Fire extinguisher with undervoltage alarm device

By designing the detection mechanism and replacement mechanism on the fire extinguisher, the problems of fire extinguisher pressure detection and alarm are solved, fast and accurate pressure detection and convenient battery replacement are achieved, and working efficiency is improved.

CN223287519UActive Publication Date: 2025-09-02THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Application Number
CN202422230078.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-09-02
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

Existing fire extinguishers require regular inspection of pressure gauge, which wastes human resources and existing patents fail to effectively solve the fire extinguisher pressure detection and alarm problems.

Method used

A fire extinguisher with undervoltage alarm device is designed, including a detection mechanism and a replacement mechanism, which detects pressure changes through components such as spring tubes, transmission rods, sector gears and rotating gears, and transmits alarms and information when the pressure is insufficient, and provides convenient battery replacement methods.

Benefits of technology

It realizes fast and accurate pressure detection and alarm, improves work efficiency, and reduces human resources waste through convenient battery replacement mechanisms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fire extinguisher with an undervoltage alarm device, and particularly relates to the field of fire extinguishers, the fire extinguisher comprises a fire extinguisher body, the outer wall of the fire extinguisher body is fixedly connected with a detection mechanism, the detection mechanism comprises a meter shell, a bourdon tube is installed in the meter shell, one end of the bourdon tube is connected with a transmission rod through a rotating shaft, and the other end of the transmission rod is connected with an undervoltage alarm device. One end of the transmission rod is connected with a sector gear through a rotating shaft, the outer wall of the sector gear is in meshed connection with a rotating gear, and the bottom end of the rotating gear is connected with a control assembly through a rotating shaft; detection and alarm are facilitated through the detection mechanism, the spring tube deforms under the action of pressure during use, the sector gear is driven to move through the transmission rod, the carbon brush is driven to move through the rotating gear, when the pressure is too small and reaches a warning line, the carbon brush is in contact with the control assembly, and then the control assembly is powered on. And then reminding and sounding alarm are carried out, and meanwhile, information is sent to a control room.
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Description

Technical Field

[0001] The utility model relates to the field of fire extinguishers, and more specifically, to a fire extinguisher with an undervoltage alarm device. Background Art

[0002] A fire extinguisher is a portable firefighting tool. It contains chemicals that are used to put out fires. Fire extinguishers are common firefighting equipment and are stored in public places or areas where fires may occur. Different types of fire extinguishers contain different ingredients and are designed to extinguish different fire causes.

[0003] A search revealed an existing patent (publication number: CN203280958U) that discloses a fire extinguisher undervoltage alarm, comprising a magnetic pointer, a bidirectional thyristor (TRIAC), a push button switch, a power supply, and an early warning device. The fire extinguisher undervoltage alarm is mounted on a force gauge for the fire extinguisher undervoltage alarm. The magnetic pointer coincides with the pointer of the force gauge, and rotation of the force gauge pointer drives the magnetic pointer. The power supply is connected to the center of the magnetic pointer and the T2 pole of the bidirectional thyristor. The negative pole of the power supply is connected to the negative pole of the early warning device. The positive pole of the early warning device is connected to one end of the push button switch, and the other end of the push button switch is connected to the T1 pole of the bidirectional thyristor. The G pole of the bidirectional thyristor is connected to the contact of the magnetic pointer when the magnetic pointer rotates. The present utility model designs a fire extinguisher undervoltage alarm that is mounted on the force gauge for the fire extinguisher undervoltage alarm. If the pressure inside the fire extinguisher is abnormal, an early warning is immediately issued, allowing people to replace the fire extinguisher in time, thereby preventing the fire extinguisher from being unusable in the event of a fire. The inventor discovered the following problems in the prior art during the process of implementing the present invention:

[0004] Existing fire extinguishers are equipped with a pressure detection device to detect the pressure inside the fire extinguisher when in use, so as to avoid the fire extinguisher being unable to be used due to insufficient pressure. Existing fire extinguishers require regular inspection of the pressure gauge, which wastes human resources. Therefore, a pressure detection mechanism is needed to facilitate the inspection and alarm of the fire extinguisher pressure. At the same time, the above-cited patent documents do not propose relevant solutions to solve the pressure detection and alarm problems of fire extinguishers.

