CN117128372B - Connecting piece for aluminum pipe connection - Google Patents
Connecting piece for aluminum pipe connection Download PDFInfo
- Publication number
- CN117128372B CN117128372B CN202311379433.8A CN202311379433A CN117128372B CN 117128372 B CN117128372 B CN 117128372B CN 202311379433 A CN202311379433 A CN 202311379433A CN 117128372 B CN117128372 B CN 117128372B
- Authority
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- China
- Prior art keywords
- pipe
- aluminum pipe
- aluminum
- sealing ring
- fastening
- Prior art date
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 122
- 238000007789 sealing Methods 0.000 claims abstract description 85
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000008093 supporting effect Effects 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 29
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 29
- 241001330002 Bambuseae Species 0.000 abstract description 29
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 29
- 239000011425 bamboo Substances 0.000 abstract description 29
- 238000009434 installation Methods 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
-
- 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
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the field of pipe fittings, in particular to a connecting piece for aluminum pipe connection. Including connecting pipe and coupling assembling, coupling assembling includes outer section of thick bamboo that expands, the sealing ring, the swivel, clamp elastic component and pipe fitting sealing washer, when connecting the aluminum pipe, rotate the swivel, extrude clamp elastic component on the one hand and provide fastening elasticity for fastening section of thick bamboo and outer section of thick bamboo that expands for connecting pipe, outer section of thick bamboo and the sealing ring between the connection are more fastened, on the other hand, bracing piece and pipe fitting sealing washer constitute cam lock dead structure, make pipe fitting sealing washer butt keep away from outer section of thick bamboo on the aluminum pipe, fastening section of thick bamboo drive pipe fitting sealing washer butt is close to outer section of thick bamboo that expands in the one end of fastening section of thick bamboo inner wall, make pipe fitting sealing washer section long axial and aluminum pipe axis perpendicular direction rotate, the leakproofness of clearance between fastening section of thick bamboo and the outer section of thick bamboo that expands has been improved. When the aluminum pipe and the connecting pipe are far away from each other due to external force after the installation is completed, the cam locking structure enables the aluminum pipe and the fastening cylinder to be fastened more, and the tightness of the aluminum pipe and the connecting pipe is guaranteed.
Description
Technical Field
The invention relates to the technical field of pipe fittings, in particular to a connecting piece for aluminum pipe connection.
Background
The pipe fitting is a collective name of parts which play roles in connection, control, direction change, diversion, sealing, support and the like in a pipeline system. The pipe joint is a pipe fitting for interconnecting pipes, and is one of two main components of a fluid conveying pipeline, wherein the pipe joint is an indispensable important role in the pipe fitting, and comprises a flange, a loose joint, a pipe hoop, a clamping sleeve, a hose clamp and the like. In reality, for example, a resin coated aluminum pipe connecting piece for an air conditioner outdoor unit with the publication number CN112041605B is usually fastened by bolts, and the connection between the pipe fittings is made tighter by adopting inclined surfaces to be tightly attached and sealed. However, in the working process, the pipe joint is loosened due to unavoidable factors such as external force, such as vibration and manual pulling, so that the tightness is poor, and the leakage risk of the pipeline is caused.
Disclosure of Invention
The invention provides a connecting piece for aluminum pipe connection, which solves the problem that the tightness of a connecting part is poor due to looseness of the connecting part caused by external force.
The invention relates to a connecting piece for aluminum pipe connection, which adopts the following technical scheme: a connecting piece for aluminum pipe connection comprises a connecting pipe and a connecting assembly. The connection pipe is coaxially disposed at one end of the aluminum pipe to be connected.
The connecting component comprises an outer expansion cylinder, a sealing ring, a swivel, a clamping elastic piece and a pipe fitting sealing ring. The outer expansion cylinder is funnel-shaped. The small end of the outer expansion cylinder is fixedly connected to the connecting end of the aluminum pipe, and the large end of the outer expansion cylinder is far away from the aluminum pipe. The sealing ring is coaxially arranged between the outer expansion cylinder and the connecting pipe, one end of the sealing ring is in sealing connection with the large end of the outer expansion cylinder, and the other end of the sealing ring is in sealing connection with one end of the connecting pipe. The swivel is movably sleeved on the outer side of the connecting pipe along the connecting pipe, and the swivel is in threaded fit with the connecting pipe. One end of the swivel close to the outer expansion cylinder is provided with a fastening cylinder. The fastening cylinder is funnel-shaped, the large end is fixedly connected to the upper end of the swivel, and the small end is far away from the swivel. The fastening cylinder is arranged at the outer side of the joint of the external expansion cylinder and the aluminum pipe.
