Lifting device for electric power construction

Abstract

The application belongs to the technical field of electric power construction, and specifically provides a lifting device for electric power construction, which is composed of a connecting plate and two groups of half-pack elevators with consistent structures and capable of being docked and movably arranged on the connecting plate. The half-pack elevator comprises a base, an extension support rod, an upper half-ring plate, an extension lifter and a lower half-ring plate. The base is slidingly and clippingly arranged on the upper wall of the connecting plate. The extension support rod is fixedly arranged on the upper wall of the base. The upper half-ring plate is fixedly connected to the upper end of the extension part of the extension support rod. The extension lifter is vertically and slidingly arranged on the outer arc side wall of the upper half-ring plate. The lower half-ring plate is vertically and slidingly arranged on the extension lifter. The half-pack elevator is creatively designed. The reciprocating extension power provided by the extension lifter is used to alternately lock and release the electric pole by the upper half-ring plate and the lower half-ring plate, so that the technical effects of alternating ascending and alternating descending are achieved. The lifting action relies on the electric pole, which can not only provide an omnidirectional work platform for construction personnel, but also has higher stability.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric power construction, and particularly relates to a lifting device for electric power construction. BACKGROUND

[0002] During electric power construction, a construction worker needs to climb an electric pole to install accessories and tighten a wire group, at present, the construction worker mostly depends on manually stepping on a pedal or climbing the electric pole by using a foot hook, and the risk coefficient is relatively large, and the lifting device for electric power construction in the prior art also has many technical problems.

[0003] (1) The lifting device for electric power construction in the prior art is mostly an independent lifting system, and has no connection with the electric pole, so that the aerial work platform provided by the lifting device cannot cover the area around the electric pole, and the construction worker is inconvenient to install accessories.

[0004] (2) Since the independent lifting is adopted, the aerial work platform of the lifting device for electric power construction in the prior art has poor stability and obvious shaking during the aerial work, which seriously affects the electric power construction efficiency and has the danger. SUMMARY

[0005] In view of the above technical problems, the application provides a lifting device for electric power construction, and a semi-enclosed elevator is creatively designed, the reciprocating power provided by the telescopic lifter is used to alternately lock and release the electric pole by the upper half ring plate and the lower half ring plate, so that the technical effect of alternating ascending and descending is achieved, and the lifting action relies on the electric pole, so that the construction worker can be provided with an omnidirectional work platform, and the stability is higher.

[0006] The technical scheme adopted by the application is as follows: the scheme provides a lifting device for electric power construction, which is composed of a connecting plate and two groups of semi-enclosed elevators which are identical in structure and can be connected, the semi-enclosed elevator comprises a base, a telescopic support rod, an upper half ring plate, a telescopic lifter, a lower half ring plate and a work basket, the base is slidingly 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 end of the telescoping part of the telescopic support rod is fixedly connected with the upper half ring plate, the telescopic lifter is vertically slidingly arranged on the outer arc side wall of the upper half ring plate, the lower half ring plate is vertically slidingly arranged on the telescopic lifter, the connecting frame is fixedly arranged on the outer arc wall surface of the upper half ring plate, the upper half ring plate is fixedly connected with the upper end of the telescoping part of the telescopic support rod through the connecting frame, the connecting rods are symmetrically arranged on the lower edges of the two side walls of the connecting frame, the upper edges of the work baskets are fixedly arranged on the lower ends of the connecting rods, the work baskets and the outer arc wall surface of the upper half ring plate are fixedly connected through the connecting frame and the connecting rods, when the two groups of semi-enclosed elevators are close to each other, the upper half ring plates of the two groups of semi-enclosed elevators are clamped, the lower half ring plates of the two groups of semi-enclosed elevators are clamped, two complete annular enclosures are formed, the electric pole is wrapped, and the two work baskets are spliced into a complete work platform.

[0007] In the scheme, the upper half ring plate outer arc wall middle part is rotationally provided with an upper gear, the upper half ring plate inner arc wall middle part is rotationally provided with an upper buckle rod, the rotation shaft of the upper gear penetrates the upper half ring plate and is fixedly connected with the middle part of the upper buckle rod, the lower half ring plate outer arc wall middle part is rotationally provided with a lower gear, the lower half ring plate inner arc wall middle part is rotationally provided with a lower buckle rod, the rotation shaft of the lower gear penetrates the lower half ring plate and is fixedly connected with the middle part of the lower buckle rod, the upper buckle rod and the lower buckle rod are the same in structure and are both arc-shaped members, so that the electric pole can be clamped after rotation.

