A protective installation device for a temporary power transmission transformer

Abstract

The present invention relates to the technical field of transformers, and in particular to a protective installation device for a temporary power transmission transformer. Aiming at the problem of insufficient mobility, stability and safety during use, a protective installation device for a temporary power transmission transformer is provided, comprising a base frame, a plurality of movable wheels are arranged below the base frame, a lifting mechanism is arranged above the base frame, the lifting mechanism comprises a rotatable screw rod, a lifting frame is arranged on the screw rod, a clamping mechanism is arranged on the lifting frame, the clamping mechanism comprises a plurality of clamping members, and when the screw rod rotates, the lifting frame can be driven to move upward and the clamping members can move inward; a movable telescopic plate is arranged on the base frame, a telescopic ladder is arranged on the telescopic plate, and when the telescopic plate moves to one side, the telescopic ladder can be unfolded to one side; the device has the advantages of efficient movement, flexible lifting, stable clamping and reasonable space utilization.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to a protective installation device for a temporary power transmission transformer. Background Art

[0002] In the modern power supply system, temporary transmission transformers play an indispensable role in many scenarios. However, the existing temporary transmission transformer protection and installation devices generally have some deficiencies in mobility, stability and safety. Traditional devices usually lack efficient moving and lifting mechanisms. When they need to be relocated, they often require a lot of manpower and material resources to carry and reinstall. They also lack effective height adjustment functions and cannot adapt to the height requirements of different terrains and usage scenarios. In the operation of temporary transmission transformers, stable installation and reliable clamping are crucial. When fixing the transformer, the existing devices have unreasonable designs of the clamping mechanisms, making it difficult to ensure that the transformer can remain stable under various working conditions.

[0003] To sum up, it is of great practical significance to develop a temporary transmission transformer protection and installation device that can be efficiently moved, flexibly lifted and lowered, stably clamped and has reasonable space utilization. It will effectively solve the shortcomings of the existing technology and meet the growing demand for temporary power supply. For this reason, a temporary transmission transformer protection and installation device is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The present invention aims to solve the above-mentioned problems in which current equipment or prior art has no suitable device and has insufficient mobility, stability and safety during use. The present invention provides a temporary protection and installation device for a power transmission transformer, which has efficient mobility, flexible lifting and lowering, stable clamping and reasonable space utilization.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: A protective installation device for a temporary power transmission transformer comprises a base frame, a plurality of movable wheels are arranged below the base frame, a lifting mechanism is arranged above the base frame, the lifting mechanism comprises a rotatable screw rod, a lifting frame is installed on the screw rod, a clamping mechanism is arranged on the lifting frame, the clamping mechanism comprises a plurality of clamping members, and when the screw rod rotates, the lifting frame can be driven to move upward and the clamping members can move inward; a movable telescopic plate is installed on the base frame, a telescopic ladder is arranged on the telescopic plate, and when the telescopic plate moves to one side, the telescopic ladder can be unfolded to one side.

[0006] The base frame is provided with a positioning frame, and a scissor-type telescopic frame is provided inside the positioning frame. One side of the lower end of the scissor-type telescopic frame is hinged on the positioning frame, and the other side of the lower end of the scissor-type telescopic frame is slidably connected to the inner wall of the positioning frame. One side of the upper end of the scissor-type telescopic frame is hinged on the lifting frame, and the other side of the upper end of the scissor-type telescopic frame is slidably connected to the inner wall of the lifting frame.

[0007] The four end corners of the base frame are respectively fixed with first locking members, the inner walls of the first locking members are respectively fixed with telescopic rods, the four end corners of the lifting frame are respectively fixed with second locking members, and the second locking members are respectively fixed to the upper ends of the corresponding telescopic rods.

[0008] A motor plate for mounting the motor is fixedly connected below the base frame, the shaft of the motor passes through the second through hole and is fixedly connected to the double-row sprocket and the gear, and the double-row sprocket is connected to the single-row sprocket fixedly connected below the screw rod using chains.

