KR101714646B1 - Nut For Assembling Gasket - Google Patents

Abstract

The present invention relates to a nut for assembling a gasket, comprising: a nut body having a screw hole and an insertion hole, wherein the screw hole is penetrated and formed in a thickness direction and coupled to a bolt, wherein the insertion hole is penetrated and formed in the thickness direction on a position of being spaced in a direction of a diameter from the screw hole, and has a screw groove formed on an inner circumferential surface; and a spacing bar screw-coupled to the insertion hole having one end with a coupling groove capable of being coupled to a rotation means and the other end possible protruding from the insertion hole while being rotated, wherein the insertion hole may be penetrated and formed in such a manner where a direction of a central axial line of the insertion hole is inclined based on a direction of a central axial line of the screw hole. Accordingly, the present invention aims to provide a nut to assemble a gasket to make a space between a nut and components, or between a nut and a washer in a coupling structure where a washer is interposed; thereby enabling the nut to easily be dismantled.

Description

Nut For Assembling Gasket [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut that can be used for assembling a gasket, and more particularly, to a nut for assembling a gasket that is easily separated when a bolt is tightened with a nut and then separated.

Bolts and nuts are used to assemble components, such as gaskets, to the mounting locations. The bolts and nuts used may be manufactured to be large in correspondence with the size of the gasket.

The bolts and nuts used to assemble parts are subject to damage such as rusting or breakage due to long-term use. Damaged bolts or nuts may be used for safety or durability in the use of products or structures equipped with the parts. , Should be replaced in a timely manner. Or if it is necessary to repair or replace the assembled parts themselves, the bolts and nuts must be unclamped to separate the assembled parts.

The bolts or nuts must be easily separable so that the disassembly of the bolts and nuts can be carried out quickly. However, decomposition is often not easy depending on the state of separation.

Particularly, when the bolts and nuts are fastened by an external force more than necessary when the first fastening is performed, when a very large frictional force and tightening force are exerted between the bolt or nut and the part body and the washer interposed therebetween, It is not easy to rotate.

If bolts or nuts are rusted, or if the assembled parts have been painted, the bolts or nuts and washers are also painted with paint.

To solve this problem, development of bolts or nuts that are easy to separate is proceeding. For example, Korean Patent Laid-Open Publication No. 10-2012-0082781 entitled " Dice grooved nuts "

In the known nut body widely used throughout the industry, the nut shown in the above patent is characterized in that the inner peripheral edge of the threaded portion formed on the nut body and the outer peripheral portion of the nut body formed on either the upper surface or the lower surface portion of the nut body Discloses a nut body made of a plurality of comb teeth-shaped ditches penetrating a certain depth in a direction in which a nut body is unwound.

The above-mentioned patent discloses that even when the bolt and the nut are firmly fastened to each other by forming the die groove as described above, the nut is loosened and the screw thread of the bolt is processed by the die groove of the upper surface portion or the lower surface portion of the nut, This provides the advantage of being able to proceed more quickly.

However, the disassembly of bolts and nuts fastened to the nuts disclosed in the above patent is not effective, and it is necessary to develop an improved nut which can more easily disassemble the bolts and nuts.

The present invention has been made in order to solve the problems of the above-mentioned conventional component mounting nuts. In the fastening structure in which the nut and the washer are interposed therebetween, the nut and the washer are separated from each other, To provide an assembly nut.

A nut for assembling a gasket according to an embodiment of the present invention includes a screw hole which is formed in a thickness direction and through which a bolt can be screwed and a nut having an insertion hole penetrating in a thickness direction at a position spaced apart from the screw hole in a radial direction And a spacing bar which is threadedly coupled to the insertion hole and has an engaging groove formed at one end thereof and engageable with the rotating means, and the other end of which is rotatable so that the other end can project into and out of the insertion hole, And the center axial direction is formed so as to have an inclined direction with respect to the central axial direction of the screw hole.

In the nut for assembling the gasket according to the embodiment of the present invention, the insertion holes may be formed by a plurality of spaced apart in the circumferential direction.

In the nut for assembling a gasket according to an embodiment of the present invention, two adjacent insertion holes of the plurality of insertion holes are formed so that one of the insertion holes is closer to the screw hole from one end to the other end thereof, So as to move away from the screw hole.

The shortest distance from the center of the one end of the insertion hole to the center axis of the screw hole and the shortest distance from the center of the other end of the insertion hole to the center axis of the screw hole are equal to each other .

In the nut for assembling a gasket according to an embodiment of the present invention, an external force is applied to the spacer bar so that the projecting pin projecting from the spacer can be penetrated.

According to the present invention, the spacing bar separates the nut body from the other member in contact with it, thereby greatly reducing the frictional force acting on the nut body, thereby facilitating the disassembly of the nut.

Further, since the center axial direction of the insertion hole is formed in a direction inclined with respect to the center axial direction of the screw hole, even if a smaller rotational force is applied to the spacing bar, the nut body can be easily separated from other contacted members, Loses.

