Pressure loss alarm device for fire extinguisher

Abstract

The utility model discloses a fire extinguisher pressure loss alarm device, which relates to the field of fire extinguisher pressure prompt equipment, and adopts the technical scheme that the fire extinguisher pressure loss alarm device comprises a cylindrical shell, openings are respectively formed in two sides of the shell, a plurality of fixing clamps are arranged on the shell with the opening on one side in an array manner, and a cover plate is arranged on the other side; two fixing plates are symmetrically arranged on the inner wall of the shell, inserting grooves are formed in the opposite sides of the two fixing plates, a circuit board is inserted into the inserting grooves, a diffuse reflection photoelectric sensor is arranged on the circuit board, and the sensing end of the diffuse reflection photoelectric sensor faces the opening end, close to the fixing clamp, of the shell; the circuit board is further provided with a buzzer and a warning lamp, and the diffuse reflection photoelectric sensor is electrically connected with the buzzer and the warning lamp through the circuit board. The device has the beneficial effects that the device is small and flexible, and is convenient for various fire extinguisher working conditions; the fire extinguisher pressure reducing and disappearing can be found in the first time, and the fire extinguisher pressure reducing and disappearing device is safe, reliable, convenient to transfer and adjustable, meets the requirement of green construction and has excellent construction scene adaptability.

Description

Technical Field

[0001] The utility model relates to the field of fire extinguisher pressure prompting equipment, in particular to a fire extinguisher pressure loss alarm device. Background Art

[0002] During the main construction of high-rise buildings, double sets of fire extinguishers will be installed at the construction site, office area, and living area to extinguish the flames in the bud as soon as possible. There is pressure inside the fire extinguisher, but during use, the internal pressure of the fire extinguisher gradually decreases. When the pressure pointer points to the yellow area, the fire extinguisher needs to be punched again. If it is not punched, the pressure will continue to decrease until the pointer points to the red area. The internal pressure of the fire extinguisher can no longer meet the fire extinguishing needs, and the fire extinguisher needs to be scrapped. Because the pressure disappears irregularly, personnel need to be arranged for regular inspections, which is very inconvenient and cannot be discovered and handled immediately. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a fire extinguisher pressure loss alarm device.

[0004] The technical solution is as follows: it comprises a circular cylindrical shell, openings are respectively arranged on both sides of the shell, a plurality of fixing cards are arranged in an array on the shell with one opening, and a cover plate is arranged on the other side;

[0005] Two fixing plates are symmetrically arranged on the inner wall of the housing, and slots are arranged on opposite sides of the two fixing plates, and a circuit board is inserted into the slot, and a diffuse reflection photoelectric sensor is arranged on the circuit board, and the sensing end of the diffuse reflection photoelectric sensor faces the opening end of the housing close to the fixing card;

[0006] A buzzer and a warning light are also arranged on the circuit board, and the diffuse reflection photoelectric sensor is electrically connected to the buzzer and the warning light through the circuit board.

[0007] Preferably, a photovoltaic panel is fixedly arranged in the middle of the cover plate, and the photovoltaic panel is electrically connected to the circuit board.

[0008] Preferably, an annular magnet block is provided on a side of the cover plate facing away from the photovoltaic panel, and the cover plate is connected to the housing via the magnet block.

[0009] Preferably, a battery compartment is further provided on the circuit board, a button battery is provided in the battery compartment, and the button battery is electrically connected to the circuit board through the battery compartment.

[0010] Preferably, the fixing card is in an "L" shape, with a longer end of the fixing card fixedly connected to the housing and the other end facing the axis of the housing.

[0011] Preferably, a bevel is provided at a corner of the fixed card away from the outer shell.

[0012] Preferably, sound transmission holes are provided on the outer shell.

[0013] Preferably, a through hole is formed on the outer shell, and the warning light penetrates through the through hole and extends to the outside of the outer shell.

