CN114604807A - Safe lifting device for electric power construction - Google Patents

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

A safety lifting device for electric 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 technique

At present, in the process of electric power construction, during the climbing operation, the lifting platform device is often used to vertically transport construction personnel or maintenance personnel, as well as to transport tools and parts required for installation and maintenance. In the actual working process, as the connecting device of the conveying line of different heights, the lifting platform is often equipped with various plane conveying equipment to meet the use requirements of different height planes. However, the existing lifting platform is fixed on the vehicle boom by a fixed shaft, and there is a problem that the stability of the base is not enough. Once the working surface of the lifting platform is raised, the staff at the top will move a little, and the entire platform will shake. There is a great safety hazard, and the stability of the lift table body is not good during the lifting process, and it is also inconvenient when the lift table moves.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the purpose of the invention of the present invention is to provide a safety lifting device for electric power construction, so as to solve the problems of poor fixing of the bottom of the lifting platform and insufficient stability during the lifting process, eliminate potential safety hazards in time, and meet the safety requirements of electric power construction. Production needs.

In order to achieve the above purpose of the invention, the present invention includes a base, a column and a lifting platform. The inner cavity of the base is fixedly connected with a fixed plate 1 relative to the inner wall, and an electro-hydraulic push rod is fixedly connected below the fixed plate. The electro-hydraulic push rod is connected to the movable plate. Connection, the bottom of the movable plate is respectively connected with a fixing frame 1 and a supporting leg, the fixing frame 1 is equipped with a motor 1, the output shaft of the motor 1 is equipped with a sprocket 1, the supporting leg is equipped with a rotating shaft, and the rotating shaft is respectively provided with There are two sprockets and rollers, and the sprockets are connected with the second sprockets through the chain;

A fixing frame 2 is also fixedly connected above the fixing plate 1, a motor 2 is installed on the fixing frame 2, a winding roller is installed on the output shaft of the motor 2, and a wire rope is connected to the winding roller;

Upright columns are respectively fixed on both sides above the base, a guide wheel and a guide rail are arranged on the top of the upright column, the other end of the guide rail is fixedly connected with the upper surface of the base, and the base is further provided with a through hole, and a wire rope is pierced through the through hole one;

The guide rail is also slidably connected with a lifting platform, and two fixed plates are respectively connected on both sides of the lifting platform. The second fixed plate is provided with a sliding hole and a second through hole, and the guide rail is connected with the lifting platform through the sliding hole on the second fixed plate. One end of the wire rope passes through the second through hole and is connected to the fixed block on the second fixed plate, and the other end of the steel wire rope bypasses the guide wheel and passes through the first through hole to connect with the winding roller.

Further, the electro-hydraulic push rod, the first fixing frame and the supporting legs are all four groups, which are respectively located at the four corners of the inner cavity of the base.

Further, the inner cavity of the base is provided with a chute relative to the inner wall, and both sides of the movable plate are fixedly connected with a slider, and the slider is movably connected in the chute.

Further, a guardrail is arranged on the lifting platform, and a guardrail door is also arranged in the middle of the guardrail. The guardrail door is hinged with the guardrail through a hinge, and a control switch is arranged on the guardrail.

Further, the top of the first fixing plate is provided with a battery pack.

Further, the guide rails and the sliding holes are configured in four groups, which are respectively arranged on both sides of the lifting platform.

Further, the guardrail door and the guardrail are fastened and fixed by a lock.

Further, the outer diameter of the roller is larger than the outer diameter of the second sprocket.

Compared with the prior art, the present invention is provided with a motor 1 and an electro-hydraulic push rod. The motor 1 drives the sprocket 1 to rotate, and drives the second sprocket to rotate through the chain. It is more convenient and labor-saving when the lifting platform is raised; when the lifting platform is raised, the electro-hydraulic push rod drives the movable plate to move up and down, and the movable plate drives the roller to move, so that the roller can be retracted into the interior of the base, so that the base can be in good contact with the ground, ensuring that the present invention is in More stable when parked.

At the same time, the present invention is provided with a second motor, a guide rail and a sliding hole, and the second motor drives the winding roller to rotate, and then winds or releases the wire rope, so that the guide rail moves up and down inside the sliding hole, and the position of the lifting platform is limited, which is convenient Raise or lower the height of the lifting platform, and make the lifting platform more stable when it is raised or lowered, so as to avoid shaking of the lifting platform during the lifting process.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a partial enlarged schematic diagram of part A in FIG. 1 .

FIG. 3 is a partial enlarged schematic diagram of part B in FIG. 1 .

FIG. 4 is an enlarged schematic diagram of a part at C in FIG. 1 .

FIG. 5 is a schematic structural diagram of the lifting platform in FIG. 1 .

In the figure, 1, base, 2, fixed plate 1, 3, electro-hydraulic push rod, 4, movable plate, 5, fixed frame 1, 6, motor 1, 7, sprocket 1, 8, support leg, 9, rotating shaft , 10, sprocket two, 11, roller, 12, chain, 13, column, 14, guide wheel, 15, fixed frame two, 16, motor two, 17, winding roller, 18, wire rope, 19, through hole one , 20, guide rail, 21, lifting platform, 22, fixed plate two, 23, sliding hole, 24, through hole two, 25, fixed stop, 26, guardrail, 27, guardrail door, 28, control switch, 29, battery Group, 30, Chute, 31, Slider.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, the present invention includes a base 1, a column 13, and a lifting platform 21. The base 1 is formed by closing the top and the surrounding inner walls, and the inner cavity of the base 1 is opposite to the inner wall. A fixed plate 1 2 is fixedly connected to the upper part, an electro-hydraulic push rod 3 is fixedly connected to the bottom of the fixed plate 1 2, and the electro-hydraulic push rod 3 is connected to a movable plate 4. The bottom of the movable plate 4 is respectively connected with a fixed frame 1 5 and a supporting leg. 8. Motor one 6 is installed on the fixing frame one 5, sprocket one 7 is installed on the output shaft of the motor one 6, the bearing position on the support leg 8 is equipped with a rotating shaft 9, and the rotating shaft 9 is respectively provided with a sprocket two. 10. Roller 11, the first sprocket 7 is connected with the second sprocket 10 through the chain 12. When working, the motor one 6 drives the sprocket one 7 to rotate, and drives the sprocket two 10 and the rotating shaft 9 to rotate through the chain 12, and the roller 11 rolls, which is convenient for the movement of the lifting device, and saves manpower and moves smoothly. When the lifting device is raised, the movable plate 4 is driven upward by the electro-hydraulic push rod 3, which drives the roller 11 to move upward, and the roller 11 is recovered into the inner cavity of the base 1 to ensure that the surrounding of the base 1 is in stable contact with the ground, so that the lift can be lifted. The device is more stable when parked.

A fixing frame 2 15 is also fixedly connected above the fixing plate 1 2. The fixing frame 2 15 is equipped with a motor 2 16, the output shaft of the motor 2 16 is equipped with a winding roller 17, and the winding roller 17 is connected with a wire rope 18. ;

Uprights 13 are respectively fixed on both sides above the base 1. The top of the uprights 13 is provided with guide wheels 14 and guide rails 20. One end of the guide rails 20 is connected to the top of the uprights 13, and the other end of the guide rails 20 is fixedly connected to the upper surface of the base 1. The guide rails 20 and The uprights 13 are arranged in parallel, the upper part of the base 1 is also provided with a through hole 19, and a steel wire rope 18 is passed through the through hole 19;

The guide rail 20 is also slidably connected with a lifting platform 21. Two fixed plates 22 are respectively connected on both sides of the lifting platform 21. The second fixed plates 22 on both sides are provided with sliding holes 23 and two through holes 24. The guide rail 20 The sliding hole 23 on the second fixing plate 22 is connected to the lifting platform 21, one end of the wire rope 18 passes through the second through hole 24 and is connected to the fixing block 25 on the second fixing plate 22, and the other end of the wire rope 18 bypasses the guide wheel 14 and is connected to the lifting platform 21. The first through hole 19 is connected to the winding roller 17 , and the fixed stopper 25 is arranged on the bottom of the second fixed plate 22 . When the lifting platform 21 runs up and down, the second motor 16 drives the winding roller 17 to rotate, and winds or releases the wire rope 18. The lifting platform 21 moves up and down along the sliding hole 23 on the guide rail 20, and the sliding hole 23 and the guide rail 20 are opposite to the lifting platform 21. The position of the lifting table 21 is limited, so that the lifting table 21 is more stable when it is raised or lowered, and the lifting table 21 is prevented from shaking during the lifting process.

Preferably, the electro-hydraulic push rod 3 , the fixing frame 1 5 and the support legs 8 are all four groups, which are respectively located at the four corners of the inner cavity of the base 1 , so that the entire lifting device is balanced and stable in force.

Preferably, the inner cavity of the base 1 is provided with a sliding groove 30 on the opposite inner wall, and the sliding block 31 is fixedly connected to both sides of the movable plate 4 , and the sliding block 31 is movably connected in the sliding groove 30 . It plays a role in limiting the movable plate 4. When the movable plate 4 moves up and down, the slider 31 moves in the chute 30 to ensure that the movable plate 4 is more stable when it is raised and lowered.

Preferably, a guardrail 26 is provided on the lift platform 21 to further protect the safety of personnel on the lift platform 21. A guardrail door 27 is also provided in the middle of the guardrail 26. The guardrail door 27 is hinged with the guardrail 26 through hinges. When the lifting device stops stably Afterwards, the guardrail door 27 is convenient for people to enter, exit, and go up and down. The guardrail 26 is provided with a control switch 28 to control the operation of the entire lifting device.

Preferably, a battery pack 29 is provided on the top of the fixing plate 1 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, which are respectively arranged on both sides of the lifting platform 21 , so that the lifting platform 21 can run more smoothly up and down.

Preferably, the guardrail door 27 and the guardrail 26 are fastened and fixed by means of a lock, so as to increase the safety guarantee for the opening of the guardrail door 27 .

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

When the present invention is in use, the motor 1 6 is activated by the control switch 28 to drive the sprocket 1 7 to rotate, and the chain 12, the sprocket 10, and the rotating shaft 9 are successively made to roll the roller 11, and the lifting device is moved to the position where it is used. Then, start the The electro-hydraulic push rod 3 drives the movable plate 4 to move, the slider 31 moves upward in the chute 30 , and drives the roller 11 to retract into the base 1 , and the base 1 contacts the ground to stabilize the device. When the staff enters the lift table 21, close the guardrail door 27, start the motor 2 16, and drive the winding roller 17 to rotate, wind the wire rope 18, make the sliding rod 20 move inside the sliding hole 23, and the lifting table 21 Adjust to the appropriate height.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (8)

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).

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