The pipe fitting sealing ring is sleeved outside the aluminum pipe and is positioned in a gap between the fastening cylinder and the aluminum pipe. The pipe fitting sealing ring is an elastic ring with an elliptical section. The elliptical major axis of pipe fitting sealing washer cross-section is close to the outside one end of aluminum pipe axis and expands a section of thick bamboo and be close to the setting to the butt is on the aluminum pipe periphery wall, and the outside one end of keeping away from the aluminum pipe axis expands a section of thick bamboo and keeps away from the setting, and the butt is on the fastening section of thick bamboo inner periphery wall. The clamping elastic piece is arranged between the fastening cylinder and the outer expansion cylinder and is configured to be mutually close to and extrude the clamping elastic piece in the process that the swivel is far away from the aluminum pipe along the connecting pipe, and the fastening cylinder and the outer expansion cylinder provide fastening elastic force for the fastening cylinder and the outer expansion cylinder, so that the connection between the connecting pipe and the sealing ring and between the outer expansion cylinder and the sealing ring is more fastened, and meanwhile, one end of the pipe fitting sealing ring, which is abutted against the aluminum pipe, is far away from the outer expansion cylinder, and the tightness of a gap between the fastening cylinder and the outer expansion cylinder, which is blocked by the pipe fitting sealing ring, is improved.
Further, the clamping elastic piece comprises a clamping ring, a plurality of first elastic pieces and a plurality of second elastic pieces. The compression ring is an elastic ring and is sleeved at the large end of the outer expansion cylinder. The first elastic pieces and the second elastic pieces are alternately arranged along the circumferential direction of the compression ring. One end of the first elastic sheet approaches to the axis of the aluminum pipe and is abutted to the peripheral wall of the outer expansion cylinder, and the other end of the first elastic sheet is connected to the compression ring. One end of the second elastic sheet is far away from the axis of the aluminum pipe and is abutted on the inner peripheral wall of the fastening cylinder, and the other end of the second elastic sheet is connected to the compression ring. The movable end of the second elastic piece is provided with a supporting rod. One end of the supporting rod is fixedly connected with the movable end of the second elastic piece, and the other end of the supporting rod is connected with one end of the pipe fitting sealing ring, which is abutted against the aluminum pipe.
Further, one end of the sealing ring, which is close to the connecting pipe, is provided with an elastic boss. The compression ring is abutted on the boss.
Further, an internal thread is arranged on the inner side wall of the swivel. One end of the connecting pipe, which is close to the aluminum pipe, is provided with external threads.
Further, the connection assembly further comprises a stop collar. After the swivel is sleeved on the connecting pipe, the swivel is fixed on the aluminum pipe.
Further, the sealing ring and the flaring barrel are fixed by glue. The support rod and the pipe fitting sealing ring are fixed through glue. The limiting ring and the aluminum pipe are fixed through glue.
Further, the connecting tube diameter is greater than the aluminum tube diameter.
Further, the swivel is a nut.
Further, the connecting pipe is made of aluminum.
Further, the connecting pipe is arranged between the two aluminum pipes to be connected, and the two connecting components are symmetrically arranged at two ends of the connecting pipe.
