Polyurethane soft oil protection cofferdam

By setting up support components around the polyurethane cofferdam body and using detachable connectors to form support, the problem of sewage and oil leakage caused by air leakage of the inflatable cofferdam is solved, realizing support protection and environmental protection without the need for inflation.

CN224092544UActive Publication Date: 2026-04-07HUBEI ANYI INTELLIGENT CONTROL ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing inflatable cofferdam's inflation pipes are prone to leakage during support and protection, leading to the leakage of sewage and oil, causing environmental pollution.

Method used

A polyurethane soft oil-resistant cofferdam is used. Support components are installed at intervals around the outer perimeter of the polyurethane cofferdam body and connected by detachable connectors to form support on all four sides of the polyurethane cofferdam body, thus preventing collapse.

Benefits of technology

It achieves airless support and protection, preventing the leakage of sewage and oil, protecting the environment, and has a simple and reusable structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a polyurethane soft oil protection cofferdam, and belongs to the technical field of oil field sewage and dirty oil collecting and discharging equipment. Comprising a polyurethane cofferdam body and supporting assemblies, the multiple supporting assemblies are arranged on the outer side of the periphery of the polyurethane cofferdam body at intervals, the supporting assemblies are detachably connected through connecting pieces, folding edges are arranged on the edges, corresponding to the connecting pieces, of the port of the polyurethane cofferdam body, one ends of the folding edges are fixedly connected with the side face of the polyurethane cofferdam body, and the other ends of the folding edges are fixedly connected with the side face of the polyurethane cofferdam body. An assembling cavity is formed between the folding edge and the polyurethane cofferdam body, the assembling cavity is connected with the connecting piece in a matched and inserted mode, the supporting assembly and the connecting piece are matched to support the side face of the polyurethane cofferdam body, and the polyurethane soft oil protection cofferdam does not need to be inflated, is easy to assemble and can be repeatedly used. The polyurethane soft oil protection cofferdam solves the problem of environmental pollution caused by leakage of sewage and sump oil due to air leakage of an inflation pipe of an existing inflation cofferdam during supporting and protection.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of polyurethane soft body oil protection cofferdams, belong to oilfield sewage and oil collection and discharge equipment technical field. BACKGROUND

[0002] Oilfield operation has strict regulations, in the process of repairing well or drilling, in order to prevent sewage and oil from causing environmental pollution, the sewage and oil generated by the pipe and other downhole tools need to be collected for centralized treatment, the existing collection of sewage and oil generated by the pipe and other downhole tools uses inflatable cofferdams, the inflatable cofferdams are composed of soft platform, non-slip mat, anti-puncture mat, support mat, oil pipe support frame and inflatable equipment, the soft platform is connected with the inflatable equipment, the soft platform is composed of bottom mat and inflatable pipe, the inflatable pipe is made around the bottom mat and is integrated with the bottom mat, the overall weight of the inflatable cofferdams is light, the soft platform and the inflatable pipe can be inflated and reused, and do not need to be treated for corrosion and rust, with long service life.

[0003] The inventor found in daily use that the inflatable cofferdams use inflatable pipes as barriers to support and protect the sewage and oil to prevent leakage, the inflatable pipes are gas columns formed by inflating high-pressure gas after edge sealing by polyurethane film hot melt welding, when the inflatable cofferdams contain oil, the oil will squeeze the inflatable pipes, causing the pressure in the inflatable pipes to suddenly increase and the edge sealing to fail, once the edge sealing fails, the gas column will leak at a large area at the edge sealing position, losing the supporting and protecting effect, the leakage of the gas column will cause the sewage and oil in the cofferdams to leak out, polluting the environment, in addition, the inflatable pipes are easily punctured by sharp objects on site, causing leakage and losing the effect of surrounding the sewage and oil, therefore, it is necessary to improve them. SUMMARY

[0004] The utility model aims at providing a kind of polyurethane soft body oil protection cofferdams without inflating, simple to assemble and reusable, to solve the problem of leakage of the inflatable pipes of the existing inflatable cofferdams when supporting and protecting, causing the sewage and oil to leak out and polluting the environment.

