Power equipment transfer trolley

Abstract

This utility model discloses a power equipment transfer trolley, including a supporting body and two guide rails for carrying power equipment. The two guide rails are arranged side by side on the supporting body along a first horizontal direction, and the distance between the two guide rails is adjustable. Positioning structures are provided between each guide rail and the supporting body to position the guide rails after adjustment. This utility model allows adjustment of the working width of the transfer trolley by adjusting the distance between the two guide rails, enabling the transfer trolley to adapt to medium-voltage switchgear of various width specifications, thereby significantly reducing the frequency of manual intervention and achieving universal transfer with "one trolley for multiple uses".

Description

Technical Field

[0001] This utility model relates to the field of power engineering, and in particular to a power equipment transfer trolley. Background Technology

[0002] In the field of power engineering, with the accelerated construction of smart grids and the large-scale grid connection of new energy power generation, medium-voltage switchgear, as the core equipment of the power distribution system, is showing a significant trend of diversified product specifications. Currently, the mainstream medium-voltage switchgear on the market includes various width specifications such as T650 / T800 / T1000 / T1200. However, existing transfer equipment generally adopts a fixed structural design, with its working width not adjustable, and can only be adapted to specific switchgear models. This rigid design exposes obvious limitations in practical applications: when faced with different cabinet specifications, maintenance personnel have to frequently manually adjust or replace the transfer equipment, which not only significantly reduces work efficiency and increases labor intensity, but also easily leads to equipment damage or safety hazards due to improper adaptation. Especially in substation renovation and expansion projects or emergency repair scenarios, this compatibility problem often becomes a key bottleneck restricting the improvement of maintenance efficiency, directly affecting the reliability of the power system and the quality of power supply services. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a power equipment transfer trolley, which, through structural improvements, can achieve width adjustment, thereby adapting to cabinet types with different width specifications.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a power equipment transfer trolley, including a supporting body and two guide rails for carrying power equipment. The two guide rails are arranged side by side on the supporting body along a first horizontal direction, and the distance between the two guide rails is adjustable. Positioning structures are provided between the two guide rails and the supporting body to position the guide rails after adjustment.

[0005] In a preferred embodiment, the system also includes a base frame with wheels at the bottom, and the support body is mounted on the base frame in a height-adjustable manner via a lifting mechanism.

[0006] In a preferred embodiment, the two guide rails are respectively slidable along the first horizontal direction or detachably mounted on the support body. The positioning structure includes at least one set of positioning components. The positioning components include a first positioning member disposed on the guide rail and a plurality of second positioning members spaced apart along the first horizontal direction on the support body. The first positioning member can selectively cooperate with any of the second positioning members. The first positioning member and the second positioning member are inserted into each other in the form of positioning holes and positioning posts.

[0007] In a preferred embodiment, the positioning component is fitted to the side of the guide rail plate, the positioning hole is a notch hole, or the positioning post is telescopic or detachable.

[0008] In a preferred embodiment, the second positioning element of at least one set of positioning components is a positioning hole, and the first positioning element includes an operating component and the positioning post. The operating component is operably disposed on the guide rail plate by pressing or pulling, and the positioning post is disposed on the operating component and is driven by the operating component to achieve extension and retraction.

[0009] In a preferred embodiment, the positioning structure includes two sets of positioning components distributed on both sides of the guide rail plate in a second horizontal direction, which is perpendicular to the first horizontal direction.

[0010] In a preferred embodiment, the two guide rails each include a support plate and a baffle. The support plate can slide along the first horizontal direction or be detachably disposed on the support body. The baffle is disposed at one end of the support plate away from the center of the support body and extends upward.

[0011] In a preferred embodiment, the lifting adjustment mechanism is a screw and worm gear lifting mechanism, which includes a fixed base, a screw, a worm gear, and a worm. The fixed base is mounted on the base frame, the screw extends vertically and its upper end is fixed to the support body, the worm extends horizontally and is rotatably connected to the fixed base around its axis, and the worm gear is rotatably connected to the fixed base around its vertical axis. The screw and worm gear are threadedly connected, and the worm gear meshes with the worm gear.

[0012] In a preferred embodiment, multiple lead screw and worm gear lifting mechanisms are provided, and the multiple lead screw and worm gear lifting mechanisms are arranged sequentially in the horizontal direction. The worm of each lead screw and worm gear lifting mechanism is coaxially fixedly connected to or integrally formed with the worm of the adjacent lead screw and worm gear lifting mechanism. The worm of one lead screw and worm gear lifting mechanism is connected to an adjusting handle for driving the worm to rotate.

