CN112082026A

CN112082026A - Quick connector

Info

Publication number: CN112082026A
Application number: CN202011003765.2A
Authority: CN
Inventors: 刘光跃; 王天龙; 邵军钰; 陈忻
Original assignee: NINGBO JLT ELECTRIC CO Ltd
Current assignee: NINGBO JLT ELECTRIC CO Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-12-15

Abstract

The invention discloses a quick connector, comprising: the joint body is provided with a sliding surface, and a first opening is formed at the sliding surface of the joint body; the buckle is arranged on the sliding surface in a sliding manner and is provided with a second opening which is communicated with the first opening to form a buckle interface; the buckle adjusts the position of the second opening relative to the first opening through sliding relative to the sliding surface in a first direction so as to adjust the caliber of the card interface in the first direction; the buckle is operable to be in a locking position and an unlocking position, the caliber of the card interface in the first direction is smaller when the buckle is in the locking position, and the caliber of the card interface in the first direction is larger when the buckle is in the unlocking position. The quick joint can reliably realize locking and loosening, and has wide application range and high stability in a locking state.

Description

Quick connector

Technical Field

The invention relates to the technical field of fluid control, in particular to a quick connector.

Background

The water inlet and outlet of the existing pump are mostly in a thread type, and a pipe joint with threads is used in actual assembly and is tightly screwed with certain sealing filling materials after being wound. This approach is relatively cumbersome, inefficient in assembly, and unreliable. The sealing filler is not easy to control, the screwing degree of the pipe joint is also limited by the direction of the water pipe joint, so that the poor sealing performance of the connection is easy to occur, the pump with the quick joint also appears in the market at present, but the process of simply using the quick joint of the water pipe is adopted, the quick joint part is directly welded on the pump by using the ultrasonic process, and the pump head material adopts the general nylon reinforced raw material, so that the process performance of the ultrasonic welding of the material is poor, and the poor welding is easy to occur.

Disclosure of Invention

In view of the above, the present invention is directed to a quick coupling.

A quick coupling, comprising:

the joint body is provided with a sliding surface, and a first opening is formed at the sliding surface of the joint body;

the buckle is arranged on the sliding surface in a sliding manner and is provided with a second opening which is communicated with the first opening to form a buckle interface;

the buckle adjusts the position of the second opening relative to the first opening through sliding relative to the sliding surface in a first direction so as to adjust the caliber of the card interface in the first direction;

the buckle is operable to be in a locking position and an unlocking position, the caliber of the card interface in the first direction is smaller when the buckle is in the locking position, and the caliber of the card interface in the first direction is larger when the buckle is in the unlocking position;

the quick coupling further comprises:

a first resilient member that continuously provides a force urging the catch toward the locked position;

the positioning piece moves along a second direction intersecting with the first direction, and the positioning piece enables the buckle to be maintained at the locking position or the releasing position through limiting matching.

The quick coupling described above, wherein, still include: and the second elastic piece drives the positioning piece to move along a second direction intersecting with the first direction.

In the above quick coupling, the first direction is a radial direction of the coupling body, and the second direction is an axial direction of the coupling body.

In the above quick coupling, a positioning matching groove is formed in the second opening, which is close to the positioning element, the positioning element has a first matching portion and a second matching portion arranged along the second direction, and both the first matching portion and the second matching portion are matched with the positioning matching groove;

the positioning piece is operable to be in a first positioning position and a second positioning position, and when the positioning piece is in the first positioning position, the first matching part is matched with the positioning matching groove to maintain the buckle at the locking position; when the positioning piece is located at the second positioning position, the second matching part is matched with the positioning matching groove to enable the buckle to be maintained at the release position.

The above quick coupling, wherein the first engaging portion comprises:

a first radial mating surface that mates with a groove bottom or a groove sidewall of the locating mating groove for maintaining the buckle in the locked position;

the first axial matching surface is matched with the side surface of the buckle facing the joint body, and is used for keeping the positioning piece at the first positioning position.

The above quick coupling, wherein the second mating portion comprises:

the second radial matching surface is matched with the groove wall of the positioning matching groove and used for maintaining the buckle at the loosening position;

and the second axial matching surface is matched with the side surface of the buckle facing the joint body and is used for maintaining the positioning piece at the second positioning position.

