Fire alarm for kitchen

Abstract

The utility model relates to the technical field of kitchen fire-fighting alarms, and discloses a kitchen fire-fighting alarm, which comprises a vertical pipe barrel, the bottom of the vertical pipe barrel is provided with a plug-in groove, and a plug-in pipe is movably clamped in the plug-in groove. According to the fire-fighting alarm for the kitchen, air is heated through heat generated during combustion, upward lifting force of hot air is used as a control mode for controlling the alarm, the structure is simple, compared with a control mode using a sensor, the follow-up maintenance and overhaul difficulty is reduced, hot air flow upwards flows into the vertical pipe barrel, and the safety of the alarm is improved. The whole device does not need to use electric power, so that the application range of the device is widened, the use safety is improved and the use life is prolonged due to the non-electric design, the device can be used outdoors, and the device is suitable for popularization and application. And rainwater can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen fire alarms, in particular to a fire alarm for kitchen use. Background Technique

[0002] When cooking in the kitchen, sometimes it is necessary to simmer ingredients for a long time. During the long-term heating and simmering process, it is easy to forget and cause the water cup in the pot to dry up, and in serious cases, even cause a fire. If the fire cannot be detected in time, the fire will spread. An alarm is an electronic product that prevents or pre-empts the consequences of an event and alerts or warns us to take certain actions in the form of sound, light, air pressure, etc. However, when a general alarm is in use, it needs to be powered on, which affects the applicable range of the alarm. And usually it also needs to cooperate with some sensors to monitor the environment, and then cooperate with an electronic control sound-emitting device to emit a loud sound for alarm, resulting in a relatively complex structure, and it is also difficult to maintain and repair when a failure occurs, bringing inconvenience to use. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a fire alarm for kitchen use, which solves the problems of using electricity as power and the inconvenience brought by the complex structure and difficult maintenance and repair.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solutions: A fire alarm for kitchen use includes a vertical pipe cylinder. The bottom of the vertical pipe cylinder is provided with a plug-in slot. An insertion pipe is movably clamped inside the plug-in slot. The bottom end of the insertion pipe extends below the vertical pipe cylinder. A bottom cover frame is installed at the bottom of the vertical pipe cylinder and located on the outer side. A notch is provided on the surface of the bottom cover frame. An upper blocking cloth is installed at the bottom of the bottom cover frame. An external oil tank is installed at the bottom of the bottom cover frame by means of threads. A side air release port is provided on the outer wall of the bottom cover frame and above the external oil tank. The bottom end of the insertion pipe is installed with an internal oil tank by means of threads. A lower blocking cloth is installed on the outer wall of the insertion pipe and above the internal oil tank. The outer side of the lower blocking cloth is installed with the inner wall of the bottom cover frame and above the side air release port. A side moving opening is provided on the outer wall of the vertical pipe cylinder. A lift blocking disc is sleeved on the outside of the vertical pipe cylinder. The inner side of the lift blocking disc extends into the side moving opening and is installed on the outer wall of the top end of the insertion pipe. An installation support rod is installed on the outer wall of the vertical pipe cylinder. A mounting disc is installed at one end of the installation support rod away from the vertical pipe cylinder. A top frame is installed at the top of the vertical pipe cylinder. A diversion cover is installed at the top end of the top frame. A whistle is installed at the top of the diversion cover.

[0007] Preferably, the lift baffle is made of a plastic thin plate, and the outer end of the lift baffle is bent downward.

[0008] Preferably, the lower blocking cloth and the upper blocking cloth are both provided with holes on their surfaces, and the holes on the surfaces of the lower blocking cloth and the upper blocking cloth are arranged in a staggered manner.

[0009] Preferably, the inner end of the outer oil tank faces inwardly inclined.

[0010] Preferably, the side air vent is inclined, and the inner end of the side air vent is lower than the outer end.

[0011] Preferably, the lower blocking cloth and the upper blocking cloth are installed and fixed by bonding with magic tape.

[0012] Compared with the prior art, the present utility model provides a fire alarm for kitchen, which has the following

[0013] Beneficial effects:

[0014] 1. For the fire alarm for kitchen, the air is heated by the heat generated during combustion, and the upward lift of the hot air is used as the control method for controlling the alarm. The structure is simple. Compared with the control method using sensors, the difficulty of subsequent maintenance and repair is reduced.

[0015] 2. For the fire alarm for kitchen, the hot air flow flows upward into the vertical pipe cylinder, and then a chimney effect is generated inside the vertical pipe cylinder, accelerating the air flow velocity. The high-speed air flow enters into the whistle, so that the whistle emits a sound for alarm. The whole device does not need to use electricity, thereby improving the applicable range of the device. The non-electric design also improves the safety and service life of use. It can be used outdoors and is not afraid of rain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0018] Figure 3 is the present utility model Figure 2 enlarged view of the structure at A in.

