JPH0680096U - Mounting structure for embedded fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a mounting structure for an embedded joint that allows easy mounting and removal of the embedded joint from fluid devices without using a tool. A joint main body 2 into which a tube can be easily attached / detached is inserted into a channel opening hole 10 formed in an outer wall surface 1a of a fluid device 1, and the outer wall surface 1a is attached to a contact surface 20 provided in the joint main body 2. The peripheral portion of the cutout portion 30 of the holding plate 3 attached to the above is abutted, and in the above state, the two locking arms 31 provided on the holding plate 3 are provided with a pair of back faces adjacent to the outer wall surface 1a. The surfaces 1b and 1b are engaged with and disengageable from each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for an embedded joint.

[0002]

[Prior art]

 The embedded joint is used, for example, in a manifold M for a solenoid valve D, as shown in FIG. As shown in FIGS. 8 and 9, the embedded joint is formed by forming a circumferential groove 91 on the outer peripheral surface of a substantially cylindrical joint main body 90, and when mounted on the manifold M, it is provided on the side wall of the manifold M. After being inserted into the open hole H, a substantially U-shaped locking tool 92 is inserted from the lower surface 80 serving as a mounting surface to the fixing portion, and as shown in FIG. 9, the vertical members 92a, 92a of the locking tool 92 are inserted. Are fitted into the circumferential groove 91.

Therefore, in the above-mentioned mounted state, when the fluid pressure acts, the constituent wall of the circumferential groove 91 and the vertical members 92a, 92a are in a locked state, and as a result, the embedded joint is unintentionally disengaged from the manifold M. There is no such thing. However, in this mounting structure of the embedded joint, the locking tool 92 cannot be removed without using a tool because of its structure. In other words, the embedded joint cannot be attached to or removed from the manifold M without using a tool.

[0004]

[Problems to be solved by the device]

 Therefore, it is an object of the present invention to provide a mounting structure for an embedded joint that enables easy mounting and removal of the embedded joint from a fluid device without using a tool.

[0005]

[Means for Solving the Problems]

 The mounting structure of the embedded joint of the present invention is such that the joint main body 2 into which the tube can be easily attached and detached is inserted into the flow passage opening hole 10 formed in the outer wall surface 1a of the fluid device 1, and the contact main body 2 is provided with the contact surface. The peripheral portion of the notch 30 of the holding plate 3 attached to the outer wall surface 1a is abutted on the outer wall 20 and, in the above state, the two engaging arms 31 provided on the holding plate 3 are provided on the outer wall surface 1a. And a pair of back surfaces 1b and 1b adjacent to each other are engaged and disengageable with each other.

[0006]

[Action]

 This device has the following effects. By releasing the engagement between the two locking arms 31 provided on the holding plate 3 and the back facing surfaces 1b, 1b, the holding plate 3 can be separated from the outer wall surface 1a of the fluid device 1. . In this state, the contact surface 20 of the joint main body 2 is not affected by the force from the peripheral portion of the notch 30 of the pressing plate 3, so that the joint main body 2 can be easily removed from the flow passage opening hole 10. You can

On the contrary, when the joint main body 2 is inserted into the flow path opening hole 10 and then both the locking arms 31 and the rear surfaces 1b and 1b are engaged with each other, the pressing plate 3 is attached to the outer wall surface 1a. In the installed state, the peripheral portion of the cutout portion 30 of the pressing plate 3 and the contact surface 20 of the joint main body 2 are in contact with each other, and the joint main body 2 can be attached to the flow path opening hole 10 in a retaining state. . As described above, when the structure of the present invention is adopted, the locking arms 31 of the presser plate 3 can only be engaged / disengaged with the back facing surfaces 1b, 1b, that is, described in the section of the prior art. It is possible to easily attach / detach the embedded joint to / from the fluid device 1 without using a tool like the ones.

[0008]

【Example】

 The configuration of the invention of this application will be described below with reference to the drawings shown as examples. (Embodiment 1) In this embodiment, as shown in FIG. 1 and FIG. 2, the claw portion 32 of the elastic locking arm 31 included in the pressing plate 3 is provided on the back surface 1b of the fluid device 1. The holding plate 3 is detachably attached to the outer wall surface 1a of the fluid device 1 in a manner that the holding plate 3 is engaged with the vertical groove 19 formed in the above. I try not to get out of it carelessly.

As shown in FIG. 3, the joint main body 2 has a ring plate-shaped gripper 22 inserted and fixed in a tubular member 21, and a tube insertion / removal state / tube withdrawal is prevented by pushing and releasing the operation tube 23. It is meant to be a condition. As shown in FIGS. 2 and 3, the tubular member 21 has a small diameter portion 21a having substantially the same diameter as the pushing portion 23a of the operating cylinder 23, and a large diameter portion 21b having a diameter larger than the small diameter portion 21a. The stepped portion of the small diameter portion 21a and the large diameter portion 21b is the contact surface 20.

As shown in FIG. 1 and FIG. 2, the holding plate 3 is set to have the same size as the outer wall surface 1 a of the fluid device 1, and has a small-diameter portion at a position corresponding to the operating cylinder 23 of the joint main body 2. A circular hole 30a (corresponding to the notch 30 described in the column of means) is provided which is slightly larger than the diameter of 21a and slightly smaller than the diameter of the large diameter portion 21b. Further, as shown in the figure, the holding plate 3 is provided with the above-mentioned locking arms 31 extending in the direction perpendicular to the both sides thereof, and at the ends of the locking arms 31, claw portions 32 are provided. There is.

