JPH0426785Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a connector for hoses (soft tubes) made of synthetic resin and rubber. Horsemender).

(Prior art) If a synthetic resin hose that is generally used for water or air supply at a construction site etc. is damaged, such as cracking or breaking, for some reason, the hose can be replaced without replacing the entire hose. Cut and remove the damaged part,
Japanese Utility Model Publication No. 14288/1973 has proposed a hose connector for connecting other usable parts.

(Problem to be solved by the invention) In the conventional hose connection device described above, an annular plate with continuous radial caulking pieces is fixed and fixed to the hose insertion pipe, so some of the caulking pieces may be deformed. If the hose tightening function is no longer achieved, the entire connecting device becomes unusable and must be discarded. Additionally, this connector is used not only to repair and connect hoses, but also to connect multiple hoses to a certain length. There is a problem in that the connection tool cannot be connected reliably.

The present invention was made in view of the problems of the conventional technology described above, and its purpose is to connect the hose insertion pipe and hose retaining ring according to the inner diameter or outer diameter of the hose to be connected. To provide a hose connector that can be replaced with each other.

(Means for Solving the Problems) In order to achieve the above object, the hose connection device of the present invention has an annular plate arranged vertically in the longitudinal center of the hose insertion tube, which has nipples formed on the left and right sides. It is characterized in that it is fixed upright and that a hose holding ring having radial caulking pieces is detachably attached to the annular plate by engagement means of a concave-convex member.

The hose holding ring that is engaged with and detached from the annular plate consists of a disc part provided with an engagement means of a concavo-convex member, and caulking pieces protruding radially from the outer periphery of the disc part. A driving pawl is bent at the tip, and a biting protrusion may be provided at the widthwise side edge of the caulking piece.

(Function) According to the above configuration, the hose holding ring can be attached to the annular plate fixed to the hose insertion pipe by the engaging means of the uneven member. Since these can be arbitrarily combined, it is possible to select and combine them according to the inner and outer diameters of the hoses to be connected.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. In the figure, 1 is a hose insertion pipe, and bamboo-shaped nipple parts 1a and 1b are formed on the left and right sides. An annular plate 2 is vertically fixed in an intermediate position between 1a and 1b.

Engagement pins 3 and 4, which correspond to convex members for engaging and disengaging hose retaining rings 5 and 6, are fixed to the left and right outer surfaces of the annular plate 2. The engaging pins 3 and 4 are stepped pins having a head having a diameter larger than the shaft diameter at the tip, and are fixed at two opposite locations on the diameter line on both the left and right sides. The hose holding rings 5 and 6 are the disk portion 5
Caulking pieces 5b, 6b are arranged radially from the outer peripheral edges of a, 6a, and driving claws 5c, 6c are provided protruding from the tips of the caulking pieces 5b, 6b.
Biting protrusions 5d and 6d are provided on the side edges of b and 6b. The disc portions 5a, 6a are cut out with locking holes 7, 8 that engage and disengage the engaging pins 3, 4 protruding from the annular plate 2.

The locking holes 7 and 8 are engagement holes 7a and 8a formed in an arc shape with the nipple portion as the center of rotation, and enlarged guide holes 7b and 8b that are continuously cut out on one side of the engagement holes 7a and 8a. and engaging holes 7a, 8
The width of the hole a is made slightly larger than the shaft diameter of the engaging pins 3 and 4, and the diameter of the enlarged guide holes 7b and 8b is such that the heads of the engaging pins 3 and 4 can fit therein.

Thereby, after the hose holding rings 5 and 6 are fitted into the locking holes 7 and 8 of the disc parts 5a and 6a in correspondence with the hooking pins 3 and 4 of the annular plate 2, the locking holes 7 and 8
By rotating in the circumferential direction through the engagement holes 7a, 8a and engaging the heads of the engagement pins 3, 4 with the edges of the engagement holes 7a, 8a, the hose retaining rings 5, 6 are attached to the shaft. The nipple portions 1a, 1b are prevented from coming off in the direction.
It is now possible to tighten the hoses 9, 9' that are fitted to the hoses.

