Protective gas area alarm

Abstract

The utility model discloses a protective gas area alarm, which comprises an alarm shell made of plastic materials, mounting plates are fixedly mounted on the left side and the right side of the alarm shell, the upper surface of the alarm shell is connected with a power supply line, and a gas sensor and an air quality sensor are fixedly mounted on the outer surface of the front side of the alarm shell. An alarm buzzer is fixedly installed on the upper surface of the alarm shell, and a control circuit board is fixedly installed in the alarm shell. According to the protective gas area alarm, the novel structural design is adopted, the alarm shell is installed on the wall surface through the installation plate, meanwhile, the gas sensor and the air quality sensor are used for detecting specific gas in control in an area and controlling the quality, and the alarm buzzer is started to remind workers when the content exceeds the standard; during normal use, the protection plate outside the front side of the alarm shell is used for protecting the gas sensor and the air quality sensor, and damage caused by personnel activity is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas area alarm technical field, concretely is a protective type gas area alarm. BACKGROUND

[0002] The gas area alarm is a kind of safety equipment for monitoring the gas concentration in specific area, mainly used to detect the leakage of flammable gas (such as natural gas, liquefied gas), toxic gas (such as carbon monoxide, hydrogen sulfide) or specific industrial gas, and trigger sound and light alarm when the gas concentration exceeds the safety threshold, prompting personnel to take emergency measures.

[0003] In the prior art, the medical gas area alarm with the patent number CN202321481347.3 is disclosed, which includes a box body, a control processor is arranged in the box body, a detection probe is arranged on the box body, the detection probe is electrically connected to the control processor, the box body includes a U-shaped front cover, a back plate and side end covers, the back plate is arranged in the U-shaped front cover, the side end covers are arranged on both sides of the U-shaped front cover, mounting blocks are arranged on the side end covers, elastic members are arranged on the mounting blocks, limiting through holes are arranged on the U-shaped front cover for the elastic members to pass through, so that the U-shaped front cover can be detachably connected to the side end covers, which is simple to disassemble and assemble, and facilitates the maintenance of internal elements, replacing the bolt fixing mode, which is labor-saving and convenient.

[0004] According to the above-mentioned materials, it can be known that the gas area alarm in the prior art is generally fixed on the wall surface by bolts, but in the actual use process, the alarm needs to be used with multiple sensors, and the sensors are located outside the alarm. Without protective measures, personnel activities can easily cause damage to the alarm (such as impact of carrying objects). UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a protective type gas area alarm to solve the problem of poor protection effect in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a protective type gas area alarm, which comprises a plastic alarm shell, mounting plates are fixedly installed on the left and right sides of the alarm shell, a power supply line is connected to the upper surface of the alarm shell, a gas sensor, an air quality sensor and a display panel are fixedly installed on the front outer surface of the alarm shell, an alarm buzzer is fixedly installed on the upper surface of the alarm shell, and a control circuit board is fixedly installed in the alarm shell; a protective plate for protecting the gas sensor and the air quality sensor is installed on the front outer part of the alarm shell, the protective plate is provided in a mesh structure, and a sliding mechanism for moving the protective plate up and down is arranged on the front side of the alarm shell; a heat dissipation pump is fixedly installed at the middle position in the alarm shell.

[0007] Preferably, the sliding mechanism comprises connecting blocks fixedly installed on the left and right sides of the protective plate, and the connecting blocks and the limiting sliding groove form an up-down sliding structure, and a fixing buckle is rotatably installed outside the connecting blocks.

[0008] Preferably, the limiting sliding groove is arranged on the front outer surface of the alarm shell, a return spring is fixedly installed inside the limiting sliding groove, and the lower end of the return spring is fixedly connected with the upper surface of the connecting block.

[0009] Preferably, an air inlet mesh is fixedly installed on the front outer surface of the alarm shell, and an air outlet grille is arranged on the upper surface of the alarm shell.

[0010] Preferably, a heat dissipation air duct is formed between the air inlet mesh and the air outlet grille, and dry cotton corresponding to the air inlet mesh is fixedly installed at the middle position of the inner surface of the protective plate.

[0011] Preferably, an air inlet pipe is arranged on the lower surface of the heat dissipation pump, and an air outlet pipe is arranged on the side surface of the heat dissipation pump.

[0012] Preferably, the lower end of the air inlet pipe is in a funnel structure and corresponds to the position of the air inlet mesh, and the air outlet pipe corresponds to the position of the control circuit board.

