CN113371652B - Split portable cover plate cover lifting equipment - Google Patents

Split portable cover plate cover lifting equipment Download PDF

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Publication number
CN113371652B
CN113371652B CN202110648801.9A CN202110648801A CN113371652B CN 113371652 B CN113371652 B CN 113371652B CN 202110648801 A CN202110648801 A CN 202110648801A CN 113371652 B CN113371652 B CN 113371652B
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China
Prior art keywords
lifting
rotating
rod
limiting
rotating shaft
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CN202110648801.9A
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CN113371652A (en
Inventor
杨昕
王宇健
杨轶
毛炜煜
吴振宇
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Quzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Quzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Publication of CN113371652A publication Critical patent/CN113371652A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00Hoisting, lifting, hauling or pushing, not otherwise provided for
    • B66F19/005Lifting devices for manhole covers

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention discloses split portable cover plate cover lifting equipment, and aims to provide the split portable cover plate cover lifting equipment which is high in cover lifting and carrying work efficiency of a cable trench cover plate and good in operation safety. The trolley comprises a split trolley group, wherein the split trolley group comprises two carrying trolleys, and each carrying trolley comprises a frame and frame idler wheels; the lifting device comprises vertical guide sleeves arranged on the frame, lifting rods arranged in the vertical guide sleeves in a sliding mode, lifting hooks arranged at the lower ends of the lifting rods and a lifting execution mechanism arranged on the frame and used for driving the lifting rods to lift up and down, and the lifting hooks are located below the frame.

Description

Split portable cover plate cover lifting equipment
Technical Field
The invention relates to a cable trench cover lifting device, in particular to split portable cover plate cover lifting equipment.
Background
In the cable and the channel maintenance and repair process, a large amount of cover lifting and cable trench cover plate carrying work is often required. The current cable trench cover plate is generally made of reinforced concrete, the dead weight of the cable trench cover plate is generally 0.2 to 0.3 ton, and the thickness of the cable trench cover plate is about 15 to 20 centimeters; the existing cable trench cover lifting and carrying construction modes of the cable trench cover have the following problems that firstly, the potential safety hazard exists, and when the cable trench cover is lifted and carried manually by hands, the lifting and putting time is inconsistent due to different force applied by each person, so that the cover plate is easy to damage hands, and the potential safety hazard exists; secondly, the working efficiency is low, when the cable trench cover is manually tilted and moved, due to the fact that the cover is heavy in weight, more than 4 persons are generally needed for multi-person cooperative operation, and the working efficiency is low; particularly, when the cable trench cover plate is tightly extruded with the periphery, the cover plate needs to be tilted by a crowbar repeatedly and then lifted, so that more people are needed, and time and labor are wasted; meanwhile, when the cover plate is carried, the cover plate can fall off, the carrying quality is reduced, and the safety of carrying the cover plate is reduced.
Disclosure of Invention
The invention aims to provide a split portable cover plate cover lifting device for a cable trench cover, which has high working efficiency of cover lifting and carrying and good operation safety.
The technical scheme of the invention is as follows:
a split portable lid lifting device comprising:
the split trolley set comprises two carrying trolleys, and each carrying trolley comprises a frame and frame idler wheels;
the lifting device comprises vertical guide sleeves arranged on the frame, lifting rods arranged in the vertical guide sleeves in a sliding mode, lifting hooks arranged at the lower ends of the lifting rods and a lifting execution mechanism arranged on the frame and used for driving the lifting rods to lift up and down, and the lifting hooks are located below the frame.
When the split portable cover plate cover lifting equipment lifts the cable trench cover plate, one carrying trolley is moved to one end of the cable trench cover plate, and the other carrying trolley is moved to the other end of the cable trench cover plate; then, the lifting actuating mechanisms on the two carrying trolleys drive the lifting rods to descend to the right position; then hooking the lifting hook on a lifting ring or a lifting hole on the upper surface of the cable trench cover plate; then, the lifting actuating mechanism drives the lifting rod to move upwards so as to lift the cable trench cover plate, and then the lifted cable trench cover plate is conveyed by the two conveying trolleys, so that the operation is convenient, the cover lifting and conveying work efficiency is high, and the operation safety is good.
