Leak detection device for metal hoses

Abstract

The utility model discloses a kind of leak detection devices for metal hose, including the metal hose to be detected and two oppositely arranged barrels, first connecting flange is installed on the opening end face of barrel, metal hose is set between barrel, the second connecting flange of metal hose both ends is in contact with the first connecting flange on barrel and is set, the both ends of metal hose are equipped with press, the outer side of press is just for the fixed hole of second connecting flange Place is equipped with locating rod.The utility model is simple in structure, can drive press outward by electric push rod, and make the limiting column on press insert into the limiting hole of half ring, so that press can be connected with electric push rod, and by the extrusion of press to electric push rod, first connecting flange and second connecting flange can be directly pressed, which facilitates the installation and subsequent disassembly of metal hose.

Description

Technical Field

[0001] This utility model relates to the field of metal hose testing technology, specifically to a leak-proof testing device for metal hoses. Background Technology

[0002] Metal hoses are an important component in the connection pipelines of modern industrial equipment. After the metal hoses are manufactured, manufacturers need to test various data of the metal hoses, including waterproof and fireproof testing, sealing testing, toughness testing, and corrosion resistance testing. Among them, the sealing testing process requires the use of leak detection devices. However, the existing leak detection devices are relatively cumbersome to connect to the metal hoses when testing them, requiring the use of a large number of bolts and nuts, making the disassembly and assembly of each metal hose quite troublesome and affecting the efficiency of the testing. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a leak detection device for metal hoses that does not require bolts and nuts and can quickly complete the installation of metal hoses by outward expansion and compression, thereby solving the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a leak-proof detection device for a metal flexible hose, comprising a metal flexible hose to be tested and two opposing cylindrical bodies. A first connecting flange is installed on the open end face of each cylindrical body. The metal flexible hose is disposed between the cylindrical bodies. The second connecting flanges at both ends of the metal flexible hose abut against the first connecting flanges on the cylindrical bodies. Both ends of the metal flexible hose are provided with a compression bar. A positioning rod is installed on the outer side of the compression bar opposite to the fixing hole of the second connecting flange. The other end of the positioning rod passes through the fixing hole on the first and second connecting flanges. A pressing mechanism is installed on both sides of the first connecting flange to press the first and second connecting flanges inward.

[0005] As a preferred technical solution, the extrusion mechanism includes an electric push rod, a fixed seat, and a pressure block. The fixed seat is installed on both sides of the first connecting flange, and each fixed seat is provided with a through hole. The electric push rod is installed on the outer side of the fixed seat, and the piston rod of the electric push rod passes through the through hole and is fixedly connected to the pressure block. One end of the pressure block extends to the opposite surface of the crusher and presses the crusher inward.

[0006] As a preferred technical solution, the crusher is divided into two halves in the middle and consists of two semi-rings. Each half-ring has a connecting groove on its open end, which faces the second connecting flange. The other half-ring has a protruding connecting part at its open end opposite the connecting groove. The connecting part is inserted into the connecting groove. Both the connecting part and the connecting groove are arranged in a "T" shape.

[0007] As a preferred technical solution, a support plate is installed on the outside of the cylinder, and a bottom plate is installed on the other end of the support plate.

[0008] As a preferred technical solution, a pressure gauge is installed on one side of the cylinder, and an air inlet pipe connected to a metal hose is installed on the other side of the cylinder. A valve is installed on the air inlet pipe, and a hose is connected to the other end of the air inlet pipe. The other end of the hose is connected to an air pressure pump.

[0009] As a preferred technical solution, limiting holes are provided on the outer side of the semi-ring, and limiting posts are installed on the inner side of the pressure block opposite to the limiting holes. The limiting posts are all inserted into the corresponding limiting holes.

