A transformer device integrated in a power distribution cabinet

Abstract

The application discloses a transformer device integrated in a power distribution cabinet, and relates to the technical field of power distribution cabinets.The transformer device comprises a sliding frame, a moving seat, a rotating mechanism, a transformer and a counterweight mechanism.The sliding frame is fixed in the power distribution cabinet.The moving seat is slidably installed on the sliding frame through a first sliding structure and can slide out of or into the power distribution cabinet along a first inclined direction.The first inclined direction is an inclined direction gradually lowering in height from the back of the power distribution cabinet to the front.The moving seat is provided with a horizontal mounting plane at the top.The transformer is rotatably installed on the mounting plane through the rotating mechanism.The counterweight mechanism comprises a fixed pulley, a steel wire rope and a counterweight.The fixed pulley is fixed to one side of the sliding frame close to the back of the power distribution cabinet.The application provides an innovative solution for the maintenance of the transformer integrated in the power distribution cabinet by mechanical balance and modular design, with the core advantages of no power dependence, low maintenance cost and high safety.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically to an integrated transformer device used within a power distribution cabinet. Background Technology

[0002] With the increasing integration of power distribution equipment, the efficiency of installation, inspection, and maintenance of transformers in distribution cabinets has become a key issue. In existing technologies, such as patent publication number CN111490473B, the transformer and cabinet door are linked to slide out through a synchronous drive mechanism with adjustable distance. Although this solves the problem of narrow maintenance space, it relies on manual unlocking and pulling out of the transformer, which is labor-intensive. In addition, it is necessary to step on the limit mechanism and manually open the door at the same time, which is cumbersome. Furthermore, when the transformer is moved outward, the single-sided load can easily cause the center of gravity of the cabinet to shift, posing a risk of tipping over.

[0003] While patent CN117711746B uses an electric slide rail solution, which improves the ease of operation through screw drive, the transformer needs to be shut down before operation can be carried out. This solution requires a backup power supply and does not solve the problem of counterweight balance, and still has defects such as high frictional resistance of the slide rail. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated transformer device that can be used within a distribution cabinet, in order to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] This invention provides an integrated transformer device for use within a distribution cabinet, comprising:

[0007] The sliding bracket is fixed inside the distribution cabinet;

[0008] The movable base is slidably mounted on the sliding frame via a first sliding structure, and can slide out or slide into the power distribution cabinet along a first tilting direction. The first tilting direction is a tilting direction that gradually decreases in height from the back of the power distribution cabinet to the front. The top of the movable base is provided with a horizontal mounting plane.

[0009] The transformer is rotatably mounted on the mounting surface via a rotating mechanism.

[0010] The counterweight mechanism includes a fixed pulley, a steel wire rope, and a counterweight; the fixed pulley is fixed to the side of the sliding frame near the back of the distribution cabinet; one end of the steel wire rope is connected to the back of the movable seat, and the other end passes around the fixed pulley and is connected to the counterweight; the counterweight is slidably installed below the sliding frame through a second sliding structure and can slide along a second inclination direction, the second inclination direction being an inclination direction from the back of the distribution cabinet toward the front and gradually decreasing in height;

[0011] The downward force of the movable seat and the counterweight force of the counterweight are balanced in the sliding direction to achieve lightweight operation of the movable seat.

[0012] Furthermore, the sliding frame includes:

[0013] A removable mounting base plate is fixed inside the power distribution cabinet;

[0014] The support frames are symmetrically arranged on both sides of the mounting base plate, and their tops are provided with sliding planes extending along the first inclined direction;

[0015] The first sliding structure includes a first slide rail fixed on a sliding plane, and a dovetail groove is provided at the top of the first slide rail;

[0016] A pair of sliding bars are fixed at the bottom of the movable seat. The sliding bars are adapted to slide within the dovetail groove, and the length of the sliding bars is greater than the length of the movable seat in the sliding direction.

[0017] Furthermore, the angle between the first tilting direction and the horizontal plane is 10°-15°, and the angle between the second tilting direction and the horizontal plane is greater than the angle between the first tilting direction and the horizontal plane.

