Downhole oil drum lifter

Abstract

The present application relates to an underground oil loading and unloading tool for mines, and in particular to an underground oil barrel lifter; it includes a fall chain, a handle, a main beam, a claw and a tightening bolt; the upper middle part of the main beam is fixedly connected to the handle, and the handle is connected to the load-bearing end of the fall chain; a drooping claw is fixedly connected to each of the two ends of the main beam; a load-bearing plate is fixedly connected to the bottom of the claw, and a positioning plate is movably connected to the bottom of the claw; the external load-bearing plate and the internal positioning plate are arranged at intervals. Due to the implementation of the above technical scheme, the present application adjusts the spacing between the two claws through the longitudinal rectangular hole and makes the two just tightly buckle the upper and lower edges of the oil barrel, screws in the tightening bolt, and the tightening bolt is tightly pressed against the surface of the oil barrel and stuck on the lower side of the upper and lower edges; the oil barrel is suspended on the load-bearing end of the fall chain; by pulling the manual end of the fall chain by the worker, the oil barrel connected to the load-bearing end of the fall chain can be easily pulled up. The present application has a simple structure, and the entire operation process can be easily completed by one person, saving time and effort, and reducing the labor intensity of workers.

Description

Technical Field

[0001] The present application relates to an underground oil loading and unloading tool for mines, and in particular to an underground oil drum lifter. Background Art

[0002] With the continuous improvement of the mechanization of underground production equipment in mines, the use of various types of oil is becoming more and more common. In the process of underground oil transportation, due to the limited working space, it can only be loaded and unloaded manually, which invisibly increases the labor intensity of workers. In addition, due to factors such as uneven underground roads and limited light intensity, there are certain safety hazards in the transportation process.

[0003] At present, the claws can be fixed on both sides of the crossbeam underground. The bottom of the claws controls the screwing of the bolts through the bolt holes, and the bolt heads are clamped on the upper and lower edges of the oil drum to achieve the purpose of lifting the oil drum. However, when lifting the oil drum, the bolts and bolt holes are deformed under the force, and the bolts cannot retreat or move forward; the lifter can only be scrapped. Summary of the invention

[0004] The purpose of this application is to propose an underground oil drum lifter that can be operated by one person, saves time and effort, reduces the labor intensity of workers, is durable, and is not easy to damage.

[0005] The present application is implemented as follows: an underground oil drum lifter, which includes a fall chain, a handle, a main beam, a claw and a tightening bolt; the upper middle portion of the main beam is fixedly connected to the handle, and the handle is connected to the load-bearing end of the fall chain; a drooping claw is fixedly connected to each end of the main beam; a load-bearing plate is fixedly connected to the bottom of the claw, and a positioning plate is movably connected to the bottom of the claw; the external load-bearing plate and the internal positioning plate are arranged at intervals; a load-bearing hole whose axial direction is consistent with the length direction of the main beam is provided on the load-bearing plate, and a threaded positioning hole whose axis is consistent with the axis of the load-bearing hole and whose diameter is smaller than the diameter of the load-bearing hole is provided on the positioning plate; the tightening bolt includes a positioning thread, a load-bearing shaft and a limit platform fixedly connected in sequence from front to back; the load-bearing shaft matches and passes through the load-bearing hole, and the positioning thread matches and passes through the threaded positioning hole.

[0006] Furthermore, the bottom of the claw is located on the inner side of the load-bearing plate and is fixed with two spaced connecting plates. The upper part of the positioning plate is matched and clamped between the bottoms of the two connecting plates. The connecting bolts pass through the connecting plate, the positioning plate, and the connecting plate on one side in sequence and are fixedly connected with the connecting nuts.

[0007] Furthermore, there is a gap between the positioning plate and the connecting plates on both sides; the spacing between the two connecting plates is 0.2 cm to 1 cm longer than the width of the positioning plate.

[0008] Furthermore, the hole on the positioning plate for passing the connecting bolt is a long hole along the vertical direction; the number of the connecting bolts is one or two.

[0009] Furthermore, longitudinal rectangular holes are provided at both ends of the main beam; the claw includes a suspension support block and a rectangular column fixed together in sequence from top to bottom; the suspension support block capable of bearing the weight of the oil drum is tightly seated on the upper end surface of the main beam, the suspension support block is in the shape of a long strip and the length direction of the suspension support block is consistent with the length direction of the main beam; the rectangular column is non-rotatably matched and passes through the longitudinal rectangular hole; a load-bearing plate and two connecting plates located on the inner side of the load-bearing plate are fixedly connected to the bottom of the rectangular column, and the load-bearing plate and the two connecting plates are distributed at intervals; the rectangular column is fixed at the center of the bottom of the suspension support block or at the side of the bottom of the suspension support block close to the center of the main beam.

