Lifting clamp for electric power

Abstract

The invention relates to the technical field of hoisting, in particular to a hoisting clamp for electric power. Comprising a bearing plate; lifting rings are arranged at the four corners of the upper end of the bearing plate correspondingly, a supporting plate is installed at the lower end of the bearing plate through a shaft column, a rectangular frame is installed at the lower end of the supporting plate, the upper end of the shaft column slidably penetrates through the bearing plate, a baffle located below the bearing plate is arranged on the shaft column, and a fixing mechanism used for being matched with lifting lugs is arranged on the side edge of the rectangular frame. A limiting mechanism matched with the lug seat is arranged on the rectangular frame; according to the fixing mechanism, the cable is hung at the corresponding position of the lifting lug through the tensioning part and the winding part, the adjusting time is shortened, the transformer is stably lifted, the situation that the transformer deviates or inclines to affect the subsequent installation work is avoided, the lifting clamp and the transformer are further fixed through cooperation of the limiting mechanism and the lug base, and the safety of the transformer is improved. Therefore, the stability of the transformer after being hoisted is improved, and the position of the transformer can be conveniently and manually adjusted, so that the transformer and the fixing frame are mounted in an aligned manner.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, and in particular to a hoisting fixture for electric power. Background Art

[0002] Transformer is the most common power equipment. The exterior of the transformer is mainly composed of an oil tank (i.e., an outer shell), a cover plate, and a base. The upper end of the cover plate is provided with an ear seat for cooperating with a steel cable to lift the cover plate and the oil tank, and the side wall of the oil tank is provided with a lifting ear for cooperating with a steel cable to lift the transformer oil tank or lift the transformer as a whole and install it on a corresponding fixed frame. Since transformers are usually large and heavy, lifting fixtures are often used for lifting operations during the installation process. Usually, the steel cable or lifting belt is directly hung on the lifting ear position of the transformer for lifting operations.

[0003] The current lifting fixture has the following problems during the lifting operation of the transformer: the existing lifting operation is simply to hang the steel cable or lifting belt on the lifting lug of the transformer, without any additional fixing and stabilizing mechanism, so it is easily affected by external factors, causing the transformer to shake or shift easily after lifting, increasing the safety risk, and simply hanging the steel cable or lifting belt directly on the lifting lug position of the transformer makes it difficult to ensure that the connection between the steel cable or lifting belt and the lifting lug is completely symmetrical and balanced. Therefore, during the process of lifting the transformer, the transformer will tilt due to uneven force, causing the transformer to be lifted and moved in an inclined state, thereby affecting the subsequent alignment and fixation with the fixed frame. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides an electric power lifting clamp to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: the embodiment of the present application provides a lifting fixture for electric power, including a support plate; the four corners of the upper end of the support plate are provided with lifting rings, the lower end of the support plate is installed with a support plate through an axle column, the lower end of the support plate is installed with a rectangular frame, the upper end of the axle column slides through the support plate, the axle column is provided with a baffle located below the support plate, the side of the rectangular frame is provided with a fixing mechanism for cooperating with the lifting ear, and the rectangular frame is provided with a limiting mechanism for cooperating with the ear seat.

[0006] As a preferred embodiment, the fixing mechanism includes a slot, the support plate is an inverted shaped structure, two slots are symmetrically provided at both ends of the front and rear of the rectangular frame, two guide wheels are symmetrically installed in the slots for front and rear rotation, a cable is provided on each of the front and rear sides of the rectangular frame, the cable cooperates with the corresponding two lifting ears to fix the rectangular frame to the transformer, and the two ends of the cable pass through between the two guide wheels in the corresponding slots respectively.

[0007] As a preferred solution, the support plate is provided with a reeling portion for reeling in the cable, and the rectangular frame is provided with a tensioning portion for tensioning the cable.

