KR200225575Y1 - Nut assembly - Google Patents

Abstract

The present invention is directed to nut assemblies used in the fixing art.

The present invention is an expansion member; And a body portion having an inlet end into which a bolt element is inserted at one end and an axially cutout portion at the other end thereof, the anchor assembly supporting and fixing the bolt element, the spring supporting and fixing the bolt element. The anchor body includes an inclined portion having an inclination angle formed to support one end of the spring inside the bolt element insertion side and a larger cross-sectional area toward the other end of the body, and the other end on the other end in the axial direction to support the expansion member. An extended end radially expanded or contracted and provided with the longitudinal cutout, an inner wall formed from the inclined part toward the extended end to position the spring and the expansion member, and formed between the inner wall and the extended end A neck is provided and the spring is subjected to an external force toward the inlet end The inner cross-sectional area of the contact surface of the spring in contact with the inclined portion is reduced, and when the expansion member is moved in the direction of the extended end by the external force to provide a nut assembly configured to extend the extended end radially.

Description

Nut Assembly {NUT ASSEMBLY}

The present invention relates to a nut assembly used in the fixing art, and more particularly to a nut assembly that allows for fastening or fastening in a simple manner.

In the fixing of anchors and fastening of bolt elements, this type of anchor is conventionally described in Korean Patent Laid-Open Publication No. 1999-029991 for fixing anchors to holes in walls or ceilings and fastening bolt elements to anchors. . In this prior art, a separate bush is used to penetrate the expansion member radially away from the shaft at an extended end with an opening for inserting the anchor into a hole in the wall or ceiling, and also with anchor and bolt elements. The anchor is provided with a screw thread for coupling. In this conventional technique, a separate bush is used to hold the expansion member in the anchor body, and a screw thread is provided on the anchor body for coupling the anchor and the bolt element, and the bolt element is rotated on the screw to be fastened. In this case, the assembly time for fastening the bolt element to the anchor body becomes long.

The present invention has been made to solve the above problems, the object of the present invention is to easily fasten the bolt element to the anchor and to shorten the fastening time and to prevent the separation of the expansion element in the anchor and anchor anchor wall To provide a nut assembly using a simple fastening method with the bolt element in the anchor assembly that can be securely fixed to the.

1 is a partial cross-sectional perspective view of an anchor assembly according to the present invention.

2 is a perspective view of each of the parts of the anchor assembly according to the present invention;

Figure 3 is a partial cross-sectional view showing a state in which the bolt element is coupled to the anchor assembly in accordance with the present invention.

Figure 4 is a partial cross-sectional perspective view of the nut assembly according to the present invention. Figure 5 shows another example of the nut assembly of Figure 4;

<Description of main parts of drawing>

10: anchor body 11: inlet end

12: inclined portion 18: gap portion

19: extension end 20: spring

30 expansion member 40 bolt element

50: nut body 51: inlet end

60: locking part

The anchor assembly of the present invention includes an expansion member; And a body portion having an inlet end into which a bolt element is inserted at one end and an axially cutout portion at the other end thereof, the anchor assembly supporting and fixing the bolt element, the spring supporting and fixing the bolt element. The anchor body includes an inclined portion having an inclination angle formed to support one end of the spring inside the bolt element insertion side and a larger cross-sectional area toward the other end of the body, and the other end on the other end in the axial direction to support the expansion member. An extended end radially expanded or contracted and provided with the longitudinal cutout, an inner wall formed from the inclined part toward the extended end to position the spring and the expansion member, and formed between the inner wall and the extended end A neck is provided and the spring is subjected to an external force toward the inlet end It is characterized in that the inner cross-sectional area of the contact surface of the spring in contact with the inclined portion is reduced, the extension end is radially unfolded when the expansion member is moved toward the extension end by the external force.

The anchor assembly of the present invention includes an anchor body, a spring, and an expansion member. The anchor body has a bolt element inserted at one end thereof, an inlet portion for supporting the spring, an intermediate portion including an inner wall for receiving the spring and the expansion member, and an anchor assembly in a hole, such as a wall, and the release of the expansion member. It is composed of a fixed portion formed on the other end to prevent. The inlet portion has an inlet in which the bolt element is inserted and an inclined portion formed therein so that the cross-sectional area is increased toward the center of the body near the inlet. The spring is inserted into the inlet side and the expansion member is located on the fixing side. The fixing part has a neck at an end of the inner wall, and is provided with an extending end radially expanded or contracted in the other end of the shaft in the neck and provided with the cutout, and the extending end is in the other end of the neck in the axial direction. The thickness can be thicker.

The anchor assembly of the present invention is assembled and used in the following order.

The anchor body is manufactured with a cutout formed. In the anchor body manufactured, the spring is first inserted in the direction of the inclined portion at the extended end, and then the expansion member is inserted. The extended end is contracted to prevent the spring and the expansion member from being separated from the body.

In the assembled anchor assembly, the extension end is inserted radially with respect to the longitudinal axis by the expansion member when the extension end is inserted into a hole in a wall or the like and the expansion member is moved to the extension end by an external force by a hammer or other tool. It will unfold. Then the anchor assembly is fixed to the hole such as a wall by the extension end and the expansion member.

