CN116928476A - Stainless steel corrugated pipe for compression type fuel gas - Google Patents
Stainless steel corrugated pipe for compression type fuel gas Download PDFInfo
- Publication number
- CN116928476A CN116928476A CN202311189382.2A CN202311189382A CN116928476A CN 116928476 A CN116928476 A CN 116928476A CN 202311189382 A CN202311189382 A CN 202311189382A CN 116928476 A CN116928476 A CN 116928476A
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- Prior art keywords
- screw thread
- adapter
- head
- threaded
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 39
- 239000010935 stainless steel Substances 0.000 title claims abstract description 39
- 230000006835 compression Effects 0.000 title claims description 17
- 238000007906 compression Methods 0.000 title claims description 17
- 239000002737 fuel gas Substances 0.000 title description 3
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to the technical field of corrugated pipe bodies, in particular to a stainless steel corrugated pipe for compressed gas, which comprises a corrugated pipe body, a threaded adapter, a threaded adjusting head, a gasket and a locking component.
Description
Technical Field
The invention relates to the technical field of corrugated pipe bodies, in particular to a stainless steel corrugated pipe for compressed gas.
Background
The stainless steel corrugated pipe is used as a flexible pressure-resistant pipe fitting to be installed in a liquid conveying system and used for compensating the mutual displacement of connecting ends of pipelines or machines and equipment, absorbing vibration energy, playing roles of vibration reduction, noise reduction and the like, has the characteristics of good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance and the like, and is widely applied to gas, water heating and oil-way pipelines. In different application scenarios, need connect different pipeline connecting pieces on the stainless steel bellows and connect, in actual connection process, need change the pipeline connecting piece frequently, not only the suitability is poor, leads to the workman to be lower at installation and connection process efficiency moreover.
Chinese application CN111457173B provides a compression type stainless steel bellows for gas pipeline and its assembling method, wherein the stainless steel bellows comprises a stainless steel bellows body, an adjusting nut is sleeved on the stainless steel bellows body, and a rubber ring is fixedly mounted on the adjusting nut; the assembling method of the stainless steel corrugated pipe comprises the steps of sleeving an adjusting nut and a rubber ring at one end of a stainless steel corrugated pipe body; rotating the threaded sleeve in the forward direction until the end part of the stainless steel corrugated pipe body is exposed; placing a plurality of elastic sheets in the stainless steel corrugated pipe body, and fixing the end part of the stainless steel corrugated pipe body in the circular fixing groove; rotating the threaded sleeve in the opposite direction to enable the small-aperture section of the threaded sleeve to be in threaded connection with the adapter; and the adapter is in threaded connection with the end to be connected.
This bellows passes through adjusting nut and threaded sleeve installs the one end at the bellows body with the adapter, and it installs through threaded connection's mode, however when this internal gas that has of bellows passed through, the bellows body can produce certain vibration, and this kind of vibration can lead to adjusting nut and threaded sleeve's lax gradually, and then can lead to the junction of bellows body and adapter to appear the gap, and then should leak the phenomenon.
Disclosure of Invention
To above-mentioned problem, provide a stainless steel bellows for compressed gas, fix the one end at the bellows body with the screw thread adapter through screw thread adjustment head and gasket, install simultaneously on screw thread adjustment overhead locking subassembly can connect screw thread adjustment head and screw thread adapter steadily, when adjusting the section of thick bamboo with screw thread adjustment head drive promptly, the locking head can lock with the annular on the screw thread adapter to this prevents to appear the problem of gap because of the vibration of bellows body between screw thread adapter and the bellows body.
