Installation auxiliary device and construction installation method of power distribution cabinet

Abstract

The invention provides an installation auxiliary device of a power distribution cabinet and a construction installation method. The device comprises a U-shaped table capable of braking rollers, a supporting assembly, a supporting column, an L-shaped piece, a transverse moving mechanism, a driving rod and a quick release structure. The top of the L-shaped piece is connected with a hanging ring at the top of the cabinet body through a quick release structure; when the driving rod moves, the bottom of the L-shaped piece is lifted, and meanwhile the L-shaped piece rotates around the supporting assembly. Therefore, the cabinet body is hung through the L-shaped piece, and the cabinet body is stably switched between the vertical state and the horizontal state in cooperation with the driving of the transverse moving mechanism, so that the azimuth requirements of the mounting (vertical state) of the circuit breaker bracket and the assembling (horizontal state) of the instrument desk can be met, and the assembling smoothness is improved. The cabinet body is connected through the top hanging ring and the quick release structure, so that the falling risk of the cabinet body is effectively avoided, and the personal safety and the equipment integrity are guaranteed; and meanwhile, the problems that the surface of the cabinet body is collided and internal elements are vibrated and displaced due to the fact that a hoisting belt is easy to slip during hoisting in the past are solved.

Description

Technical Field

[0001] This invention relates to the field of cabinet installation technology, specifically to an auxiliary device for the installation of power distribution cabinets and a construction and installation method thereon. Background Technology

[0002] A cabinet is the final-level equipment in a power distribution system, encompassing various types such as power cabinets, lighting cabinets, and metering cabinets. It is also a general term for motor control centers. Cabinets are suitable for situations with dispersed loads and fewer circuits, while motor control centers are suitable for situations with concentrated loads and more circuits. The core function of both is to distribute electrical energy from a circuit of the upstream power distribution equipment to the nearest load and to provide protection, monitoring, and control functions for that load. The structure of a standard cabinet mainly includes the cabinet body, an instrument panel integrating intelligent monitoring devices, and brackets for assembling circuit breakers. During the actual installation of the cabinet, due to limitations in its structural design and assembly process, the following technical challenges commonly exist, severely impacting assembly efficiency and safety; Firstly, for ease of operation, intelligent monitoring devices are typically welded to the upper side of the cabinet, requiring the cabinet to be laid flat during assembly. If the cabinet is in a vertical position, on the one hand, manual or mechanical assistance is needed to support the instrument panel, increasing additional operating costs and complexity; on the other hand, it is difficult to ensure precise alignment between the cabinet and the instrument panel in a vertical position, which can easily lead to assembly accuracy deviations and affect subsequent performance. Secondly, when installing circuit breaker brackets, the cabinet in a horizontal position has significant drawbacks: operators need to repeatedly adjust the working angle around the cabinet, making it difficult to quickly position and install the bracket; while when the cabinet is vertical, the convenience and efficiency of bracket installation are significantly improved. This leads to a conflict between the bracket installation and the aforementioned requirements for the cabinet placement in the instrument panel assembly. Therefore, based on the above two points, the cabinet installation process needs to enable switching between vertical and horizontal states. Currently, the industry mostly uses manual labor with simple lifting tools to adjust the cabinet's posture. However, due to the considerable weight of some cabinets, manual flipping is labor-intensive, cumbersome, poses significant safety hazards, and has low work efficiency. Therefore, there is an urgent need for a construction method and device that can achieve stable and safe cabinet flipping to solve the aforementioned defects in existing technologies. Summary of the Invention

[0003] The purpose of this invention is to provide an auxiliary device for the installation of power distribution cabinets and a construction and installation method, which at least does not have any of the disadvantages mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an installation auxiliary device for a power distribution cabinet, comprising a U-shaped platform with brakeable rollers, a support assembly disposed on the top of the U-shaped platform, an L-shaped component rotatably connected to a support column of the support assembly, and a drive rod connected to the U-shaped platform via a lateral moving mechanism; the bottom of the L-shaped component is rotatably connected to one end of the drive rod; the top of the cabinet is provided with several lifting rings, and the top of the L-shaped component is connected to the lifting rings via a quick-release structure; the minimum width of the opening on the U-shaped platform is greater than the width of the cabinet; when the lateral moving mechanism drives the drive rod to move, the bottom of the L-shaped component is raised while the L-shaped component rotates around the support assembly.

