KR102250122B1 - One touch high pressure connect - Google Patents

Abstract

The present invention relates to a one-touch high-pressure connector that can be easily connected and disconnected in a one-touch manner when connecting a hydraulic hose or a coolant hose of a mold apparatus, and can maintain a stable airtight state even under high pressure conditions.
The present invention implements a new one-touch connector capable of fastening and disengaging operation using a locking and unlocking method using a stop ring having a characteristic that is extended or restored upon fastening and disengaging of a socket and a plug, thereby fastening and disengaging through a one-touch method. It provides a one-touch high-voltage connector that can reduce the size of the connector by reducing the volume of the connector and making it useful in high-pressure conditions as it can be used very easily and a stable fastening state can be secured.

Description

One touch high pressure connector {ONE TOUCH HIGH PRESSURE CONNECT}

The present invention relates to a one-touch high-pressure connector, and more particularly, a one-touch high-pressure connector that can be easily connected and disconnected by a one-touch method when connecting a hydraulic hose or a coolant hose of a mold apparatus and maintains a stable airtight state even under high pressure conditions. It is about.

In general, QUICK CONNECT refers to a connector. When a fluid such as water, oil, gas, air, etc. is moved to a long distance using a hose or fighting means, a connection between a hose and a hose, a pipe and a pipe, or a hose and a pacif. It is a coupling means made to perform quickly.

This quick connector allows simple connection of hoses and hoses, pipes and pipes without separate assembly tools, and is used for connection of pipes used in hydraulic equipment such as molds, connection of air pipes connected to air equipment, and gas equipment. It is widely used for connection of gas pipes.

In recent years, because of the quick coupling of the quick connector, it is also used for a binner, which is a kind of climbing equipment, and the range of use thereof is expanding to include firefighting.

Such a quick connector is largely composed of a socket, a coupler, a valve installed on the inner side of the coupler to smooth the flow of fluid and prevent reverse flow, and a plug connected by hydraulic pressure, gas, air, and the like.

In addition, the coupler includes a coupler body, a sleeve fitted and fixed on the outer side of the coupler body and elastically installed to move back and forth, and a locking inserted into the coupler body to fix the plug while moving up and down as the sleeve moves. It consists of a ball.

In the quick connector constructed in this way, first, a socket is fitted on one side of the coupler and a plug is fitted on the other side.

At this time, the sleeve coupled to the outer portion of the coupler body is retracted by applying a force, and the locking ball is released so that it can move while freely flowing up and down, and then the plug is pushed into the coupler body to be inserted.

The plug is inserted into the coupler body and simultaneously pushes up the locking ball, and the locking ball is seated in a locking groove formed in the plug.

Thereafter, when the forcibly retracted sleeve moves forward elastically and returns to its original position and is located at the top of the rocking ball, the sleeve compresses the rocking ball and the rocking ball compresses the plug so that the plug does not come off. It is firmly fixed.

On the other hand, the sleeve is elastically repelled by a spring inserted into the coupler body to move back and forth.

Therefore, when the conventional quick connector is to be connected by inserting the plug, hold the plug with one hand and grip the coupler with the other hand, and at the same time hold the sleeve with two fingers and apply force to retreat, and at the same time The plug held in the other hand is inserted into the coupler, and the sleeve is released to move forward elastically by the force of the spring to fix the plug.

This type of quick connector has a problem that is very cumbersome and inconvenient because the sleeve must always be retracted and a plug must be inserted and fixed during fastening and disconnection operations.

In particular, since the conventional quick connector has a structure that maintains the fastening force using a ball and a spring, it is difficult to apply under high pressure conditions using oil as the working fluid, so it is mainly applied only in low pressure environments using water as the working fluid. There is a limit, and it is difficult to miniaturize due to the space constraints occupied by balls or springs, so that it is difficult to apply to pipes of Ø25 or less.