[0010] The beneficial effects of this utility model are as follows: This utility model has a simple structure. The compression block is composed of two semi-rings, which can be smoothly fitted onto both ends of the metal hose. The connection between the semi-rings is completed by the connection part and the connection groove. The electric push rod can drive the compression block to move outward and insert the limiting post on the compression block into the limiting hole of the semi-ring, so that the compression block is connected to the electric push rod. The compression of the compression block by the electric push rod can directly press the first connecting flange and the second connecting flange, which facilitates the installation and subsequent disassembly of the metal hose, eliminates the need for bolts and nuts, and increases testing efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after removing any pressure block;

[0014] Figure 3 This is a schematic diagram of the structure of the pressure ring of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the pressure block of this utility model.

[0016] The components are as follows: 1. Metal hose; 2. Second connecting flange; 3. First connecting flange; 4. Cylinder; 5. Pressure gauge; 6. Air inlet pipe; 7. Valve; 8. Positioning rod; 9. Half ring; 11. Pressure block; 12. Fixed seat; 13. Electric push rod; 14. Base plate; 15. Limiting hole; 16. Connecting part; 17. Limiting post. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses a leak-proof detection device for a metal flexible hose, comprising a metal flexible hose 1 to be tested and two opposing cylindrical bodies 4. A first connecting flange 3 is installed on the open end face of each cylindrical body 4. The metal flexible hose 1 is disposed between the cylindrical bodies 4. The second connecting flanges 2 at both ends of the metal flexible hose 1 abut against the first connecting flanges 3 on the cylindrical bodies 4. Both ends of the metal flexible hose 1 are provided with a compression bar. A positioning rod 8 is installed on the outer side of the compression bar at the fixing hole of the second connecting flange 2. The other end of the positioning rod 8 passes through the fixing hole on the first connecting flange 3 and the second connecting flange 2. A pressing mechanism for pressing the first connecting flange 3 and the second connecting flange 2 inward is installed on both sides of the first connecting flange 3.

[0021] In this embodiment, the extrusion mechanism includes an electric push rod 13, a fixed seat 12, and a pressure block 11. The fixed seat 12 is installed on both sides of the first connecting flange 3, and each fixed seat 12 is provided with a through hole. The electric push rod 13 is installed on the outer side of the fixed seat 12. The piston rod of the electric push rod 13 passes through the through hole and is fixedly connected to the pressure block 11. One end of the pressure block 11 extends to the opposite surface of the crushed object and presses it inward to the crushed object. The electric push rod is connected to a controller and a power supply, so as to control the extension and retraction of the electric push rod.

[0022] In this embodiment, the crusher is divided into two halves of a ring 9. Each half of the ring 9 has a connecting groove on its open end, which faces the second connecting flange 2. The other half of the ring 9 has a connecting part 16 protruding from its open end opposite the connecting groove. The connecting part 16 is inserted into the connecting groove. Both the connecting part 16 and the connecting groove are arranged in a "T" shape.

[0023] In this embodiment, a support plate is installed on the outside of the cylinder 4, and a bottom plate 14 is installed on the other end of the support plate.

[0024] In this embodiment, a pressure gauge 5 is installed on one side of the cylinder 4, and an air inlet pipe 6 connected to the metal hose 1 is installed on the other side of the cylinder 4. A valve 7 is installed on the air inlet pipe 6, and a hose is connected to the other end of the air inlet pipe 6. The other end of the hose is connected to an air pressure pump.

[0025] In this embodiment, each of the outer surfaces of the semi-ring 9 is provided with a limiting hole 15, and each of the inner surfaces of the pressure block 11 is provided with a limiting post 17 opposite to the limiting hole 15. The limiting post 17 is inserted into the corresponding limiting hole 15. The pressure ring can be positioned by the insertion between the limiting post and the limiting hole on the pressure block.

[0026] Working principle: Place the metal hose 1 to be tested between two oppositely arranged cylinders 4, so that the second connecting flanges 2 at both ends of the metal hose are aligned and fitted with the first connecting flanges 3 at the ends of the cylinders;

[0027] The split-type pressure ring (composed of two half-rings 9) is fitted onto both ends of the metal hose. The two half-rings 9 are combined into a complete pressure ring by the insertion and engagement of the "T"-shaped connection part 16 with the connection groove, so that it fits tightly against the outside of the second connection flange 2.

