Fire-fighting fire alarm detection device

Abstract

The utility model discloses a fire-fighting fire alarm detection device, which relates to the technical field of fire alarm detection and comprises a temperature sensing probe and an alarm. An electric heating body is arranged on one side of the temperature sensing probe; the electric heating body is powered by mains supply; the switch is used for controlling the power-on and power-off of the electric heating body; according to the utility model, by turning on the switch, the commercial power can supply power to the electric heating body, so that the electric heating body emits heat, the temperature at the temperature sensing probe is improved, the fire environment is simulated, the fire-fighting fire alarm detection device can be conveniently and rapidly detected at regular intervals, and the safety and accuracy of fire detection alarm are further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fire alarm detection, in particular to a fire alarm detection device. Background Art

[0002] Fire alarm detection device is a device that detects fires at various sites. Once there is a fire, it converts the characteristic physical quantities of the fire, such as temperature, smoke, gas or radiation intensity, into electrical signals and sends signals to the fire alarm controller, which controls the alarm to sound the alarm.

[0003] Thermosensitive fire alarm detection devices are commonly used firefighting equipment that mainly use thermistors to detect temperature to detect fires and alarms. Thermistors have a fast response speed and are very suitable for fires that generate a lot of heat but no smoke or a small amount of smoke, as well as places that are normally dusty, humid, have smoke and water vapor retention, and are not suitable for smoke fire alarm detectors.

[0004] There are a large number of temperature-sensing fire alarm detection devices installed. When the temperature-sensing fire alarm detection device has not triggered an alarm for a long time, it is necessary to conduct regular inspections. The temperature-sensing fire alarm detection device is manually disassembled one by one, which consumes a lot of manpower and time. The temperature-sensing fire alarm detection device does not have the self-inspection function to complete the fire detection alarm function, which affects the efficiency of the detection operation, makes the detection difficult, and even causes a large number of missed detections, posing certain safety hazards. Utility Model Content

[0005] The purpose of the utility model is to provide a fire alarm detection device in order to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fire alarm detection device comprises a temperature sensing probe and an alarm; an electric heating body is arranged on one side of the temperature sensing probe; the electric heating body is powered by mains electricity; and a switch for controlling the on and off of the electric heating body is also included.

[0008] Furthermore, the alarm is an audible and visual alarm.

[0009] Furthermore, it also includes a controller, which controls the alarm according to the signal of the temperature sensing probe.

[0010] Furthermore, it also includes an upper shell and a lower shell, which are connected by bolts; a plurality of bolts are passed through the edge of the lower shell, and a plurality of threaded hole seats corresponding to the bolts are provided at the edge of the upper shell.

[0011] Furthermore, a plurality of mounting holes are provided on the edge of the upper shell; and a threading hole is provided in the middle of the upper shell.

[0012] Furthermore, the temperature sensing probe and the alarm are both installed on the wall of the lower shell; a mesh shell is provided on the lower side of the lower shell to shield the lower part of the temperature sensing probe.

[0013] Furthermore, the electric heating body is installed on the lower side of the lower shell, and the shape of the electric heating body is spiral; the electric heating body is located in the mesh shell; and the lower part of the temperature sensing probe passes through the electric heating body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can use the mains electricity to supply power to the electric heating body by turning on the switch, so that the electric heating body can emit heat and increase the temperature at the temperature sensing probe, simulating a fire environment. The fire alarm detection device can be conveniently and quickly inspected regularly, thereby ensuring the safety and accuracy of the fire detection alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the utility model from the first perspective.

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0018] Figure 3 This is a first-person exploded schematic diagram of the present invention.

[0019] Figure 4 This is a schematic diagram of an explosion from a second viewing angle of the present invention.

[0020] In the figure: 1. Temperature sensor; 2. Sound and light alarm; 3. Electric heating element; 4. Controller; 5. Switch; 6. Upper shell; 7. Lower shell; 8. Bolt; 9. Threaded hole seat; 10. Mounting hole; 11. Threading hole; 12. Mesh shell. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0023] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The present invention is further described in detail below in conjunction with the embodiments.

[0027] The specific embodiment of the fire alarm detection device provided by the utility model is as follows:

[0028] See also Figure 1-4 The fire alarm detection device comprises a circular upper shell 6 and a lower shell 7. In this embodiment, the upper shell 6 and the lower shell 7 are connected by bolts 8. Three bolts 8 are evenly penetrated on the edge of the lower shell 7, and three threaded holes 9 corresponding to the bolts 8 are arranged on the edge of the upper shell 6. In some other embodiments, the upper shell 6 and the lower shell 7 can be connected by a clamping method instead of the bolts 8 in this embodiment.

