Smoke sensor shell with function of preventing dust from entering
By setting a filter plate and a motor-driven tapping rod in the smoke sensor housing to clean up dust, the problem of the impact of traditional cleaning methods on component damage and dust is solved, and dust-proof function is achieved, extending service life and detection accuracy.
Patent Information
- Application Number
- CN202422277622.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-18
AI Technical Summary
During the cleaning process, traditional smoke sensors are prone to damage internal components by manually wiping dust, affecting detection performance, and the entry of dust affects sensitivity, resulting in inaccurate detection.
Design a smoke sensor housing with dust-proof function, including a filter plate and a driving assembly, isolate the dust by the filter plate, and use a motor-driven strike rod to clean up the adherent dust to avoid manual wiping damage.
Effectively prevent dust from entering, extend service life, ensure detection performance, improve detection accuracy, prevent fires, and protect personal safety.
Smart Images
Figure CN223155543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smoke sensor housings, and particularly relates to a smoke sensor housing with a function of preventing dust from entering. Background Art
[0002] A smoke sensor is a common safety detection device, mainly used for timely detecting and alarming whether there are fire hazards in the environment. The smoke sensor uses photoelectric or ionization detection methods to judge whether there is smoke by detecting the change of the concentration of soot particles in the environment. When the detected smoke exceeds the set threshold, an alarm signal will be sent out in time. Smoke sensors are widely used in the safety prevention systems of public places such as homes, shopping malls, hospitals, and subways, effectively improving the fire warning and emergency handling capabilities. The installation position of the smoke sensor should be selected in areas with high sensitivity and where smoke is likely to concentrate, such as under the ceiling, etc., and avoid occlusion and interference. A smoke sensor is an important fire safety device, and it is necessary to select the type reasonably according to different occasions and do a good job in daily maintenance to effectively prevent and control the occurrence of fire accidents.
[0003] Affected by the use environment, regular cleaning of the smoke sensor is very important to ensure the long-term normal operation of the device. It is generally recommended to clean it once every 3 - 6 months, and the specific frequency depends on the dust level of the use environment. The traditional cleaning method is usually to first cut off the power supply and remove the sensor cover. Gently wipe the surface of the sensor probe with a soft dry cloth or tissue to remove dust and dirt. Use a soft brush to clean the inside of the sensor, especially the air inlet and optical components. Check whether the sensor lines and connections are intact, and if necessary, blow them with compressed air. Reinstall the sensor cover, turn on the power supply and conduct a function test. After cleaning, it is necessary to ensure that there is no remaining dust and impurities in the sensor, otherwise it will affect the sensitivity and detection performance. Regular cleaning of the smoke sensor is an important measure to ensure its safe and reliable operation, but the internal components of the smoke sensor require extremely high sensitivity, and the method of manually wiping dust is extremely easy to damage the internal components, resulting in affecting the detection performance of the smoke sensor and possibly causing significant losses. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a smoke sensor housing with a function of preventing dust from entering, so as to solve the problems put forward in the above background art.
[0005] To solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A smoke sensor housing with a function of preventing dust from entering, the dust-proof component includes a circular ring, a toothed ring, a filter plate and two groups of springs. The filter plate is arranged inside the circular ring, and the smoke sensor is arranged below the filter plate; the springs are in contact with the filter plate; the toothed ring is rotatably connected to the outside of the circular ring.
[0007] Two sets of driving components, which are symmetrically arranged and fixedly connected to the outside of the ring, and the two sets of driving components are used to drive the two sides of the filter plate to move in opposite directions.
[0008] Adopting the above technical solution, in this solution, by setting the filter plate, the free dust in the air is isolated, so that the dust cannot enter the interior of the device, thus not affecting the sensitivity of the smoke sensor inside the device, extending the service life of the device, and ensuring the detection performance of the device.
[0009] A further improvement of the technical solution of the present utility model lies in: the two sets of driving components include a gear, a push rod, a knocking rod and a limit block, the gear meshes with the toothed ring, and the knocking rod abuts against the filter plate; the push rod is rotatably connected to the gear and is rotatably connected to the knocking rod; the limit block is fixedly connected to the outside of the ring and is slidably connected to the knocking rod.
[0010] Adopting the above technical solution, in this solution, the driving component drives the knocking rod to knock the filter net, and the dust attached to the filter plate can be shaken off, so that the device will not be affected by dust attachment and affect the real-time collection and detection of air, and the detection accuracy is improved.