[0005] Therefore, in response to the above problems, a fire extinguisher with an undervoltage alarm device is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fire extinguisher with an undervoltage alarm device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a fire extinguisher with an undervoltage alarm device, comprising a fire extinguisher body, a detection mechanism fixedly connected to the outer wall of the fire extinguisher body, the detection mechanism comprising a case, a spring tube installed inside the case, one end of the spring tube connected to a transmission rod via a rotating shaft, one end of the transmission rod connected to a sector gear via a rotating shaft, the outer wall of the sector gear meshingly connected to a rotating gear;

[0008] The bottom end of the rotating gear is connected to a control component via a rotating shaft, a pointer is fixedly connected to the outer wall of the rotating gear, a carbon brush is fixedly connected to the bottom end of the pointer, and the watch case is fixedly mounted on the outer wall of the fire extinguisher body.

[0009] Preferably, the upper end of the fire extinguisher body is fixedly connected to a pressure rod, the outer wall of the pressure rod is movably connected to a safety pin, the outer wall of the fire extinguisher body is fixedly connected to a fixing frame, the outer wall of the fire extinguisher body is fixedly connected to a nozzle, and a replacement mechanism is installed on the upper end of the case.

[0010] Preferably, the control assembly includes an instrument panel, and the bottom end of the instrument panel is fixedly connected to a battery box.

[0011] Preferably, an alarm light is fixedly connected to the top of the instrument panel, and a speaker is fixedly connected to the top of the instrument panel.

[0012] Preferably, a power-on disk is fixedly connected to the top of the instrument panel, the power-on disk and the carbon brush are movably connected, and an information transmission block is fixedly connected to the bottom of the instrument panel.

[0013] Preferably, the replacement mechanism includes a fixing block, and a buckle groove is provided on the upper surface of the fixing block.

[0014] Preferably, the bottom end of the fixing block is fixedly connected to a fixing plate, and the outer wall of the fixing plate is fixedly connected to a pressing plate.

[0015] Preferably, a battery slot is provided on the top of the fixing plate, a groove is provided on the top of the fixing plate, and the groove is inclined.

[0016] Technical effects and advantages of this utility model:

[0017] 1. Compared with the existing technology, this fire extinguisher with an under-pressure alarm device facilitates detection and alarm through a detection mechanism. When in use, the spring tube will deform under the action of pressure, and then the sector gear will be driven to move through the transmission rod, and then the carbon brush will be driven to move by rotating the gear. When the pressure is too low and reaches the warning line, the carbon brush will contact the control component, and then the control component will be energized, and then a reminder and sound alarm will be issued. At the same time, information will also be sent to the control room, so that the corresponding fire extinguisher body can be found quickly and accurately, effectively improving work efficiency.

[0018] 2. Compared with the existing technology, this fire extinguisher with an undervoltage alarm device can quickly replace the battery through the replacement mechanism. When in use, the fixing block can be easily pulled outward through the buckle groove, and then the fixing plate can be pulled out as a whole, and then the battery can be replaced. The button battery can be easily removed through the groove, and the button battery will be pressed during installation, which can effectively prevent the button battery from falling during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the detection mechanism structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the control component structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the replacement mechanism structure of the utility model.

[0023] The accompanying drawings are marked as follows: 1. fire extinguisher body; 2. detection mechanism; 3. pressure rod; 4. safety pin; 5. nozzle; 6. fixing bracket; 7. replacement mechanism; 201. case; 202. spring tube; 203. transmission rod; 204. sector gear; 205. rotating gear; 206. pointer; 207. carbon brush; 208. control assembly; 2081. instrument panel; 2082. battery box; 2083. alarm light; 2084. speaker; 2085. power disk; 2086. information transmission block; 701. fixing block; 702. buckle groove; 703. fixing plate; 704. battery slot; 705. groove; 706. pressure plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] As attached Figure 1 and Figure 2A fire extinguisher with an undervoltage alarm device is shown, comprising a fire extinguisher body 1, a detection mechanism 2 fixedly connected to the outer wall of the fire extinguisher body 1, the detection mechanism 2 comprising a housing 201, a spring tube 202 mounted within the housing 201, one end of the spring tube 202 being connected to a transmission rod 203 via a rotating shaft, one end of the transmission rod 203 being connected to a sector gear 204 via a rotating shaft, the outer wall of the sector gear 204 being meshedly connected to a rotating gear 205;

