KR200479340Y1

KR200479340Y1 - Sealing washer for fastening bolt

Info

Publication number: KR200479340Y1
Application number: KR2020140008219U
Authority: KR
Inventors: 서인학
Original assignee: 주식회사 로만씰아시아
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2016-02-02

Abstract

The present invention relates to a sealing washer for bolt connection which is inserted into a bolt and is capable of preventing moisture, liquid, and oil from flowing in from the inside and the outside, and is provided between a nut and a fastening member, A washer member having an insertion hole into which a bolt is inserted; And a packing member formed on the inner circumferential surface and the lower surface of the washer member for packing between the washer member and the nut and between the washer member and the fastening member.

Description

Sealing washer for fastening bolt

The present invention relates to a sealing washer for bolt connection, and more particularly, to a sealing washer for bolt connection which is inserted into a bolt so as to prevent moisture, liquid, and oil from flowing into and out of the bolt.

BACKGROUND ART [0002] Electrical and electronic devices are constructed by mounting a plurality of electrical and electronic parts performing a specific function on a printed circuit board on which circuit patterns are formed. Here, the electric and electronic devices are constructed by protecting a printed circuit board from an external environment, such as direct sunlight or moisture, and bolting a sealing washer to an opening of a housing provided with a printed circuit board for easy maintenance.

The sealing washer is installed on an oil-used part such as an automobile engine, etc., to prevent oil leakage.

Korean Patent No. 10-0202830 (registered on March 22, 1999) discloses a sealing washer for an automobile engine. According to the disclosed technology, a fastening hole is formed at the center and a support groove is formed at the bottom surface. The side surface of the support groove has a cap having an inclined surface inclined radially outwardly toward the lower side at a predetermined angle, And a rubber having a contact surface located on the same axial line and formed on an outer surface of the cap so as to be in close contact with an inclined surface of the cap and a stepped portion formed radially inwardly at a lower portion of the contact surface .

Korean Unexamined Utility Model Publication No. 20-1999-0002532 (published Feb. 19, 1999) discloses a sealing washer configured to receive and retain an O-ring provided to prevent moisture inflow through a fastened portion in fastening respective butted members . According to the disclosed technique, in pressing the O-ring to airtightly connect the members, the edge portion of the body is formed to extend downwardly around the ice.

In the conventional sealing washer for an automobile engine as described above, when the cap is subjected to a strong pressure, the rubber formed at the lower portion of the cap is pressed, and the shape of the cap is deformed. As a result, the sealing force of the sealing washer is lowered, so that moisture, leakage, and leakage are generated. Further, since the side surface of the rubber is formed flat, there is a problem that moisture, liquid, oil or the like flows into the threads of the bolt.

When the conventional sealing washer as described above is subjected to a strong pressure, the shape of the O-ring is deformed, and the shape of the sealing washer is also deformed, so that moisture, liquid, oil or the like flows into the gap between the deformed sealing washer.

Korean Patent No. 10-0202830 Korean Public Utility Model No. 20-1999-0002532

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a sealing washer for bolt connection in which a packing member is formed on an inner circumferential surface and a lower portion of a washer member.

According to an aspect of the present invention, there is provided a washer having a washer member, which is positioned between a nut and a fastening member and has an insertion hole into which a bolt for fastening the nut and the fastening member is inserted; And a packing member formed on the inner circumferential surface and the lower surface of the washer member for packing between the washer member and the nut and between the washer member and the fastening member.

In one embodiment, the washer member includes an insertion groove for inserting a lower portion of the packing member.

In one embodiment, the packing member includes: a first packing portion formed on an inner peripheral surface of the washer member; And a second packing part connected to the lower part of the first packing part in an outward direction and inserted into the insertion groove.

In one embodiment, the first packing part includes an interference part formed to be convex on an inner side surface and interfering with the outer surface of the bolt in close contact with the outer surface.

In one embodiment, the first packing portion is formed to protrude from the upper portion of the washer member and is formed so as to be slanted outward in order to match the height of the washer member when the fastener is fastened with the nut .

In one embodiment, the first packing portion is formed such that the upper surface closely contacting the lower portion of the nut is formed flat.

In one embodiment, the second packing portion is formed such that a lower surface that is in close contact with an upper portion of the fastening member is formed flat.

In one embodiment, the second packing portion has a width wider than a width of the first packing portion.

In one embodiment, the packing member is characterized by adhesive bonding with the washer member using an adhesive composition.

In one embodiment, the washer member is characterized by being formed of one of stainless steel, aluminum, and carbon steel.

According to the present invention, the packing member is formed on the inner circumferential surface and the lower surface of the washer member, so that the durability of the washer member and the packing member can be improved.

According to the present invention, by forming the interfering portion on one side of the packing member, the function of preventing the inflow of moisture, liquid, and oil can be improved.

According to the present invention, the washer member and the packing member are adhered to each other to be integrally formed, so that the coupling property can be improved and the prevention of loss can be achieved.

