CN115143332B - Universal quick connector capable of being quickly unlocked for fluid - Google Patents
Universal quick connector capable of being quickly unlocked for fluid Download PDFInfo
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- CN115143332B CN115143332B CN202210901405.7A CN202210901405A CN115143332B CN 115143332 B CN115143332 B CN 115143332B CN 202210901405 A CN202210901405 A CN 202210901405A CN 115143332 B CN115143332 B CN 115143332B
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- Prior art keywords
- quick
- connector
- female connector
- female
- male connector
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- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 17
- 230000035515 penetration Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 18
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000005489 elastic deformation Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- 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
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
- F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- 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
- F16L37/1225—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 a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
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 universal quick connector capable of being quickly unlocked for fluid, which comprises a quick female connector assembly and a quick male connector assembly, wherein the quick male connector assembly comprises a penetrating end of the quick male connector. The quick-connect female connector assembly comprises a quick-connect female connector and an annular clip; the annular clip is arranged on the side surface of the quick male connector and is partially clamped with the penetrating end of the quick female connector; the outer surface of the penetrating end of the quick male connector is attached to the inner surface of the quick male connector. The quick-connection type female connector can realize quick connection of male and female connectors by adopting the quick-connection structure, the female connector integrates the female connector body and the annular clip, the problem that the assembly of several parts for split charging is time-consuming and labor-consuming in the prior art is solved, and the loading efficiency of a host factory is improved.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to a universal quick connector for fluid, which can be quickly unlocked.
Background
The dangerous goods transportation truck according to GB72587.2.12 with the total mass of 12000kg or more should also be equipped with an electronic stability control and braking system. The dangerous goods transportation truck with the total mass of more than or equal to 12000kg is provided with an electric control braking system from 13 months after 1 month of 2018 and 1 day. The EBS is developed based on an anti-lock braking system ABS and an anti-skid system ASR in recent years, is mainly used for improving the braking performance of a truck, and can rapidly release the brake when wheels are locked, and then brake again so as not to lose the friction force for grabbing the wheels, and the braking performance of the truck is a concern of most owners.
Although various connection modes, especially quick-plug modes, exist in the market, the insertion type quick-plug connector modeling holes which do not meet the industry standard QC/T1120 are adopted, so that clients cannot directly connect. The quick-plugging is realized by adopting the transition joint mode, but the connecting mode has high cost, is complex in connection and increases a plurality of leakage points. The customer needs to realize quick connection, although there is a corresponding solution, a transition joint mode is adopted, that is, one end of the transition joint is connected with a non-standard valve port, and the other end of the transition joint is connected with a standard port, so that a transition joint is added, the occupied space is larger, more heaviness is more obvious, the risk of two leakage points is increased, and the cost of connection is increased intangibly.
The connecting joint meeting the industry standard QC/T1120 cannot be assembled and connected, and cannot be adopted, so that the novel quick-plugging structure which has the quick-plugging function, is beneficial to nylon pipe connection, small in occupied space and reliable in operation, installation and sealing is needed to be redesigned, and can be directly connected with a valve with a non-standard port, a common threaded hole and a modeling hole meeting the industry standard QC/T1120 after being adopted, so that the novel quick-plugging structure is higher in practicability, simpler in structure, smaller in occupied space, lower in connection cost and more attractive in assembly arrangement.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a universal quick connector for fluid, which can be quickly unlocked, so as to solve the novel structural problems of the quick connector structure, which is provided in the background art, has the quick connector function, is beneficial to nylon pipe connection, has small occupied space, is beneficial to operation, installation and sealing reliability, and meets the requirements of stronger practicability, simpler structure, smaller occupied space, lower connection cost and more attractive assembly arrangement.
Technical proposal
The invention provides a universal quick connector for fluid, which can be quickly unlocked, and comprises a quick female connector assembly and a quick male connector assembly, wherein the quick male connector assembly comprises a penetrating end of the quick male connector, and the quick female connector assembly comprises a quick female connector and an annular clip; the annular clip is arranged on the side surface of the quick male connector and is partially clamped with the penetrating end of the quick female connector; the outer surface of the penetrating end of the quick male connector is attached to the inner surface of the quick male connector.
Optionally, the quick-connect female connector comprises a connector hexagonal shape, a screw shaft and external threads; the screw shaft is installed on the outer side face of the hexagonal connector, and external threads are formed on the outer surface of the screw shaft.
