CN110925502B

CN110925502B - Metal hose with good installation tightness

Info

Publication number: CN110925502B
Application number: CN201911269001.5A
Authority: CN
Inventors: 赵兴; 赵景尧; 赵屹嘉
Original assignee: Tengzhou Huazheng Soft Joint Co ltd
Current assignee: Tengzhou Huazheng Soft Joint Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2022-11-01
Anticipated expiration: 2039-12-11
Also published as: CN110925502A

Abstract

The invention provides a metal hose with good installation tightness. The metal hose with good installation sealing performance comprises a hose assembly, a net cover assembly and two joint assemblies, wherein the net cover assembly is sleeved on the outer surface of the hose assembly, the joint assemblies are respectively sleeved at two ends of the hose assembly and can be detachably connected with two ends of the net cover assembly in a sealing mode, and two ends of the hose assembly are connected with the two joint assemblies in a clamping mode. The metal hose with good installation and sealing performance comprises a hose assembly, a net sleeve assembly and a connector assembly, wherein the net sleeve assembly is sleeved on the outer surface of the hose assembly to protect the hose assembly, the connector assembly is detachably and hermetically connected with the net sleeve assembly and clamped with the hose assembly, the connector assembly can be fixed with other pipelines, the hose assembly is used for conveying media, the hose assembly, the net sleeve assembly and the connector assembly are fixed in a clamping and detachable fixing mode, and the fixed sealing performance is good.

Description

Metal hose with good installation tightness

Technical Field

The invention relates to the field of metal hoses, in particular to a metal hose with good installation tightness.

Background

The traditional mode of connecting gas appliances such as liquefied petroleum gas cylinder, gas pipe or gas-cooker does: the rubber tube is connected with the lead wire and the lead wire is tightly twisted at the two ends of the rubber tube to prevent the lead wire from falling off; this connection has a number of drawbacks: the rubber tube is inconvenient to install and replace, is easy to block a gas path in a bent state, has poor corrosion resistance, is easy to age, has short service life, is easy to leak gas, and can cause accidents caused by the leakage of various kinds of coal gas and fuel gas. In order to solve the safe and reliable connection problem of the gas pipeline, the corrugated metal pipe is adopted as a main body in China successively, the corrugated metal pipe has certain flexibility, can be bent without bending, is convenient and reliable in threaded connection, can thoroughly avoid gas leakage and gas blockage, thereby reducing the occurrence of gas leakage accidents to a great extent and having a good practical effect. The joint part of the gas end used at present also adopts a matched threaded joint device, but the parts are more and smaller, the installation is inconvenient, and once some part is lacked, great potential safety hazard exists.

The metal hose is one of main parts for equipment installation and connection between components, and has the characteristics of good flexibility, high temperature resistance, corrosion resistance and higher pressure bearing; therefore, the method is widely applied to aerospace, machinery manufacturing, petrochemical industry, electric power, metallurgy, building industry and the like.

The metal hose is generally composed of stainless steel corrugated pipe, net sleeve, joint and other parts, wherein the joint comprises a threaded joint and a flange joint, and the joint can be a fixed type joint or a loop type joint. The existing metal hose production process generally adopts the steps that a corrugated pipe, a net sleeve and a joint are respectively welded and fixed with one another; the other connection mode is that the two ends of the corrugated pipe are firstly welded with the connecting pipe, then the net sleeve is sleeved at the two ends of the corrugated pipe, and the net sleeve is pressed on the connecting pipe for welding.

The production mode of the metal hose can be realized through a plurality of welding processes, and due to the fact that a large amount of heat is generated by welding and the difference between the wall thickness and the material of each part, the shape of a welding part is changed and the thermal stress is concentrated, the structure of a metal material is changed, and the mechanical strength of a product is reduced; the existing metal hose has short service life, complex welding procedure, low production efficiency and high cost, and is not suitable for mass production.

Therefore, the invention provides the metal hose with good installation tightness to solve the problems, the invention can realize the quick installation and disassembly of each part of the metal hose, simultaneously ensure the tightness, and the parts can be used for multiple times, reduce the use cost and have simple installation steps.

Disclosure of Invention

The invention provides a metal hose with good installation tightness, which solves the problems in the background technology.

In order to solve the technical problems, the metal hose with good installation sealing performance comprises a hose assembly, a net sleeve assembly and two joint assemblies, wherein the net sleeve assembly is sleeved on the outer surface of the hose assembly, the two joint assemblies are respectively sleeved at two ends of the hose assembly and detachably and hermetically connected with two ends of the net sleeve assembly, and two ends of the hose assembly are clamped with the two joint assemblies.

