JP2504065Y2 - Bag locking pliers for gas conduit construction - Google Patents

Description

[Detailed description of the device]

[0002]

[Field of Industrial Application] The present invention is to remove the adapter for drilling after the drilling work using the service clamp of the steel gas conduit with a diameter of 80 A or less, the chip removal work by the magnet, and the valve service cheese temporary work. TECHNICAL FIELD The present invention relates to a gas conduit construction bag locking plier suitable for improving airtightness and stickiness when a gas conduit construction bag is attached to a service clamp neck in order to prevent gas ejection during tightening work.

[0003]

2. Description of the Related Art Conventionally, as shown in FIG.
After completion of the perforation work with the perforation adapter 30, the opening of the raw rubber plate 28 adhered to the bottom of the gas conduit construction bag 27 is inserted into the service clamp neck portion 31, and the service clamp 32 is further secured by the slip-out preventing band 29. After fixing along the outer circumference, adapter 30 for perforation
Was removed and the chips were removed by a magnet that was previously inserted into the bag 27 for constructing the gas conduit, and then the valve service cheese was temporarily tightened.

[0004]

However, in the method described in the prior art, the raw rubber plate 28 adhered to the bottom of the gas conduit construction bag 27 can be easily replaced by the service clamp neck 3.
There is a problem that the workability is poor because the gas flow rate is deviated from 1, and the gas is jetted and the gas supply pressure is greatly changed due to the gas jet.

In view of the above problems, the present invention aims to improve the airtightness and adherence of the gas conduit construction bag 27 to the service clamp neck 31, and to improve workability. Is.

[0006]

In order to achieve the above object, the present invention has a structure as shown in FIGS.

The insides of the two hollow semicircular ring-shaped metal fittings 1 are the portions that come into contact with the service clamp neck portion 31,
A raw rubber plate 2 adhered with a rubber packing 6 for improving airtightness and stickiness, and the outside of the hollow semicircular ring-shaped metal fitting 1 is adhered to the bottom of the gas conduit construction bag 27.
Semi-circular groove 2 to improve adhesion and adhesion with
5 was formed.

A support plate 2 is fixed above the bottom of the ring-shaped metal fitting 1, and the ring-shaped metal fitting 1 can be freely opened and closed by a joint shaft 8 and a hinge 7 via the support plate 2. On the left and right sides of the bottom of the metal fitting 1, the service clamp neck portion 31 and the service clamp 3 of the ring-shaped metal fitting 1 are provided.
Since the band 26 for strengthening the attachment to the 2 is used, the band stopper 9 is fixed.

Further, the metal fixture fixing plate 4 and the fixing plate 3 each have a swinging sandwiching plate 12 and a stationary sandwiching plate 13 each having an engaging portion 11 at the tip thereof.
It was fixed to the swing lever 17 and the fixed lever 22 via.

The rocking lever 17 includes a torque adjusting lever 2
3, the release lever 19 used for releasing the tightening torque by the torque adjusting lever 23 is connected to the joint shaft 16,
Attached via 18.

Further, a torque adjusting screw 24 for adjusting the tightening torque and a spring locking metal fitting 21 for fixing the spring 20 are attached to the fixing lever 22.

[0012]

By installing the above-described gas conduit construction bag locking pliers on the service clamp neck 31, the gas conduit construction bag 27 can be easily and surely attached, and the perforation adapter 30 can be removed. It is possible to efficiently carry out the work of removing chips with a magnet and the work of temporarily fastening the valve service cheese to the service clamp 32. Further, the rubber packing 6 is provided inside the ring-shaped metal fitting 1.
By adhering, the circumferential strain of the service clamp neck portion 31 can be absorbed, and the airtightness is improved, so that the work can be performed safely.

[0013]

Embodiments of the present invention will be described in detail with reference to FIGS.

A service clamp 3 for attaching valve service cheese to a steel gas conduit 33 having a diameter of 80 A or less.
After installing 2, the gas conduit 3 using the adapter 30 for perforation
3 is punched, and after punching, the punching adapter 30 is attached as it is in order to prevent ejection of gas.

Next, the bag locking pliers for gas conduit construction according to the present invention are attached to the service clamp neck 31 in the following manner.

