KR20170141864A - Dry Pendent Sprinkler Head - Google Patents

Abstract

The present invention relates to a free-curved type integrated flexible sprinkler head for freezing destruction prevention capable of maximizing work efficiency and space efficiency. The free-curved type integrated flexible sprinkler head for freezing destruction prevention has an improved structure in which extinguishing water is completely drained to prevent freezing destruction and has a freely curved integrated structure so that the entire route from a pendant head to a horizontal pipe is freely built rather than a route setting limited to any one point as one gentle route, and thus is widely installed due to ensured flexibility and is applied to ceiling height or other working conditions in a more appropriate form. The free-curved type integrated flexible sprinkler head for freezing destruction prevention comprises: a tubular assembly (10) installed above a horizontal pipe (2), branched from a main pipe (1), to be separated into several numbers; and a pendant head (20) exposed downward from the ceiling and causing dispersion of extinguishing water to correspond to a change in external condition, wherein the tubular assembly (10) and the pendant head (20) are integrated. The tubular assembly (10) is made of a flexible material to be bent in various directions.

Description

[0001] The present invention relates to an integral type flexible sprinkler head having a free curvature type for preventing frost,

The present invention relates to a sprinkler which is installed in a dry type, and more particularly to an improved structure in which water can be completely drained to prevent freezing of the water, Therefore, it is possible to freely construct the entire path from the pendant head to the horizontal piping in one gentle path instead of the path setting limited to any one place, so that it is possible to apply general form of installation due to flexibility, more suitable for ceiling height and other working conditions To a free flexure type integral flexible sprinkler head for prevention of freezing caused by maximization of work efficiency and space efficiency.

Generally, a sprinkler means that a metallic sprinkler head attached to an upper part of a building, that is, a ceiling or a wall, is melted by heat in the event of a fire so that the lid of the sprinkler can be dropped and water that has been pressurized can be scattered from the head to the entire firing point do.

Such a sprinkler is provided so that fire notification and extinguishing can be automatically performed at the initial stage of ignition, and water is sprayed in a spray form, which is effective for liquid fire. In addition, there are many underground buildings and combustible materials (burning materials) that are difficult to detect fire or digestion, and are suitable for fire extinguishing equipment in areas where people are often in need, and can be expected to be automatically extinguished at night.

Normally, sprinkler operates at 67 ~ 180 ℃, but it may be different depending on the type. The location, arrangement and discharge of water are specified by the Fire Service Act according to the type of building and materials used for interior decoration.

For example, when the sprinkler head is installed on the ceiling, it should be installed 10 ~ 20cm apart from the back of the ceiling, and the horizontal distance should be 2.1m or less (2.3m or less for the refractory structure). A similar fire extinguishing system is equipped with a head on the roof, on the eaves, on the edge of the window, etc., and there is a drencher which prevents the combustion of adjacent fire by water film in waterproofing.

On the other hand, when dry pendant sprinkler head is installed in a place where there is a risk of frost, the cost is relatively high, but damage is occurring because the structure can not completely prevent the frost after construction.

In this regard, as shown in FIG. 1, a top-down dry-pendent sprinkler head is disposed at a place where a frost is expected in the past, so as to exert its function in an emergency such as a fire. The horizontal piping and the horizontal piping are folded upward and bent downward again to be connected to the dry pendant sprinkler head.

However, such a configuration causes a fatal problem in which the water of the digester is not completely drained, causing another property damage due to frequent sprinkler head breakage caused by the frost wave. In other words, the connection of the sprinkler head and the branch pipe or the branch pipe bent downwardly connected with the sprinkler head does not completely exhaust the structurally digested water, which results in a problem that can not be freed from the freeze.

In addition, according to the height of the ceiling in the prior art, the length and the installation route of the branch pipes must be considered. Inevitably, when the working condition is different from the design, an extra work must be preceded, and the work environment is actively coped with There is a problem that can not be done.