In the above quick coupling, the positioning element is a two-stage columnar structure, the positioning element includes a first-stage columnar portion with a larger outer diameter and a second-stage columnar portion with a smaller outer diameter, which are connected to each other, and the second-stage columnar portion is provided with a positioning groove along a radial direction thereof;

the groove bottom of the positioning groove forms the first radial matching surface, and the groove side wall of the positioning groove forms the first axial matching surface;

the side face of one end, close to the first columnar portion, of the second columnar portion forms a second radial matching surface, and the end face of one end, close to the second columnar portion, of the first-stage columnar portion forms a second axial matching surface.

In the above quick coupling, the positioning groove is located on one side of the second-stage columnar portion, and the positioning groove faces the positioning fitting groove.

The quick coupling of the above, wherein the positioning member is allowed to translate in the second direction but not to rotate around the second direction.

In the above quick coupling, the positioning member has a shape that is not a right cylinder and matches with a space for accommodating the positioning member, so as to limit a moving direction of the positioning member and simultaneously limit rotation of the positioning member.

For example, the first-stage columnar portion of the positioning member is hexagonal, and the space for accommodating the positioning member is also hexagonal, so that the positioning member is allowed to translate along the second direction, and the positioning member is not allowed to rotate around the second direction.

For another example, the first-stage columnar portion of the positioning element is a cylindrical structure, one side of the cylindrical structure is cut to form a plane, and the radial cross section of the first-stage columnar portion is in a fan shape. Thereby forming a structure adapted to slide in the axial direction but not adapted to rotate around the axial direction.

In the above quick coupling, an elastic member groove for accommodating the second elastic member is formed at one end of the first-stage columnar portion, which is far away from the second-stage columnar portion.

In the above quick coupling, the snap fastener includes a first plate portion and a second plate portion connected to each other and having an included angle, the first plate portion is slidably disposed on the sliding surface, the second opening is disposed on the first plate portion, and the force provided by the first elastic member acts on the second plate portion.

The above quick coupling, wherein the coupling body includes:

the valve body is provided with the sliding surface, and the valve body is provided with the first opening communicated with one end of the flow channel at the sliding surface;

the connecting pipe is connected with the valve body and is arranged at the other end of the flow channel;

the valve core is arranged at the valve seat and can move relative to the valve seat along the direction of the flow passage.

The quick coupling of the above, wherein, the joint body still includes: the compression spring is sleeved on the valve core, one end of the valve core extends outwards to form a valve core boss, one end of the compression spring abuts against the valve core boss, and the other end of the compression spring abuts against the valve seat.

In the above quick coupling, the valve body is provided with the sliding guide grooves on two sides of the sliding surface, and two sides of the buckle are respectively arranged in the two sliding guide grooves.

Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:

(1) the quick joint can reliably realize locking and loosening, and has the advantages of wide application range, high stability in a locking state and simple structure.

Drawings

FIG. 1 is a cross-sectional view of the quick connector of the present invention.

FIG. 2 is an enlarged cross-sectional view of the positioning member and the peripheral portion of the quick connector of the present invention.

FIG. 3 is an enlarged cross-sectional view of the first resilient member and the peripheral portion of the quick connector of the present invention.

Fig. 4 is an exploded view of the quick connector of the present invention.

Fig. 5a is a perspective view of a first embodiment of a positioning member of the quick coupling of the present invention.

Fig. 5b is a perspective view of a second embodiment of a positioning member of the quick coupling of the present invention.

Fig. 6 is a perspective view of the quick connector of the present invention.

Fig. 7 is a schematic view of the locking position of the quick connector of the present invention.

FIG. 8 is a schematic view of the release position of the quick connector of the present invention.

In the drawings: 1. a connector body; 11. a sliding surface; 12. a first opening; 13. a valve body; 131. a sliding guide groove; 14. taking over a pipe; 15. a valve core; 16. a compression spring; 2. buckling; 21. a second opening; 22. A mating groove; 23. a first plate-like portion; 24. a second plate-like portion; 3. a first elastic member; 4. a positioning member; 411. a first radial mating surface; 412. a first axial mating surface; 421. a second radial mating surface; 422. A second axial mating surface; 43. a first columnar portion; 44. a second cylindrical portion; 441. an elastic member groove; 5. A second elastic member; 6. and locking the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