In order to solve the problems in the prior art, the invention provides a stainless steel corrugated pipe for compressed gas, which comprises a corrugated pipe body, a threaded adapter, a threaded adjusting head, a gasket and a locking assembly, wherein the end part of the corrugated pipe body is compressed and extends to the end part of the threaded adapter, the threaded adjusting head is sleeved on the corrugated pipe body, the gasket is sleeved on a ring on the outer circumferential surface of the corrugated pipe body, the gasket is abutted to the inner end of the threaded adjusting head, the threaded adjusting head is in threaded connection with the threaded adapter, an annular groove coaxial with the threaded adapter is arranged on the outer circumferential surface of the threaded adapter, the locking assembly is arranged on the threaded adjusting head, the locking assembly is provided with an adjusting cylinder capable of locking the threaded adjusting head, and the locking head capable of extending into the annular groove, and in a working state, the adjusting cylinder can drive the locking head to move into the annular groove.
Preferably, the end of the threaded adapter is provided with a socket coaxial with the threaded adapter, the compression end of the corrugated pipe body is coaxially sleeved on the socket, a first external thread surface is arranged on the outer circumferential surface of the threaded adapter, a stepped groove is formed in the inner circumferential surface of the threaded adjusting head, a first internal thread surface is arranged in the stepped groove, the first internal thread surface is coaxially screwed with the first external thread surface, the inner diameter of the threaded adjusting head is smaller than the outer diameter of the gasket, and the diameter of the stepped groove is larger than the outer diameter of the gasket.
Preferably, the gasket comprises a first semicircular ring and a second semicircular ring, a first annular valley and a second annular valley are formed in one side, close to the compression end, of the corrugated pipe body, the first annular valley is sleeved with the two first semicircular rings, the second semicircular rings are coaxially sleeved with the second annular valley, and the first semicircular rings and the second semicircular rings are connected in a coaxial rotating mode.
Preferably, one end of the first semicircular ring facing the second semicircular ring is provided with a first semicircular edge, one end of the first semicircular edge facing the first semicircular ring is provided with a dovetail groove coaxial with the first semicircular ring, one end of the second semicircular ring facing the first semicircular ring is provided with a second semicircular edge coaxial with the second semicircular ring, one end of the second semicircular edge facing the first semicircular ring is provided with a dovetail bar coaxial with the second semicircular ring, the dovetail groove is rotationally connected with the dovetail bar in a jogged mode, and abutting faces of the two first semicircular rings and abutting faces of the two second semicircular rings are staggered along the axial direction of the two first semicircular rings.
Preferably, the locking assembly further comprises an elastic piece, a fixing ring is arranged at one end, far away from the threaded adapter, of the outer circumferential surface of the threaded adjusting head, a second outer threaded surface is further arranged on the outer circumferential surface of the threaded adjusting head, a second inner threaded surface is arranged on the inner circumferential surface of the adjusting cylinder, the second outer threaded surface and the second inner threaded surface are coaxially screwed, the elastic piece is sleeved on the threaded adjusting head, the elastic piece is located between the fixing ring and the adjusting cylinder, a mounting seat is arranged at one end, facing the threaded adapter, of the threaded adjusting head, the locking head is arranged on the mounting seat, the locking head is in transmission connection with the adjusting cylinder, and when the adjusting cylinder is rotated to be far away from the fixing ring, the adjusting cylinder guides the locking head to extend into the annular groove.
Preferably, the adjusting cylinder is provided with the butt groove towards the one end of screw adapter, the setting seat is including coaxial setting is in the first fixed cylinder of screw adapter tip, first fixed cylinder is provided with the setting groove along its circumference, the setting groove is followed the axial extension of first fixed cylinder, be provided with the pivot in the setting groove, the locking head is the butt pole, the butt pole rotationally sets up on the pivot, the annular have with screw adapter radial surface parallel butt face, when screw adapter and screw adapter lock, the one end butt of butt pole is in on the butt face, the other end butt of butt pole is in on the butt groove.