[0011] A further improvement of the technical solution of the present utility model lies in: the two sets of driving components further include a motor, the motor is fixedly connected to the outside of the ring, and its driving shaft is coaxially and fixedly connected to the gear.
[0012] Adopting the above technical solution, in this solution, the motor drives the driving component, so that the knocking rod knocks the filter plate, and the dust attached to the filter plate is shaken off, avoiding the hidden danger of damaging the internal components of the device due to manual wiping of the dust.
[0013] A further improvement of the technical solution of the present utility model lies in: the dust-proof component further includes two support plates, the support plates are fixedly connected to the outside of the ring and abut against the spring.
[0014] A further improvement of the technical solution of the present utility model lies in: it further includes a base, and the base is threadedly connected to the dust-proof component.
[0015] Adopting the above technical solution, in this solution, four fixing grooves are annularly and arrayedly opened on the base, which is convenient for installing the device in an area with high sensitivity and where smoke is easy to concentrate.
[0016] A further improvement of the technical solution of the present utility model lies in: it further includes an outer cover, and the outer cover is threadedly connected to the base.
[0017] Adopting the above technical solution, in this solution, air inlet holes are opened on the outer cover, which can protect the interior of the device while ensuring air circulation.
[0018] A further improvement of the technical solution of the present utility model lies in: it further includes an alarm, and the alarm is fixedly connected to the outer cover.
[0019] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:
[0020] 1. The present utility model provides a smoke sensor housing with the function of preventing dust from entering. By setting a filter plate, the free dust in the air can be isolated, so that the dust cannot enter the interior of the device, thus not affecting the sensitivity of the internal components of the device, prolonging the service life of the device, and ensuring the detection performance of the device.
[0021] 2. The present utility model provides a smoke sensor housing with the function of preventing dust from entering. By driving the motor in the driving component to drive the knocking rod to knock on the filter net, the dust attached to the filter plate can be shaken off, avoiding the hidden danger of damaging the internal components of the device caused by manually wiping the dust, so that the device will not be affected by the dust attachment and affect the real-time collection and detection of air, improving the detection accuracy, thus preventing fires and protecting personal safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The following further describes the present utility model with reference to the drawings.
[0023] Figure 1 It is a three-dimensional structure diagram of the smoke sensor housing with the function of preventing dust from entering according to Embodiment 1 of the present utility model;
[0024] Figure 2 It is a side view structure diagram of the present utility model;
[0025] Figure 3 For Figure 2 It is a sectional structure diagram of the present utility model along the A-A direction in
[0026] Figure 4 It is a partial three-dimensional structure diagram of the present utility model;
[0027] Figure 5 For Figure 4 It is a partial plane structure diagram of the present utility model in
[0028] Figure 6 It is a partial three-dimensional structure diagram of the present utility model;
[0029] Figure 7 It is a side view structure diagram of the present utility model;
[0030] Figure 8 For Figure 7 It is a sectional structure diagram of the present utility model along the B-B direction in
[0031] Figure 9 This is a partial three-dimensional structural schematic diagram of the present utility model.
[0032] In the figure: 1. Outer cover; 2. Base; 3. Dust-proof component; 31. Ring; 32. Tooth ring; 33. Filter plate; 35. Support plate; 36. Spring; 4. Driving component; 41. Motor; 42. Gear; 43. Push rod; 44. Knocking rod; 45. Limit block; 9. Alarm. Specific implementation mode
[0033] The following further elaborates on the present utility model in conjunction with embodiments:
[0034] Embodiment 1
[0035] As Figures 1-9 shown, the present utility model provides a smoke sensor housing with a function of preventing dust from entering. The dust-proof component 3 includes a ring 31, a tooth ring 32, a filter plate 33, two groups of springs 36 and two support plates 35. The support plates 35 are fixedly connected to the outside of the ring 31 and are in contact with the springs 36. The filter plate 33 is arranged inside the ring 31, and the smoke sensor is arranged below the filter plate 33; the springs 36 are in contact with the filter plate 33; the tooth ring 32 is rotatably connected to the outside of the ring 31. Two groups of driving components 4 are symmetrically arranged and fixedly connected to the outside of the ring 31, and the two groups of driving components 4 are used to drive the two sides of the filter plate 33 to move in opposite directions.
[0036] In this embodiment, two symmetrically arranged windows are opened on the side surface of the ring 31. The filter plate 33 extends outward at the positions of the two windows on both sides of the ring 31. The support plates 35 are arranged at the positions below the windows opened on the outside of the ring 31, and the springs 36 are in contact with each other between the support plates 35 and the extended parts of the filter plate 33.