On the other hand, split type trolley group comprises two independent floor trucks, so, can effectually reduce floor truck's volume to floor truck's carrying and transportation are convenient for.
Preferably, the frame rollers include two front rollers and one rear roller.
Preferably, the frame is T-shaped and comprises a cross beam, a longitudinal beam connected with the cross beam and a mounting seat arranged on a connecting part of the cross beam and the longitudinal beam, the two front rollers are arranged at two ends of the cross beam in one-to-one correspondence, and the rear rollers are arranged at the end part of the longitudinal beam. Therefore, the frame structure can be effectively simplified under the condition that the stability of the carrying trolley is not influenced.
Preferably, the vertical guide sleeve is arranged on the mounting seat, and the lifting execution mechanism is also arranged on the mounting seat. So, can guarantee when lifting by crane cable trench cover, the stability of floor truck.
Preferably, the frame rollers are universal rollers.
Preferably, the device also comprises a rotary type anti-dumping device, wherein the rotary type anti-dumping devices correspond to the carrying trolleys one by one and are used for preventing the cable trench cover plate lifted by the lifting device from dumping; the upper end of the lifting rod is provided with a connecting beam, the rotary type anti-toppling device comprises a pressing roller arranged on the connecting beam, a rotary supporting rod rotationally arranged on the frame through a first horizontal rotating shaft, a supporting plate arranged at the lower end of the rotary supporting rod, a front rotary limiting part and a rear rotary limiting part which are arranged on the frame and used for limiting the rotating angle of the rotary supporting rod, a torsional spring used for driving the rotary supporting rod to rotate in the direction of the limiting part backwards rotating around the first horizontal rotating shaft, a rotary pressure rod rotationally arranged on the rotary supporting rod through a second horizontal rotating shaft, an angle limiting part arranged on the rotary supporting rod and used for limiting the rotating angle of the rotary pressure rod, and a spreading spring positioned between the rotary supporting rod and the rotary pressure rod, the lifting rod is provided with a lower limiting block, and the lower limiting block is positioned below the vertical guide sleeve;
the supporting plate is positioned below the frame, the front rotating limiting part and the rear rotating limiting part are positioned below the frame, the rotating supporting rod is positioned between the front rotating limiting part and the rear rotating limiting part, the front rotating limiting part and the lifting rod are positioned on the same side of the rotating supporting rod, the second horizontal rotating shaft is parallel to the first horizontal rotating shaft, the second horizontal rotating shaft is positioned above the first horizontal rotating shaft, the upper end of the rotating pressing rod inclines towards the direction of the connecting beam, and the expanding spring is used for providing elastic force so that the rotating pressing rod rotates towards the direction of the pressing roller;
when the lower limiting block abuts against the lower end of the vertical guide sleeve, the rotating pressure rod abuts against the corresponding abutting roller, the rotating support rod abuts against the front rotating limiting part, the rotating support rod is in a vertical state, and the support plate is in a horizontal state;
in the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to move upwards, the abutting roller abuts against the corresponding rotating pressure rod, and the rotating support rod is driven by the spreading spring to rotate around the first horizontal rotating shaft in the direction of the forward rotating limiting piece;
in the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to descend, the rotating supporting rod rotates around the first horizontal rotating shaft in the direction of the backward rotating limiting piece under the action of the torsion spring.
