Lifting appliance and full-section turnover box culvert crane thereof

Abstract

The utility model relates to a lifting appliance and a full-section turnover box culvert crane thereof, the lifting appliance is used for lifting and assembling box culvert pieces, the lifting appliance comprises a lifting appliance body, the lifting appliance body comprises a support, an electric push rod and a plug pin, the electric push rod and the plug pin are arranged on the support, the electric push rod is connected with the plug pin, and the support is provided with a vertically downward avoiding opening. A first pin hole and a second pin hole are coaxially formed in the positions, on the two sides of the receding opening, of the support respectively. The electric push rod drives the plug pin to sequentially penetrate through the first pin hole, a hoisting hole of the box culvert piece and the second pin hole so as to lock the box culvert piece. The upper trolley comprises a plurality of lifting mechanisms, and the output ends of the lifting mechanisms are connected with the lifting tool body and used for independently lifting the lifting tool body; according to the lifting appliance, the problem that the steel wire rope of the lifting appliance body interferes with the box culvert piece is solved, the box culvert pieces with different widths and thicknesses can be lifted and spliced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane lifting, in particular to a spreader and a full-section turnover culvert crane thereof. Background Art

[0002] Full-section culvert pieces with a relatively low height can be transported into the tunnel in a form standing on a transport vehicle, and then a culvert crane and a C-shaped spreader body are used to realize the lifting and assembly of the culvert pieces. Some full-section culvert pieces have a relatively large height, while the height of the culvert crane is limited. If they are transported into the tunnel in a form standing on a transport vehicle, the culvert pieces will directly interfere with the structure of the culvert crane. Therefore, only a lying flat scheme (i.e., the culvert is vertically upward) can be adopted for transportation, and the C-shaped spreader for the culvert pieces transported in a lying flat manner cannot lift normally.

[0003] Ordinary non-full-section culvert pieces can design two lifting points at the lower part in front of the spreader (i.e., on both sides in the width direction of the culvert piece), and pull forward when assembling the culvert to make the lower part of the culvert piece fit with the lower part of the previously assembled culvert piece. The installation of full-section culverts with too large a width is slightly different. If the scheme of pulling forward the two lifting points at the lower part of the spreader is adopted, the steel wire rope of the spreader body has already interfered with the culvert body. Therefore, the conventional design can no longer meet the use requirements. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the steel wire rope of the spreader body interferes with the full-section culvert pieces with a relatively large width during lifting and splicing in the prior art, and further provide a spreader and a full-section turnover culvert crane thereof, which not only solve the problem of interference between the steel wire rope of the spreader body and the culvert pieces, but also can lift and splice culvert pieces with different widths and thicknesses, improving the work efficiency.

[0005] To solve the above technical problem, the utility model provides a spreader for lifting and assembling culvert pieces, including

[0006] A spreader body, which includes a bracket, an electric push rod and a bolt arranged on the bracket. The electric push rod is connected to the bolt. The bracket is provided with an avoidance opening, and the bracket is coaxially provided with a first pin hole and a second pin hole on both sides of the avoidance opening. The electric push rod drives the bolt to sequentially pass through the first pin hole, the lifting hole of the culvert piece and the second pin hole to lock the culvert piece;

[0007] An upper trolley, which includes a plurality of lifting mechanisms, and the output ends of the plurality of lifting mechanisms are all connected to the spreader body to separately lift the spreader body.

[0008] In an embodiment of the present utility model, it further includes an angle detection device, which includes a swing rod, a first induction switch, and a second induction switch arranged on the spreader body. The swing rod is rotatably connected to the spreader body, and the swing rod switches between a vertical state and a horizontal state by its own weight. When the swing rod is in the vertical state, the swing rod triggers the first induction switch; when the swing rod is in the horizontal state, the swing rod triggers the second induction switch.

[0009] In an embodiment of the present utility model, it further includes a trolley that can move in a first direction and a second direction, and a plurality of the lifting mechanisms are arranged in an array on the trolley.

[0010] In an embodiment of the present utility model, it further includes a transverse movement mechanism arranged on the trolley. The transverse movement mechanism includes a telescopic rod and a cylinder for driving the telescopic rod to expand and contract, and is used to drive the upper trolley to move in the first direction and the second direction.

[0011] In an embodiment of the present utility model, the bracket is provided with a plurality of the avoidance openings, and the plurality of avoidance openings are arranged in an array.

[0012] In an embodiment of the present utility model, it further includes a bracket connecting the bracket, and the bracket supports the pin so that the end of the pin is always located in the first pin hole.