1 is a view illustrating a nut for assembling a gasket according to an embodiment of the present invention;
Fig. 2 is a sectional view of the nut for assembling the gasket shown in Fig. 1,
FIG. 3 is a view showing the use state of the gasket assembly nut shown in FIG. 1,
FIG. 4 is a view showing a state where the separating bar of the nut for assembling the gasket shown in FIG. 3 is rotated,
5 is a view showing another example of an insertion hole,
6 is a view showing another example of the insertion hole.
FIG. 7 is a view showing a structure in which protruding fins are formed on the spacing bar shown in FIG. 2. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION A nut for assembling a gasket according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a gasket assembly nut shown in FIG. 1, and FIG. 3 is a view illustrating a state of use of the gasket assembly nut shown in FIG. 1; FIG. 4 is a view showing a state in which the spacing bar of the nut for assembling the gasket shown in FIG. 3 is rotated, FIG. 5 is a view showing another example of the insertion hole, and FIG. 6 is a view showing another example of the insertion hole .

1 and 2, a nut 1 for assembling a gasket according to an embodiment of the present invention includes a nut body 100 and a spacing bar 200.

The nut body (100) has a screw hole (110) formed at the center thereof in a thickness direction of the nut body (100). The bolts 53 (see Figs. 3 and 4) can be engaged through the screw holes 110. Fig.

The nut body 100 has an insertion hole 120 formed in a thickness direction of the nut body 100 at a position spaced apart from the screw hole 110 in the radial direction. The insertion hole 120 is formed with a thread groove on the inner circumferential surface thereof, and a spacing bar 200 to be described later is screwed through the insertion hole 120.

The insertion holes 120 may be formed as a plurality of spaced apart from each other in the circumferential direction around the screw holes 110. FIG. 1 shows a nut body 100 having three insertion holes 120 spaced apart at regular intervals along the circumferential direction. However, the illustrated example is merely an example, and the nut body 100 may have fewer or more insertion holes 120 than the illustrated example.

The spacing bar 200 may be threaded on the outer circumferential surface and screwed into the insertion hole 120. 1, a coupling groove 210 is formed at one end of the spacing bar 200 so that a rotating means (not shown) such as a screwdriver can be coupled to the coupling groove 210.

The spacing bar 200 is rotated in accordance with the rotation of the rotating means coupled to the engaging groove 210. The other end of the spacing bar 200 can be projected into and out of the insertion hole 120 from the insertion hole 120 according to the rotation. That is, the spacing bar 200 may be positioned in the insertion hole 120 or protrude from the insertion hole 120 to the outside of the nut body 100.

The use state of the gasket assembly nut 1 will be described with reference to FIGS. 3 and 4. FIG.

As shown in FIG. 3, the nut 1 for assembling the gasket is coupled with the bolt 53 so that the fixed members 51 and 52 such as gaskets are fixed to each other. At this time, a washer 54 may be interposed between the nut 1 and the fixed member 52.

When the bolts and nuts are to be disassembled in this state, one of the bolts or the nuts is fixed so as not to be rotated and the other is disassembled by rotating in the direction opposite to the engaging direction.

However, it is not easy to disassemble the bolts and nuts if they are combined with too large rotational force, or if each of the nuts, washers, and bolts, or the contact portions of these nuts, . In some cases, the paint is applied to these images to increase the adhesive strength of the paint, which may make decomposition more difficult.

The nut body 100 and the contact surface of the washer 54 are spaced apart from each other when the nut body 100 and the fixed member 52 are in contact with each other or when the washer 54 is interposed therebetween, So that the frictional force between the contact surfaces can be reduced.

The spacing bar 200 functions to separate the contact surfaces of the nut body 100 and the washer 54 from each other. 4, the other end of the spacing bar 200 protrudes from the insertion hole 120 in accordance with the rotation of the spacing bar 200, and the nut body 100 and the washer 54 The gap G is generated.

In the bar shown, the gap G is exaggerated somewhat, and the actual gap G may be very fine. The plurality of spacing bars 200 disposed along the circumferential direction are spaced apart from each other by the rotation of the nut body 100 and the washer 54 so that the nut body 100 and the washer 54 ) Is greatly reduced.

Even when painting is performed, the distance between the nut body 100 and the washer 54 is largely reduced, thereby greatly reducing the adhesive force by the paint.

When the separating bar 200 is retracted to be inserted into the insertion hole 120 after the above process is performed and then the nut body 100 is rotated in the disassembly direction, The nut body 100 can be rotated so that the nut 1 can be easily disassembled.

The center axis direction of the insertion hole 120 may be parallel to the center axis direction of the screw hole 110. Figs. 1 to 4 show examples of such a structure.

Or the direction of the central axis of the insertion hole 120 may be formed to be inclined with respect to the direction of the central axis of the screw hole 110. [ The spacing bar 200 inserted into the insertion hole 120 is protruded in an inclined direction with respect to the center axial direction of the screw hole 110 so that the nut body 100 is engaged with the engaged washer 54, In the direction perpendicular to the contact surface direction.

