JPH0735735Y2 - Pipe fitting - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint suitable for application when a plurality of resin pipes such as vinyl chloride pipes and metal pipes such as iron pipes are joined to be laid in the ground. is there.

[0002]

2. Description of the Related Art Conventionally, as this type of pipe connector,
For example, those disclosed in Japanese Utility Model Publication No. 62-117074 and Japanese Utility Model Publication No. 62-117075 are known. This is because the semi-circular engagement saddle body is brought into contact with the mouth neck of the receiving side pipe, and the C-shaped engaging saddle body is fitted from the side of the outlet side pipe. By rotating the operation handle, both pipes are pulled together to form a joint.

[0003]

However, in this case, when the pipes are joined together, the tip end of the C-shaped engaging saddle body, which is a component of the pipe joining tool, is wrapped around the underside of one of the pipes. Since it is necessary to set in a shape, when laying pipes vertically stacked, the fastening saddle body comes into contact with the already laid lower pipe and pipe pillow,
There was a risk that proper pipe joining work could not be performed.

In view of the above circumstances, the present invention eliminates the need for wrapping the components of the pipe connector underneath the pipe, thereby ensuring proper pipe joining work even when the pipes are laid one above the other. An object is to provide a pipe connector that can be used.

[0005]

That is, the present invention has a frame body (2) formed in a gate shape, and a horizontal rod (2) of the frame body.
a) is provided with an arm (5), and both legs (2b,
2c) rotatably provided with connecting links (6),
A semicircle is formed between the ends (6a) of the two connecting links.
Attach the ring-shaped saddle (9) to the connecting ends (9
a, 9b) so as to be freely rotatable,
Between the other end (6b) of the frame and each leg of the frame
Each of the first auxiliary links (1
1) and the second auxiliary link (13) to these connecting links,
The frame body, the first auxiliary link and the second auxiliary link are rocking motion machines.
A semi-circular ring-shaped first engaging member (19) is connected to one first auxiliary link of the two first auxiliary links so as to be rotatable so as to form a structure (8). Edge (19
b) is rotatably mounted, and a semicircular ring-shaped second engaging member (20) is connected to the other one of the two first auxiliary links at its connecting end. (2
0b) so as to be rotatable, and further, these first engaging member and second engaging member are attached to the respective zeniths (19).
c, 20c) so that they can be pivotally attached to each other.

The numbers in parentheses are for convenience of showing corresponding elements in the drawings, and the present invention is not limited to the description in the drawings. This also applies to the next section "action".

[0007]

With the above-mentioned structure, the present invention has two pipes.
When joining (29, 30), on the pipe to be joined
Set the pipe connector (1) so that
When the arm (5) is tilted toward the engaging body (17) in this state, the connecting end portion (19b) of the first engaging member (19) attached to the first auxiliary link (11) on one side causes the saddle (9) to move. ) Side, and at the same time, the connecting end portion (20b) of the second engaging member (20) attached to the other first auxiliary link (11).
Is pulled toward the saddle side, and the engagement distance (L1) of the engagement body (17) including the first and second engagement members is shortened .
Therefore, the fastening body firmly holds one pipe (30) and
In addition, the first auxiliary link is a frame body by the swing motion mechanism (8).
It fell down toward (2), so that the entire fastening body
It works to move toward the saddle .

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the pipe connector according to the present invention, and FIG. 2 is a first part of the pipe connector shown in FIG.
The front view of an engaging member, FIG. 3 is a front view of the 2nd engaging member which comprises the pipe connector shown in FIG. 1, and FIG. 4 shows the engaging state of a 1st engaging member and a 2nd engaging member. Vertical sectional view, FIG. 5 shows the first
FIG. 6 to FIG. 8 are horizontal sectional views showing an engaging state of the engaging member or the second engaging member and the first auxiliary link, FIG. 6 to FIG. 8 are perspective views showing an operation procedure of the pipe joining work, and FIG. 9 is a pipe in the pipe joining work. It is a top view for explaining the pulling operation principle of each other.