[0027] The bottom end of the rotating gear 205 is connected to the control component 208 via a rotating shaft, the outer wall of the rotating gear 205 is fixedly connected to the pointer 206, the bottom end of the pointer 206 is fixedly connected to the carbon brush 207, and the housing 201 is fixedly installed on the outer wall of the fire extinguisher body 1.

[0028] Among them: when in use, the spring tube 202 will be deformed under the action of pressure, and then the sector gear 204 will be driven to move through the transmission rod 203, and then the carbon brush 207 will be driven to move by the rotating gear 205. When the pressure is too low and reaches the warning line, the carbon brush 207 will contact the control component 208, and then the control component 208 will be energized, and then a reminder and sound alarm will be issued. At the same time, information will also be sent to the control room, so that the corresponding fire extinguisher body 1 can be found quickly and accurately, effectively improving work efficiency.

[0029] Example 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, the upper end of the fire extinguisher body 1 is fixedly connected to a pressure rod 3, the outer wall of the pressure rod 3 is movably connected to a safety pin 4, the outer wall of the fire extinguisher body 1 is fixedly connected to a fixing frame 6, the outer wall of the fire extinguisher body 1 is fixedly connected to a nozzle 5, and a replacement mechanism 7 is installed at the upper end of the case 201; further, when the fire extinguisher body 1 needs to be used, the nozzle 5 is removed from the fixing frame 6, and then the safety pin 4 is pulled out, and then the pressure rod 3 is pressed to use it.

[0032] As a preferred embodiment, the control assembly 208 includes a dashboard 2081 , and a battery box 2082 is fixedly connected to the bottom end of the dashboard 2081 ; further, batteries can be placed in the battery box 2082 for power supply.

[0033] As a preferred embodiment, an alarm light 2083 is fixedly connected to the top of the instrument panel 2081, and a speaker 2084 is fixedly connected to the top of the instrument panel 2081; further, when in use, the alarm light 2083 can light up to remind, and the speaker 2084 will make a beeping sound to remind at the same time.

[0034] As a preferred embodiment, a power-on disk 2085 is fixedly connected to the top of the instrument panel 2081, and the power-on disk 2085 and the carbon brush 207 are movably connected. An information transmission block 2086 is fixedly connected to the bottom of the instrument panel 2081; further, after the control component 208 and the carbon brush 207 come into contact, the instrument panel 2081 will be energized, and then the information transmission block 2086 will send the pressure information to the monitoring room for reminder.

[0035] As a preferred embodiment, a power disk 2085 is fixedly connected to the top of the instrument panel 2081, and the power disk 2085 is movably connected to the carbon brush 207. An information transmission block 2086 is fixedly connected to the bottom of the instrument panel 2081; further, the fixed block 701 can be easily pulled out through the buckle slot 702.

[0036] As a preferred embodiment, the bottom end of the fixing block 701 is fixedly connected to a fixing plate 703 , and the outer wall of the fixing plate 703 is fixedly connected to a pressing plate 706 ; further, the pressing plate 706 can fix the button battery.

[0037] As a preferred embodiment, a battery slot 704 is provided on the top of the fixing plate 703, and a groove 705 is provided on the top of the fixing plate 703, and the groove 705 is designed to be inclined; further, the button battery can be quickly installed in and removed from the battery slot 704 through the groove 705.