[0018] Furthermore, the second sliding structure includes:

[0019] Each support frame has a strip-shaped through groove arranged along the second inclined direction;

[0020] A sliding block is adapted to slide within a strip-shaped through groove, and a counterweight is fixed between two sliding blocks;

[0021] The counterweight is an adjustable mass block whose mass is dynamically matched according to the transformer load.

[0022] Furthermore, the installation position of the fixed pulley is such that the angle between the wire rope and the horizontal plane after the wire rope passes over the fixed pulley is greater than the angle between the first tilting direction and the horizontal plane.

[0023] Furthermore, the movable seat has a handle on its front side, and a locking component is provided between the movable seat and the sliding bracket below the handle. The locking component includes:

[0024] A pair of locking bars are slidably disposed on the movable base, and the first slide rail is provided with an insertion hole at the position corresponding to the locking bar;

[0025] The return spring drives the locking bar to insert into the socket to lock the movable seat;

[0026] The unlocking component includes a pull rod parallel to the handle, with both ends of the pull rod hinged to the ends of the locking bar via hinged rods. Pulling the pull rod disengages the locking bar from the socket.

[0027] Furthermore, the rotating mechanism includes:

[0028] A vertically extending rotating shaft runs through the movable base and rotates in conjunction with the movable base;

[0029] A mounting plate fixed to the top of the rotating shaft is used to install the transformer;

[0030] The support assembly includes a first support ring fixed on the mounting plane and a second support ring fixed to the bottom of the fixing plate; the bottom of the second support ring is uniformly embedded with balls in the circumferential direction, and the balls are in contact with the top of the first support ring.

[0031] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0032] This invention transforms the frictional resistance of traditional slide rail devices into a two-way balance mechanism. It reduces the thrust required for the moving seat to slide out through gravity linkage, making operation easier and less strenuous. It also uses the reverse displacement of the counterweight to offset the overturning torque generated by the transformer's outward movement in real time, ensuring that the overall center of gravity of the distribution cabinet is always within the safe threshold, and completely eliminating the risk of tipping over caused by unilateral force.

[0033] The counterweight mechanism of this invention utilizes the difference in tilt angle to create a locking effect, which can quickly restore balance under sudden external force without the need for electricity or manual intervention.

[0034] The rotating mechanism of this invention enables the transformer to rotate freely through a ball bearing support ring, reducing the space required for maintenance and allowing for external maintenance without entering the cabinet.

[0035] In summary, this invention, through mechanical balance and modular design, offers a revolutionary solution for transformer maintenance integrated within a distribution cabinet, with core advantages including no power dependence, low maintenance costs, and high safety.

[0036] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0037] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0038] Figure 1 This is a schematic diagram of the transformer structure inside the distribution cabinet according to the present invention;

[0039] Figure 2 This is a schematic diagram of the transformer structure of the present invention located outside the distribution cabinet;

[0040] Figure 3 This is a first-view structural schematic diagram of the sliding frame, movable seat, rotating mechanism and counterweight mechanism of the present invention.

[0041] Figure 4 This is a second-view structural schematic diagram of the sliding frame, movable seat, rotating mechanism and counterweight mechanism of the present invention;

[0042] Figure 5 This is a third-view structural diagram of the sliding frame, movable seat, rotating mechanism and counterweight mechanism of the present invention.

[0043] Figure 6 This is a cross-sectional view of the sliding frame structure of the present invention.

[0044] In the picture:

[0045] 1-Distribution cabinet; 2-Sliding frame; 22-Support frame; 3-Moving seat; 31-First sliding structure; 311-First slide rail; 3111-Dovetail slide groove; 312-Sliding bar; 32-Mounting plane; 33-Handle; 4-Rotating mechanism; 41-Rotating shaft; 42-Fixing plate; 43-First support ring; 44-Second support ring; 45-Ball bearing; 5-Transformer; 6-Counterweight mechanism; 61-Fixed pulley; 62-Wire rope; 63-Counterweight; 64-Second sliding structure; 641-Strip groove; 642-Sliding block; 7-Locking component; 71-Locking bar; 72-Socket; 73-Reset spring; 74-Unlocking component; 741-Pull rod; 742-Hinged rod. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0047] Please see Figures 1-6 This invention provides an integrated transformer device for use within a distribution cabinet, comprising a sliding frame 2, a movable base 3, a rotating mechanism 4, a transformer 5, and a counterweight mechanism 6. The sliding frame 2 is fixed inside the distribution cabinet 1. The movable base 3 is slidably mounted on the sliding frame 2 via a first sliding structure 31 and can slide out or into the distribution cabinet 1 along a first inclined direction, wherein the first inclined direction is an inclination direction from the back of the distribution cabinet 1 towards the front, with the height gradually decreasing. The top of the movable base 3 is provided with a horizontal mounting plane 32. The transformer 5 is rotatably mounted on the mounting plane 32 via the rotating mechanism 4.