[0028] The positioning rod 8 on the pressure ring passes through the fixing holes of the second connecting flange 2 and the first connecting flange 3 in sequence, initially aligning and positioning the flanges;

[0029] After the above is completed, the electric push rod 13 is activated to push the pressure block 11 to move towards the pressure ring. The limiting post 17 on the inner side of the pressure block 11 is inserted into the limiting hole 15 on the pressure ring half ring 9 to achieve the positioning connection between the pressure block and the pressure ring. The electric push rod 13 continues to apply thrust, pressing the pressure ring inward through the pressure block 11, thereby making the second connecting flange 2 and the first connecting flange 3 fit tightly together to form a sealed connection.

[0030] During testing, open the valve and use the air pump to pump high-pressure gas through the hose, connecting pipe, and cylinder into the metal hose. After reaching the specified high pressure, close the valve and observe the pressure reading using a pressure gauge. If there is no leakage, the pressure gauge reading will not decrease; otherwise, the reading will decrease.

[0031] When disassembling the metal hose, the electric push rod 13 extends, causing the pressure block 11 to disengage from the pressure ring. The "T"-shaped connecting part 16 of the pressure ring is pulled out from the connecting groove. The half ring 9 is then disassembled, and the metal hose can be removed, greatly facilitating the disassembly and assembly of the metal hose.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A leak detection device for metal flexible hoses, characterized in that: The device includes a metal hose (1) to be tested and two opposing cylindrical bodies (4). A first connecting flange (3) is installed on the open end face of each cylindrical body (4). The metal hose (1) is located between the cylindrical bodies (4). The second connecting flanges (2) at both ends of the metal hose (1) abut against the first connecting flanges (3) on the cylindrical body (4). Both ends of the metal hose (1) are provided with a crusher. A positioning rod (8) is installed on the outer side of the crusher opposite to the fixing hole of the second connecting flange (2). The other end of the positioning rod (8) passes through the fixing hole on the first connecting flange (3) and the second connecting flange (2). Both sides of the first connecting flange (3) are provided with a pressing mechanism that presses the first connecting flange (3) and the second connecting flange (2) inward.

2. The leak detection device for metal hoses according to claim 1, characterized in that: Each extrusion mechanism includes an electric push rod (13), a fixed seat (12), and a pressure block (11). The fixed seat (12) is installed on both sides of the first connecting flange (3). Each fixed seat (12) has a through hole. Each electric push rod (13) is installed on the outer side of the fixed seat (12). The piston rod of each electric push rod (13) passes through the through hole and is fixedly connected to the pressure block (11). One end of each pressure block (11) extends to the opposite surface of the crusher and presses the crusher inward.

3. The leak detection device for metal hoses according to claim 2, characterized in that: The crusher is divided into two halves (9) in the middle. Each half half (9) has a connecting groove on its open end, which faces the second connecting flange (2). The open end of the other half (9) protrudes to form a connecting part (16) opposite the connecting groove. The connecting part (16) is inserted into the connecting groove. Both the connecting part (16) and the connecting groove are in a "T" shape.

4. The leak detection device for metal hoses according to claim 1, characterized in that: Support plates are installed on the outside of the cylinder (4), and a bottom plate (14) is installed at the other end of the support plate.

5. The leak detection device for metal hoses according to claim 1, characterized in that: A pressure gauge (5) is installed on one side of the cylinder (4), and an air inlet pipe (6) connected to a metal hose (1) is installed on the other side of the cylinder (4). A valve (7) is installed on the air inlet pipe (6), and a hose is connected to the other end of the air inlet pipe (6). The other end of the hose is connected to an air pressure pump.

6. The leak detection device for metal hoses according to claim 3, characterized in that: Limiting holes (15) are provided on the outer side of the semi-ring (9), and limiting posts (17) are installed on the inner side of the pressure block (11) opposite to the limiting holes (15). The limiting posts (17) are inserted into the corresponding limiting holes (15).

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