[0008] As a preferred embodiment, the winding part includes a rotating shaft, and a rotating shaft is arranged between the two vertical sections of the support plate. Winding drums are installed at both ends of the rotating shaft after rotating through the support plate, and the two ends of the cable located on the front side are fit and fixed to the lower surface of the corresponding winding drum, and the two ends of the cable located on the rear side are fit and fixed to the upper surface of the corresponding winding drum, and a locking part for limiting the rotation of the rotating shaft is arranged on the support plate.

[0009] As a preferred embodiment, the locking member includes a waist-shaped plate, both ends of the rotating shaft are fixedly installed with waist-shaped plates, the two vertical sections of the support plate slide through the limiting columns, the opposite ends of the two limiting columns slide through the corresponding waist-shaped plates, the opposite sections of the two limiting columns are provided with convex rings, and a No. 1 tension spring is installed between the convex ring on the limiting column and the corresponding vertical section of the support plate, a pushing plate located between the corresponding waist-shaped plate and the support plate is installed on the limiting column, and a linkage component is arranged between the two limiting columns.

[0010] As a preferred embodiment, the tensioning part includes a support assembly, and two groups of support assemblies are symmetrically installed at the upper end of the rectangular frame, each group of support assemblies is composed of two left-right symmetrical support plates, the support plates are inverted shaped structure, and rectangular grooves corresponding to the support plates are opened on the rectangular frame. Pillars are installed at the lower ends of the horizontal sections of the support plates through compression springs. The two pillars in the same group are movably inserted through the corresponding rectangular grooves and are jointly installed with an axial rod, and a support rod is hinged at both ends of the axial rod, and a sleeve is hinged at both ends of the support rod, and the sleeve is slidably mounted on the cable, and a triangular area is formed between the support rod and the cable, and a deflection member for driving the pillar to rotate is arranged on the support plate.

[0011] As a preferred embodiment, the deflection member includes a slide groove, a slide groove is opened on the pillar, a slider is slidably installed in the slide groove, the slider is rotatably connected to the support plate through a torsion spring rod, push-pull plates are installed after the two ends of the torsion spring rod pass through the corresponding support plates, a connecting rod is installed between the two push-pull plates on the same torsion spring rod, and a lifting component for pulling the push-pull plate to rotate is provided on the support plate.

[0012] As a preferred solution, the limiting mechanism includes a bearing plate, and the front and rear ends of the two vertical sections of the support plate are each installed with a bearing plate, a bidirectional screw is rotatably installed between the two front and rear opposite bearing plates, the two threaded sections of the bidirectional screw are threadedly connected with a screw plate, and the screw plate is slidably connected to the support plate, and an insertion rod that cooperates with the through hole on the ear seat is installed at the lower part of the opposite surfaces of the two front and rear opposite screw plates.

[0013] As a preferred solution, the linkage assembly includes a connecting rod, a disc is hinged between the two limit columns through the connecting rod, a guide column is installed on the upper end of the disc, and the upper end of the guide column slides through the support plate.

[0014] As a preferred embodiment, the lifting assembly includes a No. 2 tension spring, a No. 2 tension spring corresponding to the connecting rod is installed at the lower end of the support plate, a fixed disk is installed at the lower end of the No. 2 tension spring, and a No. 2 rope is installed between the fixed disk and the corresponding connecting rod.

[0015] As a preferred solution, the four corners at the lower end of the rectangular frame are provided with positioning plates for aligning the rectangular frame, and the positioning plates are L-shaped structures, and a No. 1 rope is installed between the four corners at the lower end of the supporting plate and the rectangular frame.

[0016] As a preferred solution, the rotating shaft and the bidirectional screw are connected via a worm gear transmission.

[0017] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: The fixing mechanism of the present invention allows the cable to be hung at the corresponding position of the lifting ear through the tensioning part and the winding part, thereby reducing the adjustment time and allowing the transformer to be lifted stably to avoid its displacement or tilt affecting the subsequent installation of the transformer. The limiting mechanism cooperates with the ear seat to further fix the lifting fixture to the transformer, thereby improving the stability of the transformer after being lifted, and facilitating manual adjustment of the transformer position for alignment installation of the transformer and the fixing frame.