When the cable trench cover plate is lifted, the lifting actuating mechanism drives the connecting beam and the lifting rod to descend to the right position, and in the process, the rotating supporting rod rotates around the first horizontal rotating shaft in the direction of the backward rotating limiting part under the action of the torsion spring until the rotating supporting rod abuts against the backward rotating limiting part; then, hooking the lifting hook on a lifting ring or a lifting hole on the upper surface of the cable trench cover plate; then, the lifting actuating mechanism drives the connecting beam and the lifting rod to move upwards until the limiting block abuts against the lower end of the vertical guide sleeve, in the process, the abutting roller abuts against the corresponding rotating pressing rod, the rotating supporting rod is driven to rotate around the first horizontal rotating shaft forward in the direction of the limiting block through the expanding spring, and the end part of the supporting plate abuts against the side face of the cable trench cover plate; then the rotating support rod stops rotating, and the rotating pressure rod overcomes the elastic force of the opening spring and rotates around the second horizontal rotating shaft to the direction close to the rotating support rod; when the lower limiting block abuts against the lower end of the vertical guide sleeve, the cable trench cover plate moves to the position above the supporting plate, at the moment, the rotating supporting rod rotates forwards around the first horizontal rotating shaft under the action of the opening spring and abuts against the front rotating limiting part, and when the rotating supporting rod abuts against the front rotating limiting part, the supporting plate is located below the cable trench cover plate and used for preventing the cable trench cover plate lifted by the lifting device from toppling over. More importantly, due to the arrangement of the rotating pressure rod and the expanding spring, in the process of lifting the cable trench cover plate, the problems that the rotating support rod and the connecting beam are clamped because the end part of the support plate abuts against the side surface of the cable trench cover plate, and finally the lifting execution mechanism cannot drive the connecting beam and the lifting rod to move upwards, and the cable trench cover plate is lifted are failed can be solved; and because the tip of backup pad supports on the side of cable trench cover, when the cable trench cover removes the top of removing the backup pad, the rotation bracing piece can be in time under the effect of strutting the spring around first horizontal rotating shaft forward rotate the locating part direction and rotate, make the backup pad be located the below of cable trench cover, with very big reduction backup pad and cable trench cover between the clearance, make the backup pad can effectually hold the cable trench cover, prevent to be toppled over by the cable trench cover that hoisting accessory hoisted, thereby realize preventing that the cable trench cover from moving the in-process and taking place to topple over, and destroy the problem of cable trench cover.
Preferably, the angle limiting piece is provided with an arc-shaped limiting groove extending circumferentially around the second horizontal rotating shaft, the rotating pressure rod is provided with a limiting pin parallel to the second horizontal rotating shaft, and the limiting pin is inserted in the arc-shaped limiting groove.
Preferably, the lower end of the lifting rod is provided with a hanging ring, the upper end of the lifting hook is provided with an upper hook, and the upper hook is hung on the hanging ring.
The beneficial effects of the invention are: the cover lifting and carrying work efficiency of the cable trench cover plate is high, the operation safety is good, and the problem that the cable trench cover plate is damaged due to toppling in the carrying process of the cable trench cover plate can be solved.
Drawings
Fig. 1 is a schematic structural view of the carrying trolley of the present invention and a lifting device and a rotary anti-toppling device thereon.
Fig. 2 is a plan view of the carrier and the lifting device on the carrier of the present invention (i.e., a plan view of the carrier with the rotatable anti-tilt device removed).
Fig. 3 is a schematic structural diagram of the split portable cover plate cover-lifting device in the process of lifting the cable trench cover plate.
Fig. 4 is a schematic structural diagram of the cable trench cover lifting device for lifting the cable trench cover.
In the figure:
the device comprises a carrying trolley 1, a frame 1.1, a cross beam 1.11, a longitudinal beam 1.12, a mounting seat 1.13, a frame roller 1.2, a front roller 1.21 and a rear roller 1.22;
the lifting device 2, the vertical guide sleeve 2.1, the lifting rod 2.2, the connecting beam 2.3, the lifting actuating mechanism 2.4, the lower limiting block 2.5 and the lifting hook 2.6;
a rotary type anti-toppling device 3, a pressing roller 3.0, a first horizontal rotating shaft 3.1, a rotary supporting rod 3.2, a supporting plate 3.3, a front rotary limiting piece 3.4, a rear rotary limiting piece 3.5, a rotary pressing rod 3.6, an angle limiting piece 3.7, a support spring 3.8, a second horizontal rotating shaft 3.9, an arc-shaped limiting groove 3.10 and a limiting pin 3.11;
cable trench cover 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Other embodiments obtained by persons skilled in the art without making creative efforts based on the embodiments in the implementation belong to the protection scope of the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 and 2, a split portable cover plate cover lifting device includes a split trolley set, a lifting device 2 and a rotary anti-toppling device 3.
The split trolley group comprises two carrying trolleys 1, and each carrying trolley comprises a trolley frame 1.1 and trolley frame idler wheels 1.2.