[0005] The technical solution of the utility model is as follows:

[0006] A kind of polyurethane soft body oil protection cofferdams, comprising a polyurethane cofferdam body and a support assembly, characterized in that: a plurality of support assemblies are arranged at intervals on the outer side of the polyurethane cofferdam body, the support assemblies are detachably connected through connecting pieces, a folding edge is arranged on the edge of the port of the polyurethane cofferdam body corresponding to the connecting pieces, one end of the folding edge is fixedly connected with the side surface of the polyurethane cofferdam body, an assembly cavity is formed between the folding edge and the polyurethane cofferdam body, the assembly cavity is inserted into the connecting piece, and the support assembly and the connecting piece cooperate to support the side surface of the polyurethane cofferdam body.

[0007] The polyurethane cofferdam body is a rectangular box-shaped body, a sewage pipe is arranged on one end face of the polyurethane cofferdam body, and a stop valve is arranged on the sewage pipe.

[0008] The support assembly comprises a vertical rod and a support rod, the vertical rod is a straight rod, the support rod is fixedly installed on the vertical rod, the support rod is in the shape of an inverted '∠', upper positioning sleeves are symmetrically arranged on the upper half of the circumference of the vertical rod, and lower positioning sleeves are symmetrically arranged on the lower half of the circumference of the vertical rod.

[0009] The upper positioning sleeves and the lower positioning sleeves are in the shape of a circular tube.

[0010] The connecting piece is composed of an upper connecting rod and a lower connecting rod, the upper connecting rod and the lower connecting rod are in the shape of a straight rod, the upper connecting rod and the lower connecting rod are provided with a locking hook at two ends in the shape of a right angle, and the locking hook is inserted and assembled in cooperation with the positioning sleeve.

[0011] The support assembly comprises a vertical frame and a support frame, the vertical frame is in the shape of a triangle, the support frame is in the shape of a rhombus, the support frame is arranged at the bottom end of the vertical frame, upper assembly barrels are symmetrically fixed on the upper part of the vertical frame, and lower assembly barrels are symmetrically fixed on the lower part of the vertical frame.

[0012] The upper assembly barrels and the lower assembly barrels are in the shape of a cylinder, the center holes of the upper assembly barrels and the lower assembly barrels are in the shape of a rectangle, and top bead holes are arranged on the outer circles of the upper assembly barrels and the lower assembly barrels and communicate with the center holes.

[0013] The included angle between the symmetrically arranged assembly barrels is 90-180°.

[0014] The connecting piece is composed of an upper rod and a lower rod, the upper rod and the lower rod are in the shape of a straight circular rod, rectangular convex columns are arranged at two ends of the upper rod and the lower rod, the rectangular convex columns are inserted and assembled in cooperation with the center holes of the assembly barrels, spring top beads are arranged at one end of the rectangular convex columns, and the spring top beads are clamped in cooperation with the top bead holes.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The polyurethane soft oil protection cofferdam is installed by placing the support assemblies along the outer side of the edges of the polyurethane cofferdam body at intervals, and installing the connecting pieces between the support assemblies. The specific steps of installing the connecting pieces between the support assemblies are as follows: the upper connecting rod of the connecting piece is inserted into the assembly cavity, the lock hook at one end of the upper connecting rod is inserted into the upper positioning sleeve of one of the support assemblies, and the lock hook at the other end of the upper connecting rod is inserted into the upper positioning sleeve of the other support assembly, thereby locking the upper half of the two support assemblies. Then, the lock hook at one end of the lower connecting rod is inserted into the lower positioning sleeve of one of the support assemblies, and the lock hook at the other end of the lower connecting rod is inserted into the lower positioning sleeve of the other support assembly, thereby locking the lower half of the two support assemblies. The above steps are repeated to install the connecting pieces between the support assemblies in sequence. When the connecting pieces are installed between the support assemblies, the support assemblies and the connecting pieces can support the four side surfaces of the polyurethane cofferdam body to prevent the side surfaces from collapsing. Thus, the installation of the entire polyurethane soft oil protection cofferdam is completed. The polyurethane soft oil protection cofferdam does not need to be inflated, is simple to assemble, and can be reused. The problem of environmental pollution caused by the leakage of sewage and oil due to air leakage of the air inflation pipe of the existing inflatable cofferdam during support and protection is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structure schematic view of the utility model;

[0018] Figure 2 It is a top view structure schematic view of the utility model;

[0019] Figure 3 It is a perspective structure schematic view of the support assembly in the utility model;

[0020] Figure 4 It is a perspective structure schematic view of the upper connecting rod in the utility model;

[0021] Figure 5 It is a perspective structure schematic view of the improved part of the support assembly in the utility model;

[0022] Figure 6 It is a perspective structure schematic view of the upper rod in the utility model.

