CN220488526U - Stainless steel corrugated pipe for fuel gas - Google Patents

Abstract

The utility model relates to the technical field of corrugated pipes, in particular to a stainless steel corrugated pipe for fuel gas, which comprises a corrugated pipe body, wherein positioning rings are sleeved at two ends of the outer part of the corrugated pipe body, bolt parts are formed at two ends of the corrugated pipe body, connectors are sleeved on the bolt parts, each connector comprises a first sealing part, a second sealing part and a connecting part, the first sealing part is sleeved on the outer side of the bolt part and is in threaded connection with the bolt part, a first sealing gasket is attached to one surface of the first sealing part, which is opposite to the positioning rings, and the first sealing gasket is tightly attached to the positioning rings. According to the utility model, the two ends of the corrugated pipe body are provided with the detachable connector structures, so that the problem that the whole corrugated pipe needs to be replaced after the pipe body or the connector is damaged is avoided, and the maintenance and use cost is reduced.

Description

Stainless steel corrugated pipe for fuel gas

Technical Field

The utility model relates to the technical field of corrugated pipes, in particular to a stainless steel corrugated pipe for fuel gas.

Background

The common conveying pipeline for household fuel gas is provided with a plastic hose and a single-layer corrugated pipe, wherein the plastic hose has natural aging, and the service life of the plastic hose is prolonged along with the increase of the service life, so that the plastic hose has a short service life and needs to be replaced frequently; the single-layer corrugated pipe consists of a pipe body and connectors at two ends of the pipe body, wherein the connectors are welded and fixed on the pipe body of the corrugated pipe, so that the gas tightness of the gas corrugated pipe is ensured.

In the transportation and use process of the single-layer corrugated pipe, the welding part of the pipe is broken due to the effect of external pressure, so that the air tightness between the pipe body and the connector is reduced, and finally the whole corrugated pipe needs to be replaced, so that the maintenance and use cost is high. If a novel corrugated pipe is designed, the pipe body and the connector are detachably mounted, namely, the defect that the welding part is easy to break does not exist, and the corrugated pipe can be independently replaced aiming at the damaged part, so that the use cost of the corrugated pipe can be saved. For this reason, we propose a stainless steel bellows for gas to solve the above-mentioned drawbacks well.

Disclosure of Invention

The utility model aims to provide a stainless steel corrugated pipe for fuel gas, which is used for realizing detachable installation between a pipe body and a connector, thereby reducing maintenance and use cost.

The above object of the present utility model is achieved by the following technical solutions: the utility model provides a stainless steel bellows for gas, includes the bellows body, the outside both ends of bellows body all overlap and are equipped with the holding ring, and the both ends of bellows body all are formed with bolt portion, all overlap on the bolt portion and be equipped with the connector, the connector is including first sealing portion, second sealing portion and connecting portion, the outside at bolt portion is established to first sealing portion cover, and threaded connection between first sealing portion and the bolt portion, first sealing portion is just to the first sealed pad that has all laminated of one side of holding ring, closely laminating between first sealing pad and the holding ring.

Preferably, the inside both ends of bellows body all are formed with the retainer plate, the retainer plate is just to the equal laminating of one side of connector and is equipped with the gasket, the second sealing part is located the inboard of bellows body, and closely laminates between second sealing part and the gasket.

Preferably, the outside both ends of bellows body all are equipped with the cooperation cover, the cooperation cover is annular structure, and the cooperation cover is established in the outside of holding ring and first sealing portion, the outer wall of holding ring and first sealing portion all laminates with the inner wall of cooperation cover.

Preferably, a second sealing gasket is attached to the inside of the matching sleeve, and the second sealing gasket is sleeved on the outer side of the positioning ring.

Preferably, the matching sleeve is formed by splicing two semi-annular structures, and the two semi-annular structures are fixedly connected through bolts.

Preferably, the first sealing part, the second sealing part and the connecting part are integrally formed to form a connector, and an external thread for connection is arranged on the outer wall of the connecting part.

Compared with the prior art, the utility model provides the stainless steel corrugated pipe for the fuel gas, which has the following beneficial effects:

1. according to the utility model, the two ends of the corrugated pipe body are provided with the detachable connector structures, so that the whole corrugated pipe is prevented from being replaced after the pipe body or the connector is damaged, and the maintenance and use cost is reduced;

2. according to the utility model, the corrugated pipe body and the connector are detachably arranged, and the positioning ring and the bolt part are formed at the end part of the corrugated pipe body, so that compared with the prior art, the corrugated pipe is welded and fixed with the connector, and the hidden danger of leakage caused by rupture of a welded part is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partial cross-sectional view of the structure of the present utility model.

In the figure: 1. a bellows body; 2. a positioning ring; 3. a bolt portion; 4. a connector; 41. a first sealing part; 42. a second sealing part; 43. a connection part; 5. a fixing ring; 6. a gasket; 7. a first gasket; 8. a matching sleeve; 9. and a second gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-2, a stainless steel corrugated pipe for fuel gas comprises a corrugated pipe body 1, positioning rings 2 are sleeved at two outer ends of the corrugated pipe body 1, bolt portions 3 are formed at two ends of the corrugated pipe body 1, namely, the corrugated pipe body 1, the positioning rings 2 and the bolt portions 3 are integrally formed, connectors 4 are sleeved on the bolt portions 3, the connectors 4 comprise first sealing portions 41, second sealing portions 42 and connecting portions 43, the first sealing portions 41, the second sealing portions 42 and the connecting portions 43 are integrally formed to form connectors 4, external threads for connection are formed on the outer walls of the connecting portions 43, the first sealing portions 41 are sleeved on the outer sides of the bolt portions 3, the first sealing portions 41 are in threaded connection with the bolt portions 3, one faces of the first sealing portions 41, which are opposite to the positioning rings 2, are respectively attached with first sealing gaskets 7, and the first sealing gaskets 7 are tightly attached to the positioning rings 2; the first sealing pad 7 is made of rubber, is fixedly embedded at the end part of the first sealing part 41, and is used for enhancing the air tightness between the corrugated pipe body 1 and the connector 5.

