CN108709038B - Pipe fitting connection structure - Google Patents
Pipe fitting connection structure Download PDFInfo
- Publication number
- CN108709038B CN108709038B CN201810679668.1A CN201810679668A CN108709038B CN 108709038 B CN108709038 B CN 108709038B CN 201810679668 A CN201810679668 A CN 201810679668A CN 108709038 B CN108709038 B CN 108709038B
- Authority
- CN
- China
- Prior art keywords
- locking
- sleeve
- pipe fitting
- fastening
- wall
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 62
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/127—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using hooks hinged about an axis
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/138—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using an axially movable sleeve
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/20—Joints tightened by toggle-action levers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to a pipe fitting connecting structure, which comprises a connecting sleeve, a first locking assembly, a second locking assembly, a first sealing ring, a second sealing ring and a connecting buckle, wherein a first mounting groove and a second mounting groove which are opposite to each other are respectively arranged at two ends of the connecting sleeve; the first locking component is used for preventing the first pipe fitting from moving away from the connecting sleeve; the second locking component is used for preventing the second pipe fitting from moving away from the connecting sleeve; the first sealing ring is used for sealing a gap between the first pipe fitting and the first sealing groove; the second sealing ring is used for sealing a gap between the second pipe fitting and the second sealing groove; the connecting buckle is used for enabling one end of the first locking assembly to be in butt fit with one end of the second locking assembly. The pipe fitting connecting structure has good sealing performance, can prevent the circulation medium in the pipe from leaking, and can reduce the resource waste and eliminate the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of pipe fitting connection, in particular to a pipe fitting connection structure.
Background
In the fields of constructional engineering, industrial production and the like, pipeline connection of different waterways, gas circuits and oil circuits is often involved, and then a pipe connection structure is needed to realize connection among different pipelines. However, the conventional pipe connection structure has certain errors in the manufacturing, matching or installation process, so that the flowing medium in the pipe is easy to leak, such as water leakage or air leakage, resource waste is easy to occur, and certain potential safety hazards may exist.
Disclosure of Invention
Based on this, it is necessary to provide a pipe connection structure which has a good sealing performance, can prevent leakage of the circulating medium in the pipe, can reduce resource waste and eliminate potential safety hazards.
The pipe fitting connecting structure comprises a connecting sleeve, a first locking assembly, a second locking assembly, a first sealing ring, a second sealing ring and a connecting buckle, wherein a first mounting groove and a second mounting groove which are opposite to each other are respectively formed in two ends of the connecting sleeve, the first mounting groove is used for inserting a first pipe fitting, and the second mounting groove is used for inserting a second pipe fitting; the first locking component is sleeved outside the first pipe fitting and is used for preventing the first pipe fitting from moving in a direction away from the connecting sleeve; the second locking component is sleeved outside the second pipe fitting and is used for preventing the second pipe fitting from moving in a direction away from the connecting sleeve; the first sealing ring is arranged in the first mounting groove and is used for sealing a gap between the first pipe fitting and the first sealing groove; the second sealing ring is arranged in the second mounting groove and is used for sealing a gap between the second pipe fitting and the second sealing groove; the connecting buckle is used for enabling one end of the first locking assembly to be in butt fit with one end of the second locking assembly.
When the pipe fitting connecting structure is used, the first locking assembly is sleeved outside the first pipe fitting, the second locking assembly is sleeved outside the second pipe fitting, then the first sealing ring is placed in the first mounting groove, the second sealing ring is placed in the second mounting groove, the end part of the first pipe fitting is inserted in the first mounting groove, the end part of the second pipe fitting is inserted in the second mounting groove, the connecting buckle is fastened, one end of the first locking assembly is abutted against one end of the second locking assembly, and the connection of the first pipe fitting and the second pipe fitting is completed. Because the first locking component can prevent that first pipe fitting from moving to the direction of keeping away from connecting sleeve, and the second locking component can prevent that the second pipe fitting from moving to the direction of keeping away from connecting sleeve, the connector link is with first locking component and second locking component fastening again, make first pipe fitting and second pipe fitting produce relative pressure, make the tip of first pipe fitting compress tightly first sealing washer, and the tip of second pipe fitting compresses tightly the second sealing washer, therefore have better sealing performance, can compensate pipe fitting connection structure and leak because of manufacturing, cooperation or installation error cause the intraductal circulation medium of pipe, reduce the wasting of resources and eliminate the potential safety hazard.