[0018] The tensioning part provided in the present invention uses a torsion spring rod to make the lifting ear located in the triangular area formed between the support rod and the cable, thereby ensuring that the draw rope can be directly pulled to hang on the lifting ear when the winding part winds up the cable. When the winding part loosens the cable, the lifting ear is separated from the triangular area formed between the support rod and the cable by pulling the No. 2 rope, so as to separate the lifting fixture from the transformer. This process reduces manual operation, thereby reducing adjustment time and improving the efficiency of transformer lifting.

[0019] The present invention enables two limit posts to be synchronously moved out of or inserted into corresponding waist-shaped plates through a linkage assembly, so that a single person can fix and release the rotating shaft from the corresponding side of the transformer, thereby simplifying the operation steps and improving work efficiency.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the first perspective structure of this application.

[0023] Figure 2 for Figure 1 Schematic diagram of the second perspective structure.

[0024] Figure 3 for Figure 2 A magnified view of the structure in Figure 2.

[0025] Figure 4 This is a schematic diagram of the deflection member structure of the present application.

[0026] Figure 5 for Figure 4 Enlarged view of the structure at point B in the middle.

[0027] Figure 6 This is a schematic diagram of the limit mechanism structure of this application.

[0028] Figure 7 for Figure 6 Enlarged view of the structure at point C in the middle.

[0029] Reference numerals: 10. Support plate; 11. Shaft column; 12. Support plate; 13. Rectangular frame; 14. Baffle plate; 15. Positioning plate; 16. Rope No. 1; 2. Fixing mechanism; 20. Guide wheel; 21. Cable; 22. Reeling part; 220. Rotating shaft; 221. Reeling reel; 4. Locking member; 40. Waist plate; 41. Limiting column; 42. Tension spring No. 1; 43. Pushing plate; 44. Connecting rod; 4 5. Guide column; 23. Tensioning part; 230. Support plate; 231. Pillar; 232. Shaft rod; 233. Support rod; 234. Sleeve; 5. Deflection member; 50. Slider; 51. Torsion spring rod; 52. Push-pull plate; 53. Connecting rod; 54. No. 2 tension spring; 55. No. 2 rope; 3. Limiting mechanism; 30. Bidirectional screw; 31. Screw plate; 32. Insert rod; 33. Worm gear. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] like Figure 1 and Figure 2 As shown, a lifting fixture for electric power includes a supporting plate 10; the four corners of the upper end of the supporting plate 10 are provided with lifting rings, the lower end of the supporting plate 10 is installed with a supporting plate 12 through a shaft column 11, the lower end of the supporting plate 12 is installed with a rectangular frame 13, the upper end of the shaft column 11 slides through the supporting plate 10, the shaft column 11 is provided with a baffle 14 located below the supporting plate 10, the side of the rectangular frame 13 is provided with a fixing mechanism 2 for cooperating with the lifting ear, and the rectangular frame 13 is provided with a limiting mechanism 3 for cooperating with the ear seat.

[0032] like Figure 2 and Figure 3 As shown, the four corners of the lower end of the rectangular frame 13 are provided with positioning plates 15 for aligning the rectangular frame 13, and the positioning plates 15 are L-shaped structures, and a No. 1 rope 16 is installed between the four corners of the lower end of the supporting plate 10 and the rectangular frame 13. It should be noted that the lower end of the positioning plate 15 is chamfered to facilitate docking with the transformer.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the fixing mechanism 2 includes a notch, the support plate 12 is an inverted shaped structure, two notches are symmetrically provided at both ends of the front and rear of the rectangular frame 13, two guide wheels 20 are symmetrically installed in the notch for front and rear rotation, a cable 21 is provided on each of the front and rear sides of the rectangular frame 13, the cable 21 cooperates with the corresponding two lifting ears to fix the rectangular frame 13 to the transformer, and the two ends of the cable 21 pass through between the two guide wheels 20 in the corresponding notches respectively.

