Toxic agent alarm upgrading and rebuilding structure

Abstract

The utility model relates to the technical field of toxic agent alarm equipment, in particular to a toxic agent alarm upgrading and transforming structure which comprises a toxic agent alarm, two battery boxes are arranged on the toxic agent alarm, a common battery pack is installed in one battery box, and a standby battery pack is installed in the other battery box. Each of the common battery pack and the standby battery pack comprises a plurality of poly lithium batteries which are sequentially connected in series; the toxic agent alarm is provided with a single-pole double-throw switch, the positive electrode of the common battery pack and the positive electrode of the standby battery pack are electrically connected with the corresponding fixed ends of the single-pole double-throw switch respectively, and the negative electrode of the common battery pack and the negative electrode of the standby battery pack are electrically connected with the negative electrode of an electricity load of the toxic agent alarm. The moving end of the single-pole double-throw switch is electrically connected with the positive electrode of the electricity load of the toxic agent alarm. According to the utility model, the operation of dismounting and mounting the battery pack can be reduced, and convenience is brought to people to use the toxic agent alarm outdoors.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical agent alarm devices, and particularly relates to a structure for upgrading and transforming a chemical agent alarm. Background Art

[0002] A chemical agent alarm is a chemical agent detection device that can provide acoustic and optical alarms for contaminated air containing chemical agents such as nerve agents and blister agents, and can provide a basis for people to take measures and for safety protection; the chemical agent alarm includes a movement, a housing, and a battery. The movement includes a panel, a detector, and a frame. The panel is located on the upper surface of the housing, and the detector and the frame are located inside the housing. The detector includes a migration cell and a gas-sensitive cell. A power supply board, a control board, and an air pump are installed on the frame, and the battery is arranged on the power supply board.

[0003] When people carry a chemical agent alarm for outdoor use, since it is inconvenient to charge the chemical agent alarm outdoors, in order to prevent the battery of the chemical agent alarm from running out of power and unable to work properly, it is usually necessary to carry a spare battery. When the battery on the chemical agent alarm has insufficient power, open the cover on the battery, remove the battery with insufficient power, and install the spare battery into the battery box, then close the cover of the battery to continue using the chemical agent alarm.

[0004] In the related art, there are some inconveniences when people use a chemical agent alarm outdoors. The main problem is that it is usually necessary to carry a spare battery for the chemical agent alarm. On the one hand, there is a risk of loss of the spare battery due to its small size. On the other hand, when the battery of the chemical agent alarm has insufficient power, it is necessary to perform the operation of removing the battery with insufficient power and the operation of installing the battery with sufficient power. To a certain extent, the process of replacing the battery affects the normal use of the chemical agent alarm and brings inconvenience to people using the chemical agent alarm. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a structure for upgrading and transforming a chemical agent alarm to solve the problem that it is inconvenient for people to use a chemical agent alarm outdoors because they need to carry a spare battery separately.

[0006] The utility model is realized through the following technical solutions:

[0007] A structure for upgrading and transforming a poison gas alarm, including a poison gas alarm. There are two battery boxes arranged on the poison gas alarm. A common battery pack is installed in one battery box, and a backup battery pack is installed in the other battery box. Both the common battery pack and the backup battery pack include multiple lithium polymer batteries connected in series in sequence. A single-pole double-throw switch is arranged on the poison gas alarm. The positive electrodes of the common battery pack and the backup battery pack are respectively electrically connected to the corresponding fixed terminals of the single-pole double-throw switch. The negative electrodes of the common battery pack and the backup battery pack are both electrically connected to the negative electrode of the electrical load of the poison gas alarm. The moving terminal of the single-pole double-throw switch is electrically connected to the positive electrode of the electrical load of the poison gas alarm.

[0008] Further, both of the two battery boxes are located at the bottom of the poison gas alarm. A switch slot is opened at the bottom of the outer shell of the poison gas alarm. The single-pole double-throw switch is located inside the switch slot, and a protective cover is also arranged at the switch slot.

[0009] Further, aluminum foil outer shells are wrapped around the outside of both the common battery pack and the backup battery pack.

[0010] Further, silk ribbons are placed in both of the two battery boxes. The middle section of the silk ribbon is located below the corresponding battery pack, and both ends of the silk ribbon extend above the corresponding battery pack.