Korea Public Utility Model No. 20-2011-0004978 Korean Patent Application Publication No. 10-2017-0142302 Korean Patent Registration No. 10-0605095 Korean Patent Application Publication No. 10-2017-0008453 Korean Patent Application Publication No. 10-2010-0124034

Accordingly, the present invention was devised in view of the above, and a new one-touch connector capable of fastening and disengaging operation using a locking and unlocking method using a stop ring having a characteristic that expands or restores when fastening and disengaging a socket and a plug. By implementing a one-touch method, fastening and disassembling work can be performed very easily, and a stable fastening state can be secured, so that it can be used usefully under high pressure conditions, and the volume of the connector can be reduced, thereby miniaturizing the connector. Its purpose is to provide a one-touch high-voltage connector that can be used.

In order to achieve the above object, the one-touch high-voltage connector provided by the present invention has the following characteristics.

The one-touch high-pressure connector has a socket installed in a fastening structure on the facility side, a ring engaging groove at the tip, and can be fastened and detached on the socket side, and a plug to which a hose is connected at the rear end, and a plug installed on the inner peripheral surface of the socket A stop ring that locks or unlocks the plug side while being caught or separated from the locking groove, and an open bushing installed on the inner circumferential surface of the front end of the socket and movable inward and outward and restraining the movement of the stop ring to the outside; It is characterized in that it comprises an open nut that is installed on the outer circumferential surface of the front end of the socket, is movable inward and outward, and serves to push the open bushing inward.

Here, the front end of the socket may be formed with an inclined protrusion that serves to push and open the stop ring in the front adjacent to the ring engaging groove.

In addition, the one-touch connector may further include a sleeve stop ring that is interposed between the outer peripheral surface of the front end of the socket and the inner peripheral surface of the rear end of the open nut to prevent separation of the open nut.

As a preferred embodiment, the plug may be formed in various shapes such as a straight shape, a 90° bent “A” shape, and the like.

The one-touch high-voltage connector provided by the present invention has the following effects.

First, since the plug can be simply inserted and removed from the socket in a one-touch method, there is an effect that it is easy and convenient to connect and disconnect the connector.

Second, by applying a locking and unlocking method using a stop ring with extended or restored characteristics, it is possible to secure a stable fastening state even under high pressure conditions, so that optimal functionality can be exhibited in a high pressure environment using oil. There is.

Third, by replacing the existing springs and balls, which occupy a lot of space and have a large volume, with a stop ring, there is an effect that the number of parts can be reduced and the size of the connector can be reduced, and accordingly, a wide range of applications can be secured. There is an effect that can greatly reduce the production cost.

Fourth, there is an effect of securing the quality of the product, such as improving the reliability of the product, such as being easy and convenient to operate, and increasing the functionality and durability.

1 to 3 are perspective views showing a one-touch high-voltage connector according to an embodiment of the present invention
4 is a cross-sectional view showing a one-touch high-voltage connector according to an embodiment of the present invention
5A to 5C are cross-sectional views illustrating a separation process of a one-touch high-voltage connector according to an embodiment of the present invention.
6 and 7 are perspective views showing a one-touch high-voltage connector according to another embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 are perspective views illustrating a one-touch high-voltage connector according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating a one-touch high-voltage connector according to an embodiment of the present invention.

As shown in Figs. 1 to 4, the one-touch high-voltage connector uses a stop ring showing an extended or restored operation characteristic to lock or unlock the socket and the plug, thereby reducing the fastening and disengaging of the connector. It is easy to do, and it has the feature of securing a tight and stable fastening state even under high pressure conditions.

To this end, the one-touch high-voltage connector includes a socket 10 installed in a structure that is fastened to the facility (reference numeral 100 in FIGS. 5A to 5C).

The socket 10 has a hollow cylindrical body, and a threaded part and a hexagonal nut part are formed on the outer circumferential surface of the rear end and the middle part of the cylindrical body, respectively, and are fastened to the facility side through the threaded part, and the hexagonal nut part is a tool such as a spanner. It is used as a place to hang.

