JPH0425584Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a joint, more specifically, the tip of the lever handle (eccentric base) is fitted into the concave groove of the inner pipe by rotating the lever handle attached to the outer pipe. The present invention relates to a joint formed by integrally connecting the inner and outer pipes by tightening the inner and outer pipes.

(Prior art and its problems) Conventionally, this type of joint was connected by inserting the inner pipe into the outer pipe, rotating a single rod-shaped lever handle, and fitting the tip into the groove of the inner pipe. In this type of joint, when the lever handle is rotated to connect the inner and outer pipes, the tip of the lever handle (eccentric base) tightens the concave groove, which requires considerable effort. It is conceivable to improve ease of operation by making the lever handle as long as possible and using a lever.

However, if the lever handle is simply made long, the lever handle will get in the way when attaching a hose, etc. to the exterior pipe, making the task of attaching the hose, etc. cumbersome, and the worker's clothes, etc., may be caught on the lever handle. There was a high risk that the lever handle would be forced to rotate, which was undesirable.

(Problem to be solved by the invention) The present invention was devised in view of the problems of the prior art, and its purpose is to elongate it into a long shape during rotation, and The object of the present invention is to provide a joint equipped with a lever handle that can be shortened, and to facilitate the connection operation between the inner pipe and the outer pipe, while also making it easier to connect hoses, etc., and eliminating the problem of the lever handle being hooked.

(Means for Solving the Problems) The technical means of the present invention to achieve the above object is to combine a lever handle with a handle body whose base is rotatably mounted eccentrically on an exterior tube, and a handle body which is rotatably mounted on an exterior tube with its base eccentrically attached. It consists of a grip part rotatably connected to the end of the main body, and when the lever handle is rotated, the grip part is rotated to extend the lever handle, and after rotation, the grip part is reversed and shortened. The tip of the grip portion is engaged with the edge of the outer tube.

(Function) By using the above-mentioned technical means, when the inner tube is inserted into the outer tube and the grip portion is rotated and placed in line with the handle body, it becomes a long lever handle.
The lever handle can be rotated with little effort by the lever effect, and the eccentric base of the lever handle can be fitted into the concave groove of the inner pipe.

After rotation, when the grip part is reversed and overlapped with the handle body, the lever handle is shortened and the tip of the grip part comes into contact with and engages with the edge of the exterior pipe, thereby connecting the hose of the exterior pipe. The amount of protrusion of the lever handle that protrudes from the area will be reduced, and even if some rotational movement is applied to the lever handle,
The eccentric base of the lever handle does not fall out of the groove.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.The joint A of the present invention has an internal space in front of the side surface.
The supporting pieces a 1 , a 1 of the sheathing tube a are formed by providing a through hole a ₃ communicating with the through hole a ₃ and supporting pieces a ₁ , _{a 1} erected on the upper outer surface of the through hole a ₃ . The lever handle c faces the internal space a' through the through hole _a3 .
The base portion 1a of the outer tube a is eccentrically mounted, and the insertion portion b1 of the inner tube b whose outer diameter is large enough to slide on the inner circumferential surface _a2 of the outer tube a is inserted from the open end of the outer tube _a to open the inner space. b' is connected to the internal space a' of the exterior tube a, and the base part _1a of the lever handle c is fitted into the groove _b2 provided on the outer periphery of the insertion part b1.
The outer pipe a and the inner pipe b are conventionally well known, and detailed explanation thereof will be omitted.

In this embodiment, the lever handles c are provided at two locations facing each other.

The lever handle c consists of a handle body 1 and a grip part 2. The handle body 1 is a plate-shaped body with a base 1a having a substantially circular side surface, and the base 1a is connected to the supporting pieces a ₁ , a ₁ of the exterior tube a. The grip portion 2 is eccentrically attached to the outer tube a by a pin 3, etc., and positioned along the longitudinal direction of the outer tube a, and the grip portion 2 is rotatably connected to the free end portion 1b.

The grip portion 2 is formed to have an approximately (Q) shape in cross section, and its bottom wall 2
The end portion 1b of the handle body 1 is positioned between the side walls 2a, 2a, and is rotatable by means of a pin 4, etc., with the end portion 1b of the handle body 1 facing the exterior tube a side.

Therefore, in the grip part 2, the bottom wall 2c is the handle body 1.
Since the pin 4 is in contact with the end 1b of the
It will rotate 180°.

In addition, in this embodiment, the handle body 1 and the grip portion 2 are
A locking mechanism is provided in both, and an example thereof will be explained based on FIG. A matching recess 2b is provided, and the grip part 2 is inserted into the handle body 1.
When they are rotated to the side and overlapped, the ball portion 5a fits into the recess 2b, and locking can be confirmed with a fitting sound.

