KR970005329Y1 - Connection device for pipe line - Google Patents

Abstract

None.

Description

Piping connection device for hydraulic equipment

1 is a cross-sectional view showing a case in which the connecting device, which is an embodiment of the present invention, is installed in an electronic pilot switch valve

2 is a perspective view of FIG. 1

3 is a perspective view showing an exploded view of FIG.

4 is an exploded perspective view of a pipe connecting member and a connecting connecting member

* Explanation of symbols for main parts of the drawings

1: Fluid pressure device (electronic pilot type switching valve)

40: piping 41: main body

42: connection member for coupling 43: pipe connection member

45: connection port 51: cutting hole

54: projection 61: coupling groove

The present invention relates to a pipe connecting device used to connect a pipe such as a flexible hose to a switching valve for controlling a pressure fluid such as compressed air or a manifold or other fluid pressure device.

Pipes, such as flexible hoses for introducing fluid, are connected to the switching valves, manifolds, and other fluid pressure devices that control pressure fluids such as compressed air. Generally, such a pipe connection is provided by connecting a screw with a cutting member to the end of the pipe, screwing the connecting member into a port, or simply inserting the pipe end into the connection port. One-touch pipe connecting member can be connected to the port, and the end of the pipe is connected to the pipe connecting member. It may not be installed. This problem is solved by preparing various kinds of connecting members or pipe connecting members according to the size and shape of all ports.However, preparing various kinds of connecting members or pipe connecting members is very difficult physically. Not only is this complicated, the cost required for design, manufacturing, and inventory management is also increased.

An object of the present invention is to provide a pipe connecting device that can easily and reliably connect a pipe to various fluid pressure equipments having different sizes and shapes of ports.

In order to achieve the above object, the present invention provides a main body, which is installed in a detachable state on a free surface of a port of a fluid pressure device, a pipe connecting member for connecting a pipe such as a flexible hose, and the pipe connecting member. A port of a fluid pressure device, comprising: a connecting connection member for attaching and detaching freely to a main body supported in a state of being installed in the main body, wherein the pipe connecting member can be fastened to the main body. It has the same number of connection ports as, and when the main body is installed in the hydraulic device, the connection port is connected to each port of the fluid pressure device individually connected to each other, the coupling connecting member is a pipe It holds a cutting hole formed in the same number of U-shape as the above-mentioned connection port for supporting the connecting member in a fastened state, and connects the pipe to the cutting hole. When the member is fastened, the edge of the cutting hole is caught in the joining groove around the pipe connecting member, and thus is configured to support each pipe connecting member. There is provided a pipe connecting device, which is composed of a one-touch pipe connecting member that can connect the pipe by simply inserting the plug into the connection port.

In a preferred embodiment of the present invention, the coupling connecting member is formed by cutting two cutting holes from both front and rear edges, so that the coupling connecting member is formed in an S shape when viewed from the rear surface.

It is preferable that at least one protrusion is formed at a position corresponding to the opening of the cutting hole of the coupling connecting member around the attachment hole of the connecting member on the upper surface of the main body to contact the side surface of the pipe connecting member. .

EXAMPLE

1 to 4, reference numeral 1 denotes an electromagnetic pilot switching valve which is an example of a fluid pressure device, and reference numeral 2 denotes a pipe connecting device 2 provided in the switching valve 1. It is displaying.

The switching valve 1 includes a main valve unit 10 for controlling a main fluid such as compressed air and an electronically operated pilot valve unit for controlling a pilot fluid for switching the main valve unit 10. 11).

The valve body 15 having a substantially rectangular parallelepiped shape in the main valve unit 10 has a circular input port P and discharge ports EA, EB, which are open from the lower surface thereof, and a flat upper surface. An open rectangular output port (A) or (B) is provided, and at the same time, the port has a valve hole (16) through which the port is connected, and a spool valve body (17) into the valve hole (16). Is inserted to move freely along the axial direction. At both ends of the valve body 15 in the axial direction, end plates 18 and 19 having a rectangular parallelepiped shape are provided, and the end plates 18 and 19 face the valve holes 16. The small diameter piston chamber 20 and the large diameter piston chamber 21 are formed, and the piston chambers 20 and 21 have small diameter pistons 22 and large diameter pistons 23 having different hydraulic pressure areas. It is provided so that the valve body 17 can move freely along the axial direction.

