Lifting device for power construction

Abstract

The invention belongs to the technical field of electric power construction, and particularly provides a lifting device for electric power construction, which is composed of a connecting plate and two groups of half-packed lifters which are movably arranged on the connecting plate, are consistent in structure and can be butted, and each half-packed lifter comprises a base, a telescopic support rod, an upper semi-ring plate, a telescopic lifter and a lower semi-ring plate, the base is slidably clamped to the upper wall of the connecting plate, the telescopic supporting rod is fixedly arranged on the upper wall of the base, the upper semi-ring plate is fixedly connected to the upper end of a telescopic part of the telescopic supporting rod, the telescopic lifter is vertically slidably arranged on the outer arc side wall of the upper semi-ring plate, and the lower semi-ring plate is vertically slidably arranged on the telescopic lifter. The semi-enclosed lifter is creatively designed, the electric pole is alternately locked and released by the upper semi-ring plate and the lower semi-ring plate through reciprocating telescopic power provided by the telescopic lifter, so that the technical effects of alternate ascending and alternate descending are achieved, the lifting action depends on the electric pole, an omnidirectional working platform can be provided for constructors, and the working efficiency is improved. And the stability is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power construction, and in particular relates to a lifting device for electric power construction. Background Art

[0002] During power construction, construction workers need to climb up the poles to install accessories and tighten the wire groups. Currently, most of them rely on manual climbing of pedals or foot clips, which is very dangerous. The lifting devices used in power construction in the existing technology also have many technical problems: (1) Most of the lifting devices used for power construction in the prior art are independent lifting systems that are not connected to the poles. Therefore, the aerial work platforms they provide are difficult to cover the area around the poles, making it inconvenient for construction workers to install accessories. (2) Due to the use of independent lifting, the aerial work platform of the existing lifting device for power construction has poor stability and obvious shaking during high-altitude operations, which seriously affects the efficiency of power construction and is dangerous. Summary of the Invention

[0003] In response to the above technical problems, the present invention provides a lifting device for power construction, which creatively designs a semi-enclosed lift. The reciprocating telescopic power provided by the telescopic lifter is used to enable the upper half ring plate and the lower half ring plate to alternately lock and release the pole, thereby achieving the technical effect of alternating ascent and descent. The lifting action relies on the pole, which not only provides an omnidirectional working platform for construction personnel, but also has higher stability.

[0004] The technical solution adopted by the present invention is as follows: This solution provides a lifting device for power construction, which consists of a connecting plate and two groups of semi-enclosed elevators with the same structure and can be docked on the connecting plate. The semi-enclosed elevator includes a base, a telescopic support rod, an upper semi-ring plate, a telescopic lifter, a lower semi-ring plate and a work basket. The base is slidably connected to the upper wall of the connecting plate, the lower end of the telescopic support rod is fixedly arranged on the upper wall of the base, the upper semi-ring plate is fixedly connected to the upper end of the telescopic part of the telescopic support rod, the telescopic lifter is vertically slidably arranged on the outer arc side wall of the upper semi-ring plate, and the lower semi-ring plate is vertically slidably arranged on the telescopic lifter. A connecting frame is fixedly provided on the outer arc wall of the upper half ring plate, and the upper half ring plate is fixedly connected to the upper end of the telescopic part of the telescopic support rod through the connecting frame. Connecting rods are symmetrically fixedly provided on the lower edges of the two side walls of the connecting frame. The upper edge of the work basket is fixedly provided on the lower end of the connecting rod, and the work basket is fixedly connected to the outer arc wall of the upper half ring plate through the connecting frame and the connecting rod. When the two groups of half-wrapped lifts are close to each other, the upper half ring plates of the two groups of half-wrapped lifts are engaged, and the lower half ring plates of the two groups of half-wrapped lifts are engaged, forming two complete annular encirclements to wrap the electric pole, and the two work baskets are spliced ​​into a complete work platform.