[0011] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0012] In the present utility model, when people carry the poison gas alarm and use it outdoors, they can move the moving terminal of the single-pole double-throw switch to the side of the common battery pack, so that the common battery pack is connected to the electrical load of the poison gas alarm, that is, the common battery pack supplies power to the electrical load of the poison gas alarm. When the power of the common battery pack is insufficient, at this time, the user only needs to move the moving terminal of the single-pole double-throw switch to the side of the backup battery pack. At this time, the output terminal of the common battery pack is disconnected, and the output terminal of the backup battery pack is connected to the positive electrode of the electrical load of the poison gas alarm, and the backup battery pack can be used to supply power for the operation of the poison gas alarm. In this solution, the operation of switching the battery pack is relatively convenient, without the need to disassemble and install the battery, nor to carry the backup battery additionally by other means, which brings convenience to people using the poison gas alarm outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model.

[0014] In the drawings:

[0015] Figure 1 is a bottom view of the present utility model, aiming to show the bottom structure of the poison gas alarm;

[0016] Figure 2 This is a circuit diagram of the common battery pack, backup battery pack, single-pole double-throw switch, and electrical load of the present utility model.

[0017] Marks in the attached drawings and corresponding component names:

[0018] 1. Poison gas alarm; 2. Battery box; 3. Common battery pack; 4. Backup battery pack; 5. Single-pole double-throw switch; 6. Switch slot; 7. Protective cover; 8. Silk ribbon; 9. Electrical load. Specific implementation manners

[0019] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and the attached drawings. The illustrative implementation manners of the present utility model and their descriptions are only used to explain the present utility model and do not serve as a limitation to the present utility model. It should be noted that the present utility model has been in the actual R & D and use stage.

[0020] Embodiment 1

[0021] A structure for upgrading and transforming a poison gas alarm, referring to Figure 1 、 Figure 2 , includes a poison gas alarm 1. There are two battery boxes 2 provided on the poison gas alarm 1. A common battery pack 3 is installed in one battery box 2, and a backup battery pack 4 is installed in the other battery box 2. Both the common battery pack 3 and the backup battery pack 4 include multiple lithium polymer batteries connected in series in sequence; a single-pole double-throw switch 5 is provided on the poison gas alarm 1. The positive electrodes of the common battery pack 3 and the backup battery pack 4 are respectively electrically connected to the corresponding fixed terminals of the single-pole double-throw switch 5. The negative electrodes of the common battery pack 3 and the backup battery pack 4 are both electrically connected to the negative electrode of the electrical load 9 of the poison gas alarm 1. The moving terminal of the single-pole double-throw switch 5 is electrically connected to the positive electrode of the electrical load 9 of the poison gas alarm 1. Among them, the electrical load 9 includes all electrical components such as the detection circuit and the sound and light alarm circuit inside the poison gas alarm 1.

[0022] Among them, the single-pole double-throw switch 5 is composed of a moving terminal and fixed terminals. The moving terminal is the so-called "blade". Under normal circumstances, it should be connected to the incoming line of the power supply, that is, the end where the power comes in, and is generally also the end connected to the handle of the switch; the other two ends are the two ends of the power output, that is, the so-called fixed terminals, and they are connected to the electrical equipment; its conventional function is, firstly, to control the power supply to output in two different directions, that is to say, it can be used to control two devices, or it can also be used to control the same device to switch the operating direction. It should be noted that in this solution, the single-pole double-throw switch 5 is used to switch and control the operation of the common battery pack 3 and the backup battery pack 4, achieving the effect of quickly replacing the battery pack.

[0023] The operating voltage range of the chemical agent alarm 1 is usually a 12 - 24V DC power supply. Taking the chemical agent alarm 1 with 12V as an example, the battery pack can include three or four lithium polymer batteries connected in series in sequence. The nominal voltage of a single lithium polymer battery is 3.7V, and the capacity of a single lithium polymer battery is 4.0Ah. In this embodiment, the battery pack includes four lithium polymer batteries connected in series in sequence. The operating voltage after the four lithium polymer batteries are connected in series is 14.8V, which is inconsistent with the rated voltage of the chemical agent alarm 1. However, since the original chemical agent alarm 1 has a relatively wide operating voltage range, and the combined structure of four lithium polymer batteries is more easily adapted to the battery box 2 of the original chemical agent alarm 1. In addition, the operating current of a single lithium polymer battery in the battery pack formed by connecting four lithium polymer batteries in series is smaller, which is more beneficial to the life of the battery pack. In other embodiments, the battery pack can also include three lithium polymer batteries connected in series, and the operating voltage of the battery pack after connection is 11.1V. Due to the relatively wide operating voltage range of the chemical agent alarm 1, theoretically, the combination of three lithium polymer batteries can also be used.