Fig. 1 is a sectional view of a quick coupling according to the present invention, fig. 2 is an enlarged sectional view of a positioning member and a peripheral portion of the quick coupling according to the present invention, fig. 3 is an enlarged sectional view of a first elastic member and a peripheral portion of the quick coupling according to the present invention, fig. 4 is an exploded view of the quick coupling according to the present invention, fig. 5a is a perspective view of a positioning member of the quick coupling according to the present invention, fig. 5b is a perspective view of a positioning member of the quick coupling according to the present invention, fig. 6 is a perspective view of the quick coupling according to the present invention, fig. 7 is a schematic locking position of the quick coupling according to the present invention, fig. 8 is a schematic releasing position of the quick coupling according to the present invention, and fig. 1 to 8 show a quick coupling according to a preferred embodiment, including: the connector comprises a connector body 1 and a buckle 2, wherein the connector body 1 is provided with a sliding surface 11, and a first opening 12 is formed at the sliding surface 11 of the connector body 1. The buckle 2 is slidably disposed on the sliding surface 11, the buckle 2 has a second opening 21, the second opening 21 communicates with the first opening 11 to form a clamping interface, in other words, the clamping interface is equivalent to a portion where the second opening 21 and the first opening 11 overlap, and the quick connection of the connector is realized through the change of the caliber of the clamping interface.

Further, as a preferred embodiment, the position of the second opening 21 relative to the first opening 11 is adjusted by the buckle 2 sliding relative to the sliding surface 11 in the first direction, so as to adjust the aperture of the buckle interface in the first direction. Specifically, as shown in fig. 1, when the buckle 2 moves in a vertically downward direction in fig. 1, the overlapping portion of the second opening 21 and the first opening 12 increases, and the caliber of the buckle interface increases; when the clip 2 moves in a vertical upward direction in fig. 1, the overlapping portion of the second opening 21 and the first opening 12 decreases, and the caliber of the clip interface decreases.

Further, as a preferred embodiment, the buckle 2 is operable to be in a locking position and a releasing position, and the caliber of the card interface in the first direction is smaller when the buckle 2 is in the locking position and larger when the buckle 2 is in the releasing position.

Further, as a preferred embodiment, the quick coupling further includes: a first elastic element 3, the first elastic element 3 continuously providing a force tending to move the catch 2 towards the locking position. Preferably, the first elastic member 3 may be a spring.

Further, as a preferred embodiment, the quick coupling further includes: the positioning piece 4 moves along a second direction intersecting the first direction, and the positioning piece 4 enables the buckle 2 to be maintained at a locking position or a releasing position through limiting matching. Preferably, the positioning member 4 is a positioning pin.

Further, as a preferred embodiment, the quick coupling further includes: and a second elastic member 5, wherein the second elastic member 5 drives the positioning member 4 to move along a second direction intersecting the first direction. Preferably, the second elastic member 5 may be a spring.

Further, as a preferred embodiment, the first direction is a radial direction of the joint body 1 (i.e., a vertical direction in fig. 1), and the second direction is an axial direction of the joint body 1 (i.e., a horizontal direction in fig. 1).

Further, as a preferred embodiment, a positioning matching groove 22 is formed at a position of the second opening 21 close to the positioning element 4, the positioning element 4 has a first matching portion and a second matching portion arranged along the second direction, and the first matching portion and the second matching portion are both matched with the positioning matching groove 22.

Further, as a preferred embodiment, the positioning member 4 is operable to be located at a first positioning position and a second positioning position, and when the positioning member 4 is located at the first positioning position, the first engaging portion engages with the positioning engaging groove 22 to maintain the buckle 2 at the locking position; when the positioning member 4 is at the second positioning position, the second engaging portion engages with the positioning engaging groove 22 to maintain the catch 2 at the releasing position.

Further, as a preferred embodiment, the first fitting portion includes: the first radial engagement surface 411, the first radial engagement surface 411 matches with the groove bottom or the groove side wall of the positioning engagement groove 22 for maintaining the clip 2 in the locked position. Referring to FIG. 2, in one preferred embodiment, the first radial mating surface 411 is a side surface of the portion of the positioning member 4 having the smallest outer diameter. Wherein the part of the positioning member 4 with the smallest outer diameter is formed by a groove opened on the side surface of the positioning member 4 like in fig. 4 and 5.

