JP2021049602A - Jig for inserting pipeline in one-touch joint or pulling out pipeline from one-touch joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an operator to easily perform an insertion work or a pull-out work when inserting a pipe into a one-touch joint or pulling out a pipe from the one-touch joint, and to prevent a large work space from being taken. SOLUTION: A main body 30 in which a fitting port 300 is formed by cutting out a part of a side wall of the cylinder in the extending direction of the cylinder, and an inner side surface 30a curved along the shape of the pipe 1 and wrapping the pipe 1. And at least two holes 330 and 331 arranged so as to pass through the outer surface 30b and the inner surface 30a on a line passing through the center of the cross section in the direction orthogonal to the extending direction of the main body 30 and facing each other. The inner side surface 30a is brought into contact with the outer surface 10 of the pipe 1 to be gripped so as to wrap the pipe 1, the pipe 1 is moved in the extending direction of the pipe 1 with respect to the one-touch joint 2, and the pipe 1 is attached to the one-touch joint 2. A jig 3 to be inserted or to pull out the pipe 1 from the one-touch joint 2. [Selection diagram] Fig. 2

Description

The present invention relates to a jig for inserting a pipe into a one-touch joint or pulling out a pipe from the one-touch joint.

When pulling out the pipe inserted into the one-touch joint from the one-touch joint, the collet inside the one-touch joint is pushed into the joint body, the pipe is gripped by the grip, and the pipe moves with the grip in the direction away from the joint body. For example, Patent Document 1 discloses a removal tool for pulling out a pipe from a one-touch joint.

JP-A-2019-42832

The removal tool for pulling out the pipe from the one-touch joint as described above has a problem that the work space is widened depending on the size of the removal tool body and the tool box for accommodating a tool such as a wrench used together with the removal tool. Furthermore, since the removal tool described above cannot be used when inserting the pipe into the one-touch joint, the surface of the pipe slips during the insertion work, for example, because the operator's hand is wet or the pipe is moved by the caterpillar. If it is coated so that it is easy to use, or if the surface is made of a slippery material, it is necessary for the operator to directly grasp the pipe by hand and push it strongly. That is, even though it is a one-touch joint, it is difficult to insert the pipe. In addition, the worker may hurt his / her hand.

Therefore, when inserting the pipe into the one-touch joint or pulling out the pipe from the one-touch joint, the operator can easily perform the insertion work or the pull-out work, and the work space is not widened. There are challenges.

The present invention for solving the above problems is a jig for inserting a pipe into a one-touch joint or pulling out the pipe from the one-touch joint, and cuts a part of a side wall of the cylinder in the extending direction of the cylinder. The outside on a line passing through the center of the cross section in the direction orthogonal to the extending direction of the main body, the main body having a fitting port formed by lacking, the inner surface curved along the shape of the pipe and wrapping the pipe. It is provided with at least two holes arranged so as to penetrate the side surface and the inner surface surface so as to face each other, and the inner surface surface is brought into contact with the outer surface surface of the pipe and gripped so as to wrap the pipe, and the one-touch joint is formed. On the other hand, it is a jig that moves the pipe in the extending direction of the pipe and inserts the pipe into the one-touch joint or pulls out the pipe from the one-touch joint.

It is preferable to provide an elastic member on the inner surface.

The jig according to the present invention used for inserting a pipe into a one-touch joint or pulling out a pipe from a one-touch joint has a fitting port by cutting out a part of a side wall of the cylinder in the extending direction of the cylinder. The formed main body, the inner surface that curves along the shape of the pipe and wraps the pipe, and the outer surface and the inner surface on a line that passes through the center of the cross section in the direction orthogonal to the extending direction of the main body. By providing at least two holes arranged so as to penetrate and face each other, the operator picks the main body part with a finger, puts the pad of the finger along the two holes, and connects the pipe from the fitting port to the main body. The pipe is fitted into the inside of the portion, the pipe is wrapped with the inner side surface, the inner side surface is brought into contact with the outer surface of the pipe, the pipe is gripped, and the pipe gripped by the operator by hand through a jig is attached to the one-touch joint. On the other hand, it is possible to move the pipe in the extending direction and easily insert the pipe into the one-touch joint or easily pull out the pipe from the one-touch joint. That is, when the operator grips the pipe using this jig when inserting the pipe into the one-touch joint or pulling out the pipe from the one-touch joint, the jig does not need to be gripped with great force. Due to the frictional force acting between the inner surface of the pipe and the outer surface of the pipe, the hand holding the pipe does not slip during the insertion work, so that the pipe can be easily inserted. In addition, this jig can also be used when pulling out the pipe from the one-touch joint, and the hand holding the pipe does not slip for the same reason as in the insertion work, so that the pulling work can be easily performed. Furthermore, the size of the jig itself can be kept to a size that is not wasted so that it is slightly larger than the pipe diameter of the pipe, and there are no tools required when using this jig, so there is no work space. And the storage space will not be taken up widely.