[0009] The clamping mechanism includes a connecting plate, which is fixedly connected to both sides of the lifting frame. The connecting plates are rotatably connected to the first bevel gears, which are slidably connected to the screw rods, and the first bevel gears are respectively meshed with the second bevel gears fixedly connected to one end of the second screw rod. The second screw rods are respectively threadedly connected to the sliding blocks, the upper ends of the sliding blocks are hinged to one end of the force sending rod, and the other ends of the force sending rod are hinged to both sides of the lower end of the turntable, and the force sending rod swings to drive the turntable to rotate.

[0010] The upper end of the rotating disk is hinged to one end of a plurality of evenly distributed pull rods, and the other end of the pull rod drives the clamping frame to move inward.

[0011] The lower end of the sliding block is hinged to one end of a connecting rod, and the connecting rod drives the shelf plate to extend and retract in the clamping frame.

[0012] The two sides of the telescopic plate are fixedly connected to the inner wall surfaces of the two sides of the base frame, and the inner wall of the telescopic plate is fixedly connected with a rack, which is meshed with the gear; the telescopic ladder is a step-by-step nested contraction structure, and the upper and lower ends of the telescopic ladder are respectively hinged on the lifting frame and the telescopic plate.

[0013] A contraction opening is also provided below the telescopic plate, and a rotating head is fixedly provided on the inner wall of the contraction opening. The rotating head is movably connected to the rotating opening provided at the end of the leg, and the contraction opening is fixedly connected to one end of the arc spring, and the other end of the arc spring is fixedly connected to the side of the leg.

[0014] Compared with the prior art, the present invention has the following advantages: Efficient power transmission and collaborative operation: one motor can drive the lifting mechanism, clamping mechanism, shelf and telescopic ladder to work together. The power transmission route is cleverly designed, and the components are closely matched. There is no need for multiple power sources, which greatly improves work efficiency. Through bevel gear transmission and a series of connecting rod structures, the clamping mechanism can be accurately controlled and the temporary transformer can be firmly fixed to ensure its safety and reliability during operation. Flexible extension and convenient adjustment: the engagement of the gear and rack drives the telescopic plate to extend and retract smoothly, and at the same time drives the nested extension and retraction of the telescopic ladder to meet the needs of different heights and usage scenarios, and the adjustment is convenient and quick. Compact structure and space saving: the nested design of the telescopic ladder assembly and the retractable leg structure can effectively save space when not in use. The entire device has a compact structure for easy transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a protective installation device for a temporary power transmission transformer of the present invention.

[0016] Figure 2 The present invention is a schematic diagram of a lifting mechanism of a temporary power transmission transformer protection installation device.

[0017] Figure 3 It is a partial schematic diagram of a lifting mechanism of a temporary power transmission transformer protection installation device of the present invention.

[0018] Figure 4 It is a bottom schematic diagram of a protective installation device for a temporary power transmission transformer of the present invention.

[0019] Figure 5 It is a schematic diagram above a protective installation device for a temporary power transmission transformer of the present invention.

[0020] Figure 6 It is a partial schematic diagram of a clamping mechanism of a protective installation device for a temporary power transmission transformer of the present invention.

[0021] Figure 7 The present invention is a schematic diagram of partial disassembly and assembly of a clamping mechanism of a temporary power transmission transformer protection installation device.

[0022] Figure 8 The present invention is a schematic diagram of a rotating disk of a protection installation device for a temporary power transmission transformer.

[0023] Fig. 9 It is a schematic diagram of a clamping mechanism of a protective installation device for a temporary power transmission transformer of the present invention.

[0024] Fig.10 It is a second disassembly and assembly schematic diagram of a clamping mechanism of a temporary power transmission transformer protection installation device of the present invention.

[0025] Fig.11 It is a schematic diagram of a sliding member of a protective installation device for a temporary power transmission transformer of the present invention.

[0026] Fig.12 It is a schematic diagram of a clamping disk of a protection installation device for a temporary power transmission transformer of the present invention.

[0027] Fig.13 The present invention is a schematic diagram of disassembling and assembling a shelf plate of a temporary power transmission transformer protection installation device.

[0028] Fig.14 It is a first schematic diagram of a telescopic ladder and a telescopic plate of a temporary power transmission transformer protection installation device of the present invention.

[0029] Fig.15It is the second schematic diagram of the telescopic ladder and telescopic plate of the temporary power transmission transformer protection installation device of the present invention.

[0030] Fig.16 It is a schematic diagram of a telescopic plate support leg of a protection installation device for a temporary power transmission transformer of the present invention.

[0031] Fig.17 The present invention is a schematic diagram of disassembly and assembly of the telescopic plate legs of a temporary power transmission transformer protection installation device.

[0032] Explanation of reference numerals in the figure: chassis 1, moving wheel 2, telescopic rod 3, first locking member 5, screw 6, temporary transformer 8, scissor-type telescopic frame 11, lifting frame 12, motor 14, motor plate 15, second locking member 16, positioning frame 18, single-row sprocket 27, gear 28, chain 29, first bevel gear 30, second bevel gear 31, clamping frame 32, second screw 33, connecting plate 34, sliding block 37, turntable 38, force delivery rod 40, movable port 41, third bearing seat 43, second rotating head 44, first rotating head 45, rotating plug 46, Pull rod 49, sliding member 50, clamping member 51, protrusion 52, groove ring 55, sliding head 56, socket 57, clamping plate 58, through hole 59, raised ring 60, groove 61, connecting rod 62, shelf plate 65, slider 66, slide rail 67, protrusion 68, telescopic plate 70, second through hole 75, double-row sprocket 76, first movable joint 78, telescopic ladder 80, second movable joint 82, rack 83, second slide rail 85, second slider 86, retractable mouth 88, arc spring 89, support leg 90, rotating head 91, rotating mouth 92. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0034] like Figure 1-17 As shown, the present invention provides a protective installation device for a temporary power transmission transformer, including a base frame 1, a plurality of movable wheels 2 are arranged below the base frame 1, a lifting mechanism is arranged above the base frame 1, the lifting mechanism includes a rotatable screw rod 6, a lifting frame 12 is installed on the screw rod 6, a clamping mechanism is arranged on the lifting frame 12, and the clamping mechanism includes a plurality of clamping members 51, when the screw rod 6 rotates, the lifting frame 12 can be driven to move upward and the clamping members 51 can move inward; a movable telescopic plate 70 is installed on the base frame 1, a telescopic ladder 80 is arranged on the telescopic plate 70, and when the telescopic plate 70 moves to one side, the telescopic ladder 80 can be unfolded to one side.

[0035] like Figure 1-11As shown, the base frame 1 serves as a basic supporting component, and a plurality of movable wheels 2 installed below enable the entire device to be easily moved. A lifting mechanism is arranged above the base frame 1, and the main components of the mechanism include rotatable screws 6 fixed to both sides of the base frame 1. When the screws 6 start to rotate, the lifting frame 12 connected to the screws 6 will move upward along the axial direction of the screws, and the clamping mechanism equipped on the lifting frame 12 includes a plurality of clamping members 51. During the rising process of the lifting frame 12, the clamping members 51 will move inward, thereby achieving a stable clamping of the temporary transformer 8; in addition, a movable telescopic plate 70 is installed on the base frame 1, and there is also a linkage between the telescopic plate 70 and the telescopic ladder 80. When the telescopic plate 70 moves to one side, it will drive the telescopic ladder 80 thereon to expand to one side synchronously, providing a convenient up and down passage for operators, and facilitating the operation and maintenance of temporary power transmission transformers at different working heights.

[0036] A positioning frame 18 is provided on the base frame 1, and a scissor-type telescopic frame 11 is provided inside the positioning frame 18. One side of the lower end of the scissor-type telescopic frame 11 is hinged on the positioning frame 18, and the other side of the lower end of the scissor-type telescopic frame 11 is slidably connected to the inner wall of the positioning frame 18. One side of the upper end of the scissor-type telescopic frame 11 is hinged on the lifting frame 12, and the other side of the upper end of the scissor-type telescopic frame 11 is slidably connected to the inner wall of the lifting frame 12.

