A type of corrugated pipe elbow

Abstract

This utility model relates to the field of elbow technology, and in particular to a corrugated pipe elbow, comprising a stainless steel corrugated pipe, two steel wire ropes, two sets of locking devices, and two sets of middle plate assemblies. The two steel wire ropes are respectively and correspondingly arranged with the two sets of middle plate assemblies. Each middle plate assembly includes multiple ear plates with central through holes. The two free ends of a steel wire rope are adjustablely stacked together and locked by a set of locking devices to form a steel wire rope loop. The two ends and the middle of the steel wire rope loop are folded and pass through the corresponding central through holes. Each end of the stainless steel corrugated pipe has a connecting pipe port. This application achieves weight reduction, resistance to deformation under stress, long service life, reliable operation, and force transmission by using a stainless steel corrugated pipe as the main body of the elbow and utilizing steel wire ropes on both sides to bear or transmit the axial force of the elbow and limit the outward camber of the elbow. Furthermore, the steel wire rope loops formed by the steel wire ropes are adjustable to meet the needs of different bending angles.

Description

Technical Field

[0001] This utility model relates to the field of elbow technology, and in particular to a corrugated pipe elbow. Background Technology

[0002] Siphon-type emergency drainage devices are mainly used for drainage of reservoirs and cofferdams. They utilize the siphon principle to discharge internal water over a higher elevation, operating without power by leveraging water level differences. Variable-angle elbows are a crucial component of siphon drainage devices. They need to be able to adjust their angle to adapt to various terrains and transmit axial forces between pipes. The applicant has filed a Chinese patent application (application number 201420417803.2) disclosing an elbow with a flexible pipe, including a first connector and a second connector for connecting pipes, and a flexible bend. The first connector is connected to one end of the flexible bend, and the second connector is connected to the other end. The flexible bend comprises, from the inside out, an inner rubber layer, a first fabric layer, a steel wire frame layer, a second fabric layer, and an outer rubber layer. This elbow's main component is a composite structure of rubber, fabric, and steel wire. After years of use, this elbow exhibits shortcomings such as easy aging of the rubber component, short service life, heavy weight, and a small bending angle. Therefore, its defects are quite obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a corrugated pipe elbow.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A corrugated pipe elbow includes a stainless steel corrugated pipe, two steel wire ropes, two sets of locking devices, and two sets of middle plate assemblies symmetrically arranged on both sides of the stainless steel corrugated pipe. The two steel wire ropes are respectively arranged one-to-one with the two sets of middle plate assemblies. Each set of middle plate assemblies includes multiple ear plates that are fixedly connected to the side wall of the stainless steel corrugated pipe in a straight line. The ear plates have a central through hole. The two free ends of a steel wire rope can be adjusted to overlap together and locked by a set of locking devices to form a steel wire rope loop. The two ends of the steel wire rope loop are folded in half and pass through the central through holes of the ear plates located at both ends of the stainless steel corrugated pipe. The middle part of the steel wire rope loop is folded in half and passes through the central through hole of the ear plate located in the middle part of the stainless steel corrugated pipe. A connecting pipe port is provided at both ends of the stainless steel corrugated pipe.

[0006] Furthermore, the corrugated pipe elbow also includes two sets of side plate assemblies symmetrically arranged on both sides of the stainless steel corrugated pipe. The two sets of middle plate assemblies are respectively arranged one-to-one with the two sets of side plate assemblies. The middle plate assemblies and the side plate assemblies are arranged in a straight line. Each set of side plate assemblies includes two side ear plates fixedly connected to the side wall of the stainless steel corrugated pipe. One set of middle plate assemblies is located between the two side ear plates of one set of side plate assemblies. The side ear plates are provided with side through holes. The two ends of the wire rope loop are folded in half and pass through the side through holes of the two side ear plates respectively.

[0007] Furthermore, the side passage hole is a waist-shaped hole, and the length of the waist-shaped hole is not less than twice the diameter of the wire rope.

[0008] Furthermore, the through hole is an elongated hole, and the length of the elongated hole is not less than three times the diameter of the wire rope.

[0009] Furthermore, a pipe clamp is detachably connected to the outside of the connecting pipe, and the two ends of the wire rope loop are respectively wrapped around the bolts of the two pipe clamps.

[0010] Furthermore, in the two connecting ports of the stainless steel corrugated pipe, one connecting port is a plug-in port and the other connecting port is a sleeve port.

[0011] Furthermore, both connecting ports are plug-in interfaces.

[0012] Furthermore, both connecting ports are socket joints.

[0013] Furthermore, each set of locking devices includes one or more rope clamps.

[0014] The beneficial effects of this utility model are as follows: In practical applications, the corrugated pipe elbow is placed between two pipes that need to be bent and connected. One connecting port of the stainless steel corrugated pipe is sleeved together with one pipe and locked together with a pipe clamp. The other connecting port of the stainless steel corrugated pipe is sleeved together with another pipe and locked together with another pipe clamp. The two ends of the wire rope loop formed by the steel wire rope are respectively wrapped around the bolts of the two pipe clamps, that is, the bolts of the pipe clamps pass through the two ends of the wire rope loop. Then, according to the actual application scenario, the corrugated pipe elbow is bent at the required angle, so that the inner corrugation of the stainless steel corrugated pipe of the elbow is compressed and the outer corrugation is stretched. Then, the stacking length of the two free ends of each steel wire rope is adjusted so that the wire rope loops on the inner and outer sides are adjusted to a taut state. Finally, the locking device locks the two stacked free ends of the steel wire rope (the middle of the wire rope loop) together to keep the wire rope loop in a taut state. This utility model uses a stainless steel corrugated pipe as the main body of the elbow, and utilizes steel wire ropes on both sides to bear or transmit the axial force of the elbow and limit the outward arching of the elbow. This achieves the effects of weight reduction, resistance to deformation under stress, long service life, reliable operation, and force transmission. In addition, the steel wire rope loops formed by the steel wire ropes are adjustable to meet the needs of different bending angles, enabling bending at larger angles. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention after the pipe clamp is concealed.

[0016] Figure 2 This is a structural diagram of the present invention in use.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Stainless steel corrugated pipe; 2. Steel wire rope; 3. Locking device; 4. Middle ear plate; 5. Middle through hole; 6. Connecting pipe port; 7. Side ear plate; 8. Side through hole; 9. Pipe clamp; 10. Bolt; 11. Pipe body. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0020] like Figure 1 and Figure 2 As shown, the present invention provides a corrugated pipe elbow, which includes a stainless steel corrugated pipe 1, two steel wire ropes 2, two sets of locking devices 3, and two sets of middle plate assemblies symmetrically arranged on both sides of the stainless steel corrugated pipe 1. The two steel wire ropes 2 are respectively arranged one-to-one with the two sets of middle plate assemblies. Each set of middle plate assemblies includes multiple ear plates 4 that are fixedly connected to the side wall of the stainless steel corrugated pipe 1 in a straight line. The ear plates 4 have a central through hole 5. The two free ends of a steel wire rope 2 can be adjusted to be stacked together and locked by a set of locking devices 3 to form a steel wire rope 2 loop. The two ends of the steel wire rope 2 loop are folded in half and pass through the central through hole 5 of the ear plates 4 located at both ends of the stainless steel corrugated pipe 1. The middle part of the steel wire rope 2 loop is folded in half and passes through the central through hole 5 of the ear plate 4 located in the middle part of the stainless steel corrugated pipe 1. The central through hole 5 limits the steel wire rope 2 loop. A connecting pipe port 6 is provided at both ends of the stainless steel corrugated pipe 1. Specifically, a pipe clamp 9 is detachably connected to the outside of the connecting pipe port 6, and the two ends of the two turns of the steel wire rope are respectively wrapped around the bolts 10 of the two pipe clamps 9.