Optionally, the annular clip comprises a clamping ring, an inner connecting ring and a structural member with an unlocking groove;
an inner ring is arranged on the inner surface of the clamping ring and is clamped with the tail part of the screw shaft of the quick-plug female connector;
the structural members are symmetrically arranged on the clamping ring;
the whole structural member is respectively prolonged longitudinally upwards and longitudinally downwards;
an unlocking groove is formed in the longitudinal upward extension part of the structural part;
the longitudinal downward extension of the structural member forms a boss and is provided with a disassembly hole.
Alternatively, the unlocking slots may be provided longitudinally in pairs on the longitudinal upward extension of the structural member.
Alternatively, the unlocking slot may be entirely penetrating, dividing the longitudinally upward extension of the structural member into three parts, only holding the upper parts connected.
Optionally, the disassembly holes on the boss of the structural member are semicircular disassembly holes or blind hole type disassembly holes.
Optionally, the quick-connect female connector comprises a connector hexagonal shape, a screw shaft and external threads; the screw shaft is installed on the outer side face of the hexagonal connector, and external threads are formed on the outer surface of the screw shaft.
Optionally, the structural member forms a snap-in part at a portion extending upward and contacting the female quick connector, the snap-in part being embedded in the external thread of the female quick connector.
Optionally, a tangential plane is formed at a position corresponding to the external thread of the quick-connect female connector and the clamping component of the structural member, so that the clamping component is embedded into the external thread of the quick-connect female connector.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the quick-connection type female connector can realize quick connection of male and female connectors by adopting the quick-connection structure, the female connector integrates the female connector body and the annular clip, the problem that the assembly of several parts for split charging is time-consuming and labor-consuming in the prior art is solved, and the loading efficiency of a host factory is improved.
2. The annular clip and the female connector body can be connected by adopting one of the inverted buckles for interference fit, but in order to improve the reliability of connection and reduce the rejection rate, the annular clip and the female connector body can be prepared by adopting an embedded injection molding mode, because the injection molding piece is made of thermoplastic materials, and the annular clip and the female connector body are in compact connection with the groove of the female connector under certain temperature and upper stress film.
3. In order to facilitate unlocking, the deformation length of the annular clamp is increased, and in a limited space, under the condition of not affecting the strength, a part of the female connector body is removed to accommodate the annular clamp, and two openings are formed in the annular clamp for opening and closing more easily.
4. The unlocking hole of the annular clamp adopts a blind hole type or a semicircular type, and the purpose of the semicircular type is to solve the problem of a notch caused by insufficient strength of a stressed part during small-specification unlocking.
5. The invention adopts the unique structure of the annular clip design, solves the reliability of unlocking and connection, and improves and researches the manufacturing process in order to improve the yield.
6. The quick-connection type female connector can realize quick connection of male and female connectors by adopting the quick-connection structure, and the female connector integrates the female connector body and the annular clip, so that the problem that the assembly of several parts together for split charging is time-consuming and labor-consuming in the prior art is solved, and the loading efficiency of a host factory is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a universal quick connector for fluids, which can be quickly unlocked according to the present invention;
FIG. 2 is an exploded view of the general structure of a quick connector for fluids, which can be quickly unlocked according to the present invention;
FIG. 3 is a schematic cross-sectional view of a general quick connector for fluids, which can be quickly unlocked according to the present invention;
FIG. 4 is a schematic view of a semicircular annular clip structure of a fluid universal quick connector capable of being quickly unlocked;
fig. 5 is a schematic structural view of a blind hole type annular clip for a fluid universal quick connector capable of being quickly unlocked.
Fig. 6 is a schematic structural view of a universal quick connector for fluid quick connector capable of being quickly unlocked according to the present invention.
The reference numerals in the figures illustrate: 1. a quick-connect male connector; 11. yang Jietou first seal ring; 12. yang Jietou second seal ring 12; 2. a quick-connect female connector; 3. a female joint seal ring; 4. a ring-shaped clip; 5. a penetration end; 21. a joint hexagonal; 22. a screw shaft; 23. externally connecting threads; 24. cutting into sections; 41. a clasp; 42. an inner ring; 43. structural members; 44. unlocking grooves; 45. a semicircular disassembly hole; 46. blind hole type dismounting holes.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, the universal quick connector for fluid capable of being quickly unlocked is applied to connection in the process of conveying gas, liquid and other fluids.