In one embodiment, the first locking assembly comprises a first locking sleeve and a first joint, the first locking sleeve is sleeved outside the first pipe fitting, the first joint is sleeved outside the first locking sleeve and the connecting sleeve, and the first joint is used for applying radial pressure to the first locking sleeve so as to prevent the first pipe fitting from moving in a direction away from the connecting sleeve; the second locking assembly comprises a second locking sleeve and a second connector, the second locking sleeve is sleeved outside the second pipe fitting, the second connector is sleeved outside the second locking sleeve and the connecting sleeve, the second connector is used for applying radial pressure to the second locking sleeve so as to prevent the second pipe fitting from moving in the direction away from the connecting sleeve, and one end of the first connector is matched with one end of the second connector in a butt joint mode. The arrangement enables the connection between the first pipe fitting and the connecting sleeve and the connection between the second pipe fitting and the connecting sleeve to be tight, and the leakage of circulating media in the first pipe fitting and the second pipe fitting is prevented.
In one embodiment, the first locking sleeve is provided with a first locking groove extending along the axial direction of the first locking sleeve, one end of the first locking groove, which is close to the connecting sleeve, is open, one end of the first locking groove, which is far away from the connecting sleeve, is closed, the plurality of first locking grooves are arranged along the circumferential direction of the first locking sleeve, and a first locking piece is formed between two adjacent first locking grooves; the second lock sleeve is provided with a second lock groove extending along the axial direction of the second lock sleeve, the second lock groove is close to one end opening of the connecting sleeve, the second lock groove is far away from one end of the connecting sleeve and is closed, the second lock grooves are multiple and are circumferentially arranged along the second lock sleeve, two second lock grooves are adjacent to each other, a second lock piece is formed between the second lock grooves, and locking teeth are arranged on the inner walls of the first lock pieces and the second lock pieces and are used for clamping the first pipe fitting or the second pipe fitting. When the first pipe fitting is inserted into the first locking sleeve, the plurality of first locking pieces can generate certain deformation and tightly hold the first pipe fitting, and as the locking teeth are arranged on the first locking pieces, the friction force between the first locking pieces and the outer wall of the first pipe fitting is increased, so that the first pipe fitting can be further prevented from moving in the direction away from the connecting sleeve, and the connection tightness of the first pipe fitting and the connecting sleeve is improved; similarly, when the second pipe fitting is inserted into the second locking sleeve, the second locking pieces can generate certain deformation and tightly hold the second pipe fitting, and the friction force between the second locking pieces and the outer wall of the second pipe fitting is increased due to the locking teeth arranged on the second locking pieces, so that the second pipe fitting can be further prevented from moving in the direction away from the connecting sleeve, and the connection tightness of the second pipe fitting and the connecting sleeve is improved.
In one embodiment, one end of the first locking piece, which is close to the connecting sleeve, is bent towards the center of the first locking sleeve to form a first clamping claw part; and one end of the second locking piece, which is close to the connecting sleeve, is bent towards the center of the second locking sleeve to form a second clamping part. The first clamping claw part can increase the pressure between the first locking sleeve and the first pipe fitting, so that the first locking sleeve further holds the first pipe fitting tightly; the second clamping claw part can increase the pressure between the second locking sleeve and the second pipe fitting, so that the second locking sleeve further holds the second pipe fitting tightly.
In one embodiment, a first inclined surface is arranged on the outer wall of the first locking piece, the first inclined surface is opposite to the locking teeth on the first locking piece, the first inclined surface is gradually far away from the center of the first locking sleeve along the direction of approaching the connecting sleeve, and a first stop surface matched with the first inclined surface is arranged on the inner wall of the first joint; the outer wall of the second locking piece is provided with a second inclined surface, the second inclined surface is opposite to the locking teeth on the second locking piece, the second inclined surface is gradually far away from the center of the first locking sleeve along the direction close to the connecting sleeve, and the inner wall of the second joint is provided with a second stop surface matched with the second inclined surface. When the first locking sleeve moves in a direction away from the connecting sleeve, the first inclined surface abuts against the first stop surface, and if the first locking sleeve continues to move in a direction away from the connecting sleeve, the first joint can generate pressure towards the first pipe fitting on the first locking sleeve, so that the locking teeth on the first locking piece can more forcefully clamp the first pipe fitting, and the first pipe fitting is prevented from moving in a direction away from the connecting sleeve; when the second locking sleeve moves in the direction away from the connecting sleeve, the second inclined surface abuts against the second stop surface, if the second locking sleeve continues to move in the direction away from the connecting sleeve, the second joint can generate pressure towards the second pipe fitting to the second locking sleeve, so that the locking teeth on the second locking piece can more forcefully clamp the second pipe fitting, and the second pipe fitting is prevented from moving in the direction away from the connecting sleeve. This arrangement can further improve the firmness and tightness of the connection of the first pipe fitting and the second pipe fitting.
In one embodiment, a first boss is arranged on the outer wall of the first locking sleeve, and the first boss abuts against the inner wall of the first joint; and a second boss is arranged on the outer wall of the second locking sleeve and is propped against the inner wall of the second joint. This arrangement prevents the first locking sleeve from sliding out of the first connector and also prevents the second locking sleeve from sliding out of the second connector.