[0005] Furthermore, the support assembly includes a fixed column fixed to the U-shaped platform and a support column slidably connected to the fixed column, wherein the inner bottom of the fixed column and the inner top of the support column are connected by a first spring. A support block is fixed to the top of the support column, and a rotating clamping plate is fixed to the L-shaped part. The rotating clamping plate is rotatably connected to the support sleeve in the support block through a rotating shaft. A limiting sleeve is fixed to the rotating clamping plate, and a limiting component is provided between the limiting sleeve and the support sleeve. The rotating shaft is located inside the limiting sleeve.

[0006] Furthermore, the limiting component includes a limiting post fixed to the outer wall of the support sleeve, a pull ring indexing pin fixed to the outer wall of the limiting sleeve, and an arc-shaped limiting groove provided inside the limiting sleeve and cooperating with the limiting post. The limiting post is provided with a limiting hole. When the L-shaped part is in a vertical state, the spring of the pull ring indexing pin is inserted into the limiting hole.

[0007] Furthermore, the limiting post has a notch on the side near the arc-shaped limiting groove. The height of the notch is less than the depth of the limiting hole, and the width of the notch is greater than the diameter of the projectile. When the L-shaped part rotates, the projectile passes through the notch and enters the arc-shaped limiting groove.

[0008] Furthermore, the support assembly also includes a fixed rod fixed to the fixed column, a pressure plate mounted on the support column, a connecting rod rotatably connected to the pressure plate, and a first slider and a second slider slidably connected to the fixed rod; the end of the fixed rod is fixed to the U-shaped platform through a mounting block, and the end of the connecting rod away from the pressure plate is rotatably connected to the first slider; the first slider and the second slider, and the second slider and the mounting block are both connected by a second spring.

[0009] Furthermore, the drive rod is rotatably connected to the drive block at the output end of the transverse moving mechanism, and a first screw is rotatably connected to the mounting block. A second screw in the transverse moving mechanism, which is threadedly connected to the drive block, is connected to the first screw through a gear transmission group. An active block is threadedly connected to the first screw, and the active block is slidably connected to the U-shaped platform. A passive block is provided on the second slider, and the gear transmission group is a reduction gear group. When the L-shaped component is in a vertical position, there is a preset distance between the active block and the passive block; and during the rotation of the second screw, after the active block moves a distance exceeding the preset distance, it will push the passive block to move away from the support column.

[0010] Furthermore, the drive rod is a telescopic rod, and the drive block is provided with an L-shaped push rod; When the L-shaped component is in a vertical position, there is a transition gap between the driving block and the mounting block, and the telescopic rod is in its shortest state. The L-shaped push rod abuts against the passive block on the side near the support column, and the L-shaped push rod is located above the active block.

[0011] Furthermore, the quick-release structure includes several fixing ears that are fixedly connected to the L-shaped piece, and the limiting rod is bolted to the fixing ears after passing through both the fixing ears and the lifting ring.

[0012] Furthermore, the opening of the U-shaped platform is provided with several mounting platforms. The distance between two mounting platforms symmetrically distributed along the U-shaped platform is greater than the width of the cabinet. The mounting platforms are provided with mounting holes, and the mounting holes are detachably connected to reinforcing ribs by magnetic attraction. The two supporting columns of the U-shaped platform are provided with insertion interfaces.