The hoisting devices 2 correspond to the carrying trolleys one by one, and are arranged on the frames of the corresponding carrying trolleys. The lifting device 2 comprises a vertical guide sleeve 2.1 arranged on the frame, a lifting rod 2.2 arranged in the vertical guide sleeve in a sliding manner, a lifting hook 2.6 arranged at the lower end of the lifting rod, and a lifting actuating mechanism 2.4 arranged on the frame and used for driving the lifting rod to lift up and down. The lifting hook is positioned below the frame. The lifting rod is provided with a lower limiting block 2.5, and the lower limiting block is positioned below the vertical guide sleeve. In this embodiment, the lifting actuator is an oil cylinder, an electric cylinder, a manual jack or a hydraulic jack. In this embodiment, the lifter lower extreme is equipped with the link, and the upper end of lifting hook is equipped with the couple, goes up the couple and hangs on the link.
When the cover lifting device for the split portable cover plate of the embodiment lifts the cable trench cover plate, as shown in fig. 3, one of the transport trolleys is moved to one end of the cable trench cover plate, and the other transport trolley is moved to the other end of the cable trench cover plate (the cable trench cover plate is rectangular); then, the lifting actuating mechanisms on the two carrying trolleys drive the lifting rods to descend to the right position; then hooking the lifting hook on a lifting ring or a lifting hole on the upper surface of the cable trench cover plate; then, the lifting actuating mechanism drives the lifting rod to move upwards so as to lift the cable trench cover plate, and then the lifted cable trench cover plate is conveyed by the two conveying trolleys, so that the operation is convenient, the cover lifting and conveying work efficiency is high, and the operation safety is good.
Specifically, as shown in fig. 1 and 2, the frame roller includes two front rollers 1.21 and one rear roller 1.22. In this embodiment, the carriage rollers are universal rollers. The frame 1.1 is T-shaped, and the frame comprises a cross beam 1.11, a longitudinal beam 1.12 connected with the cross beam and a mounting seat 1.13 arranged on the connecting part of the cross beam and the longitudinal beam. The two front rollers are arranged at two ends of the beam in a one-to-one correspondence mode, and the rear rollers are arranged at the end portions of the longitudinal beam. Therefore, the frame structure can be effectively simplified under the condition that the stability of the carrying trolley is not influenced.
The vertical guide sleeve is arranged on the mounting seat, and the lifting execution mechanism is also arranged on the mounting seat. So, can guarantee when lifting by crane cable trench cover, the stability of floor truck.
Further, as shown in fig. 1 and 2, the split portable cover lifting apparatus further includes a rotating anti-tipping device 3. The rotary type anti-dumping device is in one-to-one correspondence with the carrying trolley and used for preventing the cable trench cover plate lifted by the lifting device from dumping. The upper end of the lifting rod is provided with a connecting beam 2.3, and the lifting actuating mechanism lifts the lifting rod through the connecting beam.
Rotary type anti-overturning device 3 is including setting up the gyro wheel 3.0 that supports on the tie-beam, rotate rotational support pole 3.2 of setting on the frame through first horizontal rotating shaft 3.1, the setting is in the backup pad 3.3 of rotational support pole lower extreme, two rotation locating parts around setting up the turned angle who is used for spacing rotational support pole on the frame, be used for driving the rotational support pole around first horizontal rotating shaft backward rotation locating part direction pivoted torsional spring, rotate rotational depression bar 3.6 of setting on rotational support pole through second horizontal rotating shaft 3.9, the setting is used for limiting rotational angle's of rotational depression bar angle locating part 3.7 and is located rotational support pole and rotational depression bar between strut spring 3.8.
The angle limiting piece is provided with an arc limiting groove 3.10 extending circumferentially around the second horizontal rotating shaft, the rotating pressure rod is provided with a limiting pin 3.11 parallel to the second horizontal rotating shaft, and the limiting pin is inserted in the arc limiting groove.
The rotary supporting rods extend up and down. The supporting plate is positioned below the frame, and the supporting plate and the front rotation limiting part 3.4 are positioned on the same side of the rotation supporting rod. The front rotation limiting part 3.4 and the rear rotation limiting part 3.5 are positioned below the frame. The rotary supporting rod is positioned between the front rotary limiting part and the rear rotary limiting part, and the front rotary limiting part and the lifting rod are positioned on the same side of the rotary supporting rod. In this embodiment, the rear rotation limiting member and the rear roller are located on the same side of the rotation supporting rod. The second horizontal rotating shaft is parallel to the first horizontal rotating shaft and is positioned above the first horizontal rotating shaft. In this embodiment, the lower end of the rotating pressure lever is rotatably disposed on the rotating support rod through the second horizontal rotating shaft, and the upper end of the rotating pressure lever is inclined toward the connecting beam. One end of the opening spring is connected with the rotating support rod, and the other end of the opening spring is connected with the rotating pressure rod. The expanding spring is used for providing elastic force so that the rotating pressure rod rotates towards the direction of the abutting roller. The expanding spring is composed of a pre-tightening compression spring.
As shown in fig. 1, when the rotation support rod abuts against the front rotation limiting member, the rotation support rod is in a vertical state, and the support plate is in a horizontal state.
As shown in fig. 1, when the lower limiting block abuts against the lower end of the vertical guide sleeve, the rotating pressure rod abuts against the corresponding abutting roller, the rotating support rod abuts against the front rotating limiting part, the rotating support rod is in a vertical state, and the support plate is in a horizontal state.
In the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to move upwards, the pressing roller is pressed against the corresponding rotating pressure rod, and the opening spring overcomes the acting force of the torsion spring to drive the rotating support rod to rotate forwards around the first horizontal rotating shaft in the direction of the limiting part.
In the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to descend, the rotating supporting rod rotates around the first horizontal rotating shaft in the direction of the backward rotating limiting part under the action of the torsion spring.
When the cable trench cover plate is lifted, as shown in fig. 3, the lifting actuator drives the connecting beam and the lifting rod to descend to the right position, in the embodiment, the lifting actuator drives the connecting beam and the lifting rod to descend to the right position, namely the connecting beam abuts against the upper end of the vertical guide sleeve; in the process, the rotating support rod rotates around the first horizontal rotating shaft in the direction of the backward rotation limiting piece under the action of the torsion spring until the rotating support rod abuts against the backward rotation limiting piece;
then, hooking the lifting hook on a lifting ring or a lifting hole on the upper surface of the cable trench cover plate 4;
then, as shown in fig. 4, the lifting executing mechanism drives the connecting beam and the lifting rod to move upwards until the limiting block abuts against the lower end of the vertical guide sleeve, so that the cable trench cover plate is lifted; in the process, the pressing rollers are pressed against the corresponding rotating pressure rods, the rotating support rods are driven to rotate around the first horizontal rotating shaft in the direction of the front rotating limiting part through the expanding springs, and the end parts of the support plates are pressed against the side surfaces of the cable trench cover plates; then the rotating support rod stops rotating, and the rotating pressure rod overcomes the elastic force of the opening spring and rotates around the second horizontal rotating shaft to the direction close to the rotating support rod; when the lower limiting block abuts against the lower end of the vertical guide sleeve, the cable trench cover plate moves to the position above the supporting plate, at the moment, the rotating supporting rod rotates forwards around the first horizontal rotating shaft under the action of the expanding spring in the direction of the rotating limiting part and abuts against the front rotating limiting part, and when the rotating supporting rod abuts against the front rotating limiting part, the supporting plate is located below the cable trench cover plate and used for preventing the cable trench cover plate lifted by the lifting device from toppling over. The supporting plates on the two carrying trolleys are positioned below the cable trench cover plate, and in the process of carrying the cable trench cover plate by the two carrying trolleys, once the cable trench cover plate is inclined, the cable trench cover plate can be dragged by the supporting plates on the two carrying trolleys, so that the problem that the cable trench cover plate is damaged due to the fact that the cable trench cover plate is toppled in the carrying process is solved.