In one embodiment, the connecting buckle comprises a first buckling component and a second buckling component, the first buckling component is fixed on the outer wall of the first locking component, the second buckling component is arranged on the outer wall of the second locking component, and the first buckling component is used for being in clamping fit with the second buckling component. The first fastening component and the second fastening component are in clamping fit, so that the pressure between the first locking component and the second locking component can be increased, and the pressure between the first pipe fitting and the first sealing ring and the pressure between the second pipe fitting and the second sealing ring can be increased, the sealing performance of the joint of the first pipe fitting and the second pipe fitting can be improved, and the leakage of circulating media in the first pipe fitting and the second pipe fitting can be reduced.
In one embodiment, the first fastening component includes a first fastening tooth, a first fastening ring and a second fastening ring, the second fastening component includes a second fastening tooth, the first fastening tooth and the first fastening ring are both fixed on the outer wall of the first locking component, the first fastening ring is used for being in tight fit with the first fastening tooth, the second fastening ring is rotatably connected with the first fastening ring, the second fastening tooth is fixed on the outer wall of the second locking component, and the second fastening ring is used for being in tight fit with the second fastening tooth. The connecting buckle is simple in structure, convenient to use and suitable for freehand operation.
In one embodiment, the number of the connecting buckles is at least two, and the first buckling assemblies of the at least two connecting buckles are uniformly distributed along the circumferential direction of the outer wall of the first locking assembly. The arrangement can increase the pressure between the end part of the first pipe fitting and the first sealing ring as well as between the end part of the second pipe fitting and the second sealing ring, so that the pressure distribution between the end part of the first pipe fitting and the first sealing ring and between the end part of the second pipe fitting and the second sealing ring is more uniform, and the tightness of the joint of the first pipe fitting and the second pipe fitting is improved.
In one embodiment, the first seal ring and the second seal ring are both V-shaped seal rings. When a certain pressure is applied to the V-shaped sealing ring, the lip tip of the V-shaped sealing ring can change the contact shape and increase the contact stress, and the lip is tightly attached to the end part of the first pipe fitting and the end part of the second pipe fitting, so that a better sealing effect is achieved.
Drawings
FIG. 1 is an exploded view of a pipe connection according to an embodiment of the present invention;
FIG. 2 is a schematic view of the pipe connection structure shown in FIG. 1;
FIG. 3 is a schematic view illustrating the installation of the first locking assembly and the pipe fitting shown in FIG. 1;
FIG. 4 is a schematic view illustrating the installation of the first locking assembly, the connecting sleeve, the first seal ring, the second seal ring and the pipe fitting shown in FIG. 1;
fig. 5 is a schematic view illustrating installation of the first locking assembly, the connecting sleeve, the first sealing ring, the second locking assembly and the pipe fitting shown in fig. 1.
Description of the reference numerals
100. The connecting sleeve, 110, the first mounting groove, 200, the first locking assembly, 210, the first locking sleeve, 211, the first locking groove, 212, the first locking tab, 213, the first clamping jaw, 214, the first boss, 215, the first inclined surface, 220, the first joint, 221, the first stop surface, 300, the second locking assembly, 310, the second locking sleeve, 311, the second locking groove, 312, the second locking tab, 313, the second clamping jaw, 314, the second boss, 315, the second inclined surface, 320, the second joint, 321, the second stop surface, 410, the first sealing ring, 420, the second sealing ring, 500, the connecting buckle, 511, the first buckling tooth, 512, the first buckling ring, 513, the second buckling ring, 521, the second buckling tooth, 600, the locking tooth, 710, the first pipe fitting, 720, the second pipe fitting, 800, and the mounting tool.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, an embodiment of the present invention provides a pipe connection structure, which includes a connection sleeve 100, a first locking assembly 200, a second locking assembly 300, a first sealing ring 410, a second sealing ring 420, and a connection buckle 500. The two ends of the connecting sleeve 100 are respectively provided with a first mounting groove 110 and a second mounting groove which are opposite, wherein the first mounting groove 110 is used for inserting the first pipe 710, and the second mounting groove is used for inserting the second pipe 720. The first locking assembly 200 is sleeved outside the first pipe 710, and the first locking assembly 200 is used for preventing the first pipe 710 from moving away from the connecting sleeve 100. The second locking assembly 300 is sleeved outside the second pipe fitting 720, and the second locking assembly 300 is used for preventing the second pipe fitting 720 from moving away from the connecting sleeve 100. The first sealing ring 410 is disposed in the first mounting groove 110, and the first sealing ring 410 is used to seal a gap between the first pipe 710 and the first mounting groove 110. The second sealing ring 420 is disposed in the second mounting groove, and the second sealing ring 420 is used for sealing a gap between the second pipe 720 and the second mounting groove. The connector link 500 is used to enable one end of the first locking assembly 200 and one end of the second locking assembly 300 to be in abutting engagement.