[0048] The counterweight mechanism 6 includes a fixed pulley 61, a steel wire rope 62, and a counterweight 63. The fixed pulley 61 is fixed to the side of the sliding frame 2 near the back of the distribution cabinet 1. One end of the steel wire rope 62 is connected to the back of the movable seat 3, and the other end passes around the fixed pulley 61 and is connected to the counterweight 63. The counterweight 63 is slidably installed below the sliding frame 2 through a second sliding structure 64 and can slide along a second inclination direction. The second inclination direction is an inclination direction that gradually decreases in height from the back of the distribution cabinet 1 to the front. The downward sliding force of the movable seat 3 and the counterweight force of the counterweight 63 are balanced in the sliding direction to achieve lightweight operation of the movable seat 3.

[0049] Based on the above-mentioned setup, this implementation differs from the conventional design using horizontal slide rails in existing technologies. The horizontal sliding requires manual effort to overcome the sliding friction generated by the transformer 5's own weight. This is limited by the product of the transformer 5's weight and the slide rail's friction coefficient, resulting in a significant physical burden during the movement of heavy transformer equipment. This invention, through an inclined sliding trajectory design, decomposes the transformer 5's weight into a positive pressure perpendicular to the guide rail and a driving force along the guide rail. The vertical component significantly reduces the effective friction of the sliding system, while the inclined component transforms into a driving force for the equipment's autonomous sliding. Simultaneously, the counterweight mechanism 6 dynamically balances and adjusts the gravity driving force, allowing manual operation to compensate for only a small force, achieving lightweight control for the movement of heavy transformer 5. This design not only reduces the manual force requirement to a very small proportion of traditional solutions but, more importantly, utilizes the reverse displacement of the counterweight 63 to counteract the overturning moment generated by the transformer 5's outward movement in real time, ensuring that the overall center of gravity of the distribution cabinet 1 remains within a safe threshold and completely eliminating the risk of tipping due to unilateral force.

[0050] Its specific working principle is as follows: When the movable seat 3 carries the transformer 5 and slides outward along the first tilt direction (from the back of the distribution cabinet 1 to the front and gradually decreasing in height), the steel wire rope 62 of the counterweight mechanism 6 pulls the counterweight 63 along the second tilt direction (opposite or greater tilt angle) through the fixed pulley 61 to move inward towards the back of the distribution cabinet 1, forming dynamic balance; conversely, when the movable seat 3 retracts inward, the counterweight 63 moves outward along the second tilt direction to maintain system stability; when the movable seat 3 slides out completely, the rotating mechanism 4 can release the transformer 5 to rotate freely, so that maintenance personnel can accurately adjust the equipment to the best maintenance angle without entering the distribution cabinet 1, which significantly improves the convenience of operation, while greatly reducing the space occupied by the distribution cabinet 1, realizing the unity of extended maintenance and intensive layout.

[0051] In this embodiment, the sliding frame 2 includes: a detachable mounting base plate (not shown) fixed inside the power distribution cabinet 1; and a support frame 22 symmetrically arranged on both sides of the mounting base plate, the top of which is provided with a sliding plane extending along a first inclined direction;

[0052] The first sliding structure 31 includes a first slide rail 311 fixed on the sliding plane, and a dovetail groove 3111 is provided at the top of the first slide rail 311; a pair of sliding strips 312 are fixed at the bottom of the movable seat 3, the sliding strips 312 are slidably adapted to the dovetail groove 3111, and the length of the sliding strips 312 is greater than the length of the movable seat 3 in the sliding direction.