The outer peripheral surface of the front end of the socket 10 has a ring seating groove 18 formed along the periphery of the outer peripheral surface, and a sleeve stop ring 17 to be described later can be positioned in the ring seating groove 18 at this time.

In addition, on the inner circumferential surface of the front end of the socket 10, a bushing locking protrusion 19 is formed along the inner circumference of the inner circumferential surface, and the open bushing 14 to be described later does not enter the inner circumference of the bushing locking protrusion 19 at this time. It will play a role of preventing them from being prevented.

In particular, a ring avoiding groove 20 and a ring catching groove 21 are connected to each other at an inner position adjacent to the position where the bushing catching protrusion 19 is formed on the inner circumferential surface of the front end of the socket 10, and at this time, the ring avoidance The groove 20 and the ring engaging groove 21 can be formed in the form of a groove connected to each other.

In addition, the ring avoidance groove 20 has an inner diameter sufficient to accommodate the extended stop ring 13, and the ring locking groove 21 has a relatively small inner diameter compared to the ring avoidance groove 20. Will be made.

In this way, when the stop ring 13 is in the position of the ring avoiding groove 20 as the ring avoiding groove 20 and the ring locking groove 21 have an inner diameter difference between each other, the plug 12 to be described later When the stop ring 13, which is spread by the inclined protrusion 16 of, is expanded and enters the inside of the ring avoidance groove 20, the plug 12 can come out from the socket 10 side. When the ring 13 is in the position of the ring engaging groove 21, even if the inclined protrusion 16 of the plug 12 tries to open the stop ring 13, it is blocked by the ring engaging groove 21 to a certain extent. Is not extended, so that the plug 21 cannot be pulled out from the socket 10 side.

Here, the O-ring 22 is mounted on the inner circumferential surface of the socket 10, and the O-ring 22 at this time is compressed to the outer circumferential surface of the plug 12 fastened to the socket 10 to maintain airtightness. Will play a role.

In addition, the one-touch high-voltage connector includes a plug 12 that is fastened and detachable to the socket 10 side.

The plug 12 has a hollow cylindrical body, and a plurality of wedge-shaped locking portions 23 are formed on the outer circumferential surface of the rear end of the cylindrical body, so that the plug 12 is fitted into a hose (reference numeral 110 in FIGS. 5A to 5C). Can be combined.

The plug 12 may be formed in various shapes other than the straight shape, for example, as shown in FIGS. 6 and 7, it may be formed in a "a" shape that is bent by 90°.

In addition, a ring engaging groove 11 is formed along the periphery of the outer circumferential surface of the distal end of the plug 12, and the stop ring 13 is fitted and caught in the ring engaging groove 11 at this time, so that the plug 12 It is possible to be fastened to the socket 10 side while maintaining the locked state.

In particular, on the outer circumferential surface of the front end of the socket 10, an inclined protrusion 16 is formed along the circumference of the outer circumferential surface at a position adjacent to the position where the ring engaging groove 11 is formed, and at this time, the inclined protrusion 16 ) Serves to open the stop ring 13 by pushing it outward in the radial direction.

For example, the inclined protrusion 16 is formed in connection with the ring engaging groove 11, and the front and rear sides of the inclined protrusion 16 thus formed may be formed of inclined surfaces 24a and 24b, respectively. .

Accordingly, the front inclined surface 24a of the inclined protrusion 16 enters the inside of the socket 10 when the plug 12 is fastened, and can be opened while pushing the stop ring 13, in addition to this When the plug 12 is separated, the rear inclined surface 24b comes out to the outside of the socket 10 and can be opened while pushing the stop ring 13.

In addition, the one-touch high-voltage connector includes a stop ring 13 as a means for maintaining the fastened state of the socket 10 and the plug 12.