As shown in fig. 1 and 2, the universal quick connector for fluid capable of being quickly unlocked provided by the invention comprises a quick female connector assembly and a quick male connector assembly.
The quick-connect female connector assembly comprises a quick-connect male connector 1, a quick-connect female connector 2, a female connector sealing ring 3 and an annular clip 4. The upper part of fig. 2 is a quick-connect connector 1.
The quick-connect female connector 2 and the annular clip 4 are combined to form a quick-connect female connector assembly. The middle part of fig. 2 is a quick-connect female connector assembly.
Referring to fig. 3, the end of the male plug 1 facing the female plug 2 is a penetration end 5, the outer surface of the penetration end 5 of the male plug 1 is provided with a Yang Jietou first sealing ring 11 and a Yang Jietou second sealing ring 12, and then the male plug 1 is inserted into the inner cavity of the female plug 2, and the outer surface shape of the penetration end 5 of the male plug 1 is basically matched with the inner surface shape of the female plug 2. The first seal ring 11 and the second seal ring Yang Jietou play a role in sealing when gas or liquid flows through the hollow portions of the quick-connect male connector 1 and the quick-connect female connector 2. The annular clamp 4 is partially clamped with the penetrating end 5 of the quick male connector 1, so that the quick male connector 1 and the quick female connector 2 are connected in a plugging mode.
The insertion end 5 of the quick male connector 1 is inserted into the inner cavity of the quick female connector 2, and the outer surface of the quick male connector insertion end 5 is mutually attached to the inner surface of the quick female connector 2.
The quick connector 2 is described in detail below.
As shown in fig. 2 and 5, the quick-connect female connector 2 is a cylinder, the quick-connect female connector 2 includes a hexagonal connector 21, a threaded shaft 22 and external threads 23, the threaded shaft 22 is mounted on a side surface of the hexagonal connector 21, and the external threads 23 are provided on an outer surface of the threaded shaft 22.
As shown in fig. 5, the annular clip 4 is integrally formed and includes a snap ring 41, an inner ring 42, and a structural member 43 with an unlocking groove 44.
The inner surface of the clamping ring 41 is provided with an inner connecting ring 42, and the inner connecting ring 42 is clamped with the tail part of the screw shaft 22 of the quick-connect female connector 2.
The structural members 43 are symmetrically arranged on the clamping ring 41.
Preferably, as shown in fig. 3, a female connector sealing ring 3 may be mounted on the external thread 23, so as to seal gas or liquid when the female connector 2 is connected with the counter-piece.
In addition, in order to ensure easier unlocking, the integral unlocking part of the structural member 43 with the unlocking groove for unlocking the annular ring-shaped clamp 4 is longitudinally prolonged, so that the elasticity of full deformation is ensured, the unlocking is convenient, and a part of the space of the female connector is occupied.
Specifically, the structural member 43 is integrally elongated longitudinally upward and longitudinally downward, respectively; an unlocking groove 44 is formed in the longitudinal upward extension part of the structural member 43; the longitudinal downward extension of the structural member 43 forms a boss and is provided with a removal hole. The unlocking grooves 44 may be provided in pairs longitudinally on the longitudinal upward extension of the structural member 43, as shown in fig. 5. The unlocking slot 44 may be completely penetrating, dividing the longitudinal upward extension of the structural member 43 into three parts, only holding the upper parts connected.
A semicircular dismounting hole 45 or a blind-hole dismounting hole 46 is formed along the circumferential direction of the clamping ring at the longitudinal downward extension part of the structural member 43.
As shown in fig. 5, the ring clip 4 is arranged on the quick-connect female connector; the longitudinal downward extension of the structural member 43 engages the male quick connector.
The ring-shaped clip 4 is connected to the female quick connector 2 by means of a back-off, said structural member 43 forming a snap-on part at the part in contact with the female quick connector 2, said snap-on part being embedded in the outer surface of the threaded shaft 22 of the female quick connector 2. As shown in fig. 4 and 5, the longitudinal upward extension of the structural part 43 of the ring-shaped clip 4 forms a snap-in part which engages in the cut surface 24 of the quick connector 2.
The longitudinal downward extension of the structural member 43 forms a boss, the boss is embedded into the groove of the butt joint base body of the quick-connect male connector, and the disassembly hole is formed in the bottom of the boss.