Preferably, the hose assembly comprises a hose body, connecting pipes are fixedly mounted at two ends of the hose body, the hose body and the two connecting pipes are of an integrated structure, the net cover assembly is sleeved outside the hose body, and the joint assemblies are respectively sleeved on the two connecting pipes, connected with the corresponding connecting pipes in a clamping mode and connected with two ends of the net cover assembly in a detachable and sealed mode.

Preferably, the net cover assembly comprises a net cover body, sealing joints are welded at two ends of the net cover body, one part of each of the two ends of the net cover body is located inside the corresponding sealing joint, the net cover body is sleeved outside the hose body, and the joint assemblies are respectively connected with the corresponding sealing joints in a detachable and sealed mode.

Preferably, the joint assembly comprises a sealing connection seat, the two ends of the sealing connection seat are provided with openings, the sizes of the openings are different, a joint pipe is fixedly arranged at one end of the small opening of the sealing connection seat, the sealing connection seat and the joint pipe are of an integral structure, one part of the sealing connection seat is located inside the sealing connection seat and is in threaded connection with the sealing connection seat, an annular clamping groove communicated with the inside of the sealing connection seat is formed in the joint pipe, and one end of the connecting pipe abuts against the inside of the annular clamping groove and is attached to the inner wall of the joint pipe.

Preferably, the outer surface of the sealing connecting seat is provided with an internal thread I, the inner wall of the sealing joint is provided with an external thread, and the sealing connecting seat is in threaded connection with the sealing joint through the matching of the internal thread I and the external thread.

Preferably, a rubber sealing ring is arranged at the connecting position of the sealing connecting seat and the joint pipe, and the inner wall of the rubber sealing ring is attached to the outer wall of the connecting pipe.

Preferably, the inner wall of the joint pipe is provided with an internal thread II.

Compared with the related art, the metal hose with good installation tightness provided by the invention has the following beneficial effects:

1. the structure of the invention comprises a hose assembly, a net sleeve assembly and a connector assembly, wherein the net sleeve assembly is sleeved on the outer surface of the hose assembly to protect the hose assembly, the connector assembly is detachably and hermetically connected with the net sleeve assembly and clamped with the hose assembly, the connector assembly can be fixed with other pipelines, the hose assembly is used for conveying media, the hose assembly, the net sleeve assembly and the connector assembly are fixed in a clamping and detachable fixing mode, and meanwhile, the fixed tightness is good.

2. On the basis of keeping the original structure of the hose body, the hose body is the existing stainless steel corrugated pipe, the design of the connecting pipe is added, the position of the joint assembly can be provided, the connecting pipe and the joint assembly are clamped and fixed, a sealing structure can be formed, the sealing performance of the metal hose is improved, the joint assembly and the net cover assembly can be assembled together after being detachably and hermetically connected, and meanwhile, the sealing performance of the metal hose is further improved.

3. The hose body can be fixed only by the mutual matching of the joint component and the net cover component, the fixed metal hose has excellent sealing performance, the leakage phenomenon cannot occur in normal use, and meanwhile, the fixing structure and the fixing step are simple, and the hose body is convenient to disassemble in the same way, so that the hose has higher use value.

Drawings

FIG. 1 is a perspective sectional view of the present invention;

FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is a perspective sectional view of a netting assembly of the present invention;

FIG. 4 is a perspective sectional view of the joint assembly of the present invention;

fig. 5 is a perspective view of the overall structure of the present invention.

Reference numbers in the figures: 1. a hose assembly; 101. a hose body; 102. a connecting pipe; 2. a mesh component; 201. a mesh sleeve body; 202. sealing the joint; 203. an external thread; 3. a joint assembly; 301. sealing the connecting seat; 302. a joint pipe; 303. an annular neck; 304. a rubber seal ring; 305. an internal thread I; 306. and an internal thread II.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a perspective sectional view of the present invention; FIG. 2 is an enlarged view of the structure of FIG. 1 at A according to the present invention; FIG. 3 is a perspective sectional view of a netting assembly of the present invention; FIG. 4 is a perspective sectional view of the joint assembly of the present invention; fig. 5 is a perspective view of the overall structure of the present invention. The utility model provides a metal collapsible tube that installation leakproofness is good, includes hose assembly 1, net cover subassembly 2 and two joint Assembly 3, and the surface at hose assembly 1 is established to net cover subassembly 2 cover, and two joint Assembly 3 overlap respectively and establish the both ends of hose assembly 1 and can dismantle sealing connection with the both ends of net cover subassembly 2, hose assembly 1's both ends and two joint Assembly 3 joint.