[0013] The present invention also provides a construction and installation method for a power distribution cabinet, which, based on the above-mentioned installation auxiliary device for the power distribution cabinet, includes the following steps: S1: Place the cabinet vertically, then move the U-shaped platform. The cabinet will move through the opening of the U-shaped platform to the bottom of the L-shaped piece. S2: Lift the cabinet and connect the top of the cabinet to the top of the L-shaped bracket, then the bracket can be installed; S3: After the bracket is installed, the lateral moving mechanism will drive the drive rod to move, so that the L-shaped part rotates around the support assembly until the L-shaped part is in a horizontal state, and then the instrument panel can be installed. S4: After installation, keep the L-shaped parts horizontal and use a forklift to lift the installed cabinet and U-shaped platform onto the transport vehicle by inserting them into the connector. S6: When the transport vehicle arrives at its destination, the cabinet and U-shaped platform are removed from the transport vehicle by a forklift, and then the U-shaped platform is pushed to move the cabinet to the installation position; S7: When the cabinet is moved to the installation position via the U-shaped platform, the lateral movement mechanism will drive the drive rod to move in the opposite direction, so that the L-shaped part rotates around the support component until the L-shaped part is in a vertical state; S8: After fine-tuning the position of the U-shaped platform, step on the brake, and then you can remove the cabinet from the L-shaped piece for subsequent installation work.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses an L-shaped suspension unit to suspend the cabinet, and a lateral movement mechanism to smoothly switch the cabinet between vertical and horizontal positions. This satisfies the orientation requirements of both circuit breaker bracket installation (vertical state) and instrument panel assembly (horizontal state), resolving the conflict in assembly orientation and improving assembly smoothness. Furthermore, the use of a top lifting ring and quick-release structure to connect the cabinet effectively avoids the risk of the cabinet falling, ensuring the personal safety of operators and the integrity of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partially enlarged schematic diagram of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a cross-sectional view of the arc-shaped limiting groove in this invention; Figure 5 A schematic diagram of the structure after the supporting sleeve and the limiting sleeve are hidden; Figure 6 This is an enlarged schematic diagram of the quick-release structure connection.

[0017] The components are as follows: 1. L-shaped component; 2. Cabinet body; 3. Limiting sleeve; 4. Opening; 5. Insertion interface; 6. Support column; 7. Fixing column; 8. Connecting rod; 9. U-shaped platform; 10. Quick-release structure; 11. Mounting block; 12. Second slider; 13. Limiting protrusion; 14. Fixing rod; 15. First slider; 16. L-shaped push rod; 17. Second spring; 18. Driving block; 19. Second screw; 20. Gear transmission assembly; 21. Pressure plate; 22. Drive rod; 23. Drive block; 24. Limiting rod; 25. First screw; 26. Support block; 27. Supporting sleeve; 28. Pull ring indexing pin; 29. ​​First spring; 30. Arc-shaped limiting groove; 31. Spring head; 32. Notch; 33. Fixing ear; 34. Lifting ring. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] Example Currently, the cabinet structure mainly includes the cabinet body, the instrument panel integrating intelligent monitoring devices, and the bracket for assembling circuit breakers. During the actual installation of the cabinet, due to limitations in its structural design and assembly process, the following technical challenges commonly exist, severely affecting assembly efficiency and safety; Firstly, for ease of operation, intelligent monitoring devices are typically welded to the upper side of the cabinet, requiring the cabinet to be laid flat during assembly. If the cabinet is in a vertical position, on the one hand, manual or mechanical assistance is needed to support the instrument panel, increasing additional operating costs and complexity; on the other hand, it is difficult to ensure precise alignment between the cabinet and the instrument panel in a vertical position, which can easily lead to assembly accuracy deviations and affect subsequent performance. Secondly, when installing circuit breaker brackets, the cabinet in a horizontal position has significant drawbacks: operators need to repeatedly adjust the working angle around the cabinet, making it difficult to quickly position and install the bracket; while when the cabinet is vertical, the convenience and efficiency of bracket installation are significantly improved. This leads to a conflict between the bracket installation and the aforementioned requirements for the cabinet placement in the instrument panel assembly. Therefore, based on the above two points, it is necessary to switch between vertical and horizontal states during cabinet installation. Currently, the industry mostly uses manual labor with simple lifting tools to adjust the cabinet's posture. However, due to the large weight of some cabinets, manual flipping has problems such as high labor costs, cumbersome operation, significant safety hazards, and low work efficiency.