[0053] Based on the above-mentioned setup, in this embodiment, the mounting base of the sliding frame 2 is pre-fixed to the bottom of the distribution cabinet 1 by bolts. The inclined sliding planes of the two side support frames 22 form a continuous guide surface with an inclination angle with the first slide rail 311. When the moving seat 3 slides along the first inclined direction, the sliding strip 312 at its bottom and the dovetail slide rail 3111 provide guiding constraints, anti-overturning and force transmission. That is, during operation, the tight cooperation between the extended sliding strip 312 at the bottom of the moving seat 3 and the dovetail slide rail 3111 provides precise guiding constraints for the equipment and disperses local stress through the design of the extra-long contact surface. When the moving seat 3 is completely slid out, its sliding strip 312 still maintains multi-point contact with the dovetail slide rail 3111. Combined with the free adjustment function of the rotating mechanism 4, maintenance personnel can easily adjust the position of the transformer 5 at the extended position.

[0054] Specifically, the detachable mounting base plate and the support frame 22 can be connected by a plug-in flange, allowing the entire sliding frame 2 to be pre-installed outside the cabinet and then hoisted into the cabinet in one go, reducing on-site installation time; the dovetail slide 3111 is embedded with a high-polymer wear-resistant liner, which, together with the graphite coating on the surface of the sliding strip 312, reduces the sliding friction coefficient; a sloping buffer block (not shown) can be set at the end of the sliding strip 312. When the moving seat 3 slides beyond its travel, the buffer block and the rubber damper at the end of the slide collide to absorb energy, avoiding rigid impact on the metal parts; an inspection window (not shown) can be opened on the side of the support frame 22 to replace the worn dovetail slide 3111 liner without disassembling the sliding frame 2, shortening maintenance time.

[0055] In this embodiment, the angle between the first tilting direction and the horizontal plane is 10°-15°, and the angle between the second tilting direction and the horizontal plane is greater than the angle between the first tilting direction and the horizontal plane.

[0056] Based on the above-mentioned settings, this embodiment utilizes a unique gradient design of the first and second tilting directions. When the movable seat 3 carrying the transformer 5 slides outward, the second tilting direction is set at a larger angle. Precise gravity compensation is achieved through the reverse movement of the counterweight 63. During this process, the counterweight 63 moves inward synchronously along the steep second tilting direction under the traction of the wire rope 62. The two are linked by the fixed pulley 61. The overturning tendency caused by the outward movement of the movable seat 3 is offset in real time by the reverse displacement of the counterweight 63. The locking effect formed by the larger tilt angle of the counterweight 63 allows for self-locking without power at any position. The mechanical advantage brought by the angle difference allows for rapid restoration of balance, making the balance response more agile.

[0057] Furthermore, this design with differentiated tilt angles not only optimizes the space ratio of the counterweight mechanism 6, allowing it to be completely hidden in the narrow space at the bottom of the distribution cabinet 1 (achieving seamless integration of the balancing system and equipment layout without increasing the cabinet size), but also ensures that the overall center of gravity of the distribution cabinet 1 remains stable within the range of the moving seat 3 during the relocation of the transformer 5 by matching the gravity components, thus solving the risk of tipping over caused by unilateral load in traditional devices.

[0058] In this embodiment, the second sliding structure 64 includes: a strip-shaped through groove 641 arranged in the second inclined direction in each support frame 22; a sliding block 642 slidably adapted to the strip-shaped through groove 641; and a counterweight 63 fixed between the two sliding blocks 642; the counterweight 63 is an adjustable mass block whose mass is dynamically matched according to the load of the transformer 5.

[0059] In use, the sliding block 642 engages with the strip-shaped through groove 641 using an embedded roller assembly, ensuring smooth movement while effectively restraining lateral offset. The two sliding blocks 642 are fixedly connected to the counterweight 63 via the support frame 22. When the moving seat 3 is pulled outward, the wire rope 62 pulls the sliding block 642 to move inward at a uniform speed along the strip-shaped through groove 641 in the second inclined direction, so as to convert the gravitational potential energy of the counterweight 63 into a balancing torque. The modular adjustable mass design of the counterweight 63 eliminates the drawback of the traditional counterweight requiring overall replacement. In use, it can be adapted to any transformer 5 load within a certain range by adding or removing local units.

