KR102654543B1 - Joint apparatus for tubular steel pole - Google Patents

Abstract

The present invention relates to a connecting device for a tubular support, and relates to a connecting device for a tubular support that fixes two support plates among a plurality of support plates constituting a tubular support in a state in which two support plates are arranged adjacent to each other, one side A connection bracket having a horizontal portion that is in close contact with the inner surface of the first support plate and the other side is in close contact with the inner surface of the second support plate, and a movable bracket consisting of a pair that is in close contact with one side and the other side of the connection bracket and having a nut insertion portion. , a fastening unit that is inserted into the nut insertion part and fixed for rotation and is seated on the connection bracket, and a fastening bolt that penetrates the support plate and the connection bracket and fastens to the fastening nut, and is equipped with an anti-loosening spring and fastened to the fastening bolt. The fastening force between nuts can be maintained, and the anti-loosening function of the anti-loosening spring can be released with a simple operation, making maintenance easy.

Description

Connecting device for tubular support {JOINT APPARATUS FOR TUBULAR STEEL POLE}

The present invention relates to a connection device for a tubular support, which is provided with an anti-loosening spring to maintain the fastening force between the fastening bolt and the fastening nut, and is easy to maintain because the anti-loosening function of the anti-loosening spring can be released with a simple operation. It relates to a connecting device for tubular supports.

The simplest form of support used in transmission towers is a tubular support that uses a pole as the main support. In this case, the main pole is divided into modules to increase the convenience of transportation and installation, and is replaced with several cylindrical or square pipes. It can be constructed by connecting.

Since tubular supports for power transmission are generally thick and heavy depending on the load supported by the pipe used, in order to construct such tubular supports, pipes in the form of modules pre-manufactured at the factory must be used. It must be transported to the installation site and connected using equipment.

Representative connection methods include the flange joint method and the slip joint method.

The slip joint method is a type in which one of the two pipes to be connected is inserted into the other pipe. It is an assembly method in which the two pipes are overlapped and fitted, and separate welding or bolting is not required.

Typically, the slip joint method requires insertion and fitting at a depth equivalent to about 1.5 times the diameter of the pipe, so an increase in weight in the overlapping area is inevitable, and the overlapping area must be designed to be inclined in advance so that it can be inserted and fixed consistently. There is a downside. And since these points must be observed to avoid overlapping or overlapping less than 1.5 times the pipe diameter, the design of the connection has the disadvantage of being difficult and difficult.

The flange joint method is a type in which a flange is attached to two pipes to be connected by welding or other methods and then bolted. There is no increase in weight of the overlapping parts and the design is simple.

However, manufacturing is difficult because flange welding is required at the end of the pipe to connect the bolt joint, and an additional reinforcing plate is required to reinforce the welded area. Since this flange joint appears to protrude from the pipe, it has an uneven surface. It has the disadvantage of being less aesthetically pleasing.

In addition, the assembly process is cumbersome as the bolt fastening part holds the nut on one side and tightens the bolt on the other side, and the fastening force becomes loose due to dynamic load due to vibration applied periodically or aperiodically after tightening, causing the fastening part to break. There was a problem with movement occurring.

Korean Registered Utility Model Publication No. 0387799

The present invention was conceived in the above-described background, and its purpose is to provide a connection device for a tubular support that is easy to assemble and install by providing a structure for supporting the fastening nut so that the fastening bolt and fastening nut can be easily fastened. .

In addition, as an anti-loosening spring is provided inside the fastening nut to prevent loosening of the fastening bolt, the fastening force can be maintained even when vibration is applied periodically or aperiodically, and when necessary, the anti-loosening spring function can be activated with a simple operation. The purpose is to provide a connection device for tubular supports that can be easily disassembled, making it easy to install and disassemble, making maintenance convenient and significantly shortening construction time.

The object of the present invention is not limited here, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

According to the present invention, in a connecting device for a tubular support that secures between two support plates among a plurality of support plates constituting the tubular support in a state where two support plates are arranged adjacent to each other, one side is inside the first support plate. A connection bracket having a horizontal portion that is in close contact with the side and the other side is in close contact with the inner surface of the second support plate, a moving bracket that is made of a pair that is in close contact with one side and the other side of the connection bracket and has a nut insertion portion, and is inserted into the nut insertion portion. A connection device for a tubular support can be provided, including a fastening unit consisting of a fastening nut that is rotationally fixed and seated on a connection bracket, and a fastening bolt that penetrates the support plate and the connection bracket and fastens to the fastening nut.

