CN111734908A

CN111734908A - Quick-insertion connecting structure

Info

Publication number: CN111734908A
Application number: CN202010601361.7A
Authority: CN
Inventors: 周珍意
Original assignee: Taizhou Zhengming Smart Home Technology Co ltd
Current assignee: Taizhou Zhengming Smart Home Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-02

Abstract

The invention relates to the technical field of pipeline connection, in particular to a quick-plug connection structure. Insert connection structure soon, including male joint and female joint, the female joint include the casing, with casing sliding connection's buckle spare, the male joint accessible the buckle spare with the female joint is connected fixedly, the male joint includes detachable C type circle, C type circle both sides are equipped with a pair of spacing post, the buckle spare be equipped with the spout that spacing post corresponds, the spout middle part is equipped with blocks the arch, the observation hole is established to the casing, block protruding with it is fixed to observe the hole cooperation spacing post makes the male joint with the female joint is connected fixedly. The rotation and the movement of the C-shaped ring are controlled by the buckle part in sliding connection with the shell, so that the male connector and the female connector are quickly connected, and the connecting structure has the beneficial effects of simple structure, convenience in connection and long service life.

Description

Quick-insertion connecting structure

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a quick-plug connection structure.

Background

A connector is a device for transporting fluids such as gas, liquid, etc. and is generally formed by connecting pipes, pipe connectors, valves, etc.

Referring to fig. 1, chinese patent publication No. CN106764182B discloses a quick connector, which includes a male connector and a female connector, and is characterized in that: the quick connector also comprises a fastener, and the male connector is connected to the female connector through the fastener;

the male connector is of a hollow structure and comprises a male connecting pipe, a first hose connecting part, a first annular bulge and a second annular bulge, the first hose connecting part is arranged at the front end of the male connecting pipe, the second annular bulge is arranged at the middle front part of the male connecting pipe, the first annular bulge is positioned at the rear side of the second annular bulge, and a clamping part is arranged between the first annular bulge and the second annular bulge; the outer diameter of the second annular bulge is larger than that of the first annular bulge;

the female joint is of a hollow structure and comprises an opening structure, a female connecting pipe and a second hose connecting part, wherein the opening structure is arranged at the front end of the female connecting pipe, the second hose connecting part is arranged at the rear end of the female connecting pipe, the opening structure is provided with a through pipe inserting hole along the front-rear axial direction, the upper side and the lower side of the opening structure are respectively provided with a clamping port, the two clamping ports are arranged in a central symmetry manner, and the clamping ports are communicated with the pipe inserting hole; the clamping interface is arc-shaped, a buckle groove is formed in one side of the clamping interface in the left and right direction, a fan-shaped side chamber is formed in the front side of the middle of the clamping interface, and transverse columns which are arranged front and back are arranged on the other side of the clamping interface in the left and right direction;

the buckling piece is arc-shaped and comprises an arc-shaped body, a buckling head, a fan-shaped side convex part, a fan-shaped lower convex block and a rotating part, one end of the arc-shaped body is provided with the buckle head, the middle part of the inner arc surface of the arc-shaped body is provided with the fan-shaped lower convex block, the fan-shaped side protrusions are positioned at the front side of the fan-shaped lower protrusions and are arranged in the middle of the arc-shaped body, the outer arc surface of the fan-shaped side convex part and the outer arc surface of the arc-shaped body are on the same arc surface, the other end of the arc-shaped body is provided with the rotating part, the buckle head is clamped in the buckle groove, the fan-shaped side bulge is positioned in the fan-shaped side chamber, the inner arc surface of the other end of the arc-shaped body is lapped on the cross column and is attached to the outer surface of the cross column, the rotating part is rotatably arranged on the other side of the clamping port in the left-right direction through a rotating shaft, and the outer surface of the arc-shaped body and the outer surface of the opening structure are on the same arc surface;

the fan-shaped side chamber is also provided with a notch at one side close to the rotating part of the clamping piece, the clamping piece is provided with a first clamping piece and a second clamping piece respectively, and the first clamping piece and the second clamping piece are arranged in a central symmetry manner and are respectively clamped in clamping ports at the upper side and the lower side of the opening structure;

the arcwall face of lug is contradicted in the joint portion of male joint under fan-shaped, the second annular arch of male joint is located open structure's front side and with the laminating of open structure, the trailing flank of lug is laminated with the bellied leading flank of first annular under fan-shaped.

