JPH0676780U - Mounting structure for embedded fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a mounting structure for an embedded joint in which the embedded joint cannot be replaced unless the fluid device is removed from the fixed portion. [Structure] A joint main body 2 into which a tube can be easily attached and detached 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 pulled out from the fluid device 1 by a locking tool 3. It is a mounting structure of an embedded joint that is held in a stopped state, in which the joint main body (2) has a contact surface (20) projecting outward, while the locking member (3) is attached by the mounting means (4) to the outside. It has a holding plate 30 which is detachably attached to the wall surface 1a and a notch portion 31 formed in the holding plate 30, and when the holding plate 30 is attached to the fluid device 1 by the attaching means 4, the holding plate is provided. The peripheral portion of the notch 31 in 30 and the contact surface 20 of the joint main body 2 are in an engaged state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

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

[0002]

[Prior art]

 As the embedded joint, for example, as shown in FIG. 7, the manifold M 1 for the solenoid valve D is used. As shown in FIGS. 7 and 8, the embedded joint is formed by forming a peripheral groove 91 on the outer peripheral surface of a substantially cylindrical joint main body 90. When the joint is attached to the manifold M, the embedded joint 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. 7, 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, the mounting of this embedded joint is performed by inserting the locking tool 92 from the lower surface 80 which is the mounting surface to the fixed portion. Therefore, the mounting / removal of the joint to / from the manifold M is performed. Must be removed from the fixed part. That is, with this mounting structure of the embedded joint, the situation in which the manifold M must be temporarily removed from the fixed portion when exchanging occurs.

[0004]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to provide a mounting structure for an embedded joint in which the situation in which the embedded joint cannot be replaced unless the fluid device is removed from the fixed portion.

[0005]

Means for Solving the Problem The present invention inserts a joint main body 2 into which a tube can be easily attached and detached into a flow passage opening hole 10 formed in an outer wall surface 1a of a fluid device 1, In the mounting structure of the embedded joint of the type in which the joint main body 2 is held in the retaining state by the locking tool 3, the joint main body 2 has a contact surface 20 that projects outward, and the other is The tool 3 has a holding plate 30 which is detachably attached to the outer wall surface 1a by the attaching means 4 and a notch 31 formed in the holding plate 30, and the holding plate 30 is attached to the fluid device by the attaching means 4. In the state of being attached to No. 1, the peripheral portion of the cutout portion 31 of the holding plate 30 and the contact surface 20 of the joint main body 2 are in the engaged state.

[0006]

[Action]

 This device has the following effects. In the structure of the present invention, since the locking tool 3 is detachably mounted on the mounting surface (outer wall surface 1a) of the tube in the fluid device 1, all wall surfaces other than the outer wall surface 1a are mounted on the fixed portion. Even if it becomes a surface, the locking tool 3 can be removed without removing the fluid device 1 from the fixed portion. That is, in this structure, the situation in which the embedded joint cannot be replaced unless the fluid device is removed from the fixed portion does not occur.

Further, the joint main body 2 is prevented from being unintentionally detached because the peripheral portion of the notch 31 of the holding plate 30 and the contact surface 20 of the joint main body 2 are brought into a retaining state.

[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 FIGS. 1 and 2, the joint main body 2 is pulled out by a holding plate 30 which is screwed to an outer wall surface 1a of a fluid device 1 by a screw 40 serving as a mounting means 4. It is supposed to be held in a stopped state.

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. 2, the outer wall surface 1a of the fluid device 1 is provided with a flow passage opening hole 10 formed by forming an opening portion of the flow passage 11 having a diameter larger than this. The hole diameter is set to be slightly larger than the diameter of the large diameter portion 21b of the joint main body 2 and the depth thereof is made to match the length of the large diameter portion 21b. As shown in FIG. 1 and FIG. 2, the holding plate 30 is set to have the same shape as the outer wall surface 1a of the fluid device 1, and has a diameter smaller than that of the small diameter portion 21a at a position corresponding to the operation tube 23 of the joint main body 2. A circular hole 31a (corresponding to the notch 31 described in the column of means) is provided, which is slightly larger than the diameter of the large-diameter portion 21b and has insertion holes for inserting screws at the four corners. is there.

Since the mounting structure of the embedded joint of this embodiment is configured as described above, the joint main body 2 is inserted into the flow path opening hole 10 and the holding plate 30 is attached to the outer wall surface 1 a of the fluid device 1. In this state, as shown in FIG. 3, the contact surface 20 of the joint main body 2 and the peripheral portion forming the circular hole 31a of the holding plate 30 are in contact with each other, and the fluid main body 1 of the joint main body 2 is inadvertently contacted. Withdrawal is being blocked. When the joint main body 2 is replaced, the pressing plate 30 can be removed and attached to the outer wall surface 1a which is the tube attachment surface from the front side. Therefore, the situation in which the embedded joint cannot be replaced unless the fluid device 1 is removed from the fixed portion does not occur. (Embodiment 2) This embodiment basically has the same structure as that of the above-mentioned embodiment 1, but the mounting means 4 has the following structure to facilitate the attachment / detachment of the holding plate 30 to / from the outer wall surface 1a. ing.