When the pipe fitting connecting structure is used, the first locking assembly 200 is sleeved outside the first pipe fitting 710, the second locking assembly 300 is sleeved outside the second pipe fitting 720, then the first sealing ring 410 is placed in the first mounting groove 110, the second sealing ring 420 is placed in the second mounting groove, the first pipe fitting 710 is inserted in the first mounting groove 110, the second pipe fitting 720 is inserted in the second mounting groove, the connecting buckle 500 is fastened, one end of the first locking assembly 200 and one end of the second locking assembly 300 are abutted to each other, and the connection of the first pipe fitting 710 and the second pipe fitting 720 is completed. Because the first locking assembly 200 can prevent the first pipe fitting 710 from moving in a direction away from the connecting sleeve 100, and the second locking assembly 300 can prevent the second pipe fitting 720 from moving in a direction away from the connecting sleeve 100, the connecting buckle 500 fastens the first locking assembly 200 and the second locking assembly 300, the first pipe fitting 710 and the second pipe fitting 720 generate relative pressure, so that the end part of the first pipe fitting 710 presses the first sealing ring 410, and the end part of the second pipe fitting 720 presses the second sealing ring 420, the sealing performance is better, the leakage of circulating medium in the pipe due to manufacturing, matching or installation errors of the pipe fitting connecting structure can be compensated, the resource waste is reduced, and the potential safety hazard is eliminated. The pipe fitting connecting structure can be suitable for connecting PEX pipes, PVC pipes, aluminum-plastic composite pipes or pipe fittings made of other materials.
In this embodiment, one end of the first locking assembly 200 and one end of the second locking assembly 300 are directly abutted and matched. In other embodiments, one end of the first locking assembly 200 and one end of the second locking assembly 300 may also be indirectly in abutting engagement, for example, a third seal ring or other element may be provided between one end of the first locking assembly 200 and one end of the second locking assembly 300.
In this embodiment, the first seal ring 410 and the second seal ring 420 are V-shaped seal rings. When a certain pressure is applied to the V-shaped seal ring, the lip tip of the V-shaped seal ring changes the contact shape and increases the contact stress, so that the lip is tightly attached to the end of the first pipe 710 and the lip is tightly attached to the end of the second pipe 720, thereby having a better sealing effect.
Specifically, as shown in fig. 1 and 5, the first locking assembly 200 includes a first locking sleeve 210 and a first joint 220, the first locking sleeve 210 is sleeved outside the first pipe 710, the first joint 220 is sleeved outside the first locking sleeve 210 and the connecting sleeve 100, and the first joint 220 is used for applying radial pressure to the first locking sleeve 210 to prevent the first pipe 710 from moving away from the connecting sleeve 100; the second locking assembly 300 includes a second locking sleeve 310 and a second connector 320, the second locking sleeve 310 is sleeved outside the second pipe 720, the second connector 320 is sleeved outside the second locking sleeve 310 and the connecting sleeve 100, the second connector 320 is used for applying radial pressure to the second locking sleeve 310 to prevent the second pipe 720 from moving in a direction away from the connecting sleeve 100, and one end of the first connector 220 is in abutting fit with one end of the second connector 320. This arrangement enables a tight connection between the first pipe 710 and the connection sleeve 100 and between the second pipe 720 and the connection sleeve 100, preventing leakage of the flow medium in the first pipe 710 and the second pipe 720.
Further, the first locking sleeve 210 is provided with first locking grooves 211 extending in an axial direction of the first locking sleeve 210, the first locking grooves 211 are close to an opening of one end of the connecting sleeve 100, one end of the first locking grooves 211 far away from the connecting sleeve 100 is closed, the plurality of first locking grooves 211 are arranged along a circumferential direction of the first locking sleeve 210, and one first locking piece 212 is formed between two adjacent first locking grooves 211. The second locking sleeve 310 is provided with a second locking groove 311 extending along the axial direction of the second locking sleeve 310, the second locking groove 311 is close to an opening of one end of the connecting sleeve 100, one end of the second locking groove 311 away from the connecting sleeve 100 is closed, the second locking grooves 311 are multiple and are arranged along the circumferential direction of the second locking sleeve 310, and a second locking piece 312 is formed between two adjacent second locking grooves 311. The inner walls of the first locking piece 212 and the second locking piece 312 are provided with locking teeth 600, and the locking teeth 600 are used for clamping the first pipe 710 or the second pipe 720. When the first pipe fitting 710 is inserted into the first locking sleeve 210, the plurality of first locking pieces 212 can generate certain deformation and hold the first pipe fitting 710 tightly, and as the locking teeth 600 are arranged on the first locking pieces 212, the friction force between the first locking pieces 212 and the outer wall of the first pipe fitting 710 is increased, so that the first pipe fitting 710 can be further prevented from moving in the direction away from the connecting sleeve 100, and the connection tightness of the first pipe fitting 710 and the connecting sleeve 100 is improved; similarly, when the second pipe fitting 720 is inserted into the second locking sleeve 310, the plurality of second locking pieces 312 can generate a certain deformation and hold the second pipe fitting 720 tightly, and as the locking teeth 600 are arranged on the second locking pieces 312, the friction force between the second locking pieces 312 and the outer wall of the second pipe fitting 720 is increased, so that the second pipe fitting 720 can be further prevented from moving in the direction away from the connecting sleeve 100, and the connection tightness of the second pipe fitting 720 and the connecting sleeve 100 is improved.