[0014] The beneficial effects brought by the technical solution provided by the embodiment of the present utility model are as follows: This device is small and flexible, facilitating various fire extinguisher working conditions; it can detect the reduction and disappearance of the fire extinguisher pressure in the first time, is safe and reliable, convenient for turnover, adjustable, not only meets the requirements of green construction but also has excellent adaptability to the construction scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present utility model Figure 1 .

[0016] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present utility model Figure 2 .

[0017] Figure 3 is a schematic diagram of the circuit board structure of the embodiment of the present utility model.

[0018] Figure 4 is a schematic diagram of the outer shell structure of the embodiment of the present utility model.

[0019] Among them, the reference numerals are: 1, outer shell; 2, fixed card; 3, cover plate; 4, fixing plate; 5, circuit board; 6, diffuse reflection photoelectric sensor; 7, buzzer; 8, warning light; 9, photovoltaic panel; 10, battery compartment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0022] In the description of the creation of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the creation of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the creation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the creation of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0023] In the description of the creation of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present utility model can be understood through specific circumstances.

[0024] Embodiment 1

[0025] See Figures 1 to 4 , the present utility model provides a pressure loss alarm device for a fire extinguisher, which includes a circular cylindrical outer shell 1. Openings are respectively arranged on both sides of the outer shell 1. A plurality of fixed cards 2 are arranged in an array on the outer shell 1 with an opening on one side, and a cover plate 3 is arranged on the other side;

[0026] Two fixing plates 4 are symmetrically arranged on the inner wall of the outer shell 1. Slots are arranged on the opposite sides of the two fixing plates 4. A circuit board 5 is inserted into the slots. A diffuse reflection photoelectric sensor 6 is arranged on the circuit board 5. The sensing end of the diffuse reflection photoelectric sensor 6 faces the open end of the outer shell 1 close to the fixed card 2;

[0027] A diffuse reflection photoelectric sensor is a kind of photoelectric sensor that works based on the principle of diffuse reflection of light by an object;

[0028] When light irradiates on the surface of an object, diffuse reflection will occur, and part of the reflected light will be received by the diffuse reflection photoelectric sensor; by detecting the change in the intensity of the reflected light or other related parameters, the diffuse reflection photoelectric sensor can sense information such as the presence, position, distance, and color of the object;

[0029] When the pressure inside the fire extinguisher is normal, the pointer of the pressure gauge is in the normal position, and the characteristics of the reflected light received by the diffuse reflection photoelectric sensor conform to the preset normal state;

[0030] Once the fire extinguisher loses pressure, the position of the pointer of the pressure gauge will change, and at this time, the characteristics of the reflected light received by the diffuse reflection photoelectric sensor will also change accordingly; after this change is captured by the sensor, it will trigger the buzzer and warning light through the circuit board, thus realizing the function of pressure loss alarm;

[0031] A buzzer 7 and a warning light 8 are also arranged on the circuit board 5, and the diffuse reflection photoelectric sensor 6 is electrically connected to the buzzer 7 and the warning light 8 through the circuit board 5.

[0032] A photovoltaic panel 9 is fixedly arranged in the middle of the cover plate 3, and the photovoltaic panel 9 is electrically connected to the circuit board 5, using the photovoltaic panel 9 to supply power to the device, saving energy and improving the convenience of use and the battery life of the device.

[0033] An annular magnet block is arranged on the side of the cover plate 3 facing away from the photovoltaic panel 9, and the cover plate 3 is connected to the outer shell 1 through the magnet block.

[0034] Furthermore, the outer shell 1 is made of metal material, which is convenient for the installation and disassembly of the cover plate 3 and is conducive to the maintenance and replacement of internal components.

[0035] A battery compartment 10 is also arranged on the circuit board 5, a button battery is arranged in the battery compartment 10, and the button battery is electrically connected to the circuit board 5 through the battery compartment 10. When there is no light condition, the device is powered by the button battery to ensure the normal operation of the device.

[0036] The fixing clip 2 is in an "L" shape. The longer end of the fixing clip 2 is fixedly connected to the outer shell 1, and the other end faces the axis of the outer shell 1. The fixing clip 2 of this shape can stably fix the device on the pressure gauge of the fire extinguisher.

