Metal hose convenient for butt joint

Abstract

The utility model relates to the technical field of metal hoses, in particular to a metal hose convenient to butt joint. Comprising a hose assembly, a butt joint assembly and a sealing assembly, the hose assembly comprises a hose body, a protective sleeve is arranged on the outer wall of the joint of the hose body and a first butt joint pipe, one end of a second flange is connected with a flange ring, the sealing assembly comprises a butt joint rod and a threaded sleeve pipe, and one end of the butt joint rod is connected with a sealing inner pipe. A mounting groove is formed in the inner side of the sealing inner pipe, an inner sealing ring is connected to the inner wall of the mounting groove, a sealing outer pipe is connected to one end of the threaded sleeve, and an outer sealing ring is connected to the inner wall of the sealing outer pipe. After the sealing inner pipe is inserted into the outer sealing rings, the outer wall of the peripheral face of the sealing inner pipe makes contact with and is attached to the inner walls of the outer sealing rings, meanwhile, the outer walls of the three inner sealing rings make contact with and are attached to the inner walls of the outer sealing rings, and then sealing of the connecting position of the sealing inner pipe and the sealing outer pipe is achieved through the inner sealing rings.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hoses, in particular to a metal hose which is easy to connect. Background Art

[0002] Metal hoses are important components in the connection pipelines of modern industrial equipment. Metal hoses are used as wire and cable protection tubes for wires, cables, automation instrument signals, and civilian shower hoses, with specifications ranging from 3mm to 150mm. Small-diameter metal hoses (inner diameter 3mm-25mm) are mainly used for sensor line protection of precision optical rulers and industrial sensor line protection.

[0003] Under the prior art, when metal hoses are connected and fixed, flanges are usually provided at both ends, which are then fixed by bolts. When performing the connection and fixing work, the flanges at the ends of the metal hoses are first docked and the threaded holes on the flanges are aligned. However, when relying on the flanges for docking, multiple seals on the connection cannot be achieved, which results in poor sealing of the metal hoses after docking, and leakage problems are prone to occur. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a metal hose that is easy to connect, so as to solve the problem that when relying on flanges for connection, it is impossible to achieve multiple seals on the connection points, which results in poor sealing of the metal hose after connection and prone to leakage. When the connecting rod is connected to the screw sleeve, the sealed inner tube is smoothly inserted into the outer sealing ring. The setting of the sealed outer tube is used to install and protect the outer sealing ring, and at the same time, it can provide protection for the sealed inner tube inserted into the outer sealing ring. The common setting of the outer sealing ring and the inner sealing ring is used to improve the sealing of the hose body after connection.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a metal hose that is easy to dock, comprising a hose assembly, a docking assembly, and a sealing assembly, wherein the hose assembly comprises a hose body, one end of the hose body is connected to a first docking tube, the outer wall of the connection between the hose body and the first docking tube is provided with a protective sleeve, the end of the hose body away from the first docking tube is connected to a second docking tube, the docking assembly comprises a first flange and a second flange, a flange groove is provided on the inner side of the first flange, a connecting hole is provided on the inner side of the first flange, a flange ring is connected to one end of the second flange, the sealing assembly comprises a docking rod and a spiral sleeve, the outer ring wall of the docking rod is provided with threads, one end of the docking rod is connected to a sealed inner tube, the inner side of the sealed inner tube is provided with an installation groove, the inner wall of the installation groove is connected to an inner sealing ring, one end of the spiral sleeve is connected to a sealed outer tube, and the inner wall of the sealed outer tube is connected to an outer sealing ring.

[0006] The beneficial effects of the utility model are as follows: when the docking rod is connected to the spiral sleeve, the sealed inner tube is smoothly inserted into the outer sealing ring. The setting of the sealed outer tube is used for installation and protection of the outer sealing ring, and at the same time, protection can be provided for the sealed inner tube inserted into the outer sealing ring. The common setting of the outer sealing ring and the inner sealing ring is used to improve the sealing performance of the hose main body after connection. When the two hose main bodies are docked, the docking rod is first inserted into the spiral sleeve, and then until the end of the docking rod away from the hose main body is in contact with the sealed outer tube, at this time, the docking rod completes the threaded connection with the spiral sleeve, and at the same time, the sealed inner tube is inserted into the outer sealing ring, and then through the connection of the docking rod and the spiral sleeve and the connection of the sealed inner tube and the outer sealing ring, the double connection of the two adjacent hose main bodies is realized, thereby ensuring the symmetrical stability and sealing performance of the two adjacent hose main bodies.