The bolt element is then inserted into the inlet of the anchor assembly and is in contact with the spring and the spring is positioned between the thread and the valley of the bolt element. Afterwards, when the bolt element moves back to the inlet side, the spring is in contact with the inclined portion, the contact inner area of the spring is reduced, and when the bolt element is in close contact with the valley of the bolt element, the bolt element is fixedly supported like a female screw of a general nut. . Preferably the spring is to use a common coil spring. In addition, the spring is pressed when the expansion member is supported, so that the expansion member cannot be released through the inlet or the fixing portion, and the fixing member is held by the spring even when the anchor assembly is fixed to the wall, so that the anchor itself is more reliably. Can be fixed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial cross-sectional perspective view of an anchor assembly according to the present invention, showing the assembled state of each component of the anchor assembly.

Figure 2 is a perspective view of each of the components of the anchor assembly according to the present invention, showing the state before the components of the anchor assembly are assembled.

3 is a partial cross-sectional view showing a state in which the bolt element 40 is coupled to the anchor assembly according to the present invention, showing how the bolt element 40 is fastened and fixed by the spring 20 and the inclined portion 12. .

4 is a partial cross-sectional perspective view of the nut assembly according to the present invention.

1 and 2 is a preferred embodiment according to the present invention, first in Figure 1, the anchor body 10 is provided with an inlet end 11 is inserted into the member 40 is a bolt or male thread at one end, Near the inlet end 11 is provided with an inclined portion 12 is formed in a conical shape in the diameter of the other end in the axial direction. The inner end 13 of the inclined portion 12 has a larger diameter and ends in a cylindrical direction toward the other end of the shaft, and the neck 17 formed in the other end of the inner wall 13 in the axial direction. This is provided on the anchor body 10. It is also provided with an extension end 19 which can be radially expanded or contracted in the other axial direction of the neck 17 and one or more cutouts 18 formed axially towards the extension end 19. . The extension end 19 is axially increased in thickness at the neck 17 so that the other end of the extension end 19 is larger than the cross-sectional area of the neck 17 with the anchor assembly assembled as shown in FIG. 1. The cross section is small.

A coil spring 20 is inserted into the inner wall 13 of the anchor body 10, the diameter of the outer diameter is larger than the inlet end 11, the diameter of the inner diameter is the same as or more than the inlet end 11. Small and larger than the rib diameter of the bolt element 40 and smaller than the outer diameter.

The expansion member 30 has a larger diameter in the inlet axial direction than the inner diameter of the coil spring 20, and a diameter in the extended end direction is a truncated cone shape smaller than the diameter in the inlet axial direction, so that the coil spring 20 and the anchor body ( It is inserted between the extending ends 19 of 10 so that the departure is prevented by the extending end 19.

In FIG. 2, the anchor body 10 is formed before the coil spring 20 and the expansion member 30 are inserted into the extension end so that the coil spring 20 and the expansion member 30 can be inserted therein. (19) is radially unfolded on the longitudinal axis.

Therefore, as shown in FIG. 2, each component of the anchor assembly is manufactured, and through the extending end 19 of the anchor body 10, the coil spring 20 is first inserted and then the expansion member 30 is Is inserted. And finally, when the extended end 19 is contracted radially in the central axis direction by the external force, the anchor assembly is completed.

In this embodiment, the extension end 19 of the anchor assembly is inserted into a hole in a wall or the like, and the expansion member 30 is subjected to an external force by a hammer or a pin or other tool to the extension end side 19 in the longitudinal direction. When moved the expansion member 30 causes the extended end 19 to expand radially about the longitudinal axis. The extended end 19 then anchors the anchor assembly to a hole, such as a wall.

Then, when the bolt element 40 is inserted into the inlet end 11 of the anchor assembly, the contact is inserted into the coil spring 20 while the bolt element 40 is in contact with one surface of the expansion member 30, The coil spring 20 is positioned between the thread and valley of the bolt element 40. In this case, referring to FIG. 3, when the bolt element 40 is rotated about 1 to 2 turns to the right in the case of the right screw and to the left in the case of the right screw, the coil spring 20 is connected to the thread of the bolt element 40. It is located approximately. Thereafter, when the bolt element 40 moves again toward the inlet end 11, the coil spring 20 moves together to the inclined portion 12. Then, the inner diameter of the coil spring 20 in contact with the inclined portion 12 is reduced and further compressed to the valley of the bolt element 40 and the coil spring 20 is coupled to the bolt element 40. . At this time, the inlet end 11 side end of the coil spring 20 is located between the threaded portion of the bolt element 40 and the inclined surface of the inclined portion 12 to prevent the bolt element 40 from being separated. Thus, the bolt element 40 is coupled to the anchor assembly by the coil spring 20 as a general nut is engaged with the bolt element.

A second embodiment according to the present invention will now be described in detail with reference to FIG. 4.