[0013] In a preferred embodiment, multiple sets of guide structures are provided between the support body and the base frame to guide the lifting and lowering movement of the support body; the guide structure includes a guide bearing and a guide column that slides with the guide bearing, the guide bearing is installed on the base frame, the guide column extends in a vertical direction, and the top end of the guide column is fixed to the support body.

[0014] In a preferred embodiment, the two guide rails are respectively provided with mating pins on the same side of the second horizontal direction, which is perpendicular to the first horizontal direction; it also includes a pull rod, which is rotatably connected to the support body at a preset angle, and the rotation axis of the pull rod is located in the vertical direction. An elastic reset member is connected between the pull rod and the support body, so that when the pull rod is in the reset state, its length direction forms a non-zero angle with the second horizontal direction; one end of the pull rod and the mating pin facing the same side is provided with a slot, and the other end of the pull rod is provided with an operating handle; the support body includes an upper bracket and a lower bracket arranged vertically, the upper bracket being adjustablely mounted horizontally on the lower bracket by multiple sets of horizontal adjustment components, and the two guide rails and the pull rod being respectively disposed on the upper bracket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Because this utility model incorporates an adjustable horizontal spacing between two guide rails used to support electrical equipment on the supporting body, the working width of the transfer trolley can be adjusted by regulating the distance between the two guide rails. This allows the transfer trolley to be adapted to medium-voltage switchgear of various widths, significantly reducing the frequency of manual intervention and achieving universal transfer functionality with "one trolley, multiple uses." In particular, the positioning structure ensures the guide rails remain stable in their adjusted positions, thereby improving their operational stability.

[0017] 2. As a preferred embodiment, the support body is vertically and flexibly connected to the base frame via a lifting and adjusting mechanism, giving this invention a height adjustment function. This allows it to be compatible with switch cabinets of different heights, further improving the versatility of this invention. Specifically, the lifting and adjusting mechanism is preferably a screw and worm gear lifting mechanism, which features smooth movement, compact structure, high load capacity, and self-locking capability.

[0018] 3. The positioning assembly includes a first positioning component and a second positioning component that cooperate with each other, making the structure of the positioning assembly relatively simple and easy to adjust the guide rail plate.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the present invention is not limited to the embodiments of the power equipment transfer trolley. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0021] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0023] Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 3 ;

[0025] Figure 6 This is the front view of this utility model;

[0026] Figure 7 This is a side view of the present invention;

[0027] Figure 8 This is a top view of the present invention;

[0028] Figure 9 This is a cross-sectional view of the present invention;

[0029] Figure 10 yes Figure 9 An enlarged schematic diagram of section C;

[0030] In the diagram, 1. Support body; 11. Upper bracket; 111. Second positioning hole; 112. Second positioning post; 113. Long strip hole; 12. Lower bracket; 2. Guide rail plate; 21. Support plate; 211. Operating component; 212. First positioning post; 213. First positioning hole; 22. Baffle; 23. Connecting pin; 3. Base frame; 4. Screw and worm gear lifting mechanism; 41. Screw; 42. Worm; 43. Fixed seat; 44. Adjusting handle; 5. Guide wheel; 6. Universal wheel; 7. Pull rod; 71. Slot; 72. Guide slope; 73. Operating handle; 8. Tension spring; 9. Horizontal adjustment component; 91. Screw; 92. Knob; 93. Mounting seat; 10. Guide bearing; 20. Guide rod. Detailed Implementation

[0031] In this utility model, the terms "first," "second," etc., are used only to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and is only for the convenience of describing this utility model, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In addition, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] Please see Figures 1-10 As shown, this utility model discloses a power equipment transfer trolley, including a supporting body 1 and two guide rails 2 for carrying power equipment. The two guide rails 2 are arranged side by side on the supporting body 1 along a first horizontal direction, and the distance between the two guide rails 2 is adjustable. Positioning structures are provided between the two guide rails 2 and the supporting body 1 to position the guide rails 2 after adjustment, ensuring that the guide rails 2 are stable in the adjusted position, thereby improving the working stability of the guide rails 2.