[0020] Therefore, based on the above issues, please refer to... Figures 1-6This invention discloses an installation auxiliary device for a power distribution cabinet, including a U-shaped platform 9 with brakeable rollers, a support assembly on top of the U-shaped platform 9, an L-shaped component 1 rotatably connected to a support column 6 of the support assembly, and a drive rod 22 connected to the U-shaped platform 9 via a lateral moving mechanism. The bottom of the L-shaped component 1 is rotatably connected to one end of the drive rod 22. The top of the cabinet 2 is provided with several lifting rings 34, and the top of the L-shaped component 1 is connected to the lifting rings 34 via a quick-release structure 10, avoiding damage to the cabinet 2 caused by the previous clamping method. The minimum width of the opening 4 on the U-shaped platform 9 is greater than the width of the cabinet 2, allowing the cabinet 2 to be moved into the middle of the U-shaped platform 9, improving the stability of the cabinet 2 during rotation. When the lateral moving mechanism drives the drive rod 22 to move, the bottom of the L-shaped component 1 rises simultaneously with the L-shaped component 2. L-shaped component 1 rotates around the support assembly. The lateral movement mechanism can be a common screw and nut mechanism. In use, the cabinet 2 is first placed vertically, then the U-shaped platform 9 is moved, and then the cabinet 2 is moved through the opening 4 of the U-shaped platform 9 to the bottom of L-shaped component 1. Then, the lifting ring 34 on the top of the cabinet 2 is connected to the top of L-shaped component 1, and then the bracket can be installed. After the bracket is installed, the lateral movement mechanism will drive the drive rod 22 to move, so that L-shaped component 1 rotates around the support assembly until L-shaped component 1 is in a horizontal state, and then the instrument panel can be installed. Therefore, when flipping the cabinet 2, which has a large weight, this invention eliminates the problem of high manpower and low work efficiency of the previous manual flipping method, and also avoids the risk of falling.

[0021] Furthermore, as the core power distribution equipment of the power system, the power distribution cabinet is large and heavy, with precise internal components and complex wiring. Therefore, to avoid component displacement and loosening of wiring caused by vertical placement during transportation, the distribution cabinet is usually transported horizontally after leaving the factory. After arriving at the installation site (such as the power distribution room or equipment room), the horizontal distribution cabinet needs to be flipped to an vertical position before subsequent operations such as base fixing and wiring can be performed. However, existing flipping methods mostly use forklifts with lifting straps or manual prying to assist in flipping: when lifting with a forklift, the lifting straps are prone to slipping, causing the cabinet surface to be bumped and the internal components to vibrate and shift; manual flipping is labor-intensive, requires multiple people to work together, and the flipping speed is difficult to control, which easily leads to the risk of the cabinet tipping over. Therefore, based on the above problems, in an optional embodiment, the two supporting columns of the U-shaped platform 9 in this invention are provided with insertion interfaces 5; thus facilitating the insertion of the forklift. Therefore, after the cabinet 2 is installed in both vertical and horizontal positions using this device, when it needs to be transported to the installation site, the drive rod 22 is moved by the lateral movement mechanism, causing the L-shaped component 1 to rotate around the support assembly until the L-shaped component 1 is horizontal. Then, the forklift can insert into the insertion interface 5 to transfer the installed cabinet 2 and U-shaped platform 9 to the transport vehicle. Once the transport vehicle reaches its destination, the forklift removes the cabinet 2 and U-shaped platform 9 from the transport vehicle, and then pushes the U-shaped platform 9 to move the cabinet 2 to the installation position. During this process, the center of gravity of the cabinet 2... The low speed and quick movement of the cabinet 2 improve transport efficiency. When the cabinet 2 is moved to the installation site via the U-shaped platform 9, the lateral movement mechanism drives the drive rod 22 to move in the opposite direction, causing the L-shaped component 1 to rotate around the support assembly until the L-shaped component 1 is vertical. After fine-tuning the position of the U-shaped platform 9, the brake is applied, and the cabinet 2 can then be removed from the L-shaped component 1 for subsequent installation. This achieves convenient and fast operation of the entire process from assembly to installation of the cabinet 2, eliminating the problems of slippage of the hoisting sling and concentrated stress points on the cabinet 2 during previous hoisting, which caused the surface of the cabinet 2 to be bumped and the internal components to vibrate and shift. In addition, manual turning is labor-intensive, requires multiple people to work together, and the turning speed is difficult to control, which is prone to the risk of the cabinet 2 tipping over.

[0022] In addition, several mounting platforms are provided on the opening 4 of the U-shaped platform 9. The distance between two mounting platforms symmetrically distributed along the U-shaped platform 9 is greater than the width of the cabinet 2. The mounting platforms are provided with mounting holes, and reinforcing ribs are detachably connected to the mounting holes by magnetic attraction. During transportation, the reinforcing ribs will improve the overall strength of the U-shaped platform 9 and improve the support quality for the cabinet 2. The detachable design facilitates the movement of the cabinet 2 and reduces the distance that workers need to carry the cabinet 2.

