KR102143236B1 - Stand-alone temperature response automatic fire alarm device - Google Patents

Abstract

The present invention discloses a self-contained temperature response automatic fire alarm. The independent temperature response automatic fire alarm according to the disclosed invention is a starting to transmit an alarm sound output signal to a lower case and an upper cover coupled to form a housing, an alarm sound generator provided in the lower case, and an alarm sound generator The switch and the start switch operation lever are installed so as to be elastically biased downward on the upper cover to operate the start switch to operate the start switch by the rotation of the free end, and the static suppressed by pressing the free end of the start switch operation lever upward. It includes a heat-sensitive member that is set in a state detachably exposed to the lower case to support it in a constrained state, and when a fire occurs, the heat-sensitive member reacts at a certain ambient temperature and is damaged or deformed. Is released and descends by a downward elastic biasing force, and operating a start switch so that the alarm sound generator outputs an alarm sound. According to this configuration, the possibility of malfunction can be effectively lowered compared to existing sensors and digital operating mechanisms, so operation precision and reliability can be improved, and fire detection as a self-contained or independent product is possible because it is possible to exclude a separate wiring work dedicated to applying power. Monitoring is possible, increasing the degree of freedom of facilities for various places and locations, thereby securing the capability to significantly expand the range of fire detection and alarm areas.

Description

Stand-alone temperature response automatic fire alarm device

The present invention relates to a fire alarm, and more particularly, to a stand-alone temperature-responsive automatic fire alarm that is operated to automatically output a fire alarm sound in response to a change in ambient temperature when a fire occurs.

In recent years, due to the intensification of population density due to rapid industrialization and urbanization, buildings are gradually becoming large, high-rise, and complex, so that the use of various combustible interior materials and an increase in energy use such as electricity, gas, oil, etc. Fires are frequent due to the increase of the company and careless management. In particular, it is a reality that a lot of time and effort are spent in extinguishing fires as they develop into large-scale fires due to inadequate initial response in case of fire.

In fact, according to the survey results of Korea's Fire and Disaster Prevention Administration, it is known that the damage to life and property increases every year, and the risk of fire in the building space in the future due to the complexization and diversification of buildings due to land use restrictions It has been known to be increasing gradually.

As is well known, it is widely known that the success or failure of fire suppression and firefighting activities in the event of a fire depends on the initial response state, and the spread of various types of automatic fire detection and alarm devices is expanding for efficient initial response in case of fire.

However, the conventional fire alarm detects heat, smoke, or flame when a fire occurs, and the fire alarm operates.As a separate wiring work for power supply is required to install in a building, the degree of freedom of construction and facilities It has a deteriorating problem.

In addition, the conventional fire alarm has a problem that the sensor member for detecting heat, smoke, and flame is frequently malfunctioning due to functional limitations due to environmental influences and system errors by digital method, and power is turned off when a fire occurs. As a result, there is a disadvantage that there is a concern that it may become inoperative at all times.

Meanwhile, in order to improve the problems and shortcomings of the conventional fire alarm as described above, Korean Patent Publication No. 10-1738235 discloses a powerless wireless fire alarm device with a built-in generator operated by a spring and a camera for shooting a fire scene. Is proposed, but in the case of such a non-powered wireless fire alarm device, a separate wiring work for power application can be eliminated, so that the degree of freedom of the facility can be increased, while a spring, a generator, and a camera are provided as internal parts. There is a disadvantage of lowering economic efficiency due to an increase in manufacturing cost, and there is still a problem in that malfunctions due to functional limitations of the camera due to environmental influences and system errors due to digital methods exist.

In addition, Korean Utility Model Publication No. 20-0450193 proposes a standalone fire alarm equipped with smoke detection sensors such as photoelectric sensors, and Korean Utility Model Publication No. 20-0208360 uses batteries without wired lines such as electric wires. Portable fire alarms that operate through power, heat, flame, smoke, and harmful gas detection sensors have been proposed, but malfunctions due to functional limitations due to environmental effects of various sensors and system errors due to digital methods exist. have.

