KR200440185Y1 - Apparatus for exausting pressure - Google Patents

Abstract

The present invention relates to an instantaneous pressure reducing device, and to an instantaneous pressure reducing device that is easy to fasten to the main body and excellent in sensitivity.

Instantaneous pressure reduction device of the present invention, the housing having a circular shape having a pressure outlet formed in the center; A first coupling part formed at one end of the housing; A second coupling part coupled to the first coupling part in a locking manner to couple the housing to the main body; A safety film of a soft material disposed in the pressure outlet and blocking the pressure outlet; A destruction hole of a hard material disposed adjacent to the safety film and having a fracture surface protruding in the safety film direction; And an outlet cover for opening and closing the pressure outlet opposite to the first coupling part.

Description

Instantaneous pressure reducing device {APPARATUS FOR EXAUSTING PRESSURE}

1 is an exploded perspective view showing the structure of an instantaneous pressure reducing device according to an embodiment of the present invention.

2 is a perspective view illustrating a structure of a second coupling unit according to an embodiment of the present invention.

3 is a cross-sectional view showing a state in which the instantaneous pressure reducing device according to an embodiment of the present invention is coupled to the main body.

4 is a perspective view showing the structure of the first and second breakout holes according to an embodiment of the present invention.

5 is a plan view showing the structure of the first and second breakout holes according to an embodiment of the present invention.

6 is a plan view illustrating a structure of a second breakout hole according to an embodiment of the present invention.

7 is a perspective view showing the structure of an instantaneous pressure reducing device according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

1: instantaneous pressure reduction device according to an embodiment of the present invention

10 housing 12 pressure outlet

14: engaging jaw 20: first coupling part

22: protrusion 24: locking portion

30: second coupling portion 32: locking portion passage groove

34: slope 36: stopper

40: safety shield 50: destruction

52: first destroyer 54: second destroyer

60 outlet cover 70 sealing means

80: coupling

The present invention relates to an instantaneous pressure reducing device, and to an instantaneous pressure reducing device that is easy to fasten to the main body and excellent in sensitivity.

In general, transformers convert the high voltage transmitted from a power plant into an appropriate voltage for use by consumers. These transformers are inflow and dry depending on the type of insulator. Usually, inflow transformers filled with insulating oil are used.

The structure of the inflow transformer is composed of a high voltage winding, a low voltage winding, an iron core, an insulating oil, an enclosure, etc., and a high voltage is applied to the primary high voltage winding, so that the primary low pressure winding is applied to the secondary low voltage winding by electromagnetic induction through the iron core. The voltage due to the turn ratio is generated.

Such an inlet transformer is installed on a pole and may explode due to an unexpected accident. In particular, an abnormal voltage may invade the primary side of the transformer due to a lightning strike or an open / close surge, or the transformer may explode due to a rapid internal pressure increase due to breakdown of the insulation of the transformer due to an overload and a short circuit at the secondary side. When the transformer explodes in this way, a fire occurs, and high-temperature insulating oil and gas are scattered, causing a risk of loss of life and property.

Therefore, the transformer is provided with an instantaneous pressure reducing device capable of properly discharging the instantaneously elevated pressure to the outside. By the way, the conventional instantaneous pressure reducing device is installed in the transformer by the bolt coupling, the installation process is difficult, there is a problem that the pressure is not properly discharged.

The technical problem to be achieved by the present invention is to provide an instantaneous pressure reducing device that is easy to install and that can effectively discharge the rising pressure inside the body.

The instantaneous pressure reduction device of the present invention for achieving the above technical problem, the housing having a circular shape having a pressure outlet formed in the center; A first coupling part formed at one end of the housing; A second coupling part coupled to the first coupling part in a locking manner to couple the housing to the main body; A safety film of a soft material disposed in the pressure outlet and blocking the pressure outlet; A destruction hole of a hard material disposed adjacent to the safety film and having a fracture surface protruding in the safety film direction; And an outlet cover for opening and closing the pressure outlet opposite to the first coupling part.