Further, as a preferred embodiment, the first fitting portion includes: the first axial mating surface 412, the first axial mating surface 412 matches with a side surface of the buckle 2 facing the connector body 1, for maintaining the positioning member 4 at the first positioning position. Referring to fig. 2, in one preferred embodiment, the first axial engagement surface 412 is a surface adjacent to the first radial engagement surface 411 and intersecting or even perpendicular to the first radial engagement surface 411.

Further, as a preferred embodiment, the second fitting portion includes: a second radial engagement surface 421, the second radial engagement surface 421 matching with the groove wall of the positioning engagement groove 22 for maintaining the clip 2 at the release position. Referring to fig. 2, in a preferred embodiment, the second radial engagement surface 421 is a side surface of a portion of the positioning member 4 having an outer diameter between the minimum outer diameter of the positioning member 4 and the maximum outer diameter of the positioning member 4.

Further, as a preferred embodiment, the second fitting portion includes: the second axial matching surface 422, the second axial matching surface 422 matches with the side surface of the buckle 2 facing the joint body 1, for maintaining the positioning member 4 at the second positioning position. Referring to fig. 2, in one preferred embodiment, the second axial engagement surface 422 is a surface adjacent to the second radial engagement surface 421 and intersecting or even perpendicular to the second radial engagement surface 421.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, the positioning element 4 is a two-stage columnar structure, the positioning element 4 includes a first-stage columnar portion 43 with a larger outer diameter and a second-stage columnar portion 44 with a smaller outer diameter, which are connected to each other, and the second-stage columnar portion 44 is provided with a positioning groove along a radial direction thereof.

In a further embodiment of the present invention, the bottom of the positioning slot forms a first radial mating surface 411, and the side wall of the positioning slot forms a first axial mating surface 412.

In a further embodiment of the present invention, a side surface of the second columnar portion 44 near one end of the first columnar portion 43 forms a second radial mating surface 421, and an end surface of the first-stage columnar portion 43 near one end of the second-stage columnar portion 44 forms a second axial mating surface 422.

In a further embodiment of the invention, the detent is located on one side of the second stage cylindrical portion, with the detent facing the detent mating groove 22.

In a further embodiment of the invention, the positioning element 4 is allowed to translate in the second direction and not to rotate around the second direction.

In a further embodiment of the present invention, the positioning member 4 has a shape that is not a right circular cylinder that matches a space (i.e., a positioning member slot described below) for accommodating the positioning member 4, so as to restrict the movement direction of the positioning member 4 and to restrict the rotation of the positioning member 4.

In a preferred embodiment, as shown in fig. 5a, the first-stage cylindrical portion 43 of the positioning element 4 has a hexagonal cylindrical structure, and the space for accommodating the positioning element is also hexagonal, so as to allow the positioning element 4 to translate along the second direction, while not allowing the positioning element 4 to rotate around the second direction.

In another preferred embodiment, as shown in fig. 5b, the first-stage cylindrical portion 43 of the positioning member 4 is a cylindrical structure, and one side of the cylindrical structure is cut to form a plane, so that the radial cross section of the first-stage cylindrical portion 43 is a sector, as shown in fig. 2. Thereby forming a structure adapted to slide in the horizontal direction in fig. 2 but not adapted to rotate about the horizontal direction in fig. 2.

In other preferred embodiments, the outer peripheral surface of the second-stage columnar portion 44 of the positioning member 4 may be a quadrilateral, an oval, or other shapes that are not suitable for rotation.

In a further embodiment of the present invention, an end of the first-stage column portion 43 away from the second-stage column portion 44 is opened with an elastic member groove 441 for accommodating the second elastic member 5.

In a further embodiment of the invention, the buckle 2 comprises a first plate-like part 23 and a second plate-like part 24 connected to each other and having an included angle, the first plate-like part 23 is slidably arranged on the sliding surface 11, the second opening 21 opens onto the first plate-like part 23, and the force provided by the first elastic member 3 acts on the second plate-like part 24.

In a further embodiment of the invention, the joint body 1 comprises: the valve body 13, be equipped with the runner in the valve body 13, the middle part of runner inwards extends and forms annular valve seat, and valve body 13 possesses glide plane 11, and valve body 13 forms the first opening 12 that is linked together with the one end of runner in glide plane 11 department.

In a further embodiment of the invention, the joint body 1 comprises: and the connecting pipe 14 is connected with the valve body 13, and the connecting pipe 14 is arranged at the other end of the flow passage. Preferably, the nipple 14 is a Y-shaped nipple. More preferably, the adapter 14 is assembled to the valve body 13 through an E-shaped retainer ring, and an O-ring is further provided between the adapter 14 and the valve body 13.