The nut assembly has a configuration similar to the anchor assembly of FIG. 1. That is, it is the same configuration except that the expansion member 30 is not used in the anchor assembly. In order for the nut body 50 to be used as a nut, the length is determined according to the user's desired purpose, and the inner wall 53 may be adjusted according to the length of the spring because the inner wall 53 needs to receive only the spring unlike the inner wall of the anchor assembly. In other words, the inlet and the middle and the fixing portion of the anchor body 10 is used as it is. However, the extended end 19 is not expanded because there is no expansion member 30 during use. Therefore, the fixing part serves as the locking part 60 in the nut assembly. However, since the locking portion 60 is not always manufactured in the same structure as the extended end 19 of the anchor assembly and does not allow the inner spring to escape, it can be used as a nut assembly by using a ring or other known suitable means. Therefore, it is possible to make the projection or caulking process without using a separate member in the locking part 60 so that the spring can be inserted by rotation like a male screw, but not separated by the expansion force.

The nut assembly of the present invention includes a spring 20 and a nut body 50 for holding and supporting the bolt element. The nut body 50 has an inlet end 51, and an inclined portion 52 having an inclined angle formed so as to have a cross-sectional area extending in the direction of the other end of the shaft near the inlet end 51, and the inclined portion 52 being axially inclined. An inner wall 53 formed in the other end direction, and an neck 57 formed in the axially opposite end direction of the inner wall 53, and an extended end 59 that can be radially expanded or contracted in the other end direction of the axial direction from the neck 57. And one or more cutouts 58 formed axially towards the extended end 59.

In the nut assembly, the spring (20) is inserted into the inner wall (53) of the nut body (50) and is prevented from being separated by the locking portion (60), the cross-sectional area of the inclined portion (52) in a direction less When the spring 20 receives an external force, the internal cross-sectional area of the contact surface of the spring 20 in contact with the inclined portion 52 is reduced. The locking portion 60 has a structure similar to the fixing portion of the anchor body 10 of the anchor assembly. In addition, unlike the fixing part, the locking part 60 may serve the same role by simply having a caulking or protrusion.

In addition, as in the case of the anchor assembly, the bolt member 40 and the closing member 70 for closing one end of the nut body 50 at the same time constitutes a support portion of the spring 20 to the nut body 50 After insertion, the locking portion 60 may be formed by caulking (see FIG. 5).

Effects of the anchor assembly and nut assembly according to the present invention made as described above are as follows.

First, in the anchor assembly of the present invention, the anchor assembly can be easily and reliably fixed to a hole such as a wall. And the process and time of fastening and engaging the bolt element to the anchor assembly is very short.

Second, in the nut assembly of the present invention it is possible to simply fasten the bolt element.

On the other hand, the cross-sectional outer shape of the anchor body and the nut body may be configured in a polygonal shape so that the fastening force by the clamping mechanism or the like can be more effectively transmitted or supported.

Thus, the improved anchor assembly and nut assembly provides a simple, effective, safe, low cost, efficient device that accomplishes all listed purposes, provides for the elimination of the difficulties encountered by the preceding device, solves problems, Get new results in the art.

In the foregoing description, specific terms have been used for brevity, clarity, and understanding, but unnecessary limitations are not implied beyond the requirements of the prior art as these terms are intended to be broadly described and used for technical purposes.

Moreover, the description and illustration of the subject innovation are made by way of example and the scope of the subject innovation is not limited to the exact details shown or described.

If the features, findings and principles of the present invention are now described, new and useful results of the manner in which the combination of the monitoring device and the patch are constructed and used, the features of the constructs and the advantages are obtained: new and useful structures, devices, elements, Arrangements, parts, combinations and methods are described in the appended claims.

Claims (6)

A nut assembly having an inlet end into which a bolt element is inserted at one end, A spring for fixing and supporting the bolt element and an inclined portion formed with an inclination angle such that the cross-sectional area is increased in the other end of the shaft near the inlet end portion, and an inner wall formed from the inclined portion toward the other end of the shaft, and formed on the other end of the inner wall in the axial direction; And a nut body having a catch portion, wherein the spring is inserted into the inner wall of the nut body and is prevented from being separated by the locking portion, and the inclined portion when the spring is subjected to an external force in a small cross-sectional area of the inclined portion. And the inner cross-sectional area of the contact surface of the spring in contact with the nut is reduced. 2. The nut assembly of claim 1 wherein said lock portion is provided with an outlet end at an end of said lock portion to allow a bolt or threaded member to pass therethrough. The neck according to claim 1 or 2, wherein the locking portion is formed in the other end of the inner wall in the axial direction, an extended end that can be radially expanded or contracted in the other end of the neck in the axial direction, and an axis toward the extended end. At least one cutout formed in a direction. The nut assembly according to claim 1 or 2, wherein the locking portion is provided with a protrusion so that the spring can be passed by rotation. The nut assembly according to claim 3, wherein the protrusion is caulked. 3. The coil spring of claim 1 or 2, wherein the spring has an outer diameter greater than the inlet end, the inner diameter being greater than or equal to the inlet end and greater than the rib diameter of the bolt element and less than the outer diameter. Nut assembly, characterized in that.