JPH0314636Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to hose connection joints, especially rubber or synthetic resin used for piping of vehicles and industrial equipment as supply pipes for various gases and liquids. The invention relates to a so-called eyeglass fitting that is fixed to the end of a manufactured hose.

[Prior Art] Conventionally, this type of hose connection joint, which is called a so-called eyeglass fitting, is generally provided with a sleeve 2 around the outer periphery of the nipple 1 for holding the hose, as shown in FIGS. 7 and 8. A hollow neck part 3 is provided on an extension of the hollow neck part 3, a bolt attachment part 4 is provided at the tip of the hollow neck part 3, and a bolt insertion hole 5 is provided in the bolt attachment part 4, which is orthogonal to the axis of the hollow neck part 3. .

[Problem that the invention attempts to solve]

However, with conventional hose connection joints, when two hose connection joints of the same type are used with their bolt insertion holes overlapping, the position of the joints may shift and fluid leaks, or the installation angle of the two connection joints may have to be adjusted. There was a problem that it required a lot of work.

Therefore, this idea was devised to solve the above problems, and the bolt insertion holes of the two hose connection joints do not shift even when used overlappingly, and the mounting angle can be easily adjusted. Moreover, it is an object of the present invention to provide a hose connection joint that can be used as a single joint like conventional joints.

[Means for solving problems]

The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 6 corresponding to the embodiments. The hose connection joint 10 according to the invention includes a sleeve provided around the nipple, and a sleeve attached to the nipple. A hose connection joint is provided with a hollow neck part and a bolt attachment part orthogonal to the axis of the hollow neck part, and the bolt attachment part has a bolt insertion hole that communicates with the hollow neck part. At least one convex portion and a concave portion into which the convex portion fits are provided on the outer periphery, and the convex portion and the concave portion are provided on a concentric circle with the bolt insertion hole, and are provided outside a diagonal distance of the head of the mounting bolt. It is characterized by this.

[Effect]

The hose connection joint 10 according to the present invention is
Since the configuration is as described above, as shown in FIG.
In the case where the lower surfaces of 4 are stacked facing each other and the mounting bolt 18 is inserted through the upper surface of the bolt mounting part 14 of the joint 10A and is screwed into the threaded part of the hydraulic device 19 to fix the joint, as shown in FIG. 10A, 1
The operation will be described in the case where the 0Bs are overlapped in the same manner as described above and fixed by the mounting bolt 18 and sleeve nut 20 to be used as an intermediate joint.

That is, since the two bolt insertion holes 15 of the hose connection joint 10A and the same type of hose connection joint 10B turned upside down are made to face each other, the protrusions 16 provided on the lower surfaces of the bolt attachment parts 14, 14 facing each other,
16 are recesses 1 each having a corresponding shape.
7 and 17. Therefore, by rotating one joint around the bolt insertion holes 15, 15, the sleeve 12,
Any mounting angle can be easily selected except for the range where the 12 contact each other, and since at least two sets of convex portions 16, 16 and concave portions 17, 17 are fitted, misalignment will not occur. disappears.

Furthermore, although not shown, the hose connection joint 10 according to the present invention can be used as a single joint like a conventional joint by turning it upside down, that is, by inserting the mounting bolt from the bottom surface of the bolt mounting part.

〔Example〕

Examples of the hose connection joint 10 according to this invention will be described below.

FIG. 1 is a front view showing an embodiment of this invention, and FIG. 2 is a longitudinal sectional view of FIG. 1. A sleeve 12 is integrally provided on the outer periphery of the nipple 11, and the nipple 1
1 and the peripheral end of the sleeve 12 are the hoses H to be attached.
Provide a tapered surface to facilitate insertion.
Then, on the extension line of the nipple 11, a hollow neck portion 1 is provided.
3 and a bolt attachment part 1 at the tip.
4 will be provided. By making the inner diameter of the hollow neck portion 13 the same as the inner diameter of the nipple 11, the hollow neck portion 13 can be processed in one drilling step. Next, the bolt attachment part 14 is provided with a bolt insertion hole 15 that extends from the upper surface to the lower surface thereof and is perpendicular to the axis of the hollow neck part 13 . Further, O-ring insertion grooves 21 and 21 are provided concentrically with the bolt insertion hole 15 on the upper and lower surfaces of the bolt mounting portion 14, respectively, and furthermore, the bolt insertion hole 15 is provided near the outer periphery of the lower surface of the bolt mounting portion 14. Eight convex portions 16 and eight concave portions 17 having shapes corresponding to the convex portions 16 are alternately arranged at equal intervals on a concentric circle. In this case, the outer diameter of the O-ring insertion groove 21 is made smaller than the width across flats L of the head of the mounting bolt 18, and the convex portion 16 and recess 17 provided on the lower surface of the bolt mounting portion 14 are formed on the head of the mounting bolt 18. It must be provided outside the diagonal distance M of the section.

