JPH024313Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a hose coupling set for connecting and fixing hoses.

<Prior art> As shown in FIG. 4, a conventional connecting fitting used to connect and fix a hose connects a hose 4 to a nipple 2a of a joint body 2 provided with curved irregularities.
A roughly semicircular arc-shaped 2 is molded into this connecting part.
Two fixtures 1 are brought into contact with each other with their curved portions facing each other, and the fixtures 1 are secured to each other with screws 3, thereby tightening and fixing the hose to the joint body 2.

However, with this method, when the joint body 2 is used with the joint 2b connected to a compressor, if the hose 4 comes off from the nipple 2a due to this pressure, the hose 4 swings around with the fixture 1 firmly attached. There was a risk of injury to workers etc.

<Technical problem to be solved by the invention> The technical problem to be solved by the invention is to prevent danger to workers etc. even if the hose becomes disconnected when connecting the hose to the connecting fitting. It is in.

<Means for Solving the Technical Problems> The technical means taken by the present invention to solve the above problems is to interpose a curved portion between opposing substantially semicircular arc-shaped fixtures formed identically and the curved portions of the fixtures. The fixing device consists of a hollow tubular connector main body inserted into the connector body and a screw for screwing the fixing devices together, and the fixing device has a hook protruding inwardly from one side edge of the curved portion, and has a hook on both sides of the curved portion. A flat part is provided at the end edge, a part of one of the flat parts is cut out to protrude toward the inner surface of the fixing device, and at the same time opens to form an engaging pawl and a screw hole corresponding to the screw, respectively, and is further curved. An engaging hole corresponding to the engaging claw is opened at a position symmetrical to the engaging claw with respect to the central axis of the part, and a screw hole corresponding to the threaded hole is opened at a position symmetrical to the screw hole, and the connection A coupling part is provided on one side of the vessel body in the tube axis direction, a connecting part is provided on the other side, and a retaining groove for retaining the retaining claw is provided on the circumference between the joint part and the connecting part. It is characterized by

<Operation> With the hose fitted and connected to the connection part of the coupler body, the latching claws of the two fixtures are opposed and latched into the latching grooves of the main body, and the engaging claws and the engaging hole are mutually connected. The inner surface of the curved part is brought into contact with the connecting part via the hose, and the screw holes of the mutual fixtures are aligned to connect the fixtures by screwing with bolts and nuts. It is firmly latched and fixed.

Therefore, when the force of fitting the hose into the connection reaches its limit due to the pressure of the compressor or the like, the fixture remains fixed to the coupler and only the hose is removed from the connection.

Further, by removing the screws and pulling out the mutually engaging pawls of the opposing fixtures from the engaging holes, the latching pawls are separated from the latching grooves and the fixtures are removed from the coupler body.

<Example> An embodiment of the present invention will be described based on the drawings.

Hose coupling set A includes a substantially semicircular arc-shaped fixture 1 facing each other, a hollow tubular coupler body 2 inserted between the curved portion 1a of the fixture 1, and the fixture 1.
It consists of screws 3 that are removably screwed together.

The fixture 1 is made of a metal material and is formed by press-molding a pair of metal members facing each other, and consists of a curved part 1a in the center and flat parts 1b, 1b on both sides. Also, the fixture 1
A flange 1c of an appropriate height is provided on the longitudinal side edge to protrude outward, and the position of the curved part 1a of the flange 1c is set slightly higher than the step height h of the connecting part 2a of the coupler main body 2, which will be described later. It extends in the horizontal direction, has a hook 1d at its tip protruding toward the inner surface, and cuts the flat portion 1b toward the inner surface from one of the starting edges 11, 11 of the curved portion into a U-shape of a predetermined size. At the same time as it is cut out and protruded, it is opened in a U-shape to form an engaging claw 1e and a screw hole 1f corresponding to the screw 3, respectively, and furthermore, the engaging claw 1e is provided on the side of the curved part 1a from the starting edge 1f of the other curved part. An engagement hole 1g opposite to the engagement hole 1g is opened, and a T-shaped bolt 3a, which will be described later, is installed in the flat part 1b on the side of the engagement hole 1g.
Open the screw hole 1h corresponding to (the above-mentioned engaging claw 1
e, the engagement hole 1g, and the two screw holes 1f and 1h are located symmetrically with respect to the central axis B of the curved portion 1a).

