Balanced hoisting device for rectangular corrugated pipe

Abstract

The utility model discloses a balanced hoisting device for a rectangular corrugated pipe, which relates to the field of hoisting of rectangular corrugated pipes and comprises a frame, a plurality of L-shaped plates are connected onto the frame in a sliding manner, a plurality of limiting plates are arranged on each L-shaped plate, and each limiting plate is abutted against the inner wall of the corrugated pipe; a plurality of sliding grooves are formed in the frame, and the sliding grooves are in sliding connection with the L-shaped plates in a one-to-one correspondence mode. By pushing L-shaped plates, limiting plates on the L-shaped plates enter and abut against the interiors of the rectangular corrugated pipes, so that the inner walls of the rectangular corrugated pipes are supported, then fixing lugs are pulled, the whole frame is pulled up, the whole rectangular corrugated pipes are also pulled up, and therefore conveying of the rectangular corrugated pipes is facilitated; and the lifting part is not deformed.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectangular bellows hoisting field, concretely to a rectangular bellows balance hoisting device. BACKGROUND

[0002] It is known that, due to the large size and heavy weight of the rectangular bellows, taking a rectangular bellows with a size of 3m*4m as an example, hoisting, transfer and other operations are generally required in the production process to meet the production requirements.

[0003] The patent application file with the authorized announcement number CN214989639U, the announcement date of December 3, 2021 and the name of "a lifting appliance for vertical hoisting of HEPE double-wall corrugated pipe" includes a lower support structure and an upper support structure, a hoisting station is formed between the lower support structure and the upper support structure and is used for placing the vertical corrugated pipe, the lower support structure and the upper support structure each have a lower support groove and an upper support groove which are annular as a whole and are respectively abutted and supported at both ends of the corrugated pipe; a hoisting rod vertically upward is connected to the lower support structure and is arranged in the same direction as the axis of the corrugated pipe, the upper end of the hoisting rod passes through the mounting hole in the center position of the upper support structure and extends above the upper support structure to form a hoisting connection end connected to the tower crane equipment; a spring mechanism is arranged between the upper end of the hoisting rod and the upper support structure, the lower end of the spring mechanism forms a thrust end and is abutted on the upper support structure. The utility model has the characteristics of simple structure, better applicability and more convenient hoisting of the corrugated pipe in a narrow space.

[0004] In the prior art, during the hoisting of the rectangular bellows, a lifting rope or an iron chain is generally used for direct hoisting, or a conventional clamp is used for hoisting the pipe opening. Although these hoisting methods are simple to operate, the rectangular bellows is a thin-walled part, and the straight edge part has poor rigidity, which causes deformation of the hoisting part of the corrugated pipe and a large change in the pipe opening diameter, seriously affecting the size and appearance of the product. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a rectangular bellows balance hoisting device to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A rectangular bellows balance hoisting device includes a frame, a plurality of L-shaped plates are slidably connected to the frame, a plurality of limiting plates are arranged on each L-shaped plate, and each limiting plate abuts against the inner wall of the corrugated pipe.

[0008] The rectangular bellows balance hoisting device described above has a plurality of sliding grooves formed in the frame, and each sliding groove is slidably connected to each L-shaped plate in a one-to-one correspondence.

[0009] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0010] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0011] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0012] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0013] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0014] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0015] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0016] The rectangular corrugated pipe balance lifting device, the L-shaped plate is provided with a fixing bolt, the fixing bolt penetrates through the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts against the frame.

[0017] In the above technical scheme, the rectangular corrugated pipe balance lifting device provided by the utility model is pushed to make the limiting plate on the L-shaped plate enter and abut against the inside of the rectangular corrugated pipe, so that the inner wall of the rectangular corrugated pipe is supported, then the fixing ear is pulled, the frame as a whole is pulled up, the rectangular corrugated pipe as a whole is also pulled up, so that the rectangular corrugated pipe is conveniently conveyed, and meanwhile, when the rectangular corrugated pipe is lifted, the lifting position will not be deformed. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 A structural schematic view of a rectangular corrugated pipe balanced lifting device provided by the present application embodiment is shown in the figure.

