KR200419683Y1 - A structure of warm water pipe for electric boiler - Google Patents

Abstract

The present invention relates to a structure of a hot water pipe inserted with a heating wire, and more particularly, it can be used semi-permanently because it can prevent the rupture of the sealing device of the hot water pipe and the hot water pipe itself by accommodating the internal pressure change of the hot water pipe. Of course, it relates to the structure of the hot water pipe is inserted into the heating wire more convenient to maintain.

The structure of the hot water pipe inserted with the heating wire of the present invention is provided with a pressure receiving device and can be used semi-permanently by accommodating the internal pressure change of the hot water pipe to prevent the rupture of the sealing device and the hot water pipe itself.

In addition, a check means connected to each of the pressure receiving device and the power line is provided to detect leakage of the heating water and short-circuit the power supply, thereby greatly increasing safety, thereby achieving a more convenient maintenance.

Hot water pipes, seals, nipples, pressure receivers, earth leakage breakers

Description

A structure of warm water pipe for electric boiler}

"A" and "I" of Figure 1 is a schematic diagram showing the structure of a hot water pipe inserted with a conventional heating wire.

Figure 2 is a schematic diagram showing the structure of a hot water pipe inserted with a heating wire according to an embodiment of the present invention.

Figure 3 is a partial cross-sectional view schematically showing the structure of the hot water pipe inserted with a heating wire according to a preferred embodiment of the present invention.

Figure 4 is an exploded perspective view of the pressure receiving device according to an embodiment of the present invention.

5 is a cross-sectional view according to a preferred embodiment of the present invention.

6 is an operation according to a preferred embodiment of the present invention.

"A" and "I" of Figure 7 is a schematic operation of the inspection means according to an embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

10: structure of conventional hot water pipe 12: hot water pipe

14: heating wire 15: power wire

15a: joint means 20: sealing device

22: nut 23: connecting piece

24,24 ': Sealing cap 26: Cap nut

28: cap 30: structure of the hot water pipe of the present invention

32: fastening portion 40: connecting means

42: first horn 44: hose

46: second nipple 48: connection cap

50: pressure receiving device 52: case

54 air outlet 56 elastic member

58: corrugated pipe 60: hose

70: inspection means 72: detection box

74: earth leakage breaker 76a, 76b: seam

The present invention relates to a structure of a hot water pipe inserted with a heating wire, and more particularly, it can be used semi-permanently because it can prevent the rupture of the sealing device of the hot water pipe and the hot water pipe itself by accommodating the internal pressure change of the hot water pipe. Of course, it relates to the structure of the hot water pipe is inserted into the heating wire more convenient to maintain.

In general, many proposals have been made on the structure of hot water pipes in which heating water and heating wires are inserted, Utility Model Registration No. 20-0172037, Utility Model Registration No. 20-0326909, and Utility Model Application No. No. 20-2005-0035441 is known, and with reference to this, a conventional hot water pipe structure will be described below.

"A" and "B" of FIG. 1 are schematic cross-sectional views showing the structure of a hot water pipe inserted with a conventional heating wire.

First, referring to "A", the heating water and the heating wire 14 are inserted into the hot water pipe 12, and an airtight device 20 is provided at the end thereof to prevent the heating water from leaking out. . In addition, the heating wire 14 is connected to a power line 15 for supplying external power.

At this time, the hot water pipe 12 is formed of a synthetic resin pipe of a relatively thin thickness to achieve the purpose of heating.

Here, the sealing device 20 is a variety of structures have been proposed, but usually a screw portion is formed therein and is fastened so as not to be separated from the end of the hot water pipe 22, one side is the inner screw portion of the nut 22 A connecting piece 23 having a first spiral portion and a second spiral portion formed on the other side thereof, a sealing cap 24 and 24 'fitted inside the connecting piece 23, and the sealing cap 24 and 24'. It comprises a cap nut 26 for fastening close to the cap 28 and the cap 28 to block the end of the cap nut 26.

The conventional hot water pipe 12 having the above structure is heated by heating water by the heating wire 14 when power is applied to the heating wire 14 inserted therein. At this time, if the heating for a long time by the excessive heat of the heating wire 14 will also excessively increase the pressure of the heating water.

Here, referring to "b", a part of the hot water pipe 12, which is a thin pipe of synthetic resin material, is broken by the pressure of excessively heated heating water, but not only the hot water pipe 12 but also a sealing device. (20) There is also a fundamental problem that can be broken.

The present invention has been devised to solve the above problems, it is possible to prevent the rupture of the sealing device of the hot water pipe and the hot water pipe itself by accommodating the internal pressure change of the hot water pipe can be used semi-permanently as well as more maintenance It is to provide a structure of a hot water pipe inserted with a convenient heating wire.

The present invention to achieve the above object is a fastening portion formed on one side of the sealing device or hot water pipe; Connecting means coupled to the fastening part; And a pressure receiving device fastened to the connecting means and configured to contract / expand according to the internal pressure of the hot water pipe.