Here, the first coupling portion, facing each other, a plurality of protrusions extending in the body direction; And a plurality of locking portions formed by being bent outwardly from the protrusions, and the second coupling portion includes: a plurality of locking portion passing grooves through which the locking portions pass; It is preferable that the inclined surface formed to be inclined from the engaging portion passing groove to the neighboring engaging portion passing groove, it is preferable to fasten the instantaneous pressure reducing device to the main body in one rotation operation.

In addition, the safety layer has a curved surface that is convexly formed in the main body direction, it is preferable to be easily deformed according to the pressure change inside the main body.

In addition, the breakout, the first breakout having a lower insertion groove; It is preferable to have an upper insertion groove, the second breakout port is fastened to the first breakout port;

Here, it is preferable that the second breakout hole further includes an auxiliary insertion groove formed to be spaced apart from the lower portion of the upper insertion groove, so that it can form a sharp attachment of the breakout hole.

And it is preferable that the wedge which narrows the space | interval of the said upper insertion groove is inserted in the said auxiliary insertion groove, since it can maintain the sharp attachment of a destruction opening as it is.

The wedge is fixed to the second breaker by argon welding in the state inserted into the auxiliary insertion groove.

In addition, the housing further includes a locking jaw that the edge of the safety film is caught, and the first and second breakouts further include first and second locking surface parts that are respectively caught on the locking jaw, so that the safety film is easily destroyed and removed. Therefore, it is preferable.

The outlet cover may include a cover plate covering the pressure outlet port; A hinge coupling part formed at one side of the cover plate and hinged to the housing; It is preferable that the outlet cover is provided in the hinge coupling portion, the elastic opening to elastically open the cover plate, the outlet cover is not completely spaced in the instantaneous pressure reducing device, it can repeatedly cover the pressure outlet.

The elastic opening is characterized in that the spring.

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

1 is an exploded perspective view showing the structure of an instantaneous pressure reducing device according to an embodiment of the present invention.

As shown in FIG. 1, the instantaneous pressure reducing device 1 according to the present embodiment includes a housing 10, a first coupling part 20, a second coupling part 30, and a safety layer 40. It comprises a sphere 50 and the outlet cover 60.

First, the housing 10 forms the overall shape of the instantaneous pressure reducing device 1 according to the present embodiment, and provides a space for mounting other components. The housing 10 may be formed in a cylindrical shape as shown in FIG. 1. That is, it has a pressure outlet 12 formed in the center. The pressure in the main body is discharged through the pressure discharge port 12. As shown in FIG. 3, a locking jaw 14 for mounting the safety layer 40 and the breakout port 50 is formed on the inner surface of the housing 10.

The first and second coupling parts 20 and 30 are components for coupling the instantaneous pressure reducing device 1 to the main body. In the present embodiment, the first coupling portion 20 is coupled to the second coupling portion 30 in a locking manner in a state where the first coupling portion 20 passes through the mounting hole 210 formed in the main body 200, thereby connecting the instantaneous pressure reducing device 1 to the main body. To 200. Here, the locking method means that a part of the first coupling part 20 is caught by the second coupling part 30 in a state in which the first coupling part 20 is fitted in the second coupling part 30 by a force fitting method, so that the first coupling part is engaged with the first coupling part 20. The part 20 and the second coupling part 30 are coupled to each other.

To this end, the first coupling portion 20 has a protrusion 22 and a locking portion 24, as shown in FIG. Protruding portion 22 refers to a portion extending from the lower end of the housing 10 toward the main body 200. In this embodiment, a plurality of protrusions 22 are provided. And the locking portion 24, as shown in Figure 1, refers to a portion formed by bending in the outward direction from the protrusion (22). The locking portion 24 is hooked to the second coupling portion 30 and the first coupling portion 20 and the second coupling portion 30 are fastened. At this time, the locking portion 24 preferably has a structure in which the lower surface is inclined. When the lower surface has an inclined structure, the second coupling part easily slides while the locking part 24 is caught by the second coupling part 30 in the process of fitting the first coupling part 20 to the second coupling part 30. It can be inserted into the portion 30.

