Smoke fire-fighting alarm with high sensitivity

Abstract

The utility model relates to the technical field of fire-fighting equipment, and discloses a high-sensitivity smoke fire-fighting alarm which comprises a shell, a central gear is rotatably connected in the shell, a first rack plate is slidably connected in the shell, a bottom plate is fixedly connected to the bottom of the first rack plate, and a second rack plate is fixedly connected to the bottom of the bottom plate. A first limiting rod is fixedly connected into the shell, a reset assembly is fixedly connected into the first rack plate, two second limiting rods are fixedly connected into the shell, second rack plates are slidably connected to the left side and the right side of the interior of the shell correspondingly, and side plates are fixedly connected to the sides, away from each other, of the two second rack plates correspondingly. A second spring is arranged in the second rack plate, and a smoke alarm is arranged between the bottom plate and the two side plates. According to the device, the center gear meshed with the rack plate I fixed on the bottom plate can be driven to rotate through the gravity of an object, and the problem that part of devices are not convenient enough in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a high-sensitivity smoke fire alarm. Background Art

[0002] A smoke fire alarm is a device used to detect fire sources. It mainly determines whether a fire has occurred by monitoring smoke particles in the air. When the smoke concentration exceeds the set threshold, the smoke fire alarm will sound an alarm to remind people to take action.

[0003] After searching: Chinese patent publication number: CN219180018U, it relates to the technical field of smoke alarms, and discloses a fire smoke alarm, which aims to solve the problem that a large amount of smoke particles will be attached to the mesh surface of the smoke alarm after long-term use. To this end, the present application provides a fire smoke alarm, which includes: a dust cover shell, the dust cover shell has a plurality of mesh surfaces on the circumference; a collar, the collar is rotatably arranged inside the dust cover shell; a brush, the brush is arranged on the outer wall of the collar, the brush is in dynamic contact with the mesh surface, and the brush acts on the mesh surface when rotating. By rotatably arranging a collar inside the dust cover shell of the fire smoke alarm, and fixing a brush on the outer wall of the collar, the brush is in dynamic contact with the mesh surface on the dust cover shell when the collar rotates, so that after the smoke alarm is used for a long time, the mesh surface can be cleaned in time by rotating the collar and using the brush, thereby improving the monitoring sensitivity of the smoke alarm.

[0004] The above patent embodiment records that "a plurality of mesh surfaces 12 are circumferentially arranged on the outer side surface of the dust cover shell 1, and external dust enters the interior of the smoke alarm through the mesh surface 12. A ring 2 is rotatably arranged inside the dust cover shell 1, and a brush 3 is arranged on the outer wall of the ring 2. The brush 3 contacts the inner wall of the dust cover shell 1 and is in contact with the mesh surface 12 at the same time. Therefore, when the ring 2 rotates, the brush 3 can act on the mesh surface 12 to clean it", which can make the cleaning power of the device higher, but the installation position during use is limited, and it is not convenient during use. Therefore, in view of the above-mentioned deficiencies, a new type of high-sensitivity smoke fire alarm is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-sensitivity smoke fire alarm, aiming to improve the problem that some devices are not convenient enough during use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A highly sensitive smoke fire alarm comprises a shell, wherein a central gear is rotatably connected inside the shell, a rack plate 1 is slidably connected inside the shell, a bottom plate is fixedly connected to the bottom of the rack plate 1, a limit rod 1 is fixedly connected inside the shell, a reset assembly is fixedly connected inside the rack plate 1, two limit rods 2 are fixedly connected inside the shell, rack plates 2 are slidably connected to the left and right sides of the shell, side plates are fixedly connected to the far sides of the two rack plates 2, springs 2 are arranged inside the rack plate 2, and a smoke alarm is arranged between the bottom plate and the two side plates.

[0008] Furthermore, the reset assembly includes an anti-deflection rod, the top of which is fixedly connected to the inner wall of the rack plate 1, and the outer part of the anti-deflection rod is provided with a spring 1.

[0009] Furthermore, one end of the spring 1 is fixedly connected to the inside of the rack plate 1, and the other end of the spring 1 is fixedly connected to the outside of the limiting rod 1.

[0010] Furthermore, one end of the second spring is fixedly connected to the outside of the second limiting rod, and the other end of the second spring is fixedly connected to the inside of the second rack plate.

[0011] Furthermore, the exterior of the central gear is meshed with the exterior of the rack plate 1, and the exterior of the central gear is meshed with the exteriors of the two rack plates 2.

[0012] Furthermore, a turbo suction fan is fixedly connected to the front side of the exterior of the smoke alarm, a connecting line is fixedly connected to the exterior of the turbo suction fan, and a temperature sensor is fixedly connected to the front side of the exterior of the smoke alarm.

[0013] Furthermore, the outer front side of the temperature sensor is fixedly connected to the outer side of the connecting line.

[0014] Furthermore, the exterior of the housing is fixedly connected to two fixing plates, and the interior of the fixing plates is threadedly connected to two bolts.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, with the coordinated use of structures such as the rack plate 1, the bottom plate, the limit rod 1, and the anti-deflection rod, the device can drive the center gear meshing with the rack plate 1 fixed on the bottom plate to rotate through the gravity of the object during use, thereby solving the problem of inconvenience in the use of some devices.

[0017] 2. In the utility model, with the coordinated use of the smoke alarm, the turbo suction fan, the connecting wire, the temperature sensor and other structures, the device can sense the external temperature through the temperature sensor during use, so that the turbo suction fan can concentrate the nearby smoke, thereby more sensitively detecting the scattered smoke, solving the problem of insufficient sensitivity of some devices in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a highly sensitive smoke fire alarm proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the shell structure of a high-sensitivity smoke fire alarm proposed by the utility model;

[0020] Figure 3 The utility model is a schematic diagram of the central gear structure of a high-sensitivity smoke fire alarm.