Preferably, the pressure receiving device is provided with a space therein, one side is open to fasten to the connecting means is formed with a screw portion, the other side is formed with an air outlet; An elastic member inserted into the case; A bellows-shaped corrugated tube inserted into the case and supported by the elastic member; And connected to the air outlet is configured to include a hose provided to guide the air to the heating water to the outside.

In addition, a check means for short-circuit the power supply by detecting the leak of the heating water due to breakage of the corrugated pipe of the pressure receiving device is further provided.

Preferably, the check means is a sensing box that is inserted into the end of the hose for inducing and discharging the air and heating water of the pressure receiving device, the heating wire inserted into the hot water pipe and the connected power line; And an earth leakage breaker that is installed on the power line and shuts off power when an earth leakage occurs in the sensing box.

Hereinafter, with reference to the accompanying drawings will be described in more detail the structure of the hot water pipe is inserted the heating wire of the present invention.

Figure 2 is a schematic diagram showing the structure of a hot water pipe inserted with a heating wire according to an embodiment of the present invention.

Referring to the drawings, the hot water pipe 12 in which the heating water and the heating wire 14 is inserted therein is buried at the bottom, and both ends thereof are extended to the outside and blocked by the sealing device 20. In addition, it can be seen that the pressure receiving device 50 is fastened to the sealing device 20 through the connecting means 40, and when the water in the hot water leaks due to breakage of the pressure receiving device 50, It is provided with a check means 70 provided so as to quickly detect and short the heating wire (14).

At this time, the pressure receiving device 50 and the check means 70 will be described in more detail below.

3 is a partial cross-sectional view schematically showing the structure of a hot water pipe inserted with a heating wire according to a preferred embodiment of the present invention, Figure 4 is an exploded perspective view of the pressure receiving device according to a preferred embodiment of the present invention.

Referring to the drawings, the structure 30 of the hot water pipe inserted the heating wire of the present invention is largely fastening portion 32 formed on one side of the sealing device 20 or the hot water pipe 12, the fastening portion 32 It comprises a connecting means 40 coupled to the pressure receiving device 50 is fastened to the connecting means 40.

In addition, the inside of the hot water pipe 12 is provided with a joint means 15a, which connects the heating wire 14 inserted into the hot water pipe 12 and the power line 15 for supplying external power to each other. As a result, it is preferable to connect the heating wire 14 and the power supply line 15 in the interior of the hot water pipe 12 by waterproofing.

The fastening portion 32 is preferably formed with a female screw, in the present invention is shown in the case formed on one side of the sealing device 20, it is obvious that it can also be provided on one side of the hot water pipe (12). Since the structure of the sealing device 20 has been mentioned in the prior art will be omitted in the present invention.

The connecting means 40 is provided to connect the fastening portion 32 and the pressure receiving device 50 formed on one side of the sealing device 20, it can implement a variety of shapes and lengths depending on the installation place There will be. The connecting means 40 is a first nipple 42 screwed to the fastening portion 32, a hose 44, the upper portion is fitted to the first nipple 42, the lower portion of the hose 44 is fitted It is preferable to include a second cap 46 and the connection cap 48 is screwed to the second pinch 46.

The pressure receiving device 50 is implemented to be contracted / expanded in accordance with the internal pressure of the hot water pipe 12 is fastened to the connecting means 40, which is a case 52, the space provided therein, the case 52 includes an elastic member 56 inserted into the inside, a corrugated pipe 58 carried by the elastic member 56, and a hose 60 capable of inducing and discharging air and heating water to the outside.

The case 52 is provided with a space therein, one side is open to be fastened to the connecting means 40 is formed with a screw portion, the other side is preferably blocked to form an air outlet (54).

The elastic member 56 is a conventional spring, is inserted into the case 52 and positioned below.

The corrugated pipe 58 is inserted into the case 52 and is supported by the elastic member 56, and has a bellows shape in which one side is open to facilitate contraction and expansion by accommodating it according to the pressure of the hot water pipe 12. Has That is, the bellows corrugated pipe 58 is formed to accommodate the pressure discharged from the hot water pipe 12 and the heating water at the same time.

The hose 60 is connected to the bottom air outlet 54 of the case 52 and is provided to induce and discharge air or heating water to the outside. In other words, it is implemented to facilitate the contraction and expansion of the corrugated pipe 58 by communicating air into the case 52 and to induce and discharge the heating water when the corrugated pipe 58 breaks when the water is broken. .

5 is a cross-sectional view according to a preferred embodiment of the present invention, Figure 6 is an operation according to a preferred embodiment of the present invention.

First, referring to FIG. 5, the first nipple 42, the hose 44, the second nipple 46, and the connection cap 48 are sequentially connected to the fastener 32 formed on one side of the sealing device 20. It is coupled to, and it can be seen that the case 52 in which the elastic member 56 and the corrugated pipe 58 are inserted into the connection cap 48 is fastened. That is, it is to be noted that the hot water pipe 12 and the corrugated pipe 58 are configured to communicate with each other, and the corrugated pipe 58 is contracted by being touched by the elastic member 56. It is also apparent that the hose 60 connected to the air outlet 54 extends.