Preferably, one end of the adjusting cylinder facing the threaded adapter is provided with a first conical surface coaxial with the adjusting cylinder, the diameter of the first conical surface gradually increases from the inner end of the first conical surface to the outside, the mounting seat comprises a second fixed cylinder coaxially arranged at the end of the threaded adjusting head, a through groove extending along the radial direction of the second fixed cylinder is formed in the second fixed cylinder, the locking head is a sliding block, the sliding block is slidably arranged in the through groove along the radial direction of the second fixed cylinder, one end, away from the axis of the second fixed cylinder, of the sliding block is abutted to the first conical surface, the annular groove is provided with a second conical surface coaxial with the annular groove, the diameter of the second conical surface gradually increases from the threaded adapter to the direction of the threaded adjusting head, and one end, close to the axis of the second fixed cylinder, of the sliding block is abutted to the second conical surface.
Preferably, limiting blocks are arranged on the outer sides of two ends of the sliding block, and the sliding block slides on the through groove.
Preferably, the elastic member includes a spring or a disc spring.
Preferably, the first nut coaxial with the threaded adjusting head is arranged on the outer circumferential surface of the threaded adjusting head, the second nut coaxial with the threaded adjusting head is arranged on the outer circumferential surface of the adjusting cylinder, and the third nut coaxial with the threaded adapter is arranged on the outer circumferential surface of the threaded adapter.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the threaded adapter is fixed at one end of the corrugated pipe body through the threaded adjusting head and the gasket, and meanwhile, the locking component arranged on the threaded adjusting head can be stably connected with the threaded adjusting head and the threaded adapter, namely, when the adjusting cylinder is driven relative to the threaded adjusting head, the locking head can be locked with the annular groove on the threaded adapter, so that the problem that a gap is formed between the threaded adapter and the corrugated pipe body due to vibration of the corrugated pipe body is prevented.
Drawings
Fig. 1 is a perspective view of a stainless steel corrugated tube for compressed gas.
Fig. 2 is a perspective cross-sectional view of a stainless steel bellows for compressed gas.
Fig. 3 is a cross-sectional view of a first embodiment of a stainless steel corrugated tube for a gas burner.
Fig. 4 is an exploded perspective view of a first embodiment of a stainless steel corrugated tube for a gas burner.
Fig. 5 is an exploded view of a gasket in a compressed gas stainless steel bellows at a first viewing angle.
Fig. 6 is an exploded view of a gasket in a compressed gas stainless steel bellows at a second view angle.
Fig. 7 is a perspective view of a threaded adjustment head and a abutment rod in a stainless steel corrugated tube for a compressed gas.
Fig. 8 is a cross-sectional view of a second embodiment of a stainless steel corrugated tube for a gas burner.
Fig. 9 is an exploded perspective view of a second embodiment of a stainless steel corrugated tube for a gas burner.
Fig. 10 is a perspective view of a threaded adjustment head and slider in a compression gas stainless steel bellows.
The reference numerals in the figures are: 1-a bellows body; 2-threaded adapter; 21-ring groove; 22-inserting a cylinder; 23-a third nut; 3-a threaded adjustment head; 34-step grooves; 31-a fixing ring; 321-a first fixed barrel; 322-pivot; 323-a second fixed cylinder; 33-a first nut; 4-a gasket; 41-a first semicircle; 411-first semicircle edge; 412-a dovetail groove; 42-a second semicircle; 421-second semicircle edge; 422-dovetail bar; 51-an adjustment cylinder; 511-a second nut; 52-locking head; 521-abutting the rod; 522-sliding blocks; 5221-limited block; 53-an elastic member; 6-rubber cushion.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 1, 2, 4 and 9, the present invention provides:
the utility model provides a stainless steel bellows for compressed gas, includes bellows body 1, screw thread adapter 2, screw thread adjustment head 3, gasket 4 and locking subassembly, the tip compression of bellows body 1 and extend to screw thread adapter 2's tip, screw thread adjustment head 3 cover is established on the bellows body 1, gasket 4 cover is established on the ring of bellows body 1 outer periphery, gasket 4 butt is in screw thread adjustment head 3's inner, screw thread adjustment head 3 with screw thread adapter 2 threaded connection, be provided with rather than coaxial annular 21 on screw thread adapter 2's the outer periphery, locking subassembly sets up on screw thread adjustment head 3, locking subassembly has can be in screw thread adjustment head 3 upper lock position's adjustment cylinder 51, and can extend to lock head 52 in the annular 21, under the operating condition, adjustment cylinder 51 can drive lock head 52 removes to in the annular 21.