[0060] In this embodiment, the fixed pulley 61 is installed in such a way that the angle between the wire rope 62 and the horizontal plane after it passes over the fixed pulley 61 is greater than the angle between the first tilting direction and the horizontal plane.

[0061] Based on the above configuration, when the transformer 5 moves outward along the inclined track, the gravity in its suspended state will create a torque effect at the far end of the sliding bar 312, causing a sharp increase in pressure between the far end of the sliding bar 312 and the upper side of the dovetail groove 3111. At this time, the counterweight mechanism 6 plays a dual adjustment role. The asymmetrical traction angle formed after the wire rope 62 passes over the fixed pulley 61 (the angle between the wire rope 62 and the horizontal plane after passing over the fixed pulley 61 is greater than the angle between the first inclined direction and the horizontal plane) decomposes the reverse traction force into a component force system with spatial compensation characteristics. That is, the reverse traction force can be decomposed into a downward pulling force applied at the other end of the sliding bar 312. The force applied to the sliding bar 312 and the upward pulling force applied to the other end of the sliding bar 312 can effectively fill the pressure vacuum area caused by torque imbalance on the bottom surface of the dovetail groove 3111, stabilize the pressure fluctuation of the contact surface, and eliminate the jamming risk common in traditional designs. The force applied to the upward pulling force of the sliding bar 312 can stabilize the net sliding driving force within the preset threshold by adjusting the tension value in real time. This two-way force compensation mechanism not only eliminates the sudden change in sliding resistance caused by unilateral pressure concentration in traditional designs, but also improves the tribological performance of the dovetail groove 3111 to a quasi-fluid lubrication state by establishing a prestress field.

[0062] In this embodiment, the movable seat 3 has a handle 33 on its front side, and a locking component 7 is provided between the movable seat 3 below the handle 33 and the sliding frame 2. The locking component 7 includes:

[0063] A pair of locking bars 71 are slidably disposed on the movable seat 3, and the first slide rail 311 is provided with an insertion hole 72 at the position corresponding to the locking bar 71;

[0064] The reset spring 73 drives the locking bar 71 to insert into the socket 72 to lock the movable seat 3;

[0065] The unlocking component 74 includes a pull rod 741 parallel to the handle 33. Both ends of the pull rod 741 are hinged to the ends of the locking bar 71 via hinge rods 742. Pulling the pull rod 741 can disengage the locking bar 71 from the socket 72.

[0066] Based on the above-described configuration, in this embodiment, the handle 33 on the front of the movable seat 3 provides a point for manual operation, while the locking component 7 integrated below it achieves rapid locking and releasing between the movable seat 3 and the sliding frame 2 through a mechanical linkage design. The unlocking component 74 adopts a pull rod 741 structure parallel to the handle 33. The two ends of the pull rod 741 form a hinged four-bar linkage with the outer end of the locking bar 71 through the hinge rod 742. When the operator holds the handle 33 and pulls the pull rod 741 upward, the linear displacement of the pull rod 741 is converted into the lateral retraction movement of the locking bar 71 through the hinge rod 742, forcing the locking bar 71 to overcome the elastic force of the return spring 73 and disengage from the socket 72, thus releasing the locked state of the movable seat 3. This design amplifies the operating force through the lever principle, realizing a lightweight unlocking action that can be completed with one hand. At the same time, the rigid transmission characteristics of the hinge rod 742 ensure that the locking bars 71 on both sides disengage synchronously, avoiding unlocking failure caused by one-sided jamming.

[0067] In this embodiment, the rotating mechanism 4 includes: a rotating shaft 41 that vertically passes through the movable seat 3 and rotates with the movable seat 3; a fixing plate 42 fixed to the top of the rotating shaft 41 for mounting the transformer 5; and a support assembly including a first support ring 43 fixed to the mounting plane 32 and a second support ring 44 fixed to the bottom of the fixing plate 42; the bottom of the second support ring 44 is uniformly embedded with balls 45 along the circumferential direction, and the balls 45 are in contact with the top of the first support ring 43.