1 is a view for explaining a sealing washer for bolt connection according to one embodiment of the present invention.
Fig. 2 is a view for explaining the washer member and the packing member in Fig. 1 as an example. Fig.
FIG. 3 is a view for explaining the use state of the washer member and the packing member in FIG. 1;
Fig. 4 is a view for explaining the washer member and the packing member in Fig. 1 as another example. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described herein. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all such effects or merely include such effects.

The meaning of the terms described in this specification should be understood as follows.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular < RTI ID = 0.0 > terms " comprise " or "include" It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the relevant art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sealing washer for bolt connection according to an embodiment of the present invention will now be described in detail with reference to the drawings.

1 is a view for explaining a sealing washer for bolt connection according to one embodiment of the present invention.

Referring to FIG. 1, the bolt-joining sealing washer 10 includes a washer member 100 and a packing member 200.

The washer member 100 is disposed between the nut 102 and the fastening member 103 and has an insertion hole into which the bolt 101 for fastening the nut 102 and the fastening member 103 is inserted, And the packing member 200 is formed at the bottom.

In one embodiment, the washer member 100 can be inserted in close contact with the lower portion of the nut 102 and the upper portion of the fastening member 103.

In one embodiment, the washer member 100 may be formed in the form of a ring having an insertion hole for inserting the bolt 101 in the center thereof.

In one embodiment, the washer member 100 may be formed of one of stainless steel, aluminum, and carbon steel, which is a rigid material, to withstand strong pressure.

In one embodiment, the washer member 100 may be formed thick so that the shape of the washer member 100 is not deformed by excessive torque of the nut 102.

The packing member 200 is formed on the inner circumferential surface and the lower surface of the washer member 100 and packs between the washer member 100 and the nut 102 and between the washer member 100 and the fastening member 103, , To prevent the inflow of oil.

In one embodiment, the packing member 200 can be adhesively formed on the inner circumferential surface and the lower surface of the washer member 100 using a strong adhesive composition (e.g., THiXON, Chemlok, etc.) have.

In one embodiment, the packing member 200 may be formed of a resilient material (e.g., rubber, silicone, etc.).

In one embodiment, the packing member 200 may have a height that is greater than the height of the washer member 100. The packing member 200 is compressed by the nut 102 and the fastening member 103 to block the space between the washer member 100 and the nut 102 and between the washer member 100 and the fastening member 103 It can be sealed more firmly.

Unlike the structure in which the packing member is fitted to the lower portion of the conventional 'A' -shaped washer member, the bolt-connecting sealing washer 10 having the above- By forming the member 200, durability can be improved because the washer member 100 and the packing member 200 simultaneously receive pressure. In addition, since the washer member 100 and the packing member 200 are integrally formed by bonding together, it is possible to prevent the washer member 100 and the packing member 200 from being separated and lost .

Fig. 2 is a view for explaining the washer member and the packing member in Fig. 1 as an example. Fig.

2, the washer member 100 includes an insertion groove 104, and the packing member 200 includes a first packing portion 210 and a second packing portion 220.

The insertion groove 104 is formed in the lower portion of the washer member 100, and inserts the lower portion of the packing member 200.

The first packing portion 210 is adhered to the inner circumferential surface of the washer member 100 to prevent moisture, liquid, and oil from flowing between the nut 102 and the washer member 100.

The first packing portion 210 is formed to protrude from the upper portion of the washer member 100 to be pressed against the nut 102 and protrude when the nut 102 is fastened to the washer member 100 100 in order to match the height thereof. Therefore, even if the first packing portion 210 is compressed by the nut 102, the nut 102 can be closely contacted with the washer member 100 while naturally spreading to the side.

In one embodiment, the first packing portion 210 may be flattened on the top surface to closely contact the flat bottom of the nut 102.

In one embodiment, the first packing portion 210 may include an interfering portion 230.

The interference part 230 is convexly formed on the inner surface of the first packing part 210 and interferes with the outer surface (thread) of the bolt 101 in close contact with the inner surface.

The first and second packing portions 210 and 220 are pressed and pressed by the nut 102 and the fastening member 103 so that the interference portion 230 is more convex, The interference portion 230 is in close contact with the inside of the groove of the thread of the bolt 101, so that it can be tightly closed.

The second packing part 220 is connected to the lower part of the first packing part 210 in the outward direction and is inserted into the insertion groove 104 so that moisture, , To prevent the inflow of oil.

In one embodiment, the second packing portion 220 may be flat formed on the bottom surface to come in close contact with the flat top of the fastening member 103.

In one embodiment, the second packing part 220 is formed to be wider than the width of the first packing part 210. This is because the sizes of the fastening holes formed in the fastening member 103 (fastening holes for fastening the bolts 101) are slightly different, so that the fastening member 103 having a relatively large fastening hole is also completely closed .