As shown in FIGS. 1 and 2, the second coupling part 30 has a locking part passage groove 32 and an inclined surface 34. First, the locking portion passage groove 32 is formed on the inner side of the second coupling portion 30, and provides a path through which the locking portion 24 can pass. That is, the locking portion 24 protrudes outward from another portion of the first coupling portion 20 to be easily recessed outward from other portions of the inner side of the second coupling portion 30 so as to easily pass.

As shown in FIG. 2, the inclined surface 34 is formed to be inclined from the catch passage passing groove 32 to another neighbor catch passage passing groove. In particular, it has an inclination starting from the locking portion passing groove 32 toward the other locking portion passing groove. Then, the locking portion 24 fitted into the second coupling portion 30 along the locking portion passage groove 32 is caught on the inclined surface at the start point of the inclined surface 34. Then, when the first coupling portion 20 or the second coupling portion 30 is rotated, the locking portion 24 moves along the inclined surface so that the first coupling portion 20 and the second coupling portion 30 are firmly secured. Combined. A stopper 36 is formed at the end of the inclined surface 34 as shown in FIG. 2. The stopper 36 serves to prevent the locking portion 24 moving along the inclined surface 34 from moving further.

And the second coupling portion 30 according to the present embodiment has a larger diameter than the mounting hole 210 formed in the main body 200, the first coupling portion 20 has a diameter smaller than the mounting hole 210 It is sized to pass through it.

Meanwhile, the first coupling portion and the second coupling portion may be configured in a screw coupling structure. In particular, it is preferable to use a two-line screw structure because the joining operation can be performed quickly. In the case where the first and second coupling portions have a screwing structure, two rows of screw surfaces are formed on the outer surface of the first coupling portion, and two rows of screw surfaces are formed on the inner surface of the second coupling portion. Then, the first engaging portion is rotated so that the inner surface of the second engaging portion and the outer surface of the first engaging portion are engaged.

Next, the safety membrane 40 is mounted on the inner surface of the housing 10 to block the pressure outlet 12. As shown in FIG. 3, the safety membrane 40 completely blocks the pressure outlet 12 in a state where it is mounted on the housing 10. The safety membrane 40 has a hardness that is not deformed when the pressure in the main body 200 is less than or equal to a predetermined size, and should be immediately deformed when a pressure greater than or equal to a predetermined size is applied. In addition, in this embodiment, in order to facilitate the deformation of the safety film, as shown in FIGS. 1 and 3, the safety film 40 has a curved surface that is convexly formed in the main body 200 direction. Thus, the safety film 40 having a curved surface has an advantage in that the pressure increases in the main body 200, the convex direction is opposite to the main body, and the sensitivity is easily contacted with the breaker 50. In the present embodiment, the safety film 40 is formed of a nonferrous metal such as aluminum or copper having a weak hardness.

Next, as shown in FIG. 3, the breakout port 50 is disposed adjacent to the safety film 40 to destroy the safety film 40 when the safety film 40 is deformed. To this end, the destruction tool 50 according to the present embodiment has destruction surfaces 52c and 54e protruding in the direction of the safety film 40. These fracture surfaces 52c and 54e have sharp blades in the direction of the safety film 40.

In this embodiment, the breaker 50 is composed of a first breaker 52 and a second breaker 54 for ease of manufacture. That is, the first breakout hole 52 and the second breakout hole 54 are manufactured and configured to be coupled to each other. Therefore, as shown in FIG. 4, the first breakout hole 52 has a lower insertion groove 52a formed in the center portion thereof. The lower insertion groove 52a is formed at a constant depth for coupling with the second breakout hole 54.