Utility model registration No. 20-0408362 (registered date 2006.02.02) Patent Registration No. 10-0433316 (Registration date 2004.05.18)

The present invention has been made in order to more positively solve the above problems, and it is an object of the present invention to provide an integral sprinkler which can realize a complete curved structure by application of a subject pipe capable of free curving and a pendant head integrally formed with the pipe The problem to be solved is to provide a head.

In addition, another problem is to provide a complete drainage of the digested water while being capable of coping positively with the working environment or the installation environment, and providing the existing piping while keeping the existing piping intact.

In order to accomplish the above object, the present invention provides a free flexure type integrated flexible sprinkler head 100 for preventing freezing, as follows.

The sprinkler head 100 includes a tubular assembly 10, which is installed in a dry type for preventing freezing, and is installed at several places on the upper portion of the horizontal pipe 2 branched from the main pipe 1; And a pendant head 20 which is downwardly exposed from the ceiling and is caused to scatter the digested water due to changes in external conditions.

Wherein the upper tubular assembly 10 is formed of a flexible material to permit bending in a multidirectional manner.

The upper tubular assembly 10 also bends the entire path from the horizontal pipe 2 to the pendant head 20 in an arc shape to vary the degree of curvature without being adversely affected by the pendant head length and ceiling height, So that the stay of the number is not allowed.

On the other hand, the upper tubular assembly 10 is further provided on its outer surface with a stiffener so as to be protected from external factors, the upper stiffener being supported by the friction member 30 in the boundary region between the tubular assembly 10 and the pendant head 20 And the position to be adhered to.

At this time, the upper friction member 30 has a protruding projection 31 for restricting one end of the reinforcing member; And a pressing piece 32 formed in the direction of the pendant head 20 from the outer surface of the projection.

According to the present invention having the above configuration, since the tubular assembly having a shape capable of freely curving is adopted and the pendant head is integrally formed with the pendant head, the path from the horizontal pipe to the pendant head is realized as a complete curved structure, So that it is possible to contribute to prevention of freezing.

In addition, by integrating the tubular assembly and the pendant head, the curvature of the tubular assembly can be controlled to actively cope with the variations in the ceiling height and other working environments.

In other words, it is possible to cope more actively with the working environment and the installation environment, and it is possible to complete the discharge of the digested water, and since it can be installed while maintaining the existing pipe, it contributes greatly to simple construction and cost reduction.

1 is a conceptual view schematically showing a state in which a sprinkler is installed according to a conventional configuration;
2 is a perspective view of an integral type sprinkler constructed according to a preferred embodiment of the present invention;
3 is an explanatory view illustrating an installation state of the integral type sprinkler proposed in the present invention.
4 is a conceptual view schematically showing that a stiffener can be positionally restrained in a tubular assembly which is a substantial part of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. And throughout this specification, like reference numerals refer to like elements throughout.

The present invention is directed to a sprinkler that is installed in a dry type.

In particular, the present invention adopts an improved structure in which water can be completely drained to prevent freezing of wastewater, and furthermore, since it is provided with an integral structure capable of free curving, To be freely constructed in one gentle path.

Accordingly, it is possible to apply generalized installation due to securing flexibility and more suitable for ceiling height and other working conditions, so that the efficiency and space efficiency of the work can be maximized, and an integral type of free curved type Flexible sprinkler head < RTI ID = 0.0 > 100 < / RTI >

FIG. 2 is a perspective view of an integral type sprinkler according to a preferred embodiment of the present invention, and FIG. 3 is an explanatory view illustrating an installation state of the integral type sprinkler proposed in the present invention.

As shown in FIGS. 2 to 3, the sprinkler head 100 proposed in the present invention is a pendant type pendant, which is a concept of a tubular assembly as a substitute for a branch pipe, And the head can be integrated with the head so that the degree of curvature can be freely adjusted by the user's manipulation.

That is, a problem caused by the conventional branch piping 4 and structural problems caused by the connection between the branch piping and the pendant head 20 are overcome as an integrated product of the tubular assembly 10 and the pendant head , And such a tubular assembly should be allowed to have a degree of bending depending on the situation in the same manner as in the drawings.

