Multi-layer corrugated pipe and joint pipe thereof

Abstract

The utility model relates to the technical field of corrugated pipes, in particular to a multi-layer corrugated pipe and a joint pipe thereof, which comprises a joint pipe fitting and a corrugated outer pipe, a connecting ring is fixed on the surface of the joint pipe fitting, a threaded connecting pipe is sleeved on one side of the joint pipe fitting, a connecting mechanism is arranged between the joint pipe fitting and the threaded connecting pipe, and the corrugated outer pipe is sleeved on the connecting mechanism. A connecting mechanism is arranged in the corrugated outer pipe, an external thread ring and a fixing assembly are arranged in the connecting mechanism, a double-sealing mechanism is arranged on the surface of the connector pipe fitting and the surface of the connecting ring, the double-sealing mechanism is composed of a sealing component and a sealing ring, a reinforcing mechanism is arranged in the corrugated outer pipe, and a reinforcing component and an end ring are arranged in the reinforcing mechanism. The corrugated pipe is not prone to being damaged due to pressing, the service life of the corrugated pipe is prolonged, the sealing effect when the corrugated pipe is connected with a threaded connecting pipe is improved, and the convenience degree when the threaded connecting pipe is installed on the corrugated pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a multi-layer corrugated pipe and a joint pipe thereof. Background Art

[0002] Bellows refers to a pipe made of foldable corrugated sheets connected along the folding and expansion direction, mainly including metal bellows and plastic bellows. Plastic bellows plays an irreplaceable role in media transportation, power threading, machine tools, home appliances and other fields.

[0003] Due to the limited strength and hardness of plastic itself, the compressive strength of the bellows is poor. Once it is crushed by a heavy object or stepped on by someone accidentally, it will easily cause damage to the surface of the bellows, reducing the service life of the bellows; bellows are generally connected to the pipeline through multiple screws, and the connection is cumbersome, which reduces the convenience of connecting the bellows to the pipeline; bellows are often used to transport liquid media, so the joint pipe of the bellows is generally sealed and connected to the pipeline through a rubber ring, but the rubber ring is prone to aging and wear after a long time, which can easily affect the sealing effect when the bellows is connected to the pipeline. Utility Model Content

[0004] The utility model aims to provide a multi-layer corrugated pipe and a joint pipe thereof, so as to solve the problems in the above background technology that the service life of the corrugated pipe is easily affected during use, the convenience is low when connecting the pipeline, and the sealing effect is poor when connected with the pipeline.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint pipe of a multi-layer corrugated pipe, comprising a joint pipe fitting, a connecting ring is fixed on the surface of the joint pipe fitting, a threaded connecting pipe is sleeved on one side of the joint pipe fitting, a connecting mechanism is arranged between the joint pipe fitting and the threaded connecting pipe, the interior of the connecting mechanism includes an external threaded ring and a fixing assembly, a double sealing mechanism is arranged on the surface of the joint pipe fitting and the connecting ring, and the double sealing mechanism is composed of a sealing component and a sealing ring.

[0006] Preferably, an external threaded ring is rotatably connected to the surface of the connecting ring, the external threaded ring is threadedly fastened to one end of the threaded connecting pipe, and a fixing component is provided on one side of the external threaded ring.

[0007] Preferably, the fixing assembly consists of a threaded hole, a fixing block and a fastening bolt. A threaded hole is provided on the surface of the external threaded ring. A fixing block is fixed to one side of the connecting ring. A fastening bolt is threadedly connected to the surface of the fixing block. One end of the fastening bolt passes through the fixing block and is threadedly fastened to the threaded hole.

[0008] Preferably, one end of the joint pipe is wrapped with a sealing ring, the surface of the sealing ring is tightly fitted with the inner wall of the threaded connecting pipe, and a sealing component is adhered to the inner wall of the connecting ring.

[0009] Preferably, the interior of the sealing component includes a rubber pad, a stretch spring and an elastic sleeve, the surface of the connecting ring is adhered with the rubber pad, the surface of the rubber pad is fixed with the elastic sleeve, and the surface of the elastic sleeve is tightly fitted with the surface of the threaded connecting pipe.

[0010] Preferably, a stretch spring is fixed on the surface of the rubber pad, and one end of the stretch spring is fixedly connected to the inner wall of the elastic sleeve.

[0011] A multi-layer corrugated pipe comprises a corrugated outer pipe, wherein a reinforcing mechanism is arranged inside the corrugated outer pipe, and the reinforcing mechanism comprises a reinforcing member and an end ring inside.

[0012] Preferably, a reinforcing member is provided inside the corrugated outer tube, and an end ring is fixed between the reinforcing member and one end of the corrugated outer tube.