Further, the end of the first locking piece 212 near the connecting sleeve 100 is bent towards the center of the first locking sleeve 210 to form a first clamping part 213; the end of the second locking piece 312 near the connecting sleeve 100 is bent toward the center of the second locking sleeve 310 to form a second locking claw 313. The first clamping claw 213 can increase the pressure between the first locking sleeve 210 and the first pipe 710, so that the first locking sleeve 210 further holds the first pipe 710 tightly; the second locking claw 313 may increase the pressure between the second locking sleeve 310 and the second pipe 720, so that the second locking sleeve 310 further hugs the second pipe 720.
In this embodiment, as shown in fig. 5, a first inclined surface 215 is disposed on an outer wall of the first locking piece 212, the first inclined surface 215 is disposed opposite to the locking tooth 600 on the first locking piece 212, the first inclined surface 215 is gradually far away from the center of the first locking sleeve 210 along the direction approaching the connecting sleeve 100, and a first stop surface 221 matched with the first inclined surface 215 is disposed on an inner wall of the first joint 220. When the first locking sleeve 210 moves away from the connection sleeve 100, the first inclined surface 215 abuts against the first stop surface 221, and if the first locking sleeve 210 continues to move away from the connection sleeve 100, the first joint 220 will generate a pressure on the first locking sleeve 210 towards the first pipe 710, so that the locking teeth 600 on the first locking piece 212 more strongly clamp the first pipe 710, thereby preventing the first pipe 710 from moving away from the connection sleeve 100.
The outer wall of the second locking piece 312 is provided with a second inclined surface 315, the second inclined surface 315 is opposite to the locking teeth 600 on the second locking piece 312, the second inclined surface 315 is gradually far away from the center of the second locking sleeve 310 along the direction close to the connecting sleeve 100, and the inner wall of the second joint 320 is provided with a second stop surface 321 matched with the second inclined surface 315. When the second locking sleeve 310 moves away from the connecting sleeve 100, the second inclined surface 315 abuts against the second stop surface 321, and if the second locking sleeve 310 continues to move away from the connecting sleeve 100, the second joint 320 will generate a pressure on the second locking sleeve 310 towards the second pipe 720, so that the locking teeth 600 on the second locking piece 312 more strongly clamp the second pipe 720, thereby preventing the second pipe 720 from moving away from the connecting sleeve 100. This arrangement may further improve the firmness and tightness of the connection of the first tube member 710 and the second tube member 720.
Further, a first boss 214 is disposed on the outer wall of the first locking sleeve 210, and the first boss 214 abuts against the inner wall of the first joint 220; the outer wall of the second locking sleeve 310 is provided with a second boss 314, and the second boss 314 abuts against the inner wall of the second connector 320. This arrangement prevents the first locking sleeve 210 from sliding out of the first connector 220 and also prevents the second locking sleeve 310 from sliding out of the second connector 320.
In this embodiment, as shown in fig. 1 and 2, the connecting buckle 500 includes a first buckling component and a second buckling component, the first buckling component is fixed on the outer wall of the first locking component 200, the second buckling component is disposed on the outer wall of the second locking component 300, and the first buckling component is used for being in clamping fit with the second buckling component. The first fastening component and the second fastening component are in clamping fit, so that the pressure between the first locking component 200 and the second locking component 300 can be increased, and the pressure between the first pipe 710 and the first sealing ring 410 and the pressure between the second pipe 720 and the second sealing ring 420 can be increased, so that the sealing performance of the joint of the first pipe 710 and the second pipe 720 can be improved, and the leakage of the circulating medium in the first pipe 710 and the second pipe can be reduced.
Specifically, the first fastening assembly includes a first fastening tooth 511, a first fastening ring 512 and a second fastening ring 513, the second fastening assembly includes a second fastening tooth 521, the first fastening tooth 511 and the first fastening ring 512 are both fixed on the outer wall of the first locking assembly 200, the first fastening ring 512 is used for being in clamping fit with the first fastening tooth 511, the second fastening ring 513 is rotatably connected with the first fastening ring 512, the second fastening tooth 521 is fixed on the outer wall of the second locking assembly 300, and the second fastening ring 513 is used for being in clamping fit with the second fastening tooth 521. The connecting buckle 500 is simple in structure, convenient to use and suitable for freehand operation.