[0037] like Figure 2-3 As shown, a positioning frame 18 is provided on the base frame 1, and the scissor-type telescopic frame 11 installed inside the positioning frame 18 is an important component for realizing the smooth operation of the lifting mechanism; one side of the lower end of the scissor-type telescopic frame 11 is connected to the positioning frame 18 in a hinged manner, so that the scissor-type telescopic frame 11 can flexibly rotate around the hinge point; and the other side of the lower end is slidably connected to the inner wall of the positioning frame 18, providing stable support and guidance for the scissor-type telescopic frame 11 during the sliding process; when the screw 6 rotates to drive the lifting frame to move upward, one side of the upper end of the scissor-type telescopic frame 11 is hinged on the lifting frame 12, and will be lifted as the lifting frame 12 rises. At the same time, the other side of the upper end of the scissor-type telescopic frame 11 slides on the inner wall of the lifting frame 12, ensuring the stability and synchronization of the scissor-type telescopic frame 11 during the extension process, so that when the lifting frame 12 is rising or falling, the scissor-type telescopic frame 11 can be extended or contracted accordingly to play a role in auxiliary support and stabilization of the lifting frame 12, ensuring the stability and safety of the entire lifting process.

[0038] The four corners of the base frame 1 are respectively fixed with first locking members 5 , the inner walls of the first locking members 5 are respectively fixed with telescopic rods 3 , the four corners of the lifting frame 12 are respectively fixed with second locking members 16 , and the second locking members 16 are respectively fixed to the upper ends of the corresponding telescopic rods 3 .

[0039] The first locking pieces 5 are fixedly connected to the four end corners of the base frame 1, and the telescopic rods 3 are fixedly installed on the inner walls of the first locking pieces 5. The four end corners of the lifting frame 12 are respectively fixedly connected with second locking pieces 16, and these second locking pieces 16 are fixedly connected to the corresponding upper ends of the telescopic rods 3. When the screw rod 6 rotates to drive the lifting frame 12 to perform a lifting movement, the telescopic rod 3 will also be synchronously extended and retracted. Since the lower end of the telescopic rod 3 is fixed to the first locking piece 5 of the base frame 1, and the upper end is connected to the second locking piece 16 of the lifting frame 12, during the process of the lifting frame 12 rising or falling, the telescopic rod 3 not only supports and stabilizes the lifting frame 12, but also ensures that the movement of the lifting frame 12 always remains in a relatively stable state to avoid shaking or deviation. The first locking piece 5 and the second locking piece 16 provide reliable connections between the telescopic rod 3 and the base frame 1 and the lifting frame 12, respectively, to ensure the stability of the entire linkage structure.

[0040] A motor plate 15 for mounting the motor 14 is fixedly connected below the base frame 1. The shaft of the motor 14 passes through the second through hole 75 and is fixedly connected to the double-row sprocket 76 and the gear 28. The double-row sprocket 76 is connected to the single-row sprocket 27 fixedly connected below the screw rod 6 using a chain 29.

[0041] like Figure 3-4 As shown, the motor plate 15 fixedly connected below the base frame 1 is used to install the motor 14, which becomes the power source of the entire lifting structure. The shaft of the motor 14 passes through the second through hole 75 and is fixedly connected to the double-row sprocket 76 and the gear 28. Once the motor 14 is started, the shaft will drive the double-row sprocket 76 and the gear 28 to rotate synchronously. The double-row sprocket 76 is connected to the single-row sprocket 27 fixedly connected below the screw 6 through the chain 29. When the double-row sprocket 76 rotates, under the transmission action of the chain 29, the single-row sprocket 27 will also rotate accordingly, thereby driving the screw 6 to start rotating.

[0042] The clamping mechanism includes a connecting plate 34, which is fixedly connected to both sides of the lifting frame 12. The connecting plates 34 are respectively rotatably connected to the first bevel gears 30, and the first bevel gears 30 are respectively slidably connected to the screw rod 6. The first bevel gears 30 are respectively meshed with the second bevel gears 31 fixed to one end of the second screw rod 33. The second screw rod 33 is respectively threadedly connected to a sliding block 37. The upper end of the sliding block 37 is hinged to one end of the force sending rod 40, and the other end of the force sending rod 40 is hinged to both sides of the lower end of the turntable 38. The force sending rod 40 swings to drive the turntable 38 to rotate.