The stop ring 13 is a circular ring shape with one cut off, and is installed in the ring avoidance groove 20 formed on the inner circumferential surface of the socket 10, and the ring of the plug 12 is inserted into the socket 10. The plug 12 is locked or unlocked on the socket 10 side while being jammed or separated from the groove 11.

For example, when the plug 12 enters the inside of the socket 10, the stop ring 13 moves outward in the radial direction by the front inclined surface 24a on the inclined protrusion 16 of the plug 12. When the plug 12 continues to enter, the stop ring 13 goes over the inclined protrusion 16 and is restored to its own elasticity, and the ring engaging groove in the plug 12 It is seated in (11) to hang the plug (12).

That is, the plug 12 can maintain a fastened state with the socket 10 side by the locking action of the stop ring 13.

At this time, the stop ring 13 can be avoided into the ring avoidance groove 20 of the socket 10 when it is pushed and opened by the inclined protrusion 16.

Conversely, when the plug 12 is removed to the outside of the socket 10, the stop ring 13 is pushed outward in the radial direction by the rear inclined surface 24b on the inclined protrusion 16 of the plug 12. When the plug 12 is pulled out continuously, the stop ring 13 at this time goes over the inclined protrusion 16, and eventually the plug 12 can be separated from the socket 10. There will be.

Even at this time, the stop ring 13 can be avoided into the ring avoidance groove 20 of the socket 10 when it is pushed out and opened by the inclined protrusion 16.

In addition, the one-touch high-voltage connector includes an open bushing 14 as a means for restricting the movement of the stop ring 13, that is, the movement to the outside.

The open bushing 14 is a bushing having a protrusion 25a formed along the outer circumference of the front end, and is fitted in a coaxial structure to the inner circumferential surface of the distal end of the socket 10 through the rear end and is freely movable in and out of the axial direction. It is installed as.

When the open bushing 14 installed in this way is completely inserted into the interior of the socket 10, that is, when the protrusion 25a at the tip end is inserted to the position where it is caught by the bushing latch 19 in the socket 10 , The rear end of the open bushing 14 comes into contact with the stop ring 13, and in this state, the open bushing 14 can hold the stop ring 13 so that it cannot be moved outward.

The open bushing 14 can be freely moved within the gap between the open nut 15 side and the stop ring 13 side without being removed to the outside by interference by the open nut 15 to be described later.

That is, the open bushing 14 is caught by the protrusion 25b formed on the open nut 15 and does not fall outward, and the gap formed by the open nut 15 protruding outward as much as possible is It can be moved freely within the allowable range.

In addition, the one-touch high-voltage connector includes an open nut 15 as a means for preventing the movement of the open bushing 14 to the outside by pushing the open bushing 14 inward.

The open nut 15 is a circular tubular shape having a protrusion 25b formed along the inner circumferential surface of the distal end, and is fitted in a coaxial structure to the outer circumferential surface of the distal end of the socket 10 while being able to move freely in and out of the axial direction. It is installed as.

Accordingly, when the user pushes and presses the open nut 15 in the inward direction, that is, toward the rear end of the socket 10, the protrusion 25b of the open nut 15 at this time is at the front end of the open bushing 14. In close contact, and at the same time, the rear end of the open bushing 14 is in close contact with the stop ring 13 to fix the stop ring 13, so that the stop ring 13 at this time cannot move to the outside and the plug 12 It is pushed by the inclined protrusion 16 of the so that it can be opened in place.

In addition, a ring receiving groove 26 is formed along the inner circumferential surface of the rear end of the open nut 15, and a sleeve stop ring 17 to be described later can be located in the ring receiving groove 26 at this time. , Since the sleeve stop ring 17 positioned in this way is hung on the wall surface of the ring receiving groove 26, the open nut 15 can be prevented from being completely removed from the socket 10 side.

In addition, the one-touch high-pressure connector includes a sleeve stop ring 17 as a means for preventing the open nut 15 from being separated.

