CN114604807A

CN114604807A - Safe lifting device for electric power construction

Info

Publication number: CN114604807A
Application number: CN202011411610.2A
Authority: CN
Inventors: 曹自潭; 曹自波; 李波; 李帅; 邹启明; 燕磊
Original assignee: State Grid Corp of China SGCC; Xiangyang Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Xiangyang Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2020-12-06
Filing date: 2020-12-06
Publication date: 2022-06-10

Abstract

A safety lifting device for electric power construction relates to the technical field of electric power construction safety, wherein a first fixed plate is connected to the inner wall of an inner cavity of a base, an electric hydraulic push rod and a movable plate are fixedly connected below the first fixed plate, the bottom of the movable plate is respectively connected with a first fixed frame and a first supporting leg, the first fixed frame is provided with a first motor, and a first chain wheel on an output shaft of the first motor is connected with a second chain wheel on the supporting leg; and a second fixing frame and a second motor are further connected above the first fixing plate, a steel wire rope is connected to a wind-up roll of the second motor, and the steel wire rope penetrates through a second through hole of the lifting platform to be connected with a fixed stop block on the second fixing plate, so that the lifting platform is driven to move up and down. The invention is more convenient in moving and saves manpower, when the lifting platform is lifted, the movable plate is driven to move by the electric hydraulic push rod, so that the movable plate drives the roller to rotate, the roller is retracted into the base, the periphery of the base is contacted with the ground, and the device is more stable when being stopped.

Description

Safe lifting device for electric power construction

Technical Field

The invention relates to the technical field of electric power construction safety, in particular to a safety lifting device for electric power construction.

Background

At present, in the electric power construction process, when ascending a height, the elevating platform device is mostly used for vertically conveying constructors or maintenance personnel and for transporting tools and parts required by installation and maintenance. In the actual working process, as a connecting device of conveying lines with different heights, various plane conveying devices are often arranged on the lifting platform so as to meet the use requirements of planes with different heights. However, the existing lifting platform is fixed on the vehicle suspension arm by a fixed shaft, the problem of insufficient stability of a base exists, once the working platform surface of the lifting platform rises, workers at the top can shake the whole platform body by walking slightly, a large potential safety hazard exists during electric power construction, the stability of the lifting platform body in the rising process is poor, and the lifting platform is inconvenient to move.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a safety lifting device for power construction, which solves the problems of poor fixation of the bottom of a lifting platform and insufficient stability in the lifting process, eliminates potential safety hazards in time and meets the requirements of power construction safety production.

In order to achieve the purpose, the lifting device comprises a base, an upright post and a lifting platform, wherein a first fixed plate is fixedly connected to the opposite inner wall of an inner cavity of the base, an electric hydraulic push rod is fixedly connected to the lower side of the fixed plate and connected with a movable plate, the bottom of the movable plate is respectively connected with a first fixed frame and a first supporting leg, a first motor is mounted on the first fixed frame, a first chain wheel is mounted on an output shaft of the first motor, a rotating shaft is mounted on the supporting leg, a second chain wheel and a roller wheel are respectively arranged on the rotating shaft, and the first chain wheel is connected with the second chain wheel through a chain;

a second fixing frame is fixedly connected above the first fixing plate, a second motor is mounted on the second fixing frame, a wind-up roll is mounted on an output shaft of the second motor, and a steel wire rope is connected to the wind-up roll;

the two sides above the base are respectively and fixedly provided with an upright post, the top of the upright post is provided with a guide wheel and a guide rail, the other end of the guide rail is fixedly connected with the upper surface of the base, the base is also provided with a first through hole, and a steel wire rope penetrates through the first through hole;

still sliding connection has lift platform on the guide rail, and lift platform both sides are connected with fixed plate two respectively, and it has slide opening, through-hole two to open on the fixed plate two, the guide rail is connected with lift platform through the slide opening on the fixed plate two, wire rope one end is passed through-hole two and is connected with the fixed dog on the fixed plate two, and the wire rope other end is walked around the leading wheel and is passed through-hole one and be connected with the wind-up roll.