[0007] To ensure the safety of the hose body after docking:

[0008] As a further improvement of the above technical solution: a protective sleeve is provided on the outer wall of the connection between the hose body and the second butt joint, and each hose body is connected to two protective sleeves at the same time.

[0009] The beneficial effect of this improvement is that the protective sleeve is provided to protect the connection between the hose body and the first butt joint, and the connection between the hose body and the second butt joint, thereby ensuring the safety of the hose body in use after docking.

[0010] In order to improve the stability and sealing of the connection between the first flange and the second flange by inserting the flange ring into the flange groove:

[0011] As a further improvement of the above technical solution: the size of the flange ring matches the size of the flange groove, and the first flange is arranged on the outer wall of the first butt joint pipe.

[0012] The beneficial effect of this improvement is that when the second flange gradually approaches the first flange, the flange ring is gradually inserted into the flange groove, and then the stability and sealing of the connection between the first flange and the second flange are improved by inserting the flange ring into the flange groove.

[0013] In order to connect the first flange with the second flange, and thus achieve the docking of two adjacent hose bodies:

[0014] As a further improvement of the above technical solution: the second flange is arranged on the outer wall of the second butt joint pipe, and a connecting hole is opened on the inner side of the second flange.

[0015] The beneficial effect of this improvement is that after the docking rod is inserted into the spiral sleeve, as the docking rod is gradually inserted into the spiral sleeve, the second flange gradually approaches the first flange, and then when the second flange is in contact with the first flange for use, the first flange and the second flange are connected through the connecting hole using bolts, thereby achieving docking of two adjacent hose bodies.

[0016] In order to achieve double connection of two adjacent hose bodies, and thus ensure the symmetrical stability and sealing of the two adjacent hose bodies:

[0017] As a further improvement of the above technical solution: the length of the docking rod is the same as the length of the spiral sleeve, and one end of the docking rod is connected to the first docking tube.

[0018] The beneficial effect of this improvement is that when two hose bodies are to be docked, the docking rod is first inserted into the spiral sleeve, and then the end of the docking rod away from the hose body is in contact with the sealed outer tube. At this time, the docking rod completes the threaded connection with the spiral sleeve, and the sealed inner tube is inserted into the outer sealing ring. Then, through the connection between the docking rod and the spiral sleeve and the connection between the sealed inner tube and the outer sealing ring, a double connection of the two adjacent hose bodies is achieved, thereby ensuring the symmetrical stability and sealing of the two adjacent hose bodies.

[0019] In order to achieve the docking of two adjacent hose bodies through the connection of the docking rod and the thread:

[0020] As a further improvement of the above technical solution: the inner wall of the spiral sleeve is provided with threads, one end of the spiral sleeve is connected to the sealed outer tube, and the outer wall of the spiral sleeve is connected to the inner wall of the second butt joint pipe.

[0021] The beneficial effect of this improvement is that the spiral sleeve is provided to be connected with the docking rod, and then the docking of two adjacent hose bodies is achieved through the connection between the docking rod and the thread.

[0022] In order to achieve the sealing of the connection between the sealed inner tube and the sealed outer tube through the inner sealing ring:

[0023] As a further improvement of the above technical solution: the size of the sealed inner tube is the same as the length of the sealed outer tube, three sealed inner tubes are opened on the peripheral wall of the sealed inner tube, and the inner sealing ring and the outer sealing ring are rubber sealing rings.

[0024] The beneficial effect of this improvement is that when the sealed inner tube is inserted into the outer sealing ring, the outer wall of the circumference of the sealed inner tube contacts and fits with the inner wall of the outer sealing ring, and at the same time, the outer walls of the three inner sealing rings contact and fit with the inner wall of the outer sealing ring, thereby achieving sealing of the connection between the sealed inner tube and the sealed outer tube through the inner sealing ring.