[0010] Furthermore, a plurality of longitudinal rectangular holes are respectively provided at both ends of the main beam, and the plurality of longitudinal rectangular holes at each end are arranged at intervals along the length direction of the main beam; and a claw is respectively connected at both ends of the main beam, the upper part of which can be fixed above the main beam and the lower part of which can match the anti-rotation and penetrate into the longitudinal rectangular hole.

[0011] Furthermore, the claws at both ends of the main beam are symmetrically distributed along the center line of the main beam.

[0012] Furthermore, a positioning groove is provided on the upper end surface of the main beam corresponding to each longitudinal rectangular hole; the suspension support block is matched and embedded in the positioning groove, and the lower end surface of the suspension support block is tightly fitted with the bottom surface of the positioning groove.

[0013] Due to the implementation of the above technical solution, the present application adjusts the distance between the two claws through the longitudinal rectangular hole and makes the two just tightly clasp the upper and lower edges of the oil drum, screws in the tightening bolts, and the tightening bolts are tightly pressed against the surface of the oil drum and stuck on the lower sides of the upper and lower edges; the oil drum is hung on the load-bearing end of the fall chain; by the worker pulling the manual end of the fall chain, the oil drum connected to the load-bearing end of the fall chain can be easily pulled up. The present application has a simple structure, and the entire operation process can be easily completed by one person, saving time and effort, and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The specific structure of this application is given by the following drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of the best embodiment of the present application;

[0016] Figure 2 yes Figure 1 A schematic diagram of the local enlarged structure at position I in the middle;

[0017] Figure 3 yes Figure 2 A schematic diagram of the side structure of the middle positioning plate;

[0018] Figure 4 yes Figure 2 A schematic diagram of the side structure of the middle positioning plate;

[0019] Figure 5 yes Figure 1Schematic diagram of the structure of the central main beam from a top view.

[0020] Legend: 1. Falling chain, 2. Handle, 3. Main beam, 4. Load-bearing plate, 5. Positioning plate, 6. Threaded positioning hole, 7. Connecting bolt, 8. Connecting nut, 9. Suspension support block, 10. Rectangular column, 11. Longitudinal rectangular hole, 12. Positioning groove, 13. Oil drum, 14. Long hole, 15. Limiting platform, 16. Load-bearing shaft, 17. Positioning thread. DETAILED DESCRIPTION

[0021] The present application is not limited by the following embodiments, and the specific implementation method can be determined according to the technical solution of the present application and actual conditions.

[0022] Examples, such as Figures 1 to 5 As shown, the downhole oil drum lifter includes a fall chain 1, a handle 2, a main beam 3, a claw and a tightening bolt; the upper middle part of the main beam 3 is fixedly connected to the handle 2, and the handle 2 is connected to the load-bearing end of the fall chain 1; a drooping claw is fixedly connected to each of the two ends of the main beam 3; a load-bearing plate 4 is fixedly connected to the bottom of the claw, and a positioning plate 5 is movably connected to the bottom of the claw; the external load-bearing plate 4 and the internal positioning plate 5 are arranged at intervals; the load-bearing plate 4 is provided with a load-bearing hole whose axial direction is consistent with the length direction of the main beam 3, and the positioning plate 5 is provided with a threaded positioning hole 6 whose axis is consistent with the axis of the load-bearing hole and whose diameter is smaller than the diameter of the load-bearing hole; the tightening bolt includes a positioning thread 17, a load-bearing shaft 16 and a limit platform 15 fixedly connected in sequence from front to back; the load-bearing shaft 16 is matched to pass through the load-bearing hole, and the positioning thread 17 is matched to pass through the threaded positioning hole 6.

[0023] The chain hoist, also known as the hand chain hoist, is a manual lifting tool that is easy to use and carry. It uses the principle of the wheel and axle to save effort. It is particularly suitable for installation operations in factories, mines, construction sites, docks, ships, warehouses, etc. It is even more important for outdoor and non-electrical operations. It includes a load-bearing chain end and a manual chain end.

[0024] Before use, anchor holes are drilled above the oil loading and unloading area for hanging and installing the fall chain 1.

[0025] When working, first lay the oil drum 13 to be loaded and unloaded flat; then loosen and remove the tightening bolts, so that the claws on both sides of the main beam 3 go deep into the center of the oil drum 13 along the upper and lower edges of the oil drum 13; tighten the bolts, so that the positioning threads 17 match and pass through the threaded positioning holes 6 and then press tightly against the upper and lower surfaces of the oil drum 13, and the load-bearing shaft 16 and the load-bearing holes are tightly matched, so that the tightening bolts on both sides are respectively stuck on the inner sides of the upper and lower edges of the oil drum 13.