Furthermore, the electric hydraulic push rods, the first fixing frame and the supporting legs are four groups and are respectively positioned at four corners of the inner cavity of the base.

Furthermore, a sliding groove is formed in the inner wall of the base inner cavity, sliding blocks are fixedly connected to the two side faces of the movable plate, and the sliding blocks are movably connected in the sliding groove.

Furthermore, the lifting platform is provided with a guardrail, a guardrail door is further arranged in the middle of the guardrail and hinged to the guardrail through hinges, and the guardrail is provided with a control switch.

Furthermore, a storage battery pack is arranged at the top of the first fixing plate.

Furthermore, the guide rails and the slide holes are all configured in four groups and are respectively arranged on two sides of the lifting platform.

Furthermore, the guardrail door is fixed with the guardrail through lock catch clamping.

Further, the outer diameter of the roller is larger than that of the second chain wheel.

Compared with the prior art, the invention is provided with the first motor and the electric hydraulic push rod, the first motor drives the first chain wheel to rotate and drives the second chain wheel to rotate through the chain, and the second chain wheel drives the roller to roll through the rotating shaft, so that the device is more convenient and labor-saving when being moved; when the lifting platform is lifted, the electric hydraulic push rod drives the movable plate to move up and down, the movable plate drives the roller to move, the roller can be conveniently retracted into the base, the base is in good contact with the ground, and the lifting platform is enabled to be more stable when being stopped.

Meanwhile, the winding device is provided with the second motor, the guide rail and the sliding hole, the second motor drives the winding roller to rotate, and further the steel wire rope is wound or released, so that the guide rail moves up and down in the sliding hole, the position of the lifting platform is limited, the height of the lifting platform is convenient to raise or lower, the lifting platform is more stable when being raised or lowered, and the lifting platform is prevented from shaking in the raising process.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a partially enlarged schematic view of fig. 1 at B.

Fig. 4 is a partially enlarged schematic view of fig. 1 at C.

Fig. 5 is a schematic structural view of the lifting platform in fig. 1.

In the figure, the device comprises a base 1, a base 2, a first fixing plate 3, an electric hydraulic push rod 4, a movable plate 5, a first fixing frame 6, a first motor 7, a first chain wheel 8, a first supporting leg 9, a rotating shaft 10, a second chain wheel 11, a roller 12, a chain 13, an upright post 14, a guide wheel 15, a second fixing frame 16, a second motor 17, a winding roller 18, a steel wire rope 19, a first through hole 20, a guide rail 21, a lifting platform 22, a second fixing plate 23, a sliding hole 24, a second through hole 25, a fixing stop dog 26, a guardrail 27, a guardrail door 28, a control switch 29, a storage battery pack 30, a sliding chute 31 and a sliding block.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, 2, 3, 4 and 5, the lifting device comprises a base 1, an upright column 13 and a lifting platform 21, wherein the base 1 is formed by closing the top and the peripheral inner walls, a first fixing plate 2 is fixedly connected to the inner wall of an inner cavity of the base 1 opposite to the inner wall, an electric hydraulic push rod 3 is fixedly connected to the lower portion of the first fixing plate 2, the electric hydraulic push rod 3 is connected with a movable plate 4, the bottom of the movable plate 4 is respectively connected with a first fixing frame 5 and a support leg 8, a first motor 6 is arranged on the first fixing frame 5, a first chain wheel 7 is arranged on an output shaft of the first motor 6, a rotating shaft 9 is arranged at a bearing position on the support leg 8, a second chain wheel 10 and a roller 11 are respectively arranged on the rotating shaft 9, and the first chain wheel 7 is connected with the second chain wheel 10 through a chain 12. When the lifting device works, the first motor 6 drives the first chain wheel 7 to rotate, the second chain wheel 10 and the rotating shaft 9 are driven to rotate through the chain 12, the roller 11 rolls, the lifting device is convenient to move, labor is saved, and the lifting device is stable to move. When the lifting device is lifted, the movable plate 4 is driven to move upwards through the electric hydraulic push rod 3 to drive the roller 11 to move upwards, the roller 11 is recovered into the inner cavity of the base 1, the stable contact between the periphery of the base 1 and the ground is ensured, and the lifting device is more stable when being stopped.

A second fixing frame 15 is fixedly connected above the first fixing plate 2, a second motor 16 is mounted on the second fixing frame 15, a winding roller 17 is mounted on an output shaft of the second motor 16, and a steel wire rope 18 is connected to the winding roller 17;

the two sides above the base 1 are respectively fixedly provided with an upright post 13, the top of the upright post 13 is provided with a guide wheel 14 and a guide rail 20, one end of the guide rail 20 is connected with the top of the upright post 13, the other end of the guide rail 20 is fixedly connected with the upper surface of the base 1, the guide rail 20 and the upright post 13 are arranged in parallel, the upper part of the base 1 is also provided with a first through hole 19, and a steel wire rope 18 penetrates through the first through hole 19;

still sliding connection has lift platform 21 on the guide rail 20, and lift platform 21 both sides are connected with two fixed plates 22 respectively, have all opened slide opening 23, two through-holes 24 on two fixed plates 22 of both sides, guide rail 20 is connected with lift platform 21 through slide opening 23 on two fixed plates 22, wire rope 18 one end is passed two through-holes 24 and is connected with the fixed stop 25 on two fixed plates 22, and wire rope 18 other end is walked around leading wheel 14 and is passed through one through-hole 19 and be connected with wind-up roll 17, and fixed stop 25 establishes the bottom at two fixed plates 22. When the lifting platform 21 moves up and down, the second motor 16 drives the winding roller 17 to rotate and wind or release the steel wire rope 18, the lifting platform 21 moves up and down on the guide rail 20 along the sliding hole 23, and the sliding hole 23 and the guide rail 20 limit the position of the lifting platform 21, so that the lifting platform 21 is more stable when being lifted or lowered, and the lifting platform 21 is prevented from shaking in the lifting process.

Preferably, electro-hydraulic push rod 3, mount 5, supporting leg 8 are four groups, are located four angles of 1 inner chamber of base respectively, make whole elevating gear atress balanced, steady.

Preferably, the inner cavity of the base 1 is provided with a sliding groove 30 on the inner wall, the two side surfaces of the movable plate 4 are fixedly connected with sliding blocks 31, and the sliding blocks 31 are movably connected in the sliding groove 30. The movable plate 4 is limited, and when the movable plate 4 moves up and down, the sliding block 31 moves in the sliding groove 30, so that the movable plate 4 is more stable when being lifted up and down.

Preferably, be equipped with guardrail 26 on lift platform 21, further protect personnel's safety on lift platform 21, still be equipped with guardrail door 27 in the middle of guardrail 26, guardrail door 27 is articulated with guardrail 26 through the hinge, and when elevating gear shut down the steady back, guardrail door 27 makes things convenient for personnel to pass in and out, from top to bottom, be provided with control switch 28 on the guardrail 26, the operation of the whole elevating gear of control.

Preferably, a storage battery pack 29 is arranged at the top of the first fixing plate 2 to provide power guarantee for the motor and the control switch.

Preferably, the guide rails 20 and the sliding holes 23 are configured in four groups and are respectively arranged on two sides of the lifting platform 21, so that the lifting platform 21 can run more stably up and down.

Preferably, the guardrail door 27 and the guardrail 26 are fixed in a clamping manner through a lock catch, so that safety guarantee is added for opening the guardrail door 27.

Preferably, the outer diameter of the roller 11 is larger than that of the second chain wheel 10, so that the roller 11 is more convenient to move on the ground.