This connection bracket is provided in the center of the horizontal portion and has a support bolt through hole through which the support bolt of the support unit passes, so that the support bolt can be provided with a vertical portion through which the support bolt is fixed by passing through a pair of movable brackets.

In addition, the movable bracket is provided with a support plate having a nut insertion portion that adheres closely to the connection bracket and is formed to be movable in the longitudinal direction after the fastening nut is inserted, and is provided perpendicular to the support plate to adhere closely to the vertical portion and move in the longitudinal direction after the support bolt is inserted. It may include a support wall having a slide hole formed to be movable.

In addition, the fastening unit may further include an anti-loosening spring that is provided in the form of a coil in which one end is fixed inside and the other end protrudes to the outside and is supported on a movable bracket, and is wound around the fastening bolt and provides an anti-loosening function.

As the movable bracket is moved in the longitudinal direction, the other end of the anti-loosening spring is moved and loosened, and the anti-loosening function can be released.

In addition, the fastening nut may have a fastening part on one side with a thread formed so that the fastening bolt is screwed, and an insertion part formed by extending from the fastening part to have a built-in anti-loosening spring for tightening the fastening bolt on the other side.

Here, the anti-loosening spring is bent at one end and fixed by inserting into a fixing groove formed inside the fastening nut, and is bent at the other end, passes through a through hole formed in the fastening nut, and is exposed to the outside and caught on a movable bracket. It may be provided with a supported movable bending end.

Additionally, the movable bracket may be formed by being recessed on one side of the nut insertion portion and may be provided with a bent end support groove into which the movable bent end is inserted.

Additionally, the nut insertion portion may be provided in a long hole shape so that both sides are formed in a flat shape that supports both planes of the fastening nut.

In addition, the slide hole according to one embodiment is provided in the shape of a long hole in the longitudinal direction so that the support bolt can be inserted and moved.

In addition, the slide hole according to another embodiment is formed to be inclined toward the support plate from the center to both ends, so that the support bolts can be located at both ends without an external force supporting the movable bracket toward the connection bracket.

In addition, the slide hole according to another embodiment is formed in the shape of a long hole in the longitudinal direction, with both ends bent toward the support plate, so that the support bolts can be located at both ends without an external force supporting the movable bracket to the connection bracket side. there is.

According to the present invention, the fastening nut is inserted into the nut insertion part and fixed for rotation, so that the fastening bolt and the fastening nut can be fastened without having to separately hold the fastening nut, which facilitates assembly and installation.

In addition, as an anti-loosening spring is provided inside the fastening nut to prevent loosening of the fastening bolt, the fastening force can be maintained even when vibration is applied periodically or aperiodically, and the anti-loosening spring can be installed by a simple operation of moving the moving bracket when necessary. It has the effect of easily disabling the loosening prevention function.

In particular, the anti-loosening spring is fixed to the fastening nut without a separate support structure after being inserted into the fastening nut, making assembly and maintenance easy, and has the effect of significantly shortening construction time.

Figure 1 is a diagram showing a tubular support according to an embodiment of the present invention.
Figure 2 is a perspective view of a connection device for a tubular support according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of a connection device for a tubular support according to an embodiment of the present invention.
Figure 4 is a front view of a connection device for a tubular support according to an embodiment of the present invention.
Figure 5 is a perspective view of a movable bracket of a connection device for a tubular support according to an embodiment of the present invention.
Figure 6 is a front view of a fastening nut of a connection device for a tubular support according to an embodiment of the present invention.
Figure 7 is a cross-sectional view taken along line AA of Figure 6.
Figure 8 is a view showing the state of the anti-loosening spring according to the movement operation of the moving bracket of the connection device for tubular support according to an embodiment of the present invention.
Figure 9 is a view showing an embodiment of the slide hole of the connection device for a tubular support according to the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that the same components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Figure 1 is a view showing a tubular support according to an embodiment of the present invention, Figure 2 is a perspective view of a connection device for a tubular support according to an embodiment of the present invention, and Figure 3 is a connection for a tubular support according to an embodiment of the present invention. It is an exploded perspective view of the device, Figure 4 is a front view of a connection device for a tubular support according to an embodiment of the present invention, Figure 5 is a perspective view of a movable bracket of a connection device for a tubular support according to an embodiment of the present invention, and Figure 6 is It is a front view of the fastening nut of the connection device for a tubular support according to an embodiment of the present invention, Figure 7 is a cross-sectional view A-A of Figure 6, and Figure 8 is a movement operation of the moving bracket of the connection device for a tubular support according to an embodiment of the present invention. It is a diagram showing the state of the anti-loosening spring according to , and Figure 9 is a diagram showing an embodiment of the slide hole of the connection device for a tubular support according to the present invention.