In this regard, the sprinkler head 100 includes a tubular assembly 100, which is installed in a dry type for preventing freezing, and is divided into several sections at the upper portion of the horizontal piping 2 branched from the main piping 1, (10); And a pendant head 20 which is downwardly exposed from the ceiling and causes the scattering of the digested water due to an external condition change.

In particular, the tubular assembly 10 of the present invention is formed of a flexible material to permit bending in multiple directions, such as the application of a freely curved tubular assembly and the application of a pendant head One complete curve structure can be implemented.

Since the upper main pipe (1) and the horizontal main pipe (2) are already known technical maps, a detailed description will be omitted. Reference numeral 3 denotes a water hammer prevention device, which may leak water if water pressure is supplied to the sprinkler This is to protect the pipe from impact by absorbing strong pressure.

The upper tubular assembly 10 may be made of KS D 3628 [stainless steel corrugated tube] and the length should not be more than 3.2 m. In addition, such a tubular assembly must be subjected to solidification heat treatment after the corrugating process, and the reinforcing braid should be uniformly wrapped around the tubular assembly in a zigzag direction or with a wire weave like a stocking, It shall not cause deformation, malfunction, breakage, etc. to the pressure of the pressurized water supply system.

The appearance of the other tubular assembly 10 should be such that it meets or conforms to the following:

The components of the tubular assembly 10 should be free of harmful problems such as cracks and damage and should be free of any machined parts. When using a braid for reinforcement, the braid must be free from twisting, scratching, overlapping, The compression of the outer ring should be balanced with the inner ring.

The upper tubular assembly 10 satisfying the above-described conditions bends the entire path from the horizontal pipe 2 to the pendant head 20 to bend in an arc shape so that the curvature degree of the pendant head, So that the stay of the digested water is not permitted.

This can be more actively coped with the working environment and the installation environment, and provides a complete drainage of digested water as well as an advantage that it can be installed while maintaining the existing piping.

1 is a perspective view of a sprinkler according to a first embodiment of the present invention; FIG. 2 is a perspective view of a sprinkler according to a first embodiment of the present invention; FIG. Fig.

1, a top-down type dry pendant sprinkler head is installed in a place where a frost is expected in the past, thereby exhibiting a function in an emergency such as a fire. For this purpose, a horizontal pipe 2 connected to the main pipe 1, The branch pipe 4 is folded upward from the horizontal pipe and bent downward again to be connected to the dry pendant sprinkler head.

However, such a configuration causes a fatal problem in which the water is not completely drained from the fire water, causing another property damage due to frequent breakage of the sprinkler head due to the frost wave. In connection with the sprinkler head, And the discharge of the digestive water structurally at the portion of the branch pipe which is bent downwardly is not made completely, resulting in the end which can not be freed from the freeze.

In addition, the sprinkler of the conventional structure needs to consider the length and the installation path of the branch pipe according to the ceiling height, and in case that the working condition is different from the design, an error must precede a separate work, There is a problem that it can not actively cope.

As described above, the present invention proposes a tubular assembly 10 to eliminate such a problem, and the upper tubular assembly can be implemented in various forms as shown in FIG. 2. Therefore, And can be easily installed without a work process.

The criteria for performance certification and product inspection in connection with the upper tubular assembly 10 are as follows, and the tubular assembly of the present invention is confirmed to be satisfactory.

[Maximum operating pressure]

The maximum working pressure of the tubular assembly shall be not less than 1.4 MPa.

[Pressure test]

Tubular assemblies are to be free from breakage, leakage, etc. in a test in which the water pressure is 1.5 times the maximum working pressure for 5 minutes.

The internal pressure test of the tubular assembly is to be carried out freely in the longitudinal direction.

[Old strain]

The length of the tubular assembly is to be freely measured in the longitudinal direction. The length of the tube is to be 1.5 times the maximum working pressure for 1 minute, and the elongation after 5 minutes after the pressure has been removed shall not be more than 8.4 mm / m and not more than 31 mm.