[0005] In this solution, an upper gear is provided in the middle of the outer arc wall of the upper semi-ring plate for rotation, and an upper buckle is provided in the middle of the inner arc wall of the upper semi-ring plate for rotation. The rotating shaft of the upper gear passes through the upper semi-ring plate and is fixedly connected to the middle of the upper buckle. A lower gear is provided in the middle of the outer arc wall of the lower semi-ring plate for rotation, and a lower buckle is provided in the middle of the inner arc wall of the lower semi-ring plate for rotation. The rotating shaft of the lower gear passes through the lower semi-ring plate and is fixedly connected to the middle of the lower buckle. The upper buckle and the lower buckle have the same structure and are both curved components, so that they can clamp the pole after rotation.

[0006] The telescopic lifter consists of a reciprocating electric push rod and two sets of sliding frames. The upper sliding frame is fixedly connected to the output end of the reciprocating electric push rod, and the lower sliding frame is fixedly connected to the base end of the reciprocating electric push rod. The upper sliding frame slides vertically on the outer arc wall of the upper semi-ring plate, and the lower sliding frame is vertically slidably connected to the outer arc wall of the lower semi-ring plate. A tension spring is connected between the top wall of the upper sliding frame and the top and lower wall of the connecting frame of the outer arc side wall of the upper semi-ring plate. The inner wall of the sliding frame slides horizontally with a linkage frame, and the side wall of the sliding frame is rotated through with an adjusting screw, and the thread of the adjusting screw is adjusted The linkage frame is set up throughout, and the upper sliding frame realizes the transmission setting with the upper buckle rod through the linkage frame and the upper gear inside it, and the lower sliding frame realizes the transmission setting with the lower buckle rod through the linkage frame and the lower gear inside it. Specifically, a first rack is fixedly provided on one side wall of the linkage frame, and a second rack is fixed on the other side wall of the linkage frame. The first rack and the second rack are arranged opposite to each other, and the first rack and the second rack in the upper sliding frame are alternately engaged with the upper gear, and the first rack and the second rack in the lower sliding frame are alternately engaged with the lower gear.

[0007] In order to ensure that the upper and lower half ring plates can be automatically and temporarily locked on the pole, an upper friction locker is provided on the inner arc wall surface of the upper half ring plate, and a lower friction locker is provided on the inner arc wall surface of the lower half ring plate. The upper friction locker and the lower friction locker have the same structure.

[0008] Furthermore, a hydraulic oil tank is provided on the connecting plate, which stores hydraulic oil in the hydraulic oil tank. An oil pipe is provided on the lower edge of the side wall of the hydraulic oil tank. The base of the telescopic strut is connected to the oil pipe through a pressure hose. A solenoid valve is connected to the oil pipe. The solenoid valve is electrically connected to the reciprocating electric push rod. When the reciprocating electric push rod is extended, the solenoid valve is energized and opened. When the reciprocating electric push rod is in a stationary state or a retracted state, the solenoid valve is de-energized and in a closed state.

[0009] The beneficial effects achieved by the present invention are as follows: (1) In order to solve the problem that the lifting technology in the prior art has no connection with the pole and has poor stability, the present invention creatively designs a semi-enclosed lifter. The reciprocating telescopic power provided by the telescopic lifter enables the upper and lower half ring plates to alternately lock and release the pole, thereby achieving the technical effect of alternating ascent and descent. The lifting action relies on the pole, which not only provides an omnidirectional working platform for construction workers, but also has higher stability. (2) The meshing state of the linkage frame and the upper and lower gears provided in the telescopic lifter is adjusted to control the rotation direction of the upper and lower buckle rods, thereby enabling the upper and lower half ring plates to rise alternately during the rising phase and to descend alternately during the descending phase; (3) The upper friction locker and the lower friction locker ensure that the upper half ring plate and the lower half ring plate can be automatically and temporarily locked on the pole, thereby ensuring the effective execution of the reciprocating electric push rod; (4) When the two sets of half-wrapped lifts are close to each other, the upper half ring plates of the two sets of half-wrapped lifts are locked together, and the lower half ring plates of the two sets of half-wrapped lifts are locked together, forming two complete annular encirclements, wrapping the poles, and the two working baskets are spliced ​​into a complete working platform; (5) The solenoid valve is only energized and opened when the reciprocating electric push rod performs the extension action. This ensures that when the reciprocating electric push rod performs the extension action, the hydraulic oil inside the telescopic support rod will not flow back into the hydraulic oil tank. The hydraulic oil inside the telescopic support rod provides a supporting force for the upper half ring plate and the work basket, preventing the risk of the work basket and the electric pole loosening and suddenly falling. In addition, during the descent stage, due to the aperture limitation of the variable diameter through hole, the hydraulic oil reflux speed is relatively slow, and there is no risk of the telescopic support rod suddenly contracting and causing the work basket to suddenly fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of a lifting device for power construction proposed by the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a lifting device for power construction proposed by the present invention. Figure 2 ; Figure 3 This is a schematic diagram of a half-section structure of a lifting device for electric power construction proposed by the present invention; Figure 4 The structure diagram of the upper half ring plate, telescopic lifter and lower half ring plate in the present invention is shown in FIG. Figure 1 ; Figure 5 The structure diagram of the upper half ring plate, telescopic lifter and lower half ring plate in the present invention is shown in FIG. Figure 2 ; Figure 6 Schematic diagram of the structure of the telescopic lifter in the present invention; Figure 7 is a top sectional view of the upper friction locker of the present invention; Figure 8 for Figure 3 A partial enlarged view of part A in FIG; Figure 9 It is a schematic cross-sectional structural diagram of the oil circuit switch in the present invention.