And the second breakout hole 54 has an upper insertion groove (54a) coupled with the lower insertion groove (52a) of the first breakout hole 52, as shown in FIG. At this time, the upper insertion groove (54a) portion of the second destruction port 54 should be formed as small as possible for easy destruction of the safety film (40). On the other hand, for easy fastening with the first breakout port 52, it is advantageously formed large. Therefore, in the present embodiment, the upper insertion groove 54a is sufficiently large, and the second destruction structure is configured to make the upper insertion groove 54a small while the first and second destruction holes 52 and 54 are fastened to each other. The sphere 54 is constituted.

To this end, as illustrated in FIG. 6, the second breakout hole 54 is spaced apart from the lower portion of the upper insertion groove 54a to form an auxiliary insertion groove 54b. By forming the auxiliary insertion groove 54b, the second breaker 54 has a structure capable of varying the size of the upper insertion groove 54a. That is, as shown in FIG. 6, when the auxiliary insertion groove 54b is enlarged, the size of the upper insertion groove 54a is reduced, and when the size of the upper insertion groove 54a is increased, the auxiliary insertion groove 54b is formed. The size becomes smaller.

Therefore, in the process of fastening the first breaker 52 and the second breaker 54, the size of the upper insertion groove 54a is increased to facilitate the fastening operation. After the fastening operation is completed, the size of the upper insertion groove 54a is reduced by increasing the size of the auxiliary insertion groove 54b. When the size of the upper insertion groove 54a is reduced in this way, the attachment formed by the first and second breakout holes 52 and 54 has a perfect shape.

In particular, as shown in FIG. 6 in the auxiliary insertion groove 54b, the wedge 54c may be inserted to keep the size of the upper insertion groove 54a minimized. The wedge 54c may also be fixed to the second breakout hole 54 by a welding method or the like. As the welding method, argon welding is preferable.

4 and 5, first and second locking surface parts 52b and 54d are formed on the locking jaws 14 of the housing 10, respectively, as shown in FIGS. 4 and 5. . The engaging surface portions 52b and 54d are formed perpendicular to the fracture surfaces 52c and 54e and have a planar structure having a constant area. In the state in which the first and second breakout holes 52 and 54 are coupled, the first and second catching surface parts 52b and 54d are formed such that the first and second catching surface parts 52b and 54d form a circle. ) Has an arc shape of constant length.

Next, the outlet cover 60 is a component that opens and closes the pressure outlet opposite to the first coupling part 20. Thus, the outlet cover 60 is mounted at the outlet opposite the first engaging portion 20 of the housing 10, as shown in FIGS. 1 and 7. In order to easily open and close the pressure outlet 12, this outlet cover 60 is configured to include a cover plate 62, a hinge coupler 64, and an elastic opening 66.

First, the cover plate 62 is made of a disk having a size that can completely block the pressure outlet (12). One end of the cover plate 62 is provided with a projection, and the hinge coupling portion 64 is formed in the projection. As illustrated in FIGS. 1 and 7, the hinge coupler 64 is formed at one side of the cover plate 62 and is hinged to the housing 10. The cover plate 62 is opened and closed by rotating based on the hinge coupler 64.

In this embodiment, the cover plate 62 is further provided with an elastic opening 66 so as to automatically open and close. The elastic opening portion 66 is provided in the hinge coupling portion 64 and elastically opens the cover plate 62. Therefore, the cover plate 62 has a structure that opens when a force exceeding the elastic force of the elastic opening 66 is applied, and closes again when the force is removed. In this embodiment, this elastic opening 66 is constituted by a spring, as shown in FIG.

And it is preferable that the sealing means 70 is further provided between the locking step 14 and the safety film 40. As shown in FIG. 3, the sealing means 70 prevents the pressure inside the main body from leaking through the pressure outlet 12 while the instantaneous pressure reducing device 1 is coupled to the main body 200.

As shown in FIG. 3, a sealing means 70 is further provided at a portion of the outer circumferential surface of the housing 10 that contacts the main body 200. The sealing means 70 prevents pressure leakage between the main body 200 and the forward shell pressure reducing device 1.