The buckle spare of female joint among the prior art need open the buckle spare when fixed or dismantlement male joint, and it is loaded down with trivial details to play steps and causes the use unchangeable, and buckle spare and female joint articulated mode easily cause not hard up in long-term use, influences life.

Disclosure of Invention

The invention aims to provide a quick-insertion connecting structure which is simple in structure, convenient to connect and long in service life.

In order to achieve the advantages, the quick-plug connecting structure provided by the invention comprises a male connector and a female connector, wherein the female connector comprises a shell and a clamping part in sliding connection with the shell, the male connector can be fixedly connected with the female connector through the clamping part, the male connector comprises a detachable C-shaped ring, a pair of limiting columns are arranged on two sides of the C-shaped ring, the clamping part is provided with a sliding groove corresponding to the limiting columns, a blocking bulge is arranged in the middle of the sliding groove, the shell is provided with an observation hole, and the blocking bulge is matched with the observation hole to fix the limiting columns so that the male connector is fixedly connected with the female connector.

In one embodiment of the invention, the two ends of the male joint are provided with a first hose connecting part and a sealing section, the middle part of the male joint is provided with a second limiting groove, and the C-shaped ring is sleeved in the second limiting groove.

In one embodiment of the invention, an opening is formed between the pair of limiting columns of the C-shaped ring.

In an embodiment of the present invention, one end of the fastening member located in the casing is provided with a limit buckle, the other end is provided with the limit ring, and the limit ring is provided with a pressing portion located outside the sliding groove.

In one embodiment of the invention, the shell is provided with a clamping groove corresponding to the limiting buckle, and one end of the hose connecting part, which is close to the C-shaped ring, is provided with an annular bulge corresponding to the limiting ring.

In one embodiment of the invention, the observation hole is provided with a first blocking surface corresponding to one side of the limiting column, and the blocking bulge is provided with a second blocking surface corresponding to the adjacent side of the limiting column.

In one embodiment of the invention, the blocking projection is further provided with a guiding bevel facing the chute, the guiding bevel being adjacent to the second blocking face.

In one embodiment of the invention, the sealing section is provided with a pair of sealing rings, and an abutting part corresponding to the end part of the sealing section is arranged in the shell.

In an embodiment of the present invention, when the locking member allows the limiting column to enter the observation hole through the sliding groove or allows the limiting column to move from the observation hole to the sliding groove, the locking member is in a released state; when the buckling piece limits the limiting column to enter the observation hole through the sliding groove or limits the limiting column to move to the sliding groove from the observation hole, the first blocking surface and the second blocking surface are matched to limit rotation and movement of the limiting column, and at the moment, the buckling piece is in a fixed state.

In one embodiment of the invention, the female connector further comprises a return spring for keeping the snap in a fixed state.

In the invention, the rotation and the movement of the C-shaped ring are controlled by the buckling piece in sliding connection with the shell, so that the male joint and the female joint are quickly connected, and the connecting structure has the beneficial effects of simple structure, convenience in connection and long service life.

Drawings

Fig. 1 is a schematic structural diagram of a quick connector in the prior art.

Fig. 2 is a schematic structural diagram of a quick-connect structure according to a first embodiment of the present invention.

Fig. 3 is a sectional view of the quick-connect structure of fig. 2.

Fig. 4 is a schematic structural view of the male connector of the quick-connect structure of fig. 2.

Fig. 5 is an exploded view of the male connector of the quick-connect coupling of fig. 4.

Fig. 6 is a schematic structural view of a female connector of the quick-connect coupling of fig. 2.

Fig. 7 is a sectional view of the female connector of the quick-connect coupling of fig. 6.

Fig. 8 is a sectional view of the female connector of the quick-connect coupling of fig. 6.

Fig. 9 is a schematic structural view of a fastener of the quick-connect structure of fig. 2.

Fig. 10 is a schematic structural diagram of a quick-connect structure according to a second embodiment of the invention.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be provided with reference to the accompanying drawings and preferred embodiments for describing specific embodiments, structures, features and effects thereof.

Referring to fig. 2 and 3, the first embodiment of the present invention includes a male connector 1 and a female connector 2 detachably connected to the male connector 1, where the female connector 2 includes a housing 3 and a locking member 4 slidably connected to the housing 3 in a length direction, and the male connector 1 is connected and fixed to the female connector 2 through the locking member 4.