[0020] Figure 2 A lifting state schematic view of a rectangular corrugated pipe balanced lifting device provided by the present application embodiment is shown in the figure.

[0021] Figure 3 A structural schematic view of another embodiment of a rectangular corrugated pipe balanced lifting device provided by the present application embodiment is shown in the figure.

[0022] Figure 4 A structural schematic view of another embodiment of a rectangular corrugated pipe balanced lifting device provided by the present application embodiment is shown in the figure.

[0023] Figure 5 A Figure 4 movement state schematic view of the limiting plate is shown in the figure.

[0024] Explanation of reference signs:

[0025] 1, frame; 2, L-shaped plate; 3, limiting plate; 4, sliding groove; 5, fixing bolt; 6, nut; 7, rib plate; 8, fixing lug; 9, connecting plate; 10, rotating rod; 11, groove; 12, traction rope; 13, return spring; 14, movable groove; 15, lead screw; 16, handle. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail in combination with the drawings.

[0027] Those skilled in the art can understand that obviously, the rectangular corrugated pipe balanced lifting device provided by the present embodiment is not only suitable for rectangular corrugated pipes with a size of 3m x 4m, but also suitable for rectangular corrugated pipes with other sizes, which is only used as an example for the understanding of those skilled in the art.

[0028] As Figures 1-5 shown, the present embodiment provides a rectangular corrugated pipe balanced lifting device, which comprises a frame 1, a plurality of L-shaped plates 2 are slidably connected to the frame 1, a plurality of limiting plates 3 are arranged on each L-shaped plate 2, and each limiting plate 3 abuts against the inner wall of the rectangular corrugated pipe.

[0029] Specifically, the frame 1 is the main structure and is in the shape of a grid. Multiple fixing lugs 8 are provided at the top of the frame 1. When hoisting the entire frame 1, the external hoisting rope is passed through the multiple fixing lugs 8 in sequence, and the hoisting rope is pulled simultaneously, causing the entire frame 1 to be hoisted. The above is existing technology and will not be elaborated further.

[0030] The innovation of this embodiment is that multiple L-shaped plates 2 are slidably connected on the frame 1, and multiple limiting plates 3 are provided on each L-shaped plate 2, with each limiting plate 3 abutting against the inner wall of the rectangular corrugated pipe.

[0031] Specifically, the frame 1 has multiple sliding grooves 4, each of which is slidably connected to each of the L-shaped plates 2; and the L-shaped plates 2 are equipped with fixing bolts 5, which pass through the sliding grooves 4 and extend to the outside of the sliding grooves 4. The end of the fixing bolt 5 extending to the outside of the sliding grooves 4 is threaded with a nut 6, which abuts against the frame 1; the limiting plate 3 is provided with a rubber pad (not shown in the figure); and two ribs 7 are fixed to opposite sides of the L-shaped plates 2, which are used to support the L-shaped plates 2.

[0032] In this embodiment, the fixing bolt 5 is slidably connected to the inside of the sliding groove 4 and abuts against the frame 1 by the nut 6, thereby fixing the position of the fixing bolt 5. At this time, the limiting plate 3 also abuts against the inner wall of the rectangular corrugated pipe, specifically as follows: Figure 2 As shown, two limiting plates 3 are fixedly connected to the L-shaped plate 2. The two limiting plates 3 (in this embodiment, the number of limiting plates 3 can be increased or decreased according to the number of corrugations in the corrugated pipe) are arranged vertically, so that each limiting plate 3 abuts against the inner wall of the rectangular corrugated pipe, thereby supporting its inner wall. It should be noted that the purpose of providing the ribs 7 is to support the L-shaped plate 2 and prevent it from deforming, thus affecting the hoisting operation of the rectangular corrugated pipe.