The stainless steel corrugated pipe further comprises a rubber pad 6, and the rubber pad 6 is arranged between the compression end of the corrugated pipe body 1 and the threaded adapter 2.
After the fuel gas is introduced into the corrugated pipe, the corrugated pipe can generate certain vibration, the friction force between the threaded adapter 2 and the threaded adjusting head 3 can be reduced by the vibration, so that the threaded adapter 2 and the threaded adjusting head 3 are loosened, gaps are further generated, the vibration can generate tiny vibration amplitude and tiny relative displacement, in the vibration process, the tight contact state between the threaded adapter 2 and the threaded adjusting head 3 can be damaged, intermittent sliding is formed between the threaded adapter 2 and the threaded adjusting head 3, and further the threaded adapter 2 and the threaded adjusting head 3 are loosened.
Through with gasket 4 card in the groove of bellows body 1 outer peripheral face for when screw thread adapter 2 and screw thread adjustment head 3 are coaxial to be screwed up, screw thread adjustment head 3 can drive gasket 4 and the compression end butt of bellows body 1 in the one end of screw thread adapter 2, simultaneously because of being provided with cushion 6 between the compression end of bellows body 1 and the screw thread adapter 2, with this can sealing connection screwed connection head and bellows body 1.
After the screw adapter 2 is connected with the bellows body 1 through the screw adjustment head 3 and the gasket 4, the overall length of the screw adapter 2 and the screw adjustment head 3 is locked through the locking assembly to prevent looseness between the screw adapter 2 and the screw adjustment head 3.
The adjusting cylinder 51 is driven relative to the threaded adjusting head 3, so that the adjusting cylinder 51 drives the locking head 52 to move into the annular groove 21, and the integral length of the threaded adapter 2 and the threaded adjusting head 3 can be locked, and loosening of the threaded adapter 2 and the threaded adjusting head 3 caused by vibration is avoided.
In this embodiment, the threaded adapter 2 is fixed at one end of the bellows body 1 through the threaded adjusting head 3 and the gasket 4, and the locking component installed on the threaded adjusting head 3 can stably connect the threaded adjusting head 3 and the threaded adapter 2, that is, when the adjusting cylinder 51 is driven relative to the threaded adjusting head 3, the locking head 52 can be locked with the annular groove 21 on the threaded adapter 2, so as to prevent the problem that a gap occurs between the threaded adapter 2 and the bellows body 1 due to vibration of the bellows body 1.
As shown in fig. 3 and 8, the end of the threaded adapter 2 is provided with a socket 22 coaxial with the socket, the compression end of the bellows body 1 is coaxially sleeved on the socket 22, a first external thread surface is provided on the outer circumferential surface of the threaded adapter 2, a stepped groove 34 is provided on the inner circumferential surface of the threaded adjustment head 3, a first internal thread surface is provided in the stepped groove 34, the first internal thread surface and the first external thread surface are coaxially screwed, the inner diameter of the threaded adjustment head 3 is smaller than the outer diameter of the gasket 4, and the diameter of the stepped groove 34 is larger than the outer diameter of the gasket 4.
Through setting up first external screw thread face on screw thread adapter 2, set up first internal screw thread connection on screw thread adjustment head 3 to this make can threaded connection between screw thread adapter 2 and the screw thread adjustment head 3, but the one end of butt gasket 4 in relative rotation while butt groove makes gasket 4 drive the compression pot head of bellows body 1 establish on inserting section of thick bamboo 22, with this sealing connection who realizes screw thread adapter 2 and bellows body 1.