[0008] The telescopic lifter is composed of a reciprocating electric push rod and two groups of slide frames, the upper slide frame is fixedly connected to the output end of the reciprocating electric push rod, the lower slide frame is fixedly connected to the base end of the reciprocating electric push rod, the upper slide frame is vertically slidably arranged on the upper half ring plate outer arc wall, the lower slide frame is vertically slidably connected with the lower half ring plate outer arc wall, a tension spring is connected between the top wall of the upper slide frame and the lower wall of the top of the connecting frame of the upper half ring plate outer arc side wall, a linkage frame is horizontally slidably arranged on the inner wall of the slide frame, an adjusting screw is rotationally arranged through the side wall of the slide frame, the adjusting screw is threadedly arranged through the linkage frame, the upper slide frame is transmissionally arranged with the upper buckle rod through the linkage frame and the upper gear in the upper slide frame, the lower slide frame is transmissionally arranged with the lower buckle rod through the linkage frame and the lower gear in the lower slide frame, specifically, a first gear rack is fixedly arranged on one side wall in the linkage frame, a second gear rack is fixedly arranged on the other side wall in the linkage frame, the first gear rack and the second gear rack are oppositely arranged, the first gear rack and the second gear rack in the upper slide frame are alternately engaged with the upper gear, and the first gear rack and the second gear rack in the lower slide frame are alternately engaged with the lower gear.

[0009] In order to ensure that the upper half ring plate and the lower half ring plate can be automatically temporarily locked on the electric pole, an upper friction locker is arranged on the inner arc wall of the upper half ring plate, and a lower friction locker is arranged on the inner arc wall of the lower half ring plate, and the upper friction locker and the lower friction locker are the same in structure.

[0010] Further, a hydraulic oil tank is arranged on the connecting plate, hydraulic oil is stored in the hydraulic oil tank, an oil pipe is communicatively arranged on the lower side wall of the hydraulic oil tank, the telescopic supporting rod base is connected with the oil pipe through a pressure hose, an electromagnetic valve is connected through the oil pipe, the electromagnetic valve is electrically connected with the reciprocating electric push rod, the electromagnetic valve is powered on and opened when the reciprocating electric push rod is in the elongation state, and the electromagnetic valve is powered off and closed when the reciprocating electric push rod is in the static state and the contraction state.

[0011] The beneficial effects obtained by the present application are as follows:

[0012] (1) In view of the problem that the lifting technology in the prior art is not related to the electric pole and has poor stability, the semi-enclosed lifter is creatively designed, the reciprocating power provided by the telescopic lifter is used to alternately lock and release the upper half ring plate and the lower half ring plate on the electric pole, so that the technical effect of alternating ascending and descending is realized, and the lifting action relies on the electric pole, which not only provides an omnidirectional operation platform for the construction personnel, but also has higher stability;

[0013] (2) The meshing state adjustment of the linkage frame, the upper gear and the lower gear arranged in the telescopic lifter realizes the control of the rotating directions of the upper buckle rod and the lower buckle rod, so that the upper half ring plate and the lower half ring plate are alternately lifted in the ascending stage, and the upper half ring plate and the lower half ring plate are alternately lowered in the descending stage;

[0014] (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 temporarily locked on the electric pole, so that the action of the reciprocating electric push rod can be effectively performed;

[0015] (4) When the two groups of semi-enclosed lifters are close to be engaged, the upper half ring plates of the two groups of semi-enclosed lifters are engaged, the lower half ring plates of the two groups of semi-enclosed lifters are engaged, two complete annular enclosures are formed, the electric pole is wrapped, and the two operation baskets are spliced into a complete operation platform;

[0016] (5) The electromagnetic valve is only energized and opened when the reciprocating electric push rod performs the elongation action, so that the hydraulic oil in the telescopic support rod cannot flow back to the hydraulic oil tank when the reciprocating electric push rod performs the elongation action, the hydraulic oil in the telescopic support rod provides a supporting force for the upper half ring plate and the operation basket, and the risk of sudden descent of the operation basket due to loosening of the operation basket and the electric pole is prevented, and in the descending stage, due to the diameter limitation of the variable-diameter through hole, the hydraulic oil backflow speed is relatively slow, and the risk of sudden descent of the operation basket due to sudden contraction of the telescopic support rod is also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a lifting device for electric power construction is provided for the present application Figure 1 ;

[0018] Figure 2 A structure diagram of a lifting device for electric power construction is provided for the present application Figure 2 ;