[0037] An inclined angle is arranged at a corner of the fixing clip 2 away from the outer shell 1. The inclined angle facilitates the installation of the device on the pressure gauge of the fire extinguisher and reduces the obstruction during installation.

[0038] Sound transmission holes are arranged on the outer shell 1 to ensure that the sound of the buzzer 7 can be effectively diffused and improve the alarm effect.

[0039] A through hole is opened on the outer shell 1, and the warning light 8 penetrates through the through hole and extends to the outside of the outer shell 1, making the light of the warning light 8 easier to be observed and enhancing the warning effect.

[0040] When the utility model is in use, first put the button battery into the battery compartment 10, push the circuit board 5 into the groove of the outer shell 1, then fix the outer shell 1 on the fire extinguisher pressure gauge through the fixing card 2, and adjust the position of the diffuse reflection photoelectric sensor 6 so that the diffuse reflection photoelectric sensor 6 can work normally. Rotate the outer shell 1 to align the sensing end of the diffuse reflection photoelectric sensor 6 with the yellow area on the fire extinguisher pressure gauge.

[0041] When the pressure of the fire extinguisher decreases and the pointer points to the yellow area, the characteristics of the reflected light received by the diffuse reflection photoelectric sensor 6 also change accordingly. After this change is captured by the diffuse reflection photoelectric sensor 6, it will trigger the buzzer 7 and the warning light 8 through the circuit board, thus realizing the function of low-pressure alarm. The buzzer 7 gives an alarm, and at the same time the warning light 8 is turned on to give a light alarm, reminding the operators and passers-by to pay attention, and immediately arranging personnel to press the fire extinguisher and replace it with a qualified one to eliminate potential hazards.

[0042] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A fire extinguisher pressure loss alarm device, characterized in that: It comprises a circular cylindrical shell (1), wherein openings are respectively arranged on both sides of the shell (1), wherein a plurality of fixing cards (2) are arranged in an array on the shell (1) with one side being open, and a cover plate (3) is arranged on the other side; Two fixing plates (4) are symmetrically arranged on the inner wall of the housing (1); slots are arranged on opposite sides of the two fixing plates (4); a circuit board (5) is inserted into the slot; a diffuse reflection photoelectric sensor (6) is arranged on the circuit board (5); a sensing end of the diffuse reflection photoelectric sensor (6) faces the opening end of the housing (1) close to the fixing card (2); A buzzer (7) and a warning light (8) are also provided on the circuit board (5), and the diffuse reflection photoelectric sensor (6) is electrically connected to the buzzer (7) and the warning light (8) via the circuit board (5).

2. The fire extinguisher pressure loss alarm device according to claim 1, characterized in that: A photovoltaic panel (9) is fixedly arranged in the middle of the cover plate (3), and the photovoltaic panel (9) is electrically connected to the circuit board (5).

3. The fire extinguisher pressure loss alarm device according to claim 2, characterized in that: An annular magnet block is arranged on the side of the cover plate (3) facing away from the photovoltaic panel (9), and the cover plate (3) is connected to the housing (1) via the magnet block.

4. The fire extinguisher pressure loss alarm device according to claim 1, characterized in that: A battery compartment (10) is also provided on the circuit board (5), a button battery is provided in the battery compartment (10), and the button battery is electrically connected to the circuit board (5) via the battery compartment (10).

5. The fire extinguisher pressure loss alarm device according to claim 1, characterized in that: The fixing card (2) is in an "L" shape, with a longer end of the fixing card (2) being fixedly connected to the outer shell (1), and the other end facing the axis of the outer shell (1).

6. The fire extinguisher pressure loss alarm device according to claim 5, characterized in that: A corner of the fixing card (2) away from the housing (1) is provided with an oblique angle.

7. The fire extinguisher pressure loss alarm device according to claim 1, characterized in that: The housing (1) is provided with a sound-permeable hole.

8. The fire extinguisher pressure loss alarm device according to claim 1, characterized in that: A through hole is provided on the shell (1), and the warning light (8) passes through the through hole and extends to the outside of the shell (1).

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