[0025] In order to improve the sealing performance of the hose body after connection through the common setting of the outer sealing ring and the inner sealing ring:

[0026] As a further improvement of the above technical solution: the outer wall of the sealed outer tube is connected to the inner wall of the second butt joint tube, and the inner circle radius of the outer sealing ring is the same as the outer circle radius of the sealed inner tube.

[0027] The beneficial effect of this improvement is that when the docking rod is connected to the spiral sleeve, the sealed inner tube is smoothly inserted into the outer sealing ring. The setting of the sealed outer tube is used to install and protect the outer sealing ring, and at the same time, it can provide protection for the sealed inner tube inserted into the outer sealing ring. The joint setting of the outer sealing ring and the inner sealing ring is used to improve the sealing performance of the hose body after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the hose main body of the utility model when it is docked.

[0029] Figure 2 It is a structural schematic diagram of the hose main body of the utility model.

[0030] Figure 3 It is a structural schematic diagram of the docking rod of the utility model.

[0031] Figure 4 It is a schematic cross-sectional structural diagram of the second butt joint of the utility model.

[0032] Figure 5 It is a structural schematic diagram of the sealed outer tube of the utility model.

[0033] In the figure: 1. Hose assembly; 11. Hose body; 12. Protective cover; 13. First butt joint tube; 14. Second butt joint tube; 2. Docking assembly; 21. First flange; 22. Flange groove; 23. Connecting hole; 24. Second flange; 25. Flange ring; 3. Sealing assembly; 31. Docking rod; 32. Thread; 33. Screw sleeve; 34. Sealed inner tube; 35. Mounting groove; 36. Inner sealing ring; 37. Sealed outer tube; 38. Outer sealing ring. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0035] like Figure 1-5As shown, a metal hose that is easy to dock, including a hose assembly 1, a docking assembly 2, and a sealing assembly 3, the hose assembly 1 includes a hose body 11, one end of the hose body 11 is connected to a first docking tube 13, the outer wall of the connection between the hose body 11 and the first docking tube 13 is provided with a protective sleeve 12, the end of the hose body 11 away from the first docking tube 13 is connected to a second docking tube 14, the docking assembly 2 includes a first flange 21 and a second flange 24, the inner side of the first flange 21 is provided with a flange groove 22, the inner side of the first flange 21 is provided with a connecting hole 23, one end of the second flange 24 is connected There is a flange ring 25, the sealing assembly 3 includes a docking rod 31 and a spiral sleeve 33, the outer wall of the docking rod 31 is provided with a thread 32, one end of the docking rod 31 is connected to a sealed inner tube 34, the inner side of the sealed inner tube 34 is provided with a mounting groove 35, the inner wall of the mounting groove 35 is connected to an inner sealing ring 36, one end of the spiral sleeve 33 is connected to a sealed outer tube 37, the inner wall of the sealed outer tube 37 is connected to an outer sealing ring 38, the outer wall of the connection between the hose body 11 and the second docking tube 14 is provided with a protective sleeve 12, and each hose body 11 is connected to two protective sleeves 12 at the same time; through the protective sleeve 12 The arrangement is used to protect the connection between the hose body 11 and the first butt joint 13, and to protect the connection between the hose body 11 and the second butt joint 14, so as to ensure the safety of the hose body 11 after docking. The size of the flange ring 25 matches the size of the flange