In one embodiment, the second packing part 220 may be formed at an angle of 90 degrees below the first packing part 210.

The packing member 200 having the above-described structure can improve the function of preventing the inflow of moisture, liquid, and oil through the threads of the bolt 101 by forming the interference portion 230 on the inner side.

FIG. 3 is a view for explaining the use state of the washer member and the packing member in FIG. 1;

3, the upper part of the first packing part 210 is compressed by the nut 102 so that the first packing part 210 spreads laterally and the second packing part 220 The second packing part 220 spreads laterally. Accordingly, the interference portion 230 is convex toward the bolt 101 while being pressed, and is also closely contacted between the grooves of the outer surface (threaded portion) of the bolt 101. Therefore, the bolt-joining sealing washer 10 can firmly prevent the inflow of moisture, liquid, and oil from the inside and the outside. Since the upper portion of the first packing portion 100 protruded to the upper portion of the washer member 100 is formed to slant outwardly when the first packing portion 210 is fastened to the nut 102, The outer portion of the washer member 100 spreads to the washer member 100 and becomes equal to the height of the washer member 100 so that the washer member 100 and the nut 102 can be further compressed. When the second packing part 220 is fastened to the fastening member 103 and the second packing part 220 spreads laterally and the washer member 100 packs the fastening members 103, Since the washer member 100 and the fastening member 103 do not directly bump into each other, the risk of damage can be reduced and buffering can be performed.

Fig. 4 is a view for explaining the washer member and the packing member in Fig. 1 as another example. Fig.

4, the washer member 100 includes an insertion groove 104 and a projection 105. The packing member 200 includes a first packing portion 210, a second packing portion 220, An interference portion 230, and a groove 201. Here, since the insertion groove 104, the first packing part 210, the second packing part 220, and the interference part 230 are similar to those of FIG. 2, description thereof will be omitted, Explain.

The protrusions 105 are formed in the insertion groove 104 in a plurality of protrusions and are inserted into the grooves 201 to fix the packing member 200.

In the embodiment, the protrusion 105 is formed only in the insertion groove 104 in the drawing, but may also be formed on the inner circumferential surface of the washer member 100.

The groove 201 is formed on the upper portion of the second packing portion 220 at a position opposite to the projection 105 and is fixed by inserting the projection 105 thereinto.

In one embodiment, the groove 201 may be formed to be equal to or smaller than the shape and size of the projection 105.

The washer member 100 and the packing member 200 having the above-described structure are bonded to each other by the protrusions 105 and the grooves 201, so that the gap between the washer member 100 and the packing member 200 becomes an adhesive It can be bonded even when it is not formed, and can be more firmly bonded even when it is formed of an adhesive.

Although the embodiments of the present invention have been described in detail, the scope of the present invention is not limited thereto, and various modifications and improvements of the person skilled in the art using the basic concept of the present invention, which is defined in the following claims, It belongs to the scope of right.

10: Sealing washer for bolt connection
100: washer member
101: Bolt
102: Nut
103: fastening member
104: insertion groove
105: projection
200: packing member
201: Home
210: first packing part
220: second packing portion
230:

Claims

A washer member positioned between the nut 102 and the fastening member 103 and having an insertion hole into which the bolt 101 for fastening the nut 102 and the fastening member 103 is inserted; And
A packing member 200 for packing between the washer member 100 and the nut 102 and between the washer member 100 and the fastening member 103 is formed on the inner circumferential surface and the lower surface of the washer member 100, ),
The washer member (100)
And an insertion groove (104) for inserting a lower portion of the packing member (200)
The packing member (200)
The washer member 100 is formed on an inner circumferential surface of the washer member 100 so as to protrude upward from the washer member 100 and protrude when the washer 102 is fastened to the washer member 100 to the outside A first packing part 210 formed to be inclined; And
And a second packing part (220) connected to the lower part of the first packing part (210) in an outward direction and inserted into the insertion groove (104).

delete

2. The apparatus of claim 1, wherein the first packing part (210)
And an interference portion (230) formed to be convex on an inner side surface and interfering with the outer surface of the bolt (101) in intimate contact with the bolt (101).

delete

2. The apparatus of claim 1, wherein the first packing part (210)
Wherein the upper surface of the nut (102) is in flat contact with the lower surface of the washer.

3. The apparatus of claim 1, wherein the second packing part (220)
Wherein a lower surface of the fastening member (103) which is in close contact with an upper portion of the fastening member (103) is formed flat.

3. The apparatus of claim 1, wherein the second packing part (220)
And a width of the first packing portion (210) is greater than a width of the first packing portion (210).

2. The apparatus of claim 1, wherein the packing member (200)
Characterized in that an adhesive composition is used to bond the washer member (100) to the washer member (100).

2. The washer assembly (100) according to claim 1, wherein the washer member (100)
Characterized in that the bolt is formed of one of stainless steel, aluminum, and carbon steel.