Optionally, the number of the connecting buckles 500 is at least two, and the first buckle components of the at least two connecting buckles 500 are uniformly arranged along the circumferential direction of the outer wall of the first locking component 200. The arrangement can increase the pressure between the end of the first pipe 710 and the first sealing ring 410, the end of the second pipe 720 and the second sealing ring 420, and make the pressure distribution between the end of the first pipe 710 and the first sealing ring 410, the end of the second pipe 720 and the second sealing ring 420 more uniform, so as to improve the tightness of the joint between the first pipe 710 and the second pipe 720. In this embodiment, the number of the connecting buckles 500 is three, and the first buckling assemblies of the three connecting buckles 500 are uniformly arranged along the circumferential direction of the outer wall of the first locking assembly 200. Correspondingly, the second fastening components of the three connecting fasteners 500 are uniformly arranged along the outer wall circumference of the second locking component 300. Of course, in other embodiments, the number of the connecting buckles 500 can be flexibly set according to actual needs.
Alternatively, first joint 220, second joint 320, and connector link 500 are all made of copper chrome plating material. The copper chrome plating material has better rust resistance, can prolong the service life of the first joint 220, the second joint 320 and the connecting buckle 500, and has higher cost performance.
When the pipe connecting structure is used, the first joint 220 is sleeved outside the first locking sleeve 210, the first pipe 710 is inserted into the first locking sleeve 210, the installation tool 800 is inserted into a gap between the first joint 220 and the pipe 700, the installation tool 800 pushes the first pipe 710 to a proper position, the first boss 214 is abutted against the inner wall of the first joint 220, and the locking teeth 600 on the first locking piece 212 are tightly clamped outside the first pipe 710, as shown in fig. 3. Similarly, the second connector 320 is sleeved outside the second locking sleeve 310, and the second pipe 720 is installed in the second locking sleeve 310. Next, as shown in fig. 4, the first seal ring 410 and the second seal ring 420 are placed in the first installation groove 110 and the second installation groove, respectively, the first pipe 710 is inserted into the first installation groove, and the second pipe 720 is inserted into the second installation groove. Finally, the connecting buckle 500 is fastened, so that one end of the first joint 220 is in abutting fit with one end of the second joint 320, and the installation of the pipe connecting structure is completed, as shown in fig. 5. The pipe fitting connecting structure is strong in tightness, can adapt to various installation environments, is quick and convenient to install, and can be installed by hands.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in 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 protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The pipe fitting connecting structure is characterized by comprising a connecting sleeve, a first locking assembly, a second locking assembly, a first sealing ring, a second sealing ring and a connecting buckle, wherein a first mounting groove and a second mounting groove which are opposite to each other are respectively arranged at two ends of the connecting sleeve, the first mounting groove is used for inserting a first pipe fitting, and the second mounting groove is used for inserting a second pipe fitting; the first locking component is sleeved outside the first pipe fitting and is used for preventing the first pipe fitting from moving in a direction away from the connecting sleeve; the second locking component is sleeved outside the second pipe fitting and is used for preventing the second pipe fitting from moving in a direction away from the connecting sleeve; the first sealing ring is arranged in the first mounting groove and is used for sealing a gap between the first pipe fitting and the first mounting groove; the second sealing ring is arranged in the second mounting groove and is used for sealing a gap between the second pipe fitting and the second mounting groove; the connecting buckle is used for enabling one end of the first locking component to be in abutting fit with one end of the second locking component;
the first locking assembly comprises a first locking sleeve and a first connector, the first locking sleeve is sleeved outside the first pipe fitting, the first connector is sleeved outside the first locking sleeve and the connecting sleeve, and the first connector is used for applying radial pressure to the first locking sleeve so as to prevent the first pipe fitting from moving in a direction away from the connecting sleeve; the second locking assembly comprises a second locking sleeve and a second connector, the second locking sleeve is sleeved outside the second pipe fitting, the second connector is sleeved outside the second locking sleeve and the connecting sleeve, the second connector is used for applying radial pressure to the second locking sleeve so as to prevent the second pipe fitting from moving in a direction away from the connecting sleeve, and one end of the first connector is in butt fit with one end of the second connector;
the outer wall of the first locking sleeve is provided with a first inclined surface and a first boss, the first inclined surface is gradually far away from the center of the first locking sleeve along the direction of approaching the connecting sleeve, the inner wall of the first joint is provided with a first stop surface matched with the first inclined surface, and the first boss abuts against the inner wall of the first joint to limit the first locking sleeve; the outer wall of second lock sleeve is equipped with second inclined plane and second boss, the second inclined plane is kept away from gradually along being close to connecting sleeve's direction the center of second lock sleeve, be equipped with on the inner wall of second joint with second inclined plane matched with second backstop face, the second boss with the inner wall of second joint offsets, in order to right the second lock sleeve is spacing.