[0034] The two guide rail plates 2 each include a support plate 21 and a baffle 22. The support plate 21 can slide along the first horizontal direction or be detachably mounted on the support body 1. The baffle 22 is located at the end of the support plate 21 away from the center of the support body 1 and extends upward. The support plate 21 is used to place electrical equipment, such as a circuit breaker, and the baffle 22 is used to achieve a side blocking and limiting function to prevent the electrical equipment from slipping laterally.

[0035] This utility model also includes a base frame 3, which has wheels at its bottom. Specifically, there are four wheels, distributed at the four corners of the bottom of the base frame 3. Two of the wheels are guide wheels 5, and the other two are swivel wheels 6. The support body 1 is vertically and vertically mounted on the base frame 3 through a lifting and adjusting mechanism, so that the height of the support body 1 can be adjusted, thereby adjusting the height of the two guide rail plates 2 to facilitate compatibility with switch cabinets of different heights.

[0036] Two guide rails 2 are respectively slidable along a first horizontal direction or removably mounted on the support body 1. The positioning structure includes at least one set of positioning components, each including a first positioning member on the guide rail 2 and multiple second positioning members on the support body 1. The multiple second positioning members are spaced apart along the first horizontal direction, and each second positioning member corresponds to a width adjustment position. In this embodiment, three second positioning members are used as an example for each set of positioning components, forming three width adjustment positions, but the number of second positioning members is not limited to this. The first positioning member can selectively cooperate with any of the second positioning members. Specifically, the first positioning member and the second positioning member are inserted into each other in the form of positioning holes and positioning posts.

[0037] Preferably, the positioning component is fitted onto the side of the guide rail plate 2, and the positioning hole is a notch hole; alternatively, the positioning post is telescopic or detachable. This design avoids the positioning component occupying space on the working surface of the guide rail plate 2 and facilitates the adjustment of the guide rail plate 2's position.

[0038] In this embodiment, the second positioning element of at least one set of positioning components is a positioning hole (the positioning hole is a full hole). The first positioning element includes an operating component and a positioning post. The operating component is operably disposed on the guide rail plate 2, and the positioning post is disposed on the operating component and is driven by the operating component to extend and retract. Specifically, when the operating component is operated, it causes the positioning post to retract, thereby exiting the corresponding positioning hole. When the operating component is released, it is reset by a return spring that cooperates with the guide rail plate 2, thereby causing the positioning post to insert into the corresponding positioning hole. In other embodiments, the positioning post is detachable.

[0039] In this embodiment, the positioning structure specifically includes two sets of positioning components, which are disposed on both sides of the guide rail plate 2 in the second horizontal direction, which is perpendicular to the first horizontal direction. Therefore, the first positioning elements of the two sets of positioning components are respectively disposed on the two side walls of the support plate 21 distributed in the second horizontal direction. In this embodiment, the first horizontal direction is the left-right direction of the support body 1, and the second horizontal direction is the front-back direction of the support body 1, but it is not limited to this.

[0040] One of the positioning components includes the aforementioned operating part and positioning post as its first positioning element, and the second positioning element includes multiple positioning holes, which are full holes, such as... Figure 1 , Figure 2 As shown. The first positioning element of another set of positioning components is a positioning hole, and the second positioning element is a positioning pin. The positioning hole is a notch; specifically, the bottom end of the positioning hole has a notch to allow the positioning pin to enter and exit the positioning hole through the notch. For ease of distinction, the positioning hole and positioning pin on the guide plate 2 are named the first positioning hole 213 and the first positioning pin 212 (e.g., ...). Figure 10 As shown, the positioning holes and positioning posts on the support body 1 are named second positioning hole 111 and second positioning post 112, respectively. Therefore, in this embodiment, the two guide rail plates 2 switch positions by picking up and placing them, but this is not limited to this. When another set of positioning components is set to have the same structure as one of the positioning components, the two guide rail plates 2 can switch positions by sliding along the first horizontal direction. Alternatively, one set of positioning structures can be set to be the same as the other set of positioning structures.

[0041] In a preferred embodiment, the lifting and adjusting mechanism is a screw and worm gear lifting mechanism 4, which includes a fixed base 43, a screw 41, a worm gear (not shown in the figure), and a worm 42. The fixed base 43 is mounted on the base frame 3. The screw 41 extends vertically and its upper end is fixed to the support body 1. The worm 42 extends horizontally and is rotatably connected to the fixed base 43 around its axis. The worm gear is rotatably connected to the fixed base 43 around its vertical axis. The screw 41 is threadedly connected to the worm gear, and the worm 42 meshes with the worm gear.