[0023] In one embodiment, the support assembly includes a fixed column 7 fixed to the U-shaped platform 9 and a support column 6 slidably connected to the fixed column 7. The inner bottom of the fixed column 7 and the inner top of the support column 6 are connected by a first spring 29. This provides buffering, absorbs the impact force during the flipping and bearing process, protects the support assembly and the cabinet 2 structure, and improves the overall stability of the device. The elastic coefficient of the first spring 29 is determined according to the total weight of the cabinet 2, ensuring that after the cabinet 2 is fully installed, when the cabinet 2 is connected to the L-shaped component 1, there is a rotation gap between the cabinet 2 and the ground, thus facilitating the rotation of the cabinet 2. The top of the support column 6 is fixed with a support... A rotating clamping plate is fixedly connected to the support block 26 and the L-shaped part 1. The rotating clamping plate is rotatably connected to the support sleeve 27 in the support block 26 via a rotating shaft. A limiting sleeve 3 is fixedly connected to the rotating clamping plate. A limiting component is provided between the limiting sleeve 3 and the support sleeve 27. The rotating shaft is located inside the limiting sleeve 3, thereby realizing the rotation of the L-shaped part 1. The limiting component is used to limit the rotation of the L-shaped part 1 from 0° to 90°. The rotation connection can be made by bearing connection. The rotating clamping plate prevents the cabinet 2 from swaying back and forth. In addition, a movable clamping plate can be set on the rotating clamping plate by bolt connection to further adapt to cabinets 2 of different sizes.

[0024] In one embodiment, the limiting assembly includes a limiting post fixed to the outer wall of the support sleeve 27, a pull ring indexing pin 28 fixed to the outer wall of the limiting sleeve 3, and an arc-shaped limiting groove 30 located inside the limiting sleeve 3 and cooperating with the limiting post. The limiting post has a limiting hole. When the L-shaped part 1 is in a vertical state, the tip 31 of the pull ring indexing pin 28 is inserted into the limiting hole, thereby ensuring the stability of the vertically installed L-shaped part 1 while allowing the L-shaped part 1 to rotate between 0° and 90°. When it is necessary to rotate the L-shaped part 1, it is only necessary to pull the pull ring of the pull ring indexing pin 28 to release the tip. 31 can be pulled out from the limiting hole; while the limiting post has a notch 32 on the side near the arc-shaped limiting groove 30. The height of the notch 32 is less than the depth of the limiting hole, and the width of the notch 32 is greater than the diameter of the bullet 31; when the L-shaped part 1 rotates, the bullet 31 passes through the notch 32 and enters the arc-shaped limiting groove 30, which facilitates the automatic locking of the bullet 31 when the cabinet 2 rotates from the horizontal state to the vertical state. It can ensure the stability of the vertical state of the L-shaped part 1 without manual intervention; it improves the smoothness of the L-shaped part 1 flipping, reduces structural wear, and further ensures the flipping efficiency and service life of the device.

[0025] In one embodiment, the support assembly further includes a fixed rod 14 fixed to the fixed column 7, a pressure plate 21 mounted on the support column 6, a connecting rod 8 rotatably connected to the pressure plate 21, and a first slider 15 and a second slider 12 slidably connected to the fixed rod 14. The end of the fixed rod 14 is fixed to the U-shaped platform 9 via a mounting block 11, and the end of the connecting rod 8 away from the pressure plate 21 is rotatably connected to the first slider 15. The first slider 15 and the second slider 12, as well as the second slider 12 and the mounting block 11, are connected by a second spring 17, which, in conjunction with the first spring 29, distributes the weight of the cabinet 2, forming a multi-level elastic buffer structure. When the support column 6 is subjected to force, the pressure plate 21 and the connecting rod 8 drive the slider to move, compressing the second spring 17 to achieve buffering, absorbing the impact force during the flipping and bearing process, protecting the support assembly and the structure of the cabinet 2, and further improving the overall stability of the device.