By providing an elastic member on the inner surface of the jig according to the present invention, the frictional force acting between the inner surface of the jig and the outer surface of the pipe can be further increased, and when the insertion work or the pull-out work is performed. In addition, it is preferable because the hand of the operator who grips the pipe through the jig becomes less slippery.

It is a perspective view which shows an example of a one-touch joint, a pipe, a jig, and an elastic member attached to the inner side surface of a jig. It is a perspective view explaining a state in which a worker inserts a pipe into a one-touch joint using a jig. It is a perspective view explaining the state which the pipe is inserted into the one-touch joint. It is a perspective view explaining the state which a worker pulls out a pipe from a one-touch joint using a jig.

In the present embodiment, the pipe 1 shown in FIG. 1 is a flexible resin tube made of a synthetic resin such as nylon, polyethylene, or polybutene, but is not limited thereto. An example of the diameter of the pipe 1 is Φ12.

The one-touch joint 2 shown in FIG. 1 is, for example, a conventionally known straight type one-touch joint, but may be an elbow type one-touch joint.
The one-touch joint 2 includes a substantially cylindrical joint body 20, a connector 21 connected to the joint body 20, and a guide ring 22.
On the outer surface of the joint body 20, a screw thread 200 for screwing into a connection portion of a device (not shown) or the like is formed.

Inside the connector 21, a sealing member such as an O-ring (not shown) and a collet that functions as a fastener are arranged. By inserting the pipe 1 into the connector 21 for a predetermined length, the fixing claw of the collet that moves in the radial direction of the connector 21 inside the connector 21 comes into contact with the outer surface 10 of the pipe 1. By pulling the pipe 1 slightly in the pulling direction in this state, the fixing claw of the collet pierces the outer surface 10 of the pipe 1 and locks the pipe 1. As a result, the pipe 1 is properly inserted into the one-touch joint 2.

When pulling out the pipe 1 inserted into the one-touch joint 2, the free end side (+ X direction side in FIG. 1) of the connector 21 is pushed in the direction in which the pipe 1 is inserted, so that the collet fixing claw is radially outside. The fixing claw stuck in the outer surface 10 of the pipe 1 comes off, and the pipe 1 can be pulled out.

The jig 3 according to the present invention used by an operator when inserting the pipe 1 into the one-touch joint 2 shown in FIG. 1 or pulling out the pipe 1 from the one-touch joint 2 is one of the side walls of a tubular body (for example, a cylindrical body). The main body portion 30 is provided with a fitting port 300 formed by cutting out the portion in the extending direction of the tubular body (Z-axis direction in FIG. 1). The fitting port 300 is formed in a rectangular shape in a side view, and is connected from the upper end to the lower end of the side wall of the main body 30. As shown in FIG. 1, the fitting port 300 is formed in the cross section in the direction (X-axis direction) orthogonal to the extending direction (Z-axis direction) of the main body 30, that is, the cross section of the main body 30. It has a substantially arc shape (approximately C shape).

The jig 3 is made of, for example, general-purpose plastic or engineering plastic, a predetermined metal, or the like, and has a property of being slightly deformed by an operator's application of force and returning to its original state. The inner diameter of the main body 30 is set to be substantially the same as the diameter of the pipe 1. The inner side surface 30a of the main body 30 is curved along the shape of the pipe 1 to wrap the pipe 1 and becomes a surface that comes into contact with the outer surface 10 of the pipe 1. Although the inner side surface 30a is a smooth surface in the present embodiment, it may be formed in a satin-like shape or may have minute irregularities.

For example, the inner side surface 30a of the jig 3 may include the elastic member 39 shown in FIG. The elastic member 39 made of rubber, sponge, or the like is formed, for example, in a similar shape with the outer shape of the jig 3 reduced, and is fitted into the internal space of the main body 30 and mounted on or inside the inner side surface 30a. It is adhered to the side surface 30a with an adhesive or the like (not shown).

The jig 3 is formed on the outer surface 30b of the main body 30 on the line L1 passing through the center P1 of the cross section in the direction (X-axis direction) orthogonal to the extending direction (Z-axis direction) of the main body 30 shown in FIG. It includes two holes 330 and 331 arranged so as to penetrate the inner side surface 30a and face each other. The jig 3 may be provided with three or more holes.

The two holes 330 and 331 are formed through, for example, by cutting out the side wall of the main body 30 in a substantially rectangular shape. The depths of the two holes 330 and 331 are preferably such that when the operator grips the jig 3 with a finger, the pad of the finger slightly protrudes toward the inner side surface 30a. In the example shown in FIG. 1, the two holes 330 and 331 do not extend to the left and right ends of the side wall of the main body 30, but may extend to the left and right ends of the side wall. Further, the shapes of the two holes 330 and 331 may also be circular or the like.

