KR200481854Y1 - frame structure of the magnetic compass view - Google Patents

Abstract

The present invention relates to a view frame structure capable of observing a magnetic compass. A view frame structure capable of observing a magnetic compass includes a " C "-shaped inserting portion for inserting a first O- And an elliptical stopping jaw is provided at the distal end thereof to extend to an inner diameter, and an inclined portion inclined outward is formed under the stopping jaw A first groove portion for allowing the third O-ring to be inserted into the lower outer diameter, and a coupling hole for coupling the upper cover to the upper portion.

Description

View frame structure of magnetic compass. {Frame structure of magnetic compass view}

The present invention relates to a magnetic compass, and more particularly, to a view frame structure capable of observing a magnetic compass.

The magnetic compass is made by using the principle that a magnet is pointed north to south when a magnet is placed on a freely rotatable turntable. The north pole is N pole or positive pole, the south pole is S pole or blue pole And the result is the same even if the rod magnet is shaken again. It can be seen that there is an active part in the north of the earth and a blue part in the south part of the earth. The fact that the Earth is a giant magnet means that if we have a magnet, we can easily see the north-south direction, and we can magnetize the magnet in a graduated angle from 0 ° to 360 ° in 1 ° increments. .

The magnetic compass includes a magnetic compass bowl member capable of observing most of the objects, and a main body for safely storing the magnetic compass bowl. The main body includes a lower main body, an upper main body, and a view frame having a convex lens, Quot; Patent Registration No. 10-1571699 "Structure of Magnetic Com- pus ".

In order to solve the problem that the viewing glass is difficult to replace and wash because the view glass is not fixed to the detachable structure in the prior art of the above-mentioned prior art, the viewglass base and the viewing glass It is fixed to the top cover by using a washer, and it has a screw type structure by using a view glass cover after the view glass is inserted.

The above-mentioned prior art is fixed by using a view glass base and a view glass washer and a view glass cover for fixing to the upper cover, and adopts a screw connection method, so that it is produced through various processes during production, The economic power is lowered, and the production time is also increased.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide an image display apparatus, in which a " C "-shaped inner- And an inclined jaw extending inwardly of the jaw and having an elliptical shape is formed on the groove portion, and an inclined portion inclined outward is formed on a lower portion of the engaging jaw, and a third O- An upper portion of the first groove portion is formed with a coupling hole for engaging with the upper cover,

In addition, the lower outer diameter is composed of a coupling portion having a through hole.

Since the present invention has the above-described structure, the manufacturing process is simplified compared to the prior art, so that the cost and time required for production are saved, thereby improving the market economy.

1 is a perspective view of the present invention.
2 is a sectional view taken along the line AA in Fig.
3 is an exploded sectional view of Fig.
4 is a state diagram of the present invention.
Fig. 5 is a second embodiment of the present invention. Fig.
6 is a sectional view taken along line BB of Fig.
Fig. 7 is a second embodiment of the present invention. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the present invention, it is to be understood that the defined terms are defined in consideration of the functions of the present invention, and they may be changed according to the intention or custom of the technician working in the field. Therefore, It should be down.

A glass member 21 is provided under the " C "-shaped inner portion 11, and the glass member 21 is provided in the upper portion of the inner surface of the view frame 10, A vertical portion 12 is formed to allow the second O-ring 22 to be inserted into the vertical portion 12, and an "" -shaped groove portion 13 is formed in the lower portion of the vertical portion 12,

The end of the above-mentioned "? "-Shaped groove 13 extends to an inner diameter and is provided with an elliptical latching jaw 14, and an inclined portion 15 inclined outward is formed under the latching jaw 14,

A first groove 16 is formed in the lower outer surface of the inclined portion 15 so that the third O-ring 23 can be inserted therein. An upper portion of the first groove 16 is engaged with a coupling hole 17 ),

The outer surface of the inclined portion 15 is formed with a coupling portion 31 having a through hole 30 therein.

In the present invention, the coupling structure of the upper cover can be divided into two.

First, it can be divided into a structure to be joined to the upper cover in an inner shape and a structure to be combined with the exposure type. A view frame 10 made of an inner joint structure will be described in detail with reference to FIGS. 2 and 3 attached hereto.

 The second O-ring 22 is fixed to the elliptical stop 14 formed at the end of the "-shaped groove 13 after the second O-ring 22 is mounted on the"-shaped groove 13 provided at the lower part of the inner diameter of the view frame 10 do.

The diameter a of the second O-ring 22 should be wider or equal to that of the " b "-shaped groove 13.

As described above, the second O-ring 22 is placed in the "B" -shaped groove portion 13, and then the glass member 21 is placed on the second O-ring 22

The diameter of the glass member 21 must be the same as the diameter of the vertical part 12 when the glass member 21 is placed on the vertical part 12 at the time of seating.

       The first O-ring 20 is inserted into the upper part of the glass member 21 and the upper part of the glass member 21 is inserted into the lower part of the first O-ring 20. The side surface of the glass member 21 is " Shaped inner portion 11 and is fixed.

The diameter of the first O-ring 20 should be equal to or larger than the diameter of the " C "

A third O-ring 23 is inserted into the first groove 16 formed at the lower outer circumference of the view frame 10 and a third O-ring 23 is inserted through the first groove 16 to be coupled with the lower cover 100 Holes 17 are provided.

The first O-ring 20 and the second O-ring 22 are provided for fixing the glass member 21 and the third O-ring 23 is for sealing when coupled with the lower cover 100.

In the exposed joint structure, the inner diameter structure of the view frame 10 is the same as the inner joint structure described above, but the outer diameter of the view frame 10 is different.

In the exposed joint structure, as shown in FIGS. 6 and 7, a coupling portion 31 having a through hole 30 is exposed at an outer diameter of the inclined portion 15 of the view frame 10.

When the view frame 10 of the exposed type coupling structure is engaged with the through hole 30 provided in the engaging portion 31, the view frame 10 is coupled using a fixing screw 40.

The above structure is advantageous in that the production and assembling time can be saved more than the conventional design.

10 View frames.
11 "C" shaped inner part.
12 Vertical section.
13 "b" shaped groove.
14 The jaw jaw.
15 inclined section.
16 First groove.
17 engaging ball
30 through holes
31 coupling portion

Claims (2)

A vertical portion is formed below the "C" -shaped inner portion so as to allow the glass member to be interposed, and a second O-ring is provided below the vertical portion, Quot; b "-shaped groove portion that can be inserted,
The end of the "b" -shaped groove portion extends to an inner diameter and is provided with an elliptical engaging jaw, and an inclined portion inclined outward is formed below the engaging jaw,
The viewframe structure of the magnetic compass according to claim 1, wherein a first groove portion is formed in the lower outer surface of the inclined portion so that the third O-ring can be inserted, and a coupling hole is formed in the upper portion of the first groove to engage with the upper cover.
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