As shown in fig. 4 and 5, the structural member 43 of the ring-shaped clip 4 has one end connected to the male quick connector 1 and the other end connected to the female quick connector 2.
Specifically, on the one hand, two bosses of the structural member 43 protruding downward thereof form a connection with the male quick connector 1. Specifically, the boss is embedded into a groove of a butt joint substrate of the quick-connect male connector to form stable connection.
In order to facilitate quick disassembly and complete separation of the female connector and the male connector, disassembly holes 45 are respectively formed in two sides of the boss of the annular clamp 4 and used for accommodating an unlocking tool for unlocking, and symmetrical grooves are formed in the front and rear of the boss so as to facilitate elastic deformation.
In addition, the length of the boss of the annular clip 4 can be longitudinally prolonged to increase the elastic deformation of the annular clip, and the dismounting hole of the annular clip can also be semicircular as shown in fig. 1. The semicircular type unlocking device aims at solving the problem of the notch caused by insufficient strength when unlocking due to smaller specifications of parts. Alternatively, blind holes as shown in fig. 2 may be used.
Specifically, in the case that the overall diameter of the annular clip 4 is smaller, as shown in fig. 4, in order to ensure the unlocking easiness and reduce the insertion force of the male connector, symmetrical grooves are formed in front and back of the boss to form through slots 45, so that semicircular jack holes are formed, and the problem of gaps caused by insufficient strength in small-size unlocking is solved, so that elastic deformation can be easily performed; in addition, the boss length of the ring-shaped clip 4 is also extended to increase its elastic deformation. The disassembly holes of the annular clips are blind holes (as shown in fig. 4) and can also be semicircular holes (as shown in fig. 5).
On the other hand, the structural part 43 extends upward to form an upward extension until it is embedded in the external thread 23 of the circumference of the quick-connect female connector 2 and abuts against the tangential surface 24 of the external thread 23.
As shown in fig. 2, one end of the structural member 43 of the annular ring-shaped clip 4 is connected to the male plug 1, and the other end is connected to the female plug 2.
Specifically, on the one hand, two bosses of the structural member 43 protruding downward thereof form a connection with the male quick connector 1. Specifically, the two bosses are embedded into the grooves of the penetrating ends of the quick male connector to form stable connection.
In addition, in order to ensure easier unlocking, the integral unlocking part of the structural member 43 with the unlocking groove for unlocking the annular clamp 4 is longitudinally prolonged, so that the elasticity of sufficient deformation is ensured, the unlocking is convenient, and a part of the space of the female joint is occupied.
Therefore, as shown in fig. 4, the symmetrical two sides of the external thread 23 of the quick connector female connector 2 are cut to form a tangential surface 24, so that the space occupied by the original screw shaft 22 and the external thread 23 is reduced, and the space is used for accommodating the annular clip 4, thereby increasing the elastic deformation capability of the annular clip 4 when the annular clip 4 is unlocked by an unlocking tool, and increasing the elasticity of the annular clip 4. Accordingly, the upwardly extending portion of the structural member 43 of the ring-shaped clip 4 is fitted into the cut surface 24, so that the ring-shaped clip 4 is tightly connected to the female snap connector 2 by the space cut from both sides of the female snap connector 2 as described above.
It should be noted that in order to ensure the reliability of connection, the female connector is not easy to be disconnected after connection, and the proper numerical value is obtained through reasonable measurement and calculation according to the outer diameter size of the step part of the female connector occupied by the annular clip, the thread bottom diameter of the female connector and the elastic deformation coefficient of the annular clip, so that the female connector is ensured to be normally installed, and the annular clip is not easy to be easily unlocked after installation.
In addition, optionally, a female connector sealing ring 3 is further arranged on the periphery of the female connector 2, so as to seal gas or liquid when the female connector is connected with the opponent of the universal female connector.
The quick connector 1 is described in detail below.
The outer surface of the penetrating end 5 of the quick-connect male connector 1 is provided with a Yang Jietou first sealing ring 11 and a Yang Jietou second sealing ring 12. Yang Jietou the first sealing ring 11 and Yang Jietou the second sealing ring 12 play a sealing role when gas or liquid flows through the hollow parts of the quick-connect male connector 1 and the quick-connect female connector 2. Therefore, the quick connector 1, the first sealing ring 11 and the second sealing ring 12 are tightly combined together to form the quick connector assembly.