[0013] In an embodiment of the present utility model, it further includes a positioning cone arranged on the bracket. The positioning cone is arranged vertically downward and is arranged opposite to the conical hole of the culvert box for inserting into the conical hole.

[0014] In an embodiment of the present utility model, it further includes a position detection device arranged on the bracket. The position detection device is electrically connected to the electric push rod, and the position detection device is configured to contact the surface of the culvert box and trigger the electric push rod to extend after the positioning cone is inserted into the conical hole.

[0015] In an embodiment of the present utility model, it further includes a detection device and an indicator light arranged on the bracket. The detection device and the indicator light are electrically connected, and the detection device is used to check the position of the pin and control the indicator light to emit different colors.

[0016] To solve the above problems, a full-section turning culvert crane is further provided, which includes a spreader of any one of the above.

[0017] The above technical solutions of the present utility model have the following beneficial effects compared with the prior art:

[0018] A sling described in the present utility model has an avoidance opening, an electric push rod, and a pin disposed on both sides corresponding to the length direction of the culvert component. This changes the practice of setting the lifting points of the original sling on both sides in the width direction of the culvert component, avoiding the problem of interference between the original relatively wide culvert component and the culvert sling. Through the coordinated cooperation of multiple lifting mechanisms, the culvert component is smoothly turned from a lying state to an upright state, solving the problem that it is difficult to transport large-height full-section culvert components into the tunnel. After the lifting hole of the culvert component is aligned with the pin, the electric push rod is used to push the pin into the lifting hole of the culvert component, not only realizing the firm connection between the culvert component and the sling, but also achieving efficient and automated connection and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in combination with the drawings, where

[0020] Figure 1 is a structural schematic diagram of a sling when the sling body is in a horizontal state in a preferred embodiment of the present utility model;

[0021] Figure 2 is a structural schematic diagram of a sling when the sling body is in a vertical state in a preferred embodiment of the present utility model;

[0022] Figure 3 is Figure 1 a structural schematic diagram of a top view of a sling shown;

[0023] Figure 4 is Figure 1 a structural schematic diagram of a top view of the sling body of a sling shown;

[0024] Figure 5 is Figure 4 a structural schematic diagram of another structure of the sling body shown;

[0025] Figure 6 is Figure 5 a partial structural schematic diagram of the sling body and shown;

[0026] Figure 7 is a structural schematic diagram of a bracket in a horizontal state in a preferred embodiment of the present utility model.

[0027] Figure 8 is Figure 7 a structural schematic diagram of the bracket shown in a vertical state.

[0028] Description of the reference numerals in the drawings: 1. Lifting mechanism; 11. Steel wire rope; 12. Movable pulley; 2. Bracket; 21. Electric push rod; 22. Bracket; 23. Bolt; 24. First pin hole; 25. Second pin hole; 26. Avoidance opening; 3. Gantry; 4. Culvert piece; 5. Transverse movement mechanism; 6. Swing rod; 61. First induction switch; 62. Second induction switch; 7. Positioning cone; 8. Position detection device; X. First direction; Y. Second direction. Specific embodiments

[0029] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.

[0030] Embodiment 1

[0031] Refer to Figure 1 、 2 As shown in, and 6, in an embodiment of the present utility model, a spreader is disclosed, which is used for lifting and assembling the culvert piece 4. Two lifting holes are respectively provided on the upper and lower parts of the culvert piece 4, and the spreader passes through the lifting holes to lift the culvert piece 4. There is also a positioning cone hole for positioning on the side of the culvert piece 4. The spreader includes

[0032] The spreader body, which includes a bracket 2, and an electric push rod 21 and a bolt 23 provided on the bracket 2. The output end of the electric push rod 21 is connected to the bolt 23. The bracket 2 is provided with an avoidance opening 26 corresponding to the lifting hole of the culvert piece 4. The avoidance opening 26 is vertically downward and has a "U" - shaped structure. The bracket 2 is coaxially provided with a first pin hole 24 and a second pin hole 25 on both sides of the avoidance opening 26 respectively. The bolt 23, the first pin hole 24 and the second pin hole 25 are all coaxially arranged. Before lifting, the spreader body descends so that the lifting hole of the culvert piece 4 is accommodated in the avoidance opening 26, and then the electric push rod 21 drives the bolt 23 to sequentially pass through the first pin hole 24, the lifting hole of the culvert piece 4 and the second pin hole 25 to lock the culvert piece 4;