[0013] Preferably, the interior of the reinforcing component contains reinforcing wire and a corrugated inner tube, the interior of the corrugated outer tube is provided with a corrugated inner tube, the surface of the corrugated inner tube is respectively fixedly connected to the surfaces of the joint pipe fitting and the end ring, a reinforcing wire is spirally wound between the corrugated inner tube and the corrugated outer tube, and the two ends of the reinforcing wire are respectively fixedly connected to the surfaces of the joint pipe fitting and the end ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the multi-layer bellows and its joint pipe are not easily damaged by being pressed, the service life of the bellows is extended, the sealing effect when the bellows is connected to the threaded connection pipe is improved, and the convenience of installing the bellows to the threaded connection pipe is improved;

[0015] By providing a reinforcing mechanism, the strength of the corrugated outer tube is enhanced because the reinforcing wire is spirally wound between the corrugated inner tube and the corrugated outer tube. Under the action of the end ring, the corrugated outer tube and the corrugated inner tube are connected and fixed to realize the multi-layer reinforcement function of the corrugated tube, so that the corrugated tube is not easily damaged by being pressed, thereby extending the service life of the corrugated tube;

[0016] By providing a connection mechanism, when the threaded connection pipe is sleeved onto the surface of the joint pipe fitting, the threaded connection pipe is located inside the external thread ring, and then the external thread ring is rotated to fix the threaded connection pipe under the thread cooperation between the external thread ring and the threaded connection pipe, and then the fastening bolt is rotated to fasten the fastening bolt with the thread of the threaded hole, thereby pinning the external thread ring and preventing the external thread ring from rotating, so as to realize the function of the bellows being convenient for connecting the threaded connection pipe, thereby improving the convenience of the bellows when installing the threaded connection pipe;

[0017] By providing a double sealing mechanism, if the joint pipe fitting needs to be connected to the threaded pipe, the threaded pipe can be sleeved onto one end of the joint pipe fitting. At this time, the joint pipe fitting and the threaded pipe are sealed under the action of the sealing ring, and then the threaded pipe is pushed to squeeze the elastic sleeve, so that the threaded pipe and the elastic sleeve are tightly attached. At this time, the elastic sleeve is pushed under the action of the stretch spring on the surface of the rubber pad, so that the elastic sleeve is always tightly attached to the threaded pipe, and the joint pipe fitting and the threaded pipe are sealed for a second time to achieve the double sealing function of the bellows, thereby improving the sealing effect when the bellows is connected to the threaded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0021] Figure 4 It is an enlarged structural diagram of the connection mechanism of the utility model.

[0022] In the figure: 1. Joint pipe; 101. Connecting ring; 102. Threaded connecting pipe; 2. Corrugated outer pipe; 3. Connecting mechanism; 301. External threaded ring; 302. Fixing assembly; 3021. Threaded hole; 3022. Fixing block; 3023. Fastening bolt; 4. Reinforcing mechanism; 401. Reinforcing member; 4011. Reinforcing wire; 4012. Corrugated inner pipe; 402. End ring; 5. Double sealing mechanism; 501. Sealing component; 5011. Rubber pad; 5012. Extension spring; 5013. Elastic sleeve; 502. Sealing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] The utility model provides a multi-layer corrugated pipe joint pipe having a structure as follows Figure 1 and Figure 2 As shown, it comprises a joint pipe 1, a connection ring 101 is fixed on the surface of the joint pipe 1, and a threaded connection pipe 102 is sleeved on one side of the joint pipe 1.

[0025] Furthermore, if Figure 4 As shown, a connecting mechanism 3 is arranged between the joint pipe fitting 1 and the threaded connecting pipe 102, and the interior of the connecting mechanism 3 includes an external threaded ring 301 and a fixing component 302. The surface of the connecting ring 101 is rotatably connected with the external threaded ring 301, and the external threaded ring 301 is threadedly fastened to one end of the threaded connecting pipe 102. A fixing component 302 is arranged on one side of the external threaded ring 301, and the fixing component 302 consists of a threaded hole 3021, a fixing block 3022 and a fastening bolt 3023. A threaded hole 3021 is opened on the surface of the external threaded ring 301, and a fixing block 3022 is fixed to one side of the connecting ring 101. The surface of the fixing block 3022 is threadedly connected with a fastening bolt 3023, and one end of the fastening bolt 3023 passes through the fixing block 3022 and is threadedly fastened to the threaded hole 3021.

[0026] During use, when the threaded connecting pipe 102 is sleeved onto the surface of the joint pipe 1, the threaded connecting pipe 102 is located on the inner side of the external threaded ring 301, and then the external threaded ring 301 is rotated to fix the threaded connecting pipe 102 under the thread cooperation of the external threaded ring 301 and the threaded connecting pipe 102, and then the fastening bolt 3023 is rotated to fasten the fastening bolt 3023 and the threaded hole 3021, thereby pinning the external threaded ring 301 to prevent the external threaded ring 301 from rotating, so as to realize the function of the corrugated pipe to facilitate the connection of the threaded connecting pipe 102.

