CN116624684A - Pneumatic quick connector - Google Patents
Pneumatic quick connector Download PDFInfo
- Publication number
- CN116624684A CN116624684A CN202210126947.1A CN202210126947A CN116624684A CN 116624684 A CN116624684 A CN 116624684A CN 202210126947 A CN202210126947 A CN 202210126947A CN 116624684 A CN116624684 A CN 116624684A
- Authority
- CN
- China
- Prior art keywords
- connector
- pneumatic quick
- release ring
- quick connector
- spring seat
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 7
- 210000003437 trachea Anatomy 0.000 claims abstract description 6
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 5
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 5
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920003231 aliphatic polyamide Polymers 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052802 copper Inorganic materials 0.000 abstract description 12
- 239000010949 copper Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 7
- 238000012797 qualification Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram 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
- 238000003754 machining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a pneumatic quick connector, which consists of a connector body, and a rubber sealing ring, a clamping spring seat, a metal clamping spring and a release ring which are sequentially arranged in the connector body; the joint body and the release ring are thermoplastic engineering plastic parts formed by an injection molding process; an annular bulge is circumferentially arranged on the outer side of the transition part of the release ring, and the clamping spring seat is an annular seat with a positioning chamfer on the upper end surface; the utility model discloses a connector, including joint body, outer trachea, spring seat, rubber seal, the one end axial of joint body is equipped with and is used for external trachea male mounting hole, from outside to inside has set gradually the appearance chamber of assembly release ring, spring seat and rubber seal in the mounting hole, the appearance chamber upper and lower extreme of assembly release ring is equipped with the circular arc chamfer to joint body axle center slope. Compared with the pneumatic quick connector of the existing copper connector body, the pneumatic quick connector is changed from the traditional 6 parts to 5 parts, so that the assembly process and the assembly failure risk of the pneumatic quick connector are simplified; the connector body is manufactured by injection molding, has obvious processing advantages, can realize one-die multi-cavity forming to obtain a plurality of connector bodies by one-step forming, greatly improves the production and processing efficiency and the product quality qualification rate of the connector bodies, and can obviously reduce the manufacturing cost of the pneumatic quick connector.
Description
Technical Field
The invention relates to a connecting device capable of being quickly disassembled and assembled, in particular to a pneumatic quick connector.
Background
The pneumatic quick connector is a quick connector element for connecting the pneumatic tool and the air source, and is used for providing compressed air of the air source for the pneumatic tool. The pneumatic quick connector is convenient to assemble and disassemble and high in universality, and is widely applied to ventilation equipment such as air pipelines, air compressors, grinding machines, air drills, impact wrenches, air-operated screwdrivers and the like.
In the prior art, the body of pneumatic quick connector is mostly made of copper materials, and the connector body comprises five parts, namely a sealing ring, a clamping spring seat, a clamping spring, a positioning ring and a release ring. The copper joint body is manufactured by adopting a precise machine tool, and has the defects of complicated machining procedures, long manufacturing period, low efficiency, high loss and the like. In addition, copper is one of the important and scarce strategic substances in China, and 70% of copper concentrate in China is statistically dependent on foreign importation. Meanwhile, the copper joint body is poor in corrosion resistance and moisture resistance, and is easy to corrode and rust after being used in some special environments for a long time, so that the service life of the pneumatic joint is shortened. In addition, in order to save material cost, the wall thickness of the copper joint body is thinner, and deformation and even fracture are easy to occur in the assembling, disassembling and using processes. Currently, the pneumatic connector with the stainless steel flow connector body is used for replacing the pneumatic connector with the copper connector body in the market, but the stainless steel connector body is also required to be processed by a precision machine tool, and the processing period is longer due to the self material characteristics of the stainless steel, so that the manufacturing cost is increased intangibly. Therefore, searching for the substitute of the pneumatic connector copper body has practical significance in improving the production and processing efficiency and the service life of the pneumatic connector body.
Disclosure of Invention
The invention aims to provide a pneumatic quick connector with a plastic connector body, which is processed by adopting an injection molding process, and effectively overcomes the technical defects of complicated processing procedures, long manufacturing period, low efficiency, high loss and the like of the traditional copper connector body.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a pneumatic quick connector consists of a connector body, a rubber sealing ring, a clamping spring seat, a metal clamping spring and a release ring which are sequentially arranged in the connector body; the joint body and the release ring are thermoplastic engineering plastic parts formed by an injection molding process; an annular bulge is circumferentially arranged on the outer side of the transition part of the release ring, and the clamping spring seat is an annular seat with a positioning chamfer on the upper end surface; the utility model discloses a connector, including joint body, outer trachea, spring seat, rubber seal, the one end axial of joint body is equipped with and is used for external trachea male mounting hole, from outside to inside has set gradually the appearance chamber of assembly release ring, spring seat and rubber seal in the mounting hole, the appearance chamber upper and lower extreme of assembly release ring is equipped with the circular arc chamfer to joint body axle center slope.
Because the joint body is a thermoplastic engineering plastic part, the joint body has high degree of freedom in the design of the operable structure. The annular bulge is skillfully arranged on the outer circumference of the transition part of the release ring, the upper end and the lower end of the corresponding containing cavity for assembling the release ring in the mounting hole of the joint body are provided with arc chamfers inclined towards the axis of the joint body, the upper end surface of the clamp spring seat is provided with a positioning chamfer for positioning the upper end surface of the metal clamp spring, and the inner wall of the clamp spring seat is provided with an annular seat with a conical surface.
Preferably, a space-avoiding groove is arranged below the accommodating cavity for assembling the rubber sealing ring.
The inner diameters of the accommodating cavity of the assembly clamping spring seat and the accommodating cavity of the assembly rubber sealing ring are equal, and the inner diameters of the accommodating cavity of the assembly release ring, the accommodating cavity of the assembly rubber sealing ring and the empty avoiding groove are sequentially reduced.
An empty-avoiding groove is arranged below the containing cavity for assembling the rubber sealing ring, so that the problem of gas leakage in the using process of the joint caused by the fact that the gas pipe is not installed in place can be effectively prevented. The inner diameters of the containing cavity for assembling the release ring, the containing cavity for assembling the rubber sealing ring and the empty avoidance groove in the joint body are designed into structures which are sequentially reduced, so that the installation stability of structural components in the joint body can be further ensured, and the gas leakage in the use process of the joint can be prevented.
The other end of the joint body is provided with a vent hole communicated with the mounting hole, and the outer wall of the vent hole is provided with external threads for being connected with external parts.
Optionally, the outer wall of joint body mounting hole end is equipped with regular polygon fastening portion, adopts the spanner to drive the joint body rotation and reaches the fastening purpose when convenient pneumatic quick connector and external part assembly.
Preferably, the regular polygon fastening part is a regular quadrangle, a regular pentagon, a regular hexagon, or a regular octagon.
Optionally, a regular polygon fastening hole is formed in the inner wall of the mounting hole of the connector body. When the outer wall of the installation hole end of the connector body is a cylinder or other smooth surfaces, the regular polygon fastening holes are arranged on the inner wall of the installation hole of the connector body, and the connector body can be driven to rotate by an inner plate hand so as to achieve the purpose of fastening when the pneumatic quick connector is connected with external parts.
The outer fringe of release ring upper end is equipped with the spacing cap that is used for restricting the release ring and penetrates the joint body completely, and the lower terminal surface is equipped with the circular arc chamfer, a plurality of expansion grooves have been seted up to circular arc chamfer port symmetry. The opening depth of the telescopic groove can extend to/even pass through the annular bulge part of the transition part of the release ring according to the use requirement; the arc chamfer ports are symmetrically provided with a plurality of telescopic grooves, so that the deformation risk and the cracking risk of the joint body or the release ring in the assembly process of the release ring can be further reduced.
The joint body is made of reinforced modified engineering plastics; the resin matrix of the reinforced modified engineering plastic is one or more selected from nylon, polyethylene terephthalate, polybutylene terephthalate and polyphenylene sulfide.
Preferably, the reinforced modified engineering plastic is aliphatic nylon or polyphenylene sulfide with 40-60 wt% of glass fiber content.
Advantageous effects
(1) According to the pneumatic quick connector, the connector body is made of thermoplastic engineering plastic materials, through structural design optimization of components, a locating ring arranged between a release ring and a metal clamp spring in the pneumatic quick connector of the traditional copper connector body is omitted, the pneumatic quick connector is changed from the traditional 6 components into 5 components, the assembly process of the pneumatic quick connector is simplified, the assembly failure risk is reduced, the manufacturing cost of the pneumatic quick connector is reduced, the material formula can be optimally designed according to the use environment requirement of the pneumatic quick connector, the performance meeting the use environment requirement is endowed, and the application range of the pneumatic quick connector can be further widened.
(2) Compared with the pneumatic quick connector of the existing copper connector body, the connector body of the pneumatic quick connector is manufactured by injection molding of thermoplastic engineering plastics, has obvious processing advantages, can realize one-die multi-cavity forming to obtain a plurality of connector bodies at one time, and not only greatly improves the production and processing efficiency of the connector bodies, but also obviously improves the product quality qualification rate of the connector bodies; in addition, scraps and defective products generated in the production process can be recycled, and the production waste can not be caused by remelting and injection molding, so that the method is very environment-friendly.
Drawings
Fig. 1 is an exploded view of the pneumatic quick connector according to the present embodiment.
Fig. 2 is a cross-sectional view of the connector body of the pneumatic quick connector of the present embodiment.
Fig. 3 is a cross-sectional view of the pneumatic quick connector of the present embodiment.
Fig. 4 is a schematic view of a release ring of the pneumatic quick connector according to the present embodiment.
Fig. 5 is a schematic diagram of a clamp spring seat of the pneumatic quick connector of the present embodiment.
In the figure, the connector comprises a 1-connector body, a 11-mounting hole, a 12-through hole, a 13-release ring containing cavity, a 14-rubber sealing ring containing cavity, a 15-clearance groove, a 16-fastening part, a 2-rubber sealing ring, a 3-clamping spring seat, a 31-conical surface, a 32-positioning chamfer, a 4-metal clamping spring, a 5-release ring, a 51-limiting cap, a 52-transition part, a 53-annular bulge, a 54-circular arc chamfer and a 55-expansion groove.
Detailed Description
The invention will be further illustrated with reference to the accompanying drawings and examples which are given to illustrate the invention but not to limit the scope thereof.
As shown in fig. 1-5, a pneumatic quick connector consists of a connector body 1, and a rubber sealing ring 2, a clamping spring seat 3, a metal clamping spring 4 and a release ring 5 which are sequentially arranged in the connector body; the joint body is a thermoplastic engineering plastic piece formed by an injection molding process, and the thermoplastic engineering plastic is polyphenylene sulfide with the glass fiber content of 50%; an annular bulge 53 is circumferentially arranged on the outer side of the transition part 52 of the release ring, and the clamp spring seat 3 is an annular seat with a positioning chamfer 32 on the upper end surface; the inner wall of the annular seat 3 is provided with a conical surface 31 corresponding to the metal snap spring 4, one end of the joint body is axially provided with a mounting hole 11 for externally connecting an air pipe for insertion, the mounting hole is internally and sequentially provided with a cavity for assembling a release ring, a snap spring seat and a rubber sealing ring from outside to inside, and the upper end and the lower end of the cavity 13 of the assembling release ring are provided with arc chamfers inclined towards the axis of the joint body; a space avoiding groove 15 is arranged below the accommodating cavity 14 for assembling the rubber sealing ring; the other end of the joint body is provided with a vent hole 12 communicated with the mounting hole, and the outer wall of the vent hole is provided with external threads; the fastening portion 16 of the joint body of the present invention is provided on the outer wall surface of the mounting hole end, and the fastening portion has a regular hexagonal structure.
As shown in fig. 4, the outer edge of the upper end of the release ring 5 of the pneumatic quick connector is provided with a limit cap 51 for limiting the release ring to completely penetrate into the connector body, the lower end surface of the release ring is provided with an arc chamfer 54, and a plurality of expansion grooves 55 penetrating through the annular protruding parts are symmetrically formed in the arc chamfer ports.
When the air pipe to be connected is directly inserted into the release ring 5, after the insertion is completed, the metal clamp spring 4 can clamp the side wall of the air pipe so as to position the air pipe, the design of the clamp spring seat 3 can prevent the air pipe and the release ring from shaking in the use process, and if the air pipe is provided with an inclination or the exposed air pipe needs to be bent, the design of the empty avoiding groove 15 at the lower end of the accommodating cavity of the rubber sealing ring can ensure that the bottom of the inserted air pipe is still in sealing contact with the inner wall of the joint body, so that the air leakage problem can not occur; when the air pipe is required to be disassembled, the release ring 5 is only required to be pressed downwards, at the moment, the arc chamfer 54 at the lower end part of the release ring props against the metal clamp spring 4, and the metal clamp spring is pressed downwards, so that the metal clamp spring props against the conical surface 31 of the clamp spring seat and is not contacted with the outer wall of the air pipe, and the air pipe can be pulled out; the annular bulge is circumferentially arranged on the outer side of the transition part 52 of the release ring, so that a good positioning effect can be achieved, and the tightness of the release ring is ensured when the air pipe is pulled out, so that looseness or the joint body is not brought out along with the air pipe.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and are not intended to limit the scope of the present invention. Variations that would be obvious to a person skilled in the art within the scope of the present disclosure are intended to be included within the scope of the present invention.
Claims (10)
1. The pneumatic quick connector is characterized by comprising a connector body, and a rubber sealing ring, a clamping spring seat, a metal clamping spring and a release ring which are sequentially arranged in the connector body; the joint body and the release ring are thermoplastic engineering plastic parts formed by an injection molding process; an annular bulge is circumferentially arranged on the outer side of the transition part of the release ring, and the clamping spring seat is an annular seat with a positioning chamfer on the upper end surface; the utility model discloses a connector, including joint body, outer trachea, spring seat, rubber seal, the one end axial of joint body is equipped with and is used for external trachea male mounting hole, from outside to inside has set gradually the appearance chamber of assembly release ring, spring seat and rubber seal in the mounting hole, the appearance chamber upper and lower extreme of assembly release ring is equipped with the circular arc chamfer to joint body axle center slope.
2. A pneumatic quick connector according to claim 1, wherein a clearance groove is provided below the cavity for the rubber seal.
3. The pneumatic quick connector according to claim 1, wherein the inner diameters of the accommodating cavity of the assembly clamping spring seat and the accommodating cavity of the assembly rubber sealing ring are equal, and the inner diameters of the accommodating cavity of the assembly release ring, the accommodating cavity of the assembly rubber sealing ring and the empty avoiding groove are sequentially reduced.
4. A pneumatic quick connector as claimed in claim 1, wherein the other end of the connector body is provided with a vent hole communicating with the mounting hole, and the outer wall of the vent hole is provided with external threads.
5. A pneumatic quick connector as claimed in claim 1, wherein the outer wall of the connector body mounting bore end is provided with a regular polygonal fastening portion.
6. A pneumatic quick connector according to claim 4, wherein the regular polygon-shaped fastening portion is a regular quadrilateral, a regular pentagon, a regular hexagon or a regular octagon.
7. A pneumatic quick connector as claimed in claim 1, wherein the inner wall of the mounting hole of the connector body is provided with a regular polygonal fastening hole.
8. The pneumatic quick connector according to claim 1, wherein a limiting cap for limiting the release ring to completely penetrate into the connector body is arranged on the outer edge of the upper end of the release ring, an arc chamfer is arranged on the lower end face of the release ring, and a plurality of telescopic grooves are symmetrically formed in the arc chamfer.
9. The pneumatic quick connector according to any one of claims 1 to 7, wherein the connector body is a reinforced modified engineering plastic; the resin matrix of the reinforced modified engineering plastic is one or more selected from nylon, polyethylene terephthalate, polybutylene terephthalate and polyphenylene sulfide.
10. The pneumatic quick connector according to claim 8, wherein the reinforced modified engineering plastic is aliphatic nylon or polyphenylene sulfide with a glass fiber content of 40-60 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126947.1A CN116624684A (en) | 2022-02-11 | 2022-02-11 | Pneumatic quick connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210126947.1A CN116624684A (en) | 2022-02-11 | 2022-02-11 | Pneumatic quick connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116624684A true CN116624684A (en) | 2023-08-22 |
Family
ID=87596005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210126947.1A Pending CN116624684A (en) | 2022-02-11 | 2022-02-11 | Pneumatic quick connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116624684A (en) |
-
2022
- 2022-02-11 CN CN202210126947.1A patent/CN116624684A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6173969B1 (en) | Sealing ring | |
| CN210372066U (en) | Electronic expansion valve | |
| CN216590386U (en) | Sealing joint structure free of steel pipe welding | |
| CN116624684A (en) | Pneumatic quick connector | |
| CN213271447U (en) | Ferrule type pipe joint combined structure | |
| CN217108684U (en) | Pneumatic quick connector | |
| CN114294436B (en) | Plug valve formed by forging | |
| KR100948403B1 (en) | Pipe fitting and fitting ring process of manufacture | |
| CN212616855U (en) | Pipeline connecting structure | |
| CN212718487U (en) | With stop valve complex joint and idle call test system | |
| CN220729303U (en) | Integral sensor mount pad | |
| CN214820348U (en) | Injection molding insert knurling bush | |
| CN213598615U (en) | Ball valve with retaining ring | |
| CN201416717Y (en) | Fast water pipe joint | |
| CN215172165U (en) | Piston and piston rod matching structure | |
| CN221221871U (en) | High-pressure high-gas-density straight cannula joint | |
| CN213058286U (en) | Injection molding actuator | |
| CN213271448U (en) | Extrusion type pipe joint combined structure | |
| CN219529838U (en) | Control valve | |
| CN216950518U (en) | Combined sealing structure of oil drain plug and sealing washer of engine oil pan | |
| CN215921378U (en) | Quick press fitting clamp for press head | |
| CN216279865U (en) | Screw thread through joint | |
| CN217815322U (en) | Four-way valve seal head with high sealing connection performance | |
| CN220769692U (en) | Plunger structure, pump core and plunger pump | |
| CN210050209U (en) | Aluminium cast impeller shaft bushing |
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 |