Here, referring to Figure 6, as the internal pressure of the hot water pipe 12 is increased, the pressure and heating water is discharged through the fastening portion 32 formed in the sealing device 20, it is communicated through the connecting means 40 The corrugated pipe 58 of the pressure receiving device 50 is expanded to receive the pressure and the heating water of the hot water pipe 12. Of course, the expansion length of the corrugated pipe 58 is naturally variable according to the strength of the pressure.

Then, when the pressure is lowered inside the hot water pipe 12, the corrugated pipe 58 will be contracted by the elastic force of the elastic member 56, wherein the heating water is injected into the hot water pipe 12 again It will be restored to its initial state.

Therefore, the corrugated pipe 58 accommodates the pressure change of the hot water pipe 12 to prevent the rupture of the hot water pipe 12 and the breakage of the sealing device 20 to implement a structure 30 of the hot water pipe that can be used semi-permanently. In addition, the heating water can also be prevented from leaking to the outside.

"A" and "B" of Figure 7 is a schematic operation of the inspection means according to an embodiment of the present invention.

Looking first, "ga", the check means 70 of the present invention is the end of the hose 60 for inducing and discharging the air and heating water of the pressure receiving device 50 is inserted, and inserted into the hot water pipe 12 Installed in the sensing box 72 and the power line 15 to which the heating lines 14 and the joint lines 78a and 78b which are separated and extended from the connected power line 15 are installed and are short-circuited in the sensing box 72. If this occurs, it is configured to include a circuit breaker (74) for shutting off the power.

Here, referring to "I", as an example of a case where the corrugated pipe 58 accommodating the pressure of the hot water pipe 12 and the heating water is broken, the heating water will flow out of the corrugated pipe 58 and leaked. The heating water will flow into the sensing box 72 along the lower air outlet 54 of the case 52 and the hose 60 for inducing discharge thereof. In this case, a short circuit will be generated in the joint lines 78a and 78b connected to the power line 15, and the short circuit breaker 74 that detects the short circuit will short the power line 15.

In this way, the check means 70 is provided to promptly indicate whether the pressure receiving device 50 is damaged, which may be of great help in maintenance and may greatly increase safety.

The foregoing has outlined rather broadly the features and technical advantages of the subject innovation in order to better understand the utility model claims of the subject matter described below. Additional features and advantages constituting the utility model claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the presently disclosed subject matter can be used immediately as a basis for designing or modifying other structures for carrying out similar purposes as the present invention.

In addition, such a modification or altered equivalent structure by those skilled in the art as a basis for modifying or designing the structure and concept of the invention disclosed in the present invention to another structure for carrying out the same purpose of the present invention is practical. Various changes, substitutions, and alterations are possible without departing from the spirit or scope of the invention as described in the scope of the new patent.

As described above, the structure of the hot water pipe into which the heating wire of the present invention is inserted can be used semi-permanently by preventing the rupture of the sealing device and the hot water pipe itself by accommodating a change in the internal pressure of the hot water pipe.

In addition, a check means connected to each of the pressure receiving device and the power line is provided to detect leakage of the heating water and short-circuit the power supply, thereby greatly increasing safety, thereby achieving a more convenient maintenance.

Claims (4)

In the structure of the hot water pipe is inserted into the heating wire to heat the heating water, which is sealed with a sealing device to prevent the leakage of the heating water, A fastening part formed on one side of the sealing device or a hot water pipe; Connecting means coupled to the fastening part; And Fastened to the connecting means, the structure of the hot water pipe is inserted, characterized in that it comprises a pressure receiving device that is contracted / expanded in accordance with the internal pressure of the hot water pipe. The method of claim 1, The pressure receiving device A space is provided therein, one side of which is open to be fastened to the connecting means, and a screw part is formed, and the other side of the case includes an air outlet; An elastic member inserted into the case; A bellows-shaped corrugated tube inserted into the case and supported by the elastic member; And The structure of the hot water pipe is inserted into the heating wire, characterized in that it comprises a hose which is connected to the air outlet to induce and discharge the air or heating water to the outside. The method of claim 2, Hot water pipe is inserted into the heating element, characterized in that additionally provided with a check means for short-circuit the power by detecting the leakage of the heating water due to breakage of the corrugated pipe of the pressure receiving device. The method of claim 3, wherein The checking means A sensing box in which an end portion of the hose for inducing and discharging the air and the heating water of the pressure receiving device is inserted, and a heating wire inserted into the hot water pipe and a connected power line are connected; And Installed in the power line structure of the hot water pipe is inserted into the heating wire, characterized in that it comprises a circuit breaker for shutting off the power when the leakage occurs in the sensing box.

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