[0013] Compared with the prior art, the protective gas area alarm has the advantages that:

[0014] 1. The alarm shell is installed on the wall surface by the mounting plate, the specific gas (such as carbon monoxide, natural gas, etc.) and the control quality in the area are detected by the gas sensor and the air quality sensor, the alarm buzzer is opened to remind the staff when the content exceeds the standard, and the protective plate on the front outer surface of the alarm shell protects the gas sensor and the air quality sensor during normal use, so as to avoid damage caused by personnel activities.

[0015] Further, when maintenance is needed, the protective plate is moved upward, the connecting blocks on the left and right sides of the protective plate slide in the limiting sliding groove, the fixing buckle is finally clamped with the upper end of the alarm shell, the protective plate is fixed, the gas sensor and the air quality sensor are exposed, and the maintenance is facilitated.

[0016] 2. When the device is used, the heat dissipation pump is opened, the air inlet mesh position generates negative pressure by the air inlet pipe, the surrounding holes are sucked to the vicinity of the gas sensor and the air quality sensor under the action of the negative pressure, so that the detection speed of the device is faster (that is, the gas in the area can reach the detection area faster).

[0017] Further, the air sucked by the air inlet pipe is discharged from the air outlet pipe, so that the gas flow is realized, the heat dissipation air duct is formed between the air inlet net and the air outlet grid by using the gas flow, the purpose of heat dissipation in the device is achieved, and the device is prevented from being damaged due to overheating after long time use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a protective plate lifting state structure schematic view of the utility model;

[0020] Figure 3 It is a protective plate lifting state structure schematic view of the utility model; Figure 2 It is an enlarged structure schematic view of A in the utility model;

[0021] Figure 4 It is an internal structure schematic view of the limiting sliding groove of the utility model;

[0022] Figure 5 It is an internal structure schematic view of the alarm shell of the utility model;

[0023] Figure 6 It is a structure schematic view of the heat dissipation pump of the utility model;

[0024] Figure 7 It is a structure schematic view of the dry cotton of the utility model.

[0025] In the figure: 1, alarm shell; 2, mounting plate; 3, power supply wire; 4, gas sensor; 5, air quality sensor; 6, alarm buzzer; 7, control circuit board; 8, display panel; 9, protective plate; 10, connecting block; 11, limiting sliding groove; 12, reset spring; 13, fixing buckle; 14, air inlet net; 15, air outlet grid; 16, heat dissipation pump; 17, air inlet pipe; 18, air outlet pipe; 19, dry cotton. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment one: please refer to Figures 1-4The embodiment discloses an alarm shell 1 made of plastic, mounting plates 2 are fixedly installed on the left and right sides of the alarm shell 1, a power supply line 3 is connected to the upper surface of the alarm shell 1, a gas sensor 4, an air quality sensor 5 and a display panel 8 are fixedly installed on the front outer surface of the alarm shell 1, an alarm buzzer 6 is fixedly installed on the upper surface of the alarm shell 1, and a control circuit board 7 is fixedly installed in the alarm shell 1, a protection plate 9 for protecting the gas sensor 4 and the air quality sensor 5 is installed on the front side of the alarm shell 1, the protection plate 9 is provided with a mesh structure, and a sliding mechanism for moving the protection plate 9 up and down is arranged on the front side of the alarm shell 1, the sliding mechanism comprises connecting blocks 10 fixedly installed on the left and right sides of the protection plate 9, and the connecting blocks 10 and limiting sliding grooves 11 form an up-and-down sliding structure, and a fixed buckle 13 is rotatably installed on the outer portion of the connecting block 10, the limiting sliding grooves 11 are formed in the front outer surface of the alarm shell 1, a reset spring 12 is fixedly installed in the limiting sliding groove 11, and the lower end of the reset spring 12 is fixedly connected to the upper surface of the connecting block 10.

