KR20070118897A - Pipe fixing system and pipe fastening device - Google Patents

Abstract

A pipe clamping device and a pipe fastening device is provided to prevent release of a gear head bolt and improve preload by fitting a c-shaped spring washer between the gear head bolt and an entry. A pipe fixing system and a pipe fastening device comprises a cylindrical body(130), an entry(310), a fixing chip(340), and a bolt(320). The cylindrical body has a hole for a pipe to be fitted. The entry is embedded in an upper fitting groove of the upper part of the cylindrical body. The fastening chip tightly secures the pipe in the cylindrical body through a wedge. The bolt such as a gear head bolt, which is penetrated through the cylindrical body and the fastening chip, controls vertical movement of the fastening chip. A c-shaped spring washer(330) is fitted between the entry and the head of the bolt. A stop washer is fitted between the entry and the fastening chip.

Description

Pipe fixing system and pipe fastening device

1 is a cross-sectional view of a conventional pipe fixing device.

Figure 2 is a perspective view showing a pipe fixing device and a pipe fastener according to the present invention.

3 is an exploded perspective view of the present invention shown in FIG.

4 is a partial cross-sectional view of the present invention shown in FIG.

5 is a plan view and a partially enlarged view of the present invention shown in FIG.

Explanation of symbols on the main parts of the drawings

100: pipe fastener 110: external gear

120: handle 130: body (pipe fastener)

200: pipe 300: body (pipe fixing device)

305: Taper portion 310: Entry

311: entrance jaw 313: upper insertion groove

315: guide surface 317, 347: bolt hole

320: gear head bolt 330: spring washer

340: fixed chip 345: teeth

350: stop washer 360: guide wall

365: Jams

The present invention relates to a pipe fixing device capable of quickly and simply assembling and disassembling pipes used for water and sewage pipes, gas pipes, street lamps and signs around the road, and pipe fasteners for fastening pipes to the pipe fixing devices. In the pipe fixing device comprising a body having a tapered portion formed therein, a fixed chip having a bolt hole formed inside the tapered portion, and a bolt fastened through the bolt hole of the fixed chip, the bolt is a gear head. It relates to a pipe fastener consisting of a bolt, a pair of semi-circular bodies, and a pipe fastener formed of an external gear formed at the lower end of the body.

In general, there are water and sewage pipes, gas pipes, street lamps, signs, indicators, and the like, and billboards and advertisement towers have such a pipe connection structure. In addition, the screw structure is largely disadvantageous in that a lot of time and manpower is required for connection and disassembly.

On the other hand, plumbing joints are often welded or screwed when connecting pipes, and in the case of large pipes, rubber rings are put on the pipe connections and covered with an annular metal to be fastened with bolts. It is cumbersome because you have to work in reverse order when you lift and dismantle.

In particular, the installation, maintenance and dismantling of street lamps and signs on the road require promptness, and a fast and robust fastening device is required even when installing large water or gas pipes or emergency repairs.

As a solution for solving the above problems, there is a domestic patent application No. 10-2005-0008745 filed "pipe fixing device" filed by the applicant, the technical gist of the present invention, as shown in Figure 1, from bottom to top as a whole An entry in the body 10 into which the pipe 5 having the tapered portion 15 forming the inclined surface, which becomes narrower in diameter, is inserted, and the upper insertion groove 12 above the body 10 into which the pipe 5 is inserted. 20, the fixing chip 30 for firmly fixing the pipe 5 in the body 10, the bolt to penetrate the body 10 and the fixing chip 30 to adjust the fixed chip 30 up and down It is composed of (40) to omit a separate auxiliary work such as welding so that the pipe (5) can be quickly assembled or dismantled.

To explain the coupling and disassembly of the pipe fixing device, first, the pipe 5 to be fixed is gripped, and then inserted in close contact with a hollow portion in the center of the body 10, the pipe 5 is placed on the upper portion of the body 10. It slides in contact with the inner diameter of the formed entry 20 and is inserted into the body 10. When the pipe 5 reaches the locking jaw 17, the pipe 5 is no longer inserted and is fixed.

However, since the fixing alone is not strong enough to withstand the tensile force or other external force, the pipe 5 is fastened to the fixing chip 30 by fastening the bolt 40 and rotating the bolt 40 to fix the fixing chip 30. As it rises toward the entry 20, the fixing chip 30 may be wedged between the tapered portion 15 and the pipe 5 to firmly fix the pipe 5.