After the pipe connection end of the quick male connector 1 is assembled with the nylon pipe, the penetrating end 5 of the quick male connector is directly inserted into the quick female connector 2, and the quick male connector 1 is matched with the inner hole of the quick female connector 2. The insertion end 5 of the male quick connector continues to move forward and simultaneously contacts with the inclined surface of the annular clip 4 at the lower part of the female quick connector 2, and the insertion end 5 of the male quick connector exerts an outward expanding force on the inclined surface of the annular clip 4. At this time, the connection ring clip 4 is spread by the wedge-shaped end of the quick connector 1 and the inclined surface of the ring clip under the action of the assembling force. The insertion end 5 of the male quick connector continues to be assembled forward until the boss of the annular clip 4 is just caught in the groove of the female quick connector 2, so that the connecting annular clip 4 springs back to form a stable connection, as shown in fig. 6. Thus, the male quick connector 1 and the female quick connector 2 are assembled in place.
In order to ensure easier unlocking, the length of the unlocking part of the annular clip 4 is longitudinally prolonged, so that the sufficient deformation elasticity is ensured, the unlocking is convenient, a part of the space of the female joint is occupied, and as shown in fig. 1, two symmetrical steps are arranged at the female joint. Although unlocking is easy, in order to ensure the reliability of connection, the ring-shaped clamp is not easy to unlock after connection, and after the outside diameter of the step part of the female joint occupied by the ring-shaped clamp is logically calculated, the outside diameter is in the thread bottom diameter of the female joint, so that the normal installation of the female joint is ensured, and the ring-shaped clamp is not easy to unlock after installation. The disassembly hole of the annular clamp adopts a blind hole type, and can also adopt a semicircular type, and the purpose of the semicircular type is to solve the problem of the notch caused by insufficient strength when the small-size lock is unlocked.
In order to ensure easier unlocking, the length of the unlocking part of the annular clip 4 is prolonged as shown in fig. 4 and 5, the whole unlocking part of the structural member 43, including the unlocking groove 44, the boss and the disassembling hole, is prolonged longitudinally, thus ensuring the elasticity of sufficient deformation, facilitating unlocking, occupying a part of the space of the female joint, as shown in fig. 4, and having two symmetrical steps at the female joint.
The above solution solves the problem of easy unlocking, but also needs to consider the problem of ensuring connection reliability, and needs to be difficult to disconnect after connection, and needs to be a solution. Therefore, after the outer diameter of the step part of the female connector occupied by the annular clip 4 is logically calculated, the size is the thread bottom diameter of the female connector, so that the normal installation of the female connector is ensured, the difficult easy unlocking of the annular clip after the installation is also ensured, the blind hole type unlocking hole of the annular clip is adopted, the semicircular type unlocking hole can also be adopted, and the semicircular type unlocking hole aims at solving the problem of the notch caused by insufficient strength in small-specification unlocking.
Therefore, as shown in fig. 6, the symmetrical two sides of the external thread 23 of the quick-connect female connector 2 are cut to form the inclined tangential plane 24, so that the space occupied by the original screw shaft 22 and the external thread 23 is reduced to accommodate the annular ring-shaped clip 4, thereby increasing the elastic deformability of the annular ring-shaped clip 4 when unlocked by the unlocking tool, and increasing the elasticity of the annular ring-shaped clip 4. Accordingly, the upward extending portion of the structural member 43 of the annular ring-shaped clip 4 is fitted into the inclined cut surface 24, so that the annular ring-shaped clip 4 is tightly connected to the quick connector 2 by the space cut from both sides of the space female connector of the quick connector 2 described above.
It should be noted that in order to ensure the reliability of connection, the female connector is not easy to be disconnected after connection, and the proper numerical value is obtained through reasonable measurement and calculation according to the outer diameter size of the step part of the female connector occupied by the annular clip, the thread bottom diameter of the female connector and the elastic deformation coefficient of the annular clip, so that the female connector is ensured to be normally installed, and the annular clip is not easy to be easily unlocked after installation.
The universal quick connector for fluid capable of being quickly unlocked is applied to connection in the process of conveying the fluid such as gas, liquid and the like.