[0019] Figure 3 A semi-partial structure diagram of a lifting device for electric power construction is provided for the present application

[0020] Figure 4 A structure diagram of an upper half ring plate, a telescopic lifter and a lower half ring plate in the present application Figure 1 ;

[0021] Figure 5 Structure diagram of the upper half ring plate, the telescopic lifter and the lower half ring plate in the present application Figure 2

[0022] Figure 6 Structure diagram of the telescopic lifter in the present application

[0023] Figure 7 Top view and sectional view of the upper friction locker in the present application

[0024] Figure 8 Partial enlarged view of part A in the present application Figure 3

[0025] Figure 9 Structure diagram of the oil path switcher in the present application

[0026] Wherein, 1, connecting plate, 10, electric pole slot, 11, hydraulic oil tank, 12, oil pipe, 121, electromagnetic valve, 122, reversing valve, 123, valve shell, 124, one-way disc, 125, rotating handle, 126, variable diameter through hole, 127, plugging ball, 128, plugging spring, 13, pressure hose, 2, half package elevator, 3, base, 4, telescopic support rod, 5, upper half ring plate, 50, connecting frame, 501, connecting rod, 51, upper gear, 52, upper clamping rod, 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 clamping rod, 73, lower friction locker, 8, operation basket.

[0027] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application. DETAILED DESCRIPTION

[0028] Embodiment one: please refer to Figures 1-9 ​​The embodiment provides a lifting device for power construction, which is composed of a connecting plate 1 and two groups of half-package elevators 2 which are structurally consistent and can be connected, the connecting plate 1 is provided with a pole groove 10, the pole groove 10 is located in the middle of the two groups of half-package elevators 2, in use, a pole is put into the pole groove 10, the half-package elevator 2 comprises a base 3, a telescopic supporting rod 4, an upper half-ring plate 5, a telescopic lifter 6, a lower half-ring plate 7 and a working basket 8, the base 3 is slidingly connected to the upper wall of the connecting plate 1, the lower end of the telescopic supporting rod 4 is fixedly arranged on the upper wall of the base 3, the upper end of the telescopic part of the telescopic supporting rod 4 is fixedly connected with the upper half-ring plate 5, the telescopic lifter 6 is vertically arranged on the outer arc side wall of the upper half-ring plate 5, the lower half-ring plate 7 is vertically arranged on the telescopic lifter 6, the outer arc wall surface of the upper half-ring plate 5 is fixedly provided with a connecting frame 50, the upper half-ring plate 5 is fixedly connected with the upper end of the telescopic part of the telescopic supporting rod 4 through the connecting frame 50, the connecting frame 50 is symmetrically provided with a connecting rod 501 on the lower side of the two side walls, the upper end of the connecting rod 501 is fixedly arranged with the upper end of the connecting rod 501, the working basket 8 is fixedly connected with the outer arc wall surface of the upper half-ring plate 5 through the connecting frame 50 and the connecting rod 501, the connecting plate 1 is provided with a hydraulic oil tank 11, the hydraulic oil tank 11 is provided with an oil pipe 12, the two telescopic supporting rods 4 are respectively connected with the oil pipe 12 through a pressure hose 13, the upper half-ring plates 5 of the two groups of half-package elevators 2 are respectively provided with a buckle and a slot which are matched with each other (not shown in the figure), so that the two groups of half-package elevators 2 can be connected and engaged, similarly, the lower half-ring plates 7 of the two groups of half-package elevators 2 are also designed in the same way, the side walls of the working baskets 8 of the two groups of half-package elevators 2 are respectively provided with a buckle and a slot which are matched with each other (not shown in the figure), so that when the two groups of half-package elevators 2 are close to each other, the upper half-ring plate 5 and the lower half-ring plate 7 form two complete annular enclosures to wrap the pole, and the two working baskets 8 are connected into a complete working platform.

[0029] In the scheme, the outer arc wall surface of the upper half-ring plate 5 is rotatably provided with an upper gear 51, the inner arc wall surface of the upper half-ring plate 5 is rotatably provided with an upper buckle rod 52, the rotating shaft of the upper gear 51 penetrates the upper half-ring plate 5 and is fixedly connected with the middle part of the upper buckle rod 52, the outer arc wall surface of the lower half-ring plate 7 is rotatably provided with a lower gear 71, the inner arc wall surface of the lower half-ring plate 7 is rotatably provided with a lower buckle rod 72, the rotating shaft of the lower gear 71 penetrates the lower half-ring plate 7 and is fixedly connected with the middle part of the lower buckle rod 72, the upper buckle rod 52 and the lower buckle rod 72 are the same in structure and are both arc-shaped members, the outer walls of the upper buckle rod 52 and the lower buckle rod 72 are provided with anti-skid rubbers, the upper buckle rod 52 and the lower buckle rod 72 are the same as the foot buckles for manually climbing poles in the prior art, and can be clamped on the pole by means of the friction force generated by gravity after the rotation angle.