Hereinafter, a case where the operator inserts the pipe 1 into the one-touch joint 2 by using the jig 3 shown in FIG. 1 will be described. For example, an operator picks the jig 3 shown in FIG. 1 with two fingers and puts the pad of each finger along the two holes 330 and 331. Next, the jig 3 gripped by the operator with a finger is carried onto the pipe 1, and the pipe 1 is fitted into the internal space of the jig 3 from the outer surface 10 side through the fitting port 300. As a result, by wrapping the pipe 1 with the inner side surface 30a and bringing the inner side surface 30a into contact with the outer side surface 10 of the pipe 1, the operator can grasp the pipe 1 with a finger via the jig 3. The inner side surface 30a of the jig 3 may slightly bite into the outer surface 10 of the pipe 1. Further, it is preferable that the elastic member 39 is arranged on the inner side surface 30a.

Next, as shown in FIG. 2, the tip of the pipe 1 gripped by the operator via the jig 3 is further inserted into the connector 21 of the one-touch joint 2 through the guide ring 22. That is, the pipe 1 is moved so as to be inserted into the one-touch joint 2 in the extending direction (−X direction) of the pipe 1. Here, unlike the case where the operator directly grips the pipe 1 with a finger, the inner side surface 30a of the jig 3 and the pipe 1 do not need to be gripped by the operator with a large force. Since the hand holding the pipe 1 does not slip due to the frictional force acting between the outer side surface 10 and the pipe 1, the pipe 1 can be easily inserted. Further, since the pad of the operator's finger is inserted into the two holes 330 and 331 of the jig 3, the finger does not slip with respect to the jig 3.

In the example shown in FIG. 2, the elastic member 39 is not attached to the inner side surface 30a of the jig 3, but the jig 3 is provided with the elastic member 39 on the inner side surface 30a, so that the inner surface surface of the jig 3 is provided. It is preferable because the frictional force acting between the 30a and the outer surface 10 of the pipe 1 can be further increased, and the finger gripping the pipe 1 via the jig 3 becomes less slippery when performing the insertion work.

For example, by inserting the Φ12 pipe 1 into the one-touch joint 2 by, for example, about 25 mm using the jig 3 as described above, as described above, the collet fixing claw inside the connector 21 (not shown) is fixed. Is pierced into the outer surface 10 of the pipe 1 to lock the pipe 1, and the pipe 1 is properly inserted into the one-touch joint 2 as shown in FIG.
After that, the operator pulls the jig 3 in the direction away from the outer surface 10 of the pipe 1, so that the pipe 1 passes through the fitting port 300 and is separated from the jig 3.

Hereinafter, a case where the operator pulls out the pipe 1 from the one-touch joint 2 by using the jig 3 shown in FIG. 4 will be described.
The operator grips the jig 3 attached to the pipe 1 with the pad of two fingers aligned with the two holes 330 and 331. As described above, after the operator unlocks the outer surface 10 of the pipe 1 by a collet (not shown) in the connector 21 with the other hand not holding the jig 3, for example, the one-touch joint 2 The pipe 1 is moved so as to be pulled out in the extending direction (+ X direction) of the pipe 1. Here, unlike the case where the operator directly grips the pipe 1 with a finger, the inner side surface 30a of the jig 3 and the pipe 1 do not need to be gripped by the operator with a large force. Since the hand holding the pipe 1 does not slip due to the frictional force acting between the outer side surface 10 and the pipe 1, the pipe 1 unlocked by the one-touch joint 2 can be easily pulled out. Further, since the pad of the operator's finger is inserted into the two holes 330 and 331 of the jig 3, the finger holding the jig 3 does not slip.

The jig 3 according to the present invention is not limited to the above embodiment, and the configuration of the pipe 1 and the one-touch joint 2 shown in the attached drawings is not limited to this, and the present invention is not limited to this. It can be changed as appropriate within the range where the effect of

1: Piping 10: Outer surface of piping 2: One-touch fitting 20: Fitting body 200: Thread 21: Connector 22: Guide ring 3: Jig 30: Main body 300: Fitting port 330, 331: Hole 30a: Jig Inner surface 30b: Outer surface of jig 39: Elastic member

Claims (2)

A jig that inserts a pipe into a one-touch joint or pulls out the pipe from the one-touch joint.
A main body portion in which a fitting port is formed by cutting out a part of the side wall of the tubular body in the extending direction of the tubular body, and
An inner surface that curves along the shape of the pipe and wraps the pipe,
The main body is provided with at least two holes arranged so as to pass through and face the outer surface and the inner surface on a line passing through the center of a cross section in a direction orthogonal to the extending direction of the main body.
The inner surface is brought into contact with the outer surface of the pipe and gripped so as to wrap the pipe, the pipe is moved in the extending direction of the pipe with respect to the one-touch joint, and the pipe is inserted into the one-touch joint, or A jig for pulling out the pipe from the one-touch joint. The jig according to claim 1, wherein an elastic member is provided on the inner surface thereof.

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