JP2568470Y2 - Hose fittings - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a hose joint, and relates to a hose joint in which the joint itself has no distinction between male and female.

[0002]

2. Description of the Related Art Conventionally, there are various types of hose joints such as a union joint and a fast pipe joint. In each case, when a male joint is attached to one of the hoses by a male and female hose joint. The other was to attach separate male and female joints to both ends of one hose, such as attaching female joints.

[0003]

However, in the case of such a hose joint having a distinction between male and female, if the arrangement of the male and female is wrong during the connecting operation, the male side or the female side cannot be connected. Therefore, it is necessary to relocate the left and right sides of the hose, which requires a troublesome work. The present invention has been made in view of the above circumstances, and provides a hose joint that does not distinguish between males and females so that the hose can be connected regardless of the lateral direction of the hose when connecting the hose via the joint. The purpose is to:

[0004]

In order to achieve the above-mentioned object, the hose joint of the present invention is provided with a step on the outer periphery on the hose insertion side.
Screw leftward on the hose insertion part where the part is formed and the outer periphery on the joint side
An inner cylinder having a reverse threaded portion cut into
While forming the internal screw to be screwed, and the peripheral edge of the joint side end
Right of the recessed part formed by cutting out two opposing parts of the quadrant
The concave portion cut away leaving a convex portion at the outer end in the circumferential direction is the convex portion.
And an outer cylinder having the same shape as that of the inner cylinder.
The inner cylinder is screwed in from the joint side end so that the joint end of the inner cylinder is the outer cylinder.
By joining until the boundary between the concave and convex portions of
Configure a hose joint and connect two of these hose joints to each other.
By inserting from the hand side and turning clockwise, one side
Fit the convex part of one hose joint into the concave part of the other hose joint.
So that the joint-side ends of the two inner cylinders are tightly connected to each other.
It is intended to be worn . Also, the reverse screw of the inner cylinder
It is preferable to fit an O-ring around the front and rear periphery of the part .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The hose joint according to the present invention will be described with reference to FIG. 1 corresponding to the embodiment. To connect two hose joints each formed by screwing the outer cylinder 2 into the inner cylinder 1, for example, Of the hose joint on the right side is fitted into the concave fitting part 5, 5 'of the hose joint. At this time, the concave fitting portions 5 and 5 ′ and the projecting pieces 6 and 6 ′ divide the joint-side end 2 a of the outer cylinder 2 into four equal parts, and cut out two opposing parts thereof to form a concave part. Since the fitting portions 5 and 5 'are formed and the remaining portions are formed as the protruding pieces 6 and 6', they are in the same width relationship with each other, and any of the recessed fitting portions 5 and 5 'and the protruding pieces 6 and 6' But they fit.

After the concave fitting portions 5, 5 'and the protruding pieces 6, 6' are fitted, the left and right outer cylinders 2, 2 are rotated rightward with respect to each other, so that, for example, the left outer cylinder 2, The convex portion 8 of the outer cylinder 2 on the right is fitted into the concave portion 7. From a different point of view, it can be said that the convex portion 8 of the left outer cylinder 2 is fitted into the concave portion 7 of the right outer cylinder 2, and the concave portion 7 'and the convex portion Similar fitting is performed between the 8's.

[0007] From the above, the hose joint of the present invention,
The same joint can be used by being connected to the left and right hoses 10 and 10, which have no relationship between males and females and do not have a joint connecting direction.

Further, while the concave portions 7, 7 'and the convex portions 8, 8' of each concave fitting portion of the outer cylinder are fitted rightward with each other, the inner cylinder 1 and the outer cylinder 2 are mutually fitted. When the two hose joints are connected to each other and turned in the fitting direction when the two hose joints are connected to each other, the inner cylinder 1 has its joint side end 1b with respect to the outer cylinder 2 on the other joint side. Since the inner cylinder 1 is urged toward the end 1b, the left and right inner cylinders 1 are connected to the joint-side end 1b,
The members press against each other, so that the sealing performance of the joint can be improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a connected state of the hose joint of the present invention. FIG. 2 (a) is a front view showing a state in which the inner tube and the outer tube of the hose joint according to the present invention are connected, and FIG. 2 (b) is a side view showing the joint side end of FIG. 2 (a). is there. FIG. 3 (a) is a front view showing the inner tube of the hose joint according to the present invention, and FIG. 3 (b) is a side view showing the joint side end of FIG. 3 (a). FIG. 4 (a) is a front view showing the outer cylinder of the hose joint according to the present invention, and FIG. 4 (b) is a side view showing the joint side end of FIG. 4 (a).

As shown in FIG. 1, the hose joint of the present invention is used as a hose coupling joint.
As shown in FIG. 1, the outer cylinder 2 is screwed into the outer periphery of the inner cylinder 1 to form one joint.

More specifically, as shown in FIG. 3, the inner cylinder 1 is formed of a metal cylinder having a lumen 12 with a constant diameter, and has an uneven step portion on the outer periphery of the hose insertion portion 1a. 4 is formed along the circumferential direction, and the hose 10 is inserted along the step portion 4. Also, the joint side end 1 of the inner cylinder 1
The outer periphery of the outer cylinder b is formed to have a slightly larger diameter than the convex peripheral part 4a of the step part 4, and the outer cylinder extending from the joint side end part 1b to the hose insertion part 1a.
On the outer periphery of the fitting portion , a reverse screw portion 3 is formed at a substantially central portion by turning a screw to the left over a predetermined width.