As shown in these drawings, the connecting device for a tubular support according to an embodiment of the present invention includes two support plates (10, 20) among the plurality of plates constituting the tubular support, arranged adjacently. In the connection device for a tubular support that fixes between 10 and 20, one side is in close contact with the inner surface of the first support plate 10 and the other side is in close contact with the inner surface of the second support plate 20 (110) ), a pair of connection brackets 100 each in close contact with one side and the other side of the connection bracket 100, and a movable bracket 200 with a nut insertion portion 211, which is inserted into the nut insertion portion 211. A fastening unit consisting of a fastening nut 320 that is rotationally fixed and seated on the connection bracket 100, and a fastening bolt 310 that penetrates the support plates 10 and 20 and the connection bracket 100 and is fastened to the fastening nut 320. Includes 300.

The connecting device for a tubular support according to the present invention is for connecting a plurality of support plates 10, 20 constituting a tubular support. More specifically, a plurality of support plates 10, 20 are adjacent to each other in the circumferential direction. After being placed, when connected to the connection device for the tubular support, a tubular support in the shape of a cylindrical or rectangular tube is formed. That is, the connecting device for a tubular support according to the present invention connects the circumferential ends of a plurality of support plates 10 and 20 by placing them adjacent to each other.

In this way, the connection device for the tubular support is fixed between the support plates 10 and 20, with two support plates 10 and 20 arranged adjacent to each other among the plurality of support plates 10 and 20 constituting the tubular support, It consists of a connection bracket 100, a movable bracket 200, a fastening unit 300, and a support unit 400.

The support plates 10 and 20 are provided in a plate shape and may be angled or arc-shaped as shown in the drawing, and have through holes 11 and 21 into which the fastening bolts 310 of the fastening unit 300 are inserted. This is formed.

As an example, the drawing shows an embodiment of fixing between the first support plate 10 and the second support plate 20 in the shape of an angled plate, but it is not limited thereto.

The connection bracket 100 has a horizontal portion 110 in close contact with the inner surfaces of the first support plate 10 and the second support plate 20 and a vertical portion perpendicular to the horizontal portion 110 in the center of the horizontal portion 110. It consists of parts 120.

The horizontal portion 110 has one side in close contact with the inner surface of the first support plate 10 and the other side in close contact with the inner surface of the second support plate 20, and the first through hole of the first support plate 10 ( 11) and a fastening bolt through hole 111 through which the fastening bolt 310 is inserted is formed at a position corresponding to the second through hole 21 of the second support plate 20.

The vertical part 120 is provided at the center of the horizontal part 110, and a support bolt through hole 121 through which the support bolt 410 of the support unit 400 passes is formed, so that the support bolt 410 is connected to a pair of movable brackets. It passes through (200) and is fixed.

As shown in FIG. 5, the movable bracket 200 consists of a pair that is in close contact with one side and the other side of the connection bracket 100, respectively, and is composed of a support plate 210 and a support wall 220 and has an approximately 'L' shape. It is prepared as follows.

The support plate 210 is in close contact with the connection bracket 100 and has a nut insertion portion 211 formed to be movable in the longitudinal direction after the fastening nut 320 is inserted.

The nut insertion portion 211 is provided in the form of a long hole, and both sides are formed in a longitudinal plane shape, so that the planar shape formed on both sides of the fastening nut 320 is supported and rotation of the fastening nut 320 is prevented. The longitudinal movement of the fastening nut 320 is guided. More precisely, when the movable bracket 200 moves to release the anti-loosening function of the anti-loosening spring 330, which will be described later, the movement of the movable bracket 200 is guided.