[0023] In the drawing: 1, polyurethane cofferdam body; 2, sewage pipe; 3, stop valve; 4, vertical rod; 5, support rod; 6, upper positioning sleeve; 7, lower positioning sleeve; 8, upper connecting rod; 9, lower connecting rod; 10, lock hook; 11, folded edge; 12, assembly cavity; 13, vertical frame; 14, support frame; 15, upper assembly cylinder; 16, lower assembly cylinder; 17, top bead hole; 18, upper rod; 19, lower rod; 20, rectangular protruding column; 21, spring top bead. DETAILED DESCRIPTION

[0024] As shown in the accompanying drawings Figures 1-6 Embodiment 1

[0025] The polyurethane soft oil protection cofferdam comprises a polyurethane cofferdam body 1 and a supporting assembly, the polyurethane cofferdam body 1 is a rectangular box-shaped body, a sewage pipe 2 is arranged on one end face of the polyurethane cofferdam body 1, a stop valve 3 is arranged on the sewage pipe 2, and during operation, sewage and oil in the polyurethane cofferdam body 1 can be guided and conveyed to a storage tank at the construction site for centralized treatment.

[0026] A plurality of supporting assemblies are arranged at intervals on the outer side of the polyurethane cofferdam body 1, the supporting assembly comprises a vertical rod 4 and a supporting rod 5, the vertical rod 4 is a long straight rod, the supporting rod 5 is fixedly installed on the circumference of the vertical rod 4, the supporting rod 5 is in the shape of “∠”, the upper half of the vertical rod 4 is symmetrically provided with an upper positioning sleeve 6, and the lower half of the vertical rod 4 is symmetrically provided with a lower positioning sleeve 7, the upper positioning sleeve 6 and the lower positioning sleeve 7 are respectively in the shape of a circular tube.

[0027] The supporting assemblies are detachably connected through a connecting piece, the connecting piece is composed of an upper connecting rod 8 and a lower connecting rod 9, the upper connecting rod 8 and the lower connecting rod 9 are respectively in the shape of a straight rod, the upper connecting rod 8 and the lower connecting rod 9 are respectively provided with a lock hook 10 at both ends in the shape of a right angle, the lock hook 10 of the upper connecting rod 8 is inserted and fitted with the upper positioning sleeve 6 of the supporting assembly, and the lock hook 10 of the lower connecting rod 9 is inserted and fitted with the lower positioning sleeve 7 of the supporting assembly.

[0028] The connecting piece is provided with a folded edge 11 on the edge of the port of the polyurethane cofferdam body 1, one end of the folded edge 11 is fixedly connected with the polyurethane cofferdam body 1, an assembly cavity 12 is formed between the folded edge 11 and the polyurethane cofferdam body 1, the assembly cavity 12 is inserted and fitted with the upper connecting rod 8 of the connecting piece, and during operation, the four side surfaces of the polyurethane cofferdam body 1 can be supported through the cooperation of the supporting assembly and the connecting piece, so that the problem of collapse is avoided.

[0029] ​When the polyurethane soft oil protection cofferdam is used, first, the polyurethane cofferdam body 1 is unfolded on the flat ground at the construction site, then the support assemblies are placed at intervals along the outer side of the four edges of the polyurethane cofferdam body 1, and the connecting pieces are installed between the two support assemblies. The specific steps for installing the connecting pieces between the two support assemblies are as follows: the upper connecting rod 8 of the connecting piece is inserted through the assembly cavity 12, the lock hook 10 at one end of the upper connecting rod 8 is inserted into the upper positioning sleeve 6 of one of the support assemblies, and the lock hook 10 at the other end of the upper connecting rod 8 is inserted into the upper positioning sleeve 6 of the other support assembly, thereby locking the upper half of the two support assemblies. Then, the lock hook 10 at one end of the lower connecting rod 9 is inserted into the lower positioning sleeve 7 of one of the support assemblies, and the lock hook 10 at the other end of the lower connecting rod 9 is inserted into the lower positioning sleeve 7 of the other support assembly, thereby locking the lower half of the two support assemblies. Repeat the above steps to install the connecting pieces between the two support assemblies in turn. When all the connecting pieces are installed between the two support assemblies, the support assemblies and the connecting pieces can support the four side surfaces of the polyurethane cofferdam body 1 to prevent the side surfaces from collapsing. In this way, the installation of the entire polyurethane soft oil protection cofferdam is completed. Then, the oil pipe soaked with sewage and oil is placed into the polyurethane cofferdam body 1, and the sewage and oil on the oil pipe can be collected by the polyurethane cofferdam body 1, thereby preventing the sewage and oil from falling to the ground and polluting the surrounding environment. Example 2

[0030] The polyurethane soft oil protection cofferdam comprises a polyurethane cofferdam body 1 and a support assembly. The polyurethane cofferdam body 1 is a rectangular box-shaped body. A sewage discharge pipe 2 is arranged on one end face of the polyurethane cofferdam body 1. A stop valve 3 is arranged on the sewage discharge pipe 2.