Referring to fig. 4 and 5, the male connector 1 has a hose connecting portion 11 and a sealing portion 12 at two ends, the male connector 1 has a limiting groove 13 in the middle, and the limiting groove 13 has a C-shaped ring 5 corresponding to the fastener 4. The hose connecting part 11 is composed of a plurality of one-way limiting rings, and an annular bulge 14 is arranged at one end, close to the C-shaped ring 5, of the hose connecting part 11. The C-shaped ring 5 is sleeved outside the limiting groove 13, and the C-shaped ring 5 can rotate along the limiting groove 13. A pair of limiting columns 51 are arranged on two sides of the C-shaped ring 5, and the cross sections of the limiting columns 51 are square. An opening 52 is formed between the pair of limiting columns 51 of the C-shaped ring 5, and the C-shaped ring 5 can be mounted or dismounted by changing the size of the opening 52.

One of the right angles of the limiting column 51 faces the sealing section 12, the sealing section 12 is provided with a pair of sealing rings 121, and the housing 3 is provided with an abutting part 31 corresponding to the end part of the sealing section 12.

Referring to fig. 6, 7 and 8, the housing 3 is provided with a slot 32 and an observation hole 33, and the observation hole 33 is used for observing the connection condition of the limiting column 51. The observation hole 33 is provided with a first blocking surface 331 for corresponding to one side of the stopper post 51.

The fastener 4 is provided with a sliding groove 41 corresponding to the limiting column 51, the sliding groove 41 extends inwards, the sliding groove 41 is of an L shape, a square hole 42 is formed in the end portion of the sliding groove 41, and a blocking protrusion 45 is arranged in the middle of the sliding groove 41. The fastener 4 is further provided with a limit buckle 43 corresponding to the slot 32, the limit buckle 43 can axially move in the slot 32, and the slot 32 limits the moving distance of the fastener 4. The outer end of the fastener 4 is provided with a limit ring 44 corresponding to the annular protrusion 14, and the limit ring 44 is provided with a pressing portion 441 located outside the sliding groove 41. The limiting ring 44 and the limiting ring 44 are positioned at two ends of the fastener 4.

Referring to fig. 9, the blocking protrusion 45 is provided with a second blocking surface 451 corresponding to the other side of the position-limiting post 51, the second blocking surface 451 faces the square hole 42, the second blocking surface 451 can move to a position adjacent to the first blocking surface 331, and the first blocking surface 331 and the second blocking surface 451 cooperate to fix the position-limiting post 51 in the square hole 42. The blocking projection 45 is further provided with a guide slope 452 facing the slide groove 41, the guide slope 452 being adjacent to the second blocking surface 451.

When the fastener 4 is pressed, the limiting ring 44 contacts the end of the housing 3 and allows the limiting column 51 to enter the observation hole 33 through the sliding groove 41 or allows the limiting column 51 to move to the sliding groove 41 from the observation hole 33, and at this time, the fastener 4 is in a released state.

When the fastener 4 is reset by the reset spring 6, the slot 32 limits the movement of the position-limiting buckle 43, and limits the rotation and movement of the position-limiting post 51 through the second blocking surface 451 of the blocking protrusion 45 and the first blocking surface 331 of the observation hole 33, at this time, the position-limiting post 51 is fixed in the square hole 42, and the fastener 4 is in a fixed state. In the fixed state, the square hole 42 is partially overlapped with the observation hole 33, and the limit column 51 can be seen through the observation hole 33.

The latch 4 is provided with a return spring 6, the return spring 6 is used for keeping the latch 4 in a fixed state, and the return spring 6 is located between the latch 4 and the housing 3.

When the male connector 1 is connected with the female connector 2, the sealing section 12 is aligned with the insertion opening of the fastener 4, the pair of limiting posts 51 need to be rotated to positions corresponding to the sliding grooves 41, then the male connector 1 is inserted, and in the insertion process, the limiting posts 51 press the guide inclined surfaces 452 of the blocking protrusions 45, so that the fastener 4 moves into the shell 3; then the fastener 4 moves to a position allowing the limiting column 51 to enter the observation hole 33, and simultaneously the C-shaped ring 5 rotates along the guide inclined surface 452 of the blocking protrusion 45 and enables the limiting column 51 to enter the observation hole 33; then the fastener 4 moves towards the outside of the housing 3 under the action of the return spring 6, so that the limiting ring 44 of the fastener 4 contacts with the annular protrusion 14 of the male connector 1, meanwhile, the second blocking surface 451 of the blocking protrusion 45 contacts with one side of the limiting column 51, the first blocking surface 331 of the observation hole 33 contacts with the other side of the limiting column 51, the blocking protrusion 45 and the observation hole 33 cooperate to limit the rotation and the movement of the limiting column 51, and finally, the abutting part 31 limits the position of the sealing section 12 and enables the male connector 1 and the female connector 2 to complete sealing connection through the pair of sealing rings 121.