[0037] In other embodiments, the springs 36 can also be replaced with elastic columns or other elastic components, which are arranged between the filter plate 33 and the support plates 35, and the filter plate 33 can be reset after the position of the filter plate 33 changes.
[0038] Generally, the main difference between dust and smoke lies in the particle size of the particulate matter. Particulate matter with a particle size less than 0.1 micrometers belongs to soot, while particulate matter with a particle size between 0.1 and 10 micrometers belongs to inhalable dust. Since the particle size of dust is much larger than the soot contained in smoke, ventilation holes can be opened on the filter plate 33 to isolate dust from entering while not hindering the passage of smoke.
[0039] In this embodiment, the diameter of the ventilation holes on the filter plate 33 can be set to 0.1 micrometers, so that the filter plate 33 can isolate the free dust in the air, prevent the dust from entering the interior of the device, thereby not affecting the sensitivity of the smoke sensor inside the device, prolonging the service life of the device, and ensuring the detection performance of the device.
[0040] In other embodiments, the size of the ventilation holes of the filter plate 33 can also be changed according to the particle size of the substance to be isolated, so as to meet the use of the device in different environments.
[0041] The two sets of driving components 4 include gears 42, push rods 43, knocking rods 44 and limit blocks 45. The gears 42 are meshed with the toothed ring 32, and the knocking rods 44 are in contact with the filter plate 33; the push rods 43 are rotatably connected to the gears 42 and are rotatably connected to the knocking rods 44; the limit blocks 45 are fixedly connected to the outer side of the circular ring 31 and are slidably connected to the knocking rods 44. The two sets of driving components 4 further include motors 41. The motors 41 are fixedly connected to the outer side of the circular ring 31, and the driving shafts thereof are coaxially and fixedly connected to one of the gears 42.
[0042] Due to the influence of the use environment, the free dust in the air will adhere to the filter plate 33. When there is too much dust, it will affect the air from entering the interior of the device, resulting in the smoke sensor arranged inside the device being unable to collect the smoke in the air in real time, and unable to detect the smoke in time. When the smoke concentration is relatively high or a fire has occurred, it cannot give an alarm, which may cause significant losses. Therefore, it is necessary to regularly clean the dust on the filter plate 33.
[0043] By driving the motor 41, the gear 42 coaxially and fixedly connected to the driving shaft of the motor 41 is driven to rotate. When the gear 42 rotates, the push rod 43 rotatably connected to the outside of the gear 42 will move under the drive of the gear 42. Through the rotational connection between the push rod 43 and the knocking rod 44, and the limit block 45 limiting the knocking rod 44, when the motor 41 drives the gear 42 to rotate, the push rod 43 rotatably connected to the outside of the gear 42 swings left and right or pushes the knocking rod 44 to move up and down. Since the knocking rod 44 is arranged in contact with the filter plate 33, the purpose of driving the motor 41 to knock the filter plate 33 is achieved. By providing springs 36 respectively contacting the filter plate 33 and the support plate 35 at both ends, the filter plate 33 can return to its original position after being knocked by the knocking rod 44 once. At the same time, the gear 42 is meshed with the toothed ring 32. When the motor 41 drives the gear 42 to rotate, the toothed ring 32 rotatably connected to the circular ring 31 is synchronously driven to rotate. Since the gear 42 in the other set of driving components 4 is also meshed with the toothed ring 32, when the motor 41 is driven, the two sets of driving components 4 can be driven to knock the filter plate 33. The two sets of driving components 4 move in the opposite direction, and during the process of the motor 41 driving the gear 42 to rotate one week, the two knocking rods 44 can sequentially knock the filter plate 33. Through high-frequency knocking, it is easier to clean the dust adhering to the filter plate 33.
[0044] In this embodiment, the outer ring of the filter plate 33 can be made of steel or alloy, and the ventilation position adopts a polytetrafluoroethylene filter membrane to ensure that it will not deform under the long-term knocking of the knocking rod 44 and will not affect the entry of air due to dust adhesion to the position where the smoke sensor is located, so as to achieve real-time monitoring of the air in the area where the device is installed, so as to prevent fires or give an alarm in time when a fire occurs.