[0021] Legend:

[0022] 1. Casing; 2. Center gear; 3. Rack plate 1; 4. Bottom plate; 5. Limit rod 1; 6. Anti-deflection rod; 7. Spring 1; 8. Limit rod 2; 9. Rack plate 2; 10. Side plate; 11. Spring 2; 12. Fixing plate; 13. Bolts; 14. Smoke alarm; 15. Turbine suction fan; 16. Connecting wire; 17. Temperature sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3The utility model provides an embodiment: a highly sensitive smoke fire alarm, the main body of which is composed of a shell 1, and a central gear 2 is rotatably connected inside the shell 1. A rack plate 3 is slidably connected inside the shell 1 and meshes with the central gear 2. A bottom plate 4 is fixed to the bottom of the rack plate 3, and a limit rod 5 is fixedly connected inside the shell 1. A reset assembly is fixedly connected inside the rack plate 3, including an anti-deflection rod 6 and a spring 7. The top of the anti-deflection rod 6 is fixed to the inner wall of the rack plate 3, and a spring 7 is sleeved on the outside, one end of which is fixed inside the rack plate 3, and the other end is fixed to the outside of the limit rod 5. Two limit rods 28 are also fixed inside the shell 1, and rack plates 29 are slidably connected on the left and right sides to mesh with the central gear 2. Side plates 10 are fixed to the far ends of the two rack plates 29, and a spring 211 is installed inside the rack plate 29, one end of which is fixed to the outside of the limit rod 28, and the other end is fixed to the inside of the rack plate 29.

[0025] like Figure 1 As shown: a smoke alarm 14 is arranged between the bottom plate 4 and the side plate 10, and a turbine suction fan 15 is fixedly connected to the front of the outside thereof, and a connecting line 16 is fixedly connected to the outside thereof. A temperature sensor 17 is also fixedly connected to the front of the outside of the smoke alarm 14, and the front of the outside thereof is fixed to the outside side of the connecting line 16. Two fixing plates 12 are fixedly connected to the outside of the housing 1, and two bolts 13 are threadedly connected to the inside thereof.

[0026] Compared with some devices in the prior art, the above content solves the problem that some devices are not convenient enough in use and lack sensitivity in use.

[0027] Working principle: First, place the smoke alarm 14 on the top of the bottom plate 4. The gravity of the smoke alarm 14 makes the bottom plate 4 move downward, thereby driving the rack plate 3 to move downward. Since the external meshing of the rack plate 3 is connected with the central gear 2, the rack plate 3 drives the central gear 2 to rotate. Since the external meshing of the central gear 2 is connected with two rack plates 29 at different positions, the two rack plates 29 move toward one side, so that the bottom plate 4 and the two side plates 10 can stably clamp the smoke alarm 14 therebetween. When the user takes out the smoke alarm 14, the spring 17 and the two springs 211 can provide the rack plate 3 and the two rack plates 29 with the power to reset. When the temperature sensor 17 senses the temperature change of the outside world, it can send a start signal to the turbo fan 15 through the connecting line 16, so that the turbo fan 15 can concentrate the scattered smoke around onto the smoke alarm 14.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly sensitive smoke fire alarm, comprising a housing (1), characterized in that: The shell (1) is rotatably connected to a central gear (2), the shell (1) is slidably connected to a rack plate (3), the bottom of the rack plate (3) is fixedly connected to a bottom plate (4), the shell (1) is fixedly connected to a limit rod (5), the rack plate (3) is fixedly connected to a reset assembly, the shell (1) is fixedly connected to two limit rods (8), the shell (1) is slidably connected to rack plates (9) on both left and right sides, the two rack plates (9) are fixedly connected to side plates (10) on opposite sides, the rack plates (9) are provided with springs (11) inside, and a smoke alarm (14) is provided between the bottom plate (4) and the two side plates (10).

2. A highly sensitive smoke fire alarm according to claim 1, characterized in that: The reset assembly comprises an anti-deflection rod (6), the top of which is fixedly connected to the inner wall of the rack plate (3), and the outer portion of the anti-deflection rod (6) is sleeved with a spring (7).

3. A highly sensitive smoke fire alarm according to claim 2, characterized in that: One end of the spring 1 (7) is fixedly connected to the inside of the rack plate 1 (3), and the other end of the spring 1 (7) is fixedly connected to the outside of the limiting rod 1 (5).

4. A highly sensitive smoke fire alarm according to claim 1, characterized in that: One end of the second spring (11) is fixedly connected to the outside of the second limiting rod (8), and the other end of the second spring (11) is fixedly connected to the inside of the second rack plate (9).

5. A highly sensitive smoke fire alarm according to claim 1, characterized in that: The outside of the central gear (2) is meshed with the outside of the rack plate 1 (3), and the outside of the central gear (2) is meshed with the outside of the two rack plates 2 (9).

6. A highly sensitive smoke fire alarm according to claim 1, characterized in that: The front side of the exterior of the smoke alarm (14) is fixedly connected to a turbine suction fan (15), the exterior of the turbine suction fan (15) is fixedly connected to a connecting line (16), and the front side of the exterior of the smoke alarm (14) is fixedly connected to a temperature sensor (17).

7. A highly sensitive smoke fire alarm according to claim 6, characterized in that: The external front side of the temperature sensor (17) is fixedly connected to the external side of the connecting line (16).

8. A highly sensitive smoke fire alarm according to claim 6, characterized in that: The exterior of the housing (1) is fixedly connected to two fixing plates (12), and the interior of the fixing plates (12) is threadedly connected to two bolts (13).

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