KR102073731B1 - Hybrid protection cap using lock spring - Google Patents

Abstract

According to the present invention, a hybrid protection cap using a lock spring comprises: a lower cap installed to enclose the outer surface of a nut of a nut coupling unit; an upper cap coupled to the upper end of the lower cap to enclose a bolt protruding above the nut in a dome shape; and a lock spring installed in the upper cap and helically coupled to the screw threads of the bolt to prevent the nut from loosening. The present invention providing the structure manufactures the protection cap by separating the lower cap, the upper cap, and the lock spring to be manufactured into customized assembly in advance or assembled and constructed at a site so that the upper cap can be exchanged in accordance with a bolt coupling state (protruding length of a bolt) at the site. The lower cap directly receiving an external force by a coupling tool can be made of a metallic material with strong durability and the upper cap relatively easy to replace can be made of a synthetic resin material, so that the manufacturing costs can be lowered. Moreover, disassembly of the structure is possible by opening a bolt coupling unit after separating the upper cap and the lower cap to disassemble the lock spring and the lower cap from the bolt coupling unit. In addition, the present invention prevents nut loosening to prevent an accident by structure separation, protects the nut coupling unit from exposure to the outside and water infiltration to finish the exterior of the nut coupling unit well and also prevent corrosion to extend the service life, and installs a nightglow pad identifiable even at night on the outer surface of the protection cap to prevent an accident or the like.

Description

Hybrid protective cap using lock springs {HYBRID PROTECTION CAP USING LOCK SPRING}

The present invention relates to a hybrid protective cap using a lock spring, and more particularly, a lock spring coupled to a screw thread of an anchor bolt is installed inside a protective cap installed to prevent corrosion of the nut fastening portion. The present invention relates to a hybrid protective cap using a lock spring to simultaneously have an anti-loosening and protective function of a nut fastening portion.

In general, bolts and nuts used as a means for fastening a structure, such as anchor bolts when the bolt is exposed to the outside, such as corrosion caused by rain, snow, or foreign matter deposition occurs, the night is because the bolt is protruding installed There was a problem that there is a risk that a safety accident occurs.

As an alternative to this problem, the technique of Registration Utility No. 20-0400249 is proposed.

The prior art, as shown in Figure 10, the nut receiving space (11) inside the body (10) to protect the bolt (2) and the nut (3) protruding from the mating surface by the nut (3) coupling A bolt nut protective cap having a bolt receiving space 12 (not shown in the drawing) communicating therewith, the anti-loosening bolt nut protective cap having a structure in which a bolt fastening thread 13 accommodated in an inner circumferential surface of the bolt receiving space 12 is formed. This is disclosed.

However, the above-described conventional technology requires a separate thread tap processing process for forming the bolt fastening screw thread 13 in the bolt receiving space 12, resulting in a problem that the product production cost increases, and the protective cap itself is Since it serves as a kind of nut there was a problem that the loosening phenomenon occurs by repeated vibration and the like.

In addition, in order to permanently use the protective cap material of the protective cap to be made of a metal material, the metal protective cap is a problem that the manufacturing cost rises.

In addition, depending on the site construction conditions, the protruding length of the bolt is often a case, the prior art has a problem that is difficult to respond in this case because the protective cap is produced in a batch.

Republic of Korea Registration Room No. 20-0400249

The present invention has been made to solve the above problems, the object is that the lock spring is coupled to the thread of the anchor bolt is installed inside the protective cap is installed to prevent the corrosion of the nut fastening nut loosening by vibration and shock It is to provide a hybrid protective cap using a lock spring to have a prevention function and a protective function of the nut at the same time, and to release the lock spring to reuse the protective cap.

According to an aspect of the present invention for achieving the above object, the lower cap is installed to surround the nut outer surface of the nut fastening portion; An upper cap coupled to an upper end of the lower cap and surrounding a bolt protruding toward a nut in a dome shape; And a lock spring installed inside the upper cap and coupled to a screw thread of the bolt to prevent loosening of the nut. A hybrid protective cap using a lock spring may be provided.

Here, the lower cap, the outer surface forms a lower cap body consisting of a plurality of surfaces, the inner surface of the lower cap body forms a space surrounding the outer surface of the nut, the upper inner circumference is formed a coupling end coupled to the upper cap Characterized in that.

In addition, the upper cap, the upper cap body forms the upper cap body is inserted into the inner surface of the coupling end of the lower cap, the upper cap body forms a spring mounting portion is installed the lock spring, the spring mounting portion inner surface winding of the lock spring The upper and lower ends in the direction are formed to form a lock spring installation groove, respectively, and the upper portion of the upper cap body is formed a cover portion surrounding the spring installation portion in the shape of a dome, and around the outer surface of the cover portion a nightglow pad that can be identified at night It is characterized by forming.

In addition, the upper cap body is characterized in that to form a rain water cover surrounding the outer surface of the coupling end of the lower cap.

In addition, by forming the concave-convex groove and the concave-convex protrusion on the mating surface to which the lower cap and the upper cap are coupled, respectively, to maintain the coupling force of the upper and lower caps, it is characterized in that the dust-proof / moisture-proof.

In the present invention as described above, the hybrid protective cap is separately manufactured by the lower cap and the upper cap, the lock spring to be assembled and assembled on site, or the protective cap of the pre-assembled form according to the bolted state (protrusion length of the bolt) of the site By having the construction immediately has the effect that can be easily installed.

In addition, the present invention may not only prevent the loosening of the nut by installing the lock spring, but also to directly release the lock cap to release the lock of the lock spring, separate the upper cap from the lower cap lock spring and lower cap After dismantling the bolt from the fastening part has the effect of opening the nut to dismantle and reconstruct the structure.

In addition, the present invention has the effect of preventing accidents and the like by installing a luminous pad that can be identified even at night on the outer surface of the protective cap.

1 is a cross-sectional view showing a state in which a hybrid protective cap using a lock spring according to the present invention constructed on a nut fastening portion.
Figure 2 is an exploded cross-sectional view of a hybrid protective cap using a lock spring in accordance with the present invention.
Figure 3 (a), (b) is a lower cap top view and the top cap bottom view, (c) is a lock spring top view.
Figure 4 (a) is a cross-sectional view of the hybrid protective cap using a lock spring according to the present invention, (b) is a bottom view.
Figure 5 (a), (b) is an enlarged view of the main portion showing the lock installation of the upper cap.
Figure 6 is an illustration of the construction of replacing the upper cap of the present invention with another size of the upper cap.
Figure 7 is a cross-sectional view showing an example of forming a rainwater cover on the upper cap of the present invention.
8 is an exemplary view showing a state in which the upper cap is separated from the nut fastening portion of the present invention.
9 is an exemplary view showing a state in which the lock spring and the lower cap sequentially separated in FIG.
Figure 10 is a construction cross-sectional view showing a protective cap construction state according to the prior art.

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

1 is a construction cross-sectional view showing a state in which a hybrid protective cap using a lock spring according to the present invention constructed in the nut fastening portion, Figure 2 is an exploded cross-sectional view of a hybrid protective cap using a lock spring according to the present invention, Figure 3 (a) and (b) are the bottom cap top view and the top cap bottom view, and (c) the lock spring top view.

The present invention as shown in Figures 1 to 3 is largely composed of a lower cap 110, the upper cap 120, lock spring 130.

Referring to the coupling relationship of each of the above components, the lower cap 110 is installed to surround the nut (N) outer surface of the nut fastening portion, the lower cap 110 is projected toward the upper nut (N) on the top The upper cap 120 surrounding the bolt B in a dome shape is coupled, and the lock spring 130 is coupled to the thread of the bolt B to prevent loosening of the nut N inside the upper cap 120. ) Is installed.

Hereinafter, the lower cap 110 will be described in detail. The lower cap 110, as shown in Figure 3 (a) forms a lower cap body 111 consisting of a plurality of outer surfaces.

Forming the outer surface of the lower cap body 111 in a multi-faced in order to rotate by applying an external force using a tool such as a wrench or spanner when installing or releasing the protective cap, to prevent damage by external force It may be manufactured using a metal material or a high strength synthetic resin material.

In addition, the inner surface of the lower cap body 111 forms a space portion 112 surrounding the outer surface of the nut (N).

At this time, the space 112 is formed in a circular space larger than the outer diameter of the nut (N) as shown in Figure 3 (a) so that interference with the nut (N) does not occur.

In addition, the upper inner circumference of the lower cap body 111 to form a coupling end 113 to which the upper cap 120 is coupled, the coupling end 113 may have a planar shape in a polygonal shape, The shape of the cross section can be formed to have a step of "L" shape.

At this time, the concave-convex groove 114 may be formed on the inner side surface of the coupling end 113. The concave-convex groove 114 suppresses the detachment when the upper cap 120 is coupled and provides a coupling structure for a sealing function. It is to provide.

The uneven groove 114 may be formed as a strip-shaped groove connected in the circumferential direction along the inner surface of the coupling end 113.

Hereinafter, the upper cap 120 will be described in detail. The upper cap 120 forms the upper cap body 121 is inserted into the inner surface of the coupling end 113 of the lower cap 110.

At this time, the upper cap body 121 may be made to have a polyhedral outer surface as shown in Figure 3 (b).

In addition, the upper cap body 121 forms a spring installation portion 122 in which the lock spring 130 is installed. At this time, the spring installation portion 122 is formed to have a circular space larger than the outer diameter of the spring as shown in Figure 3 (b).

In addition, the upper and lower ends of the lock spring 130 of the lock spring 130 as shown in FIG. ).

At this time, when the lock installation unit 123 rotates the protective cap in the forward direction (clockwise), by pushing the upper end of the lock spring in the rotational direction to be interlocked, the lock spring 130 is riding the thread of the bolt To lock the nut so that the nut does not loosen from the bolt, and the lock release part 123` rotates the protective cap in the reverse direction (counterclockwise) to release the lock spring 130 from the bolt. To be removed from the facility.

As shown in FIG. 5 (a), the lock installation part 123 is provided with a vertical guide groove 123a and a horizontal guide groove 123b. When the protective cap is rotated, one end of the horizontal guide groove 123b is contacted. By applying pressure to the lock spring 130 to fix the nut into the thread of the bolt, the protective cap or the nut can be protected from vibration or impact, and the unlocking portion 123 ′ is shown in FIG. 5 (b). When dismantling or repairing the facility, the protective cap is rotated in reverse to contact one end of the horizontal guide groove 123`b of the unlocking part 123` to press the lock spring 130 in reverse to release the protective cap. It is intended to be.

In addition, the vertical guide grooves 123a and 123`a of the lock installation unit and the unlocking unit 123 and 123` move to move in the vertical direction when the lock spring 130 is coupled to or separated from the upper cap 120. To provide the furnace.

5 (a) and 5 (b), vertical guide grooves 123a and 123'a are provided in the lock installation part and the lock release part 123 and 123 'corresponding to the upper and lower end portions of the lock spring 130, respectively. Horizontal guide grooves 123b and 123`b may be connected to each other. When the horizontal guide grooves 123b and 123`b spirally couple or release the lock springs 130 to the bolt threads, the lock springs 130 may be formed. This is to secure the clearance space where elastic deformation is possible, so that the spiral coupling can be easily performed.

In addition, a cover part 124 is formed on the upper cap body 121 to cover the spring installation part 122 in a dome shape.

At this time, in the present invention, by varying the height of the cover portion 124 to produce the upper cap 120 by size, as shown in Figure 6, if the protruding length of the bolt is long, the upper cap 120 of a large size To be used in conjunction with the lower cap 110.

In addition, a luminous pad 125 may be formed around the outer surface of the cover part 124 at night.

The luminous pad 125 is used in the sense of including a tape or a paint or synthetic resin.

For example, after attaching to the outer surface of the upper cap body 121 in the form of a tape, painted in the form of a coating, or molded to immerse the upper cap body 121 to a predetermined depth, the transparent synthetic resin containing a luminous material, the recess It is possible to mold so as to be molded in the.

In addition, an uneven protrusion 126 coupled to the uneven groove 114 of the lower cap 110 may be formed at the lower end of the outer surface of the upper cap body 121.

The uneven protrusion 126 may be manufactured in the form of a band connecting the outer surface of the upper cap body 121 in the circumferential direction.

The rain cap cover 127 may be formed on the outer surface of the upper cap body 121 to surround the outer surface of the coupling end 113 of the lower cap 110 as shown in FIG. 7.

The rain water cover 127 serves to prevent the rainwater penetrates into the lower cap body 111 to corrode the nut coupling portion.

Hereinafter, the process of constructing the protective cap according to the present invention to the nut fastening portion. Before construction, the operator checks the height of the bolt protrusion of the nut connection portion of the site to use the upper cap 120 of the size corresponding thereto.

The lock spring 130 is inserted into the spring installation portion 122 of the upper cap 120. At this time, the vertical guide grooves 123a and 123`a are formed at positions corresponding to upper and lower ends of the lock spring 130. Accordingly, by pushing the lock spring 130 and rotating horizontally, the lock spring 130 is seated on the upper cap 120 as the upper and lower ends enter the horizontal guide grooves (123b, 123`b), respectively.

Thereafter, the lower side of the upper cap body 121 to be in close contact with the external force in the direction facing both sides to the coupling end 113 of the lower cap 110, in this case, the lower side of the upper cap body 121 Proceeding along the inner surface of the coupling end 113 of the 110, the concave-convex protrusion 126 and the concave-convex groove 114 formed on both sides are mutually matched, so that the external cap is not applied to the upper cap at the lower cap 110 120 will be prevented from being separated.

In the above-described order, the assembled protective cap is fastened to the bolt B of the nut fastening portion.

At this time, the lock spring 130 is a tensile force is generated by the friction with the bolt thread and is expanded in the circumferential direction by the elastic deformation, the lock spring 130 is one end of the horizontal guide groove (123b) of the lock installation portion 123 As the contact portion of the lock spring 130 is elastically deformed, the contact portion of the lock spring 130 descends to the nut through the screw thread of the bolt, and fixedly compresses the screw thread of the bolt to prevent the nut N from being loosened by vibration and impact.

Hereinafter, a description will be given of a work process for removing the protective cap and dismantling the nut fastening portion.

When the lower cap 110 is reversely rotated with a wrench or the like, a reverse rotation pressure is applied to the unlocking portion 123 ′ of the upper cap 120 such that the tension force is generated by friction with the bolt thread. It is expanded in the circumferential direction by elastic deformation, and the protective cap is separated by the loosening action while the contact portion of the lock spring 130 is extended by contacting one end of the horizontal guide groove 123`b of the lock release part 123`. .

In addition, as shown in Figure 8 by applying an external force to the upper cap 120 to pull in the vertical direction, to be separated from the lower cap (110).

At this time, the lock spring 130 is left in a state fastened to the bolt screw thread, the operator can be separated from the bolt thread by rotating the lock spring 130 in the counterclockwise direction while opening the lower end of the lock spring 130. .

Then, after separating the lock spring 130 and the lower cap 110 as shown in Figure 9, by releasing the nut (N) to release the fastening structure of the nut fastening portion can be dismantled structure.

As described above, the present invention is constructed by constructing the protective cap by combining the lower cap, the upper cap, and the lock spring as one, or by separately manufacturing the assembled cap in the field, and according to the bolt fastening state of the site (protrusion length of the bolt), It is possible to replace the cap, make the lower cap which receives the external force by the fastening tool directly from the durable metal, and the upper cap, which is relatively easy to replace, can be manufactured from synthetic resin. Can be lowered.

In addition, the present invention is to separate the upper cap from the lower cap and to disassemble the lock spring and the lower cap from the bolt fastening portion, and then open the bolt fastening portion to enable the dismantling of the structure, the protective cap is installed to prevent corrosion of the nut fastening portion By installing a lock spring coupled to the thread of the anchor bolt inside, it prevents the nut from loosening and prevents accidents, and also protects the external exposure of the nut connection part and dust or moisture penetration so that the nut connection part looks beautiful. At the same time, it can prolong the life by preventing corrosion, and it has the effect of preventing accidents by installing a luminous pad that can be identified at night on the outside of the protective cap.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are within the scope of the claims.

110: lower cap 111: lower cap body
112: space portion 113: coupling end
114: uneven groove 120: upper cap
121: upper cap body 122: spring mounting portion
123: lock installation portion 123a: vertical guide groove
123b: Horizontal guide groove 123`: Lock release
123`a: vertical guide groove 123`b: horizontal guide groove
124: cover 125: luminous pad
126: uneven protrusions 127: rainwater cover
130: lock spring
B: bolt N: nut

Claims (5)

The outer surface forms a lower cap body 111 consisting of a plurality of surfaces, the lower cap body 111 is formed with a coupling end 113 and the uneven groove 114 for coupling with the upper cap 120, the lower A lower cap 110 formed on the inner surface of the cap body 111 to form a space portion 112 surrounding the outer surface of the nut N to surround the outer surface of the nut N of the nut fastening portion;
It is inserted into the inner surface of the coupling end 113 of the lower cap 110, the uneven protrusion 126 is formed to be coupled to the uneven groove 114 of the lower cap 110, lock installation portion 123 and An upper cap body 121 having a lock release part 123 'is formed, a spring installation part 122 having a lock spring 130 is installed inside the upper cap body 121, and the lower cap ( 110) the upper cap 120 is coupled to the upper end to enclose the bolt (B) protruding toward the nut (N) in a dome shape; and
Is installed in the upper cap body 121, by pushing the lock spring 130 along the vertical guide grooves (123a, 123`a) at a position corresponding to the upper and lower ends of the lock spring 130 and rotates horizontally, As the upper and lower ends respectively enter the horizontal guide grooves 123b and 123`b, the lock spring 130 is seated on the upper cap 120, and is screwed with the thread of the bolt B to loosen the nut N. Lock spring 130 to prevent; And
Hybrid protective cap using a lock spring, characterized in that the outer periphery of the cover portion 124 includes a luminous pad 125 that can be identified at night.
delete delete The method of claim 1,
Hybrid protective cap using a lock spring, characterized in that to form a rain water cover 127 surrounding the outer surface of the coupling end 113 of the lower cap 110 on the outer surface of the upper cap body 121.
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