groove 22. The first flange 21 is arranged on the outer wall of the first butt joint 13; when the second flange 24 gradually approaches the first flange 21, the flange ring 25 is gradually inserted into the flange groove 22, and then the stability and sealing of the connection between the first flange 21 and the second flange 24 are improved by inserting the flange ring 25 into the flange groove 22. The second flange 24 is arranged on the outer wall of the second butt joint pipe 14, and a connecting hole 23 is opened on the inner side of the second flange 24; after the butt joint rod 31 is inserted into the screw sleeve 33, as the butt joint rod 31 is gradually inserted into the screw sleeve 33, the second flange 24 gradually approaches the first flange 21, and then when the second flange 24 is in contact with the first flange 21 for use, the first flange 21 and the second flange 24 are connected by bolts through the connecting hole 23, thereby achieving the butt joint of two adjacent hose bodies 11, the length of the butt joint rod 31 is the same as the length of the screw sleeve 33, and one end of the butt joint rod 31 is connected to the first butt joint pipe 13;When two hose bodies 11 are to be butt-jointed, the butt-joint rod 31 is first inserted into the spiral sleeve 33, and then the end of the butt-joint rod 31 away from the hose body 11 is in contact with the sealing outer tube 37. At this time, the butt-joint rod 31 is threadedly connected to the spiral sleeve 33, and the sealing inner tube 34 is inserted into the outer sealing ring 38. Then, through the connection between the butt-joint rod 31 and the spiral sleeve 33 and the connection between the sealing inner tube 34 and the outer sealing ring 38, the double connection of the two adjacent hose bodies 11 is realized, thereby ensuring the adjacent The two hose bodies 11 are symmetrically stable and sealed. The inner wall of the spiral sleeve 33 is provided with a thread 32. One end of the spiral sleeve 33 is connected to the sealed outer tube 37. The outer wall of the spiral sleeve 33 is connected to the inner wall of the second butt joint pipe 14. The spiral sleeve 33 is provided to connect with the butt joint rod 31, and then the butt joint of the two adjacent hose bodies 11 is achieved through the connection between the butt joint rod 31 and the thread 32. The size of the sealed inner tube 34 is the same as the length of the sealed outer tube 37. The circumferential wall of the sealed inner tube 34 is provided with three sealed inner tubes 34, and the inner sealing ring 36 and the outer sealing ring 38 are rubber sealing rings; when the sealed inner tube 34 is inserted into the outer sealing ring 38, the outer wall of the circumferential surface of the sealed inner tube 34 contacts and fits with the inner wall of the outer sealing ring 38, and at the same time, the outer walls of the three inner sealing rings 36 contact and fit with the inner wall of the outer sealing ring 38, and then the inner sealing ring 36 is used to seal the connection between the sealed inner tube 34 and the sealed outer tube 37, and the outer wall of the sealed outer tube 37 contacts and fits with the second butt joint 1 4, the inner circle radius of the outer sealing ring 38 is the same as the outer circle radius of the sealing inner tube 34; when the docking rod 31 is connected to the spiral sleeve 33, the sealing inner tube 34 is smoothly inserted into the outer sealing ring 38, and the setting of the sealing outer tube 37 is used to install and protect the outer sealing ring 38, and at the same time, it can provide protection for the sealing inner tube 34 inserted into the outer sealing ring 38, and the joint setting of the outer sealing ring 38 and the inner sealing ring 36 is used to improve the sealing performance of the hose body 11 after connection. ;