[0011] Among them, 1, connecting plate, 10, pole slot, 11, hydraulic oil tank, 12, oil pipe, 121, solenoid valve, 122, reversing valve, 123, valve housing, 124, one-way disc, 125, rotary handle, 126, reducing hole, 127, blocking ball, 128, blocking spring, 13, pressure hose, 2, half-package lift, 3, base, 4, telescopic support rod, 5, upper half ring plate, 50, connecting frame, 501, connecting rod, 51, upper gear, 52, Upper buckle, 53, upper friction locker, 531, telescopic cylinder, 532, sliding rod, 533, friction block, 534, locking spring, 6, telescopic lifter, 61, reciprocating electric push rod, 62, sliding frame, 621, linkage frame, 622, adjusting screw, 623, knob, 624, first rack, 625, second rack, 63, tension spring, 7, lower half ring plate, 71, lower gear, 72, lower buckle, 73, lower friction locker, 8, work basket.

[0012] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0013] Example 1: Please refer to Figures 1-9This embodiment provides a lifting device for electric power construction, which consists of a connecting plate 1 and two sets of semi-enclosed lifts 2 with the same structure and can be docked on the connecting plate 1. The connecting plate 1 is provided with a pole slot 10, and the pole slot 10 is located in the middle of the two sets of semi-enclosed lifts 2. When in use, the pole enters the pole slot 10. The semi-enclosed lift 2 includes a base 3, a telescopic support rod 4, an upper semi-ring plate 5, a telescopic lifter 6, a lower semi-ring plate 7 and a work basket 8. The base 3 is slidably connected to the connecting plate 1 The upper wall, the lower end of the telescopic support rod 4 is fixed to the upper wall of the base 3, the upper half ring plate 5 is fixedly connected to the upper end of the telescopic part of the telescopic support rod 4, the telescopic lifter 6 is vertically slidably arranged on the outer arc side wall of the upper half ring plate 5, and the lower half ring plate 7 is vertically slidably arranged on the telescopic lifter 6. A connecting frame 50 is fixedly provided on the outer arc wall of the upper half ring plate 5. The upper half ring plate 5 is fixedly connected to the upper end of the telescopic part of the telescopic support rod 4 through the connecting frame 50. Connecting rods 501 are symmetrically fixed along the lower edges of the two side walls of the connecting frame 50. The working basket 8 The upper edge is fixed to the lower end of the connecting rod 501, and the working basket 8 is fixedly connected to the outer arc wall of the upper half ring plate 5 through the connecting frame 50 and the connecting rod 501. A hydraulic oil tank 11 is provided on the connecting plate 1, and the hydraulic oil tank 11 stores hydraulic oil. The lower edges of the two side walls of the hydraulic oil tank 11 are connected with oil pipes 12 respectively. The bases of the two telescopic struts 4 are respectively connected with the oil pipes 12 through pressure hoses 13. The upper half ring plates 5 in the two groups of half-packed lifts 2 are respectively provided with corresponding ones on the opposite sides. The mutually cooperating buckles and slots (not shown in the figure) enable them to be spliced ​​and engaged. Similarly, the lower half ring plate 7 in the two groups of half-wrapped elevators 2 also adopts the same design, and the facing side walls of the work baskets 8 in the two groups of half-wrapped elevators 2 are also respectively provided with mutually cooperating buckles and slots (not shown in the figure). Therefore, when the two groups of half-wrapped elevators 2 are close to each other and engaged, the upper half ring plate 5 and the lower half ring plate 7 form two complete annular encirclements, wrapping the poles, and the two work baskets 8 are spliced ​​into a complete work platform.