That is, as shown in FIG. 4, the mounting means 4 of this embodiment includes a pair of elastic locking claws 32 provided on the contact surface side of the holding plate 30 with the outer wall surface 1 a, and the holding plate 30. Window 33 for removal provided in the vicinity of the elastic locking claw 32, the removal hole 18 provided on the outer wall surface 1a of the fluid device 1, and the engagement hole provided on the outer wall surface 1a of the fluid device 1. It consists of a stop claw 17 and a locking piece 16 provided between the locking claw 17 and the removal hole 18, and in the state where the pressing plate 30 is attached to the outer wall surface 1a, the solid line in FIG. As shown, the locking claw 32 and the locking piece 16 are in the engaged state.

When the pressing plate 30 is removed from the outer wall surface 1 a, a jig J is inserted from the removal window 33 as shown by the chain double-dashed line in FIG. 5 to engage the locking claw 32 and the locking piece 16. If it is unwound, it can be removed from the fluid device 1 only by pulling the holding plate 30 forward. (Third Embodiment) This embodiment basically has the same structure as that of the second embodiment, but the mounting means 4 has the structure described below to facilitate the attachment / detachment of the holding plate 30 to / from the outer wall surface 1a. ing.

That is, in this embodiment, as shown in FIG. 6, the attachment means 4 includes a headed pin 42, a locking sleeve 43 that is fitted onto the pin portion 42a of the headed pin 42, and a fluid body. It is composed of a space portion 19 opened to the outer wall surface 1a of the device 1 and an insertion hole 34 formed in the holding plate 30. As shown in the figure, the locking sleeve 43 includes a tubular portion 43a, a flange portion 43b provided at one end of the tubular portion 43a, and a cross-section chevron provided at the other end of the tubular portion 43a. And a plurality of slits (not shown) for making the expansion / contraction diameter of the engaging portion 43c and the vicinity thereof possible.

As shown in FIG. 6, the headed pin 42 has a pin portion 42 a whose diameter is substantially equal to the inner diameter of the locking sleeve 43, whereby the pin portion 42 is fixed to the locking sleeve 43. It can be pressed in and out with a small force. As shown in FIG. 6, the space portion 19 has such a size that the engaging portion 43c of the sleeve 43 can be accommodated with a sufficient margin, and the diameter of the opening hole 19a to the outer wall surface 1a is set to the above-mentioned cylinder. It is set to be slightly larger than the outer diameter of the middle portion of the portion 43a.

The insertion hole 34 formed in the holding plate 30 has the same size as the diameter of the opening hole 19a, as shown in FIG. Since the mounting means 4 is configured as described above, the holding plate 30 can be mounted on the outer wall surface 1a of the fluid device 1 by the following operation. First, the holding plate 30 is fitted to the outer wall surface 1a of the fluid device 1 so that the insertion hole 34 and the opening hole 19a are aligned with each other.

Next, the locking sleeve 43 is pushed from the insertion hole 34 toward the space portion 19, and then the pin portion 42 a of the headed pin 42 is press-fitted. Then, as shown in FIG. 6, the engagement portion 43c and the front wall forming the space portion 19 are in a locked state, and the holding plate 30 is not inadvertently removed from the outer wall surface 1a of the fluid device 1. On the contrary, when the pressing plate 30 is removed from the outer wall surface 1a of the fluid device 1, the headed pin 42 is forcibly pulled out from the locking sleeve 43, and then the locking sleeve 43 is pulled out from the space portion 19. Good.

The cutout portion 31 is not limited to the circular hole 31a, and may be any one as long as the whole or part of the periphery of the cutout portion 31 engages with the contact surface 20. Further, in the third embodiment, the headed pin 42 is replaced with a headed bolt, and the inner peripheral surface portion corresponding to the collar portion 43b of the locking sleeve 43 and its vicinity is screwed with the headed bolt. A female screw portion (not limited to this, it may be a plurality of protrusions that fit into the screw groove of the headed bolt) may be formed.

[0019]

EFFECTS OF THE INVENTION Since the present invention has the structure as described above, it has the following effects. From the contents described in the action column, it was possible to provide the mounting structure of the embedded joint in which the situation where the embedded joint could not be replaced unless the fluid device was removed from the fixed part occurred.

[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 a mounting means of an embedded joint according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view for explaining a method of attaching and detaching the attachment means.

FIG. 6 is a perspective view showing a mounting means of an embedded joint according to a third embodiment of the present invention.

FIG. 7 is a view showing a joint main body, a locking tool, and a flow path opening hole used in the conventional mounting structure for the embedded joint.

FIG. 8 is a cross-sectional view showing the mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid equipment 1a Outer wall surface 2 Joint main body 3 Locking tool 4 Attachment means 10 Flow path opening hole 20 Contact surface 30 Holding plate 31 Notch

Claims (1)

[Scope of utility model registration request] 1. A fitting main body (2) which allows a tube to be easily attached and detached is inserted into a flow path opening hole (10) formed in an outer wall surface (1a) of a fluid device (1), and the fluid device (1) is provided with the joint main body (2). On the other hand, it is a mounting structure of an embedded joint of a type in which the joint main body (2) is held in a retaining state by a locking tool (3), and the joint main body (2) has an abutting surface (2
0) on the other hand, the locking tool (3) is formed on the holding plate (30) removably attached to the outer wall surface (1a) by the attaching means (4) and the holding plate (30). And the cutout portion (31), the cutout portion (3) in the presser plate (30) is attached to the fluid device 1 by the attachment means (4).
A mounting structure for an embedded joint, characterized in that a peripheral portion of 1) and an abutting surface (20) of the joint main body (2) are in an engaged state.