[0042] Furthermore, multiple lead screw and worm gear lifting mechanisms 4 are provided, arranged sequentially in a horizontal direction. The worm 42 of each lead screw and worm gear lifting mechanism 4 is coaxially fixedly connected to or integrally formed with the worm 42 of the adjacent lead screw and worm gear lifting mechanism 4. The lifting adjustment device also includes an adjustment handle 44, which is connected to the worm 42 to drive the worm 42 to rotate. In this embodiment, two lead screw and worm gear lifting mechanisms 4 are used as an example, but this is not a limitation. The two lead screw and worm gear lifting mechanisms 4 are arranged in a first horizontal direction, but the arrangement direction is not limited to the first horizontal direction.

[0043] In this embodiment, multiple sets of guide structures are also provided between the support body 1 and the base frame 3 to guide the lifting and lowering movement of the support body 1. Preferably, the guide structure includes a guide bearing 10 and a guide column 20 that slides with the guide bearing 10. The guide bearing 10 is installed on the base frame 3, the guide column 20 extends in the vertical direction, and the top end of the guide column 20 is fixed to the support body 1.

[0044] Two guide rail plates 2 are respectively provided with docking pins 23 on the same side of the second horizontal direction for positioning when the transfer trolley docks with the switch cabinet. This utility model also includes a pull rod 7, which is rotatably connected to the middle of the support body 1 at a preset angle, and the rotation axis of the pull rod 7 is located in the vertical direction. An elastic reset member is connected between the pull rod 7 and the support body 1, so that when the pull rod 7 is in the reset state, its length direction forms a non-zero angle with the second horizontal direction. A slot 71 is provided at one end of the pull rod 7 facing the docking pin 23, and an operating handle 73 is provided at the other end of the pull rod 7. Specifically, a slot 71 is provided at one end of the pull rod 7 facing one of the guide rail plates 2, and a guide slope 72 is provided outside the slot 71; the elastic reset member is specifically a tension spring 8, whose two ends are respectively hooked to the pull rod 7 and the support body 1, and the tension spring 8 is located on the side of the pull rod 7 facing the other guide rail plate 2. The connection point between the tension spring 8 and the pull rod 7 is located between the rotation connection point in the middle of the pull rod 7 and the operating handle. One end of the pull rod 7 is used to enter the switch cabinet and is engaged with the ribs on the inner wall of the switch cabinet using the slot 71, thereby further positioning the transfer trolley when it is docked with the switch cabinet. The support body 1 has an elongated hole 113 at each end in the second horizontal direction. The elongated hole 113 extends along the first horizontal direction, and the pull rod 7 passes through the two elongated holes 113 to limit the rotation angle of the pull rod 7.

[0045] In this embodiment, the support body 1 includes an upper bracket 11 and a lower bracket 12 arranged vertically. The upper bracket 11 is horizontally mounted on the lower bracket 12 via multiple sets of horizontal adjustment components 9. Specifically, there are four sets of horizontal adjustment components 9, arranged at the four corners. Each set of horizontal adjustment components 9 includes an adjustment knob 92, a screw 91, and a mounting base 93. The mounting base 93 is fixed to the lower bracket 12. The screw 91 extends vertically and is threaded into a threaded hole in the mounting base 93. The top of the screw 91 supports the upper bracket 11. The adjustment knob 92 is fixed to the screw 91. Rotating the adjustment knob 92 drives the screw 91 to move axially, thereby causing the upper bracket 11 to make a small displacement in the height direction to facilitate horizontal adjustment. Two guide rails 2 and a pull rod 7 are respectively disposed on the upper bracket 11. The lower bracket 12 is connected to the base frame 3 via a screw and worm gear lifting mechanism 4 and a guide structure.

[0046] This utility model discloses a power equipment transfer trolley. When adjusting the working width, first press the operating component 211 to disengage the first positioning post 212 from the second positioning hole 111 of the supporting body 1. Then, lift the entire guide rail plate 2 to disengage the first positioning hole 213 of the guide rail plate 2 from the second positioning post 112 on the supporting body 1. Next, place the guide rail plate 2 to the corresponding position of other width settings and use two sets of positioning components to position the guide rail plate 2. Therefore, by adjusting the working width, this utility model can adapt to medium-voltage switchgear of various width specifications, thereby significantly reducing the frequency of manual intervention and achieving universal transfer with "one trolley for multiple uses".