The present invention is derived from the technical background as described above, and the problems of the above-described background technology are the contents that the applicant possessed for derivation of the present invention or learned in the derivation process of the present invention, and must be applied for the present invention. It cannot be said that it was previously known to the general public.

Korean Patent Publication No. 10-1738235 Korean Patent Publication No. 10-1578895 Korean Patent Publication No. 10-1547644 Republic of Korea Utility Model Publication No. 20-0450193 Republic of Korea Utility Model Publication No. 20-0208360

The present invention was created to improve this in consideration of the disadvantages and problems of the conventional fire alarm under the technical background as described above, and the first object of the present invention is a heat-sensitive member according to a change in ambient temperature at the beginning of the fire occurrence. It is to provide a temperature-responsive fire alarm that can increase the operating precision and reliability of the product by effectively blocking the possibility of malfunction by triggering an electrical signal by a mechanical operating mechanism linked to the deformation or damage of the product.

And a second object of the present invention is to provide an independent fire alarm that can increase facility freedom and economical efficiency as a wired/wireless independent type of low power consumption by excluding separate wiring work for applying power and excluding existing electric and electronic sensors. will be.

In order to achieve the above objects, the independent temperature response automatic fire alarm according to the present invention includes a lower case and an upper cover complementarily coupled to form a housing with a storage space, and an alarm sound generator provided in the lower case. And, a start switch for transmitting an alarm sound output signal to the alarm sound generator, and a start switch installed so as to be elastically biased downward to the upper cover to operate the start switch to operate the start switch by rotation of the free end. And a heat-sensitive member set in a state detachably exposed to the lower case so as to support the oppressed static restraint state by pressing the free end of the actuating switch operating lever upward, and the heat-sensitive member When a fire occurs, the free end of the start switch operation lever is released as it is damaged or deformed by reacting at a certain ambient temperature, and the start switch is operated while lowering by a downward elastic bias force, and the alarm sound generator outputs an alarm sound. It characterized in that it is made to be.

In the independent temperature response automatic fire alarm according to the present invention having the configuration as described above, the start switch operation lever has a fixed end hinged to a support rib provided on the upper cover, and the free end is downwardly elastically biased. Is installed in a rotatable state, and the heat-sensitive member is set in a state detachably exposed to the lower case so as to support it in a statically restrained state suppressed by pressing the free end of the activation switch operating lever upward. . According to this configuration, the heat-sensitive member is damaged or deformed by reacting at a constant ambient temperature in case of fire, and accordingly, the locking state of the free end of the start switch operation lever is released and rotates directly downward by a downward elastic bias force. It is preferable that the alarm sound generator outputs an alarm sound by operating the start switch while descending.

According to another aspect of the present invention, a test switch operation lever formed in a rib shape capable of vertically elastic flow by cutting a portion of the plate-shaped body of the upper cover, and a test switch capable of contacting the test switch operation lever It further includes a switch for an alarm sound output test made, and is configured to check and check whether an alarm sound is output without accompanying damage or deformation of the heat-sensitive member by operation of the alarm sound output test switch. You can have it.

According to another aspect of the present invention, a mesh fence surrounding and protecting the heat-sensitive member may be provided and a protective cover detachably installed on the lower case and the upper cover may be provided. have. According to this configuration, when the heat-sensitive member (glass bulb) is damaged or deformed, the mesh fence restrains the fragments and can be accommodated in the protective cover. . Accordingly, by preventing the fragments of the heat-sensitive member (glass bulb) from scattering to the periphery, damage to the surrounding main parts can be suppressed, thereby facilitating economical repair and repair. In such a configuration, it is preferable that the mesh fence employs various metal nets having excellent thermal conductivity so as to increase sensitivity and precision to the temperature reaction of the heat-sensitive member.

According to the independent temperature response automatic fire alarm according to the present invention, the following effects can be obtained.