[0014] In this solution, an upper gear 51 is rotatably provided in the middle of the outer arc wall of the upper semi-ring plate 5, and an upper buckle rod 52 is rotatably provided in the middle of the inner arc wall of the upper semi-ring plate 5. The rotating shaft of the upper gear 51 passes through the upper semi-ring plate 5 and is fixedly connected to the middle of the upper buckle rod 52. A lower gear 71 is rotatably provided in the middle of the outer arc wall of the lower semi-ring plate 7, and a lower buckle rod 72 is rotatably provided in the middle of the inner arc wall of the lower semi-ring plate 7. The rotating shaft of the lower gear 71 passes through the lower semi-ring plate 7 and is fixedly connected to the middle of the lower buckle rod 72. The upper buckle rod 52 and the lower buckle rod 72 have the same structure and are both curved components. The outer walls of the upper buckle rod 52 and the lower buckle rod 72 are covered with anti-slip rubber. The upper buckle rod 52 and the lower buckle rod 72 are the same as the foot buckles for manually climbing electric poles in the prior art, and can clamp the electric pole with the help of the friction generated by gravity after the rotation angle.

[0015] The telescopic lifter 6 is composed of a reciprocating electric push rod 61 and two groups of sliding frames 62. The upper sliding frame 62 is fixedly connected to the output end of the reciprocating electric push rod 61, and the lower sliding frame 62 is fixedly connected to the base end of the reciprocating electric push rod 61. The oil pipe 12 is connected with a solenoid valve 121, and the solenoid valve 121 is electrically connected to the reciprocating electric push rod 61. When the reciprocating electric push rod 61 is extended, the solenoid valve 121 is energized and opened. When the reciprocating electric push rod 61 is in a stationary state and a contracted state, the solenoid valve 121 is de-energized and in a closed state. The upper sliding frame 62 is vertically slidably arranged on the outer arc wall surface of the upper semi-ring plate 5, and the lower sliding frame 62 is vertically slidably connected to the outer arc wall surface of the lower semi-ring plate 7. The top wall of the upper sliding frame 62 is connected to the outer arc side wall of the upper semi-ring plate 5 A tension spring 63 is connected between the top and lower walls of the connecting frame 50, and a linkage frame 621 is provided on the inner wall of the sliding frame 62 for horizontal sliding. An adjusting screw 622 is provided to rotate through the side wall of the sliding frame 62, and a knob 623 is fixed to the outer end of the adjusting screw 622. The adjusting screw 622 threadably passes through the linkage frame 621, and a first rack 624 is fixed on one side wall of the linkage frame 621, and a second rack 625 is fixed on the other side wall of the linkage frame 621. The first rack 624 and the second rack 625 are arranged opposite to each other, and the first rack 624 and the second rack 625 in the upper sliding frame 62 are alternately meshed with the upper gear 51, and the first rack 624 and the second rack 625 in the lower sliding frame 62 are alternately meshed with the lower gear 71.

[0016] In order to ensure that the upper half ring plate 5 and the lower half ring plate 7 can be automatically locked on the pole without external interference, an upper friction locker 53 is provided on the inner arc wall surface of the upper half ring plate 5, and a lower friction locker 73 is provided on the inner arc wall surface of the lower half ring plate 7. The upper friction locker 53 and the lower friction locker 73 have the same structure. The upper friction locker 53 includes a telescopic cylinder 531, a sliding rod 532 and a friction block 533. The telescopic cylinder 531 is fixedly arranged on the inner arc wall surface of the upper half ring plate 5, the sliding rod 532 is slidably arranged in the telescopic cylinder 531, and the friction block 533 is fixedly arranged at the outer end of the sliding rod 532. A locking spring 534 is provided inside the telescopic cylinder 531, and the two ends of the locking spring 534 are fixedly connected to the inner end wall of the telescopic cylinder 531 and the end of the sliding rod 532 respectively.