[0034] like Figure 1 As shown, the support plate 12 is provided with a reeling portion 22 for reeling in the cable 21 , and the rectangular frame 13 is provided with a tensioning portion 23 for tensioning the cable 21 .

[0035] During specific work, the lifting ring at the upper end of the supporting plate 10 is connected with the steel cable on the external crane, and then the external crane moves the lifting fixture to the top of the transformer, and then the external crane lowers the lifting fixture close to the transformer, so that the positioning plate 15 is stuck in the corner position of the transformer, so that the rectangular frame 13 can move down and fit the transformer in the correct state. As the external crane releases the steel cable, the supporting plate 10 will move down and contact the baffle 14. At this time, under the action of the tensioning part 23, the cable 21 is driven to move toward the transformer, and the corresponding part of the cable 21 will be located below the lifting ear. After that, the cable 21 is manually reeled in through the reeling part 22, so that the cable 21 is reeled in and tensioned, so that the cable 21 is tightly attached to the lifting ear, thereby fixing the rectangular frame 13 on the transformer, and in the process of the reeling part 22 reeling in the cable 21, the limiting mechanism 3 will be driven to cooperate with the ear seat to further fix the lifting fixture to the transformer, and then the external crane lifts the transformer through the lifting fixture for subsequent operations.

[0036] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the tensioning part 23 includes a support assembly, and two groups of support assemblies are symmetrically installed at the upper end of the rectangular frame 13, each group of support assemblies is composed of two left-right symmetrical support plates 230, the support plates 230 are inverted shaped structure, and rectangular grooves corresponding to the support plates 230 are opened on the rectangular frame 13, and pillars 231 are installed at the lower ends of the horizontal sections of the support plates 230 through compression springs. The two pillars 231 of the same group are movably inserted into the corresponding rectangular grooves and are jointly installed with an axle rod 232, and a support rod 233 is hinged at both ends of the axle rod 232, and a sleeve 234 is hinged at both ends of the support rod 233, and the sleeve 234 is slidably sleeved on the cable 21, and a triangular area is formed between the support rod 233 and the cable 21, and a deflection member 5 for driving the pillar 231 to rotate is provided on the support plate 230.

[0037] like Figure 4 and Figure 5 As shown, the deflection member 5 includes a slide groove, a slide groove is opened on the pillar 231, a slider 50 is slidably installed in the slide groove, the slider 50 is rotatably connected to the support plate 230 through a torsion spring rod 51, and push-pull plates 52 are installed after the two ends of the torsion spring rod 51 pass through the corresponding support plate 230, a connecting rod 53 is installed between the two push-pull plates 52 on the same torsion spring rod 51, and a lifting component for pulling the push-pull plate 52 to rotate is provided on the supporting plate 10.

[0038] like Figure 4 As shown, the lifting assembly includes a No. 2 tension spring 54, and a No. 2 tension spring 54 corresponding to the connecting rod 53 is installed at the lower end of the support plate 10, a fixed disk is installed at the lower end of the No. 2 tension spring 54, and a No. 2 rope 55 is installed between the fixed disk and the corresponding connecting rod 53.

[0039] During specific operation, after the rectangular frame 13 is fitted with the transformer, as the supporting plate 10 moves downward, the No. 2 rope 55 is relaxed to release the pulling of the push-pull plate 52, and the push-pull plate 52 is rotated downward and reset under the action of the torsion spring rod 51, and at the same time, the support 231 is driven to rotate toward the transformer through the slider 50, and the support 231 drives the shaft 232 to approach the transformer, and the shaft 232 drives the corresponding cable 21 to rotate to the bottom of the lifting ear through the support rod 233 and the sleeve 234, and then the manual reel 22 is used to reel the cable 21 to the bottom of the lifting ear. The cable 21 is wound up, so that the corresponding cable 21 moves up and fits with the lifting ear. At the same time, the support pillar 231 is pushed up by the shaft 232 and the compression spring is compressed. Then the external crane pulls up the support plate 10. Because the cable 21 is in close contact with the lifting ear, the push-pull plate 52 cannot be pulled when the support plate 10 moves up. At this time, the No. 2 tension spring 54 is stretched until the No. 1 rope 16 is tensioned. Then, as the support plate 10 moves up, the lifting fixture and the fixed transformer will be lifted and moved to the corresponding installation position.