[0024] In this solution, when people carry the chemical agent alarm 1 for outdoor use, they can move the moving end of the single - pole double - throw switch 5 to the side of the common battery pack 3, so that the common battery pack 3 is connected to the electrical load 9 of the chemical agent alarm 1, that is, the common battery pack 3 supplies power to the electrical load 9 of the chemical agent alarm 1. When the power of the common battery pack 3 is insufficient, the user only needs to move the moving end of the single - pole double - throw switch 5 to the side of the backup battery pack 4. At this time, the output end of the common battery pack 3 is disconnected, and the output end of the backup battery pack 4 is connected to the positive pole of the electrical load 9 of the chemical agent alarm 1, and then the backup battery pack 4 can be used to supply power for the operation of the chemical agent alarm 1. In this solution, the operation of switching the battery pack is relatively convenient, without the need to disassemble and install the battery, nor to carry the backup battery additionally by other means, which brings convenience to people using the chemical agent alarm 1 outdoors.

[0025] Embodiment 2

[0026] Based on Embodiment 1, in this embodiment, referring to Figure 1 、 Figure 2 , both battery boxes 2 are located at the bottom of the chemical agent alarm 1. A switch slot 6 is opened at the bottom of the outer shell of the chemical agent alarm 1. The single - pole double - throw switch 5 is located inside the switch slot 6, and a protective cover 7 is also provided at the switch slot 6. The single - pole double - throw switch 5 is arranged in the switch slot 6 and is protected by the protective cover 7 to prevent people from accidentally touching the switch during the use of the chemical agent alarm 1.

[0027] Embodiment 3

[0028] Based on Embodiment 2, in this embodiment, referring to Figure 1 、 Figure 2, the exteriors of the common battery pack 3 and the backup battery pack 4 are both wrapped with an aluminum foil outer shell. The common battery pack 3 and the backup battery pack 4 are wrapped and sealed by the aluminum foil outer shell. When the battery pack is misused or abused, the gas pressure generated by the internal chemical reaction of the battery pack gradually increases, causing the packaging film to bulge or the aluminum film weld part to burst and relieve pressure, which improves the safety of the battery pack to a certain extent.

[0029] Embodiment 4

[0030] On the basis of Embodiment 3, in this embodiment, referring to Figure 1 , Figure 2 , silk ribbons 8 are placed in both battery boxes 2. The middle section of the silk ribbon 8 is located below the corresponding battery pack, and both ends of the silk ribbon 8 extend above the corresponding battery pack. If the battery pack is damaged, the battery pack can be taken out by pulling up the silk ribbon 8, and then a new battery pack can be replaced. Moreover, the middle section of the silk ribbon 8 is still placed below the new battery pack, which is convenient for taking out the new battery pack next time.

[0031] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An upgraded and transformed structure for a chemical agent alarm, comprising a chemical agent alarm (1), characterized in that: There are two battery boxes (2) provided on the poison gas detector (1). A common battery pack (3) is installed in one of the battery boxes (2), and a backup battery pack (4) is installed in the other battery box (2). Both the common battery pack (3) and the backup battery pack (4) include a plurality of lithium polymer batteries connected in series in sequence. A single-pole double-throw switch (5) is provided on the poison gas detector (1). The positive electrodes of the common battery pack (3) and the backup battery pack (4) are respectively electrically connected to the corresponding fixed terminals of the single-pole double-throw switch (5). The negative electrodes of the common battery pack (3) and the backup battery pack (4) are both electrically connected to the negative electrode of the electrical load (9) of the poison gas detector (1). The moving terminal of the single-pole double-throw switch (5) is electrically connected to the positive electrode of the electrical load (9) of the poison gas detector (1).

2. The upgraded and transformed structure for chemical agent alarm according to claim 1, characterized in that: Both of the two battery boxes (2) are located at the bottom of the poison gas detector (1). A switch slot (6) is opened at the bottom of the outer shell of the poison gas detector (1). The single-pole double-throw switch (5) is located inside the switch slot (6), and a protective cover (7) is also provided at the switch slot (6).

3. The structure for upgrading and transforming a chemical agent alarm according to claim 2, characterized in that: Aluminum foil outer shells are wrapped around the outsides of both the common battery pack (3) and the backup battery pack (4).

4. The structure for upgrading and transforming a chemical agent alarm according to claim 3, wherein: Silk ribbons (8) are placed in both of the two battery boxes (2). The middle section of the silk ribbon (8) is located below the corresponding battery pack, and both ends of the silk ribbon (8) extend above the corresponding battery pack.

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