As shown in FIG. 1, a pipe connector 1 according to the present invention has a frame 2 formed in a gate shape, and a horizontal rod portion 2a of the frame 2 has a grip 3 at the tip thereof. The fitted arm 5 is integrally provided in a welded form. Further, each leg 2b, 2c of the frame body 2 is provided with a swing motion mechanism 8 including a connecting link 6, a first auxiliary link 11 and a second auxiliary link 13, respectively. That is, the connecting links 6 are respectively provided at substantially the centers of the leg portions 2b and 2c of the frame body 2.
Is rotatably supported about a pin 7. Between the right ends 6a, 6a of the connecting links 6, 6 shown in FIG. 1, a saddle having a semicircular ring shape corresponding to the outer peripheral surface of the pipes to be joined. 9 is supported rotatably about pins 10 and 10 provided on the connection ends 9a and 9b on both sides thereof. Further, a first auxiliary link 11 is rotatably supported around the pin 12 at the tips of the legs 2b and 2c of the frame body 2, respectively, and the left end 6b of each connecting link 6 in FIG.
1 and the left end portion 11a of each first auxiliary link 11 shown in FIG. 1 via the pins 15 and 16, respectively.
Is rotatably provided. Since the distance between the pins 7 and 12, the distance between the pins 12 and 16, the distance between the pins 16 and 15 and the distance between the pins 15 and 7 are all equal, the connecting link 6, the first auxiliary link 11 and the second auxiliary link 11 Auxiliary link 13
Is the four members (legs 2b or 2c of the frame 2, the connecting link 6, the first link) of the leg 2b or 2c of the frame 2.
The auxiliary link 11 and the second auxiliary link 13) can be swung in such a manner that the diamond shape is always held.

The first auxiliary links 1 on both sides of the frame 2
As shown in FIG. 1, an engaging member 17 for gripping one pipe to be joined from both left and right sides thereof is provided between 1 and 11, and the engaging member 17 has a semicircular ring shape. First
The engaging member 19, the second engaging member 20 having a semicircular ring shape, the connecting pins 21 and 22, and the like are included. That is, the first
A notch 19a is formed on the upper side of the zenith portion 19c of the engaging member 19 as shown in FIG. 2, and a connecting pin 21 is provided in the notch 19a via a bolt 23 as shown in FIG. It is provided in the form of being attached. On the other hand, on the lower side of the zenith portion 20c of the second engaging member 20, as shown in FIG.
A notch 20a is formed, and the notch 20a is provided with a connecting pin 22 mounted via a bolt 25, as shown in FIG. Further, the connecting pin 21 and the connecting pin 22 are vertically connected so that the screw portion 21 a of the connecting pin 21 is detachably screwed into the screw hole portion 22 a of the connecting pin 22. In addition, the first engagement member 19 shown in FIG.
As shown in FIGS. 2 and 5, a stepped columnar link shaft 26 is provided in the lower left connecting end portion 19b in a welded form, and the small diameter portion 26a of the link shaft 26 is shown in FIG. Of the two first auxiliary links 11 shown, the hole 11b formed in the first auxiliary link 11 on the left side in the figure is horizontally oriented within a certain distance range, that is, the directions of arrows A and B in FIG. Is movably fitted and engaged with. Similarly, as shown in FIGS. 3 and 5, a stepped columnar link shaft 27 is provided in a welded form at the connecting end portion 20b at the lower right of FIG. 1 of the second engaging member 20. The small diameter portion 27a of the link shaft 27 is
The hole 11b formed in the first auxiliary link 11 on the right side in the figure of the two first auxiliary links 11, 11 shown in FIG. 1 is horizontally oriented within a certain distance range, that is, the arrow A in FIG. , B directions so that they can move in the B direction.