[0033] The upper trolley, which is arranged above the spreader body and can move along the first direction X. In other embodiments, the upper trolley can also move along the second direction Y. The upper trolley includes four independent lifting mechanisms 1. The output ends of the four lifting mechanisms 1 are respectively connected to four different connection points of the spreader body, and are used to separately lift the spreader body and adjust the posture of the culvert piece 4. Further, the lifting mechanism 1 is preferably a winch, specifically including a motor, a drum, a steel wire rope 11 and a movable pulley 12. Among them, the movable pulley 12 is connected to the bracket 2, and the motor drives the movable pulley 12 and the bracket 2 to lift by winding and unwinding the steel wire rope 11;

[0034] Refer toFigure 7 and 8 As shown, it further includes an angle detection device, which includes a swing rod 6, a first induction switch 61, and a second induction switch 62 arranged on the spreader body. One end of the swing rod 6 is rotatably connected to the spreader body, and the free end is free to move. When the bracket 2 flips between the horizontal state and the vertical state, the swing rod 6 switches between the vertical state and the horizontal state by its own weight. Specifically, when the swing rod 6 is in the vertical state, the free end of the swing rod 6 triggers the first induction switch 61 to remind the operator that the culvert piece 4 is in the final installation posture, that is, the erected state at this time; when the swing rod 6 is in the horizontal state, the swing rod 6 triggers the second induction switch 62 to remind the operator that the spreader body has returned to the horizontal state at this time; further, the swing rod 6, the first induction switch 61, and the second induction switch 62 are connected to the bracket 2.

[0035] Refer to Figure 1 As shown, it further includes a trolley 3 that can move along the first direction X and the second direction Y. The upper trolley is arranged on the trolley 3. The trolley 3 is used to adjust and change the positions of the upper trolley and the spreader body in the tunnel; the upper trolley can move on the trolley 3. The trolley 3 is provided with a guide rail for the upper trolley to slide smoothly. Among them, the first direction X is the length direction of the tunnel, and the second direction Y is the width direction of the tunnel.

[0036] Refer to Figure 3 As shown, the four lifting mechanisms 1 are arranged in an array on the bracket 2 and are used to lift the four connection points of the spreader body respectively. The connection points are lifted to different heights by the four lifting mechanisms 1 to achieve the three states of the spreader body: horizontal, inclined, and vertical.

[0037] Refer to Figure 5 As shown, in order to ensure the parallelism of the culvert piece, the bracket 2 is provided with four avoidance openings 26. The four avoidance openings 26 are arranged in an array to correspond to the four lifting holes of the culvert piece 4. Each avoidance opening 26 is equipped with an electric push rod and a bolt.

[0038] Refer to Figure 5 As shown, it further includes a transverse movement mechanism 5 arranged on the trolley 3. The transverse movement mechanism 5 includes a telescopic rod and a translation cylinder for driving the telescopic rod to expand and contract. Specifically, the output end of the telescopic rod is fixedly connected to the upper trolley, and the translation cylinder is fixed on the trolley 3 and is used to drive the four lifting mechanisms 1 along the first direction X to facilitate the pose adjustment during the assembly of the culvert piece 4; in other embodiments, the transverse movement mechanism 5 can also drive the four lifting mechanisms 1 to move in the second direction Y.

[0039] Refer to Figure 6As shown in the figure, it further includes a bracket 22 connected to the bracket 2. The bracket 22 is in a shape-following match with the shape of the bolt 23. The bracket 22 supports the bolt 23 so that the end of the bolt 23 is always located in the first pin hole 24, preventing the bolt 23 from being completely pulled out of the first pin hole 24 and causing an obstruction to the next extension.

[0040] Referring to Figure 5 As shown in the figure, it further includes a positioning cone 7 provided on the bracket 2. The positioning cone 7 is arranged vertically downward and is arranged opposite to the conical hole of the culvert piece 4 for inserting into the conical hole to mechanically limit the culvert piece 4.

[0041] Referring to Figure 4 As shown in the figure, it further includes two position detection devices 8 provided on the bracket 2. The position detection devices 8 are electrically connected to the electric push rod 21. The position detection devices 8 are configured to contact the surface of the culvert piece 4 and trigger the electric push rod 21 after the positioning cone 7 is inserted into the conical hole, so that the electric push rod 21 can push and retract the bolt 23 according to this signal.

