Arc-angle rectangular corrugated pipe flexible joint with pressurization sealing structure

Abstract

The utility model discloses an arc-angle rectangular corrugated pipe flexible joint with a pressurized sealing structure, which comprises a flexible pipe body, a mounting valve body is arranged on the outer surface of one end of the flexible pipe body, and a buckling and inserting structure is arranged between the flexible pipe bodies. And the installation valve body and the hose body can be connected more stably through the buckling and inserting structure. According to the arc-angle rectangular corrugated pipe flexible joint with the pressurization sealing structure, when the flexible pipe body is installed and connected, the first buckling block and the second buckling block need to be buckled to the outer surface of the flexible pipe body, the first buckling block and the second buckling block are clamped, and then the flexible pipe body can be inserted into the insertion opening; the first buckle block and the second buckle block are inserted into the installation valve body, the hose body can be fixed more stably through clamping of the insertion opening, the first buckle block and the second buckle block, and the situation that the installation valve body is separated from the hose body due to external force and pulling force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows joints, in particular to an arc-angle rectangular bellows flexible joint with a pressurizing and sealing structure. Background Technique

[0002] A bellows is a pipe with a corrugated pipe wall, usually made of materials such as metal, plastic or rubber. The corrugated structure of the bellows is annular, spiral or other shapes. The corrugated design of the bellows affects the flexibility and pressure resistance of the bellows and has been widely used in many engineering fields and is widely used in pipeline systems, such as petrochemical industry, aerospace, automotive industry, building water supply and drainage, etc. However, in the laying of pipelines, the pipelines need to be connected. Content of the Utility Model

[0003] The purpose of the utility model is to provide an arc-angle rectangular bellows flexible joint with a pressurizing and sealing structure to solve the problem that the bellows is easy to separate and disconnect under external forces such as tension as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an arc-angle rectangular bellows flexible joint with a pressurizing and sealing structure, including a hose body. An installation valve body is arranged on the outer surface of one end of the hose body, and a rubber connecting pipe is attached to the side surface of one end of the installation valve body. A spring is arranged inside the rubber connecting pipe. Another installation valve body is arranged on one side of the rubber connecting pipe, and the installation valve body is designed in a concave shape. A coated steel wire mesh is embedded and installed on the outer surface of the rubber connecting pipe. A buckling and plugging structure is arranged between the hose bodies, and through the buckling and plugging structure, the connection between the installation valve body and the hose body can be made more stable.

[0005] Preferably, the buckling and plugging structure includes: a first buckle block, which is snap-fitted on the outer surface of the hose body. A second buckle block is snap-fitted on the outer surface of the hose body, and the second buckle block is inserted into the first buckle block. The first buckle block and the second buckle block are attached to the outer surface of the installation valve body, and an insertion port is fixedly installed on the outer surface of the installation valve body. One end of the insertion port is designed to be inclined, and the insertion port is attached to the outer surface of the hose body.

[0006] By adopting the above technical solution, through the insertion of the first buckle block and the second buckle block and the clamping of the hose body, the hose body can be inserted into the interior of the installation valve body. Then, with the cooperation of the insertion port, the insertion port can cooperate with the first buckle block and the second buckle block to clamp the hose body, so that the hose body can be fixed and will not be separated from the installation valve body due to external forces or other situations.

[0007] Preferably, a pressurized sealing structure is provided between the mounting valve body and the first buckle block and the second buckle block, so that the connection between the hose body and the mounting valve body is tighter through the pressurized sealing structure.

[0008] By adopting the above technical solution, the hose body and the mounting valve body can be connected more tightly.

[0009] Preferably, the pressurized sealing structure includes: a screw, which is fixedly mounted on one end side surface of the mounting valve body, and a snap-fitting clamping block is inserted into the interior of the mounting valve body, the outer surface of the snap-fitting clamping block is penetrated by the screw, and a first nut is threadedly mounted on the outer surface of the screw, and the first nut is fitted with the outer surface of the snap-fitting clamping block, and the outer surfaces of the first snap block and the second snap block are respectively fitted with the outer surface of the snap-fitting clamping block.