2. The pipe fitting connecting structure according to claim 1, wherein the first locking sleeve is provided with first locking grooves extending in the axial direction of the first locking sleeve, one end of each first locking groove close to the connecting sleeve is opened, one end of each first locking groove far away from the connecting sleeve is closed, a plurality of first locking grooves are arranged along the circumferential direction of the first locking sleeve, and one first locking piece is formed between two adjacent first locking grooves; the second lock sleeve is provided with a second lock groove extending along the axial direction of the second lock sleeve, the second lock groove is close to one end opening of the connecting sleeve, the second lock groove is far away from one end of the connecting sleeve and is closed, the second lock grooves are multiple and are circumferentially arranged along the second lock sleeve, two second lock grooves are adjacent to each other, a second lock piece is formed between the second lock grooves, and locking teeth are arranged on the inner walls of the first lock pieces and the second lock pieces and are used for clamping the first pipe fitting or the second pipe fitting.
3. The pipe fitting connecting structure according to claim 2, wherein one end of the first locking piece, which is close to the connecting sleeve, is bent towards the center of the first locking sleeve to form a first clamping part; and one end of the second locking piece, which is close to the connecting sleeve, is bent towards the center of the second locking sleeve to form a second clamping part.
4. The pipe fitting connecting structure according to claim 2, wherein the first inclined surface is provided on an outer wall of the first locking piece, and the first inclined surface is provided opposite to the locking teeth on the first locking piece; the outer wall of the second locking piece is provided with the second inclined surface, and the second inclined surface is opposite to the locking teeth on the second locking piece.
5. A pipe connection structure according to any one of claims 1 to 4, wherein the connector comprises a first fastening component and a second fastening component, the first fastening component being provided on an outer wall of the first locking component, the second fastening component being provided on an outer wall of the second locking component, the first fastening component being adapted to be in a clamping fit with the second fastening component.
6. The pipe fitting connection of claim 5, wherein the first fastening assembly comprises a first fastening tooth, a first fastening ring, and a second fastening ring, wherein the second fastening assembly comprises a second fastening tooth, wherein the first fastening tooth is fixed on an outer wall of the first locking assembly, the first fastening ring is rotatably connected with the outer wall of the first locking assembly, the first fastening ring is used for being in a snap fit with the first fastening tooth, the second fastening ring is rotatably connected with the first fastening ring, the second fastening tooth is fixed on the outer wall of the second locking assembly, and the second fastening ring is used for being in a snap fit with the second fastening tooth.
7. A pipe connection structure according to claim 5, wherein the number of the connection buckles is at least two, and the first fastening components of at least two connection buckles are uniformly arranged along the circumferential direction of the outer wall of the first locking component.
8. A pipe connection according to any one of claims 1 to 4, wherein the first and second seal rings are V-shaped seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679668.1A CN108709038B (en) | 2018-06-27 | 2018-06-27 | Pipe fitting connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679668.1A CN108709038B (en) | 2018-06-27 | 2018-06-27 | Pipe fitting connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709038A CN108709038A (en) | 2018-10-26 |
| CN108709038B true CN108709038B (en) | 2024-04-05 |
Family
ID=63873077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810679668.1A Active CN108709038B (en) | 2018-06-27 | 2018-06-27 | Pipe fitting connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108709038B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610753A (en) * | 2020-12-04 | 2021-04-06 | 北京京润园林绿化工程有限公司 | Connection structure between pipelines for gardens |
| CN112682599A (en) * | 2020-12-18 | 2021-04-20 | 铜陵德兴机械制造有限责任公司 | Novel top-blown converter spray gun natural gas pipe quick connector |