More importantly, due to the arrangement of the rotating pressure rod and the expanding spring, the problems that the rotating support rod and the connecting beam are clamped because the end part of the support plate abuts against the side surface of the cable trench cover plate, and finally the lifting execution mechanism cannot drive the connecting beam and the lifting rod to move upwards to cause failure in lifting the cable trench cover plate can be prevented in the process of lifting the cable trench cover plate; and because the tip of backup pad supports on the side of cable trench cover, when cable trench cover removes the top of removing to the backup pad, the rotation bracing piece can be in time rotate the locating part direction around first horizontal rotating shaft forward under the effect of strutting the spring and rotate, make the backup pad be located the below of cable trench cover, with the very big clearance that reduces between backup pad and the cable trench cover, make the backup pad can effectually hold the cable trench cover, prevent to be toppled over by the cable trench cover that hoisting accessory hoisted, thereby realize preventing that the cable trench cover from moving the in-process and taking place to topple over, and destroy the problem of cable trench cover.
Furthermore, the end part of the supporting plate is provided with a circular arc-shaped bulge. Therefore, in the process of hoisting the cable trench cover plate, the support plate is contacted with the side surface of the cable trench cover plate through the circular arc-shaped bulge, and the friction between the support plate and the side surface of the cable trench cover plate can be reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a portable apron of components of a whole that can function independently lifts and covers equipment which characterized by includes:
the split type trolley set comprises two carrying trolleys, and each carrying trolley comprises a frame and frame rollers;
the lifting devices correspond to the carrying trolleys one by one and are arranged on the frames of the corresponding carrying trolleys, each lifting device comprises a vertical guide sleeve arranged on each frame, a lifting rod arranged in the vertical guide sleeve in a sliding mode, a lifting hook arranged at the lower end of each lifting rod and a lifting executing mechanism arranged on each frame and used for driving each lifting rod to lift up and down, and each lifting hook is located below each frame;
the rotary type anti-dumping devices correspond to the carrying trolleys one by one and are used for preventing the cable trench cover plate lifted by the lifting device from dumping; the upper end of the lifting rod is provided with a connecting beam,
the rotary type anti-toppling device comprises abutting idler wheels arranged on a connecting beam, a rotary supporting rod arranged on a frame in a rotating mode through a first horizontal rotating shaft, a supporting plate arranged at the lower end of the rotary supporting rod, a front rotary limiting part and a rear rotary limiting part which are arranged on the frame and used for limiting the rotating angle of the rotary supporting rod, a torsional spring used for driving the rotary supporting rod to rotate backwards in the direction of the limiting parts around the first horizontal rotating shaft, a rotary pressing rod arranged on the rotary supporting rod in a rotating mode through a second horizontal rotating shaft, an angle limiting part arranged on the rotary supporting rod and used for limiting the rotating angle of the rotary pressing rod, and a propping spring located between the rotary supporting rod and the rotary pressing rod, wherein a lower limiting block is arranged on the lifting rod and is located below a vertical guide sleeve;
the supporting plate is positioned below the frame, the front rotating limiting part and the rear rotating limiting part are positioned below the frame, the rotating supporting rod is positioned between the front rotating limiting part and the rear rotating limiting part, the front rotating limiting part and the lifting rod are positioned on the same side of the rotating supporting rod, the second horizontal rotating shaft is parallel to the first horizontal rotating shaft, the second horizontal rotating shaft is positioned above the first horizontal rotating shaft, the upper end of the rotating pressing rod inclines towards the direction of the connecting beam, and the expanding spring is used for providing elastic force so that the rotating pressing rod rotates towards the direction of the pressing roller;
when the lower limiting block abuts against the lower end of the vertical guide sleeve, the rotating pressing rod abuts against the corresponding abutting roller, the rotating supporting rod abuts against the front rotating limiting piece, the rotating supporting rod is in a vertical state, and the supporting plate is in a horizontal state;
in the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to move upwards, the pressing roller is pressed against the corresponding rotating pressure rod, and the rotating support rod is driven by the expanding spring to rotate around the first horizontal rotating shaft in the direction of the forward rotating limiting part;
in the process that the lifting actuating mechanism drives the connecting beam and the lifting rod to descend, the rotating supporting rod rotates around the first horizontal rotating shaft in the direction of the backward rotating limiting part under the action of the torsion spring.