[0010] By adopting the above technical solution, the screw and the first nut are tightened, so that the buckling clamping block can move and push the first buckle block and the second buckle block, so that the first buckle block and the second buckle block can drive the hose body to move, and the hose body is fixed and connected to the mounting valve body.

[0011] Preferably, a sealing gasket is provided inside the mounting valve body, and the outer surface of the sealing gasket fits with the outer surface of the mounting valve body, the outer surface of the sealing gasket fits with the outer surface of the plug interface, and the outer surface of the sealing gasket fits with the outer surface of the hose body.

[0012] By adopting the above technical solution, as the hose body moves, the sealing gasket will move together, so that the sealing gasket can fit tightly with the inner surface of the mounting valve body, and cooperate with the inclined surface of the plug interface to make the sealing gasket and the hose body tightly connected, thereby improving the sealing performance of the hose body and the mounting valve body.

[0013] Preferably, a pressurized docking mechanism is provided between the mounting valve body and the rubber connecting tube, and the pressurized docking mechanism facilitates replacement of the rubber connecting tube after it is damaged and facilitates docking.

[0014] By adopting the above technical solution, the hose body can be mutually tightened and fixed during installation by tightening the threaded connecting rod, the second nut and the third nut.

[0015] Preferably, the pressure docking mechanism includes: a mounting plate, on the outer surface of which a rubber connecting pipe is installed through, and the rubber connecting pipe is in fit with the outer surface of the mounting plate, and the mounting plate is engaged with the rubber connecting pipe. A threaded connecting rod is inserted and installed on the outer surface of the mounting valve body and the mounting plate, and the outer surface of the threaded connecting rod is in fit with the outer surfaces of the mounting valve body and the mounting plate. A second nut is threadedly installed on the outer surface of the threaded connecting rod, and the outer surface of the second nut is in fit with the outer surface of the mounting plate. A third nut is threadedly installed on the outer surface of the threaded connecting rod, and the third nut is in fit with the outer surface of the mounting valve body, and the mounting valve body is in fit with the outer surface of the rubber connecting pipe.

[0016] By adopting the above technical solution, the rubber connecting pipe can be conveniently installed and assembled, and by tightening the second nut and the third nut, the mounting valve body and the mounting plate can be tightened to clamp the rubber connecting pipe, and it is convenient to replace the rubber connecting pipe when it is damaged.

[0017] Compared with the prior art, the beneficial effect of the present utility model is: the arc-angle rectangular corrugated pipe soft joint provided with a pressure sealing structure:

[0018] 1. When installing and connecting the hose body, it is necessary to first fasten the first buckle block and the second buckle block to the outer surface of the hose body and make the first buckle block and the second buckle block engage with each other. Subsequently, the hose body can be inserted into the insertion port, so that the first buckle block and the second buckle block are respectively inserted into the mounting valve body. Through the clamping of the insertion port with the first buckle block and the second buckle block, the hose body can be fixed more firmly and will not be separated from the mounting valve body due to external force and pulling force.

[0019] 2. After inserting the hose body into the insertion port, the buckling and pressing block can be inserted into the screw rod, and then the first nut can be screwed into the screw rod. As the first nut is tightened, it will push the buckling and pressing block to move, so that the first buckle block and the second buckle block can bring the hose body and the sealing gasket closer to the outer surface of the mounting valve body. By clamping the sealing gasket between the hose body and the mounting valve body, the hose body and the mounting valve body can be sealed.