[0017] In order to further ensure the safety of the equipment, a reversing valve 122 is connected to the oil pipe 12. The reversing valve 122 is a reversible one-way valve structure. The reversing valve 122 includes a valve housing 123, a one-way disc 124 and a handle 125. The valve housing 123 is connected to the middle of the oil pipe 121. The one-way disc 124 is rotatably attached to the inner wall of the valve housing 123. The handle 125 is rotatably attached to the outer wall of the valve housing 123. The rotating shaft of the handle 125 passes through the valve housing 123 and is fixedly connected to the one-way disc 124. Next, a variable diameter through hole 126 is opened inside the one-way disk 124, and the variable diameter through hole 126 is composed of a large hole and a small hole connected. A blocking ball 127 is movably provided inside the variable diameter through hole 126, and the diameter of the blocking ball 127 is between the inner diameters of the small hole and the large hole. A blocking spring 128 is connected to the inside of the variable diameter through hole 126, and the end of the blocking spring 128 is fixedly connected to the blocking ball 127. The blocking ball 127 blocks the variable diameter through hole 126 under the elastic force of the blocking spring 128.

[0018] When the present embodiment is in use, the reciprocating electric push rod 61 reciprocates and contracts, thereby controlling the upper half ring plate 5 and the lower half ring plate 7 to alternately move up and down along the pole, thereby enabling the working basket 8 to be raised and lowered.

[0019] The specific usage process is as follows: in the initial state, the two groups of half-wrapped elevators 2 are away from each other, and the lifting device for power construction in this embodiment is placed next to the pole, and the pole is placed in the pole groove 10. The two groups of half-wrapped elevators 2 are located on both sides of the pole, and the construction workers who need to climb into the work basket 8. The ground construction workers splice and engage the two groups of half-wrapped elevators 2, and the base 3 slides close on the connecting plate 1, so that the upper half ring plate 5 and the lower half ring plate 7 form two complete annular encirclements to wrap the pole. The upper half ring plate 5 and the lower half ring plate 7 can rely on the locking spring 534 in the upper friction lock 53 and the lower friction lock 73 to make the friction block 533 close to the pole, thereby temporarily locking it on the pole, and the two work baskets 8 are spliced ​​into a complete work platform.

[0020] Ascending conditions: When rising along the pole, the first rack 624 in the linkage frame 621 performs transmission control, that is, the first rack 624 in the upper sliding frame 62 is engaged with the upper gear 51, and the first rack 624 in the lower sliding frame 62 is engaged with the lower gear 71, and the small hole of the reducing through hole 126 of the one-way disk 124 is close to the hydraulic oil tank 11, and the large hole is away from the hydraulic oil tank 11.

[0021] The construction personnel start the reciprocating electric push rod 61 to reciprocate and extend, and start to rise. When the reciprocating electric push rod 61 is extended, the sliding frame 62 below will move downward relative to the lower half ring plate 7. The first rack 624 in the sliding frame 621 enables the lower gear 71 to drive the lower buckle rod 72 to rotate and lock the pole. The lower buckle rods 72 in the two sets of lower half ring plates 7 jointly lock the pole, so that the lower half ring plate 7 is fastened to the pole and cannot slide down (the same principle as the foot buckle climbing). The output end of the reciprocating electric push rod 61 moves to The upward movement causes the upper sliding frame 62 to move upward, and the first rack 624 in the upper sliding frame 62 causes the upper gear 51 to drive the upper buckle rod 52 to rotate in the opposite direction. The upper buckle rod 52 rotating in the opposite direction does not lock the pole, but is in a released state. Therefore, after the two ends of the upper buckle rod 52 are pressed against the inner wall of the upper semi-annular plate 5, the upper buckle rod 52 rotates in the opposite direction to the limit, and the reciprocating electric push rod 61 pushes the upper semi-annular plate 5 to move upward along the pole through the upper sliding frame 62, thereby causing the work basket 8 to rise for the first time; When the reciprocating electric push rod 61 is extended, the solenoid valve 121 is energized and opened, and the upper half ring plate 5 moves upward to drive the telescopic strut 4 to extend, thereby sucking the hydraulic oil inside the hydraulic oil tank 11 into the telescopic strut 4 through the oil pipe 12. During this process, the hydraulic oil can push the blocking ball 127 to loosen, thereby smoothly passing through the variable diameter through hole 126.