[0038] The working process of the present invention is as follows: when the fire extinguisher is not in use, the spring tube 202 detects the pressure in the fire extinguisher body 1. When the pressure changes, the spring tube 202 will change, and then the sector gear 204 will be driven to move through the transmission rod 203, and then the rotating gear 205 will be driven to rotate. When the rotating gear 205 rotates, the pointer 206 will be driven to rotate synchronously. When the pressure drops to the warning line, the carbon brush 207 will contact the power disk 2085, and then the circuit inside the instrument panel 2081 will be energized. At this time, the information transmission block 2086 will send the pressure information to the monitoring room for reminder. At the same time, the alarm light 2083 will light up to remind, and the speaker 2083 will light up to remind. 084 will also make a beeping sound to remind you, and when the button battery needs to be replaced, you can pull up the fixing block 701 through the buckle slot 702, and then pull out the fixing plate 703 from the battery box 2082, and then easily take out the button battery from the battery slot 704 through the groove 705. During installation, the pressure plate 706 will fix the button battery, and then insert the fixing plate 703 into the battery box 2082 for use. When the fire extinguisher body 1 needs to be used, remove the nozzle 5 from the fixing bracket 6, then pull out the safety pin 4, and then press the pressure rod 3 to use it. The above is the working principle of a fire extinguisher with an undervoltage alarm device.

[0039] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fire extinguisher with an undervoltage alarm device, comprising a fire extinguisher body (1), characterized in that: The outer wall of the fire extinguisher body (1) is fixedly connected to a detection mechanism (2), the detection mechanism (2) comprises a case (201), a spring tube (202) is installed inside the case (201), one end of the spring tube (202) is connected to a transmission rod (203) via a rotating shaft, one end of the transmission rod (203) is connected to a sector gear (204) via a rotating shaft, and the outer wall of the sector gear (204) is meshedly connected to a rotating gear (205); The bottom end of the rotating gear (205) is connected to a control assembly (208) via a rotating shaft, the outer wall of the rotating gear (205) is fixedly connected to a pointer (206), the bottom end of the pointer (206) is fixedly connected to a carbon brush (207), and the housing (201) is fixedly mounted on the outer wall of the fire extinguisher body (1).

2. A fire extinguisher with an undervoltage alarm device according to claim 1, characterized in that: The upper end of the fire extinguisher body (1) is fixedly connected to a pressure rod (3), the outer wall of the pressure rod (3) is movably connected to a safety pin (4), the outer wall of the fire extinguisher body (1) is fixedly connected to a fixing frame (6), the outer wall of the fire extinguisher body (1) is fixedly connected to a nozzle (5), and the upper end of the case (201) is installed with a replacement mechanism (7).

3. A fire extinguisher with an undervoltage alarm device according to claim 1, characterized in that: The control assembly (208) includes a dashboard (2081), and a battery box (2082) is fixedly connected to the bottom end of the dashboard (2081).

4. A fire extinguisher with an undervoltage alarm device according to claim 3, characterized in that: An alarm light (2083) is fixedly connected to the upper surface of the instrument panel (2081), and a speaker (2084) is fixedly connected to the upper surface of the instrument panel (2081).

5. A fire extinguisher with an undervoltage alarm device according to claim 4, characterized in that: A power supply disk (2085) is fixedly connected to the top of the instrument panel (2081), and the power supply disk (2085) is movably connected to the carbon brush (207). An information transmission block (2086) is fixedly connected to the bottom of the instrument panel (2081).

6. A fire extinguisher with an undervoltage alarm device according to claim 2, characterized in that: The replacement mechanism (7) comprises a fixing block (701), and a buckle groove (702) is provided on the upper surface of the fixing block (701).

7. A fire extinguisher with an undervoltage alarm device according to claim 6, characterized in that: The bottom end of the fixed block (701) is fixedly connected to a fixed plate (703), and the outer wall of the fixed plate (703) is fixedly connected to a pressing plate (706).

8. A fire extinguisher with an undervoltage alarm device according to claim 7, characterized in that: A battery slot (704) is provided on the fixing plate (703), and a groove (705) is provided on the fixing plate (703), wherein the groove (705) is designed to be inclined.

Citation Information

Patent Citations

  • Pressure shortage alarm for fire extinguisher

    CN203280958U