First, the possibility of malfunction can be effectively lowered compared to conventional sensors and digital operating mechanisms by triggering an electrical signal by a mechanical operating mechanism linked to the deformation or damage of the thermal member according to the ambient temperature change at the beginning of the fire. It can increase reliability.

Second, since it is possible to exclude a separate wiring work for exclusive use of power, it can be applied as a self-contained or independent product to perform fire detection monitoring, thereby increasing the degree of freedom of facilities for various places and locations, greatly expanding the scope of fire detection and alarm areas. You can get scalable performance.

Third, by excluding the existing electric and electronic sensors and replacing it with a temperature-responsive heat-sensitive member capable of mechanical operation, it is possible to increase the degree of freedom and economic efficiency of the facility as a wired/wireless standalone type with low power consumption.

Fourth, the reliability of the product can be greatly improved because it is possible to identify and confirm malfunctions in advance through periodic and regular inspection.

Figure 1 is a schematic external perspective view showing a stand-alone temperature reaction automatic fire alarm according to the present invention.
Figure 2 is an exploded perspective view schematically showing a separate independent temperature reaction automatic fire alarm according to the present invention.
3 is a partially exploded perspective view schematically showing the upper cover of the independent temperature-responsive automatic fire alarm according to the present invention.
Figure 4 is a circuit diagram showing the alarm sound generator of the independent temperature response automatic fire alarm according to the present invention.
5 is a schematic configuration diagram schematically showing the operation process of the independent temperature response automatic fire alarm according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the independent temperature response automatic fire alarm according to the present invention. The following description and the accompanying drawings are only preferred embodiments of the present invention, and do not limit the independent temperature reaction automatic fire alarm according to the present invention described in the claims.

1 is a schematic external perspective view showing an independent temperature response automatic fire alarm according to the present invention. And FIG. 2 is an exploded perspective view schematically showing the independent temperature-responsive automatic fire alarm according to the present invention, and FIG. 3 is a schematic diagram showing the upper cover of the independent temperature-responsive automatic fire alarm according to the present invention. Partial exploded perspective view.

1 and 2, the independent temperature response automatic fire alarm 100 according to the present invention includes a lower case 110 and an upper cover 120 constituting a housing, and a storage space formed by a complementary combination thereof. Each assembled in a built-in state and being modularized, an alarm sound generator 140 that outputs an alarm sound when a fire occurs, a start switch (S1) for transmitting an alarm sound output signal, a start switch operation lever 121 and thermal sensitivity It is configured to include the member 130.

The lower case 110 and the upper cover 120 are preferably made of a molded body having a side wall around a triangular plate-shaped body so that the bottom side is rounded and the vertex is cut open to have an open opening, and the lower case 110 Is formed such that a sidewall of the vertex is cut to protrude a part of the plate-shaped body, and the upper case 120 is formed such that a side of the vertex is partially cut off. Accordingly, in a state in which the upper cover 120 is coupled to the lower case 110, a housing in which a portion of the plate-shaped body at the vertex of the lower case 110 is exposed is formed.

The lower case 110 has a grille 112 in the form of a through hole for effectively outputting the alarm sound output from the alarm sound generator 140 on the plate body, and the sidewall of the rounded bottom is opened to generate an alarm sound. A battery cover 141 configured to accommodate a battery 141 functioning as a power supply unit of the unit 140 is installed in a detachable state.

The upper cover 120 is provided with a pair of support ribs 123 protruding vertically downward on the inside of the plate body at regular intervals, and the start switch operation lever 121 is provided on the pair of support ribs 123 It is installed in a rotatable state.

The starting switch operating lever 121 has a fixed end coupled to the support rib 123 provided on the upper cover 120 in a hinge structure (h), and at the same time, the free end is inside the plate body of the upper cover 120 It is installed in a state of being exposed through an opening cut in the vertex of the upper cover 120 so that it is elastically biased downward by the elastic force of the spring 122 provided to be supported and downward movement is possible by rotation.

In addition, the start switch operation lever 121 is provided with a support groove (121a) formed so that the upper end of the heat-sensitive member 130 is seated and supported on the bottom of the free end of the front end.