[0030] 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 an electromagnetic valve 121 in a penetrating manner. The electromagnetic valve 121 is electrically connected with the reciprocating electric push rod 61. When the reciprocating electric push rod 61 is in an elongation state, the electromagnetic valve 121 is powered on and opened. When the reciprocating electric push rod 61 is in a static state or a contraction state, the electromagnetic valve 121 is powered off and closed. The upper sliding frame 62 is vertically slidably arranged on the outer arc wall surface of the upper half ring plate 5. The lower sliding frame 62 is vertically slidably connected with the outer arc wall surface of the lower half ring plate 7. The top wall of the upper sliding frame 62 is connected with the lower wall of the top of the connecting frame 50 of the outer arc side wall of the upper half ring plate 5 through a tension spring 63. A linkage frame 621 is horizontally slidably arranged in the inner wall of the sliding frame 62. An adjusting screw 622 is rotatably arranged in the side wall of the sliding frame 62. A knob 623 is fixedly arranged at the outer end of the adjusting screw 622. The adjusting screw 622 is threadedly arranged through the linkage frame 621. A first gear rack 624 is fixedly arranged on one side wall in the linkage frame 621. A second gear rack 625 is fixedly arranged on the other side wall in the linkage frame 621. The first gear rack 624 and the second gear rack 625 are oppositely arranged. The first gear rack 624 and the second gear rack 625 in the upper sliding frame 62 are alternately engaged with the upper gear 51. The first gear rack 624 and the second gear rack 625 in the lower sliding frame 62 are alternately engaged with the lower gear 71.

[0031] In order to ensure that the upper half ring plate 5 and the lower half ring plate 7 can be automatically locked on the electric pole without external force interference, an upper friction locker 53 is arranged on the inner arc wall surface of the upper half ring plate 5, and a lower friction locker 73 is arranged on the inner arc wall surface of the lower half ring plate 7. The upper friction locker 53 and the lower friction locker 73 are the same in structure. The upper friction locker 53 comprises 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. The friction block 533 is fixedly arranged at the outer end of the sliding rod 532. A locking spring 534 is arranged in the telescopic cylinder 531. The two ends of the locking spring 534 are fixedly connected with the inner end wall of the telescopic cylinder 531 and the end of the sliding rod 532 respectively.

[0032] In order to further guarantee the safety of the equipment, the reversing valve 122 is communicated on the oil pipe 12, the reversing valve 122 is a reversible one-way valve structure, the reversing valve 122 includes a valve shell 123, a one-way disc 124 and a rotating handle 125, the valve shell 123 is connected through the middle part of the oil pipe 121, the one-way disc 124 is rotationally attached to the inner wall of the valve shell 123, the rotating handle 125 is rotationally arranged on the outer wall of the valve shell 123, the rotating shaft of the rotating handle 125 penetrates the valve shell 123 and is fixedly connected with the one-way disc 124, a variable diameter through hole 126 is formed in the one-way disc 124, the variable diameter through hole 126 is composed of a large hole and a small hole, a blocking ball 127 is movably arranged in the variable diameter through hole 126, 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 in the variable diameter through hole 126, the end of the blocking spring 128 is fixedly connected with the blocking ball 127, and the blocking ball 127 is blocked in the variable diameter through hole 126 under the elastic force of the blocking spring 128.

[0033] In use, the reciprocating electric push rod 61 is reciprocated to control the upper half ring plate 5 and the lower half ring plate 7 to alternately move up and down along the electric pole, so that the work basket 8 is lifted.

[0034] The specific use process is as follows: in the initial state, the two groups of half package elevators 2 are away from each other, the electric power construction lifting device in the embodiment is placed beside the electric pole, and the electric pole enters the electric pole groove 10, the two groups of half package elevators 2 are located on both sides of the electric pole, the construction personnel who need to climb work enter the work basket 8, the ground construction personnel splice and engage the two groups of half package elevators 2, the base 3 slides on the connecting plate 1 to approach, so that the upper half ring plate 5 and the lower half ring plate 7 form two complete annular enclosures to wrap the electric pole, the upper half ring plate 5 and the lower half ring plate 7 can be temporarily locked on the electric pole by the locking spring 534 in the upper friction lock 53 and the lower friction lock 73 so that the friction block 533 tightly abuts against the electric pole, and the two work baskets 8 are spliced into a complete work platform.