[0033] Specifically, when hoisting the rectangular corrugated pipe, firstly, the frame 1 is placed inside the rectangular corrugated pipe as a whole. Then, the fixing bolt 5 is pushed to slide inside the sliding groove 4, allowing the limiting plate 3 to enter the interior of the rectangular corrugated pipe and abut against it. Then, the nut 6 is tightened to abut against the frame 1, thereby locking the position between the limiting plate 3 and the rectangular corrugated pipe to lock corrugated pipes of different sizes. By pulling the fixing lug 8, the frame 1 and the rectangular corrugated pipe are lifted and suspended together, thereby transporting the rectangular corrugated pipe.

[0034] The beneficial effects of the embodiment: by pushing the L-shaped plate 2, the limiting plate 3 on the L-shaped plate 2 enters and abuts the inside of the rectangular corrugated pipe, thereby supporting the inner wall of the rectangular corrugated pipe, then pulling the fixing lug 8, the frame 1 is pulled up as a whole, and the rectangular corrugated pipe is also pulled up as a whole, thereby facilitating the transportation of the rectangular corrugated pipe, and the lifting part of the rectangular corrugated pipe will not be deformed when lifting.

[0035] Further, in the above description, when adjusting the position of the limiting plate 3 and the rectangular corrugated pipe, each fixing bolt 5 needs to be manually pushed one by one to enable each limiting plate 3 to enter the inside of the rectangular corrugated pipe, which is more troublesome.

[0036] Therefore, the embodiment provides an adjusting structure, the frame 1 is connected with a connecting plate 9, the connecting plate 9 is rotationally connected with a rotating rod 10, the end of the rotating rod 10 is provided with a plurality of grooves 11, each groove 11 is connected with a traction rope 12, one end of the traction rope 12 is connected with the L-shaped plate 2; one side in the inside of the sliding groove 4 is connected with a return spring 13, one end of the return spring 13 abuts on the fixing bolt 5.

[0037] Specifically, the number of grooves 11 is preferably four, and the four grooves 11 are annularly distributed on the outer surface of the rotating rod 10; the rotating rod 10 penetrates through the connecting plate 9 and extends to the top of the connecting plate 9, and one end of the rotating rod 10 extending to the top of the connecting plate 9 is provided with a rotating part;

[0038] Specifically, during the adjusting process, after the lifting and transportation are completed, the nut 6 is screwed to make the limiting plate 3 lose the locking of the inner wall of the rectangular corrugated pipe, then the rotating rod 10 is screwed to make the rotating rod 10 rotate as a whole, thereby pulling and dragging the plurality of traction ropes 12 to force the fixing bolt 5 and the L-shaped plate 2 to slide on the sliding groove 4, and the return spring 13 is extruded to make it compressed and deformed, thereby pulling out the limiting plate 3 on the L-shaped plate 2 from the inside of the rectangular corrugated pipe, and the lifting and transportation operation of the rectangular corrugated pipe is completed;

[0039] When another rectangular corrugated pipe needs to be hoisted and transported, the frame 1 is hoisted into the interior of the rectangular corrugated pipe as a whole, and then the previously screwed rotating rod 10 is released, and under the rebound of the reset spring 13, the rotating rod 10 is rotated by itself, the fixed bolt 5 is passively slid in the sliding groove 4, the L-shaped plate 2 and the limiting plate 3 are slid into the interior of the rectangular corrugated pipe, and then the nut 6 is screwed to abut against the frame 1, so that the position of the L-shaped plate 2 is locked, that is, the position of the limiting plate 3 in the interior of the rectangular corrugated pipe is locked; without manually adjusting the position of the fixed bolt 5 one by one, only the rotating rod 10 is rotated, the positions of multiple fixed bolts 5 can be adjusted, and thus the convenience of use is improved.

[0040] Further, in the above description, the limiting plate 3 is provided and slid into the interior of the rectangular corrugated pipe to support the rectangular corrugated pipe so that it is hoisted and pulled up, however, during hoisting, the limiting plate 3 is easy to slide between the inner wall of the rectangular corrugated pipe, and thus the rectangular corrugated pipe is easy to slide and fall off during hoisting.