As shown in fig. 5 and 6, the gasket 4 includes a first semicircular ring 41 and a second semicircular ring 42, a first annular valley and a second annular valley are provided on a side of the bellows body 1 near the compression end, the first annular valley is sleeved between the two first semicircular rings 41, the second semicircular rings 42 are coaxially sleeved on the second annular valley, and the first semicircular rings 41 and the second semicircular rings 42 are coaxially and rotatably connected.
Through establishing two first semicircle rings 41 cover on first ring valley, and establish two second semicircle rings 42 cover on the second ring valley, when screw thread adapter 2 and screw thread adjustment head 3 are rotatory relatively, two first semicircle rings 41 and two second semicircle rings 42 can be with the compression end butt of bellows body 1 on screw thread adapter 2, simultaneously because of coaxial swivelling connection between first semicircle rings 41 and the second semicircle rings 42 for the butt gap of two first semicircle rings 41 and two second semicircle rings 42 can stagger each other, with this leakproofness that improves bellows body 1 and screw thread adapter 2.
As shown in fig. 5 and 6, a first semicircular edge 411 is disposed at an end of the first semicircular ring 41 facing the second semicircular ring 42, a dovetail groove 412 coaxial with the first semicircular edge 411 is disposed at an end of the first semicircular ring 41 facing the first semicircular ring 41, a second semicircular edge 421 coaxial with the second semicircular ring 42 is disposed at an end of the second semicircular ring 42 facing the first semicircular ring 41, a dovetail bar 422 coaxial with the second semicircular edge 421 is disposed at an end of the second semicircular ring 41 facing the first semicircular ring 41, the dovetail groove 412 is rotationally connected with the dovetail bar 422 in a jogged manner, and abutting surfaces of the two first semicircular rings 41 and abutting surfaces of the two second semicircular rings 42 are staggered along an axial direction of the second semicircular ring.
The first semicircular ring 41 and the second semicircular ring 42 are coaxially connected in a rotating manner through the dovetail groove 412 and the dovetail strip 422, namely after the first semicircular ring 41 and the second semicircular ring 42 are sleeved on the corrugated pipe body 1, the abutting gaps of the two first semicircular rings 41 and the two second semicircular rings 42 can be staggered mutually through rotating the two second semicircular rings 42 relative to the two first semicircular rings 41, so that the tightness of the threaded adapter 2 and the corrugated pipe body 1 is improved.
As shown in fig. 3 and 8, the locking assembly further includes an elastic member 53, a fixing ring 31 is disposed at an end of the outer circumferential surface of the threaded adjustment head 3, which is far away from the threaded adapter 2, a second external threaded surface is disposed on the outer circumferential surface of the threaded adjustment head 3, a second internal threaded surface is disposed on the inner circumferential surface of the adjustment cylinder 51, the second external threaded surface and the second internal threaded surface are coaxially screwed, the elastic member 53 is sleeved on the threaded adjustment head 3, the elastic member 53 is disposed between the fixing ring 31 and the adjustment cylinder 51, a mounting seat is disposed at an end of the threaded adjustment head 3, which faces the threaded adapter 2, the locking head 52 is disposed on the mounting seat, the locking head 52 is in transmission connection with the adjustment cylinder 51, and when the adjustment cylinder 51 is rotated to be far away from the fixing ring 31, the locking head 52 is guided by the adjustment cylinder 51 to extend into the ring groove 21.