[0020] 3. After installing the mounting valve body on the hose body, the rubber connecting tube, the coated steel wire mesh and the mounting plate can be placed between the mounting valve body, and then the threaded connecting rod can be inserted into the mounting valve body and the mounting plate, and during the insertion process, the second nut can be screwed into the threaded connecting rod, and then the third nut can be screwed into the two ends of the threaded connecting rod. After that, you only need to tighten the third nut to shorten the distance between the hose bodies. After the hose bodies are moved to a suitable position, you can tighten the second nut. By tightening the second nut and the threaded connecting rod, the mounting valve body and the mounting plate can clamp the rubber connecting tube, so that the rubber connecting tube and the mounting valve body can be sealed and connected. During installation, the hose bodies can be tightened against each other, and after the rubber connecting tube is damaged, the rubber connecting tube, the coated steel wire mesh and the mounting plate can be conveniently removed for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the hose body and the mounting valve body of the utility model;

[0022] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the hose body and the rubber connecting pipe of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the hose body and the mounting valve body of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the rubber connecting pipe and the coated steel wire mesh of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the installation valve body and the installation plate of the utility model;

[0026] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the first buckle block and the second buckle block of the utility model.

[0027] In the figure: 1. Hose body; 2. Installing valve body; 3. First buckle block; 4. Second buckle block; 5. Buckle-fitting clamping block; 6. Plug interface; 7. Screw; 8. First nut; 9. Rubber connecting pipe; 10. Coated wire mesh; 11. Mounting plate; 12. Threaded connecting rod; 13. Second nut; 14. Third nut; 15. Sealing gasket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Please refer to Figure 1-6 Figure 1-6 , the present utility model provides a technical solution: an arc-angle rectangular corrugated pipe flexible joint with a pressure sealing structure, which includes a hose body 1. An installation valve body 2 is arranged on the outer surface of one end of the hose body 1, and a rubber connecting pipe 9 is attached to the side surface of one end of the installation valve body 2. And a spring is arranged inside the rubber connecting pipe 9. Another installation valve body 2 is arranged on one side of the rubber connecting pipe 9, and the installation valve body 2 is designed in a concave shape. A coated steel wire mesh 10 is inlaid and installed on the outer surface of the rubber connecting pipe 9. A buckling and plugging structure is arranged between the hose bodies 1, and through the buckling and plugging structure, the connection between the installation valve body 2 and the hose body 1 can be made more stable.

[0030] The coated steel wire mesh 10 can protect the rubber connecting pipe 9, improve the service life of the rubber connecting pipe 9, and improve the compressive resistance of the rubber connecting pipe 9. The spring inside the rubber connecting pipe 9 can improve the supportability of the rubber connecting pipe 9.

[0031] The buckling and plugging structure includes: a first buckle block 3, the first buckle block 3 is snap-fitted on the outer surface of the hose body 1, and a second buckle block 4 is snap-fitted on the outer surface of the hose body 1. And the second buckle block 4 is inserted into the first buckle block 3. The first buckle block 3 and the second buckle block 4 are attached to the outer surface of the installation valve body 2. And an insertion port 6 is fixedly installed on the outer surface of the installation valve body 2. One end of the insertion port 6 is designed to be inclined, and the insertion port 6 is attached to the outer surface of the hose body 1.

[0032] When connecting the hose body 1, only need to buckle the first buckle block 3 and the second buckle block 4 to the outer surface of the hose body 1, and make the first buckle block 3 and the second buckle block 4 snap together. Then the hose body 1 can be inserted into the insertion port 6. The inclined design of the insertion port 6 can make it easier to insert the hose body 1. After insertion, the second buckle block 4 and the first buckle block 3 will be attached to the installation valve body 2. Then, by tightening the buckling pressing block 5, the first buckle block 3 and the second buckle block 4 can be fixed to the installation valve body 2, and the clamping of the first buckle block 3, the second buckle block 4 and the insertion port 6 can reduce the probability of the hose body 1 falling off and disengaging under the influence of external force.

[0033] A pressure sealing structure is provided between the mounting valve body 2, the first snap block 3 and the second snap block 4. Through the pressure sealing structure, the connection between the hose body 1 and the mounting valve body 2 is made tighter. The pressure sealing structure includes: a screw rod 7, which is fixedly installed on the side surface of one end of the mounting valve body 2. A snap-in pressing block 5 is inserted into the mounting valve body 2. The outer surface of the snap-in pressing block 5 is penetrated by the screw rod 7. A first nut 8 is threadedly installed on the outer surface of the screw rod 7, and the outer surface of the first nut 8 is in contact with the outer surface of the snap-in pressing block 5. The outer surfaces of the first snap block 3 and the second snap block 4 are respectively in contact with the outer surface of the snap-in pressing block 5.

