Portable cover plate hoisting structure

Abstract

The portable cover hoisting structure comprises lifting claws, at least two of which are oppositely arranged on two sides of a cover for clamping the cover; two lifting rods, one end of each of which is arranged on the lifting claws oppositely arranged on the two sides of the cover, and the other end of each of the two lifting rods is arranged in staggered overlap; and a shackle, which is used for connecting the parts of the two lifting rods arranged in staggered overlap. The hoisting tool is light in weight, easy to carry, fast to install, simple in structure and easy to manufacture.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cover plate manufacturing, installation and maintenance, and more particularly to a portable cover plate hoisting structure. BACKGROUND

[0002] Various types of cover plates are installed in cable trenches of power plants, transformer substations, switch stations, drainage trenches on both sides of traffic roads, and intake gate trenches of hydropower stations, for vehicle and personnel passage, to prevent tools and materials from falling, and some cover plates are opened and closed by utilizing the gap on both sides. When performing maintenance and repair of equipment and facilities in the trench, the cover plates need to be opened and closed, and whether the hoisting method and tool of the cover plate are safe, reliable, convenient and fast will directly affect whether the maintenance and repair of the equipment and facilities can be safely and efficiently performed.

[0003] At present, the opening and closing method of the cover plate mainly includes: a large gap is set every certain number of cover plates, a special steel cover plate is used for protection, when a certain equipment and facility under the cover plate needs to be maintained and repaired, the steel cover plate set near the cover plate is opened, and all the cover plates from the gap to the maintenance point are hoisted in sequence. This method needs to open a large number of cover plates, has a large safety protection area, is low in work efficiency, and is high in labor intensity. SUMMARY

[0004] The present application aims to provide a portable cover plate hoisting structure to solve the technical problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A portable cover plate hoisting structure comprises:

[0007] A lifting claw is arranged on each side of the cover plate to clamp the cover plate.

[0008] Two lifting rods are arranged on the lifting claws on both sides of the cover plate, and the other ends of the two lifting rods are arranged in a staggered and overlapped manner.

[0009] A shackle is arranged to connect the two lifting rods arranged in a staggered and overlapped manner.

[0010] In some embodiments, the lifting claw comprises a claw rod, the bottom of the claw rod is provided with a hook, the claw rod and the hook are in an L shape, a limiting block is arranged on the claw rod opposite to the hook, and the distance between the hook and the limiting block is greater than or equal to the thickness of the cover plate.

[0011] In some embodiments, a plurality of strip-shaped tooth grooves are arranged on the surface of the hook.

[0012] In some embodiments, the claw rod above the limiting block is provided with a plurality of tooth grooves for limiting the lifting rod.

[0013] In some embodiments, the lifting rod is provided with a first square hole on the side matched with the lifting claw; the other side of the lifting rod is provided with a lifting hole, wherein the lifting holes of the two mutually matched lifting rods are oppositely arranged.

[0014] In some embodiments, the limiting connecting rod comprises a connecting rod and connecting heads arranged at both ends of the connecting rod, and the connecting heads are provided with second square holes matched with the lifting rod.

[0015] Compared with the prior art, the present application has the beneficial effects that:

[0016] 1. The lifting tool has simple structure, easy manufacturing and low cost.

[0017] 2. The lifting tool is easy to install and disassemble, light in weight, easy to carry and can effectively reduce labor intensity.

[0018] 3. The lifting tool has high strength, good stability and high safety.

[0019] 4. The lifting tool can be repeatedly used and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 : schematic view of the structure of the lifting claw;

[0021] Figure 2 : schematic view of the structure of the limiting connecting rod;

[0022] Figure 3 : schematic view of the structure of the lifting rod;

[0023] Figure 4 : schematic view of the structure of the portable cover plate lifting structure;

[0024] Figure 5 : schematic view of the installation of the lifting claw Figure 1 ;

[0025] Figure 6 : schematic view of the installation of the lifting claw Figure 2 ;

[0026] Figure 7 : schematic view of the installation of the limiting connecting rod;

[0027] Figure 8 : schematic view of the installation of the lifting rod and the shackle;

[0028] Figure 9 : schematic view of the application of the portable cover plate lifting structure Figure 1 ;

[0029] Figure 10 : A portable cover plate hoisting structure application diagram Figure 2 . DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below in combination with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar notations represent the same or similar parts or parts having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0031] The embodiments of the present application will be described in detail below in combination with the drawings.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or display including a series of steps or units need not be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0035] The following will be described in combination with Figures 1-10 A portable cover plate hoisting structure according to the embodiments of the present application will be described in detail. It should be noted that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application.