[0029] Three mounting holes 10 are evenly arranged on the circumference of the edge of the upper shell 6, and the upper shell 6 is fixed to the ceiling through the mounting holes 10; a threading hole 11 is arranged in the middle of the upper shell 6, and when the upper shell 6 is fixed, the threading hole 11 corresponds to the wire groove on the ceiling, so as to facilitate the connection between the internal components of the shell and the external components.

[0030] A temperature sensing probe 1 and an alarm are provided on the shell wall of the lower shell 7; in this embodiment, a thermocouple for detecting temperature is provided at the lower end of the temperature sensing probe 1 for detecting the ambient temperature; the alarm adopts an audible and visual alarm 2, and the dual alarm of sound and light makes the alarm information transmission more three-dimensional.

[0031] The temperature probe 1 and the alarm are connected to the controller 4 through a signal line, and the signal line passes through the threading hole 11; the controller 4 can be a single-chip microcomputer, a PLC or a micro control unit. The controller 4 controls the alarm to sound an alarm according to the signal of the temperature probe 1, that is, when the temperature probe 1 detects that the ambient temperature is higher than the threshold. A power supply needs to be set to power the controller 4. The power supply of the controller 4 is a prior art and is not the focus of protection of this embodiment, so it is not shown in the figure.

[0032] A mesh shell 12 is provided on the lower side of the lower shell 7 to shield the lower part of the temperature sensing probe 1; the temperature sensing probe 1 is located in the mesh shell 12, and the mesh shell 12 has mesh holes, which does not affect the connection between the temperature sensing probe 1 and the external environment and can also protect the temperature sensing probe 1; the alarm is located outside the mesh shell 12, which is convenient for observing the alarm information.

[0033] An electric heating body 3 is provided on one side of the temperature sensing probe 1; the electric heating body 3 is installed on the lower side of the lower shell 7, and the shape of the electric heating body 3 is spiral; the electric heating body 3 is located in the mesh shell 12; the lower part of the temperature sensing probe 1 passes through the electric heating body 3. The electric heating body 3 is connected to a power supply line, which passes through the shell wall of the lower shell 7 and through the threading hole 11 to connect to the mains power, and is powered by the mains power; a switch 5 is provided on the power supply line, and the switch 5 is used to control the on and off of the electric heating body 3.

[0034] When it is necessary to test the fire alarm detection device, just press the switch 5, the mains electricity supplies the electric heating body 3 with heat, and the electric heating body 3 raises the temperature of the temperature sensing probe 1. When the temperature rises above the threshold, if the alarm sounds, it means that the fire alarm detection device functions normally and the routine test is completed. If the alarm does not sound, it means that the fire alarm detection device is faulty and it can be repaired or replaced.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fire alarm detection device, comprising a temperature sensing probe (1) and an alarm; Features: An electric heating body (3) is provided on one side of the temperature sensing probe (1); the electric heating body (3) is powered by mains electricity; and a switch (5) is also included for controlling the on and off of power to the electric heating body (3).

2. The fire alarm detection device according to claim 1, Features: The alarm is an audible and visual alarm (2).

3. The fire alarm detection device according to claim 1 or 2, Features: It also includes a controller (4), which controls the alarm according to the signal from the temperature sensing probe (1).

4. The fire alarm detection device according to claim 1, Features: It also comprises an upper shell (6) and a lower shell (7), wherein the upper shell (6) and the lower shell (7) are connected by bolts (8); a plurality of bolts (8) are passed through the edge of the lower shell (7), and a plurality of threaded hole seats (9) corresponding to the bolts (8) are provided on the edge of the upper shell (6).

5. The fire alarm detection device according to claim 4, Features: A plurality of mounting holes (10) are provided at the edge of the upper shell (6); and a threading hole (11) is provided in the middle of the upper shell (6).

6. The fire alarm detection device according to claim 4 or 5, Features: The temperature sensing probe (1) and the alarm are both installed on the wall of the lower shell (7); a mesh shell (12) is provided on the lower side of the lower shell (7) to shield the lower part of the temperature sensing probe (1).

7. The fire alarm detection device according to claim 6, Features: The electric heating body (3) is installed on the lower side of the lower shell (7), and the shape of the electric heating body (3) is spiral; the electric heating body (3) is located in the mesh shell (12); and the lower part of the temperature sensing probe (1) passes through the electric heating body (3).

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