In addition, one of the two sides of the nut insertion portion 211 is provided with a bent end support groove 212 that is recessed so that the variable bent end 332 of the anti-loosening spring 330, which will be described later, is inserted.

The support wall 220 is provided perpendicular to the support plate 210, is in close contact with the vertical portion 120, and has a slide hole 221 formed to enable movement in the longitudinal direction after the support bolt 410 is inserted.

The support unit 400 penetrates the vertical portion 120 and the support wall 220 so that the movable bracket 200 can be fixed to the connection bracket 100 while supporting the flange portion 325 of the fastening nut 320. It is fastened and consists of a support bolt 410, a first support nut 420, and a second support nut 430.

The support bolt 410 is provided in the shape of a pin with a thread formed on the outer peripheral surface. For example, it may be a stud bolt. The first support nut 420 and the second support nut 430 are screwed to one end and the other end to form a vertical portion. Tighten between (120) and the support wall (220).

The first support nut 420 and the second support nut 430 are respectively fastened to one end and the other end of the support bolt 410 to fix the movable bracket 200 to the connection bracket 100. However, in order to move the movable bracket 200, the first support nut 420 and the second support nut 430 are fastened to the support bolt 410, but may be loosely fastened, and the movable bracket 200 is connected to the connection bracket 100. ) It is preferable that it is loosely fastened only to the extent of allowing movement of the movable bracket 200 without being separated from it.

The fastening unit 300 is provided to fix the support plates 10 and 20, the connection bracket 100, and the movable bracket 200, and includes a fastening bolt 310, a fastening nut 320, and an anti-loosening spring 330. ) is composed of.

The fastening bolt 310 penetrates the through holes 11 and 21 of each support plate 10 and 20 and the fastening bolt through hole 111 of the connection bracket 100 and then is inserted into the nut insertion portion of the mobile bracket 200. It is fastened to the fastening nut 320 supported on 211, and the head of the fastening bolt 310 is located outside the support plates 10 and 20.

As shown in FIGS. 7 and 8, the fastening nut 320 may be provided in the form of a hexagonal nut, has a flat shape on both sides, and is inserted into the nut insertion portion 211 to be rotated and fixed to the connection bracket 100. settles in

This fastening nut 320 has a fastening part 321 with a thread formed on one side so that the fastening bolt 310 is screwed, and a fastening prevention spring 330 for tightening the fastening bolt 310 on the other side. ) is provided with an insertion portion 322 formed by expanding from the.

In addition, the fastening nut 320 is formed to protrude radially outward at the other end, is formed along the circumference and is in close contact with the connection bracket 100, and has a flange portion interposed between the connection bracket 100 and the movable bracket 200. (325) is provided.

As the flange portion 325 is supported between the connection bracket 100 and the moving bracket 200, the fastening nut 320 is not separated from or separated from the nut insertion portion 211, and supports the connection bracket 100. Since the area can be secured, the support plates 10 and 20 and the connection bracket 100 are stably fixed.

The anti-loosening spring 330 is provided in the form of a coil where one end is fixed inside and the other end protrudes to the outside and is supported by the movable bracket 200. It is wound around the fastening bolt 310 and provides an anti-loosening function.

This anti-loosening spring 330 is inserted and disposed in the insertion portion 322 of the fastening nut 320, and is bent at one end and inserted into the fixing groove 324 formed inside the fastening nut 320 to be fixed. It has a bent end 331, and a movable bent end that is bent at the other end, passes through the through hole 323 formed in the fastening nut 320, is exposed to the outside, and is supported by the movable bracket 200.

At this time, the fixed bent end 331 and the movable bent end are preferably located on both sides of the anti-loosening spring 330 to facilitate assembly.

The insertion portion 322 must have an anti-loosening spring 330 inserted therein so that the diameter can be expanded when the variable bending end 332 moves according to the movement of the movable bracket 200, so the inner diameter of the insertion portion 322 It is preferable that the diameter is larger than the outer diameter of the expanded anti-loosening spring 330.

The fixing groove 324 is recessed at the other end of the fastening nut 320 and the fixed bent end 331 is inserted, and the fixed bent end 331 is inserted into the fixing groove 324 of the fastening nut 320. As the other end of the fastening nut 320 comes into close contact with the connection bracket 100, the fixed bent end 331 is inserted into the fixing groove 324 and fixed in position.