The sleeve stop ring 17 is a circular ring shape with one cut off, and is installed in the ring seating groove 18 formed on the outer circumferential surface of the socket 10, and a ring formed on the inner circumferential surface of the open nut 15 As it is located in the receiving groove 26, when the open nut 15 moves outward to some extent, it serves to hold it so that it cannot be moved any more.

For example, the sleeve stop ring 17 in the state in which the open nut 15 is moved to the outermost side is caught between the rear wall surface of the ring receiving groove 26 and the front wall surface of the ring seating groove 18. Accordingly, since the open nut 15 is no longer moved outward due to the engaging action of the sleeve stop ring 17, it is not separated from the socket 10 side.

Therefore, looking at the state of use of the one-touch high-voltage connector configured as described above is as follows.

5A to 5C are cross-sectional views illustrating a separation process of the one-touch high-voltage connector according to an embodiment of the present invention.

5A to 5C, when the plug 12 is fastened to the socket 10, when the tip of the plug 12 is inserted into the socket 10, the inclination of the plug 12 The type protrusion 16 enters while spreading the stop ring 13, and after the inclined protrusion 16 of the stop ring 13 has passed, it is restored again and the ring engaging groove 11 of the plug 12 Since it is hung inside, the fastening between the socket 10 and the plug 12 is completed.

In the state where the connection between the socket 10 and the plug 12 is completed in this way, when the plug 12 is pulled from the socket 10 side, the plug 12 slightly moves to the outside and the plug 12 The stop ring 13 is also moved to the outside by the inclined protrusion 16 of the, as a result, the stop ring 13 at the position of the ring avoidance groove 20 is moved to the position of the ring engaging groove 21. Therefore, the stop ring 13 at the position of the ring engaging groove 21 does not open up no matter how wide open the inclined protrusion 16 is, and is in a tightly fitted state, so that the plug 12 does not come out.

On the other hand, in the case of separating the plug 12 from the socket 10, when the user holds the open nut 15 by hand and presses it toward the rear end of the socket, the open nut 15 moves and the open bushing through the protrusion 25b The protrusion (25a) of (14) is pressed, and thus the open bushing (14) moves to the inside of the socket and holds the stop ring (13) from moving through its rear end, and as a result, the stop ring (13) becomes the ring It adheres to the position in the avoidance groove (20).

In this state, when the plug 12 is pulled, the inclined protrusion 16 in the plug 12 opens the stop ring 13, and at the same time, the stop ring 13 is formed in the ring avoidance groove 20. ), and thus the inclined protrusion 16 of the plug 12 is removed from the stop ring 13 and the plug 12 is removed from the socket 10 side, so that the plug 12 Can be easily removed from the socket (10).

As described above, in the present invention, when connecting the hydraulic hose or the coolant hose of the mold apparatus with a connector, a one-touch method of locking or unlocking the socket side and the plug side by using a stop ring having a characteristic that is extended or restored from the inside of the socket. By providing a high-voltage connector of the connector, it is very easy to connect and disconnect the connector, and it is possible to secure a stable connection state of the connector, so that it can be usefully used in high-pressure conditions, and the connector's volume can be reduced, resulting in a smaller connector. You can plan.

10: socket
11: ring locking groove
12: plug
13: stop ring
14: open bushing
15: open nut
16: inclined protrusion
17: sleeve stop ring
18: ring seating groove
19: bushing locking jaw
20: ring avoidance groove
21: ring locking groove
22: O-ring
23: wedge-shaped locking portion
24a, 24b: slope
25a,25b: protrusion
26: ring receiving groove

Claims (4)