[0028] In use, the alarm shell 1 is fixedly installed on the wall surface by means of the mounting plates 2 and the bolt cooperation, then the power supply line 3 is connected to supply power to the whole device, at this time, the gas sensor 4 is started to monitor the harmful gas (such as carbon monoxide or natural gas) possibly existing in the monitoring area, and the air quality sensor 5 is used to monitor the air quality (such as humidity or dust) in the monitoring area, in this process, the connecting blocks 10 are pushed to move downwards under the elastic action of the reset spring 12, so that the protection plate 9 is located below, and the gas sensor 4 and the air quality sensor 5 are protected, when the gas sensor 4 and the air quality sensor 5 need to be maintained, the protection plate 9 is first moved upwards, at this time, the connecting blocks 10 at the left and right ends of the protection plate 9 slide in the limiting sliding grooves 11, finally the fixed buckle 13 is rotated upwards and is clamped and fixed to the upper end of the alarm shell 1, so that the protection plate 9 is fixed to the upper end, and the gas sensor 4 and the air quality sensor 5 are exposed.

[0029] Embodiment two: please refer to Figures 5-7 The embodiment is used for improving the speed of the device, the alarm shell 1 is fixedly installed at the middle position in the interior, an air inlet net 14 is fixedly installed on the front outer surface of the alarm shell 1, an air outlet grille 15 is formed in the upper surface of the alarm shell 1, a dry cotton 19 corresponding to the air inlet net 14 is fixedly installed at the middle position on the inner side surface of the protection plate 9, an air inlet pipe 17 is arranged on the lower surface of a heat dissipation pump 16, an air outlet pipe 18 is arranged on the side surface of the heat dissipation pump 16, the lower end of the air inlet pipe 17 is provided with a funnel-shaped structure and corresponds to the position of the air inlet net 14, and the air outlet pipe 18 corresponds to the position of the control circuit board 7.

[0030] In the process of using the device, the heat dissipation pump 16 inside the alarm shell 1 is started, at this time, the air inlet net 14 is made to form a negative pressure by using the air inlet pipe 17, under the action of the negative pressure, the surrounding air enters the inside of the alarm shell 1 through the air inlet net 14 (at this time, the air is dried by using the dry cotton 19, so as to avoid moisture from entering), so that the air in the region can reach the vicinity of the device faster, the overall corresponding speed of the device is improved, the entering air is discharged from the air outlet pipe 18 on the side of the heat dissipation pump 16, and finally is discharged from the air outlet grille 15, and the heat of the inside of the alarm shell 1 is dissipated by using the flow of the air.

[0031] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the directions or position relations indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A protective gas area alarm, comprising a plastic alarm shell (1), the left and right sides of the alarm shell (1) are fixedly installed with mounting plates (2), and the upper surface of the alarm shell (1) is connected with a power supply line (3), characterized in that, Also include: The alarm shell (1) front side fixedly installed with gas sensor (4), air quality sensor (5) and display panel (8), and the alarm shell (1) upper surface fixedly installed with alarm buzzer (6), and the alarm shell (1) inside fixedly installed with control circuit board (7); The alarm shell (1) front side is provided with protective plate (9) for protecting gas sensor (4) and air quality sensor (5), and the protective plate (9) is provided with mesh structure, and the alarm shell (1) front side is provided with sliding mechanism for moving the protective plate (9) up and down; The alarm shell (1) inside middle position fixedly installed with heat dissipation pump (16).

2. A guard gas area alarm according to claim 1, wherein: The sliding mechanism includes connecting block (10) fixedly installed on both sides of protective plate (9), and the connecting block (10) and the limiting sliding groove (11) constitute up and down sliding structure, and the connecting block (10) is rotatably installed with fixed buckle (13) outside.

3. A guard gas area alarm according to claim 2, wherein: The limiting sliding groove (11) is opened in the front side of the alarm shell (1), and the limiting sliding groove (11) is fixedly installed with reset spring (12) inside, and the reset spring (12) lower end is fixedly connected with the upper surface of the connecting block (10).

4. A guard gas area alarm according to claim 1, wherein: The alarm shell (1) front side fixedly installed with air inlet net (14), and the alarm shell (1) upper surface is provided with air outlet grille (15).

5. A guard gas area alarm according to claim 4, wherein: The air inlet net (14) and the air outlet grille (15) form a heat dissipation air duct, and the protective plate (9) inside surface middle position fixedly installed with dry cotton (19) corresponding to the air inlet net (14).

6. A guard gas area alarm according to claim 1, wherein: The lower surface of the heat dissipation pump (16) is provided with air inlet pipe (17), and the side of the heat dissipation pump (16) is provided with air outlet pipe (18).

7. A guard gas area alarm according to claim 6, wherein: The lower end of the air inlet pipe (17) is provided with funnel structure and corresponds to the position of the air inlet net (14), and the air outlet pipe (18) corresponds to the position of the control circuit board (7).

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