The passing hole 323 is formed by penetrating from the insertion portion 322 to the outside of the fastening nut 320, and is exposed to the outside after the variable bent end 332 is inserted, forming a bent end support groove ( 212).

However, the through hole 323 has a wider width so that the variable bent edge 332 can move when the variable bent edge 332 is supported by the bent edge support groove 212 and the movable bracket 200 moves in the longitudinal direction. is formed

As the movable bracket 200 is moved in the longitudinal direction, the other end of the anti-loosening spring 330 is moved and loosened, and the anti-loosening function is released.

Referring to FIG. 8, a method of installing a connection device for a tubular support and a method of releasing the anti-loosening function of the anti-loosening spring 330 will be described.

First, while positioning the movable bracket 200 with the fastening nut 320 inserted in the connection bracket 100, the connection bracket 100 and the pair of movable brackets 200 are fixed with the support unit 400.

Next, with the first support plate 10 and the second support plate 20 arranged adjacent to each other, a connection bracket 100 is attached to the inner surface of the first support plate 10 and the second support plate 20. When the two support plates 10 and 20 and the connection bracket 100 are fixed by fastening the fastening bolt 310 to the fastening nut 320 in a close contact state, the state shown in FIG. 8 (a) is achieved.

At this time, the fastening bolt 310 passes through the through holes 11 and 21 of the support plates 10 and 20 and the fastening bolt through hole 111 of the connection bracket 100 and then is fastened with the fastening nut 320. The anti-loosening spring 330 built into the fastening nut 320 is screwed to the fastening part 321 of the fastening nut 320, and loosening from the fastening nut 320 is prevented by the tightening force of the anti-loosening spring 330. .

In addition, the anti-loosening spring 330 is preferably inserted in a helically compressed state (330a) inside the fastening nut 320 so as to provide a tightening force to the fastening bolt 310, and is compressed in the helical direction. The diameter is reduced to provide tightening force to the fastening bolt 310.

At this time, the variable bent end 332 of the anti-loosening spring 330 passes through the through hole 323 of the fastening nut 320 and is supported in the bent end support groove 212 of the movable bracket 200.

In addition, the support unit 400 is located at the tightening position at one end of the slide hole 221, and when installed on a tubular support, one end of the slide hole 221 is located at the upper side and the other end is located at the lower side, so that the movable bracket ( The movable bracket 200 moves downward according to the gravity of 200, and one end of the slide hole 221 is supported by the support unit 400.

Next, when the moving bracket 200 is moved in the longitudinal direction as shown in (b) of Figure 8, the support unit 400 is positioned at the release position at the other end of the slide hole 221, and the fastening nut 320 is inserted into the nut. It moves along the portion 211 to the opposite end. Then, as the anti-loosening spring 330 is relaxed in the spiral direction, the diameter of the anti-loosening spring 330 is expanded (330b), the tightening force tightening the fastening bolt 310 is released, and the anti-loosening spring 330 is released. The loosening prevention function is canceled.

That is, the anti-loosening spring 330 prevents the fastening bolt 310 from loosening by tightening the fastening bolt 310 in a reduced diameter state (330a) before the movable bracket 200 moves, and the movable bracket 200 When this movement causes the variable bent end 332 to move, the diameter becomes expanded (330b) and the loosening prevention function of the fastening bolt 310 is released.

Additionally, various embodiments of the slide hole 221 are shown in FIG. 9 .

First, (a) in Figure 9 shows a tightening position in which the slide hole 221 is provided in the shape of a long hole in the longitudinal direction, into which the support bolt 410 is inserted and moves, and the support unit 400 is one end of the slide hole 221. When positioned at (221a), the anti-loosening spring 330 is wrapped around the thread of the fastening bolt 310 to provide tightening force.

And, when the support unit 400 is located at the release position 221b, which is the other end of the slide hole 221, the diameter of the anti-loosening spring 330 expands, the tightening force applied to the fastening bolt 310 is reduced, and the loosening occurs. The prevention function is canceled.

The slide hole 222 shown in (b) of FIG. 9 is formed to be inclined toward the support plate 210 from the center to both ends, so that the support bolt 410 cannot move without an external force supporting the movable bracket 200 toward the connection bracket 100. It is located at both ends.