[0026] After the above work is completed, the worker pulls the manual end of the fall chain 1, and the load-bearing end of the fall chain 1 is transmitted through the handle 2 and the main beam 3, and then the oil barrel 13 is slowly lifted or lowered through the cooperation of the tightening bolts and the claws; when the oil barrel 13 is moved to the designated position, the tightening bolts are removed, the claws are taken out, and the whole work is completed.

[0027] In the process of lifting the oil barrel 13, after the tightening bolts bear the force, since the positioning plate 5 can make a small displacement in the vertical plane, the cooperation between the positioning thread 17 and the threaded positioning hole 6 will not bear the bending moment generated by the gravity of the oil barrel 13, but the bending moment is borne by the cooperation between the bearing hole and the bearing shaft 16. This not only improves the stability of lifting, but more importantly, protects the thread cooperation and increases the service life of the equipment.

[0028] The present invention has a simple structure, low production cost, and is easy to operate. It can be completed by one person, replacing the previous handling process of four to six people, reducing labor intensity, and eliminating the potential safety hazard of accidental fall of the oil barrel 13 during the worker's handling process.

[0029] like Figure 1 , 2 As shown, the bottom of the claw is located on the inner side of the load-bearing plate 4 and is fixed with two spaced connecting plates. The upper part of the positioning plate 5 is matched and clamped between the bottoms of the two connecting plates. The connecting bolt 7 passes through the connecting plate on one side, the positioning plate 5, and the connecting plate on the other side in sequence and is fixedly connected with the connecting nut 8.

[0030] like Figure 1 , 2 As shown, there is a gap between the positioning plate 5 and the connecting plates on both sides; the spacing between the two connecting plates is 0.2 cm to 1 cm longer than the width of the positioning plate 5. In this way, the positioning plate 5 can still have swing space under the clamping condition of the two connecting plates. When the oil barrel 13 is lifted, the position of the positioning thread 17 and the threaded positioning hole 6 can be automatically adjusted to completely transfer the weight of the oil barrel 13 to the cooperation between the bearing hole and the bearing shaft 16. The spacing should not be too large to avoid excessive shaking of the positioning thread 17 and reduce the stability of lifting the oil barrel 13.

[0031] like Figures 1 to 4 As shown, the hole on the positioning plate 5 for passing the connecting bolt 7 is a long hole 14 along the vertical direction; the number of the connecting bolts 7 is one or two. In this way, the relative position of the positioning plate 5 and the connecting plate can be adjusted in the vertical direction; with the setting of a gap between the positioning plate 5 and the connecting plates on both sides, the position of the positioning thread 17 and the threaded positioning hole 6 can be automatically adjusted in multiple directions; the service life of the positioning thread 17 and the threaded positioning hole 6 is improved.

[0032] like Figures 1 to 5As shown, longitudinal rectangular holes 11 are provided at both ends of the main beam 3; the claw includes a suspension support block 9 and a rectangular column 10 fixed together in sequence from top to bottom; the suspension support block 9 capable of bearing the weight of the oil drum 13 is tightly seated on the upper end surface of the main beam 3, the suspension support block 9 is in the shape of an elongated strip and the length direction of the suspension support block 9 is consistent with the length direction of the main beam 3; the rectangular column 10 is non-rotatably matched to pass through the longitudinal rectangular hole 11; the bottom of the rectangular column 10 is fixedly connected to a load-bearing plate 4 and two connecting plates located on the inner side of the load-bearing plate 4, and the load-bearing plate 4 and the two connecting plates are spaced apart; the rectangular column 10 is fixed at the center of the bottom of the suspension support block 9 or at the side of the bottom of the suspension support block 9 close to the center of the main beam 3.

[0033] The rectangular column 10 is inserted into the longitudinal rectangular hole 11 to effectively prevent the claw head below from rotating, thereby improving the stability of the claw head and the tightening bolts holding the oil drum 13. The axial direction of the threaded through hole is consistent with the length direction of the main beam 3. When the oil drum 13 is pulled, the force points on both sides are located at the center of the oil drum 13, and the pulling is more stable.

[0034] like Figure 5 As shown, a plurality of longitudinal rectangular holes 11 are respectively provided at both ends of the main beam 3, and the plurality of longitudinal rectangular holes 11 at each end are arranged at intervals along the length direction of the main beam 3; and a claw is respectively connected at both ends of the main beam 3, the upper part of which can be fixed above the main beam 3 and the lower part of which can match the anti-rotation and penetrate into the longitudinal rectangular hole 11.