Since the pipe connector 1 according to the present invention has the above-described structure, when the pipes are joined together using the pipe connector 1, first, as shown in FIG. Arm 5 upright and saddle 9
Is positioned above the receiving neck portion 29a of the receiving-side pipe 29, and the engaging body 17 is positioned above the outlet-side pipe 30. Next, as shown in FIG. 7, the pipe connector 1 is lowered and placed on the pipes 29 and 30. Then, the saddle 9 abuts on the receiving neck portion 29a so as to cover the upper half of the outer peripheral surface of the pipe 29, and the engagement body 17 is installed so as to cover the upper half of the outer peripheral surface of the pipe 30. In this state, as shown in FIG. 8, the arm 5 is tilted to the left in the drawing, that is, to the engaging member 17 side. Then, the frame body 2 welded to the arm 5 has the arrow M centered around the pin 7.
Rotate in the direction. As a result, the two links 11, 11 move in parallel to the right side of FIG. 8, that is, the pipe 29 side, and the link shafts 26, 27 fitted and engaged in the holes 11b, 11b of the links 11, 11 are moved. They move in the same direction, that is, toward the pipe 29 side at the same time. Along with this, as shown in FIG. 9, the connecting end portion 19b of the first engaging member 19 and the connecting end portion 20b of the second engaging member 20 move to the pipe 29 side.
And the free end portion 19d at the other end of the second engaging members 19 and 20
And 20d try to stay in their original position due to their inertia. Therefore, the angle α formed by the first engaging member 19 and the second engaging member 20 decreases, and the engaging body 17 is correspondingly reduced.
Since the engagement distance L1 of the pipe 3 becomes short,
The outer peripheral surface of No. 0 is firmly gripped in a manner of supporting four points from both left and right sides.

In this state, when the arm 5 is further tilted to the left in FIG. 8, the pipe 30 held by the engaging member 17 is pulled toward the other pipe 29 (or, conversely, the pipe 2).
9 is pulled toward the pipe 30 side) Two pipes 2
9, 30 are joined. When the arm 5 is tilted, each connecting link 6 is forced to move up and down with respect to the pipe 29, but the saddle 9 is rotatably provided with respect to the connecting links 6 on both sides. The saddle 9 does not separate from the receiving neck portion 29a of the pipe 29 during the work, and the pipe joining work is smoothly performed. Further, when one pulling operation is insufficient, the same operation can be repeated several times to complete the pipe joining work.

Thus, the pipe connector 1 according to the present invention
In the pipe joining work using, the saddle 9 securely holds the receiving neck portion 29a of one pipe 29 to be joined, and the other pipe 30 is sandwiched from the left and right sides by the engaging body 17. It is carried out by firmly gripping the pipes and pulling both pipes 29 and 30 together in that state, so that even when the pipes are laid one above the other, the pipes or pipe pillows on the lower side already laid are not affected. The pipe joining tool 1 does not come into contact with the pipe joining work and the pipe joining work is not hindered, and the pipe joining work can always be properly performed.

[0014]