Likewise, when the support unit 400 is located at the tightening position 222a, which is one end of the slide hole 222, the anti-loosening spring 330 is wound around the thread of the fastening bolt 310 to provide tightening force.

In addition, when the support unit 400 is located at the release position 222b, which is the other end of the slide hole 222, the diameter of the anti-loosening spring 330 expands, the tightening force applied to the fastening bolt 310 is reduced, and the loosening occurs. The prevention function is canceled.

However, in order for the support unit 400 to move from the tightened position 222a of the slide hole 222 to the released position 222b, an external force is required to press the movable bracket 200 toward the connection bracket 100, and the support unit 400 Even when the slide hole 222 is located in the release position 222b, the slide hole 222 is formed at an angle, so that the tightening position of the slide hole 222 is not possible without an external force pressing the movable bracket 200 toward the connection bracket 100 ( 222a) cannot be moved.

Therefore, when the worker separates the connection device for the tubular support, the operator presses the movable bracket 200 toward the connection bracket 100 and places the support unit 400 in the release position 222b of the slide hole 222 to move the movable bracket 200. ), the moving bracket (200) remains moved even if you do not hold it, making the separation process easier.

In addition, the slide hole 223 shown in (c) of FIG. 9 is formed in the shape of a long hole in the longitudinal direction, with both ends bent toward the support plate 210, so that the movable bracket 200 is connected to the bracket 100. The support bolts 410 are located at both ends without external force supporting them to the side. That is, the slide hole 223 is formed in a 'ㄷ' shape that opens toward the connection bracket 100.

Likewise, when the support unit 400 is located at the tightening position 223a, which is one end of the slide hole 223, the anti-loosening spring 330 is wound around the thread of the fastening bolt 310 to provide tightening force.

And, when the support unit 400 is located at the release position 223b, which is the other end of the slide hole 223, the diameter of the anti-loosening spring 330 expands, the tightening force applied to the fastening bolt 310 is reduced, and the loosening occurs. The prevention function is canceled.

However, in order for the support unit 400 to move from the tightened position 223a of the slide hole 223 to the released position 223b, an external force is required to press the movable bracket 200 toward the connection bracket 100, and the support unit 400 Even when the slide hole 223 is located in the release position 223b, the slide hole 223 is bent, so that the slide hole 223 cannot be tightened at the tightening position 223a without an external force pressing the movable bracket 200 toward the connection bracket 100. ) cannot be moved.

Therefore, when the worker separates the connection device for the tubular support, the operator presses the movable bracket 200 toward the connection bracket 100 and places the support unit 400 in the release position 223b of the slide hole 223 to move the movable bracket 200. ), the moving bracket (200) remains moved even if you do not hold it, making the separation process easier.

In addition, in the drawing, it is shown that only one through hole (11, 21) through which the fastening unit 300 is fastened is formed in the support plates (10, 20), but the through holes (11, 21) are formed in the support plates (10, 20). It may be formed in plural pieces spaced apart in the height direction, and a fastening bolt through hole 111 and a nut insertion portion 211 are provided on the connection bracket 100 and the movable bracket 200 to correspond to the through holes 11 and 21, respectively. is formed and the fastening unit 300 is fastened, or the connecting bracket 100, the moving bracket 200, and the fastening unit 300 are provided in a number corresponding to the number of through holes 11 and 21 and fastened to each. It may be possible.

However, when a plurality of fastening bolt through holes 111 are formed in one connection bracket 100 and a plurality of nut insertion portions 211 are formed in one movable bracket 200, one movable bracket 200 is used. By moving it, the anti-loosening function of the anti-loosening springs 330 inserted into the plurality of fastening nuts 320 can be released at the same time, making installation and maintenance of the connection device for the tubular support convenient.

According to embodiments of the present invention having such a shape and structure, the fastening nut is inserted into the nut insertion portion and fixed for rotation, so that it can be fastened without separately holding the fastening nut when fastening the fastening bolt and the fastening nut, making assembly and installation easy. It works.

In addition, as an anti-loosening spring is provided inside the fastening nut to prevent loosening of the fastening bolt, the fastening force can be maintained even when vibration is applied periodically or aperiodically, and the anti-loosening spring can be installed by a simple operation of moving the moving bracket when necessary. It has the effect of easily disabling the loosening prevention function.