The beneficial effects of the invention are as follows: when connecting the aluminum pipe, rotate the swivel and make its in-process that is close to each other along the connecting pipe, on the one hand, fastening section of thick bamboo and outer section of thick bamboo that expands are close to each other and press from both sides tight elastic component, and for fastening section of thick bamboo and outer section of thick bamboo that expands provide fastening elasticity, thereby make connecting pipe and sealing ring, expand between section of thick bamboo and the sealing ring outward and more fasten, on the other hand, bracing piece and pipe fitting sealing ring constitute the cam lock structure, make pipe fitting sealing ring butt one end on the aluminum pipe keep away from and expand the section of thick bamboo outward, fastening section of thick bamboo drive pipe fitting sealing ring butt is close to outer section of thick bamboo that expands at the one end of fastening section of thick bamboo inner wall, make pipe fitting sealing ring section of thick bamboo long axial and aluminum pipe axis vertical direction rotate, the leakproofness in clearance between pipe fitting sealing ring shutoff fastening section of thick bamboo and the outer section of thick bamboo that expands. When the aluminum pipe and the connecting pipe are mutually far away due to external force after the installation is finished, one end of the pipe fitting sealing ring, which is abutted against the aluminum pipe, is driven to be far away from the outer expansion cylinder, so that the tightness between the pipe fitting sealing ring and the aluminum pipe is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view showing the structure of an embodiment of a connecting member for aluminum pipe connection of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is an enlarged view of the portion X in FIG. 3;
fig. 5 is an enlarged view of Y in fig. 3;
FIG. 6 is an exploded view of an embodiment of the present invention;
FIG. 7 is an enlarged view at Z in FIG. 6;
FIG. 8 is a schematic view of the structure of a clamping spring according to an embodiment of the present invention;
in the figure: 100. a connecting pipe; 101. an external thread; 200. a swivel; 201. a fastening cylinder; 202. an internal thread; 300. an aluminum pipe; 301. an outer expanding cylinder; 302. a limiting ring; 400. a pipe fitting sealing ring; 500. clamping the elastic piece; 501. a first elastic sheet; 502. a second spring plate; 503. a support rod; 504. a clamp ring; 600. and (3) a sealing ring.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a connection member for aluminum pipe connection of the present invention is shown in fig. 1 to 8: a connection piece for aluminum pipe connection includes a connection pipe 100 and a connection assembly. The connection pipe 100 is coaxially disposed at one end of the aluminum pipe 300 to be connected.
The connection assembly comprises a flaring barrel 301, a sealing ring 600, a swivel 200, a clamping elastic member 500 and a pipe fitting sealing ring 400. The flaring stack 301 is funnel-shaped. The small end of the outer expansion cylinder 301 is fixedly connected to the connecting end of the aluminum pipe 300, and the large end is far away from the aluminum pipe 300. The sealing ring 600 is coaxially arranged between the outer expansion cylinder 301 and the connecting pipe 100, one end of the sealing ring is in sealing connection with the large end of the outer expansion cylinder 301, and the other end of the sealing ring is in sealing connection with one end of the connecting pipe 100. The swivel 200 is movably sleeved outside the connection pipe 100 along the connection pipe 100, and screw thread fit is formed between the swivel 200 and the connection pipe 100. The swivel 200 is provided with a fastening barrel 201 at one end near the flaring barrel 301. The fastening cylinder 201 is funnel-shaped, the large end is fixedly connected to the upper end of the swivel 200, and the small end is far away from the swivel 200. The fastening cylinder 201 is provided outside the junction of the flaring stack 301 and the aluminum tube 300.
The pipe fitting packing 400 is fitted around the outside of the aluminum pipe 300 in the gap between the fastening cylinder 201 and the aluminum pipe 300. The tube gasket 400 is an elastic ring having an elliptical cross section. The pipe fitting sealing ring 400 has a cross-sectional elliptical major axis, and one end of the elliptical major axis, which is close to the axis of the aluminum pipe 300, is provided close to the flared tube 301 and abuts against the outer peripheral wall of the aluminum pipe 300, and one end of the elliptical major axis, which is far from the axis of the aluminum pipe 300, is provided far from the flared tube 301 and abuts against the inner peripheral wall of the fastening tube 201. The clamping elastic member 500 is disposed between the fastening cylinder 201 and the outer expansion cylinder 301, and is configured such that in the process that the swivel 200 is far away from the aluminum pipe 300 along the connection pipe 100, the fastening cylinder 201 and the outer expansion cylinder 301 are close to each other and press the clamping elastic member 500, and provide fastening elastic force for the fastening cylinder 201 and the outer expansion cylinder 301, so that the connection between the connection pipe 100 and the sealing ring 600, the outer expansion cylinder 301 and the sealing ring 600 is more fastened, and simultaneously, one end of the pipe sealing ring 400 abutting on the aluminum pipe 300 is driven to be far away from the outer expansion cylinder 301, thereby improving the tightness of the pipe sealing ring 400 for sealing the gap between the fastening cylinder 201 and the outer expansion cylinder 301. When in use, the clamping elastic piece 500 is sleeved on the aluminum tube 300, the sealing ring 600 is fixedly connected with the large end of the outer expansion tube 301 by using glue, and then the swivel 200 is sleeved at the connecting tube 100 from one end of the aluminum tube 300 far away from the outer expansion tube 301, so that the fastening tube 201 is positioned outside the connecting position of the aluminum tube 300 and the fastening tube 201. Rotating the swivel 200, the swivel 200 moves away from the aluminum tube 300 along the connection tube 100 under the screw-fit between the swivel 200 and the connection tube 100, driving the fastening cylinder 201 and the flaring cylinder 301 toward each other and pressing the clamping elastic member 500. Since the screw-fit between the swivel 200 and the coupling tube 100 has a locking effect, the coupling between the aluminum tube 300 and the coupling tube 100 is made tighter by the elastic force of the clamping elastic member 500.