[0068] Based on the above-described configuration, in this embodiment, the fixing plate 42, fixed to the top of the rotating shaft 41, serves as the mounting platform for the transformer 5. The second support ring 44 welded to its bottom and the first support ring 43 fixed on the mounting plane 32 form an annular support track, creating a closed force transmission path. When the fixing plate 42 is driven by an external force, the balls 45 of the second support ring 44 roll along the first support ring 43. Their circumferentially distributed characteristic ensures that the weight of the transformer 5 is evenly distributed to each contact point of the balls 45, reducing resistance. When rotation stops, the fixing plate 42 can be locked with bolts using conventional techniques to prevent the fixing plate 42 from rotating.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A transformer device integrated into a distribution cabinet, characterized in that, include: The sliding bracket is fixed inside the distribution cabinet; The movable base is slidably mounted on the sliding frame via a first sliding structure, and can slide out or slide into the power distribution cabinet along a first tilting direction. The first tilting direction is a tilting direction that gradually decreases in height from the back of the power distribution cabinet to the front. The top of the movable base is provided with a horizontal mounting plane. The transformer is rotatably mounted on the mounting surface via a rotating mechanism. The counterweight mechanism includes a fixed pulley, a steel wire rope, and a counterweight; the fixed pulley is fixed to the side of the sliding frame near the back of the distribution cabinet; one end of the steel wire rope is connected to the back of the movable seat, and the other end passes around the fixed pulley and is connected to the counterweight; the counterweight is slidably installed below the sliding frame through a second sliding structure and can slide along a second inclination direction, the second inclination direction being an inclination direction from the back of the distribution cabinet toward the front and gradually decreasing in height; The downward force of the movable seat and the counterweight force of the counterweight are in a balanced state in the sliding direction to achieve lightweight operation of the movable seat sliding. The sliding frame includes: A removable mounting base plate is fixed inside the power distribution cabinet; The support frames are symmetrically arranged on both sides of the mounting base plate, and their tops are provided with sliding planes extending along the first inclined direction; The first sliding structure includes a first slide rail fixed on a sliding plane, and a dovetail groove is provided at the top of the first slide rail; A pair of sliding bars are fixed at the bottom of the movable seat. The sliding bars are slidably adapted to the dovetail groove, and the length of the sliding bars is greater than the length of the movable seat in the sliding direction. The movable base has a handle on its front side, and a locking component is provided between the movable base and the sliding bracket below the handle. The locking component includes: A pair of locking bars are slidably disposed on the movable base, and the first slide rail is provided with an insertion hole at the position corresponding to the locking bar; The return spring drives the locking bar to insert into the socket to lock the movable seat; The unlocking component includes a pull rod parallel to the handle, with both ends of the pull rod hinged to the ends of the locking bar via hinged rods. Pulling the pull rod disengages the locking bar from the socket.

2. The integrated transformer device for use within a distribution cabinet according to claim 1, characterized in that, The angle between the first tilting direction and the horizontal plane is 10°-15°, and the angle between the second tilting direction and the horizontal plane is greater than the angle between the first tilting direction and the horizontal plane.

3. The integrated transformer device for use within a distribution cabinet according to claim 1, characterized in that, The second sliding structure includes: Each support frame has a strip-shaped through groove arranged along the second inclined direction; A sliding block is adapted to slide within a strip-shaped through groove, and a counterweight is fixed between two sliding blocks; The counterweight is an adjustable mass block whose mass is dynamically matched according to the transformer load.

4. The integrated transformer device for use within a distribution cabinet according to claim 3, characterized in that, The fixed pulley is installed in such a way that the angle between the wire rope and the horizontal plane after the wire rope passes over the fixed pulley is greater than the angle between the first inclined direction and the horizontal plane.

5. The integrated transformer device for use within a distribution cabinet according to claim 1, characterized in that, The rotating mechanism includes: A vertically extending rotating shaft runs through the movable base and rotates in conjunction with the movable base; A mounting plate fixed to the top of the rotating shaft is used to install the transformer; The support assembly includes a first support ring fixed on the mounting plane and a second support ring fixed to the bottom of the fixing plate; the bottom of the second support ring is uniformly embedded with balls in the circumferential direction, and the balls are in contact with the top of the first support ring.

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