As shown in FIG. 2, a flow passage opening hole 10 having a diameter larger than that of the flow passage 11 is opened in the outer wall surface 1 a of the fluid device 1, and the diameter of the flow passage opening hole 10 is larger than that of the joint main body 2. The diameter is set to be slightly larger than the diameter of the large diameter portion 21b, and the depth thereof is made to match the length of the large diameter portion 21b. In addition, as shown in the figure, a concave surface 12 and a vertical groove 19 are formed in the front area of the back surface 1b, 1b adjacent to the outer wall surface 1a of the fluid device 1, and the vertical groove 19 is formed in the vertical groove 19. When the claw portion 32 of the locking arm 31 is fitted, the outer surface of the locking arm 31 and the back surface 1b are flush with each other. Further, the back surface 1b, 1b is provided with a recessed portion 18 which is continuous with the recessed surface 12 and the vertical groove 19. By utilizing this recessed portion 18, the claw portion 32 can be easily removed from the vertical groove 19. It can be removed.

In this embodiment, the pressing plate 3 and the locking arm 31 are integrally formed of elastic synthetic resin. Since this embodiment has the above-mentioned structure, when the two locking arms 31 provided on the holding plate 3 are elastically deformed to remove the claw portion 32 from the vertical groove 19, the holding plate 3 of the fluid device 1 is removed. The joint main body 2 can be detached from the outer wall surface 1a, and in the state where the presser plate 3 is removed, the force from the peripheral portion of the circular hole 30a of the presser plate 3 does not act on the contact surface 20 of the joint main body 2. It can be easily removed from the flow path opening hole 10.

On the contrary, when the joint main body 2 is inserted into the flow path opening hole 10 and then both the locking arms 31 are elastically deformed and the claw portions 32 are fitted into the vertical grooves 19, as shown in FIG. As described above, the holding plate 3 is attached to the outer wall surface 1a, and the peripheral portion of the circular hole 30a of the holding plate 3 and the contact surface 20 of the joint main body 2 are in contact with each other, so that the joint main body 2 opens the flow path. It can be attached to the hole 10 so as not to be pulled out.

As described above, when the structure of this embodiment is adopted, the embedded joint can be easily attached to and detached from the fluid device. Although it is similar to the above-mentioned embodiment, it is also possible to embed the pressing plate 3 in the outer wall surface 1a as shown in FIG. (Embodiment 2) In this embodiment, as shown in FIG. 5, the claw portion 32 of the locking arm 31 provided in the upper region of the pressing plate 3 is fitted into the vertical groove 19 formed in the back facing surfaces 1b, 1b. At the same time, the lower end of the pressing plate 3 is closely inserted into the pocket 18 provided in the lower part of the outer wall surface 1a, so that the pressing plate 3 can be attached to the outer wall surface 1a of the fluid device 1 at a proper position. There is.

Therefore, in the holding plate 3 of this embodiment, as shown in FIG. 6, a slit 30b extending upward from the lower end is provided, and circular arc portions are provided on both wall surfaces of the slit 30b. In the state where 3 is attached to the outer wall surface 1a, the peripheral portion of the arcuate portion of the pressing plate 3 comes into contact with the contact surface 20. Further, as shown in the figure, the holding plate 3 is provided with an engaging hole 33 above the end portion of the slit 30b, and a hook or a tip of a driver is hooked into the engaging hole 33 to hold the pressing plate. The plate 3 can be removed from the fluid device 1 by sliding it upward.

Since this embodiment has the above-mentioned structure, when the pressing plate 3 is pushed down from the state shown in FIG. 6 to the state shown in FIG. 7, as shown in FIG. Is in the state of being inserted into the pocket 18, and the claw portion 32 of the locking arm 31 is in the state of being fitted in the vertical groove 19, and the peripheral portion of the arcuate portion of the holding plate 3 is in contact with the contact surface 20. That is, the joint main body 2 can be attached to the flow path opening hole 10 in a state of being prevented from coming off.

On the contrary, the pressing plate 3 can be detached from the fluid device 1 simply by inserting the nail or the tip of the driver into the engaging hole 33 and pulling it up. The cutout portion 30 in the above embodiment is not limited to the circular hole 30a and the slit 30b, and the whole or part of the periphery of the cutout portion 30 in the holding plate 3 can be engaged with the contact surface 20. Good.

[0018]

[Effect of device]

 Since the present invention has the configuration as described above, it has the following effects. From the contents described in the action column, it was possible to provide a mounting structure for an embedded joint that enables easy mounting / removal of the embedded joint to / from a fluid device without using a tool.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mounting structure for an embedded joint according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing the mounting structure.

FIG. 3 is a sectional view of a joint main body used for the mounting structure of the embedded joint.

FIG. 4 is a perspective view showing the structure of the embedded joint according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a mounting structure of an embedded joint according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which a holding plate is removed from a fluid device in the structure of the second embodiment.

FIG. 7 is a perspective view of the structure of the second embodiment during the process of attaching the holding plate to the fluid device at an appropriate position.

FIG. 8 is a view showing a joint main body, a locking tool, and a flow path opening hole used in a conventional embedded joint mounting structure.

FIG. 9 is a cross-sectional view showing the mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid equipment 1a Outer wall surface 1b Back surface 2 Joint main body 3 Holding plate 10 Flow path opening hole 20 Contact surface 30 Notch portion 31 Locking arm

Claims (1)

[Scope of utility model registration request] 1. A joint main body (2) capable of easily attaching and detaching a tube is inserted into a flow path opening hole (10) formed in an outer wall surface (1a) of a fluid device (1), and the joint main body (2) is inserted into the joint main body (2). The peripheral surface of the notch (30) of the holding plate (3) attached to the outer wall surface (1a) is abutted against the provided contact surface (20), and in the above state, the holding plate (3) is ), The two engaging arms (31) are engaged with and disengageable from the outer wall surface (1a) and a pair of rearward facing surfaces (1b) and (1b), respectively. Mounting structure for embedded joints characterized by