In addition, a coupling 80 is further provided to fix the first and second locking surface portions 52b and 54d to the locking jaw 14 in order to secure stable positions of the first and second breakout ports 52 and 54. It is preferable. The spacing between the breaker 50 and the safety film 40 is determined by the length of the coupling 80.

Finally, the fixing ring 90 is fitted to the inner surface of the housing in an interference fit manner. The fastening ring fitted in such a way to ensure that the components such as the safety screen and the destruction port is stably fixed to the housing. And in order to ensure a more secure fixing it is preferable to punch one side of the housing in the state in which the fixing ring 90 is fitted in the housing so that the fixing ring is not separated from the housing.

According to the present invention, since the momentary pressure reducing device is fastened to the main body by using the first and second coupling parts having the inclined surface structure instead of the screw structure, the mounting time is reduced.

In addition, there is an advantage that the destruction sphere has a perfect attachment structure, but easily destroys the safety film. In addition, there is an advantage that the pressure relief is easy to remove unnecessary parts in the destruction port so that the destroyed safety film can be easily flipped past the destruction hole.

In addition, according to the present invention there is an advantage that the outlet cover is automatically opened and closed by the elastic opening, and does not leave the momentary pressure reducing device.

Claims (16)

A circular shaped housing having a pressure outlet formed in the center; A first coupling part formed at one end of the housing; A second coupling part coupled to the first coupling part in a locking manner to couple the housing to the main body; A safety film of a soft material disposed in the pressure outlet and blocking the pressure outlet; A destruction hole of a hard material disposed adjacent to the safety film and having a fracture surface protruding in the safety film direction; Instantaneous pressure reduction device comprising a; outlet cover for opening and closing the pressure outlet opposite the first coupling portion. The method of claim 1, The first coupling portion, A plurality of protrusions facing each other and extending toward the main body; Includes; a plurality of engaging portion is formed to be bent in the outward direction from the protrusion, The second coupling portion, A plurality of locking portion passage grooves through which the locking portion passes; And an inclined surface formed to be inclined from the engaging portion passing groove to the neighboring engaging portion passing groove. The method of claim 1, The safety membrane is a momentary pressure reduction device characterized in that it has a curved surface formed convexly toward the main body. The method of claim 1, The destruction sphere, A first breaker having a lower insertion groove; And a second breakout port having an upper insertion groove and fastened to the first breakout hole. The method of claim 4, wherein The second breakdown port, the instantaneous pressure reducing device further comprises an auxiliary insertion groove formed to be spaced apart below the upper insertion groove. The method of claim 5, Instantaneous pressure reduction device, characterized in that the auxiliary insertion groove is inserted into the wedge narrowing the interval of the upper insertion groove. The method of claim 6, The wedge is instantaneous pressure reduction device, characterized in that fixed to the second breakthrough by argon welding in the state inserted into the auxiliary insertion groove. The method of claim 4, wherein The housing further includes a locking step that the edge of the safety film is caught, The first and second breakout port is a momentary pressure reduction device, characterized in that it further comprises a first, the second engaging surface portion to be caught on the locking step. delete The method of claim 1, The outlet cover, A cover plate covering the pressure outlet port; A hinge coupling part formed at one side of the cover plate and hinged to the housing; And a resilient opening part provided in the hinge coupling part and resiliently opening the cover plate. delete The method of claim 10, The momentary pressure reducing device, characterized in that the elastic opening is a spring. The method of claim 8, Instantaneous pressure reduction device, characterized in that the sealing means is further provided between the locking step and the safety film. The method of claim 8, Instantaneous pressure reduction device, characterized in that the sealing means is further provided in the portion of the outer peripheral surface of the housing in contact with the main body. The method of claim 8, And a coupling for further fixing the first and second locking surface portions to the locking jaw. The method of claim 1, Is inserted into the outermost of the pressure outlet, and further comprising a fixing ring for fixing the safety screen and the destruction port to the housing, The fixing ring is inserted into the housing by a force-fit method, the momentary pressure reduction device characterized in that the fixing ring fixed to the housing by deforming a portion of the housing in the state that the fixing ring is inserted into the housing.

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