As a result, as shown in FIG.
Place the bolt mounting parts 14, 14 with the lower surfaces of the bolt mounting parts 14, 14 facing each other, stack the O-rings 22 in the O-ring insertion grooves 21, 21, and insert the mounting bolt 18 from the upper surface of the bolt mounting part 14 of the hose connection joint 10A. Two hose connection joints 10A and 10B are inserted and fixed to the threaded part of the hydraulic device 19.
can be connected to the hydraulic device 19.

In addition, as shown in FIG. 6, the hose connection joint 10
A, 10B in the same manner as above and tighten the mounting bolts 18.
By fixing it with a sleeve nut 20, it can be used as an intermediate joint for a hose.
In these cases, there is a space between the top surface of the bolt mounting portion 14 of the hose connection joint 10A and the mounting bolt 18, and between the top surface of the bolt mounting portion 14 of the hose connection joint 10B, the hydraulic device 19, and the sleeve nut 20. Fluid leakage is prevented by inserting the O-ring 22 into the O-ring insertion groove 21 and, if necessary, providing a seal plate (not shown) to protect the O-ring 22.

When the two hose connection joints 10A and 10B are overlapped and the joint 10A is fixed as shown in FIG. Expressed in angle, it ranges from 22.5 degrees to 337.5 degrees.
You can select an angle that is a positive multiple of 22.5 degrees. Note that by bending the hollow neck portion 13, the sleeves 12, 12
The above range can be changed from 0 to 360 if the
Can be enlarged at any time.

Further, it is sufficient that at least one of each of the convex portion 16 and the concave portion 17 provided concentrically with the bolt insertion hole 15 near the outer periphery of the lower surface of the bolt attachment portion 14 is provided. The mounting angle is not limited, and any mounting angle can be set by changing the number, shape, and position as necessary. For example, one convex portion 16 and a plurality of concave portions 17 having a shape corresponding to the convex portion 16 may be arranged at equal intervals.

[Effect of idea]

Since the hose connection joint according to the present invention is configured as described above, the two hose connection joints 10A,
Even if the 10B bolt insertion holes 15 and 15 are used overlapping each other, they will not shift, and the mounting angle can be easily adjusted.Furthermore, it can be used as a single joint like a conventional hose connection joint, making it practical. The above effects are great.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the hose connection joint according to the present invention, Fig. 2 is a vertical sectional view of Fig. 1, Fig. 3 is a bottom view of the hose connection joint shown in Fig. 1, and Fig. 4 The figure is a longitudinal cross-sectional view showing the state in which two hose connection joints are overlapped and attached to the device, Fig. 5 is a plan view of the same, and Fig. 6 is a longitudinal cross-section showing the state in which the hose connection joints are overlapped to form an intermediate joint. 7 is a plan view showing the structure of a conventional hose connection joint, and FIG. 8 is a plan view showing the structure of a conventional hose connection joint.
FIG. In the figure, 10 is a hose connection joint according to the present invention, 1
1 is a nipple, 12 is a sleeve, 13 is a hollow neck part, 14 is a bolt attachment part, 15 is a bolt insertion hole,
16 is a convex part, 17 is a concave part, 18 is with a mounting bolt,
19 is a hydraulic system, 20 is a sleeve nut, 21 is an O-ring insertion groove, 22 is an O-ring, L is the width across flats of the mounting bolt head, and M is the diagonal distance of the mounting bolt head.

Claims (1)

[Claims for Utility Model Registration] (1) A sleeve is provided on the outer periphery of the nipple, a hollow neck is provided on an extension of the nipple, and a bolt attachment portion perpendicular to the axis of the hollow neck is provided, and the bolt attachment portion is provided with a hollow neck. In a hose connection joint provided with a bolt insertion hole communicating with the neck, at least one protrusion and a recess into which the protrusion fits are provided on the outer periphery of the lower surface of the bolt attachment part, and the protrusion and the recess are connected to the bolt insertion hole. A hose connection joint characterized by being located on a concentric circle and provided outside the diagonal distance of the head of the mounting bolt. (2) The hose connection joint according to claim 1, wherein a plurality of the grooves are arranged at equal intervals. (3) The hose connection joint according to claim 1, wherein a plurality of the convex portions and concave portions are arranged alternately and at equal intervals.