The small diameter piston chamber 20 is always connected to the input port P by the pilot flow path 25, and the large diameter piston chamber 21 is connected to the pilot flow paths 26a, 26b, 26c, and 26d. It is connected to the input port (P) through the manual operation mechanism 28 and the above-described pilot valve unit 11 by means of the pilot valve unit 11 is operated by the input port (P) to the large diameter piston chamber 21 The valve body 17 is driven to the left and right by supplying or discharging the pilot fluid. As shown in the lower half of FIG. 1, when the valve body 17 moves to the right, the ports P, (A), and (B) and (EB) are connected to each other, and as shown in the upper half of FIG. When the main body 17 moves to the left side, the ports P and B and A and EA are connected to each other.

In addition, the manual operation mechanism 28 pushes the operation shaft 29 to directly connect the pilot flow paths 26a and 26d to connect the large diameter piston chamber 21 to the input port P. It is.

The pipe connecting device 2 attached to the upper surface of the above-mentioned switching valve 1 in a state where it can be freely attached or detached is formed of a synthetic resin in the output ports A and B of the upper surface of the switching valve 1. Connection for connecting the pipe 40 such as a flexible hose made of rubber or the like to install the main body 41 and the pipe connecting member 43 fixed to the switching valve 1 to the main body 41. The pipe connection member 43 for connecting the member 42 and the pipe 40 is comprised.

The main body 41 has a plurality of bolting holes 46 for fastening the same number of connection ports 45 and the malt 47 as the output ports A and B, and the main body 41. Is installed to penetrate up and down, and at the same time, the bottom surface of the main body 41 is provided with a ring-shaped sealing member 48 surrounding each of the connection ports 45, and the main body 41 is a bolt ( When it is fixed to the upper surface of the selector valve 1 by means of 47, the two connecting ports 45 and 45 are connected to the output ports A and B, respectively. The upper half of each connection port 45 is an attachment hole 45a of the connection member whose hole diameter is enlarged, and the lower end of the pipe connection member 43 is sealed in the attachment hole 45a of this connection member. The attachment part 43a provided with the ring 50 is fitted.

The coupling connecting member 42 includes two U-shaped cut holes 51 and 51 for inserting the pipe connecting member 43 into a thin plate having an approximately the same shape as the main body 41 described above. Formed from the front and rear edges to form an S-shape in plan view, and when the pipe connecting member 43 is horizontally moved from the opening 51a into the cutting hole 51, The edge of the cutting hole 51 is engaged while being fitted in the coupling groove 61 formed on the outer circumference of the pipe connecting member 43. Therefore, when the coupling connecting member 42 is fixed to the upper surface of the main body 41, each pipe connecting member 43 connects the lower attachment part 43a by the coupling connecting member 42. It is supported by the said main body 41 in the state inserted in the member attachment hole part 45a. The fixing of the coupling connecting member 42 to the main body 41 is fixed by the above-described bolts 47 using the mounting holes 52 and 52 formed at both ends in the longitudinal direction.

The pipe connecting member 43 supported by the main body 41 removes the bolt 47, separates the coupling connecting member 42 from the main body 41, and laterally moves the cutting connection 51 and (51). ), It can be easily detached from the main body 41 and the coupling connecting member 42.

Positions corresponding to the cutting holes 51 of the coupling connecting member 42 around the connection port 45 on the upper surface of the main body 41 and the openings 51a and 51a of the 51. The plurality of projections 54 having an arc-shaped inner surface are formed at appropriate intervals, and the projections 54 are in contact with the side surfaces of the pipe connecting members 43 provided on the main body 41. As a result, even when the coupling connecting member 42 is not engaged with the pipe connecting member 43 at the position of the opening portion 51a, the pipe connecting member 43 can be stably installed in the main body 41. . One or more of these projections 54 may be suitable.

In addition, the pipe connecting member 43 is composed of a one-touch pipe connecting member that can connect the pipe 40 by simply inserting the end of the pipe 40 into the connection port 43b. A metal elastic chuck coupled to the outer surface of the pipe 40 and supported so that the pipe 40 does not fall out of the inside of the outer cylinder 60 of the synthetic resin material having the attachment portion 43a and the coupling groove 61. The member 62 and the release member 63 of the synthetic resin material which isolate | separate the said chuck member 62 which supported the piping 40 at the time of removing the piping 40 are provided.