Next, as shown in FIG. 4, the outer cylinder 2 is formed of a metal cylinder having an inner threaded portion 13 formed on the inner periphery thereof.
The reverse thread 3 on the outer periphery of the inner cylinder 1 can be screwed into the inner thread 13 to connect them. Also, the reverse thread 3 of the inner cylinder 1
O-rings 11 and 11 are fitted around the outer periphery before and after to prevent the intrusion of muddy water and the like from the gap between the inner cylinder 1 and the outer cylinder 2 when they are screwed together.

At the joint side end 2a of the outer cylinder 2, a pair of opposing portions are cut off by an equal amount at a position where the peripheral edge is divided into four to form two identically shaped concave fitting portions 5, 5 '. It is. Further, the pair of protruding pieces 6, 6 'remaining on the joint side end 2a of the outer cylinder 2 due to the cutting of the concave fitting portions 5, 5' are respectively taken from the inner edge sides of the concave fitting portions 5, 5 '. The concave portions 7, 7 'having the same shape are cut in the clockwise circumferential direction. The concave portions 7, 7' and the convex portions 8, 8 'remaining at the joint side end are also formed to have the same shape.

Then, when the outer cylinder 2 is fitted around the outer periphery of the inner cylinder 1 as described above, the inner thread portion 13 of the outer cylinder 2 is screwed with the reverse thread portion 3 of the inner cylinder 1. As the screwing amount of the outer cylinder 2,
The joint-side end is located at the boundary between the concave portions 7, 7 'and the convex portions 8, 8' of the inner cylinder 1, that is, the joint-side end 1b of the inner cylinder 1 is along the periphery of the concave portions 7, 7 '. And expose it. Thus, one hose joint was formed. In order to use this hose joint, as shown in FIG. The hose joint is brought in, and the protruding pieces 6, 6 'of the right and left hose joints are inserted into the concave fitting portions 5, 5'. Next, when the left and right hose joints are rotated clockwise with respect to each other,
The protrusions 8, 8 'are fitted into the recesses 7, 7' of the protruding pieces 6, 6 'to connect the left and right hose joints.

At this time, the joint-side end of the inner cylinder 1 exposed along the periphery of the recesses 7, 7 'guides the insertion of the projecting pieces 6, 6', thereby facilitating the connection operation.

[0017] In addition, when connecting the two hose fittings, each other
When rotating in the fitting direction (clockwise), the outer cylinder 2
Is screwed into the left screw of the inner cylinder 1, so that the left and right inner cylinders
The joint side ends 1b and 1b of the first and the first are urged in the protruding direction.
The joint side ends 1b and 1b are pressed against each other.
To improve the sealing performance of the joint,
Prevents loosening of the inner cylinders 1 and 1 in the cylinders 2 and 2
Can be .

[0018]

As described above, the hose joint of the present invention can connect joints having the same structure, has no gender relationship, and does not have a joint connecting direction.

Further, it is not necessary to select which protruding piece 6, 6 'is to be fitted to which concave fitting part 5, 5', random connection in the circumferential direction is possible, and easy and quick connection work is possible. Becomes

Further, when the left and right hose joints are rotated in the fitting direction (clockwise) , the left and right inner cylinders 1, 1
The joint side ends 1b and 1b of
The joint side ends 1b, 1b
This improves the sealing performance of this joint and
Prevents loosening of the inner cylinders 1 and 1 in the cylinders 2 and 2
Can be .

[Brief description of the drawings]

FIG. 1 is a front view showing a connected state of a hose joint of the present invention.

FIG. 2 (a) is a front view showing a state in which the inner tube and the outer tube of the hose joint according to the present invention are connected, and FIG. 2 (b) shows the joint side end of FIG. 2 (a). FIG.

3 (a) is a front view showing the inner tube of the hose joint according to the present invention, and FIG. 3 (b) is a side view showing the joint side end of FIG. 3 (a).

4 (a) is a front view showing an outer cylinder of the hose joint according to the present invention, and FIG. 4 (b) is a side view showing an end of the hose joint shown in FIG. 4 (a).

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Inner cylinder, 1a ... Hose insertion part, 1b ... Joint side end part of inner cylinder, 2 ... Outer cylinder, 2a ... Joint side end part of outer cylinder, 3 ... Reverse screw part of inner cylinder, 4 ... Step part 5, 5 'fitting part, 6, 6' projecting piece, 7, 7 'concave part, 8, 8' convex part, 13 internal screw part of outer cylinder.

Claims (2)

(57) [Scope of request for utility model registration] 1. A hose having a step formed on an outer periphery of a hose insertion side.
Reverse threaded part with screws cut leftward on the outer part of the fitting and the fitting side
And an inner screw screwed into the reverse screw.
Formed and opposed to each other in four equal parts of the periphery of the joint side end
At the outer edge in the clockwise circumferential direction of the recess formed by cutting out the two parts
The concave part cut away leaving the convex part has the same shape as the convex part
An outer cylinder is formed, and this outer cylinder is screwed from the joint side end of the inner cylinder.
And the joint-side end of the inner cylinder is located at the boundary between the concave and convex portions of the outer cylinder.
One hose joint by joining all the way to the
And fit the two hose joints together from the joint side.
By turning clockwise, one hose joint
Fit the convex part to the concave part of the other hose joint and join,
Make sure that the joint-side ends of the two inner cylinders are in close contact with each other.
A hose joint characterized in that: 2. The hose joint according to claim 1, wherein an O-ring is fitted to the front and rear outer circumferences of the reverse thread portion of the inner cylinder.