When the whole length of the threaded adapter 2 and the threaded adjusting head 3 needs to be locked, the adjusting cylinder 51 is rotated relative to the threaded adjusting head 3 due to the threaded connection of the second external threaded surface and the second internal threaded surface, so that the adjusting cylinder 51 is far away from the fixed ring 31, the locking head 52 can be driven to extend into the ring groove 21 by the movement of the adjusting cylinder 51, the threaded adapter 2 and the threaded adjusting head 3 are locked, meanwhile, when the bellows body 1 vibrates due to the fact that the elastic piece 53 is arranged between the fixed ring 31 and the adjusting cylinder 51, the adjusting cylinder 51 and the threaded adjusting head 3 can be loosened due to the fact that the elastic force of the elastic piece 53 is overcome, and therefore when the elastic force of the elastic piece 53 is larger than the acting force due to vibration, the adjusting cylinder 51 cannot be loosened on the threaded adjusting head 3, and the threaded adapter 2 and the threaded adjusting head 3 can be stably connected.
As shown in fig. 3 and 7, an abutment groove is provided at one end of the adjusting cylinder 51 facing the threaded adapter 2, the setting seat includes a first fixed cylinder 321 coaxially provided at an end of the threaded adjusting head 3, the first fixed cylinder 321 is provided with a setting groove along a circumferential direction thereof, the setting groove extends along an axial direction of the first fixed cylinder 321, a pivot 322 is provided in the setting groove, the locking head 52 is an abutment rod 521, the abutment rod 521 is rotatably provided on the pivot 322, the annular groove 21 has an abutment surface parallel to a radial surface of the threaded adapter 2, one end of the abutment rod 521 abuts against the abutment surface when the threaded adapter 2 and the threaded adjusting head 3 are locked, and the other end of the abutment rod 521 abuts against the abutment groove.
As a first embodiment of the locking head 52, when the adjusting cylinder 51 is rotated such that the adjusting cylinder 51 is far away from the fixed ring 31, the abutting groove in the adjusting cylinder 51 can drive the outer end of the abutting rod 521 to approach the threaded adapter 2, so that the other end of the abutting rod 521 rotates to abut against one end of the ring groove 21, thereby realizing locking of the threaded adapter 2 and the threaded adjusting head 3, and preventing loosening phenomenon between the threaded adapter 2 and the threaded adjusting head 3.
As shown in fig. 8 and 10, the adjusting cylinder 51 is provided with a first conical surface coaxial with the adjusting cylinder, the diameter of the first conical surface gradually increases from the inner end to the outer end, the setting seat comprises a second fixed cylinder 323 coaxially arranged at the end of the screw adjusting head 3, a through groove extending along the radial direction of the second fixed cylinder 323 is provided on the second fixed cylinder 323, the locking head 52 is a sliding block 522, the sliding block 522 is slidably arranged in the through groove along the radial direction of the second fixed cylinder 323, one end of the sliding block 522 away from the axis of the second fixed cylinder 323 is abutted against the first conical surface, the annular groove 21 is provided with a second conical surface coaxial with the annular groove, the diameter of the second conical surface gradually increases from the screw adjusting head 2 to the direction of the screw adjusting head 3, and one end of the sliding block 522 close to the axis of the second fixed cylinder 323 is abutted against the second conical surface.
As a second embodiment of the locking head 52, when the adjustment cylinder 51 is rotated such that the adjustment cylinder 51 is away from the fixed ring 31, since the first tapered surface is provided in the adjustment cylinder 51 and the tip of the sliding block 522 abuts on the first tapered surface, when the first tapered surface approaches the screw adapter 2, the sliding block 522 approaches the axis of the second fixed cylinder 323 in the radial direction thereof, so that the sliding block 522 abuts on the second tapered surface of the ring groove 21, and when the second tapered surface receives a force in the radial direction thereof, the screw adapter 2 approaches the screw adapter 3 under the action of the inclined surface, thereby locking the screw adapter 2 and the screw adapter 3.
As shown in fig. 10, the outer sides of the two ends of the sliding block 522 are provided with limiting blocks 5221, and the sliding block 522 slides on the through groove.
By arranging the limiting blocks 5221 at the two ends of the sliding block 522, the sliding block 522 cannot be separated from the through groove when sliding on the through groove.