The chuck member 62 having a cylindrical shape is supported in the outer cylinder 60 by a cylindrical guide 64 made of synthetic resin, and has a plurality of cutouts at the lower edge thereof except for a portion having a thick upper end. The edge 66 is thus partitioned into a plurality of side wall portions 62a which can be freely enlarged, and supports the pipe 40 at the tip of the bent portion 62b bent to the inner axis of the lower end of each side wall portion 62a. ) Is formed.

The side wall portion 62a of the chuck member 62 is pressed inward from the outside by the elastic collet 67. Moreover, the sealing member 68 which is in contact with the outer periphery of the piping 40 is provided in the lower part of the collet 67 mentioned above.

The release member 63 has a cylindrical shape, and has a crimp portion 63a contacting the bent portion 62b of the chuck member 62 at the lower end thereof. When the release member 63 is pushed in, The crimping portion 63a contacts the bent portion 62b and pushes the bent portion 62b outward to widen to remove the edge 66 supporting the pipe 40.

When the end of the pipe 40 is inserted into the connecting port 43b of the pipe connecting member 43, the edge 66 of the lower end of the chuck member 62 supports the outer circumference of the pipe 40 so that the pipe 40 ) Is connected.

When the connected pipe 40 is separated from the pipe connecting member 43, the release member 63 is pushed in and bending of each side wall portion 62a of the chuck member 62 by the crimping portion 63a at the lower end thereof. The part 62b is pushed outward to widen to remove the edge 66 supporting the pipe 40 and to pull out the pipe 40 in that state.

As described above, according to the present invention, the size of the connecting portion 43a of the pipe connecting member 43 does not coincide with the rectangular port as shown in FIG. 1 by using the pipe connecting device 2 having the above-described configuration. The pipe 40 can be easily and reliably connected to the circular port by the pipe connecting member 43. In addition, when the main body 41 is configured to be commonly installed in other switching valves 1 of different types, the above-described connecting device 2 also applies to other switching valves 1 having different sizes and shapes of ports. ), The pipe 40 can be securely connected. In this case, it is preferable to form the shape and effective open area of the connection type port 45 so as to be suitable for the switching valve having a port having a maximum open diameter and an open area.

In the case of using a pipe connecting member having a different diameter of the connection port 43b or when the pipe connecting member is broken, the bolt 47 is replaced when the pipe connecting member 43 installed in the main body 41 is replaced. It is sufficient to remove and remove the coupling connecting member 42 from the main body 41, and then move the pipe connecting member 43 laterally to remove it from the cutting holes 51 and 51 and install a new pipe connecting member. Therefore, the replacement work can be performed easily and quickly.

This invention is not limited to the structure of the above-mentioned embodiment, of course, can be variously changed within the range which can achieve the objective.

Claims (3)

(Correct) The pipe connecting member 43 for connecting the main body 41 installed in the state which can be detachably attached to the open surface of the port of the fluid pressure apparatus 1, and the piping 40, such as a flexible hose, and The main body 41 comprises a coupling connecting member 42 which can be freely attached to and detached from the main body 41 supporting the pipe connecting member 43 in the state of being installed in the main body 41. There is the same number of connection ports 45 as the ports of the fluid pressure device 1, which can fasten the pipe connecting member 43 described above, and the main body 41 is connected to the fluid pressure device 1. When the connection port 45 is installed, the connection port 45 is connected to each port of the fluid pressure device 1 individually, and the connection connection member 42 is connected to the pipe connection member 43. There is a cutting hole 51 formed in the U-shape of the same number as the connection port for supporting in a state, and connected to the cutting hole 51. When engaging the binding member 43, the edge of the cutting hole 51 is caught in the engaging groove 61 around the tube connecting member 43, thereby supporting each tube connecting member 43 In the pipe connecting member 43, the pipe connecting member 43 is a one-touch pipe connecting member which can connect the pipe by simply inserting the end of the pipe 40 into the connection port 43b. Pipe fittings for fluid pressure equipment. (Correction) The method according to claim 1, wherein the two connecting holes 51 are formed by cutting the two cutting holes 51 from the front and rear edges of the coupling connecting member 42, so as to have an S-shape as viewed from the rear surface. Piping connections to hydraulic equipment. (Correction) The cutting hole 51 of the coupling | bonding connection member 42 around the connection port 45 in the upper surface of the main body 41, the opening part 51a of 51, And at least one projection (54) in contact with the side surface of the pipe connecting member (43) at a position corresponding to the (51a).