When the lifting device is used, the first motor 6 is started through the control switch 28, the first chain wheel 7 is driven to rotate, the chain 12, the chain wheel 10 and the rotating shaft 9 are sequentially driven to enable the roller 11 to roll, the lifting device is moved to a use position, then the electric hydraulic push rod 3 is started to drive the movable plate 4 to move, the sliding block 31 moves upwards in the sliding groove 30, the roller 11 is driven to retract into the base 1, the base 1 is in contact with the ground, and the device is stopped stably. When a worker enters the lifting platform 21, the guardrail door 27 is closed, the second motor 16 is started, the winding roller 17 is driven to rotate, the steel wire rope 18 is wound, the sliding rod 20 moves in the sliding hole 23, and the lifting platform 21 is adjusted to be at a proper height.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The safe lifting device for electric power construction is characterized by comprising a base (1), an upright post (13) and a lifting platform (21), wherein a first fixed plate (2) is fixedly connected to the inner wall of an inner cavity of the base (1) relatively, an electric hydraulic push rod (3) is fixedly connected to the lower portion of the first fixed plate (2), the electric hydraulic push rod (3) is connected with a movable plate (4), the bottom of the movable plate (4) is respectively connected with a first fixed frame (5) and a first supporting leg (8), a first motor (6) is mounted on the first fixed frame (5), a first chain wheel (7) is mounted on an output shaft of the first motor (6), a rotating shaft (9) is mounted on the supporting leg (8), a second chain wheel (10) and a roller (11) are respectively arranged on the rotating shaft (9), and the first chain wheel (7) is connected with the second chain wheel (10) through a chain (12);

a second fixing frame (15) is fixedly connected above the first fixing plate (2), a second motor (16) is mounted on the second fixing frame (15), a winding roller (17) is mounted on an output shaft of the second motor (16), and a steel wire rope (18) is connected to the winding roller (17);

the steel wire rope guide rail is characterized in that upright columns (13) are fixedly arranged on two sides above the base (1) respectively, guide wheels (14) and guide rails (20) are arranged at the tops of the upright columns (13), the other ends of the guide rails (20) are fixedly connected with the upper surface of the base (1), a first through hole (19) is formed in the base (1), and a steel wire rope (18) penetrates through the first through hole (19);

still sliding connection has lift platform (21) on guide rail (20), and lift platform (21) both sides are connected with fixed plate two (22) respectively, and it has slide opening (23), through-hole two (24) to open on fixed plate two (22), guide rail (20) are connected with lift platform (21) through slide opening (23) on fixed plate two (22), wire rope (18) one end is passed through-hole two (24) and is connected with fixed dog (25) on fixed plate two (22), and wire rope (18) other end is walked around leading wheel (14) and is passed through-hole one (19) and be connected with wind-up roll (17).

2. The safety lifting device for electric power construction as claimed in claim 1, wherein the electro-hydraulic push rods (3), the first fixing frames (5) and the supporting legs (8) are four groups and are respectively located at four corners of the inner cavity of the base (1).

3. The safe lifting device for electric power construction according to claim 1, wherein a sliding groove (30) is formed in the inner cavity of the base (1) relative to the inner wall, sliding blocks (31) are fixedly connected to the two side surfaces of the movable plate (4), and the sliding blocks (31) are movably connected in the sliding groove (30).

4. The safety lifting device for power construction as claimed in claim 1, wherein a guardrail (26) is arranged on the lifting platform (21), a guardrail door (27) is further arranged in the middle of the guardrail (26), the guardrail door (27) is hinged to the guardrail (26) through a hinge, and a control switch (28) is arranged on the guardrail (26).

5. The safety lifting device for power construction as claimed in claim 4, wherein a battery pack (29) is arranged on the top of the first fixing plate (2).

6. The safety lifting device for electric power construction as claimed in claim 1, wherein the guide rails (20) and the slide holes (23) are arranged in four groups and are respectively arranged on two sides of the lifting platform (21).

7. The safety lifting device for power construction as claimed in claim 4, wherein the guardrail door (27) and the guardrail (26) are fixed by snap-lock.

8. The safety lifting device for electric power construction as claimed in claim 4, wherein the outer diameter of the roller (11) is larger than that of the second sprocket (10).