[0021] In practical applications, the corrugated pipe elbow is placed between two pipe bodies 11 that need to be bent and connected. One connecting port 6 of the stainless steel corrugated pipe 1 is connected to one pipe body 11 and locked together with a pipe clamp 9. The other connecting port 6 of the stainless steel corrugated pipe 1 is connected to another pipe body 11 and locked together with another pipe clamp 9. The two ends of the steel wire rope 2 loop formed by the steel wire rope 2 are respectively wrapped around the bolts 10 of the two pipe clamps 9, that is, the bolts 10 of the pipe clamp 9 pass through the two ends of the steel wire rope 2 loop. Then, according to the actual application scenario, the corrugated pipe elbow is bent at the required angle so that the inner corrugation of the stainless steel corrugated pipe 1 of the corrugated pipe elbow is compressed and the outer corrugation is stretched. Then, the stacking length of the two free ends of each steel wire rope 2 is adjusted so that the steel wire rope 2 loops located on the inner and outer sides are adjusted to the tensioned state. Finally, the locking device 3 locks the two stacked free ends of the steel wire rope 2 (the middle of the steel wire rope 2 loops) together to keep the steel wire rope 2 loops in the tensioned state. This invention utilizes a stainless steel corrugated pipe 1 as the main body of the elbow, and employs steel wire ropes 2 on both sides to bear or transmit the axial force of the elbow and limit its outward camber. This achieves weight reduction, resistance to deformation under stress, long service life, reliable operation, and force transmission. Furthermore, the two turns of the steel wire rope 2 are adjustable to meet different bending angle requirements, enabling bending at larger angles. This invention is particularly suitable for siphon drainage devices (siphon-type emergency drainage devices).

[0022] In this embodiment, the corrugated pipe elbow also includes two sets of side plate groups symmetrically arranged on both sides of the stainless steel corrugated pipe 1. The two sets of middle plate groups are respectively arranged in a one-to-one correspondence with the two sets of side plate groups. The middle plate groups and the side plate groups are arranged in a straight line. Each set of side plate groups includes two side ear plates 7 fixedly connected to the side wall of the stainless steel corrugated pipe 1. One set of middle plate groups is located between the two side ear plates 7 of one set of side plate groups. The side ear plates 7 are provided with side through holes 8. The two ends of the two turns of steel wire rope are folded in half and pass through the side through holes 8 of the two side ear plates 7 respectively.

[0023] In practical applications, after the two ends of the steel wire rope are folded in half, it not only passes through the central through hole 5 of the middle ear plate 4 located at both ends of the stainless steel corrugated pipe 1, but also passes through the side through hole 8 of the side ear plate 7. The side through hole 8 limits the end of the steel wire rope 2 turns to ensure the working stability of the steel wire rope 2 turns.

[0024] In this embodiment, the side through hole 8 is an oblong hole, and the length of the oblong hole is not less than twice the diameter of the wire rope 2. Preferably, the length of the oblong hole is equal to or slightly greater than twice the diameter of the wire rope 2. This structural design allows the end of the wire rope 2 loop to be folded in half and pass through the oblong hole. The oblong hole narrows the end of the wire rope 2 loop, allowing both ends of the wire rope 2 loop to be stably wrapped around the bolt 10 of the clamp 9.

[0025] In this embodiment, the central through hole 5 is an elongated hole, and the length of the elongated hole is not less than three times the diameter of the wire rope 2. Preferably, the length of the elongated hole is four times the diameter of the wire rope 2. This structural design facilitates the passage of the middle section of the wire rope 2 (the three segments of the wire rope 2) through the elongated hole.