[0022] When the reciprocating electric push rod 61 contracts, the movement directions of the two slide frames 62 are exchanged, that is, the upper slide frame 62 moves downward and the lower slide frame 62 moves upward, so that the lower buckle rod 72 releases the pole, and the upper buckle rod 52 begins to lock the pole. As the reciprocating electric push rod 61 contracts, it can drive the lower half ring plate 7 to move upward along the pole through the lower slide frame 62. At this time, the upper half ring plate 5 locks the pole, and the work basket 8 is in a stationary state. Since the solenoid valve 121 is in a power-off closed state, the hydraulic oil inside the telescopic support rod 4 will not flow back into the hydraulic oil tank 11. The hydraulic oil inside the telescopic support rod 4 also provides supporting force for the upper half ring plate 5 and the work basket 8, preventing the risk of the work basket 8 and the pole loosening and suddenly falling.

[0023] The above process is an ascending process, and then the reciprocating electric push rod 61 continues to perform the telescopic action, so that the upper half ring plate 5 and the lower half ring plate 7 rise alternately, and the above ascending process is continuously repeated, so that the working basket 8 rises intermittently, thereby realizing the ascending operation.

[0024] Descent condition: After the operation is completed, the work basket 8 needs to be lowered and returned to the initial state. The construction workers in the work basket 8 turn all the knobs 623 to rotate the adjusting screw 622, so that the linkage frame 621 slides and shifts in the sliding frame 62, and the first racks 624 in the two sets of linkage frames 621 disengage from the upper gear 51 and the lower gear 71 respectively, and the second racks 625 in the two sets of linkage frames 621 engage with the upper gear 51 and the lower gear 71 respectively. In this process, the setting of the tension spring 63 ensures that the telescopic lifter 6 is in a stable state, and since the solenoid valve 121 is powered off and in a closed state, the hydraulic oil in the telescopic support rod 4 can ensure that the upper half ring plate 5 and the lower half ring plate 7 are in a stable state, and there is no risk of sliding along the pole. The ground construction workers turn the handle 125 to rotate the one-way disk 124 180 degrees, and the one-way disk 124 is in Figure 9 The state is that the small hole of the variable diameter through hole 126 is far away from the hydraulic oil tank 11, and the large hole is close to the hydraulic oil tank 11.

[0025] Then the control of the reciprocating electric push rod 61 to perform the telescopic action is started again. When the reciprocating electric push rod 61 is extended, the upper sliding frame 62 has a tendency to move upward relative to the upper half ring plate 5. Since the second rack 625 is engaged with the upper gear 51, at this time, the second rack 625 will drive the upper buckle rod 52 to rotate (opposite to the rotation direction in the ascending stage) through the upper gear 51 and buckle the pole, so that the upper half ring plate 5 locks the pole and is in a stationary state, and the base of the reciprocating electric push rod 61 drops, so that the second rack 625 in the lower sliding frame 62 drives the lower gear 71 and the lower buckle The rod 72 rotates (in the opposite direction to that in the ascending stage) and releases the electric rod, thereby utilizing the friction between the lower buckle rod 72 and the lower semi-ring plate 7 to push the lower semi-ring plate 7 down. In this process, the reciprocating electric push rod 61 is in an extension action, and the solenoid valve 121 is in an energized and open state. The hydraulic oil in the telescopic support rod 4 can be smoothly pressed into the oil pipe 121 and pass through the variable diameter through hole 126 to return to the inside of the hydraulic oil tank 11. Due to the aperture limitation of the variable diameter through hole 126, the hydraulic oil reflux speed is relatively slow, and there is no risk of the telescopic support rod 4 suddenly contracting and causing the work basket 8 to suddenly drop.