That is, when the pipe 5 starts to tighten the bolt 40 in the fixed state as described above, the bolt 40 is rotated in the tightening direction and the fixing chip 30 is the outer peripheral surface of the tapered portion (15) It rises in contact with the inner inclined surface of the side surface. At this time, as the fixed chip 30 rises, the outer circumferential surface of the fixed chip 30 rises while sliding the inner inclined surface of the side of the tapered portion 15, and the inner circumferential surface of the fixed chip 30 is the center of the pipe 5. By moving in the direction, the outer diameter of the pipe 5 is gradually tightened.

Then, after fixing the pipe 5 firmly by the wedge action of the fixing chip 30, stopping the tightening of the bolt 40, the pipe 5, the fixing chip 30 and the body 10 are integrally coupled The process is complete.

On the other hand, when separating the pipe (5) as the opposite process when the coupling, by loosening the bolt 40 to lower the fixed chip 30 by removing the wedge action of the fixed chip 30 to remove the pipe (5) Easily separated.

However, the above configuration also has the advantage that the pipe can be fixed and detached more easily and quickly than the conventional pipe fixing device, it is cumbersome to tighten or loosen the bolts 40, since usually three or more bolts 40 are used It takes a long time to fix and detach the pipe, and the space between the bolt 40 and the pipe 5 is inconvenient to use the power tool, so the fastening force is weak and the positions of the plurality of fixing chips 30 may be different from each other. Therefore, there was a problem in that the pipe 5 could be relaxed when tension or torsion was applied to the pipe 5.

The present invention has been made in order to solve the above problems, an object of the present invention is to configure the bolt used in the pipe fixing device to the gear head bolt, fastening the pipe using a pipe fastener formed with an outer gear at the lower end By separating, the number of bolts can be rotated at once to minimize the time for fastening and dismounting the pipes, maximizing the holding force, and evenly applying the force to each bolt, even if tension or torsion is applied to the fixed pipes. Provided are pipe anchors and pipe fasteners in which pipes do not easily relax.

In order to achieve the above object, the present invention provides a cylindrical body into which a pipe is inserted, an entry in the upper insertion groove of the upper part of the body, and firmly fixing the pipe by a wedge action inside the body. In the pipe fixing device consisting of a fixed chip, and a bolt for penetrating the body and the fixed chip to move the fixed chip up and down, characterized in that the bolt is a gear head bolt.

In addition, a U-shaped spring washer is inserted between the entry and the head of the bolt.

In addition, a stop washer is inserted between the entry and the fixed chip.

The fixing chip is adhesively fixed to the tapered portion of the body.

On the other hand, the pipe fastener according to the invention is characterized in that it consists of a pair of semi-cylindrical body, the outer gear formed on the outer lower end of the body.

Here, the semi-cylindrical body outer center is characterized in that the handle is installed.

In addition, the outer gear is characterized in that the semi-cylindrical shape is formed over the entire body of the lower end.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the pipe fixing device and pipe fastener according to the present invention in detail.

Figure 2 is a perspective view showing a pipe fixing device and a pipe fastener according to the present invention, Figure 3 shows an exploded perspective view of the present invention shown in Figure 2, Figure 4 shows a partial cross-sectional view of the present invention shown in Figure 2 5 is a plan view and a partially enlarged view of the present invention shown in FIG.

First, the pipe fixing device according to the present invention includes a cylindrical body 300 into which the pipe 200 is inserted, an entry 310 installed in the upper insertion groove 313 of the upper part of the body 300, The fixed chip 340 for firmly fixing the pipe 200 by the wedge action in the body 300 and the fixed chip 340 penetrates the body 300 and the fixed chip 340 up and down. In the pipe fixing device consisting of a bolt for movement control, the bolt is characterized in that the gear head bolt 320 is configured to facilitate the tightening and loosening action.

More specifically, the upper portion of the body 300 is formed with a hollow portion into which the pipe 200 is inserted, and an upper insertion groove 313 and an inlet jaw 311 in which an entry 310 is built around the hollow portion. Is formed.

In addition, a straight guide surface 315 extending downward from the upper insertion groove 313 and the inlet jaw 311 is formed, and extends downward from the end of the guide surface 315 The tapered portion 305 forming the inclined surface is integrally formed.

In addition, a fixing chip 340 for firmly fixing the pipe 200 is installed inside the body 300. The fixing chip 340 has a wide lower surface and a narrow upper surface, so that the inner circumferential surface is a pipe ( It is raised or lowered along the 200, the outer peripheral surface has a structure that can be raised or lowered in accordance with the inner inclined surface of the tapered portion 305, upper and lower surfaces so that the gear head bolt 320 can penetrate the upper and lower surfaces. The bolt hole 347 is formed in the center.