[0026] In other embodiments, the drive rod 22 is rotatably connected to the drive block 23 at the output end of the transverse moving mechanism. A first screw 25 is rotatably connected to the mounting block 11. A second screw 19, which is threadedly connected to the drive block 23 in the transverse moving mechanism, is connected to the first screw 25 through a gear transmission group 20. An active block 18 is threadedly connected to the first screw 25. The active block 18 is slidably connected to the U-shaped platform 9. A passive block is provided on the second slider 12. When the L-shaped part 1 is in a vertical state, there is a preset distance between the active block 18 and the passive block. The gear transmission group 20 is a reduction gear group. The preset distance is determined by the maximum rotation radius of the cabinet 2 to prevent the L-shaped part 1 from getting stuck on the ground. During the rotation of the second screw 19, after the active block 18 moves a distance exceeding the preset distance, it will push the passive block to move away from the support column 6, thereby realizing that the L-shaped part 1 rotates and descends at the same time, thereby lowering the center of gravity of the cabinet 2, improving the stability during assembly and transportation, facilitating construction by workers, and thus improving the construction quality.

[0027] Furthermore, the design of the preset spacing is to balance the rotation and descent of the cabinet 2. The moving distance of the drive block 23 is usually greater than the moving distance of the active block 18. If the active block 18 and the passive block are made to collide at the beginning, the cabinet 2 will rotate and descend at the same time, which may easily cause the cabinet 2 to jam with the ground. Since the addition of the drive rod 22 during the rotation of the cabinet 2 will reduce the force acting on the support column 6, it may cause the cabinet 2 to move upward. Therefore, in other embodiments, the fixed rod 14 is provided with a limiting protrusion 13 to prevent the cabinet 2 from moving upward too much. At the same time, it works with the active block 18 to push the passive block to release the force of the second spring 17 on the connecting rod 8, thereby increasing the force on the first spring 29, and thus realizing the lowering of the center of gravity of the cabinet 2. This avoids the instability during installation and transportation caused by the upward movement of the center of gravity of the cabinet 2 due to the introduction of the spring as a buffer and shock absorption structure.

[0028] In one embodiment, the drive rod 22 is a telescopic rod, and the drive block 23 is provided with an L-shaped push rod 16. When the L-shaped part 1 is in a vertical state, there is a transition gap between the drive block 23 and the mounting block 11, and the telescopic rod is in its shortest state (it cannot be compressed at this time, thus satisfying the stable drive for the subsequent rotation of the L-shaped part 1). The L-shaped push rod 16 abuts against the side of the passive block near the support column 6. The L-shaped push rod 16 is located above the active block 18. When the cabinet 2 is transported to the installation site and returns from a horizontal state to a vertical state and needs to be lowered, it is only necessary to drive the drive block 23 to move away from the support column 6. At this time, the drive rod 22 extends, and the second slider 12 moves away from the support column 6, thereby releasing the second spring 17, thereby increasing the force of the L-shaped part 1 on the first spring 29. At this time, since the cabinet 2 is in a vertical state, Furthermore, since the bullet head 31 is inserted into the limiting hole, the cabinet 2 will move vertically downward. During the vertical downward movement, the telescopic rod 22 will retract or extend to adapt to the vertical downward movement of the cabinet 2, preventing the drive rod 22 from obstructing the vertical downward movement of the cabinet 2. When the cabinet 2 moves to contact the ground, the cabinet 2 can be locked to the ground. After the installation is completed, the quick-release structure 10 can be removed, thereby separating the cabinet 2 from the L-shaped part 1. This achieves the removal of the cabinet 2 from the L-shaped part 1 without handling. At the same time, the above operation process can also be referred to when installing the cabinet 2 and the L-shaped part 1. Simply move the U-shaped platform 9, move the vertical cabinet 2 into the middle of the U-shaped platform 9 and place it inside the L-shaped part 1, and then drive the drive block 23 to move away from the support column 6, so that the cabinet 2 moves vertically downward. The quick-release structure 10 includes several fixed ears 33 that are fixedly connected to the L-shaped part 1. The limiting rod 24 passes through the fixed ears 33 and the lifting ring 34 at the same time and is locked to the fixed ears 33 by bolts, thereby realizing the quick release of the lifting ring 34 and the fixed ears 33.