[0040] After the transformer is moved to the corresponding installation position and fixed, the cable 21 is manually loosened through the reeling part 22. At this time, the pillar 231 moves downward through the compression spring to push the shaft 232. The shaft 232 pushes the corresponding cable 21 downward to disengage from the lifting ear through the support rod 233 and the sleeve 234. At the same time, the limit mechanism 3 disengages from the ear seat. Then the external crane pulls the supporting plate 10 to move upward. The supporting plate 10 pulls the push-pull plate 52 upward through the No. 2 tension spring 54 and the No. 2 rope 55. The push-pull plate 52 drives the corresponding pillar 231 to rotate away from the transformer through the torsion spring rod 51 and the corresponding slider 50. The pillar 231 drives the corresponding cable 21 to rotate away from the transformer through the shaft 232, the support rod 233 and the sleeve 234. At this time, with the lifting of the external crane, the lifting fixture is separated from the transformer.

[0041] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the winding portion 22 includes a rotating shaft 220, and the rotating shaft 220 is arranged between the two vertical sections of the support plate 12. After rotating through the support plate 12, both ends of the rotating shaft 220 are installed with winding drums 221, and both ends of the cable 21 located on the front side are fitted and fixed to the lower surface of the corresponding winding drum 221, and both ends of the cable 21 located on the rear side are fitted and fixed to the upper surface of the corresponding winding drum 221. A locking member 4 for limiting the rotation of the rotating shaft 220 is arranged on the support plate 12.

[0042] like Figure 2 and Figure 4As shown, the locking member 4 includes a waist-shaped plate 40, and the waist-shaped plates 40 are fixedly installed at both ends of the rotating shaft 220. The two vertical sections of the support plate 12 slide through the limiting columns 41, and the opposite ends of the two limiting columns 41 slide through the corresponding waist-shaped plates 40. The opposite sections of the two limiting columns 41 are provided with convex rings, and a No. 1 tension spring 42 is installed between the convex ring on the limiting column 41 and the corresponding vertical section of the support plate 12. A pushing plate 43 located between the corresponding waist-shaped plate 40 and the support plate 12 is installed on the limiting column 41, and a linkage component is arranged between the two limiting columns 41.

[0043] like Figure 4 As shown, the linkage assembly includes a connecting rod 44, and a disc is hinged between the two limit posts 41 through the connecting rod 44. A guide post 45 is installed on the upper end of the disc, and the upper end of the guide post 45 slides through the support plate 12.

[0044] During specific operation, the rotating shaft 220 is manually rotated through the waist plate 40, and the rotating shaft 220 drives the winding drum 221 to rotate, and the winding drum 221 winds up the cable 21 to tighten the cable 21 and make the cable 21 fit with the lifting ear. At this time, the waist plate 40 moves to the position of the limiting column 41, and the limiting column 41 moves and is inserted into the corresponding waist plate 40 under the action of the No. 1 tension spring 42 to limit the rotation of the rotating shaft 220, so as to keep the cable 21 taut and fit with the lifting ear. In addition, the rotating shaft 220 will drive the limiting mechanism 3 to cooperate with the ear seat during rotation.

[0045] After the lifting fixture is fixed to the transformer, the external crane lifts the transformer to the corresponding installation position, then puts the transformer down, and then fixes the transformer in the corresponding position. After the transformer is fixed, the push plate 43 is manually pushed toward the support plate 12 to make the limit column 41 separate from the corresponding waist plate 40, and the pushed limit column 41 will pull another limit column 41 to separate from the corresponding waist plate 40 through the connecting rod 44. At this time, the waist plate 40 rotates the rotating shaft 220 to make the winding disk 221 loosen the cable 21, and the cable 21 is away from the lifting ear under the action of the tensioning part 23, and then the external crane lifts the supporting plate 10 until the No. 1 rope 16 is tightened, and at the same time drives the tensioning part 23 to rotate the cable 21, so that the cable 21 is away from the transformer, and then with the lifting of the external crane, the lifting fixture is separated from the transformer.