In this embodiment, the clamping elastic member 500 includes a clamping ring 504, a plurality of first elastic pieces 501 and a plurality of second elastic pieces 502. The compression ring 504 is an elastic ring that fits over the large end of the outer stent 301. The first elastic pieces 501 and the second elastic pieces 502 are alternately arranged along the circumferential direction of the compression ring 504. One end of the first elastic sheet 501 approaches the axis of the aluminum pipe 300 and abuts against the outer peripheral wall of the outer expansion cylinder 301, and the other end is connected to the clamp ring 504. One end of the second elastic piece 502 is far away from the axis of the aluminum pipe 300 and abuts against the inner peripheral wall of the fastening cylinder 201, and the other end is connected to the clamp ring 504. The first elastic piece 501 one end and the second elastic piece 502 one end are all fixed connection on the clamp ring 504, and first elastic piece 501 active end and second elastic piece 502 active end keep away from each other and be similar V font staggered distribution, and clamp ring 504 provides the elasticity that resets for first elastic piece 501 when stirring first elastic piece 501 active end makes first elastic piece 501 rotate around first elastic piece 501 stiff end, and similarly, clamp ring 504 provides the elasticity that resets for second elastic piece 502 when stirring second elastic piece 502 active end makes second elastic piece 502 rotate around second elastic piece 502 stiff end.
The movable end of the second elastic piece 502 is provided with a supporting rod 503. One end of the supporting rod 503 is fixedly connected with the movable end of the second elastic sheet 502, and the other end is connected with one end of the pipe fitting sealing ring 400, which is abutted against the aluminum pipe 300, and is used for acting as a fulcrum for one end of the long shaft of the pipe fitting sealing ring 400. While the fastening cylinder 201 and the outer expansion cylinder 301 are approaching each other, the outer expansion cylinder 301 presses the first elastic sheet 501, the fastening cylinder 201 presses the second elastic sheet 502, so that the first elastic sheet 501 is offset in a direction away from the axis of the aluminum pipe 300, and the second elastic sheet 502 is offset in a direction approaching the axis of the aluminum pipe 300, the fastening cylinder 201 and the outer expansion cylinder 301 are approaching each other in the radial direction of the aluminum pipe 300, so that the gap between the inner peripheral wall of the fastening cylinder 201 and the outer peripheral wall of the outer expansion cylinder 301 is gradually reduced, and the movable ends of the first elastic sheet 501 and the second elastic sheet 502 are approaching each other. Further, since the first elastic piece 501 and the second elastic piece 502 are elastic, as the fastening cylinder 201 and the flaring stack 301 approach each other in the radial direction of the aluminum pipe 300 to be pressed, the first elastic piece 501 and the second elastic piece 502 approach each other to provide fastening elastic force for the fastening cylinder 201 and the flaring stack 301, so that the connection between the connection pipe 100 and the sealing ring 600, and between the flaring stack 301 and the sealing ring 600 is more fastened. And as shown in fig. 4, when the fastening cylinder 201 moves relatively upwards and the outer expansion cylinder 301 moves relatively downwards, so that when the fastening cylinder 201 and the outer expansion cylinder 301 approach each other, the gap between the fastening cylinder 201 and the outer expansion cylinder 301 becomes smaller gradually, and at the same time, the end of the long shaft of the pipe fitting seal ring 400, which is close to the fastening cylinder 201, moves upwards under the driving of friction force along with the fastening cylinder 201, and due to the supporting effect of the supporting rod 503, the end of the long shaft of the pipe fitting seal ring 400, which is close to the outer expansion cylinder 301, deflects around the supporting rod 503.