[0029] The present invention also provides a construction and installation method for a power distribution cabinet, which, based on the above-mentioned installation auxiliary device for the power distribution cabinet, includes the following steps: S1: Place cabinet 2 vertically, then move U-shaped platform 9. Cabinet 2 will move through opening 4 of U-shaped platform 9 to below L-shaped component 1. S2: Lift cabinet 2 and connect the lifting ring 34 at the top of cabinet 2 to the top of L-shaped piece 1, then the bracket can be installed; S3: After the bracket is installed, the lateral moving mechanism will drive the drive rod 22 to move, so that the L-shaped part 1 rotates around the support assembly until the L-shaped part 1 is in a horizontal state, and then the instrument panel can be installed. S4: After installation, keep the L-shaped part 1 horizontal and use a forklift to insert the connector 5 to lift the installed cabinet 2 and U-shaped platform 9 onto the transport vehicle. S6: When the transport vehicle arrives at the destination, the cabinet 2 and the U-shaped platform 9 are removed from the transport vehicle by a forklift, and then the U-shaped platform 9 is pushed to move the cabinet 2 to the installation position; S7: When the cabinet 2 is moved to the installation position via the U-shaped platform 9, the lateral moving mechanism will drive the drive rod 22 to move in the opposite direction, so that the L-shaped part 1 rotates around the support assembly until the L-shaped part 1 is in a vertical state. S8: After fine-tuning the position of the U-shaped platform 9, step on the brake. Then, the cabinet 2 can be removed from the L-shaped part 1 for subsequent installation work.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An installation aid for an electrical power distribution cabinet, characterized in that The utility model provides a kind of cabinet lifting device, including the U-shaped table (9) with the step-on brake roller, support assembly being equipped in the top of the U-shaped table (9), L-shaped piece (1) being rotatably connected on the support column (6) of the support assembly and drive rod (22) being connected on the U-shaped table (9) by transverse moving mechanism, the bottom of the L-shaped piece (1) is rotatably connected with one end of the drive rod (22);The top of cabinet body (2) is equipped with several lifting rings (34), and the top of the L-shaped piece (1) is connected with the lifting ring (34) by quick release structure (10);The minimum width in the opening (4) of the U-shaped table (9) is greater than the width size of the cabinet body (2);When the transverse moving mechanism drives the drive rod (22) to move, the L-shaped piece (1) bottom elevates while the L-shaped piece (1) rotates around the support assembly.

2. The installation aid for electrical power distribution cabinets according to claim 1, characterized in that The support assembly includes a fixed column (7) fixed to the U-shaped table (9) and the support column (6) slidably connected to the fixed column (7), the inner bottom of the fixed column (7) and the inner top of the support column (6) are connected by a first spring (29); The top of the support column (6) is fixed with a support block (26), a rotating clamp plate is fixed on the L-shaped piece (1), the rotating clamp plate is rotatably connected with a support sleeve (27) in the support block (26) through a rotating shaft, a limiting sleeve (3) is fixed on the rotating clamp plate, a limiting assembly is arranged between the limiting sleeve (3) and the support sleeve (27), and the rotating shaft is located inside the limiting sleeve (3).

3. The installation aid for electrical power distribution cabinets as claimed in claim 2, characterized in that The limiting assembly includes a limiting column fixed to the outer wall of the support sleeve (27), a pull ring indexing pin (28) fixed to the outer wall of the limiting sleeve (3), and an arc-shaped limiting groove (30) arranged inside the limiting sleeve (3) and matched with the limiting column, a limiting hole is arranged on the limiting column, and when the L-shaped piece (1) is in a vertical state, the bullet (31) of the pull ring indexing pin (28) is inserted into the inside of the limiting hole.

4. The installation aid for electrical power distribution cabinets according to claim 3, characterized in that The limiting column is provided with a notch (32) near one side of the arc-shaped limiting groove (30), the height of the notch (32) is less than the depth of the limiting hole, and the width of the notch (32) is greater than the diameter of the bullet (31); when the L-shaped piece (1) rotates, the bullet (31) passes through the notch (32) and enters the arc-shaped limiting groove (30).