Fixing rings 5 are formed at two ends of the interior of the corrugated pipe body 1, gaskets 6 are respectively attached to one surface, facing the connectors 4, of the fixing rings 5, the second sealing part 42 is located on the inner side of the corrugated pipe body 1, and the second sealing part 42 is tightly attached to the gaskets 6; the gasket 6 is made of rubber, and is glued and attached to the fixing ring 5, so that the air tightness between the corrugated pipe body 1 and the connector 4 is further enhanced. The two ends of the outer part of the corrugated pipe body 1 are respectively provided with a matching sleeve 8, the matching sleeves 8 are in annular structures, the matching sleeves 8 are sleeved on the outer sides of the positioning ring 2 and the first sealing part 41, and the outer walls of the positioning ring 2 and the first sealing part 41 are respectively attached to the inner wall of the matching sleeve 8; i.e. the mating sleeve 8 is sleeved outside the positioning ring 2 and the first sealing part 41, and is used for preventing the connector 4 from loosening and falling off, thereby causing leakage. A second sealing gasket 9 is attached to the inside of the matching sleeve 8, and the second sealing gasket 9 is sleeved on the outer side of the positioning ring 2; the second sealing gasket 9 is made of rubber, is fixed on the inner side of the matching sleeve 8 in a gluing way, and is used for further enhancing the air tightness between the corrugated pipe body 1 and the connector 4. The matching sleeve 8 is formed by splicing two semi-annular structures, and the two semi-annular structures are connected and fixed through bolts; i.e. the matching sleeve 8 is convenient to disassemble and assemble, thereby being beneficial to saving the installation time.

Working principle: in the use process of the utility model, as the connectors 4 at the two ends of the corrugated pipe body 1 are detachably arranged on the corrugated pipe body 1, the whole corrugated pipe is prevented from being replaced due to the damage of the corrugated pipe body 1 or the connectors 4, i.e. the maintenance and use cost is reduced. Secondly, locating ring 2 and bolt portion 3 all take shape on bellows body 1, have avoided the hidden danger that causes bellows body 1 to reveal because of the welded part breaks. In addition, a fitting sleeve 8 is sleeved outside the positioning ring 2 and the first connecting portion 41, and the fitting sleeve 8 is used for limiting the position of the connector 4 and preventing the connector 4 from leaking due to loosening. Finally, be provided with gasket 6, first sealed pad 7 and the sealed pad 9 of second in the utility model, the effect of three all is the gas tightness between reinforcing bellows body 1 and the connector 4, prevents that the gas from revealing, ensures the security of the utility model discloses use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Stainless steel corrugated pipe for gas, including bellows body (1), its characterized in that: the outside both ends of bellows body (1) all overlap and are equipped with holding ring (2), and the both ends of bellows body (1) all are formed with bolt portion (3), all overlap on bolt portion (3) and be equipped with connector (4), connector (4) are including first sealing portion (41), second sealing portion (42) and connecting portion (43), the outside in bolt portion (3) is established to first sealing portion (41) cover, and threaded connection between first sealing portion (41) and bolt portion (3), first sealing portion (41) are just to holding ring (2) one side all laminating have first sealed pad (7), closely laminating between first sealed pad (7) and the holding ring (2).

2. A stainless steel corrugated tube for fuel gas according to claim 1, wherein: the corrugated pipe is characterized in that fixing rings (5) are formed at two ends of the inside of the corrugated pipe body (1), gaskets (6) are arranged on one faces of the fixing rings (5) opposite to the connectors (4) in a fitting mode, the second sealing portions (42) are located on the inner side of the corrugated pipe body (1), and the second sealing portions (42) are tightly attached to the gaskets (6).

3. A stainless steel corrugated tube for fuel gas according to claim 1, wherein: the corrugated pipe is characterized in that the two ends of the outer portion of the corrugated pipe body (1) are respectively provided with a matching sleeve (8), the matching sleeves (8) are of annular structures, the matching sleeves (8) are sleeved on the outer sides of the positioning ring (2) and the first sealing portion (41), and the outer walls of the positioning ring (2) and the first sealing portion (41) are attached to the inner wall of the matching sleeves (8).

4. A stainless steel corrugated tube for gas according to claim 3, wherein: the inside laminating of cooperation cover (8) has second sealed pad (9), the outside at holding ring (2) is established to second sealed pad (9) cover.

5. A stainless steel corrugated tube for gas according to claim 3, wherein: the matching sleeve (8) is formed by splicing two semi-annular structures, and the two semi-annular structures are fixedly connected through bolts.

6. A stainless steel corrugated tube for fuel gas according to claim 1, wherein: the first sealing part (41), the second sealing part (42) and the connecting part (43) are integrally formed to form the connector (4), and external threads for connection are formed on the outer wall of the connecting part (43).