Inner wall oiling device for steel pipe of pipe-sinking cast-in-place pile

Abstract

The utility model relates to the technical field of engineering construction, in particular to an oil coating device for the inner wall of a steel pipe of an immersed tube cast-in-place pile, which comprises two fixed blocks, a moving block is slidably connected between the fixed blocks through a sliding assembly, a rotating assembly is arranged on the moving block, an oil coating assembly is arranged on the rotating assembly, and the rotating assembly comprises a mounting ring sleeving the moving block. Through cooperative arrangement of the mounting ring, the annular electric sliding rail, the electric sliding block and other structures, during use, the oil coating assembly is attached to the inner wall of a steel pipe, then the sliding assembly is started to drive the moving block to move in the steel pipe, meanwhile, the annular electric sliding rail is started, and the oil coating assembly is started to drive the moving block to move in the steel pipe. And the two electric sliding blocks drive the mounting ring to rotate on the moving block, the inner wall of the steel pipe is evenly smeared, and the problem that due to the fact that gaps exist among the multiple sponge layers, partial areas cannot be evenly smeared, and the working efficiency is reduced is solved as much as possible.

Description

Technical Field

[0001] This application relates to the technical field of engineering construction, and particularly relates to an oil coating device for the inner wall of the steel pipe of a vibro-sinking cast-in-place pile. Background Art

[0002] The vibro-sinking cast-in-place pile is a type of pile foundation widely used among many foundation types in contemporary engineering construction. Due to many advantages of this pile foundation construction technology, it is widely adopted by engineering technicians. It uses a steel pipe (i.e., a casing) adapted to the designed size of the pile. After a pile tip is sleeved at the end and then sunk into the soil, a steel bar cage is hoisted and placed in the casing. Then, while pouring concrete, it vibrates or hammers and pulls out the pipe, and uses the vibration during pulling out the pipe to compact the concrete to form the required cast-in-place pile.

[0003] The utility model patent with the publication number CN218475527U proposes an oil coating device for the inner wall of the steel pipe of a vibro-sinking cast-in-place pile, including an oil coating mechanism and a traction mechanism for driving the oil coating mechanism to move linearly back and forth. The oil coating mechanism includes a main shaft, two base plates connected to the main shaft and with an adjustable relative distance, and a plurality of arc-shaped thin storage oil tanks. These thin storage oil tanks are arranged in a circumferential annular array around the outside of the main shaft. The base plates and the thin storage oil tanks are connected through connecting rods. A sponge layer is attached to the outer arc surface of the thin storage oil tank. An oil seepage port is provided on the outer arc surface of the thin storage oil tank, and the oil in the thin storage oil tank infiltrates the sponge layer through the oil seepage port.

[0004] For the above-mentioned oil coating device for the inner wall of the steel pipe of a vibro-sinking cast-in-place pile, by adjusting the distance between the two base plates, controlling the inward contraction of these thin storage oil tanks, when the inner wall of the steel pipe needs to be coated with oil, expanding outward to make the sponge layer stick to the inner wall of the steel pipe, and then driving the oil coating mechanism to move axially through the traction mechanism, the inner wall of the steel pipe can be easily and efficiently coated with oil. However, when expanding outward to make the sponge layer fit the inner wall of the steel pipe, gaps will appear between multiple sponge layers, and there may be a problem that some areas cannot be evenly coated, resulting in a reduction in work efficiency. Utility Model Content

[0005] The purpose of the present utility model is to solve or at least alleviate the problem of the existing oil coating device for the inner wall of the steel pipe of a vibro-sinking cast-in-place pile. By adjusting the distance between the two base plates, controlling the inward contraction of these thin storage oil tanks, when the inner wall of the steel pipe needs to be coated with oil, expanding outward to make the sponge layer stick to the inner wall of the steel pipe, and then driving the oil coating mechanism to move axially through the traction mechanism, the inner wall of the steel pipe can be easily and efficiently coated with oil. However, when expanding outward to make the sponge layer fit the inner wall of the steel pipe, gaps will appear between multiple sponge layers, and there may be a problem that some areas cannot be evenly coated, resulting in a reduction in work efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The inner wall oiling device of the steel pipe of the bored pile comprises two fixed blocks, a moving block is slidably connected between the fixed blocks via a sliding assembly, a rotating assembly is provided on the moving block, an oiling assembly is provided on the rotating assembly, the rotating assembly comprises a mounting ring sleeved on the moving block, an annular electric slide rail is fixedly connected to the side wall of the moving block, two equidistantly distributed electric sliders are slidably connected to the annular electric slide rail, and one end of the electric slider away from the annular electric slide rail is fixedly connected to the mounting ring.