[0041] Therefore, the embodiment provides a locking structure, the interior of the L-shaped plate 2 is provided with a movable groove 14, a lead screw 15 is rotationally connected in the interior of the movable groove 14, one end of the lead screw 15 penetrates through the movable groove 14 and extends to the outside of the movable groove 14, a handle 16 is connected to the end of the lead screw 15 extending to the outside of the movable groove 14, and the limiting plate 3 is threadedly connected to the outer surface of the lead screw 15.

[0042] Specifically, the threaded block is slidably connected to the inner wall of the movable groove 14, and the outer surface of the lead screw 15 is provided with two kinds of threads, so that when the handle 16 is rotated, the lead screw 15 is rotated as a whole, the two threaded blocks slide on the inner wall of the movable groove 14, so that the two limiting plates 3 are relatively slid to abut against and clamp the inner wall of the rectangular corrugated pipe.

[0043] Specifically, when the rectangular corrugated pipe is fixed, the handle 16 is screwed to rotate the lead screw 15, so that the two limiting plates 3 are relatively moved to clamp the inner wall of the rectangular corrugated pipe, so that the limiting plate 3 is prevented from sliding between the inner wall of the rectangular corrugated pipe, and thus the rectangular corrugated pipe is prevented from sliding and falling off during hoisting, and then the frame 1 is hoisted to transport the rectangular corrugated pipe as a whole.

[0044] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A rectangular bellows counterbalance hoist comprising a frame, characterized in that, A plurality of L-shaped plates are slidably connected to the frame, each of the L-shaped plates is provided with a plurality of limiting plates, and each of the limiting plates abuts the inner wall of the corrugated pipe.

2. A rectangular bellows counterbalance hoist as defined in claim 1, wherein, A plurality of sliding grooves are formed in the frame, and each of the sliding grooves is in one-to-one correspondence with each of the L-shaped plates.

3. A rectangular bellows equalizing hoist as defined in claim 2, wherein A fixing bolt is mounted on the L-shaped plate, the fixing bolt penetrates the sliding groove and extends to the outside of the sliding groove, one end of the fixing bolt extending to the outside of the sliding groove is threadedly connected with a nut, and the nut abuts the frame.

4. A rectangular bellows equalizing hoist as defined in claim 3, wherein A rubber pad is provided on the limiting plate, and two rib plates are fixedly connected to opposite sides of the L-shaped plate, and the rib plates are used to support the L-shaped plate.

5. A rectangular bellows counterbalance hoist as defined in claim 4 wherein, The fixing bolt is slidably connected to the inside of the sliding groove, and the top of the frame is provided with a plurality of fixing ears.

6. A rectangular bellows counterbalance hoist as defined in claim 1 wherein, A connecting plate is connected to the frame, a rotating rod is rotatably connected to the connecting plate, and a plurality of grooves are formed in the end of the rotating rod.

7. A rectangular bellows counterbalance hoist as defined in claim 6 wherein, A traction rope is connected in each of the grooves, one end of the traction rope is connected with the L-shaped plate, one side of the inside of the sliding groove is connected with a return spring, and one end of the return spring abuts the fixing bolt.

8. A rectangular bellows counterbalance hoist as defined in claim 7, wherein, The number of the grooves is preferably four, and the four grooves are annularly distributed on the outer surface of the rotating rod; the rotating rod penetrates the connecting plate and extends to the top of the connecting plate, and one end of the rotating rod extending to the top of the connecting plate is provided with a rotating part.

9. A rectangular bellows counterbalance hoist as defined in claim 1 wherein, An activity groove is formed in the inside of the L-shaped plate, a lead screw is rotatably connected in the inside of the activity groove, one end of the lead screw penetrates the activity groove and extends to the outside of the activity groove, and one end of the lead screw extending to the outside of the activity groove is connected with a handle.

10. A rectangular bellows counterbalance hoist as defined in claim 9, wherein, The limiting plate is threadedly connected to the outer surface of the lead screw through a threaded block.

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