[0019] Wherein: 1, vertical pipe cylinder; 2, insertion pipe; 21, lift baffle; 3, inner oil tank; 4, lower blocking cloth; 5, bottom cover frame; 6, notch; 7, upper blocking cloth; 8, side air vent; 9, outer oil tank; 10, installation support rod; 11, installation disc; 12, top frame; 13, flow guiding cover; 14, whistle; 15, insertion slot; 16, side moving opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a fire alarm for kitchen use, including a vertical pipe cylinder 1. An insertion slot 15 is opened at the bottom of the vertical pipe cylinder 1. An insertion pipe 2 is movably clamped inside the insertion slot 15. The bottom end of the insertion pipe 2 extends below the vertical pipe cylinder 1. A bottom cover frame 5 is installed at the bottom of the vertical pipe cylinder 1 and at a position close to the outside. A notch 6 is opened on the surface of the bottom cover frame 5. An upper blocking cloth 7 is installed at the bottom of the bottom cover frame 5. An external oil tank 9 is installed at the bottom of the bottom cover frame 5 by means of threads. A side air release port 8 is opened on the outer wall of the bottom cover frame 5 and at a position above the external oil tank 9. The bottom end of the insertion pipe 2 is installed with an internal oil tank 3 by means of threads. A lower blocking cloth 4 is installed on the outer wall of the insertion pipe 2 and at a position above the internal oil tank 3. The outer side of the lower blocking cloth 4 is installed with the inner wall of the bottom cover frame 5 and at a position above the side air release port 8. A side moving opening 16 is opened on the outer wall of the vertical pipe cylinder 1. A lift blocking disk 21 is sleeved on the outside of the vertical pipe cylinder 1. The inner side of the lift blocking disk 21 extends into the side moving opening 16 and is installed on the outer wall of the top end of the insertion pipe 2. The diameter of the lift blocking disk 21 is larger than the diameter of the bottom cover frame 5, so that the hot air diffused out through the bottom cover frame 5 and the hot air flowing along the outside of the bottom cover frame 5 itself exert an upward thrust on the lift blocking disk 21, serving as the power to push the lift blocking disk 21 to move upward. An installation support rod 10 is installed on the outer wall of the vertical pipe cylinder 1. A mounting disk 11 is installed at a section of the installation support rod 10 away from the vertical pipe cylinder 1. A top frame 12 is installed at the top of the vertical pipe cylinder 1. A diversion cover 13 is installed at the top end of the top frame 12. A whistle 14 is installed at the top of the diversion cover 13.

[0022] Furthermore, the lift blocking disk 21 is made of a plastic thin plate. The outer end of the lift blocking disk 21 is bent downward. By blocking the upward flow of air through the lift blocking disk 21, the lift of the upward flowing gas drives the lift blocking disk 21 to move upward.

[0023] Furthermore, holes are provided on the surfaces of the lower blocking cloth 4 and the upper blocking cloth 7, and the holes on the surfaces of the lower blocking cloth 4 and the upper blocking cloth 7 are arranged in a staggered manner. When the inner end of the lower blocking cloth 4 driven by the insertion pipe 2 extends to the lower side position, the gas can flow through the holes on the surfaces of the lower blocking cloth 4 and the upper blocking cloth 7. When the inner end of the lower blocking cloth 4 driven by the insertion pipe 2 moves upward to fit with the bottom of the upper blocking cloth 7, the holes on the surfaces of the lower blocking cloth 4 and the upper blocking cloth 7 are arranged in a staggered manner. Thus, a hood for blocking the air flow is formed through the cooperation of the lower blocking cloth 4 and the upper blocking cloth 7, so that the air flow flows from the lower side of the lower blocking cloth 4 and the upper blocking cloth 7 to the middle, and finally converges into the interior of the vertical pipe cylinder 1 and flows upward.

[0024] Furthermore, the inner end of the outer oil tank 9 is inclined towards the inside, so that the oil stains falling on the surface of the inner end of the outer oil tank 9 will flow along the slope towards the inside and be stored in the interior of the outer oil tank 9.

[0025] Furthermore, the side air release port 8 is inclinedly provided, and the inner end of the side air release port 8 is lower than the outer end. When the gas flows through the side air release port 8, the oil stains adhering to the inner wall of the side air release port 8 will flow along the inner surface of the side air release port 8 towards the inside and finally drip downward into the interior of the outer oil tank 9 for storage.

[0026] Furthermore, the lower blocking cloth 4 and the upper blocking cloth 7 are installed and fixed by bonding with magic tape, which is convenient for disassembling and cleaning the lower blocking cloth 4 and the upper blocking cloth 7.