The connection of the annular clip 4 and the quick-connect female connector 2 can be an interference fit in a lower-cost back-off. Namely, the fastening connection is achieved by the interference value after the engagement of the female member (the annular clip 4) and the female member (the screw shaft 22 of the quick-connect female connector 2). After assembly, the diameter of the screw shaft 22 is compressed, the diameter of the annular clip 4 is enlarged, and due to the elastic deformation of the material, a pressure is generated on the mating surfaces of the female member and the female member, and a friction force is generated by means of the pressure to transmit torque and axial force. However, this approach has a certain rejection rate and requires connection strength detection.
But in order to improve the reliability of connection and reduce the rejection rate, the preparation is preferably carried out by adopting a mosaic injection molding mode. Because the material of the injection molding part is thermoplastic material, the injection molding part and the female connector are in compact connection at a certain temperature and under the upper film, and the detection of 100% of connection strength can be solved by the mode, so that the rejection rate is greatly reduced. Therefore, in the present invention, grooves and projections are provided on the surfaces of the quick-connect female connector 2 and the ring-shaped clip 4, respectively, so as to improve the connection firmness of the quick-connect female connector 2 and the ring-shaped clip 4, knurling or convex-concave steps.
In addition, the boss of the ring clip 4 is thickened, and as shown in fig. 4 and 5, the structural member 43 with the penetration groove 45 and penetration hole 46 is used as a main connecting member with the quick connector 2, and the thickness is obviously increased compared with the inner ring 42, so that the connecting strength of the two connecting parts is improved. The specific thickness value is chosen according to the properties of the ring-shaped clip 4 and the material and the diameter of the quick-connect coupling 2.
In an initial state, the quick-plugging female connector 2, the female connector sealing ring 3 and the annular clip 4 are combined to form a quick-plugging female connector assembly, the annular clip 4 on the quick-plugging female connector 2 is gradually opened by the penetrating end of the quick-plugging male connector 1, the annular clip 4 is gradually opened by the wedge-shaped male connector end during insertion, the annular clip 4 is in a rebound original state after passing through the groove of the quick-plugging male connector 1, and the annular clip 4 is just connected with the groove of the male connector, so that the assembly of the female connector and the male connector is completed.
That is, when in use, the male quick connector 1 is directly inserted into the inner cavity of the female quick connector 2, and the groove of the male quick connector 1 is clamped by the annular clamp 4 on the female quick connector 2, so that the assembly of the female connector and the male connector is completed.
The use scene is that after the pipe connecting end of the quick male connector 1 is assembled with a nylon pipe, the penetrating end of the quick male connector 1 is directly inserted into the quick female connector 2, a sealing ring arranged on the quick male connector 1 is matched with an inner hole of the quick female connector 2, and the inner sealing ring is compressed to form a seal; with the continuous insertion of the quick connector 1, the downward extension part of the structural member 43 of the annular clip 4 is inserted until the downward extension part is pushed outwards, and meanwhile, the connection annular clip 4 is spread by the inclined surface of the annular clip 4 and the wedge-shaped end of the quick connector 1 under the action of the assembly force, the quick connector 1 is assembled forwards continuously, after the quick connector is assembled in place, the connection annular clip 4 rebounds, and the inverted teeth of the connection annular clip are just clamped in the grooves of the quick connector 2 to form connection.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The universal quick connector for fluid capable of being quickly unlocked comprises a quick female connector assembly and a quick male connector assembly, wherein the quick male connector assembly comprises a penetration end (5) of the quick male connector (1), and the quick female connector assembly comprises a quick female connector (2) and an annular clip (4); the annular clip (4) is arranged on the side surface of the quick male connector (2) and is partially clamped with the penetrating end (5) of the quick female connector (1); the outer surface of the penetrating end (5) of the quick male connector (1) is attached to the inner surface of the quick male connector (2); the quick-connect female connector (2) comprises a connector hexagonal (21), a screw shaft (22) and external threads (23); a screw shaft (22) is arranged on the outer side surface of the joint hexagonal (21), and an external thread (23) is arranged on the outer surface of the screw shaft (22); the annular clip (4) comprises a clamping ring (41), an inner connecting ring (42) and a structural member (43) with an unlocking groove (44); the method is characterized in that:
an inner ring (42) is arranged on the inner surface of the clamping ring (41), and the inner ring (42) is clamped with the tail part of the screw shaft (22) of the quick-plug female connector (2);
the structural part (43) is symmetrically arranged on the clamping ring (41); the structural member (43) is integrally and longitudinally extended upwards and downwards respectively; an unlocking groove (44) is formed in the longitudinal upward extension part of the structural part (43); a boss is formed on the longitudinal downward extension part of the structural part (43) and provided with a disassembly hole, the boss is embedded into a groove of a butt joint base body of the quick male connector, and the disassembly hole is formed at the bottom of the boss;
the unlocking grooves (44) are longitudinally arranged on the longitudinal upward extension part of the structural part (43) in pairs;
the unlocking groove (44) is completely penetrating, divides the longitudinal upward extension of the structural member (43) into three parts, and only keeps the upper parts connected.