Since the gap between the inner peripheral wall of the fastening cylinder 201 and the outer peripheral wall of the outer expansion cylinder 301 becomes smaller gradually in this process, the contact between the two ends of the long axis of the pipe fitting seal ring 400 and the fastening cylinder 201 and the outer expansion cylinder 301, respectively, becomes tighter, so that the fastening cylinder 201 and the outer expansion cylinder 301 become tighter, that is, the cam locking structure is realized when the fastening cylinder 201 and the outer expansion cylinder 301 are close to each other in the radial direction of the aluminum pipe 300.
In this embodiment, the sealing ring 600 is provided with an elastic boss near one end of the connection pipe 100. The pressing ring 504 abuts against the boss for making the pressing force of the fastening cylinder 201 on the axis of the aluminum pipe 300 of the seal ring 600 by the clamping elastic member 500 larger.
In this embodiment, the swivel 200 has internal threads 202 on the inside wall. An external thread 101 is provided at one end of the connection tube 100 near the aluminum tube 300 for pressing the outer expansion cylinder 301 and the connection tube 100 when the swivel 200 is rotated.
In this embodiment, the connection assembly further includes a stop collar 302. When the swivel 200 is fitted over the connection pipe 100, it is fixed to the aluminum pipe 300 to prevent the swivel 200 from falling off.
In this embodiment, the seal ring 600 and the flaring stack 301 are fixed by glue. The support rod 503 and the pipe fitting sealing ring 400 are fixed by glue. The limiting ring 302 and the aluminum pipe 300 are fixed through glue, so that the operation is convenient, and the influence on the tightness caused by looseness in use is prevented.
In this embodiment, the connection pipe 100 has a diameter larger than that of the aluminum pipe 300, facilitating the sealing connection of the aluminum pipe 300.
In this embodiment, the swivel 200 is a nut, which facilitates rotation of the swivel 200.
In this embodiment, the connecting tube 100 is made of aluminum or copper.
In this embodiment, the connection pipe 100 is disposed between two aluminum pipes 300 to be connected, and the connection assemblies are two and symmetrically disposed at both ends of the connection pipe 100, for making the connection between the aluminum pipes 300 and the aluminum pipes 300 more convenient.
In combination with the above embodiment, the use principle and working process of the present invention are as follows: when in use, the clamping elastic piece 500 is sleeved on the aluminum tube 300, the sealing ring 600 is fixedly connected with the large end of the outer expansion tube 301 by using glue, and then the swivel 200 is sleeved at the connecting tube 100 from one end of the aluminum tube 300 far away from the outer expansion tube 301, so that the fastening tube 201 is positioned outside the connecting position of the aluminum tube 300 and the fastening tube 201. Rotating swivel 200, under the screw-thread fit of external screw thread 101 and internal screw thread 202, swivel 200 is kept away from aluminum pipe 300 along connecting pipe 100, drives fastening section of thick bamboo 201 and outer section of thick bamboo 301 that expands each other, and when the outer section of thick bamboo 301 that expands extrudes first shell fragment 501, fastening section of thick bamboo 201 extrusion second shell fragment 502 for first shell fragment 501 is to the direction skew that is away from the axis of aluminum pipe 300, and second shell fragment 502 is to the direction skew that is close to the axis of aluminum pipe 300, and makes first shell fragment 501 and second shell fragment 502 be close to each other. The mutual approaching of the first elastic piece 501 and the second elastic piece 502 provides the fastening elastic force for the fastening cylinder 201 and the flaring stack 301, so that the connection between the connection pipe 100 and the sealing ring 600, and the flaring stack 301 and the sealing ring 600 is more fastened. Meanwhile, in the process of shifting the second elastic sheet 502 in the direction approaching to the axis of the aluminum tube 300, on one hand, the support rod 503 drives the end of the tube sealing ring 400 abutting on the aluminum tube 300 to be far away from the flaring stack 301.
On the other hand, the supporting rod 503 and the pipe fitting sealing ring 400 form a cam locking structure, in the process that the fastening cylinder 201 and the outer expanding cylinder 301 are close to each other, the fastening cylinder 201 drives the pipe fitting sealing ring 400 to be abutted against one end of the inner wall of the fastening cylinder 201 to be close to the outer expanding cylinder 301, so that the section long axial direction of the pipe fitting sealing ring 400 rotates in the direction perpendicular to the axis of the aluminum pipe 300, and the tightness of the gap between the fastening cylinder 201 and the outer expanding cylinder 301, which is sealed by the pipe fitting sealing ring 400, is improved.