In the embodiment, the structure of the invention comprises a hose assembly 1, a net sleeve assembly 2 and a connector assembly 3, wherein the net sleeve assembly 2 is sleeved on the outer surface of the hose assembly 1 to protect the hose assembly, the connector assembly 3 is detachably and hermetically connected with the net sleeve assembly 2 and is clamped with the hose assembly 1, the connector assembly 3 can be fixed with other pipelines, the hose assembly 1 is used for conveying a medium, the hose assembly 1, the net sleeve assembly 2 and the connector assembly 3 are fixed in a clamping and detachable fixing mode, and meanwhile, the fixed sealing performance is good.

Specifically, hose assembly 1 includes hose body 101, and the equal fixed mounting in both ends of hose body 101 has connecting pipe 102, and hose body 101 and two connecting pipes 102 structure as an organic whole, and the outside at hose body 101 is established to the cover of net cover subassembly 2, and two joint subassemblies 3 overlap respectively and establish on two connecting pipes 102 and with corresponding connecting pipe 102 joint and can dismantle sealing connection with the both ends of net cover subassembly 2.

In this embodiment, on the basis of maintaining the original structure of the hose body 101, the hose body 101 is an existing stainless steel corrugated pipe, and the design of the connecting pipe 102 is added, so that a position can be provided for the joint assembly 3, wherein the connecting pipe 102 and the metal corrugated pipe are of an integrated structure made of the same material, so that the structural strength is high, the connecting pipe 102 and the joint assembly 3 are clamped and fixed, a sealing structure can be formed, the sealing performance of the metal hose is improved, after the joint assembly 3 is detachably and hermetically connected with the net cover assembly 2, the joint assembly 3 and the net cover assembly 2 can be assembled together, the sealing performance of the metal hose is further improved, at the moment, the net cover assembly 2 can play an external protection role on the hose body 101, the service life of the hose body 101 is prolonged, and the two joint assemblies 3 are used for being communicated with other pipelines.

Specifically, the net cover assembly 2 comprises a net cover body 201, sealing joints 202 are welded at two ends of the net cover body 201, a part of two ends of the net cover body 201 are located inside the corresponding sealing joints 202, the net cover body 201 is sleeved outside the hose body 101, and the two joint assemblies 3 are respectively connected with the corresponding sealing joints 202 in a detachable and sealing mode.

In this embodiment, the direct cover of net cover body 201 is established in the outside of hose body 101, wherein net cover body 201 not only shares metal collapsible tube at the axial, radially to the dead load, still can guarantee metal collapsible tube work safe and reliable under the condition that fluid flows along the pipeline and produces the pulsation effect, simultaneously, can also guarantee that the corrugated part of hose body 101 directly receives relative friction, the mechanical damage in the aspect of striking etc., consequently, great improvement hose body 101's life, improve metal collapsible tube's life promptly, wherein two seal joint 202 and net cover body 201's both ends carry out welded fastening, guarantee structural strength and leakproofness, two seal joint 202 play can dismantle fixed effect with connector assembly 3 simultaneously, fix hose assembly 1's structure with connector assembly 3 cooperation simultaneously.

Specifically, joint assembly 3 includes sealed connecting seat 301, sealed connecting seat 301's both ends are offered opening and opening size nonconformity, sealed connecting seat 301 little open-ended one end fixed mounting has joint pipe 302, sealed connecting seat 301 and joint pipe 302 structure as an organic whole, a part of sealed connecting seat 301 is located sealed joint 202's inside and rather than threaded connection, ring groove 303 that is linked together with sealed connecting seat 301 inside is offered to joint pipe 302's inside, the one end of connecting pipe 102 is contradicted in ring groove 303's inside and is laminated mutually with joint pipe 302's inner wall.

In this embodiment, after the mesh sleeve body 201 is sleeved on the surface of the hose body 101, at this time, the two sealing joints 202 are located at two ends of the hose body 101, and both the two connecting pipes 102 are located at the positions, at this time, the sealing connecting seat 301 is aligned with the inside of the sealing joint 202 and inserted into, and at the same time, the sealing connecting seat 301 starts to rotate, and the sealing connecting seat 301 and the sealing joint 202 are in threaded connection, at this time, the connecting pipe 102 just enters the inside of the annular clamping groove 303, and the connecting pipe extends into the inside of the sealing joint 202 along with the continuous rotation of the sealing connecting seat 301, so the connecting pipe 102 also continuously enters the inside of the annular clamping groove 303 and finally abuts against the annular clamping groove 303, and simultaneously, the inner wall of the annular clamping groove 303 and the inner and outer walls of the connecting pipe 102 are both attached to each other, so as to form a sealing line, after the sealing connecting seat 301 and the sealing joint 202 are in threaded connection, a second sealing line can be formed, so that the sealing performance is ensured, after the two joint assemblies 3 are fixed with the corresponding mesh sleeve assemblies 2, the hose body 101 can be assembled and fixed in a position through the connecting pipe 102.