[0027] In use, the mounting disc 11 is installed at the wall position above the kitchen stove through screws, so that the bottom cover frame 5 is located above the stove. When cooking normally, the heat above the stove is less, and the generated oil fume gas flows upward and contacts the lower blocking cloth 4. The oil fume is filtered and adsorbed by the lower blocking cloth 4, and the oil stains flow downward along the lower blocking cloth 4 and finally flow into the inner oil receiving tank 3 for storage. The flue gas filtered by the lower blocking cloth 4 continues to flow upward and contacts the upper blocking cloth 7. The upper blocking cloth 7 adsorbs the oil fume again. The oil stains flow outward along the upper blocking cloth 7 and finally flow downward along the inside of the bottom cover frame 5 and enter the outer oil receiving tank 9 for storage. At the same time, the oil fume will also diffuse and flow outward through the side air release port 8. The oil stains adhering to the inner wall of the side air release port 8 will flow inward along the inner wall of the side air release port 8 and finally also flow into the outer oil receiving tank 9 for storage. When the stove catches fire, a large flame is generated. The flame will generate high temperature and cause the gas above the stove to be heated and flow upward rapidly. The upward flowing gas generates an upward thrust on the lower blocking cloth 4, and the lower blocking cloth 4 drives the bottom end of the insertion pipe 2 to move upward. At the same time, the upward flowing hot air outside contacts the bottom of the lift baffle 21 and pushes the lift baffle 21 to move upward. The lift baffle 21 drives the top end of the insertion pipe 2 to move upward. When the insertion pipe 2 moves to the uppermost position, the bottom of the lower blocking cloth 4 fits with the bottom of the upper blocking cloth 7. The upward flowing hot gas flows inward along the lower blocking cloth 4 and the lower part of the upper blocking cloth 7, so that the hot air flow gathers inside the vertical pipe cylinder 1. The hot air flow flows upward through the inside of the vertical pipe cylinder 1. The chimney effect will be generated during the flowing process of the hot air flow to accelerate the flow speed of the gas inside the vertical pipe cylinder 1. After the air flow speed is accelerated, it is discharged upward from the top of the vertical pipe cylinder 1. The upward discharged gas enters the whistle 14 along the lower part of the guide cover 13 and blows the sphere inside the whistle 14 to shake and collide inside the whistle 14 to generate sound and issue an alarm, thereby preventing the fire from spreading.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire alarm for kitchen use, comprising a vertical pipe cylinder (1), characterized in that: A socket groove (15) is formed at the bottom of the vertical pipe cylinder (1). An inserting pipe (2) is movably clamped inside the socket groove (15). The bottom end of the inserting pipe (2) extends below the vertical pipe cylinder (1). A bottom cover frame (5) is installed at the bottom of the vertical pipe cylinder (1) and at a position near the outer side. A notch (6) is formed on the surface of the bottom cover frame (5). An upper blocking cloth (7) is installed at the bottom of the bottom cover frame (5). An external oil groove (9) is installed at the bottom of the bottom cover frame (5) through threads. A side air leakage port (8) is formed on the outer wall of the bottom cover frame (5) and at a position above the external oil groove (9). The bottom end of the inserting pipe (2) is installed with an internal oil groove (3) through threads. A lower blocking cloth (4) is installed on the outer wall of the inserting pipe (2) and at a position above the internal oil groove (3). The outer side of the lower blocking cloth (4) is installed with the inner wall of the bottom cover frame (5) and at a position above the side air leakage port (8). A side moving opening (16) is formed on the outer wall of the vertical pipe cylinder (1). A lift baffle (21) is sleeved outside the vertical pipe cylinder (1). The inner side of the lift baffle (21) extends into the side moving opening (16) and is installed with the outer wall of the top end of the inserting pipe (2). An installation support rod (10) is installed on the outer wall of the vertical pipe cylinder (1). A mounting plate (11) is installed at a section of the installation support rod (10) far from the vertical pipe cylinder (1). A top frame (12) is installed at the top of the vertical pipe cylinder (1). A flow guide cover (13) is installed at the top end of the top frame (12). A whistle (14) is installed at the top of the flow guide cover (13).

2. The kitchen fire alarm according to claim 1, characterized in that: The lift baffle (21) is made of a plastic thin plate, and the outer end of the lift baffle (21) is bent downward.

3. A kitchen fire alarm according to claim 1, characterized in that: Holes are formed on the surfaces of both the lower blocking cloth (4) and the upper blocking cloth (7), and the holes on the surfaces of the lower blocking cloth (4) and the upper blocking cloth (7) are arranged in a staggered manner.

4. A kitchen fire alarm according to claim 1, characterized in that: The inner end of the inner side of the external oil groove (9) inclines inward.

5. A fire alarm for kitchen according to claim 1, characterized in that: The side air leakage port (8) is obliquely formed, and the inner end of the side air leakage port (8) is lower than the outer end.

6. The kitchen fire alarm according to claim 1, characterized in that: The lower blocking cloth (4) and the upper blocking cloth (7) are installed and fixed by bonding through magic tape.

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