[0036] Embodiment 1:

[0037] Referring to Figures 1-10 As shown in the drawings, a portable cover hoisting structure comprises a lifting claw 1, a lifting rod 3, and a shackle 4. At least two lifting claws are arranged on the two sides of the cover respectively for clamping the cover. The lifting claw comprises a claw rod 1-3, the bottom of the claw rod is provided with a hook 1-1, the claw rod and the hook are in L shape, a limiting block 1-4 is arranged on the claw rod opposite to the hook, and the distance between the hook and the limiting block is greater than or equal to the thickness of the cover.

[0038] The lifting rod is in L shape, the structure width is small, the lifting rod can enter the gap between adjacent covers, and the lifting rod can hook the lower side of the cover after being rotated by 90°. A strip-shaped tooth groove 1-2 is arranged on the surface of the hook to increase the friction between the lifting claw and the cover. A limiting block is arranged on the inner side of the claw rod to prevent the lifting claw from sliding into the groove when the lifting claw is placed. A tooth groove 1-5 is processed on the inner side of the claw rod to cooperate with the lifting rod and prevent the lifting claw from slipping off during hoisting.

[0039] One end of the two lifting rods is arranged on the lifting claw arranged on the two sides of the cover respectively, and the other end of the two lifting rods is arranged in a staggered and overlapped manner. The shackle is used to connect the two lifting rods arranged in a staggered and overlapped manner. Then the two lifting rods are hoisted through the shackle.

[0040] The lifting rod is provided with a first square hole on the side matched with the lifting claw. The other side of the lifting rod is provided with a hoisting hole 3-2, wherein the hoisting holes of the two lifting rods matched with each other are arranged opposite to each other. The first square hole cooperates with the lifting claw to prevent rotation. The square hole upper edge 3-1 of the first square hole is in contact with the tooth groove of the lifting claw to form mechanical cooperation to prevent the lifting claw from slipping off during hoisting. The hoisting hole 3-2 of the lifting rod is a waist-shaped hole to adapt to the different cooperation heights of the lifting rod and the lifting claw and is used for installing the shackle.

[0041] In some embodiments, a limiting connecting rod 2 is further included, the limiting connecting rod comprises a connecting rod 2-3 and connecting heads 2-1 arranged at both ends of the connecting rod, and a second square hole 2-2 matched with the lifting rod is arranged on the connecting head. The two connecting heads on the two sides are fixed together through the connecting rod to achieve the purpose of fixing the lifting claw and ensure the stability of the tool during hoisting. The second square hole is arranged in the connecting head to fix the direction of the lifting claw and prevent the lifting claw from rotating.

[0042] The use method of the portable cover hoisting structure of the present application is as follows:

[0043] 1. Insert the lifting claw into the gap between the adjacent covers, rotate the lifting claw by 90° to make the hook perpendicular to the cover, and place the limiting block above the cover to prevent the lifting claw from falling off.

[0044] 2. Install the limiting connecting rod, and form a whole for each set of lifting device to prevent rotation and falling off.

[0045] 3. Install the hanger and the shackle, the hanger and the hanger claw tooth groove are matched to form reliable connection. Provide the lifting point for the opening and closing cover plate.

[0046] 4. Hoist through the shackle.

[0047] The tool can be used for opening and closing the cover plate of the cable trench, the drainage trench, the gate trench of the hydropower station, etc. The tool changes the existing cover plate opening and closing mode, and for a specific maintenance point, without opening multiple cover plates, the existing gap between the cover plates is used to open and close the specified cover plate. The lifting tool is light in weight, easy to carry, quick to install, simple in structure and easy to manufacture.

[0048] The above only describes the preferred embodiments of the present application and is used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable cover hoisting structure, characterized in that: include: At least two lifting claws are respectively arranged on two sides of the cover plate and are used to clamp the cover plate; Hanging rods, one end of the two hanging rods is respectively arranged on the hanging claws arranged opposite to each other on both sides of the cover plate, and the other ends of the two hanging rods are staggered and overlapped; A shackle, which is used to connect the parts of two booms that are offset and overlapped; The lifting claw includes a claw rod, a hook claw is provided at the bottom of the claw rod, the claw rod and the hook claw are L-shaped, and a limit block is provided on the claw rod opposite to the hook claw, and the distance between the hook claw and the limit block is greater than or equal to the thickness of the cover plate; The hook surface is provided with a plurality of strip-shaped tooth grooves; The limit link also includes a connecting rod, the limit link including a connecting rod and connecting heads provided at both ends of the connecting rod, the connecting heads are provided with a second square hole matched with the suspension rod; A plurality of tooth grooves are provided on the claw rod above the limit block for limiting the suspension rod.

2. A portable cover hoisting structure according to claim 1, characterized in that: The suspension rod is provided with a first square hole on one side thereof which matches with the suspension claw; a lifting hole is provided on the other side of the suspension rod, wherein the lifting holes of the two mutually matching suspension rods are arranged opposite to each other.

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