[0026] When the reciprocating electric push rod 61 contracts, the lower buckle rod 72 in the lower half ring plate 7 locks the pole, and the upper buckle rod 52 in the upper half ring plate 5 releases the pole. The reciprocating electric push rod 61 drives the upper half ring plate 5 to descend, thereby causing the work basket 8 to descend.

[0027] The above process is a descending process, and then the reciprocating electric push rod 61 continues to perform the telescopic action, so that the upper half ring plate 5 and the lower half ring plate 7 descend alternately, and the above descending process is repeated continuously, so that the working basket 8 descends intermittently, thereby returning to the initial state.

[0028] After the operation is completed, the two sets of half-packed lifts 2 can be disassembled to proceed to the next construction.

[0029] The present invention and its embodiments are described above. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto.

Claims

1. A lifting device for electric power construction, comprising a connecting plate (1), characterized in that: Two groups of half-enclosed elevators (2) with the same structure and capable of docking are movably provided on the connecting plate (1). The half-enclosed elevator (2) includes a base (3), a telescopic support rod (4), an upper half-ring plate (5), a telescopic elevator (6), a lower half-ring plate (7) and a work basket (8). The base (3) is slidably connected to the upper wall of the connecting plate (1). The lower end of the telescopic support rod (4) is fixedly provided on the upper wall of the base (3). The upper half-ring plate (5) is fixedly connected to the upper end of the telescopic portion of the telescopic support rod (4). The telescopic elevator (6) is vertically slidably provided on the outer arc side wall of the upper half-ring plate (5). The lower half-ring plate (7) is vertically slidably provided on the telescopic elevator (6). A connecting frame (50) is fixedly provided on the outer arc wall surface of the upper half-ring plate 5. Connecting rods (501) are symmetrically fixedly provided on the lower edges of the two side walls of the connecting frame (50). The work basket (8) is fixedly connected to the outer arc wall surface of the upper half-ring plate (5) through the connecting frame (50) and the connecting rod (501).

2. A lifting device for electric power construction according to claim 1, characterized in that: An upper buckle rod (52) is rotatably provided at the middle of the inner arc wall of the upper semi-annular plate (5), and a lower buckle rod (72) is rotatably provided at the middle of the inner arc wall of the lower semi-annular plate (7).

3. A lifting device for electric power construction according to claim 2, characterized in that: The telescopic lifter (6) is composed of a reciprocating electric push rod (61) and two sets of slide frames (62). The upper slide frame (62) is fixedly connected to the output end of the reciprocating electric push rod (61), and the lower slide frame (62) is fixedly connected to the base end of the reciprocating electric push rod (61). The upper slide frame (62) is vertically slidable on the outer arc wall of the upper semi-ring plate (5), and the lower slide frame (62) is vertically slidably connected to the outer arc wall of the lower semi-ring plate (7).

4. A lifting device for electric power construction according to claim 3, characterized in that: The inner wall of the sliding frame (62) is provided with a linkage frame (621) for horizontal sliding. The side wall of the sliding frame (62) is provided with an adjusting screw (622) for rotation. The adjusting screw (622) is threadedly provided through the linkage frame (621). The linkage frames (621) in the two sets of sliding frames (62) are respectively provided with a transmission arrangement with the upper buckle rod (52) and the lower buckle rod (72).

5. The lifting device for electric power construction according to claim 3, characterized in that: A tension spring (63) is connected between the top wall of the upper sliding frame (62) and the outer arc side wall of the upper semi-annular plate (5).

6. The lifting device for electric power construction according to claim 3, characterized in that: A hydraulic oil tank (11) is provided on the connecting plate (1), an oil pipe (12) is provided at the lower edge of the side wall of the hydraulic oil tank (11), and the base of the telescopic support rod (4) is connected to the oil pipe (12).

7. The lifting device for electric power construction according to claim 6, characterized in that: The oil pipe (12) is connected to a solenoid valve (121), which is electrically connected to the reciprocating electric push rod (61).

8. The lifting device for electric power construction according to claim 1, characterized in that: An upper friction locker (53) is provided on the inner arc wall surface of the upper half ring plate (5), and a lower friction locker (73) is provided on the inner arc wall surface of the lower half ring plate (7).

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