In a further embodiment of the invention, the joint body 1 comprises: and a valve core 15, wherein the valve core 15 is arranged at the position of the valve seat, and the valve core 15 can move relative to the valve seat along the direction of the flow passage.

In a further embodiment of the invention, the joint body 1 further comprises: the compression spring 16 is sleeved on the valve core 15, one end of the valve core 15 extends outwards to form a valve core boss, one end of the compression spring 16 abuts against the valve core boss, and the other end of the compression spring 16 abuts against the valve seat.

Preferably, the other end of the valve core 15 is provided with an O-ring, and the O-ring at the other end of the valve core 15 is matched with the valve seat to realize sealing.

In a further embodiment of the present invention, the valve body 13 is formed with sliding guide grooves 131 on both sides of the sliding surface 11, and both sides of the clip 2 are respectively disposed in the two sliding guide grooves 131.

In a further embodiment of the present invention, referring to fig. 2, a positioning member groove for accommodating the positioning member 4 is formed on one side of the valve body 13 along an axial direction of the valve body 13, the positioning member 4 is disposed in the positioning member groove, the second elastic member 5 is also disposed in the positioning member groove, one end of the second elastic member 5 abuts against the positioning member groove, and the other end of the second elastic member 5 abuts against the elastic member groove 441.

In a further embodiment of the present invention, please refer to fig. 3, a driving groove for accommodating the first elastic member 3 is formed on the other side of the valve body 13 along the radial direction of the valve body 13, a positioning column for positioning the first elastic member 3 is further disposed in the driving groove, one end of the first elastic member 3 is disposed in a gap between the driving groove and the positioning column, and the other end of the first elastic member 3 abuts against the second plate-shaped portion 24 of the buckle 2 to drive the buckle 2 to keep a trend of moving in a vertical upward direction in fig. 3.

In a further embodiment of the invention, the outer surface of the valve body 13 is provided with a threaded section, and the valve body 13 is further provided with a locking nut 6.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. A quick coupling, comprising:

the quick coupling further comprises:

2. The quick connector of claim 1, further comprising: and the second elastic piece drives the positioning piece to move along a second direction intersecting with the first direction.

3. The quick connector of claim 2, wherein the first direction is a radial direction of the connector body and the second direction is an axial direction of the connector body.

4. The quick coupling according to claim 2 or 3, wherein a positioning fitting groove is formed in the second opening near the positioning member, the positioning member has a first fitting portion and a second fitting portion arranged along the second direction, and both the first fitting portion and the second fitting portion are matched with the positioning fitting groove;

5. The quick connector according to claim 4, wherein the first mating portion comprises:

6. The quick connector according to claim 5, wherein the second mating portion comprises:

7. The quick connector according to claim 6, wherein the positioning member is a two-stage columnar structure, the positioning member comprises a first-stage columnar portion with a larger outer diameter and a second-stage columnar portion with a smaller outer diameter, which are connected with each other, and a positioning groove is formed in the second-stage columnar portion along the radial direction of the second-stage columnar portion;

8. The quick connector of claim 7, wherein said detent is located on one side of said second-stage cylindrical portion, said detent being directly opposite said detent mating groove.

9. The quick connector of claim 7, wherein the positioning member is permitted to translate in the second direction and not to rotate about the second direction.

10. The quick connector of claim 7, wherein an end of the first-stage cylindrical portion distal from the second-stage cylindrical portion defines an elastic member slot for receiving the second elastic member.

11. The quick connector according to claim 1, wherein the snap comprises a first plate and a second plate connected to each other and having an included angle, the first plate is slidably disposed on the sliding surface, the second opening is opened on the first plate, and the force provided by the first elastic member acts on the second plate.

12. The quick connector of claim 1, wherein the connector body comprises:

13. The quick connector of claim 12, wherein the connector body further comprises: the compression spring is sleeved on the valve core, one end of the valve core extends outwards to form a valve core boss, one end of the compression spring abuts against the valve core boss, and the other end of the compression spring abuts against the valve seat.

14. The quick connector according to claim 12, wherein the valve body has sliding guide grooves formed on both sides of the sliding surface, and both sides of the snap fit are respectively disposed in the two sliding guide grooves.