[0035] Rising working condition:

[0036] In the working condition of rising along the electric pole, the first gear rack 624 in the linkage frame 621 is driven and controlled, that is, the first gear rack 624 in the upper sliding frame 62 is engaged with the upper gear 51, the first gear rack 624 in the lower sliding frame 62 is engaged with the lower gear 71, and the small hole of the variable diameter through hole 126 of the one-way disc 124 is close to the hydraulic oil tank 11 and the large hole is away from the hydraulic oil tank 11.

[0037] The construction personnel starts the reciprocating electric push rod 61 to perform reciprocating extension and contraction, and starts to rise. When the reciprocating electric push rod 61 is extended, the lower sliding frame 62 moves downward relative to the lower half ring plate 7. The first rack 624 in the sliding frame 621 drives the lower gear 71 to rotate and lock the electric rod by driving the lower locking rod 72 to rotate. The two groups of lower half ring plates 7 jointly lock the electric rod by the lower locking rod 72, so that the lower half ring plate 7 is fastened on the electric rod and cannot slide off (the same as the principle of the carabiner climbing). The output end of the reciprocating electric push rod 61 moves upward, so that the upper sliding frame 62 moves upward. The first rack 624 in the upper sliding frame 62 drives the upper gear 51 to rotate in the reverse direction, and the upper locking rod 52 rotates in the reverse direction and is in a released state. Therefore, after the upper locking rod 52 reversely rotates to the limit after being tightly attached to the inner wall of the upper half ring plate 5 at both ends, the reciprocating electric push rod 61 pushes the upper half ring plate 5 upward along the electric rod through the upper sliding frame 62, so that the working basket 8 rises for the first time.

[0038] When the reciprocating electric push rod 61 is extended, the electromagnetic valve 121 is energized and opened. The upper half ring plate 5 moves upward to drive the telescopic supporting rod 4 to extend, so that the hydraulic oil in the hydraulic oil tank 11 is sucked into the telescopic supporting rod 4 through the oil pipe 12. The hydraulic oil can push the blocking ball 127 to loosen in this process, so as to smoothly pass through the variable-diameter through hole 126.

[0039] When the reciprocating electric push rod 61 is retracted, the movement directions of the two sliding frames 62 are exchanged, that is, the upper sliding frame 62 moves downward and the lower sliding frame 62 moves upward, so that the lower locking rod 72 loosens the electric rod, and the upper locking rod 52 starts to lock the electric rod. With the retraction movement of the reciprocating electric push rod 61, the lower half ring plate 7 can be driven by the lower sliding frame 62 to move upward along the electric rod. At this time, the upper half ring plate 5 locks the electric rod, and the working basket 8 is in a stationary state. Since the electromagnetic valve 121 is in a de-energized closed state, the hydraulic oil in the telescopic supporting rod 4 cannot flow back into the hydraulic oil tank 11. The hydraulic oil in the telescopic supporting rod 4 also provides a supporting force for the upper half ring plate 5 and the working basket 8, preventing the risk of sudden descent of the working basket 8 and the electric rod.

[0040] The above process is a rising process. Then the reciprocating electric push rod 61 continues to perform extension and contraction, so that the upper half ring plate 5 and the lower half ring plate 7 are alternately raised, and the above rising process is repeatedly performed, so that the working basket 8 is intermittently raised, thereby realizing the lifting work.

[0041] Lowering working condition:

[0042] After the work is completed, the work basket 8 needs to be lowered and returned to the initial state, the construction personnel in the work basket 8 rotate all the knobs 623, so that the adjusting screw rod 622 rotates, so that the linkage frame 621 slides in the sliding frame 62, the first rack 624 in the two sets of linkage frames 621 respectively disengages the upper gear 51 and the lower gear 71, and the second rack 625 in the two sets of linkage frames 621 respectively engages the upper gear 51 and the lower gear 71, in the process, the arrangement of the tension spring 63 ensures that the telescopic lifter 6 is in a stable state, and because the electromagnetic valve 121 is de-energized 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 electric pole. The ground construction personnel rotate the handle 125, so that the one-way disc 124 rotates 180°, and the one-way disc 124 is in a state in which 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. Figure 9