As shown in fig. 3 and 8, the elastic member 53 includes a spring or a disc spring.
The spring or disc spring can output a stable elastic force to one end of the adjustment cylinder 51.
As shown in fig. 4 and 9, the first nut 33 coaxial with the threaded adjustment head 3 is provided on the outer circumferential surface thereof, the second nut 511 coaxial with the adjustment cylinder 51 is provided on the outer circumferential surface thereof, and the third nut 23 coaxial with the threaded adapter 2 is provided on the outer circumferential surface thereof.
By the first nut 33 and the third nut 23, it is possible to facilitate the user to rotate the screw adjusting head 3 with respect to the screw rotating head. By means of the first nut 33 and the second nut 511, it is possible to facilitate the use of this to rotate the adjustment cylinder 51 with respect to the threaded adjustment head 3.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. The utility model provides a stainless steel bellows for compressed gas, its characterized in that includes bellows body (1), screw thread adapter (2), screw thread adjustment head (3), gasket (4) and locking subassembly, the tip compression of bellows body (1) extends to the tip of screw thread adapter (2), screw thread adjustment head (3) cover is established on bellows body (1), gasket (4) cover are established on the ring of bellows body (1) outer peripheral face, gasket (4) butt is in the inner of screw thread adjustment head (3), screw thread adjustment head (3) with screw thread adapter (2) threaded connection, be provided with on the outer peripheral face of screw thread adapter (2) rather than coaxial annular (21), the locking subassembly sets up on screw thread adjustment head (3), locking subassembly has can be in locking position's adjustment section of thick bamboo (51) on screw thread adjustment head (3) and can extend to in locking head (52) in the outer peripheral face, can drive in the annular groove (52) under the locking head (52) in the state can be adjusted annular (51).
2. The stainless steel corrugated pipe for compressed gas according to claim 1, wherein an end portion of the threaded adapter (2) is provided with a socket (22) coaxial with the socket, a compression end of the corrugated pipe body (1) is coaxially sleeved on the socket (22), a first external thread surface is arranged on the outer circumferential surface of the threaded adapter (2), a stepped groove (34) is arranged on the inner circumferential surface of the threaded adjusting head (3), a first internal thread surface is arranged in the stepped groove (34), the first internal thread surface is coaxially screwed with the first external thread surface, the inner diameter of the threaded adjusting head (3) is smaller than the outer diameter of the gasket (4), and the diameter of the stepped groove (34) is larger than the outer diameter of the gasket (4).
3. The stainless steel corrugated pipe for compressed gas according to claim 2, wherein the gasket (4) comprises a first semicircular ring (41) and a second semicircular ring (42), a first annular valley and a second annular valley are formed on one side, close to the compression end, of the corrugated pipe body (1), the first annular valley is sleeved between the two first semicircular rings (41), the second semicircular rings (42) are coaxially sleeved on the second annular valley, and the first semicircular rings (41) and the second semicircular rings (42) are coaxially connected in a rotating mode.
4. A stainless steel corrugated pipe for compressed gas according to claim 3, characterized in that one end of the first semicircular ring (41) facing the second semicircular ring (42) is provided with a first semicircular edge (411), one end of the first semicircular edge (411) facing the first semicircular ring (41) is provided with a dovetail groove (412) coaxial therewith, one end of the second semicircular ring (42) facing the first semicircular ring (41) is provided with a second semicircular edge (421) coaxial therewith, one end of the second semicircular edge (421) facing the first semicircular ring (41) is provided with a dovetail bar (422) coaxial therewith, the dovetail groove (412) is connected with the dovetail bar (422) in a jogged rotation manner, and the abutting surfaces of the two first semicircular rings (41) and the abutting surfaces of the two second semicircular rings (42) are staggered along the axial direction thereof.