[0043] like Figure 5-12As shown, the clamping mechanism includes a connecting plate 34, the first bevel gear 30 is rotatably connected to the connecting plates 34 fixed on both sides of the lifting frame 12, the first bevel gear 30 is splined to the screw 6, so that the first bevel gear 30 can slide up and down on the outer surface of the screw 6, and when the screw 6 rotates, it will drive the first bevel gear 30 to rotate synchronously, so that the first bevel gear 30 rotates during the lifting process, the first bevel gear 30 is respectively meshed with the second bevel gear 31 fixed to one end of the second screw 33, the second screw 33 is arranged in two groups under the clamping frame 32, and the outer ends of the two groups of second screws 33 are fixed with the second bevel gear 31, and the rotation of the first bevel gear 30 is transmitted to the second bevel gear 31 through this meshing relationship. , thereby driving the second screw 33 to start rotating. The second screw 33 is threadedly connected to the sliding block 37. As the second screw 33 rotates, the two groups of sliding blocks 37 will move linearly along the axial direction of the screw; the upper ends of the sliding blocks 37 are respectively hinged to one end of the force sending rod 40. When the sliding blocks 37 move linearly, the force sending rod 40 will be driven to swing through this hinge point. The other end of the force sending rod 40 is hinged to both sides of the lower end of the turntable 38. The swing of the force sending rod 40 will further drive the turntable 38 to rotate around the rotating plug 46 at its lower end. The rotating plug 46 is inserted into the inner ring of the third bearing seat 43 fixed on the clamping frame 32. The third bearing seat 43 ensures the stability and smoothness of the rotation of the turntable 38.

[0044] The upper end of the rotating disk 38 is hinged to one end of a plurality of evenly distributed pull rods 49, and the other end of the pull rods 49 drives the clamping frame 51 to move inward.

[0045] A plurality of tie rods 49 are evenly distributed on the upper end of the turntable 38, and the upper end of the turntable is hinged to one end of the tie rod 49, and the other end of the tie rod 49 is movably connected to a sliding head 56 provided at the bottom of the sliding member 50. During the swinging process of the tie rod 49, the sliding member 50 can be driven to slide in a plurality of through holes 59 provided in the clamping disk 58. The sliding member 50 is provided with a groove ring 55, and a raised ring 60 is provided on the inner wall surface of the through hole 59. The two cooperate with each other, which not only ensures the stability of the sliding member 50 during the sliding process, but also enables it to only move along a specific direction. The sliding member 50 can move in the through hole 59 along a certain trajectory, and can also prevent the sliding member 50 from unnecessary rotation or deviation during the movement; a socket 57 is provided above the sliding member 50 for fixing the protrusion 52 provided below the clamping member 51. When the sliding member 50 slides in the through hole 59, it will drive the clamping member 51 to move synchronously, and the groove 61 provided on the upper surface of the clamping plate 58 is specially used to place the temporary transformer 8. The temporary transformer 8 placed in the groove 61 is fixed during the entire mechanism linkage process.

[0046] The lower end of the sliding block 37 is hinged to one end of a connecting rod 62 , and the connecting rod 62 drives the shelf plate 65 to extend and retract in the clamping frame 32 .

[0047] like Fig.13 As shown, the lower end of the sliding block 37 is hinged to one end of the connecting rod 62. When the sliding block 37 moves, the connecting rod 62 is driven to perform corresponding telescopic or swinging movements. The other end of the connecting rod 62 is hinged to a protrusion 68 provided on the upper surface of the shelf plate 65. The movement of the connecting rod 62 will be further transmitted to the shelf plate 65. The wall surfaces on both sides of the shelf plate 65 are fixedly connected to the sliding block 66, and the sliding block 66 cooperates with the slide rail 67 arranged on the inner wall surface below the clamping frame 32. Driven by the connecting rod 62, the shelf plate 65 slides along the slide rail 67 through the sliding block 66. The shelf plate 65 can make corresponding movements according to the movement of the sliding block 37, and can be used to place tools or temporarily store small components related to the temporary power transmission transformer, etc. It works in conjunction with other components to facilitate the entire temporary power transmission transformer protection installation work, and further improves the functionality and practicality of the device.

[0048] The two sides of the telescopic plate 70 are fixedly connected to the inner wall surfaces of the base frame 1, and a rack 83 is fixedly connected to the inner wall of the telescopic plate 70, and the rack 83 is meshed with the gear 28; the telescopic ladder 80 is a step-by-step nested contraction structure, and the upper and lower ends of the telescopic ladder 80 are respectively hinged on the lifting frame 12 and the telescopic plate 70.