[0034] After inserting the hose body 1, the first snap block 3 and the second snap block 4 into the mounting valve body 2, the snap-in pressing block 5 inserted through the hose body 1 can be pushed into the mounting valve body 2, and the snap-in pressing block 5 is inserted into the screw rod 7. Then, the first nut 8 can be tightened. By tightening the first nut 8, the snap-in pressing block 5 is driven to move, so that the snap-in pressing block 5 pushes the first snap block 3 and the second snap block 4 to move, enabling the hose body 1 to push the sealing gasket 15 into close contact with the mounting valve body 2, so as to connect and seal the mounting valve body 2 and the hose body 1.

[0035] A sealing gasket 15 is provided inside the mounting valve body 2, and the outer surface of the sealing gasket 15 is in contact with the outer surface of the mounting valve body 2, the outer surface of the insertion port 6, and the outer surface of the hose body 1.

[0036] When inserting the hose body 1 into the insertion port 6, it is necessary to first coat the outer surface of the insertion port 6 with lubricating oil, and then the hose body 1 can be easily connected to the insertion port 6. The inclined design of the insertion port 6 and the sealing gasket 15 make the connection between the sealing gasket 15, the hose body 1 and the insertion port 6 tighter, improving the sealing performance of the pipeline.

[0037] A pressure docking mechanism is provided between the mounting valve body 2 and the rubber connecting pipe 9. Through the pressure docking mechanism, it is convenient to replace the rubber connecting pipe 9 after it is damaged and to facilitate docking. The pressure docking mechanism includes: a mounting plate 11, the outer surface of which penetrates through the rubber connecting pipe 9, and the rubber connecting pipe 9 is in contact with the outer surface of the mounting plate 11 and is engaged with the mounting plate 11. A threaded connecting rod 12 is inserted through the outer surfaces of the mounting valve body 2 and the mounting plate 11. The outer surface of the threaded connecting rod 12 is in contact with the outer surfaces of the mounting valve body 2 and the mounting plate 11. A second nut 13 is threadedly installed on the outer surface of the threaded connecting rod 12, and the outer surface of the second nut 13 is in contact with the outer surface of the mounting plate 11. A third nut 14 is threadedly installed on the outer surface of the threaded connecting rod 12, and the third nut 14 is in contact with the outer surface of the mounting valve body 2. And the outer surfaces of the mounting valve body 2 and the rubber connecting pipe 9 are in contact with each other.

[0038] After the hose body 1 and the installation valve body 2 are assembled and fixed, the rubber connecting pipe 9, the wire mesh covering 10, and the mounting plate 11 can be placed between the installation valve bodies 2. Subsequently, the second nut 13 can be screwed onto the outer surface of the threaded connecting rod 12 and inserted between the installation valve body 2 and the mounting plate 11. Then, the third nut 14 can be screwed onto both ends of the threaded connecting rod 12. As the threaded connecting rod 12 is screwed, the hose bodies 1 will be pulled closer to each other. When the hose bodies 1 reach the appropriate positions, the second nut 13 can be tightened again. By tightening the second nut 13 and the third nut 14, the installation valve body 2 and the mounting plate 11 can be clamped to each other, enabling the rubber connecting pipe 9 to be clamped and sealed, facilitating the installation of the rubber connecting pipe 9 and the mounting plate 11, and allowing the rubber connecting pipe 9 to be conveniently removed and replaced after it is damaged.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An arc-angle rectangular bellows flexible joint with a pressurized sealing structure, comprising a hose body (1). An installation valve body (2) is arranged on the outer surface of one end of the hose body (1), and a rubber connecting pipe (9) is attached to the side surface of one end of the installation valve body (2). A spring is arranged inside the rubber connecting pipe (9). Another installation valve body (2) is arranged on one side of the rubber connecting pipe (9), and the installation valve body (2) is designed in a concave shape. A coated steel wire mesh (10) is inlaid and installed on the outer surface of the rubber connecting pipe (9), characterized in that: A buckling and plugging structure is arranged between the hose bodies (1), and the installation valve body (2) and the hose bodies (1) can be more firmly connected through the buckling and plugging structure.