[0035] In this way, the installation positions of the two claws can be adjusted according to the height of the oil barrel 13 (i.e., the distance between the upper and lower edges of the oil barrel 13) through the longitudinal rectangular hole 11, ensuring that the two claws just tightly grasp the upper and lower edges of the oil barrel 13; tighten the tightening bolts, and the tightening bolts on both sides are respectively pressed against the upper and lower bottom surfaces of the oil barrel 13 and respectively clamped on the inner sides of the upper and lower edges of the oil barrel 13. By adjusting the position of the claws, the present application is applicable to various types of oil barrels 13, increasing the scope of application of the present application.

[0036] like Figure 1 , 2 As shown, the claws at both ends of the main beam 3 are symmetrically distributed along the center line of the main beam 3. When pulling like this, the main beam 3 is balanced in force and the oil drum 13 will not tilt.

[0037] like Figure 5 As shown, a positioning groove 12 is provided at the upper end surface of the main beam 3 corresponding to each longitudinal rectangular hole 11; the suspension support block 9 is matched and embedded in the positioning groove 12, and the lower end surface of the suspension support block 9 is tightly fitted with the bottom surface of the positioning groove 12. When lifting the oil drum 13, the force generated by the bottom surface of the positioning groove 12 on the lower end surface of the suspension support block 9 is mainly relied on; the suspension support block 9 is tightly matched with the positioning groove 12, and the claw is not easy to shake when lifting the oil drum 13, and the lifting process is more stable.

[0038] The above technical features constitute the best implementation example of the present application, which has strong adaptability and best implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the needs of different situations.

Claims

1. A downhole oil drum lifter, characterized in that: It includes a fall chain, a handle, a main beam, a claw and a tightening bolt; the upper middle part of the main beam is fixedly connected to the handle, and the handle is connected to the load-bearing end of the fall chain; a drooping claw is fixedly connected to each end of the main beam; a load-bearing plate is fixedly connected to the bottom of the claw, and a positioning plate is movably connected to the bottom of the claw; the external load-bearing plate and the internal positioning plate are arranged at intervals; a load-bearing hole is provided on the load-bearing plate, and a threaded positioning hole whose axis is consistent with the length direction of the main beam, and whose diameter is smaller than the diameter of the load-bearing hole is provided on the positioning plate; the tightening bolt includes a positioning thread, a load-bearing shaft and a limit platform fixedly connected in sequence from front to back; the load-bearing shaft passes through the load-bearing hole, and the positioning thread passes through the threaded positioning hole; The bottom of the claw is located inside the bearing plate and is fixed with two spaced connecting plates. The upper part of the positioning plate is matched and clamped between the bottoms of the two connecting plates. The connecting bolts pass through the connecting plate on one side, the positioning plate, and the connecting plate on the other side in sequence and are fixedly connected with the connecting nuts. There is a gap between the positioning plate and the connecting plates on both sides; the distance between the two connecting plates is 0.2 cm to 1 cm longer than the width of the positioning plate; The hole on the positioning plate for passing the connecting bolt is a long hole along the vertical direction; the number of the connecting bolt is one or two.

2. The downhole oil drum lifter according to claim 1, characterized in that: Both ends of the main beam are provided with longitudinal rectangular holes; the claw includes a suspension support block and a rectangular column fixed together in sequence from top to bottom; the suspension support block capable of bearing the weight of the oil drum is tightly seated on the upper end surface of the main beam, the suspension support block is in the shape of a long strip and the length direction of the suspension support block is consistent with the length direction of the main beam; the rectangular column is non-rotatably matched and passes through the longitudinal rectangular hole; a load-bearing plate and two connecting plates located on the inner side of the load-bearing plate are fixedly connected to the bottom of the rectangular column, and the load-bearing plate and the two connecting plates are distributed at intervals; the rectangular column is fixed at the center of the bottom of the suspension support block or on the side of the bottom of the suspension support block close to the center of the main beam.

3. The downhole oil drum lifter according to claim 2, characterized in that: Both ends of the main beam are provided with a plurality of longitudinal rectangular holes, and the plurality of longitudinal rectangular holes at each end are arranged at intervals along the length direction of the main beam; the two ends of the main beam are respectively connected with a claw, the upper part of which can be fixed above the main beam and the lower part of which can be matched with anti-rotation and penetrate into the longitudinal rectangular hole.

4. The downhole oil drum lifter according to claim 1, characterized in that: The claws at both ends of the main beam are symmetrically distributed along the center line of the main beam.

5. The downhole oil drum lifter according to claim 2, characterized in that: A positioning groove is provided at the upper end surface of the main beam corresponding to each longitudinal rectangular hole; the suspension support block is matched and embedded in the positioning groove, and the lower end surface of the suspension support block is tightly fitted with the bottom surface of the positioning groove.

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