2. The cover lifting device of claim 1, wherein the carriage rollers comprise two front rollers and one rear roller.
3. The cover lifting device of claim 2, wherein the frame is T-shaped and comprises a cross member, a longitudinal member connected to the cross member, and a mounting seat disposed on the connecting portion between the cross member and the longitudinal member, wherein the two front rollers are disposed at the two ends of the cross member in a one-to-one correspondence, and the rear roller is disposed at the end portion of the longitudinal member.
4. The split portable cover lifting device as recited in claim 3, wherein the vertical guide is disposed on a mounting base, and the lifting actuator is also disposed on the mounting base.
5. The cover lifting device of claim 1, 2, 3 or 4, wherein the carriage rollers are universal rollers.
6. The cover lifting device of claim 1, 2, 3 or 4, wherein when lifting the cable trench cover, the lifting actuator drives the connecting beam and the lifting rod to descend to a proper position, and during the process, the rotating support rod rotates around the first horizontal rotating shaft in the direction of the backward rotation limiting member under the action of the torsion spring until the rotating support rod abuts against the backward rotation limiting member; then, hooking the lifting hook on a lifting ring or a lifting hole on the upper surface of the cable trench cover plate; then, the lifting actuating mechanism drives the connecting beam and the lifting rod to move upwards until the limiting block abuts against the lower end of the vertical guide sleeve, in the process, the abutting roller abuts against the corresponding rotating pressure rod, the rotating support rod is driven to rotate forwards around the first horizontal rotating shaft in the direction of the limiting block by the expanding spring, and the end part of the support plate abuts against the side surface of the cable trench cover plate; then the rotating support rod stops rotating, and the rotating pressure rod overcomes the elastic force of the opening spring and rotates around the second horizontal rotating shaft to the direction close to the rotating support rod; when the lower limiting block abuts against the lower end of the vertical guide sleeve, the cable trench cover plate moves to the position above the supporting plate, at the moment, the rotating supporting rod rotates forwards around the first horizontal rotating shaft under the action of the opening spring in the direction of the forward rotating limiting part and abuts against the forward rotating limiting part, and when the rotating supporting rod abuts against the forward rotating limiting part, the supporting plate is located below the cable trench cover plate and used for preventing the cable trench cover plate lifted by the lifting device from toppling over.
7. The cover lifting device of claim 6, wherein the angle limiting member has an arc-shaped limiting groove extending circumferentially around the second horizontal rotating shaft, the rotating pressing rod has a limiting pin parallel to the second horizontal rotating shaft, and the limiting pin is inserted into the arc-shaped limiting groove.
8. The cover lifting device of claim 1, 2, 3 or 4, wherein the lower end of the lifting rod is provided with a hanging ring, the upper end of the lifting hook is provided with an upper hook, and the upper hook is hung on the hanging ring.
CN202110648801.9A 2021-06-10 2021-06-10 Split portable cover plate cover lifting equipment Active CN113371652B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110648801.9A CN113371652B (en) 2021-06-10 2021-06-10 Split portable cover plate cover lifting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110648801.9A CN113371652B (en) 2021-06-10 2021-06-10 Split portable cover plate cover lifting equipment

Publications (2)

Publication Number Publication Date
CN113371652A CN113371652A (en) 2021-09-10
CN113371652B true CN113371652B (en) 2022-07-26

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CN114273251B (en) * 2021-11-12 2023-10-03 国网浙江省电力有限公司衢州供电公司 Old meter sorting equipment of electric energy meter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206886632U (en) * 2017-05-17 2018-01-16 燕开电气股份有限公司 A kind of cable channel cover plate handling device
CN212076178U (en) * 2019-12-30 2020-12-04 陕西天汇电力建设工程有限公司 Hoisting accessory is used in installation of large-scale power equipment
CN212832425U (en) * 2020-07-06 2021-03-30 卫华建工集团有限公司 Hoisting tool applied to building construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206886632U (en) * 2017-05-17 2018-01-16 燕开电气股份有限公司 A kind of cable channel cover plate handling device
CN212076178U (en) * 2019-12-30 2020-12-04 陕西天汇电力建设工程有限公司 Hoisting accessory is used in installation of large-scale power equipment
CN212832425U (en) * 2020-07-06 2021-03-30 卫华建工集团有限公司 Hoisting tool applied to building construction

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