[0026] In this embodiment, of the two connecting ports 6 of the stainless steel corrugated pipe 1, one connecting port 6 is a plug-in port and the other connecting port 6 is a sleeve port. In practical applications, the plug-in port of the stainless steel corrugated pipe 1 is inserted into the expanded port of one pipe body 11 and locked together by the pipe clamp 9, while the sleeve port of the stainless steel corrugated pipe 1 is sleeved outside the narrow port of the other pipe body 11 and locked together by the pipe clamp 9.

[0027] In another embodiment, both connecting ports 6 are plug-in interfaces. The two plug-in interfaces of the stainless steel corrugated pipe 1 are respectively inserted into the expansion ports of the two pipe bodies 11 and locked together by the pipe clamp 9.

[0028] In another embodiment, both connecting ports 6 are sleeve interfaces, and the two sleeve interfaces of the stainless steel corrugated pipe 1 are respectively sleeved outside the narrow openings of the two pipe bodies 11 and locked together by the pipe clamp 9.

[0029] In this embodiment, each set of locking devices 3 includes one or more rope clamps. The rope clamps lock the middle of the two turns of the wire rope 2 together and facilitate the adjustment of the stacking length of the two free ends of the wire rope 2.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A corrugated pipe bend characterised in that: The system includes a stainless steel corrugated pipe (1), two steel wire ropes (2), two sets of locking devices (3), and two sets of middle plate groups symmetrically arranged on both sides of the stainless steel corrugated pipe (1). The two steel wire ropes (2) are respectively arranged one-to-one with the two sets of middle plate groups. Each set of middle plate groups includes multiple ear plates (4) that are fixedly connected to the side wall of the stainless steel corrugated pipe (1) in a straight line. The ear plates (4) have a central through hole (5). The two free ends of a steel wire rope (2) can be adjusted to be stacked together and locked by a set of locking devices (3) to form a steel wire rope (2) loop. The two ends of the steel wire rope (2) loop are folded and pass through the central through hole (5) of the ear plates (4) located at both ends of the stainless steel corrugated pipe (1). The middle part of the steel wire rope (2) loop is folded and passes through the central through hole (5) of the ear plates (4) located in the middle of the stainless steel corrugated pipe (1). A connecting pipe port (6) is provided at both ends of the stainless steel corrugated pipe (1).

2. A bellows elbow according to claim 1, characterized in that: The corrugated pipe elbow also includes two sets of side plates symmetrically arranged on both sides of the stainless steel corrugated pipe (1). The two sets of middle plates are respectively arranged in a one-to-one correspondence with the two sets of side plates. The middle plates and the side plates are arranged in a straight line. Each set of side plates includes two side ear plates (7) fixedly connected to the side wall of the stainless steel corrugated pipe (1). One set of middle plates is located between the two side ear plates (7) of one set of side plates. The side ear plates (7) are provided with side through holes (8). The two ends of the wire rope (2) loop are folded and pass through the side through holes (8) of the two side ear plates (7) respectively.

3. A bellows elbow according to claim 2, characterised in that: The side passage hole (8) is a waist-shaped hole, and the length of the waist-shaped hole is not less than twice the diameter of the wire rope (2).

4. A bellows elbow according to claim 1, characterized in that: The through hole (5) is a long strip hole, and the length of the long strip hole is not less than three times the diameter of the wire rope (2).

5. A bellows elbow according to claim 1, characterized in that: A pipe clamp (9) is detachably connected to the outside of the connecting pipe port (6), and the two ends of the wire rope (2) are respectively wrapped around the bolts (10) of the two pipe clamps (9).

6. A bellows elbow according to claim 1, characterized in that: In the two connecting ports (6) of the stainless steel corrugated pipe (1), one connecting port (6) is a plug-in port and the other connecting port (6) is a socket port.

7. A bellows elbow according to claim 1, characterized in that: Both connecting ports (6) are plug-in interfaces.

8. A bellows elbow according to claim 1, characterized in that: Both connecting pipe ports (6) are sockets.

9. A bellows elbow according to claim 1, characterized in that: Each set of locking devices (3) includes one or more rope clamps.

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