[0045] In other embodiments, the ventilation position of the filter plate 33 can also be made of polyvinylidene fluoride, polypropylene, glass fiber, or cellulose acetate and other materials. While ensuring the isolation of dust, it can also ensure the normal entry of smoke in the air to ensure the real-time monitoring of the air by the device and achieve the effects of preventing fires and giving an alarm in time.
[0046] In the present utility model, the motor 41 drives the knocking rod 44 to knock on the filter net, which can shake off the dust attached to the filter plate 33, avoiding the potential hazard of damaging the internal components of the device due to manual wiping of the dust. At the same time, the device will not be affected by dust adhesion to affect the real-time collection and detection of air, improving the detection accuracy.
[0047] Smoke sensors are widely used in the security prevention systems of public places such as homes, shopping malls, hospitals, and subways, effectively improving the fire warning and emergency handling capabilities. Therefore, a simple, fast, and stable installation method is required.
[0048] In this embodiment, the base 2 is threadedly connected to the dust-proof component 3, and four fixing grooves are arranged in a circular array on the base 2, and expansion screws can be used to fix it, which is convenient for installing the device in areas with high sensitivity and where smoke is likely to concentrate.
[0049] At the same time, the outer cover 1 is set to be threadedly connected to the base 2, which is more convenient for the disassembly or installation of the device. And an air inlet hole is provided on the outer cover 1, which can protect the inside of the device while ensuring air circulation, avoiding damage to the device caused by accidental contact by personnel or other means during daily use. Avoiding the economic losses caused by device damage or the greater casualties and economic losses caused by the inability to detect smoke in time due to device damage resulting in a fire.
[0050] The alarm 9 is fixedly connected to the outer cover 1. In this embodiment, the alarm 9 can be set for light alarm, sound alarm, or both used simultaneously.
[0051] In summary, by setting the filter plate 33, the present utility model can isolate the free dust in the air, preventing the dust from entering the interior of the device, thus not affecting the sensitivity of the internal components of the device, extending the service life of the device, and ensuring the detection performance of the device. By driving the motor 41 in the driving assembly 4 to drive the knocking rod 44 to knock on the filter net, the dust attached to the filter plate 33 can be shaken off, avoiding the potential risk of damaging the internal components of the device due to manual wiping of the dust, preventing the device from being affected by dust attachment and affecting the real-time air collection and detection, improving the detection accuracy, thus preventing fires and protecting personal safety.
[0052] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, any modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.
Claims
1. A smoke sensor housing with the function of preventing dust from entering, characterized in that, Comprising: A dust-proof component (3), the dust-proof component (3) includes a ring (31), a toothed ring (32), a filter plate (33) and two groups of springs (36), the filter plate (33) is arranged inside the ring (31), and a smoke sensor is arranged below the filter plate (33); the spring (36) abuts against the filter plate (33); the toothed ring (32) is rotatably connected to the outside of the ring (31); Two groups of driving components (4), the two groups of driving components (4) are symmetrically arranged and fixedly connected to the outside of the ring (31), and the two groups of driving components (4) are used to drive the two sides of the filter plate (33) to move in opposite directions.
2. The smoke sensor housing with the function of preventing dust from entering according to claim 1, characterized in that: The two groups of driving components (4) include a gear (42), a push rod (43), a striking rod (44) and a limit block (45), the gear (42) meshes with the toothed ring (32), and the striking rod (44) abuts against the filter plate (33); the push rod (43) is rotatably connected to the gear (42) and is rotatably connected to the striking rod (44); the limit block (45) is fixedly connected to the outside of the ring (31) and is slidably connected to the striking rod (44).
3. The smoke sensor housing with the function of preventing dust from entering according to claim 2, wherein: The two groups of driving components (4) further include a motor (41), the motor (41) is fixedly connected to the outside of the ring (31), and its drive shaft is coaxially and fixedly connected to the gear (42).
4. The smoke sensor housing with the function of preventing dust from entering according to claim 1, characterized in that: The dust-proof component (3) further includes two support plates (35), the support plates (35) are fixedly connected to the outside of the ring (31) and abut against the spring (36).
5. The smoke sensor housing with the function of preventing dust from entering according to claim 1, characterized in that: It further includes a base (2), and the base (2) is threadedly connected to the dust-proof component (3).
6. The smoke sensor housing with the function of preventing dust from entering according to claim 5, wherein: It further includes an outer cover (1), and the outer cover (1) is threadedly connected to the base (2).
7. The smoke sensor housing with the function of preventing dust from entering according to claim 6, characterized in that: It further includes an alarm (9), and the alarm (9) is fixedly connected to the outer cover (1).