[0031] A plurality of support assemblies are arranged at intervals on the outer side of the polyurethane cofferdam body 1. Each support assembly comprises a vertical frame 13 and a support frame 14. The vertical frame 13 is triangular in shape. The support frame 14 is fixedly installed at the bottom end of the vertical frame 13. The support frame 14 is rhombus-shaped. An upper assembly cylinder 15 is symmetrically fixedly installed on the upper part of the vertical frame 13. A lower assembly cylinder 16 is symmetrically fixedly installed on the lower part of the vertical frame 13 corresponding to the upper assembly cylinder 15. The upper assembly cylinder 15 and the lower assembly cylinder 16 are respectively cylindrical in shape. The central holes of the upper assembly cylinder 15 and the lower assembly cylinder 16 are rectangular in shape. Top bead holes 17 are formed in the outer circles of the upper assembly cylinder 15 and the lower assembly cylinder 16. The top bead holes 17 are in communication with the central holes.

[0032] The included angle between the upper assembly cylinders 15 of the vertical frame 13 and the included angle between the lower assembly cylinders 16 are 90°. In this way, the assembly cylinders with an included angle of 90° can be arranged at the corners of the polyurethane cofferdam body 1. The included angle between the upper assembly cylinders 15 of the vertical frame 13 and the included angle between the lower assembly cylinders 16 are 180°. The assembly cylinders with an included angle of 180° can be arranged in the side edge area of the polyurethane cofferdam body 1.

[0033] The connecting piece is composed of an upper rod 18 and a lower rod 19, the upper rod 18 and the lower rod 19 are straight circular rod-shaped, the upper rod 18 and the lower rod 19 are respectively provided with a rectangular protruding column 20 at two ends, the rectangular protruding column 20 is matched and inserted with the center hole of the assembling cylinder, the rectangular protruding column 20 is provided with a spring top bead 21 at one end, the spring top bead 21 is matched and clamped with the top bead hole 17, and in working, the connecting piece and the supporting assembly can be detachably connected through the cooperation of the spring top bead 21 and the top bead hole 17.

[0034] When the polyurethane soft oil protection cofferdam is used, first, the polyurethane cofferdam body 1 is unfolded on the flat ground at the construction site, then the supporting assemblies with an included angle of 90° between the assembling cylinders are placed at the four corners of the polyurethane cofferdam body 1, the supporting assemblies with an included angle of 180° between the assembling cylinders are evenly placed outside the edges of the polyurethane cofferdam body, and the connecting pieces are installed between the two supporting assemblies, the specific steps of installing the connecting piece between the two supporting assemblies are as follows: first, the upper rod 18 of the connecting piece is inserted into the assembling cavity 12, then the rectangular protruding column 20 at one end of the upper rod 18 is matched and inserted with the upper assembling cylinder 15 of one of the supporting assemblies, and the spring top bead 21 of the rectangular protruding column 20 is locked into the top bead hole 17 of the upper assembling cylinder 15, then the rectangular protruding column 20 at the other end of the upper rod 18 is matched and inserted with the upper assembling cylinder 15 of the other supporting assembly, and the spring top bead 21 of the rectangular protruding column 20 is also locked into the top bead hole 17 of the upper assembling cylinder 15, thereby realizing the locking of the upper half part positions of the two supporting assemblies, then the rectangular protruding column 20 at one end of the lower rod 19 is matched and inserted with the lower assembling cylinder 16 of one of the supporting assemblies, and the spring top bead 21 of the rectangular protruding column 20 is locked into the top bead hole 17 of the lower assembling cylinder 16, then the rectangular protruding column 20 at the other end of the lower rod 19 is matched and inserted with the lower assembling cylinder 16 of the other supporting assembly, and the spring top bead 21 of the rectangular protruding column 20 is locked into the top bead hole 17 of the lower assembling cylinder 16, thereby realizing the locking of the lower half part positions of the two supporting assemblies; the above steps are repeated, and the connecting pieces are sequentially installed between the two supporting assemblies, when the connecting pieces are installed between the two supporting assemblies, the supporting assemblies and the connecting pieces can support the four side surfaces of the polyurethane cofferdam body 1, so as to avoid the collapse of the side surfaces and the leakage of the contaminated oil to pollute the environment. Thus, the installation work of the entire polyurethane soft oil protection cofferdam is completed, then the oil pipe full of contaminated water and oil is put into the polyurethane cofferdam body 1, and the contaminated water and oil on the oil pipe can be collected through the polyurethane cofferdam body 1, so as to realize the non-falling and non-pollution of the contaminated water and oil to the surrounding environment.

