pins are inserted on the side rods (6) and are parallel to the limit die rod (54).

4. The trolley-type switch maintenance device according to claim 1, characterized in that: The said driver (3) is installed in the front opening of the chassis (1) and includes a horizontal drive assembly (31) and a vertical drive assembly (32). Two sets of the horizontal drive assemblies (31) are respectively fixed on the vertical drive heads of the vertical drive assembly (32) so as to be driven to move up and down simultaneously. Two said movable die levers (2) are respectively fixed on the horizontal drive heads of the two sets of horizontal drive assemblies (31) to be driven to move horizontally away from or close to each other. The front opening of the chassis (1) is partially closed by a sealing plate (12) and forms two left and right openings (13). The free ends of the movable die levers (2) extend out of the chassis (1) along the openings (13).

5. The handcart-type switch maintenance device according to claim 4, characterized in that: The said movable die lever (2) can move downward under the drive of the vertical drive assembly (32) until it touches the ground.

6. The trolley-type switch maintenance device according to claim 1, characterized in that: A plurality of universal wheels (15) are installed at the bottom of the said chassis (1).

7. The trolley-type switch maintenance device according to claim 1, characterized in that: When the pedal (71) rotates outward to the maximum angle, it is perpendicular to the rear side of the chassis (1). When the vertical rod (72) rotates outward to the maximum angle, it is perpendicular to the ground. A handle (14) is provided at the top of the rear side of the chassis (1).

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