Further, after the swivel 200 is fitted to the connection pipe 100 from the end of the aluminum pipe 300 remote from the outer expansion cylinder 301, a stopper 302 is fixed to the aluminum pipe 300 to prevent the swivel 200 from falling off.
When the aluminum pipe 300 and the connecting pipe 100 are mutually far away due to external force after the installation is completed, the aluminum pipe 300 drives one end of the pipe sealing ring 400, which is abutted against the aluminum pipe 300, to be far away from the outer expanding cylinder 301, the supporting rod 503 and the pipe sealing ring 400 form a cam locking structure, and the tightness between the pipe sealing ring 400 and the aluminum pipe 300 is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A connecting piece for aluminum pipe connection, its characterized in that: comprises a connecting pipe and a connecting component;
the connecting pipe is coaxially arranged at one end of the aluminum pipe to be connected;
the connecting component comprises an outer expansion cylinder, a sealing ring, a swivel, a clamping elastic piece and a pipe fitting sealing ring;
the outer expansion cylinder is funnel-shaped; the small end of the external expansion cylinder is fixedly connected to the connecting end of the aluminum pipe, and the large end of the external expansion cylinder is far away from the aluminum pipe;
the sealing ring is coaxially arranged between the outer expansion cylinder and the connecting pipe, one end of the sealing ring is in sealing connection with the large end of the outer expansion cylinder, and the other end of the sealing ring is in sealing connection with one end of the connecting pipe;
the swivel is movably sleeved on the outer side of the connecting pipe along the connecting pipe, and the swivel is in threaded fit with the connecting pipe; one end of the swivel close to the outer expansion cylinder is provided with a fastening cylinder; the fastening cylinder is funnel-shaped, the large end is fixedly connected to the upper end of the swivel, and the small end is far away from the swivel; the fastening cylinder is arranged at the outer side of the joint of the outer expansion cylinder and the aluminum pipe;
the pipe fitting sealing ring is sleeved outside the aluminum pipe and is positioned in a gap between the fastening cylinder and the aluminum pipe; the pipe fitting sealing ring is an elastic ring with an elliptical section; one end of the elliptical long axis of the cross section of the pipe fitting sealing ring, which is close to the axis of the aluminum pipe, is close to the outward expansion cylinder and is abutted to the outer peripheral wall of the aluminum pipe, and one end of the elliptical long axis of the cross section of the pipe fitting sealing ring, which is far away from the axis of the aluminum pipe, is close to the outward expansion cylinder and is abutted to the inner peripheral wall of the fastening cylinder;
the clamping elastic piece is arranged between the fastening cylinder and the outer expansion cylinder and is configured to enable the fastening cylinder and the outer expansion cylinder to be close to each other and squeeze the clamping elastic piece in the process that the swivel is far away from the aluminum pipe along the connecting pipe, and provide fastening elastic force for the fastening cylinder and the outer expansion cylinder, and drive one end of the pipe fitting sealing ring, which is abutted against the aluminum pipe, to be far away from the outer expansion cylinder;
the clamping elastic piece comprises a clamping ring, a plurality of first elastic pieces and a plurality of second elastic pieces; the compression ring is an elastic ring and is sleeved at the large end of the outer expansion cylinder; the plurality of first elastic pieces and the plurality of second elastic pieces are alternately arranged along the circumferential direction of the compression ring; one end of the first elastic sheet approaches to the axis of the aluminum pipe and is abutted against the peripheral wall of the outer expansion cylinder, and the other end of the first elastic sheet is connected to the compression ring; one end of the second elastic sheet is far away from the axis of the aluminum pipe and is abutted against the inner peripheral wall of the fastening cylinder, and the other end of the second elastic sheet is connected to the fastening ring; the movable end of the second elastic piece is provided with a supporting rod; one end of the supporting rod is fixedly connected with the movable end of the second elastic piece, and the other end of the supporting rod is connected with one end of the pipe fitting sealing ring, which is abutted against the aluminum pipe.
2. A connection piece for aluminum pipe connection according to claim 1, wherein: an elastic boss is arranged at one end of the sealing ring, which is close to the connecting pipe; the compression ring is abutted on the boss.
3. A connection piece for aluminum pipe connection according to claim 2, wherein: the inner side wall of the swivel is provided with an internal thread; one end of the connecting pipe, which is close to the aluminum pipe, is provided with external threads.
4. A connection piece for aluminum pipe connection according to claim 3, wherein: the connecting component also comprises a limiting ring; after the swivel is sleeved on the connecting pipe, the limiting ring is fixed on the aluminum pipe.
5. A connection piece for aluminum pipe connection according to claim 4, wherein: the sealing ring is fixed with the outer expansion cylinder through glue; the support rod and the pipe fitting sealing ring are fixed through glue; the limiting ring and the aluminum pipe are fixed through glue.
6. A connection piece for aluminum pipe connection according to claim 5, wherein: the diameter of the connecting pipe is larger than that of the aluminum pipe.
7. A connection piece for aluminum pipe connection according to claim 6, wherein: the swivel is a nut.
8. A connection piece for aluminum pipe connection according to claim 1, wherein: the connecting pipe is made of aluminum.
9. A connection piece for aluminum pipe connection according to any one of claims 1 to 8, wherein: the connecting pipe sets up between two aluminum pipes that wait to connect, and coupling assembling is two, establishes at the connecting pipe both ends symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311379433.8A CN117128372B (en) | 2023-10-24 | 2023-10-24 | Connecting piece for aluminum pipe connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311379433.8A CN117128372B (en) | 2023-10-24 | 2023-10-24 | Connecting piece for aluminum pipe connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117128372A CN117128372A (en) | 2023-11-28 |
| CN117128372B true CN117128372B (en) | 2023-12-29 |
Family
ID=88863095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311379433.8A Active CN117128372B (en) | 2023-10-24 | 2023-10-24 | Connecting piece for aluminum pipe connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117128372B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396766A (en) * | 1989-06-19 | 1991-04-22 | Furukawa Electric Co Ltd:The | Sealing method for shafts and pipes |
| CN108869911A (en) * | 2018-08-30 | 2018-11-23 | 杭州赛威斯真空技术有限公司 | A kind of glass tube seal structure and encapsulating method for ultra-high vacuum system |
| CN111853384A (en) * | 2020-07-07 | 2020-10-30 | 邱强生 | Compression sealing pipeline quick-mounting joint |
| CN113324118A (en) * | 2020-02-28 | 2021-08-31 | 浙江三花智能控制股份有限公司 | Pipeline connecting structure |
| CN216143315U (en) * | 2021-06-17 | 2022-03-29 | 江苏英希权科技有限公司 | Aluminum pipe for sealing and protecting outer surface of aluminum-plastic pipe |
| CN216813320U (en) * | 2022-03-22 | 2022-06-24 | 十堰江大汽车管业有限公司 | Quick connector with secondary seal structure |
| CN219140092U (en) * | 2022-12-30 | 2023-06-06 | 盾安环境技术有限公司 | Pipeline connection structure and stop valve |
-
2023
- 2023-10-24 CN CN202311379433.8A patent/CN117128372B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396766A (en) * | 1989-06-19 | 1991-04-22 | Furukawa Electric Co Ltd:The | Sealing method for shafts and pipes |
| CN108869911A (en) * | 2018-08-30 | 2018-11-23 | 杭州赛威斯真空技术有限公司 | A kind of glass tube seal structure and encapsulating method for ultra-high vacuum system |
| CN113324118A (en) * | 2020-02-28 | 2021-08-31 | 浙江三花智能控制股份有限公司 | Pipeline connecting structure |
| CN111853384A (en) * | 2020-07-07 | 2020-10-30 | 邱强生 | Compression sealing pipeline quick-mounting joint |
| CN216143315U (en) * | 2021-06-17 | 2022-03-29 | 江苏英希权科技有限公司 | Aluminum pipe for sealing and protecting outer surface of aluminum-plastic pipe |
| CN216813320U (en) * | 2022-03-22 | 2022-06-24 | 十堰江大汽车管业有限公司 | Quick connector with secondary seal structure |
| CN219140092U (en) * | 2022-12-30 | 2023-06-06 | 盾安环境技术有限公司 | Pipeline connection structure and stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117128372A (en) | 2023-11-28 |
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