JPH0426444Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lance holder having a structure for holding a lance (oxygen lance) and preventing oxygen leakage.

[Prior Art] As shown in FIG. 3, a conventional lance holder includes a lance 21, a head 22, a holder body 23, a valve 24, an oxygen hose 25, a rubber gasket 26,
By screwing in the head 22, a cylindrical rubber gasket 26 inside the holder main body 23 is compressed, and the lance 21 contained in the rubber gasket 26 is gripped.

[Problem that the invention attempts to solve]

However, with this configuration, when two or more types of lances are used, it is necessary to prepare lance holders for each type or to replace internal parts. Also, if the outer diameters are approximate, it must be inserted into the holder and checked to see if they match.

The present invention aims to solve these problems.

[Means for solving problems]

This invention is equipped with two consecutive heads with different inner diameters for inserting the lance into the front part of the lance holder body, each of which has a cylindrical rubber gasket that encloses the proximal end of the lance, and a collar that contacts the tip of the rubber gasket. When using two types of lances with different outer diameters, use the intermediate head when using the lance with the smaller outer diameter, and rotate the tip head when using the larger lance to adjust the tip of the collar. This lance holder is characterized in that lances of different outer diameters can be attached to one unit by pressing the rubber gasket and compressing the rubber gasket in its longitudinal direction. This eliminates the work of replacing the parts, reduces the user's labor, and allows the work to be done safely and quickly.

(Example) The present invention will be described below based on an example shown in the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

In the figure, 1 is a lance, 2 is a head A, 3 is a head B, 5 is a holder body, 6 is an oxygen hose, 7 is a rubber seal A, 8 is a rubber seal B, 9 is a check valve device, 10 is a collar A, 11 is color B.

The head A2 is screwed together with the head B3, and the head B3 is screwed together with the holder body 5. Inside the head B3, a collar A10 and a rubber seal A7 are built in from the front. A collar B11 and a rubber gasket B8 are built into the interior from the front, and the collar A10 is formed so as to press the rubber gasket A7. Collar A10 is pressed by rotating head A2, and collar B11 is similarly pressed by rotating head B3.

In this embodiment, when using a large diameter lance, first insert the large diameter lance 1a until it hits the head B3 and rotate the head A2 clockwise as shown in Figure 2A. A
2 presses the collar A10, compresses the cylindrical rubber gasket A7 adjacent to the collar A10, grips and seals the lance 1a contained in the rubber gasket A7.

Similarly, when using a lance with a small outer diameter, as shown in Figure 2B, insert the small diameter lance 1b all the way to the back and rotate head B3 clockwise. is pressed to compress the cylindrical rubber gasket B8 adjacent to the collar B11, gripping and sealing the lance 1b contained in the rubber gasket B8.

In addition, a check valve device 9 is installed in case the melt flows backward, so that work can be performed safely and smoothly.

When removing the lance, if the large diameter lance 1a is attached, turn the head A2 counterclockwise, and if the small outer diameter lance 1b is attached, turn the head B3 counterclockwise. You can easily escape by turning it and pulling the lance.

[Effect of idea]

As described above, the present invention provides the following effects.

When two types of lances with different outer diameters are used alternately, they can be easily used depending on whether they are tightened at the tip end or at the intermediate head.

Further, by changing the outer diameter of the lance, it is possible to eliminate the trouble of replacing internal parts, as in the past.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the lance holder of the present invention, Fig. 2A is a cross-sectional view of the main part to explain how to attach and detach a large diameter lance, and Fig. 2B shows how to attach and detach a small diameter lance. FIG. 3 is a partially cutaway perspective view showing an embodiment of a conventional lance holder. 1a...Large diameter lance, 1b...Small diameter lance, 2
...Head A, 3...Head B, 5...Holder body, 6...Oxygen hose, 7...Rubber seal A, 8...Rubber seal B, 9...Check valve device,
10...Color A, 11...Color B.

Claims (1)

[Scope of utility model registration request] At the front of the lance holder body, an intermediate head into which a lance with a small outer diameter can be inserted, an intermediate head into which a lance with a large outer diameter can be inserted, and a tip head into which a lance with a large outer diameter can be inserted are arranged in series. A cylindrical rubber gasket that is screwed into the lance holder body and the intermediate head is provided between the lance holder main body and the intermediate head, and a cylindrical rubber gasket that tightens the proximal end of the lance having a small outer diameter by screwing the intermediate head, and a collar that contacts the tip of the rubber gasket. and a cylindrical rubber gasket for tightening the proximal end of a lance having a large outer diameter by screwing the tip head between the intermediate head and the tip head, and a collar in contact with the tip of the rubber gasket. A lance holder featuring: