Double expand strong anchor enhancemented fixation power

Abstract

The invention relates to a set anchor equipped with a sealing tube, Through a technical configuration comprising: a buried nut embedded in the inner lower part of an installation hole drilled in a floor, wall, or ceiling surface; a bolt having a washer part, a tube support part, and a fastening part provided at the bottom of the head part, which is fastened to the buried nut to fix a structure; and a sealing tube inserted into the tube support part of the bolt, which expands its maximum diameter during the bolt fastening process to adhere closely to the installation hole. When a buried nut or buried bolt is inserted into an installation hole drilled in a floor, wall, or ceiling surface to secure it firmly, and then a bolt or washer nut is tightened, the sealing tube is compressed to expand the maximum diameter of the sealing tube. As a result, the sealing tube is strongly adhered to and secured to the inner surface of the installation hole along with the buried nut or buried bolt, thereby enabling stable support of the structure installed on the floor surface, etc.

Description

Technology Field

[0001] The present invention relates to a set anchor equipped with a sealing tube, and more specifically, to a sealing tube installed between a fixing washer at the bottom of a bolt head and a nut, which is compressed during the process of fastening a bolt to a nut inserted and fixed at the bottom of an installation hole, thereby expanding its diameter and firmly sealing it to the installation hole to enhance the fixing force. Background Technology

[0002] Anchor bolts are generally used in various forms when installing structures on the ground or walls.

[0003] Anchor bolts, which are widely used in construction sites such as wooden buildings, steel frame buildings, and reinforced concrete, differ in their usage methods depending on the type. Set anchors, in which the external threaded bolt is exposed and tightened with a nut, and strong anchors, in which the internal threaded part is inserted and attached with a threaded bolt, are mainly used.

[0004] As described above, the set anchor is a type in which, after drilling a hole, a bolt is inserted into the hole and the pipe is struck with an anchor punch, causing the pipe of the anchor bolt to spread and become fixed. Since the bolt and the pipe are tightened together, it has the characteristic of being able to be installed while exhibiting maximum seismic resistance.

[0005] The present invention relates to a set anchor that, unlike the aforementioned general set anchor, fastens a nut to the lower end of a bolt installed on a structure, inserts the nut into an installation hole formed on the installation surface to secure it, and then tightens the bolt to securely fix the structure to the installation surface.

[0006] Patent Document 1 below discloses a set anchor combined with a wedge sleeve, characterized by comprising: a body having a threaded portion formed along its outer surface and a conical tapered portion formed at its lower end, which is installed inside an installation hole of a concrete structure; a sleeve inserted outside the body, having an upper cut-out portion and a lower cut-out portion formed at its upper and lower ends, respectively; a wedge sleeve inserted outside the body, which moves into the upper inner part of the sleeve upon impact with an anchor punch, thereby pushing the sleeve downward to expand the upper and lower ends; and a washer and a nut that are fastened to the threaded portion while the body is installed in the installation hole.

[0007] Patent Document 2 below discloses a stud set anchor comprising: a bolt rod provided at the lower part of a bolt rotating part, a first tapered part, and a male threaded part; a wedge tube comprising a cylindrical body and a plurality of first cut parts and second cut parts; a second tapered part located at the lower part of the wedge tube and formed to be tapered so that the diameter decreases toward the upper part, inserted into the lower part of the cylindrical body of the wedge tube to open the second cut part so that the lower part of the cylindrical body is fixed to the anchor hole, and a wedge part formed with a female threaded part that penetrates vertically inside the second tapered part and is coupled to the male threaded part of the stud anchor bolt to narrow the gap between the first tapered part and the second tapered part. Prior art literature

[0008] Republic of Korea Published Patent Application No. 10-2024-0122992 (Published August 13, 2024) Republic of Korea Registered Patent Application No. 10-2061601 (Registered December 26, 2019) The problem to be solved

[0009] The set anchor according to the prior art including Patent Documents 1 and 2 is a type in which the maximum diameter of the sleeve or wedge tube expands during the process of tightening the bolt and is firmly fixed in the installation hole. However, because the wedge sleeve or wedge part rises and expands the sleeve or wedge tube through the force of tightening the bolt to fix the structure, a large force is required when tightening the bolt, and consequently, the work of tightening the bolt becomes very difficult. Additionally, the expansion force of the sleeve or wedge tube is insufficient, so it frequently fails to adhere strongly to the installation hole, resulting in problems such as the inability to firmly fix the structure even after construction.

[0010] The present invention aims to solve the problems of the set anchor according to the prior art, and its purpose is to provide a set anchor equipped with a sealing tube that allows a buried nut or buried bolt to be easily inserted into an installation hole drilled in a floor, wall, or ceiling surface to be securely fixed, and also allows the structure to be securely fixed by stably expanding the maximum diameter of the sealing tube during the fastening process of the bolt or washer nut so that the sealing tube is strongly pressed against the inner surface of the installation hole. means of solving the problem

[0011] To achieve the above-mentioned purpose, a set anchor having a sealing tube according to the present invention is characterized by comprising: a sealing nut embedded in the inner lower portion of an installation hole drilled in a floor, wall, or ceiling surface; a bolt that is fastened to the sealing nut to fix a structure, having a washer portion, a tube support portion, and a fastening portion provided at the lower portion of the head portion; and a sealing tube that is inserted and installed in the tube support portion of the bolt, and whose maximum diameter expands during the bolt fastening process to be in close contact with the installation hole.

[0012] In a set anchor equipped with a sealing tube according to the present invention, the embedded nut is formed such that a plurality of fixing ribs are radially arranged on the outer circumference of a nut body having a female thread, and the fixing ribs are inclined such that the protrusion length of the upper portion is long and the protrusion length of the lower portion is short, and the length between the center of the embedded nut and the outer side of the lower portion of the fixing rib is set to be smaller than the radius of the installation hole, and the length between the center of the embedded nut and the outer side of the upper portion of the fixing rib is set to be larger than the radius of the installation hole.

[0013] In a set anchor having a sealing tube according to the present invention, the sealing tube is formed such that an expansion portion is provided between a pressurizing portion and a landing portion, the pressurizing portion and the landing portion are in the form of straight tubes with the same upper diameter and lower diameter, and the expansion portion is in the shape of a jar in which the diameter gradually increases from the top to the center and then gradually decreases again from the center to the bottom.

[0014] A set anchor having a sealing tube according to the present invention is characterized by having a plurality of protruding rings arranged vertically or a plurality of slits arranged radially on the outer circumference of the expansion portion.

[0015] A set anchor having a sealing tube according to the present invention is characterized by comprising: a buried bolt that is installed by being embedded in an installation hole drilled in a floor, wall, or ceiling surface, in a form having a tube support portion and a fastening portion provided at the top of a buried head portion having a plurality of fixing ribs radially arranged on its outer circumference; a washer nut that is fastened to the fastening portion of the buried bolt and fixes a structure inserted into the buried bolt, in a form having a washer portion provided at the bottom of a nut body; and a sealing tube that is inserted into the tube support portion of the buried bolt and is installed, and whose maximum diameter expands during the fastening process of the washer nut to be in close contact with the installation hole. Effects of the invention

[0016] According to the set anchor having a contact tube according to the present invention, when a bolt or washer nut is inserted into an installation hole drilled in a floor, wall, or ceiling surface and is firmly fixed, and then a bolt or washer nut is tightened, the contact tube is compressed to expand the maximum diameter of the contact tube, thereby the contact tube is strongly fixed to the inner surface of the installation hole together with the bolt or washer nut, so that a structure installed on the floor surface, etc. can be stably supported.

[0017] According to the set anchor equipped with a sealing tube according to the present invention, a buried nut or a buried bolt can be easily installed in an installation hole drilled in a floor, wall, or ceiling surface, and the work of tightening a bolt or washer nut by fastening it with a fastening tool can be easily performed, and the structure can be fixed more firmly to the floor surface, etc., thereby improving workability and reducing construction manpower and construction costs. Brief explanation of the drawing

[0018] FIG. 1 is an exploded perspective view of a set anchor having a sealing tube according to the present invention. FIG. 2 is an exploded cross-sectional view of a set anchor having a sealing tube according to the present invention, FIGS. 3a to 3c, FIGS. 4a and 4b are cross-sectional views showing the construction process of a set anchor equipped with a contact tube according to the present invention. FIGS. 5A and 5B are perspective views of another embodiment of a sealing tube of a set anchor having a sealing tube according to the present invention. FIG. 6 is an exploded cross-sectional view of a set anchor having a sealing tube according to another embodiment of the present invention, FIGS. 7A and 7B are cross-sectional views showing the construction process of a set anchor having a sealing tube according to another embodiment of the present invention. Specific details for implementing the invention

[0019] The set anchor equipped with a sealing tube according to the present invention will be described in detail below with reference to the attached drawings. For reference, the size, line thickness, etc. of the components shown in the drawings referenced in describing the present invention may be expressed somewhat exaggerated for ease of understanding.

[0020] Furthermore, the terms used in the description of the present invention are defined considering their functions within the invention and may vary depending on the user's or operator's intent, convention, etc. Accordingly, it is appropriate to define these terms based on the entire content of this specification.

[0021] Furthermore, in this application, terms such as 'comprising' and 'having' refer to the existence of specific numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0022] In addition, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms, and the embodiments provided are merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention.

[0023] Therefore, the present invention is susceptible to various modifications and may take various forms, and embodiments (aspects or examples) are to be described in detail in the specification. However, this is not intended to limit the present invention to specific disclosed forms, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the technical scope of the present invention, and singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise.

[0024] However, in describing the present invention, specific descriptions of well-known or known functions or configurations are omitted in order to clarify the gist of the invention.

[0025] In the following, "upward," "downward," "forward," "rearward," and other directional terms are defined based on the state depicted in the drawings.

[0026] FIG. 1 is an exploded perspective view of a set anchor having a sealing tube according to the present invention, and FIG. 2 is an exploded cross-sectional view of a set anchor having a sealing tube according to the present invention.

[0027] A set anchor (100) having a sealing tube according to the present invention includes a buried nut (110), a bolt (120), and a sealing tube (130).

[0028] The embedded nut (110) is a part that is inserted into and embedded in an installation hole (210) that is drilled in the floor surface (200) or the wall surface or ceiling surface.

[0029] The embedded nut (110) has a shape in which a plurality of fixing ribs (112) are radially arranged on the outer circumference of a nut body (111) in which a female screw is formed.

[0030] The fixing rib (112) of the embedded nut (110) is in a slanted shape with a long protruding length at the top and a short protruding length at the bottom.

[0031] The length between the center of the embedded nut (110) and the lower outer side of the fixing rib (112) is set to be smaller than the radius of the installation hole (210), and the length between the center of the embedded nut (110) and the upper outer side of the fixing rib (112) is set to be larger than the radius of the installation hole (210).

[0032] Accordingly, when the embedded nut (110) is pressed into the installation hole (210), the lower part of the fixing rib (112) can be smoothly inserted into the installation hole (210), and the upper part of the fixing rib (112) digs into the inner surface of the installation hole (210), thereby preventing the embedded nut (110) from moving in the left and right directions.

[0033] The bolt (120) is a part that secures the structure (300) and is fastened to the embedded nut (110).

[0034] The bolt (120) has a shape in which a washer part (122), a tube support part (123), and a fastening part (124) are provided at the bottom of the head part (121).

[0035] The sealing tube (130) is a part that is in close contact with the installation hole (210) by expanding its maximum diameter during the fastening process of the bolt (120), and the tube support part (123) and fastening part (124) of the bolt (120) are inserted and installed.

[0036] The sealing tube (130) has a shape in which an expansion portion (132) is provided between the pressurizing portion (131) and the landing portion (133), and is formed of a material with good elasticity such as soft synthetic resin, rubber, or silicone.

[0037] The pressure portion (131) is a part where the upper end is in close contact with the lower end of the washer portion (122) of the bolt (120), and is in the shape of a straight tube with the same upper diameter and lower diameter.

[0038] The landing portion (133) is a part where the lower end lands on the upper end of the embedded nut (110), and like the pressurizing portion (131), it is in the shape of a straight tube with the same upper diameter and lower diameter.

[0039] The expansion portion (132) provided between the pressurizing portion (131) and the landing portion (133) is a part that comes into close contact with the inner surface of the installation hole (210) as its maximum diameter expands during the fastening process of the bolt (120), and is shaped like a jar in which the diameter gradually increases from the top to the center and then gradually decreases again from the center to the bottom.

[0040] The maximum diameter of the expansion portion (132) is set to be equal to or slightly smaller than the diameter of the installation hole (210) when not deformed by external force.

[0041] A set anchor (100) having a sealing tube according to the present invention can firmly fix a structure (300) by the sealing tube (130) being in contact with the installation hole (210) as the maximum diameter of the sealing tube (130) expands while fastening the bolt (120) to the embedded nut (110) embedded in the installation hole (210).

[0042] FIGS. 3a to 3c, FIGS. 4a, and FIGS. 4b are cross-sectional views showing the construction process of a set anchor equipped with a contact tube according to the present invention.

[0043] The process of fixing and installing a structure (300) on a floor surface (200) using a set anchor (100) equipped with a sealing tube according to the present invention is described as follows.

[0044] First, a drill is made to a set depth of an installation hole (210) at the installation site's floor surface (200), and foreign matter inside the installation hole (210) is removed.

[0045] Next, a bolt (120) is inserted into a bolt insertion hole (301) provided in the structure (300), and a sealing tube (130) is inserted into the bolt (120).

[0046] Next, the embedded nut (110) is attached to the fastening portion (124) of the bolt (120), and the embedded nut (110) is inserted into the installation hole (210) as shown in FIG. 3a. Then, the head portion (121) of the bolt (120) is struck using a striking means such as an anchor punch so that the embedded nut (110) is embedded in the lower inner part of the installation hole (210) as shown in FIG. 3b.

[0047] Next, as shown in FIG. 3c, the bolt (120) is tightened with a fastening tool so that the washer part (122) presses against the upper part of the structure (300) and the expansion part (132) of the sealing tube (130) expands, thereby firmly fixing the structure (300) to the bottom surface (200).

[0048] When the bolt (120) is tightened and lowered toward the embedded nut (120) as described above, the distance between the lower end of the washer part (122) and the upper end of the embedded nut (110) is reduced, and during the process of lowering the bolt (120), the washer part (122) presses the pressure part (131) of the sealing tube (130), so the upper length of the expansion part (132) of the sealing tube (130) is reduced, and at the same time, the expansion part (132) expands in the left and right directions, so that the maximum diameter of the expansion part (132) increases, and the outer surface of the expansion part (132) strongly adheres to the inner surface of the installation hole (210).

[0049] Therefore, even if an upward tensile force is applied to the structure (300) fixed to the floor surface, the rising of the embedded nut (110) is prevented through the adhesion force of the adhesion tube (130), so the bolt (120) does not rise, and accordingly, the structure can maintain a solid fixed state.

[0050] The set anchor (100) having a sealing tube according to the present invention allows the embedded nut (110) and the sealing tube (130) to be easily inserted and installed into the installation hole (210), and the sealing tube (130), which expands in diameter during the process of tightening the bolt (120), is strongly sealed to the installation hole (210), thereby allowing the structure (300) to be firmly fixed and installed on the floor surface (200).

[0051] The set anchor (100) having a sealing tube according to the present invention can also be constructed by first inserting only the embedded nut (110) into the installation hole (210) as shown in FIG. 4a and fixing it to the lower inner part of the installation hole (210), then inserting the sealing tube (130) into the installation hole (210), and as shown in FIG. 4b, inserting the bolt (120) that has passed through the bolt insertion hole (301) of the structure (300) into the sealing tube (130) and fastening it to the embedded nut (110).

[0052] FIGS. 5A and 5B are perspective views of other embodiments of a sealing tube of a set anchor having a sealing tube according to the present invention.

[0053] In the set anchor (100) having a sealing tube according to the present invention, the sealing tube (130) can be modified into various forms as shown in FIG. 5a and FIG. 5b.

[0054] That is, in the set anchor (100) having a sealing tube according to the present invention, the sealing tube (130) may be modified to a form such as in FIG. 5a, in which a plurality of protruding rings (132a) are provided in the upper and lower directions on the outer circumference of the expansion part (132) to further improve the sealing force with the installation hole (210) when the expansion part (132) expands, or as in FIG. 5b, in which a plurality of slits (132b) are provided radially on the expansion part (132) to allow the expansion part (132) to expand more stably when the expansion part (132) expands, or in other predictable forms.

[0055] FIG. 6 is an exploded cross-sectional view of a set anchor having a sealing tube according to another embodiment of the present invention, and FIG. 7a and FIG. 7b are cross-sectional views showing the construction process of a set anchor having a sealing tube according to another embodiment of the present invention.

[0056] The set anchor (100) having a sealing tube according to the present invention can also be modified to be installed by embedding a buried bolt (140) in an installation hole (210) and fixing a structure (300) with a washer nut (150), as in another embodiment shown in FIGS. 6 to 7b.

[0057] A set anchor (100) having a sealing tube in another embodiment of the present invention of FIGS. 6 to 7b comprises: a buried bolt (140) having a tube support portion (143) and a fastening portion (144) provided at the top of a buried head portion (141) having a plurality of fixing ribs (142) radially arranged on the outer circumference; and a washer nut (150) having a washer portion (152) provided at the bottom of a nut body (151).

[0058] In the set anchor (100) having a sealing tube of another embodiment of the present invention, the shape of the embedded head portion (141) of the embedded bolt (140) is the same shape as the shape of the embedded nut (120) of the embodiment of FIGS. 1 to 4b, and plays the same role in the embedded process.

[0059] In another embodiment of the present invention, the set anchor (100) having a sealing tube can be installed by embedding a buried bolt (140) in an installation hole (210) as shown in FIG. 6a, inserting a sealing tube (130) into the tube support portion (143) of the buried bolt (140), and then inserting the bolt insertion hole (301) of the structure (300) into the fastening portion (144) protruding above the ground as shown in FIG. 6b, and tightening a washer nut (150) to securely fix the structure (300) to the floor surface (200).

[0060] That is, unlike the set anchor (100) having a sealing tube in the embodiment shown in FIGS. 1 to 4b, in which a bolt (120) is inserted into the bolt insertion hole (301) of the structure (300), a buried nut (130) is attached to the fastening part (124) of the bolt (120), and then the buried nut (130) is embedded in the installation hole (210) of the floor surface (200), the buried bolt (140) is first embedded in the installation hole (210) of the floor surface (200), and then the structure (300) is inserted and installed into the fastening part (124) of the buried bolt (140) protruding above the ground, and then the sealing tube (130) is expanded through the washer nut (150), the fixing work of the structure (300) can be performed more easily.

[0061] As described above, the set anchor (100) equipped with a sealing tube according to the present invention can be firmly fixed by easily inserting a sealing nut (120) or a sealing bolt (140) into an installation hole (210) drilled in the floor surface (200), wall surface, or ceiling surface, and the maximum diameter of the sealing tube (130) can be stably expanded even when the bolt (120) or washer nut (150) is tightened by rotating it with an appropriate torque, thus making construction easier.

[0062] In addition, the set anchor (100) having a sealing tube according to the present invention can more stably fix the structure (300) because the embedded nut (120) or embedded bolt (140) embedded in the installation hole (210) does not move during the tightening process of the bolt (120) or washer nut (150), and the upper length of the sealing tube (130) is reduced while the maximum diameter of the sealing tube (130) is expanded so that it is strongly attached to the inner surface of the installation hole (130).

[0063] Although the invention made by the inventors has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the gist thereof. Explanation of the symbols

[0064] 100 : Set anchor equipped with a sealing tube 110 : Embedded nut 111 ; Nut body 112 : Fixing rib 120 : Bolt 121: Head part 122: Washer part 123 : Tube support 124 : Fastening part 130 : Close-fitting tube 131 : Pressurizing part 132: Expansion part 132a: Protruding ring 132b : Slit 133 : Landing part 140: Embedded bolt 141: Head 142: Fixed rib 143: Tube support 144 : Fastening part 150 : Washer nut 151: Nut body 152: Washer part 200 : Bottom surface 210 : Installation hole 300 : Structure

Claims

Claim 1 The structure (300) is secured by being fastened to the embedded nut (110) and fixed, with a washer portion (122), a tube support portion (123), and a fastening portion (124) provided at the bottom of the head portion (121); and a sealing tube (130) is inserted into the tube support portion (123) of the bolt (120), and its maximum diameter is expanded during the fastening process of the bolt (120) to be in close contact with the installation hole (210). The embedded nut (110) is formed such that a plurality of fixing ribs (112) are radially arranged on the outer circumference of a nut body (111) having a female screw thread, and the fixing ribs (112) have an inclined shape with a long protruding length at the upper end and a short protruding length at the lower end. A set anchor having a sealing tube, characterized in that the length between the center of the embedded nut (110) and the lower outer side of the fixing rib (112) is set to be smaller than the radius of the installation hole (210), and the length between the center of the embedded nut (110) and the upper outer side of the fixing rib (112) is set to be larger than the radius of the installation hole (210), and the sealing tube (130) is in the form of having an expansion part (132) between the pressurizing part (131) and the landing part (133), the pressurizing part (131) and the landing part (133) are in the form of straight tubes with the same upper diameter and lower diameter, and the expansion part (132) is in the form of a jar in which the diameter gradually increases from the top to the center and then gradually decreases again from the center to the bottom. Claim 2 delete Claim 3 delete Claim 4 A set anchor having a sealing tube characterized in that, in claim 1, a plurality of protruding rings (132a) are provided in the vertical direction or a plurality of slits (132b) are provided radially on the outer circumference of the expansion portion (132). Claim 5 delete

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