The connector body 2 is provided with a connecting portion 2b that connects to a compressor etc. on one side in the pipe axis direction, and a connecting portion 2a with curved concave and convex portions that connects a hose 4 on the other side. A locking groove 2c corresponding to the locking claw 1d of the fixture 1 is recessed on the circumference, and the opposing fixtures 1, 1 have the locking groove 2c through the locking claw 1d, 1d. It is adapted to be hooked to the main body 2 on the circumference.

The screw 3 is composed of a T-shaped bolt 3a whose head 3a' is formed into a rectangular shape whose width is approximately the same as the inner width W of the fixture 1, a hexagonal nut 3b, and a base ring 3c. Head 3 as shown in Figure 3
The fixtures 1, 1 are screwed and fixed to each other with the two opposing sides of a' substantially touching between the opposing flanges 1c of the fixture 1.

Therefore, in such an embodiment, the connecting portion 2 of the coupler body 2
With the hose 4 fitted and connected to the main body 2, the hooks 1d and 1d of the two fixtures 1 and 1 are opposed and hooked into the hook groove 2c of the main body 2, and the opposing engaging claws 1e and The engaging holes 1g are engaged with each other to form the curved portion 1a.
The inner surface is brought into contact with the connecting part 2a through the hose 4, and the screw holes (1)f, 1h of the fixing plates 1, 1 are aligned, and the T-bolt 3a, nut 3b, and stand ring 3c are connected as shown in FIG. Fixtures 1, 1 are placed so that the two sets are in three-dimensionally symmetrical positions with respect to the opposing fixtures 1, 1.
1, the hose 4 is tightened and fixed to the hose coupling set A.

As mentioned above, in this embodiment, the fixture 1 is press-molded, so unlike conventional mold-molding, it is thin and highly elastic, and the hose 4 is attached to the coupler 2.
Since the fixing device 1 is strongly tightened and fixed by the connecting portion 2a of the fixing device 1, and the flange 1c is integrally provided on the side edge of the fixing device 1, the bending strength of the fixing device 1 itself is increased.

In addition, the T-bolt 3a does not rotate because the head 3a' of the T-bolt 3a screws and fixes the fixtures 1 and 1 together with the two opposing sides substantially touching between the opposing flanges 1c of the fixture 1, and the T-bolt 3a does not rotate. Since the two sets of bolts 3a and nuts 3b are screwed into screw holes 1f and 1h that are three-dimensionally symmetrical with respect to the opposing fixtures 1 and 1, the screws 3 are difficult to loosen.

<Effects of the invention> As described above, in the present invention, when the hose is fitted to the connection part of the coupler, the opposing fixture is hooked into the hooking groove of the coupler and fixed by screwing. The fixture is firmly latched onto the coupler.

Therefore, when the fitting force of the hose to the connection part reaches its limit due to pressure from a compressor, etc., the fixing device remains fixed to the coupler, and only the hose can be removed from the connection part, and the fixing device remains fixed as before. It is possible to prevent the danger of the tool coming off the coupler while still attached and swinging around, injuring the worker.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a vertical sectional front view showing the main parts, FIG. 2 is a side view of the same, FIG. 3 is an exploded perspective view, and FIG. 4 is a vertical sectional front view showing a conventional example. It is. In the figure, A: hose coupling set, B: center shaft, 1: fixture, 1a: curved part, 1b: flat part, 1d: latching claw, 1e: engaging claw, 1f, 1h:
Screw hole, 1g: engagement hole, 1f: curved part starting edge,
2: Connector body, 2a: Connection part, 2b: Coupling part,
2c: Latch groove, 3: Screw.

Claims (1)

[Scope of utility model registration request] It consists of a substantially semicircular arc-shaped fixture formed identically, a hollow tubular connector body inserted between the curved portions of the fixture, and a screw that screws the fixtures together, and the fixture is curved. A latch claw is provided on one side edge of the fixture to protrude toward the inner surface, and a flat portion is provided at both ends of the curved portion, and a portion of one of the flat portions is cut and protrudes toward the inner surface of the fixture. and at the same time open to form an engaging pawl and a screw hole corresponding to the screw, respectively, and further an engaging hole corresponding to the engaging pawl at a position symmetrical to the engaging pawl with respect to the central axis of the curved part, Then, a screw hole corresponding to the screw hole is opened at a position symmetrical to the screw hole, and a connecting portion is provided on one side of the connector body in the tube axis direction, and a connecting portion is provided on the other side, and the connecting portion and A hose coupling set in which a retaining groove for retaining the retaining pawl is recessed on the circumference between the connection parts.