Specifically, internal thread I305 is seted up to sealing connection seat 301 surface, and external screw thread 203 has been seted up to the inner wall of sealing joint 202, and sealing connection seat 301 passes through the cooperation of internal thread I305 and external screw thread 203 and sealing joint 202 threaded connection.

In this embodiment, seal connection seat 301 and seal joint 202's threaded connection has been realized, and simultaneously with seal connection seat 301's surface design into internal thread i 305, it is rotatory to make things convenient for seal connection seat 301 to enter into seal joint 202's inside back.

Specifically, a rubber sealing ring 304 is arranged at a connection position of the sealing connection seat 301 and the joint pipe 302, and an inner wall of the rubber sealing ring 304 is attached to an outer wall of the connection pipe 102.

In this embodiment, rubber seal 304's position is located connecting pipe 102 and ring groove 303 contact site's end department just in time, can further improve metal collapsible tube's leakproofness through rubber seal 304, avoids the medium of hose body 101 circulation to appear spilling over the phenomenon, consequently the utility model discloses a hose assembly 1, net cover subassembly 2 and two joint Assembly 3's fixed work is accomplished to the mode of screw thread fixed fit joint, compares with current welding, has good leakproofness and joint strength equally, and it is simple still to have installation steps simultaneously, is fit for batch production, the simple effectual advantage of process.

Specifically, the inner wall of the joint pipe 302 is provided with an internal thread II 306.

In this embodiment, the internal thread ii 306 is used for communicating with other pipelines, and during a specific actual installation process, a flange may be welded to the outer wall of the joint pipe 302 to be sequentially and fixedly communicated with other pipelines.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a metal collapsible tube that installation leakproofness is good which characterized in that: comprises a hose assembly (1), a net cover assembly (2) and two joint assemblies (3), wherein the net cover assembly (2) is sleeved on the outer surface of the hose assembly (1), two joint assemblies (3) are respectively sleeved at two ends of the hose assembly (1) and can be detachably and hermetically connected with two ends of the net cover assembly (2), two ends of the hose assembly (1) are clamped with the two joint assemblies (3), the hose assembly (1) comprises a hose body (101), two ends of the hose body (101) are respectively and fixedly provided with connecting pipes (102), the hose body (101) and the two connecting pipes (102) are of an integral structure, the net cover assembly (2) is sleeved outside the hose body (101), the two joint assemblies (3) are respectively sleeved on the two connecting pipes (102) and are clamped with the corresponding connecting pipes (102) and can be detachably and hermetically connected with two ends of the net cover assembly (2), the net cover assembly (2) comprises a net cover body (201), two ends of the net cover body (201) are respectively welded with sealing joints (202), and two ends of the net cover body (201) are respectively welded with the sealing joints (202), and the sealing joints (201) are respectively and the two ends of the net cover assembly (201) are respectively and the sealing joints (201) are respectively corresponding to be detachably and the two ends of the sealing assembly (201, the joint component (3) comprises a sealing connecting seat (301), openings and inconsistent opening sizes are formed in the two ends of the sealing connecting seat (301), a joint pipe (302) is fixedly installed at one end of the small opening of the sealing connecting seat (301), the sealing connecting seat (301) and the joint pipe (302) are of an integral structure, one part of the sealing connecting seat (301) is located inside the sealing joint (202) and is in threaded connection with the sealing joint pipe, an annular clamping groove (303) communicated with the inside of the sealing connecting seat (301) is formed in the joint pipe (302), one end of the connecting pipe (102) is abutted to the inside of the annular clamping groove (303) and is attached to the inner wall of the joint pipe (302), an internal thread I (305) is formed in the outer surface of the sealing connecting seat (301), an external thread (203) is formed in the inner wall of the sealing joint (202), the sealing connecting seat (301) is in threaded connection with the sealing joint (202) through matching of the internal thread I (305) and the external thread (203), a rubber sealing ring (304) is arranged at the connecting position of the sealing connecting seat (301) and the outer wall of the rubber sealing joint pipe (302), and the connecting pipe (102) is attached to the inner wall of the rubber sealing ring (102).

2. The installation of a metal hose with good sealing performance as claimed in claim 1, wherein the inner wall of the joint pipe (302) is provided with an internal thread II (306).