In particular, the anti-loosening spring is fixed to the fastening nut without a separate support structure after being inserted into the fastening nut, making assembly and maintenance easy, and has the effect of significantly shortening construction time.

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, as long as it is within the scope of the purpose of the present invention, all of the components may be operated by selectively combining one or more of them.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

10: first support plate 11: first through hole
20: second support plate 21: second through hole
100: Connection bracket 110: Horizontal part
111: Fastening bolt through hole 120: Vertical part
121: Support bolt through hole 200: Mobile bracket
210: support plate 211: nut insertion portion
212: Bend end support groove 220: Support wall
221, 222, 223: Slide hole 300: Fastening unit
310: fastening bolt 320: fastening nut
321: fastening part 322: insertion part
323: Passing hole 324: Fixing groove
325: Flange portion 330: Anti-loosening spring
331: fixed bending edge 332: variable bending edge
400: support unit 410: support bolt
420: 1st support nut 430: 2nd support nut

Claims (12)

In the connection device for a tubular support that secures between two support plates among a plurality of support plates constituting the tubular support when the two support plates are arranged adjacent to each other,
A connection bracket having one side in close contact with the inner surface of the first support plate and the other side having a horizontal portion in close contact with the inner surface of the second support plate;
A pair of moving brackets each in close contact with one side and the other side of the connection bracket and having a nut insertion portion; and
It includes a fastening unit composed of a fastening nut that is inserted into the nut insertion part and fixed for rotation and seated on the connection bracket, and a fastening bolt that penetrates the support plate and the connection bracket and is fastened to the fastening nut,
The connection bracket is,
A vertical portion is provided at the center of the horizontal portion and has a support bolt through hole through which the support bolt of the support unit passes, and the support bolt is fixed by passing through the pair of movable brackets,
The moving bracket is,
a support plate that is in close contact with the connection bracket and has a nut insertion portion formed to be movable in the longitudinal direction after the fastening nut is inserted; and
A support wall provided perpendicular to the support plate, in close contact with the vertical portion, and having a slide hole formed to be movable in the longitudinal direction after the support bolt is inserted,
The fastening unit includes an anti-loosening spring, which is provided in the form of a coil with one end fixed inside and the other end protruding to the outside and supported by the movable bracket, wound around the fastening bolt and providing an anti-loosening function,
A connection device for a tubular support, wherein the other end of the anti-loosening spring is moved and loosened as the movable bracket is moved in the longitudinal direction, and the anti-loosening function is released.
delete delete delete delete According to claim 1,
The fastening nut is,
A fastening part on one side of which a screw thread is formed so that the fastening bolt is screwed; and
an insertion part formed by extending from the fastening part so that the anti-loosening spring for tightening the fastening bolt is built into the other side;
A connection device for a tubular support, characterized in that it has a.
According to claim 6,
The anti-loosening spring is,
a fixed bent end bent at one end and inserted into and fixed to a fixing groove formed inside the fastening nut; and
a movable bent end that is bent at the other end, passes through a through hole formed in the fastening nut, is exposed to the outside, and is supported by the movable bracket;
A connection device for a tubular support, characterized in that it has a.
According to claim 7,
The moving bracket is,
A connection device for a tubular support, characterized in that it is formed by being recessed on one side of the nut insertion portion and has a bent end support groove into which the movable bent end is inserted.
According to claim 1,
The nut insertion part,
A connection device for a tubular support, characterized in that it is provided in the shape of a long hole and both sides are formed in a flat shape to support the planes on both sides of the fastening nut.
According to claim 1,
The slide hole is,
A connection device for a tubular support, characterized in that it is provided in the shape of a long hole in the longitudinal direction and the support bolt is inserted and moved.
According to claim 1,
The slide hole is,
A connection device for a tubular support, characterized in that it is inclined toward the support plate from the center to both ends, so that the support bolts are located at both ends without an external force supporting the movable bracket toward the connection bracket.
According to claim 1,
The slide hole is,
A connection for a tubular support, which is formed in the shape of a long hole in the longitudinal direction, with both ends bent toward the support plate, so that the support bolts are located at both ends without an external force supporting the movable bracket toward the connection bracket. Device.

Images