[0008] By adopting the above technical solution, when in use, the moving block is placed in the steel pipe, the oiling component is fitted with the inner wall of the steel pipe, and then the sliding component is started to drive the moving block to move in the steel pipe. At the same time, by starting the annular electric slide rail, the two electric sliders are moved at a uniform speed to drive the mounting ring to rotate on the moving block, and the inner wall of the steel pipe is evenly coated, and gaps between multiple sponge layers are avoided as much as possible. Some areas may not be evenly coated, resulting in reduced work efficiency.

[0009] Optionally, the sliding assembly includes a threaded rod rotatably connected between the two fixed blocks, one end of the threaded rod passes through the fixed block and is fixedly connected to a rotating disk, and the moving block is sleeved on the threaded rod to form a threaded connection.

[0010] By adopting the above technical solution, the threaded rod can be rotated forward and reversely by rotating the rotating disk, so that the moving block can be driven to move up and down.

[0011] Optionally, the oil coating assembly includes a plurality of equally spaced arc-shaped oil storage boxes fixedly connected to the outer side wall of the mounting ring via a connecting piece, a plurality of penetration holes are formed on the side wall of the arc-shaped oil storage box away from the mounting ring, and a sponge block is installed on the side wall of the arc-shaped oil storage box close to the penetration holes.

[0012] By adopting the above technical solution, the sponge block is fitted to the inner wall of the steel pipe, and lubricating oil is added to the arc-shaped oil storage box, so that the lubricating oil flows out through the penetration hole to soak the sponge block, so that the sponge block can oil the inner wall of the steel pipe.

[0013] Optionally, the connecting member includes a telescopic tube fixedly connected to the outer side wall of the mounting ring, a telescopic rod being slidably connected inside the telescopic tube, an end of the telescopic rod away from the telescopic tube being fixedly connected to the arc-shaped oil storage box, a side wall of the telescopic tube close to the arc-shaped oil storage box is provided with a fixing bolt, the fixing bolt passes through the telescopic tube and abuts against the telescopic rod, and the fixing bolt is threadedly connected to the telescopic tube.

[0014] By adopting the above technical solution, the distance between the arc-shaped oil storage box and the mounting ring can be adjusted by sliding the telescopic rod in the telescopic tube, making it convenient to fit the sponge block to the inner wall of the steel pipe with different pore sizes for oiling. At the same time, the telescopic rod can be fixed in the telescopic tube by turning the fixing bolt to prevent sliding.

[0015] Optionally, a limiting rod is fixedly connected between the fixing blocks and located on one side of the threaded rod, and the limiting rod is arranged parallel to the threaded rod.

[0016] By adopting the above technical solution, the limiting rod can prevent the moving block from rotating with the threaded rod when the threaded rod rotates, resulting in the inability to move up and down on the threaded rod.

[0017] Optionally, a mobile power source is fixedly connected to the upper surface of the moving block, and the mobile power source is electrically connected to the annular electric slide rail.

[0018] By adopting the above technical solution, the annular electric slide rail is powered by a mobile power supply, which is convenient for outdoor use without the need for an external power supply, thereby improving convenience.

[0019] Optionally, a side wall of the sponge block close to the arc-shaped oil storage box is fixedly connected with a plurality of plug-in blocks, and a side of the arc-shaped oil storage box close to the sponge block is provided with a plurality of slots, and the plug-in blocks are plugged into the slots.

[0020] By adopting the above technical solution, the sponge block can be easily removed from the arc-shaped oil storage box through the plug block and the slot, so as to facilitate replacement.

[0021] Optionally, a bearing is provided at the connection between the threaded rod and the fixed block, the outer wall of the bearing is fixedly connected to the fixed block, and the inner wall of the bearing is fixedly connected to the threaded rod.

[0022] By adopting the above technical solution, the friction between the threaded rod and the fixed block can be reduced by the bearing, making it convenient for operators to rotate the threaded rod.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. The present application is provided by the coordination of the structures such as the mounting ring, the annular electric slide rail and the electric slider. When in use, the moving block is placed in the steel pipe, the oiling component is fitted with the inner wall of the steel pipe, and then the sliding component is started to drive the moving block to move in the steel pipe. At the same time, the annular electric slide rail is started to make the two electric sliders move at a uniform speed, so as to drive the mounting ring to rotate on the moving block, and evenly apply the oil to the inner wall of the steel pipe, thereby avoiding the gap between multiple sponge layers as much as possible, and some areas may not be evenly applied, resulting in reduced work efficiency.

[0025] 2. By sliding the telescopic rod in the telescopic tube, the distance between the arc-shaped oil storage box and the mounting ring can be adjusted, which facilitates the fitting of the sponge block to the inner wall of the steel pipe with different aperture sizes for oiling. At the same time, rotating the fixing bolt can fix the telescopic rod in the telescopic tube to prevent sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 is an exploded structural schematic diagram of the rotating assembly of the present utility model;

[0028] Figure 3 is an exploded structural schematic diagram of the oiling assembly of the present utility model.