[0046] like Figure 1 , Figure 4 , Figure 6 and Figure 7As shown, the limiting mechanism 3 includes a bearing plate, and the front and rear ends of the two vertical sections of the support plate 12 are each installed with a bearing plate, and a bidirectional screw 30 is rotatably installed between the two front and rear opposite bearing plates, and the two threaded sections of the bidirectional screw 30 are threadedly connected with a screw plate 31, and the screw plate 31 is slidably connected to the support plate 12, and an insertion rod 32 that cooperates with the through hole on the ear seat is installed at the lower part of the opposite surfaces of the two front and rear opposite screw plates 31.

[0047] like Figure 6 and Figure 7 As shown, the rotating shaft 220 and the bidirectional screw 30 are connected through a worm gear 33.

[0048] During specific work, when manually rotating the shaft 220 through the waist plate 40 to reel in the cable 21, the shaft 220 will drive the bidirectional screw 30 to rotate through the worm gear 33, and the bidirectional screw 30 will drive the corresponding two screw plates 31 to approach each other, and the screw plates 31 move to insert the insertion rod 32 into the through hole of the corresponding ear seat, so as to further fix the lifting fixture to the transformer, thereby improving the stability of the transformer after being lifted, and at the same time ensuring the stability when manually adjusting the transformer to the installation position. After the transformer is lifted and installed, the shaft 220 is rotated in the opposite direction to release the cable 21 from the fitting to the lifting ear, and the bidirectional screw 30 is driven to rotate in the opposite direction through the worm gear 33, so as to drive the insertion rod 32 to disengage from the through hole of the corresponding ear seat through the screw plate 31, and then remove the lifting fixture, and then repeat the above operation to carry out the lifting processing of the remaining transformers.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting fixture for electric power, comprising a supporting plate (10); characterized in that: The four corners of the upper end of the support plate (10) are all provided with lifting rings, the lower end of the support plate (10) is installed with a supporting plate (12) through a shaft column (11), the lower end of the support plate (12) is installed with a rectangular frame (13), the upper end of the shaft column (11) slides through the support plate (10), a baffle (14) located below the support plate (10) is provided on the shaft column (11), a fixing mechanism (2) for cooperating with the lifting ear is provided on the side of the rectangular frame (13), and a limiting mechanism (3) cooperating with the ear seat is provided on the rectangular frame (13); wherein: The fixing mechanism (2) comprises a notch, the support plate (12) is of an inverted shaped structure, two notches are symmetrically provided at both ends of the front and rear of the rectangular frame (13), two guide wheels (20) are symmetrically installed in the notch for front and rear rotation, a cable (21) is provided at each of the front and rear sides of the rectangular frame (13), the cable (21) cooperates with two corresponding lifting ears to fix the rectangular frame (13) to the transformer, and the two ends of the cable (21) respectively pass through between the two guide wheels (20) in the corresponding notches; The support plate (12) is provided with a reeling portion (22) for reeling in the cable (21), and the rectangular frame (13) is provided with a tensioning portion (23) for tensioning the cable (21).

2. The electric power lifting fixture according to claim 1, characterized in that: The winding portion (22) includes a rotating shaft (220), and a rotating shaft (220) is arranged between the two vertical sections of the support plate (12). After the two ends of the rotating shaft (220) rotate and pass through the support plate (12), winding drums (221) are installed. The two ends of the cable (21) located on the front side are fitted and fixed to the lower surface of the corresponding winding drum (221), and the two ends of the cable (21) located on the rear side are fitted and fixed to the upper surface of the corresponding winding drum (221). A locking member (4) for limiting the rotation of the rotating shaft (220) is arranged on the support plate (12).