2. The arc-angle rectangular corrugated pipe flexible joint with a pressurized sealing structure according to claim 1, characterized in that: The buckling and plugging structure includes: a first buckle block (3), the first buckle block (3) is snap-fitted on the outer surface of the hose body (1), and a second buckle block (4) is snap-fitted on the outer surface of the hose body (1), and the second buckle block (4) is inserted into the first buckle block (3). The first buckle block (3) and the second buckle block (4) are attached to the outer surface of the installation valve body (2), and an insertion port (6) is fixedly installed on the outer surface of the installation valve body (2). One end of the insertion port (6) is designed to be inclined, and the insertion port (6) is attached to the outer surface of the hose body (1).

3. A corner-arc rectangular bellows flexible joint with a pressurized sealing structure according to claim 1, characterized in that: A pressurizing and sealing structure is arranged between the installation valve body (2), the first buckle block (3) and the second buckle block (4), and the hose body (1) and the installation valve body (2) can be more tightly connected through the pressurizing and sealing structure.

4. A corner-arc rectangular bellows flexible joint with a pressure sealing structure according to claim 3, characterized in that: The pressurizing and sealing structure includes: a screw rod (7), the screw rod (7) is fixedly installed on the side surface of one end of the installation valve body (2), and a buckling and pressing block (5) is inserted into the installation valve body (2). The outer surface of the buckling and pressing block (5) is penetrated by the screw rod (7), and a first nut (8) is threadedly installed on the outer surface of the screw rod (7), and the first nut (8) is attached to the outer surface of the buckling and pressing block (5). The outer surfaces of the first buckle block (3) and the second buckle block (4) are respectively attached to the outer surface of the buckling and pressing block (5).

5. A corner arc rectangular bellows flexible joint with a pressurized sealing structure according to claim 1, characterized in that: A sealing gasket (15) is arranged inside the installation valve body (2), and the outer surface of the sealing gasket (15) is attached to the outer surface of the installation valve body (2). The outer surface of the sealing gasket (15) is attached to the outer surface of the insertion port (6). The outer surface of the sealing gasket (15) is attached to the outer surface of the hose body (1).

6. The arc-angle rectangular corrugated bellows flexible joint with a pressurizing and sealing structure according to claim 1, characterized in that: A pressurizing and docking mechanism is arranged between the installation valve body (2) and the rubber connecting pipe (9), and it is convenient to replace the rubber connecting pipe (9) after damage and to perform docking through the pressurizing and docking mechanism.

7. The flexible joint of arc-angle rectangular corrugated pipe with a pressure sealing structure according to claim 6, characterized in that: The pressurizing and docking mechanism includes: a mounting plate (11), the rubber connecting pipe (9) penetrates through the outer surface of the mounting plate (11), and the rubber connecting pipe (9) is attached to the outer surface of the mounting plate (11), and the mounting plate (11) is engaged with the rubber connecting pipe (9). A threaded connecting rod (12) is inserted through the outer surfaces of the installation valve body (2) and the mounting plate (11), and the outer surface of the threaded connecting rod (12) is attached to the outer surfaces of the installation valve body (2) and the mounting plate (11). A second nut (13) is threadedly installed on the outer surface of the threaded connecting rod (12), and the outer surface of the second nut (13) is attached to the outer surface of the mounting plate (11). A third nut (14) is threadedly installed on the outer surface of the threaded connecting rod (12), and the third nut (14) is attached to the outer surface of the installation valve body (2), and the outer surfaces of the installation valve body (2) and the rubber connecting pipe (9) are attached.

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