[0029] Description of the reference numerals: 1, fixed block; 2, moving block; 3, mounting ring; 4, annular electric slide rail; 5, electric slider; 6, threaded rod; 7, rotating disk; 8, arc-shaped oil storage box; 9, penetration hole; 10, sponge block; 11, telescopic tube; 12, telescopic rod; 13, fixing bolt; 14, limiting rod; 15, mobile power source; 16, plug block; 17, slot; 18, bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will further describe the present application in detail Figures 1-3 with reference to the accompanying drawings.

[0031] Please refer to Figures 1-3 , an oiling device for the inner wall of a steel pipe of a cast-in-place concrete pipe pile, includes two fixed blocks 1. A moving block 2 that moves back and forth between the two fixed blocks 1 is slidably connected between the fixed blocks 1 through a sliding assembly. A rotating assembly is provided on the moving block 2, and an oiling assembly for oiling the inner wall of the steel pipe is provided on the rotating assembly. The rotating assembly includes a mounting ring 3 sleeved on the moving block 2, and the oiling assembly is connected to the outer wall of the mounting ring 3. A ring-shaped electric slide rail 4 for providing power is fixedly connected to the side wall of the moving block 2. Two equally spaced electric sliders 5 are slidably connected to the ring-shaped electric slide rail 4, and one end of each electric slider 5 away from the ring-shaped electric slide rail 4 is fixedly connected to the mounting ring 3 to drive the mounting ring 3 to rotate on the moving block 2.

[0032] During use, place the moving block 2 inside the steel pipe to make the oiling assembly fit the inner wall of the steel pipe. Then start the sliding assembly to drive the moving block 2 to move in the steel pipe. At the same time, by starting the ring-shaped electric slide rail 4, the two electric sliders 5 move at a constant speed to drive the mounting ring 3 to rotate on the moving block 2, so as to evenly coat the inner wall of the steel pipe, and avoid the problem that there may be gaps between multiple sponge layers, resulting in uneven coating in some areas and reducing work efficiency.

[0033] Refer toFigure 1 The sliding component includes a threaded rod 6 rotatably connected between two fixed blocks 1. One end of the threaded rod 6 penetrates through the fixed block 1 and is fixedly connected to a rotating disk 7. The moving block 2 is sleeved on the threaded rod 6 and forms a threaded connection. By rotating the rotating disk 7 to rotate the threaded rod 6 forward and backward, the moving block 2 can be driven to move up and down.

[0034] Refer to Figure 3 The oiling component includes a plurality of arc-shaped oil storage boxes 8 evenly distributed on the outer side wall of the mounting ring 3 through connectors. A plurality of penetration holes 9 are formed on the side wall of the arc-shaped oil storage box 8 away from the mounting ring 3. A sponge block 10 is installed on the side wall of the arc-shaped oil storage box 8 close to the penetration holes 9. By fitting the sponge block 10 to the inner wall of the steel pipe and then adding lubricating oil to the arc-shaped oil storage box 8, the lubricating oil flows out through the penetration holes 9 to wet the sponge block 10, so that the sponge block 10 can oil the inner wall of the steel pipe.

[0035] Refer to Figure 3 The connector includes a telescopic tube 11 fixedly connected to the outer side wall of the mounting ring 3. A telescopic rod 12 is slidably connected in the telescopic tube 11. One end of the telescopic rod 12 away from the telescopic tube 11 is fixedly connected to the arc-shaped oil storage box 8. A fixing bolt 13 is provided on the side wall of the telescopic tube 11 close to the arc-shaped oil storage box 8. The fixing bolt 13 penetrates through the telescopic tube 11 and abuts against the telescopic rod 12. The fixing bolt 13 is threadedly connected to the telescopic tube 11. By sliding the telescopic rod 12 in the telescopic tube 11, the distance between the arc-shaped oil storage box 8 and the mounting ring 3 can be adjusted, which is convenient for fitting the sponge block 10 to the inner wall of the steel pipe with different aperture sizes for oiling. At the same time, rotating the fixing bolt 13 can fix the telescopic rod 12 in the telescopic tube 11 to prevent sliding.

[0036] Refer to Figure 1 A limiting rod 14 is fixedly connected on one side of the threaded rod 6 between the fixed blocks 1. The limiting rod 14 is arranged parallel to the threaded rod 6. By means of the limiting rod 14, it can be prevented that when the threaded rod 6 rotates, the moving block 2 rotates with the threaded rod 6, resulting in the inability to move up and down on the threaded rod 6.