As described above, according to the present invention,
It has a frame body 2 formed in a gate shape, an arm 5 is provided on a horizontal rod portion 2a of the frame body 2, and both leg portions 2b, 2c of the frame body 2 are provided.
A connecting link 6 is rotatably provided on each of the two
Between the one ends 6a, 6a of the connecting links 6, 6, a semicircular
The saddle 9 in the shape of a ring and connect the connecting ends 9a and 9b on both sides.
Rotatably provided via the other end of each of the connection links 6
Between the portion 6b and the leg portions 2b, 2c of the frame body 2, respectively.
And the first auxiliary link 11 and the first auxiliary link 11 which are rotatably supported to each other.
And the second auxiliary link 13 for connecting the connecting link 6, the frame body 2,
The first auxiliary link 11 and the second auxiliary link 13 perform a swinging motion.
A mechanism 8 is rotatably provided to form the two first parts .
One of the auxiliary links 11, 11 is a first auxiliary link 11
In addition, the semi-circular ring-shaped first engaging member 19 is rotatably mounted around the connecting end portion 19b thereof, and
A semi-circular ring-shaped second engaging member 20 is rotatably attached to the other first auxiliary link 11 of the first auxiliary links 11, 11 so as to be rotatable about its connecting end 20b.
Since the first engaging member 19 and the second engaging member 20 are rotatably attached to each other via the respective zenith portions 19c and 20c, the pipes 29 and 30 should be joined together. The pipe connector 1 is set on the two pipes 29 and 30 from above, and the arm 5 is set in this state.
The connection end portion 19b of the first engagement member 19 attached to the one first auxiliary link 11 by tilting the first engagement member 19 toward the engagement body 17 side.
Of the second engaging member 20 attached to the other first auxiliary link 11 at the same time when the connecting end 20 is pulled toward the saddle 9 side.
b to the saddle 9 side, and the first and second engaging members 1
The engagement distance L1 of the engagement body 17 composed of 9 and 20 can be shortened , and the first auxiliary link 11 can be used for the rocking motion machine.
Since it falls down toward the frame 2 by the structure 8,
To move the entire body 17 toward the saddle 9.
Since it is possible, one pipe 30 is firmly gripped from both left and right sides by the fastening body 17, and the two pipes 2
It is possible to draw the 9 and 30 together and join them. At this time, it is not necessary to set the components of the pipe connector 1 so as to wrap around the lower sides of the pipes 29 and 30, so that the pipe 2
Even when laying 9 and 30 vertically, it is possible to prevent occurrence of a situation in which the pipe connector 1 comes into contact with the already installed lower pipes 29 and 30, pipe pillows, and the like. It becomes possible and the pipe joining work can always be performed properly. Further, the pipe connector 1 is, for example, as shown in FIG.
As shown in, the structure is simple and the number of parts can be reduced.
It is highly durable.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a pipe connector according to the present invention.

FIG. 2 is a front view of a first engagement member that constitutes the pipe connector shown in FIG.

FIG. 3 is a front view of a second engagement member that constitutes the pipe connector shown in FIG.

FIG. 4 is a vertical sectional view showing an engaged state of a first engaging member and a second engaging member.

FIG. 5 is a horizontal sectional view showing an engaged state of the first engaging member or the second engaging member and the first auxiliary link.

FIG. 6 is a perspective view showing one step of a pipe joining operation.

FIG. 7 is a perspective view showing another step of the pipe joining work.

FIG. 8 is a perspective view showing still another step of the pipe joining work.

FIG. 9 is a plan view for explaining the principle of pulling operation of the pipes in the pipe joining work. 1 ... Pipe connector 2 ... Frame 2a ... Horizontal rod 2b, 2c ... Leg 5 ... Arm 6 ... Connection link 8 ... Swing movement mechanism 9 ... Saddle 9a, 9b ... Connection End 11 ... First auxiliary link 13 ... Second auxiliary link 17 ... Engagement body 19 ... First engaging member 19b ... Connecting end 19c ... Zenith 20 ... Second engaging member 20b ...... Connection end 20c ...... Zenith L1 ...... Locking distance

Claims (1)

[Scope of utility model registration request] 1. A frame-shaped body having a gate shape, an arm provided on a horizontal rod portion of the frame body, and a connection link rotatably provided on both legs of the frame body.
A semi-circular ring shape is provided between one ends of the two connecting links.
-Shaped saddles are rotatably mounted through the connecting ends on both sides.
Between the other end of each connecting link and each leg of the frame.
The first auxiliary levers rotatably supported with respect to each other.
Link and the second auxiliary link to these connecting link, frame,
The first auxiliary link and the second auxiliary link form a swing motion mechanism.
Rotatably provided in such a manner that a semicircular ring-shaped first engaging member is rotatably attached to one of the first auxiliary links of the two first auxiliary links about its connecting end. While mounting, a semicircular ring-shaped second engaging member is rotatably mounted on the other first auxiliary link of the two first auxiliary links so as to be rotatable about its connecting end. A pipe connector in which the first engaging member and the second engaging member are rotatably attached to each other via respective zenith portions.