First, as shown in FIG. 2, the torque adjusting screw 24 is loosened, the torque adjusting lever 23 is opened, and the ring fitting 1 is left in the open state. Then, the ring fitting 1 is attached to the service clamp neck 31. And put it in between, then
The tightening force of the ring-shaped metal fitting 1 is adjusted by the torque adjusting screw 24 to fix the ring-shaped metal fitting 1, and the attachment is strengthened by the band 26.

At this time, the rubber packing 6 adhered to the inside of the ring-shaped metal fitting 1 maintains airtightness and adherence to the service clamp neck 31, and in the present invention, the rubber packing 6 has a single-cell foam sponge. I use rubber,
This does not apply as long as it has airtightness and elasticity.

Next, the bag 27 for construction of the gas conduit is attached to the groove portion 25 of the plier for locking the bag for construction of the gas conduit of the present invention through the raw rubber plate 28 adhered to the bottom.

Thereafter, the perforation adapter 30 is removed and inserted into the gas conduit construction bag 27 in advance while keeping the gas conduit construction bag 27 airtight at the hand insertion port 34 by the worker's arm. With the magnet, chips generated in the pipe during drilling are removed, and the valve clamp cheese is temporarily clamped to the service clamp 32.

[0020]

[Effect of the Invention] By using the gas pipe construction bag locking pliers of the present invention, it is possible to improve the airtightness and the adhesiveness when the gas pipe construction bag 27 is attached to the service clamp neck 31. Gas conduit construction bag 2
7 does not separate and does not cause a large fluctuation in the gas supply pressure due to the ejection of gas, and it is efficient and safe to remove the adapter 30 for perforation, the work of removing chips with a magnet, and the valve service cheese. It is possible to perform temporary tightening work on the service clamp 32.

[Brief description of drawings]

FIG. 1 is a plan view of a bag locking plier for construction of a gas conduit according to the present invention.

FIG. 2 is a bottom view of the present invention when the gas pipe construction bag locking pliers are opened.

FIG. 3 is a left side view of a bag locking plier for gas conduit work according to the present invention.

FIG. 4 is a front view of the present invention when using the bag locking pliers for gas conduit construction according to the present invention.

FIG. 5 is a front view showing a state where a conventional gas conduit construction bag is directly attached to the service clamp neck.

[Explanation of symbols]

 1 ring type metal fitting 2 support plate 3 fixing plate 4 metal fitting fixing plate 5 jaw 6 rubber packing 7 hinge 8 joint shaft 9 band stopper 10 joint shaft 11 engaging part 12 swing clamp plate 13 fixed clamp plate 14 joint shaft 15 joint shaft 16 Joint Shaft 17 Swing Lever 18 Joint Shaft 19 Release Lever 20 Spring 21 Spring Locking Metal Fitting 22 Fixed Lever 23 Torque Adjusting Lever 24 Torque Adjusting Screw 25 Groove 26 Band 27 Gas Conduit Construction Bag 28 Raw Rubber Plate 29 Pullout Prevention Band 30 Perforation Adapter 31 Service clamp neck 32 Service clamp 33 Gas conduit 34 Manual insertion port

Claims (1)

(57) [Claims for utility model registration] [0001] 1. A groove 25 is provided along the outer periphery of a hollow semicircular ring-shaped metal fitting 1, and a rubber packing 6 is required on the inner side thereof.
A ring-type metal fitting 1 is fixed on the bottom, left and right of the bottom with a support plate 2, a metal fitting fixing plate 4 that requires a jaw 5, a fixing plate 3, and a band stopper metal 9, and the ring-shaped metal fitting 1 is a joint shaft via a support plate 2. 8, the hinge 7 can be freely opened and closed. Further, the metal fixture fixing plate 4 and the fixing plate 3 are rocked by a rocking holding plate 12 and a fixed holding plate 13 each having an engaging portion 11 at the tip. The swing lever 17, which is fixed to the lever 17 and the fixed lever 22, includes an opening lever 19 and a torque adjusting lever 23 used for releasing the tightening torque by the torque adjusting lever 23. Further, the fixing lever 22 is composed of a torque adjusting screw 24 mounted on the lower portion and a spring locking metal fitting 21 for fixing the spring 20.