3. The electric power lifting fixture according to claim 2, characterized in that: The locking member (4) comprises a waist-shaped plate (40), both ends of the rotating shaft (220) are fixedly mounted with waist-shaped plates (40), the two vertical sections of the support plate (12) are slidably penetrated through the limiting columns (41), the opposite ends of the two limiting columns (41) are slidably penetrated through the corresponding waist-shaped plates (40), the opposite sections of the two limiting columns (41) are provided with convex rings, a tension spring (42) is installed between the convex ring on the limiting column (41) and the vertical section of the corresponding support plate (12), a pushing plate (43) located between the corresponding waist-shaped plate (40) and the support plate (12) is installed on the limiting column (41), and a linkage component is arranged between the two limiting columns (41).

4. The electric power lifting fixture according to claim 1, characterized in that: The tensioning part (23) comprises a support assembly. Two groups of support assemblies are symmetrically installed at the upper end of the rectangular frame (13). Each group of support assemblies consists of two left-right symmetrical support plates (230). The support plates (230) are in an inverted shaped structure. A rectangular groove corresponding to the support plates (230) is opened on the rectangular frame (13). A support column (231) is installed at the lower end of the horizontal section of the support plate (230) through a compression spring. The two support columns (231) of the same group are movably inserted through the corresponding rectangular groove and are jointly installed with an axle rod (232). A support rod (233) is hinged at both ends of the axle rod (232). A sleeve (234) is hinged at both ends of the support rod (233). The sleeve (234) is slidably sleeved on the cable (21), and a triangular area is formed between the support rod (233) and the cable (21). A deflection member (5) for driving the support column (231) to rotate is provided on the support plate (230).

5. The electric power lifting fixture according to claim 4, characterized in that: The deflection member (5) includes a slide groove, and the support (231) is provided with a slide groove, in which a slider (50) is slidably installed, and the slider (50) is rotatably connected to the support plate (230) through a torsion spring rod (51), and push-pull plates (52) are installed after the two ends of the torsion spring rod (51) pass through the corresponding support plate (230), and a connecting rod (53) is installed between the two push-pull plates (52) on the same torsion spring rod (51), and a lifting component for pulling the push-pull plate (52) to rotate is provided on the supporting plate (10).

6. The electric power lifting fixture according to claim 2, characterized in that: The limiting mechanism (3) comprises a bearing plate, and the front and rear ends of the two vertical sections of the support plate (12) are each equipped with a bearing plate, a bidirectional screw rod (30) is rotatably installed between the two front and rear opposite bearing plates, the two threaded sections of the bidirectional screw rod (30) are both threadedly connected with a screw plate (31), and the screw plate (31) is slidably connected to the support plate (12), and an insertion rod (32) that cooperates with the through hole on the ear seat is installed at the lower part of the opposite surface of the two front and rear opposite screw plates (31).

7. The electric power lifting fixture according to claim 3, characterized in that: The linkage assembly comprises a connecting rod (44), a disc is hingedly connected between the two limit posts (41) via the connecting rod (44), a guide post (45) is installed at the upper end of the disc, and the upper end of the guide post (45) slides through the support plate (12).

8. The electric power lifting fixture according to claim 5, characterized in that: The lifting assembly includes a No. 2 tension spring (54), and the lower end of the supporting plate (10) is equipped with a No. 2 tension spring (54) corresponding to the connecting rod (53). A fixed disk is installed at the lower end of the No. 2 tension spring (54), and a No. 2 rope (55) is installed between the fixed disk and the corresponding connecting rod (53).

9. The electric power lifting fixture according to claim 1, characterized in that: The four corners at the lower end of the rectangular frame (13) are all provided with positioning plates (15) for aligning the rectangular frame (13), and the positioning plates (15) are in an L-shaped structure. A No. 1 rope (16) is installed between the four corners at the lower end of the supporting plate (10) and the rectangular frame (13).

10. The electric power lifting fixture according to claim 6, characterized in that: The rotating shaft (220) and the bidirectional screw (30) are connected in transmission via a worm gear (33).

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