[0049] like Figure 14-17 As shown, the second sliders 86 fixed on both sides of the telescopic plate 70 are slidably connected with the second slide rails 85, and the second slide rails 85 are fixed to the inner side walls of the bottom of the base frame 1, so that the telescopic plate 70 can move smoothly along the second slide rails 85; the inner wall of the telescopic plate 70 is also fixed to the rack 83, and the motor 14 drives the gear 28 on the shaft to rotate, and the gear 28 is meshed with the rack 83. Therefore, when the gear 28 rotates, the telescopic plate 70 is driven to move linearly along the second slide rails 85 through the meshing action; the telescopic ladder 80 adopts a step-by-step nested contraction structure, the first movable joint 78 is fixed on the side wall of the lifting frame 12, and the side wall of the telescopic plate 70 is fixedly connected to the second movable joint 82. The upper and lower ends of 80 are movably connected with the first movable joint 78 and the second movable joint 82 respectively. When the telescopic plate 70 moves under the drive of the gear 28 and the rack 83, the telescopic ladder 80 will be driven to expand or retract through the second movable joint 82; at the same time, the lifting frame 12 performs lifting and lowering movements under the drive of the screw 6, which will affect the state of the telescopic ladder 80 through the first movable joint 78. The telescopic ladder 80 can flexibly adjust its own shape according to different working states of the device, provide a safe and convenient climbing channel for operators, and work in coordination with other components, further improve the functional system of the entire device, and meet various operational requirements during the installation of temporary power transmission transformer protection. A contraction opening 88 is also provided below the telescopic plate 70, and a rotating head 91 is fixedly provided on the inner wall of the contraction opening 88. The rotating head 91 is movably connected to a rotating opening 92 provided at the end of the support leg 90. The contraction opening 88 is fixedly connected to one end of an arc spring 89, and the other end of the arc spring 89 is fixedly connected to the side of the support leg 90.

[0050] The retractable plate 70 has a retractable opening 88, and a connecting head swivel head 91 is fixedly provided on the inner wall of the retractable opening 88. The swivel head 91 is movably connected to the swivel opening 92 opened at the end of the leg 90, so that the leg 90 can rotate around the swivel head 91 as the axis. One end of the arc spring 89 is also fixedly connected to the retractable opening 88, and the other end of the arc spring 89 is fixedly connected to the side of the leg 90. When the device is in a moving or non-working state, the leg 90 is pulled into the retractable opening 88 by the elastic force of the arc spring 89, presenting a retracted state, which is convenient for moving and storing the device. When the device needs to be fixed, the operator can manually pull the leg 90 out of the retractable opening 88 and rotate it to a certain angle so that the leg 90 contacts the ground, providing additional support and stability for the device. In this process, the arc spring 89 plays a role of buffering and positioning, ensuring the stability and reliability of the leg 90 during the extension and retraction process.

[0051] The use process of the protective installation device of a temporary power transmission transformer of the present invention is as follows: after the device is quickly positioned by the moving wheels, the motor can be started to drive the lifting frame to lift vertically (the scissor-type bracket and the telescopic rod are synchronized and stable), and at the same time, the rotation of the screw drives the clamping mechanism to automatically retract and clamp the transformer, and the telescopic plate moves laterally with the meshing of the gear rack and synchronously unfolds the telescopic ladder to form an operating channel, realizing lifting, clamping, and climbing in one step; the whole process adopts a mechanical linkage design, and is controlled by a single power source of the motor, and has the functions of lifting anti-sway, adaptive clamping and multi-level ladder adjustment, which meets the needs of rapid installation and maintenance of temporary transformers.