[0047] When adjusting the height, shake the adjusting handle 44 to drive the worm gear 42 to rotate. The rotation of the worm gear 42 drives the worm wheel to rotate. As the worm wheel rotates, the lead screw 41 moves axially, thereby realizing the raising or lowering of the support body 1.

[0048] The present invention relates to a power equipment transfer trolley. The parts not covered (such as the structure of the operating components) are the same as or can be implemented using existing technologies.

[0049] The above embodiments are only used to further illustrate a power equipment transfer trolley of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A power equipment transfer trolley, comprising a supporting body, characterized in that: It also includes two guide rails for supporting the power equipment. The two guide rails are arranged side by side on the support body along the first horizontal direction, and the distance between the two guide rails is adjustable. Positioning structures are provided between the two guide rails and the support body to position the guide rails after adjustment. The two guide rails are respectively detachably mounted on the support body. The positioning structure includes at least one set of positioning components. The positioning components include a first positioning member disposed on the guide rail and a plurality of second positioning members spaced apart on the support body along the first horizontal direction. The first positioning member can selectively cooperate with any of the second positioning members.

2. The power equipment transfer trolley according to claim 1, characterized in that: It also includes a base frame with wheels at the bottom, and the support body is mounted on the base frame in a height-adjustable manner via a lifting mechanism.

3. The power equipment transfer trolley according to claim 1, characterized in that: The first and second positioning components are connected by a positioning hole and a positioning post.

4. The power equipment transfer trolley according to claim 3, characterized in that: The positioning component is fitted to the side of the guide rail plate, and the positioning hole is a notch hole, or the positioning post is telescopic or detachable.

5. The power equipment transfer trolley according to claim 4, characterized in that: At least one set of positioning components has a second positioning element as a positioning hole, and the first positioning element includes an operating component and the positioning post. The operating component is operably disposed on the guide rail plate by pressing or pulling, and the positioning post is disposed on the operating component and is driven by the operating component to achieve extension and retraction.

6. The power equipment transfer trolley according to claim 3, 4, or 5, characterized in that: The positioning structure includes two sets of positioning components, which are distributed on both sides of the guide rail plate in a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction; The two guide rails each include a support plate and a baffle. The support plate can slide along the first horizontal direction or be detachably mounted on the support body. The baffle is located at one end of the support plate away from the center of the support body and extends upward.

7. The power equipment transfer trolley according to claim 2, characterized in that: The lifting and adjusting mechanism is a screw and worm gear lifting mechanism, which includes a fixed base, a screw, a worm gear, and a worm. The fixed base is installed on the base frame. The screw extends vertically and its upper end is fixed to the support body. The worm extends horizontally and is rotatably connected to the fixed base around its axis. The worm gear is rotatably connected to the fixed base around its vertical axis. The screw and worm gear are threadedly connected, and the worm meshes with the worm gear.

8. The power equipment transfer trolley according to claim 7, characterized in that: The screw and worm gear lifting mechanism is provided in multiple ways, and the multiple screw and worm gear lifting mechanisms are arranged sequentially in the horizontal direction. The worm of each screw and worm gear lifting mechanism is coaxially fixed to or integrally formed with the worm of the adjacent screw and worm gear lifting mechanism. The worm of one screw and worm gear lifting mechanism is connected to an adjusting handle for driving the worm to rotate.

9. The power equipment transfer trolley according to claim 2, characterized in that: Multiple sets of guide structures are provided between the support body and the base frame to guide the lifting and lowering movement of the support body; the guide structure includes a guide bearing and a guide column that slides with the guide bearing, the guide bearing is installed on the base frame, the guide column extends in the vertical direction, and the top end of the guide column is fixed to the support body.

10. The power equipment transfer trolley according to claim 1, characterized in that: The two guide rails are respectively provided with docking pins on the same side of the second horizontal direction, which is perpendicular to the first horizontal direction; it also includes a pull rod, which is rotatably connected to the support body at a preset angle, and the rotation axis of the pull rod is located in the vertical direction. An elastic reset member is connected between the pull rod and the support body, so that when the pull rod is in the reset state, its length direction forms a non-zero angle with the second horizontal direction; one end of the pull rod and the docking pin facing the same side is provided with a slot, and the other end of the pull rod is provided with an operating handle; the support body includes an upper bracket and a lower bracket arranged vertically, the upper bracket being adjustablely mounted horizontally on the lower bracket through multiple sets of horizontal adjustment components, and the two guide rails and the pull rod are respectively disposed on the upper bracket.

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