Therefore, in order to connect the outer pipe a and the inner pipe b, the lever handles c and c are first rotated and pushed up to move the base portion 1a out of the interior space a'.

At this time, since the lever handles c and c are in a free state, they may be in either an extended or shortened state.

Then, the insertion part b ₁ of the inner pipe b is inserted from the open end of the outer pipe a, and the end part b ₃ is brought into contact with the inner flange part a ₅ of the outer pipe a to open both internal spaces a' and b'. contact, and then rotate the grips 2, 2 and press the bottom wall 2.
c, 2c are brought into contact with the handle bodies 1, 1, and both lever handles c, c are extended into a long shape,
When both lever handles c, c are rotated about the bases 1a, 1a, respectively, and pushed down to a position approximately parallel to the outer pipe a, the eccentrically attached bases 1a, 1a move into the groove b ₂ of the inner pipe b. Tighten and fit, and the end part b ₃ is pressed against the flange part a ₅ and the gasket 6
to ensure a secure seal.

After the connection (after the lever handle c has been rotated), the grip parts 2 and 2 are reversed 180 degrees and the handle bodies 1 and 1 are rotated.
The concave portion 2b of the grip portion 2 is fitted into the ball portion 5a of the ball plunger 5 of the handle body 1.

At this time, the tip 2d of the grip portion 2 is connected to the edge of the sheathing tube a, in the illustrated example, the support pieces a ₁ , the edges a ₁ ′ of the support pieces a ₁ ,
Since it is brought into contact with and engaged with _a1 ', in this state, even if you try to push up the lever handle c, it will not rotate.

Therefore, in this embodiment, the edge 2 of the grip portion 2
2 due to the engagement between the support pieces a ₁ and the end edges a _{1 ′} and a ₁ ′ of the support pieces a 1 and the fitting between the ball plunger 5 and the recess 2b.
The stepped locking mechanism makes it possible to prevent the lever handle c from turning unexpectedly and to ensure that it is locked.

Then, hoses, equipment sides, etc. are connected to the connection part a ₄ of the outer pipe a and the connection part b ₄ of the inner pipe b, respectively.

(Effect of the invention) The present invention consists of a lever handle attached to an exterior pipe connected to an inner pipe, a handle body whose base is eccentric and rotatably attached to the exterior pipe, and a lever handle attached to an end of the handle body. The grip part is movably connected, and when the lever handle is rotated, the grip part is rotated to extend the lever handle, and after the lever handle is rotated, the grip part is reversed and shortened, and the grip part is Because the tip of the handle is engaged with the edge of the outer pipe, when connecting the inner pipe and the outer pipe, the handle is rotated and the handle body and the handle are aligned in line. The lever handle can be pressed down with little effort by fully exerting the lever effect, making it easier to connect the inner pipe and the outer pipe, and after one side is connected (after the lever handle has been rotated). The lever handle can be shortened by inverting the grip and overlapping with the handle body, so the lever handle does not get in the way when connecting a hose, etc. to the exterior pipe, making it easier to connect the hose, etc., and also shortening the lever handle. This reduces the chance of the worker's clothes getting caught, and as a result, it is possible to prevent disconnection due to unexpected rotation of the lever handle.

In addition, after the connection (after the lever handle is rotated), the tip of the grip that is inverted touches and engages the edge of the exterior tube, so the tip of the grip can be reliably engaged with the edge of the exterior tube. The lever handle can be prevented from rotating, the lever handle can be shortened, the connection can be sufficiently prevented from being disconnected, and the lock can be confirmed, which is very useful.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an embodiment of the joint of the present invention, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1;
3 is a sectional view taken along the line -- in FIG. 1, and FIG. 4 is a longitudinal sectional side view of the entire joint showing a state before the base of the extended lever handle is fitted. In addition, in the figure, A...fitting, a...exterior pipe, _a1 ...
Support piece, a ₁ ′...edge, a ₃ ...through hole, b...interior pipe, b ₂ ...concave groove, c...lever handle, 1...
...Handle body, 1a...Base, 2...Grip part,
2a...side wall, 2b...recess, 2c...bottom wall, 2
b...Tip, 5...Ball plunger.

Claims (1)

[Scope of utility model registration request] After the inner pipe is inserted into the outer pipe, the tip of the lever handle fits into the groove of the inner pipe by rotation of the lever handle, thereby integrally connecting the inner and outer pipes. , consists of a handle body that is rotatably attached to the exterior tube with the base eccentrically attached, and a grip part that is rotatably connected to the end of the handle body, and the grip part is rotated when the lever handle is rotated. A joint characterized in that the lever handle is at least extended, and after the lever handle is rotated, the grip portion is inverted and shortened, and the tip of the grip portion is engaged with the end edge of the sheathing tube.