A tooth 345 is formed on the inner circumferential surface of the fixing chip 340 to apply a strong wedge action in contact with the pipe 200 to further strengthen the coupling force with the pipe 200, and the gear head bolt 320 is fixed. The chip 340 is fastened to the bolt hole 347 of the fixed chip 340 through the bolt hole 317 of the entry 310 from the outside of the body to rise or descend along the pipe 200.

At this time, since the fixing chip 340 is shaken from side to side in the body 300 when fastening and fixing the pipe 200, the fixing chip 340 is twisted so that the pipe 200 can be coupled properly fixed There is a possibility that tension or torsion is applied to the pipe 200. Accordingly, the fixing chip 340 is fixed to the tapered portion 305 inside the body by using an adhesive, and then the gear head bolt 320 is rotated to separate when the pipe 200 is fastened so that the pipe 200 is separated. ) Can be fixed in a completely stable state. In addition, the fixing chip 340 and the gear head bolt 320 is preferably installed three for the stable structure, but if the diameter of the pipe 200 is smaller than 30mm, two may be installed. Do.

On the other hand, it is preferable to insert the spring washer 330 between the upper surface of the entry 310 and the head of the gear head bolt 320, and then fasten the gear head bolt 320, the applicant according to the present invention pipe As a result of manufacturing and testing the fixing device, when a tensile force is applied to the pipe 200, an elastic force of about 3 mm was secured by inserting the spring washer 330 and about 0.5 mm by installing the entry 310. . At this time, the spring washer 330 is preferably manufactured in a U-shape in order to secure a stronger elastic force and to prevent loosening of the gear head bolt (320).

In addition, between the entry 310 and the fixed chip 340, it is preferable to insert the stop washer 350 in order to prevent the deformation of the pipe 200 due to the rising of the fixed chip 340 more than necessary. Do.

Other configurations of the pipe fixing device according to the present invention are the same as those described in the domestic patent application No. 10-2005-0008745 "pipe fixing device" shown in Figure 1 will be omitted.

Next, the pipe fastener 100 according to the present invention, as shown in Figure 3, is composed of a pair of semi-cylindrical body 130 and the outer gear 110 formed on the outer lower end of the body 130. .

In more detail, the pipe fastener 100 is a tool for fastening the pipe 200 to the pipe fixing device according to the present invention described above, and corresponds to the gear shape of the gear head bolt 320 of the pipe fixing device. The outer gear 110 is formed to be formed on the outer lower end of the semi-cylindrical body 130, more preferably, the outer gear 110 is formed to be formed around the lower end of the semi-cylindrical body 130.

As will be described later, after inserting the pipe 200 into the pipe fixing device and then insert the pipe fastener 100 in the space between the gear head bolt 320 and the pipe 200 and rotates the gear head bolt 320 is rotated While the fixing chip 340 is raised in the direction of the entry 310, the pipe 200 is fixed. If the length of the pipe 200 to be fixed is long, it is inconvenient to fit the pipe fastener 100 so that the body 130 of the pipe fastener 100 is semi-cylindrical to make two pieces to be inserted from the side It is.

In addition, it is preferable that the handle 120 is formed at the center of the outer side of the semi-cylindrical body 130 so that the pipe fastener 100 can be more easily installed and rotated.

Hereinafter, a process of fixing and dismantling a pipe using a pipe fixing device and a pipe fastener according to the present invention will be described in detail with reference to the accompanying drawings.

First, the entry 310 is fixed to the upper insertion groove 313 in the body 300 of the pipe fixing device, and the fixing chip 340 is loosely coupled by the gear head bolt 320 in the body 300. After holding the pipe 200 to be fixed in the state, and inserted into close contact with the hollow portion in the center of the body 300, the pipe 200 slides in contact with the inner diameter of the entry 310 formed on the body 300 When the pipe 200 is inserted into the body 300 and the pipe 200 passes through the guide wall 360 above the locking jaw 365 and reaches the locking jaw 365, the pipe 200 can not be inserted any more and an entry 310 is received. ) Is fixed by contact with the guide wall 360 and the locking step 365.

However, the pipe 200 fixed by the contact with the entry 310, the guide wall 360 and the locking jaw 365 is not strong enough to withstand tensile or other external forces, so that the gear head bolt ( Positioning the pipe fastener 100 between the 320 and the pipe 200, the external gear 110 formed on the gear lower bolt 320 and the outer lower end of the body 130 of the pipe fastener 100 After fitting so as to engage with each other, turning the knob 120 formed in the center of the body 130 outside the clockwise to rotate the gear head bolt 320, the fixed chip 340 is raised toward the entry 310, The fixing chip 340 may be firmly fixed to the pipe 200 by the wedge action between the tapered portion 305 and the pipe 200.