[0052] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A protective installation device for a temporary power transmission transformer, comprising a base frame (1), a plurality of movable wheels (2) being arranged below the base frame (1), characterized in that: A lifting mechanism is arranged above the base frame (1), the lifting mechanism comprising a rotatable screw rod (6), the screw rod (6) being mounted with a lifting frame (12), the lifting frame (12) being provided with a clamping mechanism, the clamping mechanism comprising a plurality of clamping members (51), and when the screw rod (6) is rotated, the lifting frame (12) can be driven to move upward and the clamping members (51) can be moved inward; a movable telescopic plate (70) is mounted on the base frame (1), the telescopic plate (70) being provided with a telescopic ladder (80), and when the telescopic plate (70) moves to one side, the telescopic ladder (80) can be unfolded to one side.

2. A temporary power transmission transformer protection installation device as claimed in claim 1, characterized in that: The base frame (1) is provided with a positioning frame (18), and a scissor-type telescopic frame (11) is provided inside the positioning frame (18); one side of the lower end of the scissor-type telescopic frame (11) is hinged on the positioning frame (18), and the other side of the lower end of the scissor-type telescopic frame (11) is slidably connected to the inner wall of the positioning frame (18); one side of the upper end of the scissor-type telescopic frame (11) is hinged on the lifting frame (12), and the other side of the upper end of the scissor-type telescopic frame (11) is slidably connected to the inner wall of the lifting frame (12).

3. A temporary power transmission transformer protection installation device as claimed in claim 2, characterized in that: The base frame (1) is respectively fixedly connected to first locking members (5) at four end corners, the inner wall of the first locking member (5) is respectively fixedly connected to telescopic rods (3), the lifting frame (12) is respectively fixedly connected to second locking members (16) at four end corners, and the second locking members (16) are respectively fixedly connected to the upper ends of the corresponding telescopic rods (3).

4. A temporary power transmission transformer protection installation device as claimed in claim 3, characterized in that: A motor plate (15) for mounting a motor (14) is fixedly connected below the base frame (1); a shaft of the motor (14) passes through a second through hole (75) and is fixedly connected to a double-row sprocket (76) and a gear (28); the double-row sprocket (76) is respectively connected to a single-row sprocket (27) fixedly connected below the screw rod (6) by a chain (29).

5. A temporary power transmission transformer protection installation device as claimed in claim 1, characterized in that: The clamping mechanism comprises a connecting plate (34), the connecting plate (34) being fixedly connected to both sides of the lifting frame (12), the connecting plate (34) being rotatably connected to first bevel gears (30), the first bevel gears (30) being slidably connected to the screw rod (6), the first bevel gears (30) being respectively meshed with second bevel gears (31) fixedly connected to one end of a second screw rod (33), the second screw rod (33) being threadedly connected to sliding blocks (37), the upper end of the sliding blocks (37) being hinged to one end of a force delivery rod (40), the other end of the force delivery rod (40) being hinged to both sides of the lower end of a rotating disk (38), and the force delivery rod (40) swinging to drive the rotating disk (38) to rotate.

6. A temporary power transmission transformer protection installation device as claimed in claim 5, characterized in that: The upper end of the rotating disk (38) is hinged to one end of a plurality of evenly distributed pull rods (49), and the other end of the pull rods (49) drives the clamping frame (51) to move inward.

7. A temporary power transmission transformer protection installation device as claimed in claim 6, characterized in that: The lower end of the sliding block (37) is hinged to one end of a connecting rod (62), and the connecting rod (62) drives the shelf plate (65) to extend and retract in the clamping frame (32).

8. A temporary power transmission transformer protection installation device as claimed in claim 1, characterized in that: The two sides of the telescopic plate (70) are fixedly connected to the inner wall surfaces of the base frame (1) on both sides; a rack (83) is fixedly connected to the inner wall of the telescopic plate (70); the rack (83) is meshed with the gear (28); the telescopic ladder (80) is a step-by-step nested retractable structure; the upper and lower ends of the telescopic ladder (80) are respectively hinged on the lifting frame (12) and the telescopic plate (70).

9. A temporary power transmission transformer protection installation device as claimed in claim 8, characterized in that: A contraction opening (88) is further provided below the telescopic plate (70), a rotating head (91) is fixedly provided on the inner wall surface of the contraction opening (88), the rotating head (91) is movably connected to a rotating opening (92) provided at the end of the supporting leg (90), the contraction opening (88) is fixedly connected to one end of an arc spring (89), and the other end of the arc spring (89) is fixedly connected to the side surface of the supporting leg (90).

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