Socket 10 installed in a fastening structure on the side of the facility;
A plug 12 that can be fastened and detached from the socket 10 side while having the ring engaging groove 11 at the front end and connected to the hose at the rear end thereof;
A stop ring 13 installed on the inner circumferential surface of the socket 10 to lock or unlock the plug 12 side while being caught or separated from the ring locking groove 11;
An open bushing 14 installed on an inner circumferential surface of the front end portion of the socket 10 to be movable inward and outward and to restrain the movement of the stop ring 13 outward;
An open nut 15 installed on the outer circumferential surface of the front end of the socket 10, movable inward and outward, and serving to push the open bushing 14 inward;
Including,
The inner circumferential surface of the front end of the socket 10 is formed along the inner circumference of the inner circumference of the open bushing 14 to prevent further entry of the open bushing 14, and the inner circumferential surface of the distal end of the socket 10 The ring avoiding groove 20 and the ring catching groove 21 are connected to each other at an inner position adjacent to the position where the bushing catching protrusion 19 is formed, and the ring avoiding groove 20 and the ring catching groove 21 are The ring avoiding groove 20 has an inner diameter capable of accommodating the expanding stop ring 13, and the ring engaging groove 21 is a ring avoiding groove 20. By being made with a relatively small inner diameter compared to, as the ring avoiding groove 20 and the ring locking groove 21 have an inner diameter difference between each other, the stop ring 13 is located at the position of the ring avoiding groove 20 In this case, when the stop ring 13, which is spread by the inclined protrusion 16 of the plug 12, expands and enters the inside of the ring avoidance groove 20, the plug 12 can come out from the socket 10 side. In contrast, when the stop ring 13 is in the position of the ring engaging groove 21, even if the inclined protrusion 16 of the plug 12 tries to open the stop ring 13, the ring engaging groove 21 The plug 21 cannot be pulled out from the socket 10 side because it is blocked and does not expand to a certain extent.
On the outer circumferential surface of the tip of the plug 12, a ring engaging groove 11 is formed along the circumference of the outer circumferential surface, and a stop ring 13 is inserted into the ring engaging groove 11 to be hooked, so that the plug 12 is in a locked state. It can be fastened to the socket 10 side while maintaining, and an inclined protrusion 16 at a position adjacent to the position where the ring engaging groove 11 is formed on the outer circumferential surface of the front end of the socket 10 is located around the outer circumferential surface. It is formed along the way, and the inclined protrusion 16 serves to open the stop ring 13 by pushing it outward in the radial direction,
The stop ring 13 is a circular ring shape with one cut off, and is installed in the ring avoidance groove 20 formed on the inner circumferential surface of the socket 10, and the ring of the plug 12 is inserted into the socket 10. While being caught or separated from the groove 11, it serves to lock or unlock the plug 12 to the socket 10 side, but when the plug 12 enters the socket 10, the plug 12 The stop ring 13 is pushed outward in the radial direction by the front inclined surface 24a on the inclined protrusion 16 of the stop ring 13, and when the plug 12 continues to enter, the stop ring 13 at this time is As it goes over the inclined protrusion 16 and is restored to its own elasticity, it is seated in the ring engaging groove 11 in the plug 12 to hang the plug 12, and the stop ring 13 is inclined. When it is pushed out and opened by the protrusion 16, it can be avoided into the ring avoidance groove 20 of the socket 10, and when the plug 12 is separated out of the socket 10, the plug 12 The stop ring 13 is pushed outward in the radial direction by the inclined surface 24b on the rear side of the inclined protrusion 16 and is opened, and if the plug 12 is pulled out continuously, the stop ring 13 at this time Is passed over the inclined protrusion 16, and eventually the plug 12 can be separated from the socket 10, and when the stop ring 13 is pushed out by the inclined protrusion 16 One-touch high-pressure connector, characterized in that it can be avoided into the ring avoidance groove (20) of the socket (10).
delete The method according to claim 1,
One-touch high pressure connector, characterized in that it further comprises a sleeve stop ring (17) that prevents separation of the open nut (15) while being interposed between the outer peripheral surface of the front end of the socket (10) and the inner peripheral surface of the rear end of the open nut (15).
delete

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