[Vibration test]

The tubular assembly shall be free from leakage and nut loosening in the test of vibration of 6 mm with a forward width of 5 mm and a frequency of 25 times / second with a water pressure of 0.1 MPa applied.

[Bending Test]

When the bending test is repeated 15 times with a bending part having a radius of three times the nominal diameter with a water pressure of 0.02 MPa applied to the tubular assembly, there should be no abnormality such as leakage. In this case, the bending interval is 10 to 12 seconds.

If one end of the tubular assembly is fixed and a bending test is repeated five times at the minimum radius of curvature (maximum bending angle) of the application value with a water pressure of 0.1 MPa applied, there should be no abnormality such as leakage.

4 is a conceptual view schematically showing that a stiffener can be positionally restrained in a tubular assembly which is a main part of the present invention.

The upper tubular assembly 10 may further comprise a stiffener on the outer surface so as to be protected from external factors by the friction member 30 in the boundary region between the tubular assembly 10 and the pendant head 20 It is possible to make the corresponding position stable.

As described above, the upper stiffener (not shown) is fixed in a form to be wrapped around the outer surface of the tubular assembly to perform a predetermined function, and further includes a friction member 30 to protect the stiffener from unintentional displacement or unintentional removal do.

Such a friction member 30 needs to be accurately positioned in the boundary region between the tubular assembly 10 and the pendant head 20. For this purpose, there is a need to provide a structure for ensuring a certain level of frictional force or coherence while being in contact with the inner surface of the reinforcing member Take it.

Specifically, the upper friction member (30) has a protruding projection (31) for restricting one end of the reinforcing member; And a pressing piece 32 formed in the direction of the pendant head 20 from the outer surface of the projection.

At this time, the upper pressing piece 32 is provided in the shape of a petal, for example, and protrudes with a certain inclined surface with respect to the direction of the pendant head 20, in order to prevent the backward discharge and deviation of the reinforcing material in the projecting direction of the pressing piece .

According to the present invention constructed as above, the tubular assembly 10 having a shape capable of freely curving is adopted and integrated with the pendant head 20, so that the path from the horizontal pipe 2 to the pendant head is a perfect curved structure So that the stay of the digested water can not be allowed for the entire path, so that it is possible to contribute to the prevention of freezing.

In addition, by integrating the tubular assembly 10 and the pendant head 20, it is possible to actively cope with the parameters derived from the ceiling height and other working environments by adjusting the degree of curvature of the tubular assembly, do.

In other words, it is possible to cope more actively with the working environment and the installation environment, and it is possible to complete the discharge of the digested water, and since it can be installed while maintaining the existing pipe, it contributes greatly to simple construction and cost reduction.

1. Main piping
2. Horizontal piping
3. Water hammer prevention
4. Branch piping
10. Tubular assembly
20. Pendant Head
30. The friction member

Claims (4)

In a sprinkler which is installed as a dry type for preventing freezing,
A tubular assembly 10 divided into several sections at an upper portion of the horizontal piping 2 branched from the main piping 1; And a pendant head (20) which is downwardly exposed from the ceiling and causes the scattering of the digested water due to an external condition change,
Wherein the upper tubular assembly (10) is formed of a flexible material to permit bending in multiple directions.
The method according to claim 1,
The upper tubular assembly 10 bends the entire path from the horizontal pipe 2 to the pendant head 20 in an arc shape to vary the degree of curvature without being adhered to the pendant head length and ceiling height, Free flexural type flexible sprinkler head for prevention of freezing, which prevents the stay from being permitted.
3. The method according to claim 1 or 2,
The upper tubular assembly 10 further includes a stiffener on its outer surface so as to be protected from external factors,
Wherein the upper stiffener comprises a fixed position by a friction member (30) in a boundary area between the tubular assembly (10) and the pendant head (20).
The method of claim 3,
The upper friction member (30) has a protruding projection (31) for restricting one end of the reinforcing member; And a pushing piece (32) formed in the direction of the pendant head (20) on the outer surface of the projecting portion. The flexible sprinkler head as claimed in claim 1,

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