The heat-sensitive member 130 includes, for example, a plate-shaped body in which a glass bulb sealed with a thermal expansion liquid such as a glycerin or an ether mixture is exposed to the vertex of the lower case 110 and the start switch operation lever 121 ) Can be set so as to be supported in an upright state between the free ends and exposed detachably, at this time, the upper end of the heat-sensitive member (glass bulb) 130 is provided on the bottom of the free end of the start switch operation lever 121 At the same time as being inserted into the supported groove (121a), the lower end is upright so as to be seated in the concave groove (not shown) provided in the plate-shaped body exposed to the vertex of the lower case 110 of the lower case 110 It is set to

Accordingly, the heat-sensitive member (glass bulb) 130 pressurizes the free end of the activation switch operation lever 121 upward to support it in a suppressed static restraint state. According to this configuration, when a fire occurs, the heat-sensitive member (glass bulb) 130 is damaged or deformed in response to a constant ambient temperature. Accordingly, the free end of the start switch operation lever 121 is released from the statically restrained state, and rotates and descends by a downward elastic bias force by the spring 122 to operate the start switch S1. Thereby, the start switch (S1) is configured to operate to transmit a signal to the alarm sound generator 140 to output an alarm sound notifying the occurrence of fire.

On the other hand, according to another aspect of the present invention, the heat-sensitive member 130 has a conventional fusible link of a known public that is damaged or deformed by itself when the ambient temperature reaches a certain temperature, such as a lead rod. Can be employed. Accordingly, the heat-sensitive member 130 may select and employ various models in which, for example, the composition of the thermal expansion liquid sealed in a glass bulb or the composition of the lead rod is different. As a result, the reaction temperature for the surroundings can be designed and set in the upper, middle, and lower areas such as around 68°C, around 93°C, and around 141°C. It is possible to provide a fire alarm that can operate precisely in response to the characteristics.

The alarm sound generator 140 is provided as a circuit board as shown in Figs. 2 and 3 and is installed to be mounted on the lower case 110, and Fig. 4 is a view of the independent temperature response automatic fire alarm according to the present invention. This is a circuit diagram showing the alarm sound generator.

Referring to FIG. 4, the alarm sound generator 140 includes a battery 141 provided as a power supply for power supply, a speaker unit S3 configured to output an input alarm sound, and the start switch S1. It includes a circuit configuration that is electrically connected.

According to an aspect of the present invention, the starting switch S1 is preferably installed in a state in which a contact type switch is mounted on a circuit board. Accordingly, the independent temperature response automatic fire alarm 100 according to the present invention maintains a state where the free end of the start switch operation lever 121 and the contact switch are spaced apart as schematically shown in FIG. 5A in a normal setting state. Installed.

Therefore, according to the independent temperature response automatic fire alarm 100 according to the present invention having the configuration as described above, when a fire occurs, the ambient temperature is increased by the heat of ignition, as shown schematically in FIG. The heat-sensitive member (glass bulb) 130 is damaged or deformed in response and separated. Accordingly, the free end of the start switch operation lever 121 is released from the statically restrained state and descends while rotating by the downward elastic bias force by the spring 122 to operate the start switch S1 by pressing. . Accordingly, the start switch S1 transmits a start signal, and the alarm sound generator 140 operates to output an alarm sound notifying the occurrence of fire through the speaker unit S3.

On the other hand, according to the independent temperature response automatic fire alarm 100 according to the present invention having the configuration as described above, it may have a configuration configured to further include an alarm sound output test switch. Such an alarm sound output test switch includes a test switch operating lever 120S formed in a rib shape in which a part of the plate body of the upper cover 120 is cut to allow up and down elastic flow, and the test switch operating lever 120S. It is configured to include a contact type test switch (S2) mounted on the circuit board constituting the alarm sound generator 140 so that contact can be made.

According to the independent temperature response automatic fire alarm 100 of the present invention further comprising a switch for testing the alarm sound output as described above, in a normal setting state, as schematically shown in FIG. 5A, the test switch operating lever ( 120S) and the test switch S2 are kept in a spaced state.