5. The installation aid for electrical power distribution cabinets according to claim 4, characterized in that The support assembly further includes a fixed rod (14) fixed to the fixed column (7), a pressing plate (21) mounted on the support column (6), a connecting rod (8) rotatably connected with the pressing plate (21), and a first sliding block (15) and a second sliding block (12) slidably connected with the fixed rod (14); the end of the fixed rod (14) is fixed to the U-shaped table (9) through a mounting block (11), one end of the connecting rod (8) away from the pressing plate (21) is rotatably connected with the first sliding block (15); the first sliding block (15) and the second sliding block (12) are connected by a second spring (17), and the second sliding block (12) and the mounting block (11) are connected by a second spring (17).

6. The installation aid for electrical power distribution cabinets as claimed in claim 5, characterized in that The driving rod (22) is rotationally connected to the driving block (23) at the output end of the transverse moving mechanism, the first screw rod (25) is rotationally connected to the mounting block (11), the second screw rod (19) of the transverse moving mechanism which is threadedly connected with the driving block (23) is connected with the first screw rod (25) through the gear transmission set (20), the driving block (18) is threadedly connected to the first screw rod (25), the driving block (18) is slidingly connected with the U-shaped table (9), and the passive block is arranged on the second sliding block (12). The gear transmission set (20) is a speed reduction gear set, there is a preset interval between the driving block (18) and the passive block when the L-shaped piece (1) is in the vertical state, and the driving block (18) moves beyond the preset interval to push the passive block to move away from the support column (6) during the rotation of the second screw rod (19).

7. The installation aid for electrical power distribution cabinets according to claim 6, characterized in that The driving rod (22) is a telescopic rod, and the L-shaped push rod (16) is arranged on the driving block (23). When the L-shaped piece (1) is in the vertical state, there is a transition interval between the driving block (23) and the mounting block (11), and the telescopic rod is in the shortest state, the L-shaped push rod (16) is in abutment with the passive block on the side close to the support column (6), and the L-shaped push rod (16) is located above the driving block (18).

8. The installation aid for electrical power distribution cabinets according to claim 1, characterized in that The quick release structure (10) comprises a plurality of fixed ears (33) fixedly connected with the L-shaped piece (1), and the limiting rod (24) is locked on the fixed ear (33) by bolt connection after penetrating through the fixed ear (33) and the lifting ring (34) at the same time.

9. The installation aid for electrical power distribution cabinets according to claim 1, characterized in that A plurality of mounting tables are arranged on the opening (4) of the U-shaped table (9), the distance between the two mounting tables symmetrically distributed along the symmetry plane of the U-shaped table (9) is greater than the width dimension of the cabinet body (2), mounting holes are arranged on the mounting tables, the mounting holes are detachably connected with the reinforcing rib plates in a magnetic attraction manner, and plug-in interfaces (5) are arranged on the two receiving columns of the U-shaped table (9).

10. A construction installation method of a power distribution cabinet based on the installation aid of the power distribution cabinet according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: S1: vertically placing the cabinet body (2), then moving the U-shaped table (9), and moving the cabinet body (2) through the opening (4) of the U-shaped table (9) to the lower side of the L-shaped piece (1); S2: lifting the cabinet body (2), connecting the lifting ring (34) at the top of the cabinet body (2) with the top of the L-shaped piece (1), and then installing the support; S3: after the support is installed, the transverse moving mechanism drives the driving rod (22) to move, so that the L-shaped piece (1) rotates around the support assembly until the L-shaped piece (1) is in a horizontal state, and then the instrument table is installed; S4: after the installation is completed, the L-shaped piece (1) is kept in a horizontal state, the installed cabinet body (2) and U-shaped table (9) are lifted to the carrier vehicle through the forklift by inserting the plug-in interface (5); S6: when the carrier vehicle arrives at the destination, the cabinet body (2) and the U-shaped table (9) are taken off from the carrier vehicle through the forklift, then the U-shaped table (9) is pushed to move the cabinet body (2) to the installation position. S7: When the cabinet (2) is moved to the installation position by the U-shaped table (9), the horizontal moving mechanism reversely moves the driving rod (22) to rotate the L-shaped piece (1) around the supporting assembly until the L-shaped piece (1) is in the vertical state; S8: After fine-tuning the position of the U-shaped table (9), the brake is pressed down, and then the cabinet (2) can be removed from the L-shaped piece (1) for subsequent installation operation.

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