[0027] Furthermore, if Figure 3As shown, a double sealing mechanism 5 is provided on the surface of the joint pipe fitting 1 and the connecting ring 101, and the double sealing mechanism 5 is composed of a sealing component 501 and a sealing ring 502. One end of the joint pipe fitting 1 is wrapped with a sealing ring 502, and the surface of the sealing ring 502 is tightly fitted with the inner wall of the threaded connecting pipe 102. The inner wall of the connecting ring 101 is adhered with the sealing component 501, and the interior of the sealing component 501 includes a rubber pad 5011, a stretch spring 5012 and an elastic sleeve 5013. The surface of the connecting ring 101 is adhered with a rubber pad 5011, and the surface of the rubber pad 5011 is fixed with an elastic sleeve 5013. The surface of the elastic sleeve 5013 is tightly fitted with the surface of the threaded connecting pipe 102, and the surface of the rubber pad 5011 is fixed with a stretch spring 5012, and one end of the stretch spring 5012 is fixedly connected to the inner wall of the elastic sleeve 5013.

[0028] When in use, if it is necessary to connect the joint pipe fitting 1 with the threaded connecting pipe 102, the threaded connecting pipe 102 can be put onto one end of the joint pipe fitting 1. At this time, the joint pipe fitting 1 and the threaded connecting pipe 102 are sealed under the action of the sealing ring 502, and then the threaded connecting pipe 102 is pushed to make the threaded connecting pipe 102 squeeze the elastic sleeve 5013, and the threaded connecting pipe 102 and the elastic sleeve 5013 are tightly attached. At this time, the elastic sleeve 5013 is thrusted by the action of the stretch spring 5012 on the surface of the rubber pad 5011, so that the elastic sleeve 5013 is always tightly attached to the threaded connecting pipe 102, and the joint pipe fitting 1 and the threaded connecting pipe 102 are secondary sealed to achieve the double sealing function of the corrugated pipe.

[0029] The utility model also provides a multi-layer bellows structure such as Figure 2 As shown, it includes a corrugated outer tube 2, a reinforcing mechanism 4 is arranged inside the corrugated outer tube 2, the interior of the reinforcing mechanism 4 includes a reinforcing member 401 and an end ring 402, the interior of the corrugated outer tube 2 is provided with a reinforcing member 401, the reinforcing member 401 and one end of the corrugated outer tube 2 are fixed with an end ring 402, the interior of the reinforcing member 401 includes a reinforcing wire 4011 and a corrugated inner tube 4012, the interior of the corrugated outer tube 2 is provided with a corrugated inner tube 4012, the surfaces of the corrugated inner tube 4012 are respectively fixedly connected to the surfaces of the joint pipe fitting 1 and the end ring 402, a reinforcing wire 4011 is spirally wound between the corrugated inner tube 4012 and the corrugated outer tube 2, and the two ends of the reinforcing wire 4011 are respectively fixedly connected to the surfaces of the joint pipe fitting 1 and the end ring 402.

[0030] When in use, since the reinforcing wire 4011 is spirally wound between the corrugated inner tube 4012 and the corrugated outer tube 2, the strength of the corrugated outer tube 2 is strengthened, and the corrugated outer tube 2 and the corrugated inner tube 4012 are connected and fixed under the action of the end ring 402 to realize the multi-layer reinforcement function of the corrugated tube, so that the corrugated tube is not easily damaged due to compression.

[0031] Working principle: When in use, firstly, the strength of the corrugated outer tube 2 is strengthened because the reinforcing wire 4011 is spirally wound between the corrugated inner tube 4012 and the corrugated outer tube 2, and the corrugated outer tube 2 and the corrugated inner tube 4012 are connected and fixed under the action of the end ring 402 to realize the multi-layer reinforcement function of the corrugated tube, so that the corrugated tube is not easily damaged by being pressed, thereby extending the service life of the corrugated tube.

[0032] If it is necessary to connect the joint pipe fitting 1 with the threaded connecting pipe 102, the threaded connecting pipe 102 can be put onto one end of the joint pipe fitting 1. At this time, the joint pipe fitting 1 and the threaded connecting pipe 102 are sealed under the action of the sealing ring 502, and then the threaded connecting pipe 102 is pushed to make the threaded connecting pipe 102 squeeze the elastic sleeve 5013, and the threaded connecting pipe 102 and the elastic sleeve 5013 are tightly attached. At this time, the elastic sleeve 5013 is thrusted by the action of the stretch spring 5012 on the surface of the rubber pad 5011, so that the elastic sleeve 5013 is always tightly attached to the threaded connecting pipe 102, and the joint pipe fitting 1 and the threaded connecting pipe 102 are secondary sealed to realize the double sealing function of the bellows, thereby improving the sealing effect when the bellows is connected to the threaded connecting pipe 102.