[0042] It further includes a detection device and an indicator light provided on the bracket 2. The detection device and the indicator light are electrically connected. The detection device is used to check the position of the bolt 23. By detecting the position of the bolt 23, it is judged whether the bolt 23 is completely inserted into the second pin hole 25. When the bolt 23 is completely inserted into the second pin hole 25, the detection device controls the indicator light to emit green, prompting the operator that the culvert piece 4 has been locked. Otherwise, it emits red, prompting the operator that the culvert piece 4 has not been successfully locked.

[0043] Embodiment 2

[0044] To solve the above problems, there is also a full-section turning culvert crane, which includes a lifting tool as described in any one of the above.

[0045] The working principle of the lifting tool and the full-section turning culvert crane according to the present invention is:

[0046] For the culvert box 4 with a relatively large width, after being transported into the tunnel in a lying posture, the transverse movement mechanism 5 adjusts the position of the upper trolley so that the hoist body is located above the culvert box 4. Then, the four lifting mechanisms 1 lower the four hoist bodies. After the hoist bodies are in place, the four electric push rods 21 drive the bolts 23 to extend and pass through the upper and lower lifting holes of the culvert box 4 respectively to complete the locking of the culvert box 4. Then, the lifting mechanism 1 lifts the culvert box 4, and the crane rotates the culvert box 4 by 90 degrees for the first time and pulls the culvert box 4 forward to completely pass through the left and right legs of the crane. Then, the culvert box 4 is rotated by 90 degrees for the second time. Then, the two lifting mechanisms 1 on one side of the culvert box 4 along the first direction X start to slowly lower the culvert box 4, and the two lifting mechanisms 1 on the other side remain stationary. The culvert box 4 slowly changes from a lying state to an upright state. Then, the transverse movement mechanism 5 pushes the upper trolley forward to make the culvert box 4 fit with the lower part of the previously assembled culvert box 4 to complete the assembly. After the assembly is completed, the bolt 23 retracts and the hoist body rises.

[0047] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.

Claims

1. A sling, characterized in that, It is used for hoisting and assembling culvert components, including a hoisting tool body, which includes a bracket, an electric push rod and a bolt arranged on the bracket. The electric push rod is connected to the bolt. The bracket is provided with a vertically downward avoiding opening. On both sides of the avoiding opening, the bracket is coaxially provided with a first pin hole and a second pin hole respectively. The electric push rod drives the bolt to sequentially pass through the first pin hole, the hoisting hole of the culvert component and the second pin hole to lock the culvert component; an upper trolley, which includes a plurality of lifting mechanisms. The output ends of the plurality of lifting mechanisms are all connected to the hoisting tool body for independently lifting the hoisting tool body.

2. The spreader according to claim 1, wherein It further includes an angle detection device, which includes a swing rod, a first induction switch and a second induction switch arranged on the hoisting tool body. The swing rod is rotatably connected to the hoisting tool body. The swing rod switches between a vertical state and a horizontal state by its own weight. When the swing rod is in the vertical state, the swing rod triggers the first induction switch; when the swing rod is in the horizontal state, the swing rod triggers the second induction switch.

3. A lifting tool according to claim 1, characterized in that, It further includes a trolley that can move in a first direction and a second direction. The plurality of lifting mechanisms are arranged in an array on the trolley.

4. A sling according to claim 3, characterized in that, It further includes a transverse movement mechanism arranged on the trolley. The transverse movement mechanism includes a telescopic rod and a cylinder for driving the telescopic rod to expand and contract, and is used to drive the upper trolley to move in the first direction and the second direction.

5. A sling according to claim 1, characterized in that, The bracket is provided with a plurality of the avoiding openings, and the plurality of avoiding openings are arranged in an array.

6. A spreader according to claim 1, characterized in that, It further includes a bracket connecting the bracket. The bracket supports the bolt so that the end of the bolt is always located in the first pin hole.

7. A lifting device according to claim 1, characterized in that It further includes a positioning cone arranged on the bracket. The positioning cone is arranged vertically downward and is arranged opposite to the conical hole of the culvert component for inserting into the conical hole.

8. A sling according to claim 7, characterized in that, It further includes a position detection device arranged on the bracket. The position detection device is electrically connected to the electric push rod. The position detection device is configured to trigger the electric push rod to extend when the positioning cone contacts the surface of the culvert component after being inserted into the conical hole.

9. A lifting tool according to claim 1, wherein It further includes a detection device and an indicator light arranged on the bracket. The detection device and the indicator light are electrically connected. The detection device is used to check the position of the bolt and control the indicator light to emit different colors.

10. A full-section turnover box culvert crane, characterized in that, It includes a hoisting tool as described in any one of claims 1 to 9.

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