5. A stainless steel corrugated tube for compressed gas according to any one of claims 2 to 4, characterized in that the locking assembly further comprises an elastic member (53), a fixing ring (31) is provided at one end of the outer circumferential surface of the screw thread adjusting head (3) away from the screw thread adapter (2), a second external screw thread surface is further provided on the outer circumferential surface of the screw thread adjusting head (3), the inner circumferential surface of the adjusting cylinder (51) has a second internal screw thread surface, the second external screw thread surface and the second internal screw thread surface are screwed coaxially, the elastic member (53) is sleeved on the screw thread adjusting head (3), the elastic member (53) is located between the fixing ring (31) and the adjusting cylinder (51), a setting seat is provided at one end of the screw thread adjusting head (3) facing the screw thread adapter (2), the locking head (52) is provided on the setting seat, the locking head (52) is connected with the adjusting cylinder (51) in a driving manner, and the adjusting cylinder (51) is rotated to extend away from the fixing ring (51) when the adjusting cylinder (31) is far from the fixing ring (51).
6. The stainless steel corrugated tube for compressed gas according to claim 5, wherein the adjusting cylinder (51) is provided with an abutment groove towards one end of the screw adapter (2), the setting seat comprises a first fixed cylinder (321) coaxially arranged at the end of the screw adapter (3), the first fixed cylinder (321) is provided with a setting groove along the circumference thereof, the setting groove extends along the axial direction of the first fixed cylinder (321), a pivot (322) is arranged in the setting groove, the locking head (52) is an abutment rod (521), the abutment rod (521) is rotatably arranged on the pivot (322), the ring groove (21) is provided with an abutment surface parallel to the radial surface of the screw adapter (2), one end of the abutment rod (521) abuts against the abutment surface when the screw adapter (2) and the screw adapter (3) are locked, and the other end of the abutment rod (521) abuts against the abutment groove.
7. The stainless steel corrugated tube for compressed gas according to claim 5, wherein one end of the adjusting cylinder (51) facing the threaded adapter (2) is provided with a first conical surface coaxial therewith, the diameter of the first conical surface gradually increases from the inner end to the outer end, the mounting seat comprises a second fixed cylinder (323) coaxially arranged at the end of the threaded adjusting head (3), a through groove extending along the radial direction of the second fixed cylinder (323) is provided on the second fixed cylinder (323), the locking head (52) is a sliding block (522), the sliding block (522) is slidably arranged in the through groove along the radial direction of the second fixed cylinder (323), one end of the sliding block (522) away from the axis of the second fixed cylinder (323) is abutted on the first conical surface, the ring groove (21) is provided with a second conical surface coaxial therewith, the diameter of the second conical surface gradually increases from the threaded adapter (2) to the direction of the threaded adjusting head (3), and the sliding block (522) is abutted on the second conical surface (522) near the second end.
8. The stainless steel corrugated pipe for compressed gas according to claim 7, wherein limiting blocks (5221) are arranged on the outer sides of two ends of the sliding block (522), and the sliding block (522) slides on the through groove.
9. A stainless steel corrugated tube for gas according to any one of claims 6-8, wherein the elastic member (53) comprises a spring or a disc spring.
10. A stainless steel corrugated tube for gas according to any one of claims 6-8, wherein the screw thread adjusting head (3) is provided with a first nut (33) coaxial therewith, the adjusting cylinder (51) is provided with a second nut (511) coaxial therewith, and the screw thread adapter (2) is provided with a third nut (23) coaxial therewith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311189382.2A CN116928476B (en) | 2023-09-15 | 2023-09-15 | Stainless steel corrugated pipe for compression type fuel gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311189382.2A CN116928476B (en) | 2023-09-15 | 2023-09-15 | Stainless steel corrugated pipe for compression type fuel gas |
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| CN116928476A true CN116928476A (en) | 2023-10-24 |
| CN116928476B CN116928476B (en) | 2023-12-22 |
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| Publication number | Publication date |
|---|---|
| CN116928476B (en) | 2023-12-22 |
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