JPH035756Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The invention relates to a thin-walled hose joint.
For example, it relates to a hose joint used to connect the middle part of a long hose used to transport mortar, gravel, etc.

<Prior Art> Conventionally, as shown in FIG. 6, this type of hose joint has been constructed by fitting and inserting cylindrical bodies 10' and 11' onto the outer peripheral surfaces of the ends of both hoses 2' and 3' to be connected. , both cylinders 10',
Several fixing screws 20 and 21 to be screwed onto the hoses 2' and 3' are screwed onto the outer peripheral surface of 11', and a nut 12' is locked to one of the cylindrical bodies 11'. ' is screwed onto the other cylindrical body 10'.

However, this hose joint has both cylindrical bodies 10', 1
Since both hoses 2' and 3' are connected by screwing the fixing screws 20 and 21 of 1' onto both hoses 2' and 3', only the fixing screws 20 and 21 are screwed together. The hoses 2', 3' have to be used, and the hoses 2', 3' themselves become heavy, resulting in poor workability.

Therefore, as a solution to the above-mentioned drawbacks, there is a nipple-type hose joint that allows the use of thin-walled hoses. However, since this hose joint has a nipple protruding inside the hose, when it is used for mortar spraying and conveying mortar, it is inconvenient that the mortar cannot be conveyed smoothly and the nipple is abraded by the mortar. It has its drawbacks.

<Problems to be Solved by the Invention> The problems to be solved by the invention are to provide a hose joint that can connect a thin hose and does not protrude into the hose.

<Means for Solving the Problems> The technical measures taken by the present invention to solve the above-mentioned problems are: The left and right cylinders that fit on the outside of the hose support cylinder have screw holes for screwing in the fixing bolts that radially hold down the side of the hose folded back along the support cylinder, and one of the left and right cylinders. and a nut that is screwed onto the other cylindrical body.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In the figure, 1 indicates a hose joint, and 2 and 3 indicate thin rubber or resin hoses.

Hose fitting 1 as shown in Figures 1 and 2.
radially connects the hose support tubes 4 and 5 that fit on the outside of both hoses 2 and 3 to be connected, and the side portions 6 and 7 of the hoses 2 and 3 that are folded back along the hose support tubes 4 and 5. It consists of cylindrical bodies 10 and 11 provided with fixing bolts 8 and 9 for holding down, and a nut 12 that locks onto one cylindrical body 11 and screws onto the other cylindrical body 10.

The hose support tubes 4 and 5 are made of a material such as resin into a cylindrical shape with an inner diameter that is approximately the same size as the outer diameter of the hoses 2 and 3, and a hose retainer is provided along the entire circumference on the outer peripheral surface of the tube. Receiving recesses 13 and 14 are formed. Then, these hose support cylinders 4 and 5 are fitted and inserted into the outsides of both hoses 2 and 3, respectively. Next, connect both hoses 2 and 3 along the outer circumferential surfaces of these hose support cylinders 4 and 5.
Fold the hoses 2 and 3 in a shape, and
The cylindrical bodies 10 and 11 are fitted and inserted onto the outer peripheral surface.

The cylindrical bodies 10 and 11 are formed of a material such as resin into a cylindrical shape having an inner diameter that is approximately the same size as the outer diameter of the side parts 6 and 7 of the two hoses 2 and 3, and are made of a material such as resin. Several screw holes 1 are provided at appropriate intervals in the portions corresponding to the hose presser receiving recesses 13 and 14 of 4 and 5.
5 and 16 are opened, and fixing bolts 8 and 9 are screwed into these screw holes 15 and 16. And this cylinder 1
0 and 11 to the hose opening edges on the outer circumferential surfaces of both the hoses 2 and 3, and then tighten the fixing bolts 8 and 9 in the radial direction. , 7 are pressed against the hose retaining recesses 13, 14 of the hose support cylinders 4, 5 to fix the hoses 2, 3 to the cylinders 10, 11.

The cylinders 10 and 11 also have an annular flange 17 on the outer peripheral surface of one cylinder 11 on the edge side of the opening of the hose 3.
A nut 12, which is engaged with the flange 17, is inserted into the outer peripheral surface of the cylinder 11. Then, a male threaded portion 18 is carved on the outer peripheral surface of the other cylindrical body 10 on the side of the opening of the hose 2, and by screwing the nut 12 into this male threaded portion 18, both cylindrical bodies 10, 11
is connected and fixed, and both hoses 2 and 3 are connected.

Further, as shown in FIGS. 3 and 4, both hoses 2 and 3 are cut out with a cut 19 of a desired length along the axial direction from the connection side end, and this cut 19 is used to The hoses 2 and 3 can be easily bent and folded back into a U-shape along the hose support tubes 4 and 5 fitted to the hoses 2 and 3. In this case, by folding back the hoses 2 and 3 along the hose support tubes 4 and 5, the hoses 2 and 3 can be prevented from coming off.

As shown in FIG. 5, the hose joint 1 of this embodiment is used by connecting the hoses 2 and 3 along the hose support tubes 4 and 5 fitted on the outside of both the hoses 2 and 3 to be connected.
After folding back and fitting the cylinders 10 and 11 to the sides 6 and 7 of both the folded hoses 2 and 3, tighten the fixing bolts 8 and 9 provided on both the cylinders 10 and 11 to fix the cylinder 10. , 11 to both hoses 2 and 3. Then, a nut 12 that is engaged with one of the cylindrical bodies 11 is screwed into a male threaded portion 18 of the other cylindrical body 10 to connect both hoses 2 and 3.

<Operation/Effect> Since the present invention has the above configuration, it has the following advantages.

Fold the hoses back along the hose support cylinders fitted on the outside of both hoses to be connected, and radially tighten the fixing bolts of both cylinders fitted to the sides of the folded hoses. The cylinder body is fixed. By screwing the nut that locks onto one cylindrical body onto the other cylindrical body, both cylindrical bodies can be connected and both hoses can be connected.

Therefore, the hose can be attached and fixed to the hose joint by pressing the folded side part of the hose against the hose support cylinder in the radial direction with the fixing bolt of the cylinder.
Instead of using a hose with a wall thick enough to fit the fixing screw as in the past, a thin-walled hose can be used, reducing the weight of the hose itself and making it easier to connect the hose. can be significantly improved.

In addition, since this is a hose joint in which the hose support tube is fitted to the outside of the hose, both hoses can be connected without protruding into the hose, allowing for smooth feeding of mortar etc. with the hose. At the same time, there is no risk of wear on the hose fittings due to the mortar, gravel, etc. being fed.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the hose joint of the thin-walled hose of the present invention, Figure 2 is a cross-sectional view of Figure 1, Figure 3 is a perspective view of the side of the hose, and Figure 4 is a folded back view of the side of the hose. FIG. 5 is an exploded perspective view of the hose joint, and FIG. 6 is a sectional view of a conventional example. In addition, in the figure, 1... Hose joint, 2, 3... Hose, 4, 5... Hose support tube, 6, 7... Side part,
8, 9... Fixing bolt, 10, 11... Cylindrical body, 1
2...Natsuto.

Claims (1)

[Scope of utility model registration request] A hose with left and right hose support tubes that fit on the outside of the ends of both hoses to be connected, and a screw hole for screwing in a fixing bolt that holds the side of the hose folded back along the hose support tubes in the radial direction. A hose joint for a thin-walled hose consisting of left and right cylinders that fit on the outside of a support cylinder, and a nut that locks onto one of the left and right cylinders and screws onto the other cylinder.