[0033] When the threaded connecting pipe 102 is sleeved onto the surface of the joint pipe 1, the threaded connecting pipe 102 is located on the inner side of the external threaded ring 301, and then the external threaded ring 301 is rotated to fix the threaded connecting pipe 102 under the thread cooperation of the external threaded ring 301 and the threaded connecting pipe 102, and then the fastening bolt 3023 is rotated to fasten the fastening bolt 3023 and the threaded hole 3021, thereby pinning the external threaded ring 301 to prevent the external threaded ring 301 from rotating, so as to realize the function of the corrugated pipe to facilitate the connection with the threaded connecting pipe 102, thereby improving the convenience of the corrugated pipe when installing the threaded connecting pipe 102, and finally completing the use of the corrugated pipe.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A joint pipe of a multi-layer corrugated pipe, comprising a joint pipe fitting (1), characterized in that: A connecting ring (101) is fixed on the surface of the joint pipe (1); a threaded connecting pipe (102) is sleeved on one side of the joint pipe (1); a connecting mechanism (3) is provided between the joint pipe (1) and the threaded connecting pipe (102); the interior of the connecting mechanism (3) comprises an external threaded ring (301) and a fixing component (302); a double sealing mechanism (5) is provided on the surfaces of the joint pipe (1) and the connecting ring (101); the double sealing mechanism (5) consists of a sealing component (501) and a sealing ring (502).

2. The joint pipe of a multi-layer corrugated pipe according to claim 1, characterized in that: An external threaded ring (301) is rotatably connected to the surface of the connecting ring (101), the external threaded ring (301) is threadedly fastened to one end of the threaded connecting pipe (102), and a fixing component (302) is provided on one side of the external threaded ring (301).

3. The joint pipe of a multi-layer corrugated pipe according to claim 2, characterized in that: The fixing assembly (302) is composed of a threaded hole (3021), a fixing block (3022) and a fastening bolt (3023); the threaded hole (3021) is provided on the surface of the external threaded ring (301); a fixing block (3022) is fixed to one side of the connecting ring (101); a fastening bolt (3023) is threadedly connected to the surface of the fixing block (3022); one end of the fastening bolt (3023) passes through the fixing block (3022) and is threadedly fastened to the threaded hole (3021).

4. The joint pipe of a multi-layer corrugated pipe according to claim 1, characterized in that: One end of the joint pipe (1) is wrapped with a sealing ring (502), the surface of the sealing ring (502) is tightly fitted with the inner wall of the threaded connecting pipe (102), and the inner wall of the connecting ring (101) is adhered with a sealing component (501).

5. The joint pipe of a multi-layer corrugated pipe according to claim 4, characterized in that: The sealing component (501) contains a rubber pad (5011), a stretch spring (5012) and an elastic sleeve (5013) inside; the rubber pad (5011) is adhered to the surface of the connecting ring (101); the elastic sleeve (5013) is fixed to the surface of the rubber pad (5011); and the surface of the elastic sleeve (5013) is tightly fitted to the surface of the threaded connecting pipe (102).

6. The joint pipe of a multi-layer corrugated pipe according to claim 5, characterized in that: A stretch spring (5012) is fixed to the surface of the rubber pad (5011), and one end of the stretch spring (5012) is fixedly connected to the inner wall of the elastic sleeve (5013).

7. A multi-layer corrugated pipe, comprising a corrugated outer pipe (2) and a joint pipe of a multi-layer corrugated pipe according to any one of claims 1 to 6, characterized in that: A reinforcing mechanism (4) is provided inside the corrugated outer tube (2), and the reinforcing mechanism (4) includes a reinforcing component (401) and an end ring (402) inside.

8. The multi-layer corrugated tube according to claim 7, characterized in that: A reinforcing member (401) is provided inside the corrugated outer tube (2), and an end ring (402) is fixed between the reinforcing member (401) and one end of the corrugated outer tube (2).

9. A multi-layer corrugated tube according to claim 8, characterized in that: The reinforcing component (401) contains a reinforcing wire (4011) and a corrugated inner tube (4012) inside, the corrugated outer tube (2) is provided with a corrugated inner tube (4012) inside, the surface of the corrugated inner tube (4012) is fixedly connected to the surface of the joint pipe (1) and the end ring (402) respectively, the reinforcing wire (4011) is spirally wound between the corrugated inner tube (4012) and the corrugated outer tube (2), and the two ends of the reinforcing wire (4011) are fixedly connected to the surface of the joint pipe (1) and the end ring (402) respectively.

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