[0036] The working principle of the utility model is as follows: when the two hose bodies 11 are connected, the connecting rod 31 is first inserted into the spiral sleeve 33, and then the end of the connecting rod 31 away from the hose body 11 is in contact with the sealing outer tube 37. At this time, the connecting rod 31 completes the threaded connection with the spiral sleeve 33, and the sealing inner tube 34 is inserted into the outer sealing ring 38. The setting of the sealing outer tube 37 is used to install and protect the outer sealing ring 38, and at the same time, it can provide protection for the sealing inner tube 34 inserted into the outer sealing ring 38. The common setting of the sealing ring 36 is used to improve the sealing performance of the hose body 11 after the connection. When the sealing inner tube 34 is inserted into the outer sealing ring 38, the outer wall of the circumference of the sealing inner tube 34 is in contact with the inner wall of the outer sealing ring 38, and the outer walls of the three inner sealing rings 36 are in contact with the inner wall of the outer sealing ring 38, so that the inner sealing ring 36 can seal the connection between the sealing inner tube 34 and the sealing outer tube 37. The setting of the screw sleeve 33 is used to connect with the docking rod 31, and then the connection of the two adjacent hose bodies 11 is realized through the connection between the docking rod 31 and the thread 32. The connection between the butt joint rod 31 and the spiral sleeve 33 and the connection between the sealing inner tube 34 and the outer sealing ring 38 realizes the double connection of the two adjacent hose bodies 11, thereby ensuring the symmetrical stability and sealing of the two adjacent hose bodies 11. After the butt joint rod 31 is inserted into the spiral sleeve 33, as the butt joint rod 31 is gradually inserted into the spiral sleeve 33, the second flange 24 gradually approaches the first flange 21. Then, when the second flange 24 is in contact with the first flange 21 and is used, the first flange 21 is connected to the second flange 24 through the connecting hole 23 using bolts. The second flange 24 is connected to the first flange 21, thereby realizing the docking of two adjacent hose bodies 11. When the second flange 24 gradually approaches the first flange 21, the flange ring 25 is gradually inserted into the flange groove 22, thereby improving the stability and sealing of the connection between the first flange 21 and the second flange 24 by inserting the flange ring 25 into the flange groove 22. The protective sleeve 12 is provided to protect the connection between the hose body 11 and the first butt joint 13, and to protect the connection between the hose body 11 and the second butt joint 14, thereby ensuring the safety of the hose body 11 after docking.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A metal hose that is easy to dock, comprising a hose assembly (1), a docking assembly (2), and a sealing assembly (3), wherein the hose assembly (1) comprises a hose body (11), and is characterized in that: One end of the hose body (11) is connected to a first butt joint tube (13); a protective sleeve (12) is provided on the outer wall of the connection between the hose body (11) and the first butt joint tube (13); one end of the hose body (11) away from the first butt joint tube (13) is connected to a second butt joint tube (14); the butt joint assembly (2) comprises a first flange (21) and a second flange (24); a flange groove (22) is provided on the inner side of the first flange (21); a connecting hole (23) is provided on the inner side of the second flange (24); ) is connected to a flange ring (25), the sealing assembly (3) comprises a docking rod (31) and a screw sleeve (33), the outer wall of the docking rod (31) is provided with a thread (32), one end of the docking rod (31) is connected to a sealing inner tube (34), the inner side of the sealing inner tube (34) is provided with a mounting groove (35), the inner wall of the mounting groove (35) is connected to an inner sealing ring (36), one end of the screw sleeve (33) is connected to a sealing outer tube (37), the inner wall of the sealing outer tube (37) is connected to an outer sealing ring (38).

2. A metal hose that is easy to connect according to claim 1, characterized in that: A protective sleeve (12) is provided on the outer wall of the connection between the hose body (11) and the second butt joint (14), and each hose body (11) is connected to two protective sleeves (12) at the same time.

3. The metal hose that is easy to connect according to claim 1, characterized in that: The size of the flange ring (25) matches the size of the flange groove (22), and the first flange (21) is arranged on the outer wall of the first butt joint pipe (13).

4. The metal hose that is easy to connect according to claim 1, characterized in that: The second flange (24) is arranged on the outer wall of the second butt joint (14), and a connecting hole (23) is opened on the inner side of the second flange (24).

5. The metal hose that is easy to connect according to claim 1, characterized in that: The length of the docking rod (31) is the same as that of the screw sleeve (33), and one end of the docking rod (31) is connected to the first docking tube (13).

6. The metal hose that is easy to connect according to claim 1, characterized in that: The inner wall of the spiral sleeve (33) is provided with a thread (32), one end of the spiral sleeve (33) is connected to a sealed outer tube (37), and the outer wall of the spiral sleeve (33) is connected to the inner wall of the second butt joint tube (14).

7. The metal hose that is easy to connect according to claim 1, characterized in that: The size of the sealed inner tube (34) is the same as the length of the sealed outer tube (37). The peripheral wall of the sealed inner tube (34) is provided with three sealed inner tubes (34). The inner sealing ring (36) and the outer sealing ring (38) are rubber sealing rings.

8. The metal hose that is easy to connect according to claim 1, characterized in that: The outer wall of the sealed outer tube (37) is connected to the inner wall of the second butt joint tube (14), and the inner radius of the outer sealing ring (38) is the same as the outer radius of the sealed inner tube (34).

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