However, on the other hand, when the fire monitoring personnel press the test switch operation lever 120S regularly and periodically as necessary to operate the test switch S2 in the normal setting state, the alarm sound generator 140 Is activated to output an alarm sound.

Therefore, according to the independent temperature response automatic fire alarm 100 according to the present invention, it is possible to check whether the alarm sound is output without accompanying damage or deformation of the heat-sensitive member 130. Accordingly, the reliability of the product can be greatly improved because it is possible to identify and confirm malfunctions even before the occurrence of fire through periodic and regular inspection.

On the other hand, according to another aspect of the present invention, the independent temperature-responsive automatic fire alarm 100 according to the present invention includes a mesh fence 151 that surrounds and protects the heat-sensitive member 130 in the form of a curtain. And a protective cover 150 detachably installed on the lower case 110 and the upper cover 120. According to this configuration, when the heat-sensitive member (glass bulb) 130 is damaged or deformed, the mesh fence 151 restrains the fragments and protects the protective cover 150 It can be accommodated in the inside of the cover 150. Accordingly, by preventing the fragments of the heat-sensitive member (glass bulb) 130 from scattering to the periphery, damage to the surrounding main parts can be suppressed, thereby facilitating economical repair and repair. In such a configuration, it is preferable that the mesh fence employs various metal nets having excellent thermal conductivity so as to increase sensitivity and precision to the temperature reaction of the heat-sensitive member.

The present invention is not limited to the specific preferred embodiments described above, and anyone of ordinary skill in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. And such changes will fall within the scope of the described claims.

110: lower case 111: battery cover
112: alarm sound output grill 120: upper cover
120S: test switch operation lever 121: start switch operation lever
121a: heat-sensitive member support groove 122: spring
123: support rib 130: heat-sensitive member
140: alarm sound output unit 140: switch operation unit
141: battery 150: protective cover
151: mesh fence S1: start switch
S2: test switch S3: speaker unit

Claims (5)

A lower case 110 and an upper cover 120 complementarily coupled to form a housing in which a storage space is formed;
An alarm sound generator 140 provided in the lower case 110;
A start switch (S1) for transmitting an alarm sound output signal to the alarm sound generator 140;
A start switch operation lever 121 installed to be elastically biased downward to the upper cover 120 to operate the start switch S1 to operate the start switch S1 by rotation of the free end; And
Including; a heat-sensitive member 130 set in the lower case 110 so as to press the free end of the start switch operation lever 121 upward to support the suppressed static restraint state,
The start switch operation lever 121 is installed in a state in which the fixed end is hinged to the support rib 123 provided on the upper cover 120 and the free end is elastically biased downward and can be rotated, and the thermal member 130 is installed in a state detachably exposed to the lower case 110 so as to support the free end of the start switch operation lever 121 in an oppressed static restraint state. As the member 130 reacts at a constant ambient temperature and is damaged or deformed, the free end restraint state of the start switch operation lever 121 is released, and the starting switch S1 rotates and descends directly downward by a downward elastic bias force. ), and the alarm sound generator 140 outputs an alarm sound. delete The method of claim 1,
The independent temperature response automatic fire alarm, characterized in that it further comprises a switch for the alarm sound output test made to check whether the alarm sound is output or not without accompanying damage or deformation of the heat-sensitive member. The method of claim 3,
The alarm sound output test switch,
A test switch operating lever (120S) made of a rib shape in which a part of the plate body of the upper cover 120 is cut to allow up-and-down elastic flow,
Independent temperature response automatic fire alarm, characterized in that it comprises a test switch (S2) provided in the alarm sound generator 140 and the test switch operation lever (120S) and the contact to be made. The method according to any one of claims 1 and 3 and 4,
Further comprising a mesh fence 151 surrounding and protecting the heat-sensitive member 130 and a protective cover 150 detachably installed on the lower case 110 and the upper cover 120 Independent temperature response automatic fire alarm, characterized in that.

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