Claims

1. A polyurethane flexible oil containment dike, comprising a polyurethane dike body (1) and a support assembly, characterized in that: Multiple support components are spaced around the polyurethane cofferdam body (1). The support components are detachably connected by connectors. A folded edge (11) is provided on the edge of the port of the polyurethane cofferdam body (1) corresponding to the connector. One end of the folded edge (11) is fixedly connected to the side of the polyurethane cofferdam body (1). An assembly cavity (12) is formed between the folded edge (11) and the polyurethane cofferdam body (1). The assembly cavity (12) is inserted into the connector. The support components and the connector cooperate to support the side of the polyurethane cofferdam body (1).

2. The polyurethane flexible oil-resistant cofferdam according to claim 1, characterized in that: The polyurethane cofferdam body (1) is a rectangular box-shaped body. A sewage pipe (2) is provided on one end face of the polyurethane cofferdam body (1), and a shut-off valve (3) is provided on the sewage pipe (2).

3. The polyurethane flexible oil-resistant cofferdam according to claim 1, characterized in that: The support assembly includes a vertical pole (4) and a support rod (5). The vertical pole (4) is a straight rod, and the support rod (5) is fixedly installed on the vertical pole (4). The support rod (5) is in the shape of "∠". The upper positioning sleeve (6) is symmetrically arranged on the upper half of the circumference of the vertical pole (4), and the lower positioning sleeve (7) is symmetrically arranged on the lower half of the circumference of the vertical pole (4).

4. The polyurethane flexible oil-resistant cofferdam according to claim 3, characterized in that: The upper positioning sleeve (6) and the lower positioning sleeve (7) are both cylindrical.

5. The polyurethane flexible oil-resistant cofferdam according to claim 1, characterized in that: The connector consists of an upper connecting rod (8) and a lower connecting rod (9). The upper connecting rod (8) and the lower connecting rod (9) are straight rods. The two ends of the upper connecting rod (8) and the lower connecting rod (9) are respectively provided with locking hooks (10) at right angles. The locking hooks (10) are inserted into the positioning sleeve.

6. The polyurethane soft oil-resistant cofferdam according to claim 1, characterized in that: The support assembly includes a vertical frame (13) and a support frame (14). The vertical frame (13) is triangular in shape, and the support frame (14) is rhomboid in shape. The support frame (14) is provided at the bottom of the vertical frame (13). An upper mounting cylinder (15) is symmetrically fixed on the upper part of the vertical frame (13), and a lower mounting cylinder (16) is symmetrically fixed on the lower part of the vertical frame (13) corresponding to the upper mounting cylinder (15).

7. A polyurethane flexible oil-resistant cofferdam according to claim 6, characterized in that: The upper assembly cylinder (15) and the lower assembly cylinder (16) are cylindrical. The central hole of the upper assembly cylinder (15) and the lower assembly cylinder (16) is rectangular. A top bead hole (17) is provided on the outer circle of the upper assembly cylinder (15) and the lower assembly cylinder (16), and the top bead hole (17) is connected to the central hole.

8. The polyurethane flexible oil-resistant cofferdam according to claim 7, characterized in that: The included angle between the symmetrically arranged assembly cylinders is 90-180°.

9. The polyurethane flexible oil-resistant cofferdam according to claim 1, characterized in that: The connector consists of an upper rod (18) and a lower rod (19). The upper rod (18) and the lower rod (19) are straight round rods. Rectangular protrusions (20) are provided at both ends of the upper rod (18) and the lower rod (19). The rectangular protrusions (20) are inserted into the center hole of the assembly cylinder. A spring ball (21) is provided at one end of the rectangular protrusion (20). The spring ball (21) is engaged with the ball hole (17).