[0037] Refer to Figure 1 A mobile power source 15 is fixedly connected to the upper surface of the moving block 2. The mobile power source 15 is electrically connected to the annular electric slide rail 4. By supplying power to the annular electric slide rail 4 through the mobile power source 15, it is convenient when used outdoors without the need for an external power source, improving the convenience.

[0038] Refer to Figure 3A plurality of plug-in blocks 16 are fixedly connected to the side wall of the sponge block 10 close to the arc-shaped oil storage box 8, and a plurality of slots 17 are provided on the side of the arc-shaped oil storage box 8 close to the sponge block 10. The plug-in blocks 16 are plugged into the slots 17. Through the plug-in blocks 16 and the slots 17, the sponge block 10 can be easily removed from the arc-shaped oil storage box 8 for replacement.

[0039] Reference Figure 1 A bearing 18 is provided at the connection between the threaded rod 6 and the fixed block 1. The outer wall of the bearing 18 is fixedly connected to the fixed block 1, and the inner wall of the bearing 18 is fixedly connected to the threaded rod 6. The bearing 18 can reduce the friction between the threaded rod 6 and the fixed block 1, making it convenient for the operator to rotate the threaded rod 6.

[0040] The implementation principle of the present application is: when in use, the moving block 2 is placed in the steel pipe, so that the oiling component is in contact with the inner wall of the steel pipe, and then the sliding component is started to drive the moving block 2 to move in the steel pipe. At the same time, by starting the annular electric slide rail 4, the two electric sliders 5 are moved at a uniform speed to drive the mounting ring 3 to rotate on the moving block 2, and the inner wall of the steel pipe is evenly coated, and gaps between multiple sponge layers are avoided as much as possible. Some areas may not be evenly coated, resulting in reduced work efficiency.

[0041] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An inner wall oiling device for a steel pipe of a cast-in-place pile, comprising two fixed blocks (1), wherein a moving block (2) is slidably connected between the fixed blocks (1) via a sliding assembly, wherein a rotating assembly is provided on the moving block (2), and an oiling assembly is provided on the rotating assembly, wherein the device is characterized in that: The rotating assembly comprises a mounting ring (3) sleeved on the moving block (2); a side wall of the moving block (2) is fixedly connected to an annular electric slide rail (4); two equidistantly distributed electric sliders (5) are slidably connected to the annular electric slide rail (4); and one end of the electric sliders (5) away from the annular electric slide rail (4) is fixedly connected to the mounting ring (3).

2. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 1 is characterized in that: The sliding assembly comprises a threaded rod (6) rotatably connected between the two fixed blocks (1), one end of the threaded rod (6) passes through the fixed block (1) and is fixedly connected to a rotating disk (7), and the moving block (2) is sleeved on the threaded rod (6) to form a threaded connection.

3. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 1 is characterized by: The oiling assembly comprises a plurality of equally spaced arc-shaped oil storage boxes (8) fixedly connected to the outer side wall of the mounting ring (3) via a connecting piece, a plurality of penetration holes (9) being provided on the side wall of the arc-shaped oil storage box (8) away from the mounting ring (3), and a sponge block (10) being installed on the side wall of the arc-shaped oil storage box (8) close to the penetration holes (9).

4. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 3 is characterized by: The connecting member comprises a telescopic tube (11) fixedly connected to the outer side wall of the mounting ring (3), a telescopic rod (12) being slidably connected inside the telescopic tube (11), an end of the telescopic rod (12) away from the telescopic tube (11) being fixedly connected to the arc-shaped oil storage box (8), a fixing bolt (13) being provided on a side wall of the telescopic tube (11) close to the arc-shaped oil storage box (8), the fixing bolt (13) passing through the telescopic tube (11) and abutting against the telescopic rod (12), and the fixing bolt (13) being threadedly connected to the telescopic tube (11).

5. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 2 is characterized by: A limiting rod (14) is fixedly connected between the fixing blocks (1) and located on one side of the threaded rod (6); the limiting rod (14) is arranged parallel to the threaded rod (6).

6. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 1 is characterized by: A mobile power source (15) is fixedly connected to the upper surface of the moving block (2), and the mobile power source (15) is electrically connected to the annular electric slide rail (4).

7. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 3 is characterized by: A plurality of insert blocks (16) are fixedly connected to a side wall of the sponge block (10) close to the arc-shaped oil storage box (8), and a plurality of slots (17) are provided on a side of the arc-shaped oil storage box (8) close to the sponge block (10), and the insert blocks (16) are plugged into the slots (17).

8. The inner wall oiling device of the steel pipe of the immersed pipe cast-in-place pile according to claim 2 is characterized by: A bearing (18) is provided at the connection between the threaded rod (6) and the fixed block (1); an outer wall of the bearing (18) is fixedly connected to the fixed block (1); and an inner wall of the bearing (18) is fixedly connected to the threaded rod (6).

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