That is, when the pipe 200 starts to turn the handle 120 in the clockwise direction by coupling the pipe fastener 100 in a fixed state inserted into the body 300 as described above, two or three gear head bolts As the 320 is tightened at the same time, the fixing chip 340 coupled with the gear head bolt 320 is raised while its outer peripheral surface is in contact with the inner inclined surface of the side of the tapered portion 305.

At this time, as the fixed chip 340 rises, the outer circumferential surface of the fixed chip 340 rises while sliding the inclined surface of the tapered portion 305, and the inner circumferential surface of the fixed chip 340 moves toward the center of the pipe 200. By moving, the outer diameter of the pipe 200 is gradually tightened.

That is, as the two or three gear head bolts 320 are tightened at the same time, the fixing chip 340 rises at the same speed, thereby sandwiching the tapered portion 305 between the inclined surface and the outer diameter of the pipe 200, thereby creating a strong wedge. In this case, two or three fixed chips 340 are placed at the same position, so that an unbalanced external force such as torsion does not work on the pipe 200.

At this time, the stop washer 350 installed between the entry 310 and the fixed chip 340 serves to prevent the fixed chip 340 from rising to the entry 310 anymore, so that excessive force is applied to the pipe ( 200) should not be damaged.

Subsequently, after firmly fixing the pipe 200 by the wedge action of the fixing chip 340, stopping the rotation of the handle 120 of the pipe fastener 100 and separating the pipe fastener 100, the pipe 200, The fixing chip 340 and the body 300 is integrated to finish the coupling process of the pipe fixing device according to the present invention.

On the other hand, when separating the pipe 200 from the pipe fixing device according to the present invention as the opposite process when the coupling, between the gear head bolt 320 and the pipe 200 to place the pipe fastener 100 And, the gear of the gear head bolt 320 and the outer gear 110 formed on the outer lower end of the body 130 of the pipe fastener 100 is fitted so as to engage with each other, the handle formed in the center (outside) of the body 130 ( When the head 120 is rotated counterclockwise, the gear head bolt 320 is rotated and the fixing chip 340 is lowered, and the fixing chip 340 releases the wedge action so that the pipe 200 can be easily separated.

The above embodiment is described with respect to the most preferred example of the present invention, but is not limited to the above embodiment, and can also be used in the fixing device for heat insulation pipes formed with a vacuum portion for thermal insulation inside the body of the pipe fixing device, It will be apparent to those skilled in the art that various modifications are possible without departing from the spirit of the invention.

According to the pipe fixing device and the pipe fastener according to the present invention configured as described above, the bolt used in the pipe fixing device is composed of a gear head bolt, by fastening and separating the pipe using a pipe fastener formed with an external gear at the lower end Minimize the time to fasten and detach the pipe by rotating a number of bolts at once, and by fixing the pipe by rotating the handle formed on the pipe fastener can be easily fixed manually or automatically, maximizing the fixing force It is possible to apply even force to each bolt, so that there is no tension or torsion on the pipe.

In addition, by inserting the U-shaped spring washer between the gear head bolt and the entry, a stronger elastic force can be ensured, the gear head bolt can be prevented from loosening, and the stop washer can be used to prevent damage to the pipe. As a result, the pipe fixing device and the pipe can be used more safely in the long term.

Claims (7)

A cylindrical body into which a pipe is inserted, an entry in the upper insertion groove of the upper part of the body, a fixing chip for firmly fixing the pipe by a wedge action in the interior of the body, and penetrating the body and the fixing chip In the pipe fixing device consisting of a bolt for moving the fixed chip up and down by And the bolt is a gear head bolt. The method of claim 1, A pipe holding device, characterized in that the U-shaped spring washer is inserted between the entry and the head of the bolt. The method of claim 1, Pipe stopper, characterized in that the stop washer is inserted between the entry and the fixed chip. The method of claim 1, The fixing chip is a pipe fixing device characterized in that the adhesive fixed to the tapered portion of the body. A pipe fastener, characterized in that consisting of a pair of semi-cylindrical body, and an external gear formed on the outer lower end of the body. The method of claim 5, Pipe fasteners, characterized in that the handle is installed in the center of the outer body of the semi-cylindrical. The method according to claim 5 or 6, The outer gear is a pipe fastener, characterized in that the semi-cylindrical is formed over the entire body of the lower end.

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