[0043] Then the telescopic action of the reciprocating electric push rod 61 is started again, when the reciprocating electric push rod 61 is elongated, the upper sliding frame 62 has a tendency to move upward relative to the upper half ring plate 5, and because the second rack 625 is engaged with the upper gear 51, at this time, the second rack 625 will drive the upper clamping rod 52 to rotate (in the opposite direction of the upward stage) through the upper gear 51 and clamp the electric pole, so that the upper half ring plate 5 locks the electric pole and is in a static state, and the base of the reciprocating electric push rod 61 is lowered, so that the second rack 625 in the lower sliding frame 62 drives the lower gear 71 and the lower clamping rod 72 to rotate (in the opposite direction of the upward stage) and releases the electric pole, so that the lower half ring plate 7 is pushed down by the resistance of the lower clamping rod 72 and the lower half ring plate 7, and in this process, the reciprocating electric push rod 61 is elongated, the electromagnetic valve 121 is in an energized open state, and the hydraulic oil in the telescopic support rod 4 can be smoothly pressed into the oil pipe 121 and returned to the inside of the hydraulic oil tank 11 through the variable-diameter through hole 126, and because of the diameter restriction of the variable-diameter through hole 126, the hydraulic oil return speed is relatively slow, and there is no risk of sudden contraction of the telescopic support rod 4 causing the work basket 8 to suddenly drop.

[0044] When the reciprocating electric push rod 61 is retracted, the lower clamping rod 72 in the lower half ring plate 7 locks the electric pole, and the upper clamping rod 52 in the upper half ring plate 5 releases the electric pole, and the reciprocating electric push rod 61 drives the upper half ring plate 5 to descend, so that the work basket 8 is lowered.

[0045] The above process is a lowering process, 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 are lowered alternately, and the above lowering process is repeatedly performed, so that the work basket 8 is intermittently lowered, and thus returns to the initial state.

[0046] After the work is completed, the two sets of half-pack elevators 2 are disassembled, and the next construction can be performed. ​

[0047] The above description of the application and its embodiments is not limiting, and the actual structure is not limited to the one shown in the drawings.

Claims

1. A lifting device for power construction, comprising a connecting plate (1), characterized in that: Two sets of identical and interlocking semi-enclosed lifting platforms (2) are movably mounted on the connecting plate (1). The semi-enclosed lifting platform (2) includes a base (3), a telescopic support rod (4), an upper half ring plate (5), a telescopic lifting device (6), a lower half ring plate (7), and a work basket (8). The base (3) is slidably attached to the upper wall of the connecting plate (1). The lower end of the telescopic support rod (4) is fixedly mounted on 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 lifting device (6) is vertically slidably mounted on the outer arc side wall of the upper half ring plate (5). The lower half ring plate (7) is vertically slidably mounted on the telescopic lifting device (6). A connecting frame (50) is fixedly mounted on the outer arc wall of the upper half ring plate (5). Connecting rods (501) are symmetrically fixedly mounted on the lower edge of the two side walls of the connecting frame (50). The work 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 rods (501). The upper half ring plate (5) has an upper buckle (52) rotating in the middle of the inner arc wall surface, and the lower half ring plate (7) has a lower buckle (72) rotating in the middle of the inner arc wall surface. The telescopic lifting device (6) consists of a reciprocating electric actuator (61) and two sets of sliding frames (62). The upper sliding frame (62) is fixedly connected to the output end of the reciprocating electric actuator (61), and the lower sliding frame (62) is fixedly connected to the base end of the reciprocating electric actuator (61). The upper sliding frame (62) is vertically slidably mounted on the outer arc wall of the upper half ring plate (5), and the lower sliding frame (62) is vertically slidably connected to the outer arc wall of the lower half ring plate (7). The inner wall of the slide frame (62) is provided with a linkage frame (621) for horizontal sliding. The side wall of the slide frame (62) is provided with an adjusting screw (622) for rotation. The adjusting screw (622) is threaded through the linkage frame (621). The linkage frames (621) in the two sets of slide frames (62) are respectively connected to the upper latch (52) and the lower latch (72) for transmission.

2. The lifting device for power construction according to claim 1, characterized in that: A tension spring (63) connects the top wall of the upper sliding frame (62) to the outer arc side wall of the upper half ring plate (5).

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

4. A lifting device for power construction according to claim 3, characterized in that: A solenoid valve (121) is connected through the oil pipe (12), and the solenoid valve (121) is electrically connected to the reciprocating electric actuator (61).

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

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