2. A universal quick connector for fluids capable of being quickly unlocked as claimed in claim 1, wherein:
the disassembly holes on the boss of the structural part (43) are semicircular disassembly holes (45) or blind hole type disassembly holes (46).
3. A universal quick connector for fluids capable of being quickly unlocked according to claim 2, wherein:
the structural part (43) forms a clamping part at the part which extends upwards and is contacted with the quick-connect female connector (2), and the clamping part is embedded into the external thread (23) of the quick-connect female connector (2).
4. A universal quick connector for fluids capable of being quickly unlocked according to claim 3, wherein:
and a tangential surface (24) is formed at the corresponding position of the external thread (23) of the quick-connect female connector (2) and the clamping component of the structural component (43), so that the clamping component is embedded into the external thread (23) of the quick-connect female connector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901405.7A CN115143332B (en) | 2022-07-28 | 2022-07-28 | Universal quick connector capable of being quickly unlocked for fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901405.7A CN115143332B (en) | 2022-07-28 | 2022-07-28 | Universal quick connector capable of being quickly unlocked for fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115143332A CN115143332A (en) | 2022-10-04 |
| CN115143332B true CN115143332B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210901405.7A Active CN115143332B (en) | 2022-07-28 | 2022-07-28 | Universal quick connector capable of being quickly unlocked for fluid |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0728977A1 (en) * | 1995-02-27 | 1996-08-28 | Interflex, S.A. | Connection device for corrugated pipes |
| EP1443254A1 (en) * | 2003-01-29 | 2004-08-04 | BSH Bosch und Siemens Hausgeräte GmbH | Plug-in connector for water pipes |
| CN203421368U (en) * | 2013-06-26 | 2014-02-05 | 天台县富华塑胶有限公司 | Special connector for expansion pipe |
| CN210860225U (en) * | 2019-06-20 | 2020-06-26 | 临海市永恒汽配科技有限公司 | Non-detachable quick coupling |
| CN210890535U (en) * | 2019-10-29 | 2020-06-30 | 河北亚大汽车塑料制品有限公司 | Quick connector for air brake pipeline |
| CN212839978U (en) * | 2020-08-05 | 2021-03-30 | 浙江万全机械制造有限公司 | Quick connector for automobile chassis pipeline |
| DE102019128040A1 (en) * | 2019-10-17 | 2021-04-22 | A. u. K. Müller GmbH & Co KG. | Connectors |
-
2022
- 2022-07-28 CN CN202210901405.7A patent/CN115143332B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0728977A1 (en) * | 1995-02-27 | 1996-08-28 | Interflex, S.A. | Connection device for corrugated pipes |
| EP1443254A1 (en) * | 2003-01-29 | 2004-08-04 | BSH Bosch und Siemens Hausgeräte GmbH | Plug-in connector for water pipes |
| CN203421368U (en) * | 2013-06-26 | 2014-02-05 | 天台县富华塑胶有限公司 | Special connector for expansion pipe |
| CN210860225U (en) * | 2019-06-20 | 2020-06-26 | 临海市永恒汽配科技有限公司 | Non-detachable quick coupling |
| DE102019128040A1 (en) * | 2019-10-17 | 2021-04-22 | A. u. K. Müller GmbH & Co KG. | Connectors |
| CN210890535U (en) * | 2019-10-29 | 2020-06-30 | 河北亚大汽车塑料制品有限公司 | Quick connector for air brake pipeline |
| CN212839978U (en) * | 2020-08-05 | 2021-03-30 | 浙江万全机械制造有限公司 | Quick connector for automobile chassis pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115143332A (en) | 2022-10-04 |
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