1 to 4, the nut body 100 and the washer 54 can be spaced apart from each other even if a smaller rotational force is applied to the spacing bar 200. As a result, Disassembly is easier.

A specific example of the structure of the nut 1 thus formed is shown in FIGS. 5 and 6. FIG.

5, the two adjacent insertion holes 120 of the plurality of insertion holes 120 are arranged in a direction inclined with respect to the central axial direction of the screw holes 110, One of the two insertion holes 120 is formed so as to approach the threaded hole 110 as it goes from one end to the other end, and the other one of the two insertion holes 120 is formed through the threaded hole 110 as it goes from one end to the other end. And may be formed so as to be spaced apart.

The two adjacent insertion holes 120 are formed in such a way as to be offset from each other such that the spacing bars 200 inserted into the two insertion holes 120 are inclined with respect to the central axial direction of the screw holes 110 And can be projected in mutually offset directions.

Even if a small force is applied to the spacing bar 200 by projecting or simultaneously projecting the adjacent spacing bars 200 in such a manner that the adjacent spacing bars 200 protrude in the direction opposite to each other in order to disassemble the nut 1, The nut 1 can be easily separated from the contact surface and the nut 1 can be easily disassembled.

6, the insertion hole 120 has a shortest distance from the central point of one end of the insertion hole 120 to the central axis of the screw hole 110 and the shortest distance from the center point of the other end of the insertion hole 120 The shortest distance from the center axis of the screw hole 110 to the center axis of the screw hole 110 may be the same.

When the insertion hole 120 is formed as described above, the penetration direction of the insertion hole 120 becomes close to the circumferential direction around the center axis of the screw hole 110, The nut body 100 receives a force in a direction close to the rotation direction in which the nut 1 is disassembled so that even if the rotational force by the rotating means applied to the spacing bar 200 is smaller, (100) can be easily separated from the contact surface.

7, the protruding pin 201 may be inserted into the spacing bar 200 coupled to the nut body 100, as shown in FIG. This projecting pin 201 applies an external force in the longitudinal direction of the projecting pin 201 to the upper surface of the projecting pin 201 exposed through the upper surface of the nut body 100 so that another pin member And can be protruded to the outside of the spacing bar 200 and to the bottom surface of the nut body 100 by hitting by using a hitting means such as a hammer in a contact state.

The operation of projecting the projecting pin 201 in this manner prior to rotating the spacing bar 200 may be performed by finely separating the lower face of the nut body 100 and the washer 54, By rotating the spacer 200, it is possible to rotate the spacer 200 more easily.

Alternatively, in the case where the mutual engagement force of the bolt and nut is too strong or the frictional force between the contact surfaces is too great and the rotation of the spacing bar 200 is not easy, the projecting pin 201 is spaced apart from the spacer 200, . In this case, only the projecting pin 201 is projected to separate the nut body 100 from the washer 54, and then the bolt 1 can be separated.

A plurality of grooves (not shown) may be formed on the outer circumferential surface of the protruding fin 201 to reduce the area of friction between the outer surface of the protruding fin 201 and the inner surface of the spacing bar 200, Can be more easily protruded.

The embodiments according to the present invention have been described in detail above. It should be noted that the above-described embodiments illustrate preferred embodiments of the present invention and the present invention is not limited to the above-described embodiments. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: nut 100: nut body
110: screw hole 120: insertion hole
200: spacing bar 201: projecting pin
210: coupling groove

Claims (5)

A nut body (100) having a screw hole (110) formed in a thickness direction and through which a bolt can be screwed and an insertion hole (120) penetrating in a thickness direction at a position spaced from the screw hole in a radial direction; And
And a spacing bar (200) screwed into the insertion hole (120) and rotatable so that the other end can protrude and retract from the insertion hole (120)
The insertion holes 120 are formed in a plurality of spaces spaced apart from each other in the circumferential direction so that the center axis direction of the insertion holes 120 is formed to be a through hole shape so as to be inclined with respect to the central axial direction of the screw holes 110 And,
The two most adjacent insertion holes of the plurality of insertion holes 120 are formed to penetrate in parallel directions that do not meet with each other. One of the insertion holes is formed so as to approach toward the screw hole 110 from one end to the other end, And is formed so as to move away from the screw hole 110 from one end to the other end,
The protruding pins 201 protruding from the spacing bar 200 are inserted into the spacing bar 200 through an external force so that the protruding pins 201 are connected to the outer surface of the protruding pin 201 and the outer surface of the protruding pin 201 200), wherein a plurality of grooves are formed so as to reduce a friction area between the inner surfaces of the grooves (200, 200). The method according to claim 1,
Wherein the separating bar (200) has an engaging groove (210) formed at one end thereof to be engageable with the rotating means. delete delete delete

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