When the male connector 1 is separated from the female connector 2, the blocking protrusion 45 is moved into the housing 3 by pressing the pressing portion 441, at this time, the blocking protrusion 45 releases the restriction on one side of the limiting column 51 and allows the limiting column 51 to enter the sliding groove 41 from the observation hole 33, then the male connector 1 is pulled out, and in the pulling-out process, the C-shaped ring 5 rotates along the first blocking surface 331 and allows the limiting column 51 to enter the sliding groove 41 from the observation hole 33, and finally the male connector 1 can be pulled out along the sliding groove 41.

When the stopper is pulled out by force, the second blocking surface 451 and the first blocking surface 331 are pressed by the stopper post 51, so that the stopper is pulled more and more tightly, and the force applied by the stopper post 51 to the first blocking surface 331 is larger than the force applied to the second blocking surface 451.

Referring to fig. 10, in a second embodiment of the present invention, the hose connecting portion 11 is made of metal, and the hose connecting portion 11 and the hose are connected by a clip or a flange.

In the invention, the male connector is axially fixed by fixing the limiting column, so that the structure is simpler.

According to the invention, the machining precision and complexity of the male connector are reduced by the detachable C-shaped ring.

In the invention, the buckle piece is automatically reset through the reset spring, so that the buckle piece has the beneficial effect of convenient installation.

In the invention, the movement of the limiting column is controlled by changing the position of the blocking bulge, so that the limiting column has the beneficial effect of convenient connection.

In the invention, the blocking bulge is matched with the observation hole to fix the limit column, so that the male connector and the female connector are connected and fixed, and the connecting structure has the beneficial effects of good holding force and pull-out prevention.

In the invention, the rotation and the movement of the C-shaped ring are controlled by the clamping piece in sliding connection with the shell, so that the male connector and the female connector are quickly connected, and the connecting structure has the beneficial effects of simple structure, convenience in connection and long service life.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a fast connection structure that inserts, includes male joint and female joint, its characterized in that, the female joint include the casing, with casing sliding connection's buckle spare, the male joint accessible the buckle spare with female joint connects fixedly, the male joint includes detachable C type circle, C type circle both sides are equipped with a pair of spacing post, the buckle spare be equipped with the spout that spacing post corresponds, the spout middle part is equipped with blocks the arch, the observation hole is established to the casing, block protruding with it is fixed to observe the hole cooperation spacing post makes the male joint with female joint connects fixedly.

2. The quick-plug connection structure according to claim 1, wherein a first hose connection portion and a sealing section are arranged at two ends of the male connector, a second limiting groove is arranged in the middle of the male connector, and the C-shaped ring is sleeved in the second limiting groove.

3. The quick-connect coupling of claim 1, wherein an opening is provided in the C-ring between the pair of retention posts.

4. The quick-plug connection structure according to claim 1, wherein one end of the buckle located in the housing is provided with a limit buckle, the other end is provided with the limit ring, and the limit ring is provided with a pressing portion located outside the sliding groove.

5. The quick-insertion connecting structure as claimed in claim 4, wherein the housing is provided with a clamping groove corresponding to the limit buckle, and an annular protrusion corresponding to the limit ring is provided at one end of the hose connecting portion close to the C-shaped ring.

6. The quick-plug connection structure according to claim 1, wherein the observation hole is provided with a first blocking surface for corresponding to one side of the limit post, and the blocking protrusion is provided with a second blocking surface corresponding to an adjacent side of the limit post.

7. The quick-connect coupling of claim 6, wherein the stop projection is further provided with a guide ramp facing the chute, the guide ramp being adjacent the second stop surface.

8. The quick-connect coupling structure of claim 2, wherein the sealing segment is provided with a pair of sealing rings, and an abutting portion is provided in the housing for corresponding to an end of the sealing segment.

9. The quick-plug connection structure according to claim 6, wherein when the fastener allows the limiting column to enter the observation hole through the chute or allows the limiting column to move from the observation hole to the chute, the fastener is in a released state; when the buckling piece limits the limiting column to enter the observation hole through the sliding groove or limits the limiting column to move to the sliding groove from the observation hole, the first blocking surface and the second blocking surface are matched to limit rotation and movement of the limiting column, and at the moment, the buckling piece is in a fixed state.

10. The quick-connect coupling of claim 9, wherein the female connector further comprises a return spring for holding the catch in a secured state.