In addition, the hose retaining rings 5 and 6 are attached to the hose insertion pipe 1.
The combination is not fixed, but can be selected and combined in various ways depending on the inner and outer diameters of the hoses to be connected. In addition, hose insertion pipe 1
After fixing the hose retaining rings 5 and 6 using the uneven engagement means, the same operation as when fixing the hose retaining rings to the hose insertion pipe is performed to secure the caulking pieces 5b and 6.
6b is bent so as to come into close contact with the outer peripheral surface of the hose, and the driving claws 5c, 6c and biting protrusions 5d, 6d are bitten into the hose to prevent the hose from coming off.

Further, the engagement and disengagement of the hose retaining rings 5 and 6 with respect to the hose insertion pipe 1 is not limited to the above-described embodiment, and other engagement means using uneven members may be used.

That is, as shown in FIGS. 6 to 8, substantially rectangular engaging protrusions 10, 1 are provided on the outer peripheral surface of the hose insertion pipe 1.
1 are provided protrudingly opposite to each other on the diameter line, and the engaging protrusion 1
The notch recesses 12 and 13 into which the hoses 0 and 11 fit are cut out in the disk parts 5a and 6a of the hose holding rings 5 and 6, and after fitting the notch recesses 12 and 13 to the engagement protrusions 10 and 11, the hose By rotating the retaining rings 5, 6 in the circumferential direction, the disk portions 5a, 6a come into contact with the engaging protrusions 10, 11 and are prevented from coming off in the axial direction, making it possible to connect the hose.

Note that the same members and configurations as in the previous embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted.

(Effects of the invention) As detailed above, the hose connector of the invention has the following features:
An annular plate is vertically fixed in the longitudinal center of the hose insertion tube with nipples formed on the left and right sides, and a hose holding ring with radial caulking pieces is engaged with the uneven member to the annular plate. Since it is detachably attached by means of a coupling means, the hose insertion tube and hose retaining ring can be used in appropriate combinations depending on the inner and outer diameters of the hose to be connected, which is very convenient.

Since the hose retaining ring is joined and engaged with an annular plate fixed to the hose insertion pipe, when the hose retaining ring is crimped, the annular plate serves as a support and the retaining ring is uniformly tightened and deformed. Therefore, when connecting hoses with extremely different outside diameters to the hose insertion pipe, one hose is tightened and fixed with the hose holding ring attached to the annular plate, and the other hose with a large outside diameter is fixed using the hose holding ring. You can also tighten it with a hose band, wire, etc. without using it. In other words, the hose holding ring can be used only on one side.

Moreover, since the hose retaining ring can be freely connected to and detached from the hose insertion pipe, if either the hose retaining ring or the hose insertion pipe is damaged, it can be used again by replacing the damaged parts. Therefore, compared to conventional products in which the entire connector is discarded if it is partially damaged, it is extremely economical. Furthermore, since the hose insertion tube is separated from the hose retaining ring, only the hose insertion tube can be used as a nipple.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway front view with the hose insertion pipe and hose holding ring separated, Fig. 2 is a partially cutaway front view with the hose connected, and Fig. 3 is a partially cutaway front view with the hose connected. The figure is a side view of the hose cut away, Figure 4 is a sectional view taken along line 4-4 in Figure 2, and Figure 5 is the mark of claws and protrusions on the hose due to the tightening of the connector of the present invention. FIGS. 6 to 8 are views showing other examples of the engagement means, FIG. 6 is a partially cutaway front view with the hose insertion pipe and hose holding ring separated, and FIG. 8 is a partially cutaway front view of the hose connected state, and FIG. 8 is a sectional view taken along line 8-8 in FIG. 7. In the figure, 1... hose insertion pipe, 1a, 1b... nipple part, 2... annular plate, 3, 4... hooking pin,
5, 6... Hose holding ring, 5a, 6a... Disk portion, 5b, 6b... Caulking piece, 7, 8... Locking hole.

Claims (1)

[Scope of utility model registration request] An annular plate is vertically fixed in the longitudinal center of the hose insertion pipe with nipples formed on the left and right sides,
A hose connection device in which a hose holding ring having radial caulking pieces is removably attached to the annular plate by engagement means of a concave-convex member.