| CN116115158B (en) * | 2023-01-10 | 2024-01-05 | 南京诺源医疗器械有限公司 | Endoscope |
| CN116498903B (en) * | 2023-06-29 | 2023-08-22 | 普林宁生态(常州)有限公司 | Connecting structure of sewage detection equipment |
| CN116533895B (en) * | 2023-07-05 | 2023-09-15 | 荣成康派斯新能源车辆股份有限公司 | Caravan sewage draining device with vibration function and use method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB689358A (en) * | 1950-04-06 | 1953-03-25 | Karl Ludwig Lanninger | Flexible pipe coupling |
| GB861531A (en) * | 1958-06-07 | 1961-02-22 | John Huggan And Co Ltd | Improvements in or relating to couplings for connecting pipe-lines, conduits, hose and the like |
| CN2360710Y (en) * | 1997-07-12 | 2000-01-26 | 刘超 | Fast connecting tube articles |
| KR200213672Y1 (en) * | 2000-09-25 | 2001-02-15 | 김용근 | Piping connection structure |
| CN1570444A (en) * | 2004-05-13 | 2005-01-26 | 葛文宇 | Method for connecting lever-type rapid locking pipes |
| CN201071991Y (en) * | 2007-05-14 | 2008-06-11 | 淄博新环热塑材料有限公司 | Pawl locking type pipe joint |
| CN205606051U (en) * | 2016-04-01 | 2016-09-28 | 大连艺洁灌溉机械有限公司 | A quick -operation joint subassembly that is used for capstan winch formula water conservation sprinkling irrigation quick -witted |
| CN206637157U (en) * | 2017-02-24 | 2017-11-14 | 合肥荣丰包装制品有限公司 | Expects pipe snap joint is used in a kind of packing articles production |
| CN206723646U (en) * | 2017-03-01 | 2017-12-08 | 日丰企业（佛山）有限公司 | Pipe joint |
| CN208651912U (en) * | 2018-06-27 | 2019-03-26 | 日丰企业（佛山）有限公司 | Pipe fitting joint structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7025390B2 (en) * | 2003-02-20 | 2006-04-11 | Wolf Creek Company, Inc. | Method and apparatus for connecting coupler fittings to conduit sections |
-
2018
- 2018-06-27 CN CN201810679668.1A patent/CN108709038B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB689358A (en) * | 1950-04-06 | 1953-03-25 | Karl Ludwig Lanninger | Flexible pipe coupling |
| GB861531A (en) * | 1958-06-07 | 1961-02-22 | John Huggan And Co Ltd | Improvements in or relating to couplings for connecting pipe-lines, conduits, hose and the like |
| CN2360710Y (en) * | 1997-07-12 | 2000-01-26 | 刘超 | Fast connecting tube articles |
| KR200213672Y1 (en) * | 2000-09-25 | 2001-02-15 | 김용근 | Piping connection structure |
| CN1570444A (en) * | 2004-05-13 | 2005-01-26 | 葛文宇 | Method for connecting lever-type rapid locking pipes |
| CN201071991Y (en) * | 2007-05-14 | 2008-06-11 | 淄博新环热塑材料有限公司 | Pawl locking type pipe joint |
| CN205606051U (en) * | 2016-04-01 | 2016-09-28 | 大连艺洁灌溉机械有限公司 | A quick -operation joint subassembly that is used for capstan winch formula water conservation sprinkling irrigation quick -witted |
| CN206637157U (en) * | 2017-02-24 | 2017-11-14 | 合肥荣丰包装制品有限公司 | Expects pipe snap joint is used in a kind of packing articles production |
| CN206723646U (en) * | 2017-03-01 | 2017-12-08 | 日丰企业（佛山）有限公司 | Pipe joint |
| CN208651912U (en) * | 2018-06-27 | 2019-03-26 | 日丰企业（佛山）有限公司 | Pipe fitting joint structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108709038A (en) | 2018-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108709038B (en) | Pipe fitting connection structure | |
| US6260851B1 (en) | Composite gasket and assembly comprising such a gasket | |
| KR102589007B1 (en) | Block fitting and seal structures | |
| GB2503880A (en) | Insert for Pipes | |
| US9383050B1 (en) | Quick removal plumbing fitting | |
| US3423111A (en) | Plain end pipe joint | |
| US20090273184A1 (en) | Self restrained joint for ductile iron pipe and fittings | |
| US9772055B2 (en) | Coupling for pipe elements | |
| JP2011519408A (en) | Cross-section design gasket for internally coated piping | |
| KR20170055475A (en) | Coupling and seal | |
| US6983960B2 (en) | Mechanical joint bell adapter for polyethylene pipe | |
| US20110254266A1 (en) | Self-restraining system for belled pipe | |
| US20230204136A1 (en) | Non-metallic fluid coupling | |
| US4909548A (en) | Compound-taper flange assembly | |
| US20110127769A1 (en) | Pipe coupler | |
| US11603950B2 (en) | Development of fuseal mechanical joint | |
| IE48828B1 (en) | Pipe joints | |
| CA2822136C (en) | Coupling gaskets and associated methods | |
| KR20160128012A (en) | Gas-tight increasing type gasket by inner pressure and flange pipe for the same | |
| WO2019117916A1 (en) | Connecting ring with an axial limiting feature | |
| KR200480413Y1 (en) | Pipe joint structure | |
| US11519542B2 (en) | Coupling assembly for pipes | |
| JP7356655B2 (en) | pipe fittings | |
| TWI717060B (en) | Pipe joint for preventing loosening of a pipe and fixing ring thereof | |
| JP5508200B2 (en) | Piping material and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |