Smoke audible and visual alarm

Abstract

The utility model belongs to the technical field of alarms, in particular to a smoke audible and visual alarm, which is characterized by comprising a mounting seat provided with a mounting mechanism; the cover body is arranged below the mounting seat, a plurality of ventilation openings are formed in the cover body, and a cavity is formed in the cover body; the fixing plate is arranged at one end, facing the mounting seat, of the cover body and is connected with the cover body; the smoke detector is arranged in the cavity, and the smoke detector is connected with the cover body; the alarm is arranged in the cavity, and the alarm is connected with the smoke detector; the plurality of fins are arranged in the cavity; the insect-proof net is arranged on the outer side of the smoke detector; and the plurality of fins are spirally arranged at the ventilation opening. The smoke alarm has the beneficial effects that the influence of external interferents such as light, dust, insects and the like on the smoke alarm can be reduced, and the sensitivity and the alarm accuracy of the smoke alarm are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of alarms, and particularly refers to a smoke sound and light alarm Background Art

[0002] A sound and light alarm is an electronic product that uses forms such as sound and light to remind or warn us to take certain actions to prevent or avoid the consequences caused by the occurrence of an event. Inside a smoke sound and light alarm, there usually includes a light source and a photosensitive element (such as a photodiode). When there is no smoke, the light emitted by the light source can directly irradiate the photosensitive element, maintaining a certain light intensity. However, when smoke enters the alarm, the smoke particles will scatter the light emitted by the light source, causing a change in the light intensity received by the photosensitive element. When the degree of weakening of the light intensity reaches a preset threshold, the alarm will determine that there is smoke and trigger the alarm mechanism

[0003] However, smoke sound and light alarms are generally installed on high places such as walls or ceilings for a long time. External light, dust, insects and other interfering substances are likely to enter the alarm, affecting the sensitivity of the smoke sound and light alarm and causing false alarms. Reduce the influence of insects and dust on the smoke detector, so that the alarm of the smoke sound and light alarm is more accurate Summary of the Utility Model

[0004] The purpose of the utility model is to provide a smoke sound and light alarm for the above-mentioned existing technical problems, which can reduce the influence of external light, dust, insects and other interfering substances on the smoke alarm, and improve the sensitivity and alarm accuracy of the smoke alarm

[0005] The purpose of the utility model is realized as follows: A smoke sound and light alarm, comprising

[0006] A mounting base, on which a mounting mechanism is provided

[0007] A cover body, arranged below the mounting base, with a plurality of ventilation openings provided on the cover body, and a cavity provided inside the cover body

[0008] A fixing plate, arranged at one end of the cover body facing the mounting base, and the fixing plate is connected to the mounting base

[0009] A smoke detector, arranged inside the cavity, and the smoke detector is connected to the cover body

[0010] An alarm, arranged inside the cavity, and the alarm is connected to the smoke detector

[0011] A plurality of fins, arranged inside the cavity

[0012] An insect-proof net, arranged outside the smoke detector

[0013] Among them, multiple of the fins are spirally arranged at the ventilation opening.

[0014] The present utility model is further configured as: further comprising:

[0015] A partition plate is arranged in the cavity. The partition plate is arranged between the smoke detector and the alarm. The alarm is connected to the bottom of the partition plate, the smoke detector is connected to the top of the partition plate, and the bottom of the cover body is provided with a through hole. Multiple of the fins are arranged on the partition plate.

[0016] The present utility model is further configured as: the cover body includes:

[0017] An upper cover is arranged below the mounting seat. The upper cover is connected to the mounting seat, and the ventilation opening is arranged on the upper cover;

[0018] A lower cover is arranged below the upper cover. The lower cover is threadedly connected to the upper cover, and the through hole is arranged on the lower cover.

[0019] The present utility model is further configured as: a fixing frame. An insect-proof net is arranged in the fixing frame. The fixing frame is arranged outside the smoke detector. The partition plate is provided with a fixing groove, and the bottom of the fixing frame is provided with a fixing protrusion. The fixing protrusion is snap-fitted with the fixing groove.

[0020] The present utility model is further configured as: the installation mechanism includes:

[0021] The installation mechanism includes:

[0022] A plugging protrusion is arranged at one end of the fixing plate facing the mounting seat. A clamping protrusion is arranged on the plugging protrusion;

[0023] A plugging groove is arranged in the mounting seat. A clamping cavity for the clamping protrusion to rotate is arranged in the plugging groove;

[0024] Among them, the plugging protrusion is inserted into the plugging groove, and the clamping protrusion is snap-fitted with the clamping cavity.

[0025] The present utility model is further configured as: the installation mechanism further includes:

[0026] An abutting plate is arranged on the mounting seat. One end of the abutting plate abuts against the top of the plugging protrusion;

[0027] An elastic member is arranged between the abutting plate and the mounting seat. One end of the elastic member is connected to the mounting seat, and the other end abuts against the abutting plate.

[0028] The present utility model is further configured as: the installation mechanism further includes:

[0029] A limiting protrusion is arranged at one end of the mounting base facing the plugging protrusion, and the outer periphery of the abutting plate is in contact with the inner wall of the limiting protrusion.

[0030] By adopting the above technical solutions, the present utility model has at least the following beneficial effects:

[0031] 1. An insect-proof net is arranged outside the smoke detector, which can effectively prevent foreign matters such as insects and dust from entering the smoke detector, prevent the foreign matters from interfering with the detection of the smoke detector. At the same time, a plurality of fins are spirally arranged at the ventilation opening, and the fins can block the external light from entering the inside of the alarm, enhance the detection sensitivity of the alarm, and improve the accuracy of the alarm of the alarm.

[0032] 2. The spiral arrangement of a plurality of fins can enhance the ventilation capacity of the alarm, make the smoke easier to enter the alarm and be detected by the smoke detector, enhance the detection sensitivity of the smoke detector, and thus improve the alarm accuracy of the alarm.

[0033] 3. Through holes are arranged on the lower cover, and an alarm is arranged below the partition plate. The through holes can reduce the obstruction of the cover body to the sound and light alarms emitted by the alarm. At the same time, the partition plate can separate the smoke detector from the alarm, preventing foreign matters such as dust and insects from entering the smoke detector through the through holes on the lower cover and affecting the sensitivity of the smoke detector.

[0034] 4. Through the cooperation of the plugging protrusion, the plugging groove, the clamping protrusion and the clamping cavity, the user can directly insert the cover body on the mounting base and rotate it to fix the cover body and the mounting base, which is convenient for the user to install and disassemble the alarm. Description of the Drawings

[0035] Figure 1 is a schematic diagram of the smoke sound and light alarm of the present utility model;

[0036] Figure 2 is a schematic diagram of the fin of the present utility model;

[0037] Figure 3 is a schematic diagram of the new fixing frame of the present utility model

[0038] Figure 4 is a sectional view of the sound and light alarm of the present utility model;

[0039] Figure 5 is an enlarged view of part A of the present utility model;

[0040] Figure 6 is a schematic diagram of the cover body of the present utility model;

[0041] Figure 7 is a schematic diagram of the mounting base of the present utility model;

[0042] The reference numerals in the figure are: 1 - mounting base, 2 - cover body, 3 - fixing plate, 4 - smoke detector, 5 - alarm, 6 - fin, 7 - insect-proof net, 11 - insertion protrusion, 12 - clamping protrusion, 13 - insertion groove, 14 - clamping cavity, 15 - abutting plate, 16 - elastic member, 17 - limiting protrusion, 21 - cavity, 22 - ventilation opening, 23 - upper cover, 24 - lower cover, 25 - partition plate, 26 - through hole, 71 - fixing frame, 72 - fixing protrusion, 251 - fixing groove. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the accompanying drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further described in subsequent drawings.

[0045] Next, the present utility model will be further described with specific embodiments in conjunction with the accompanying drawings. See Figure 1-7 :

[0046] Embodiment 1.

[0047] This embodiment provides a smoke and sound alarm 5, including:

[0048] A mounting base 1, on which a mounting mechanism is provided;

[0049] A cover body 2, arranged below the mounting base 1, on which a plurality of ventilation openings 22 are provided, and a cavity 21 is arranged inside the cover body 2;

[0050] A fixing plate 3, arranged at one end of the cover body 2 facing the mounting base 1, and the fixing plate 3 is connected to the mounting base 1;

[0051] A smoke detector 4, arranged inside the cavity 21, and the smoke detector 4 is connected to the cover body 2;

[0052] An alarm 5 is arranged in the cavity 21, and the alarm 5 is connected to the smoke detector 4;

[0053] A plurality of fins 6 are arranged in the cavity 21;

[0054] An insect-proof net 7 is arranged outside the smoke detector 4;

[0055] Among them, the plurality of fins 6 are spirally arranged at the ventilation opening 22.

[0056] As Figure 1-5 shown, the mounting base 1 can be arranged at a high place such as a wall or a ceiling. A cover body 2 is provided below the mounting base 1. An installation mechanism is provided between the cover body 2 and the mounting base 1. The fixing plate 3 is connected to the mounting base 1 through the installation mechanism, so that the cover body 2 and the mounting base 1 are fixedly connected.

[0057] The cover body 2 is cylindrical, and a plurality of ventilation openings 22 are evenly arranged on the outer periphery of the cover body 2. The ventilation openings 22 can allow the external smoke to enter the cavity 21, so as to be detected by the smoke detector 4, and then control the alarm 5 to issue an alarm reminder.

[0058] An insect-proof net 7 is arranged outside the smoke detector 4. The insect-proof net 7 can effectively block foreign matters such as dust and insects from entering the smoke detector 4, affect the detection accuracy of the smoke detector 4, and prevent the alarm 5 from giving false alarms.

[0059] A plurality of fins 6 are arranged in the cavity. The plurality of fins 6 are arranged at the ventilation openings 22. The plurality of fins 6 can block the transmission of external light into the detector, reduce the influence of external light on the detector, enhance the detection accuracy of the smoke detector 4, thereby improving the alarm accuracy of the smoke and sound alarm 5, and preventing the alarm 5 from giving false alarms.

[0060] At the same time, the plurality of fins 6 are spirally arranged at the ventilation openings 22. The fins 6 are arc-shaped sheet structures. The adjacent two fins 6 and the ventilation openings 22 can form a ventilation channel, which can enhance the air circulation in the cover body 2, promote the smoke to enter the smoke detector 4 for detection, improve the sensitivity of the smoke detector 4, and enhance the alarm accuracy of the smoke and sound alarm 5.

[0061] External threads are provided on the outer side of the fixing plate 3, and mating internal threads are provided on the cover body 2. The fixing plate 3 and the cover body 2 are connected by threads.

[0062] The insect-proof net 7 can be made of materials such as plastic. The present utility model is preferably a stainless steel mesh. The stainless steel mesh has excellent corrosion resistance and high strength. It has a long service life and can also withstand a certain external impact force, protecting the smoke detector 4 from damage.

[0063] Embodiment 2:

[0064] This embodiment provides a smoke acoustic - optical alarm 5. In addition to including the technical solutions of the above - mentioned embodiment, it also has the following technical features.

[0065] It further includes:

[0066] A partition plate 25, which is arranged in the cavity 21. The partition plate 25 is arranged between the smoke detector 4 and the alarm 5. The alarm 5 is connected to the bottom of the partition plate 25, and the smoke detector 4 is connected to the top of the partition plate 25. There is a through - hole 26 at the bottom of the cover body 2, and a plurality of fins 6 are arranged on the partition plate 25.

[0067] As Figure 2 、 4 Shown in Figure 4 - 5, there is a through - hole 26 at the bottom of the cover body 2. The alarm 5 is arranged above the through - hole 26. The through - hole 26 can effectively transmit the sound and light alarms emitted by the alarm 5 to the outside world, reducing the obstruction of the cover body 2 to the alarms emitted by the alarm 5. At the same time, the through - hole 26 also has a certain heat - dissipation function, which can prevent the smoke acoustic - optical alarm 5 from having too high a temperature during operation and affecting the detection effect.

[0068] The alarm 5 is arranged below the partition plate 25, and the smoke detector 4 is arranged above the partition plate 25. The partition plate 25 separates the smoke detector 4 from the alarm 5, which can prevent foreign matters such as dust and insects from entering the smoke detector 4 through the through - hole 26, affecting the detection effect of the smoke detector 4, and improving the alarm accuracy of the smoke acoustic - optical alarm 5.

[0069] The fins 6 and the partition plate 25 are integrally designed. The fins 6 and the partition plate 25 are both made of plastic. Plastic has a light mass, a long service life, and a low cost, which can effectively reduce the use and maintenance costs.

[0070] The cover body 2 includes:

[0071] An upper cover 23, which is arranged below the mounting base 1. The upper cover 23 is connected to the mounting base 1, and a ventilation opening 22 is arranged on the upper cover 23;

[0072] A lower cover 24, which is arranged below the upper cover 23. The lower cover 24 is threadedly connected to the upper cover 23, and the through - hole 26 is arranged on the lower cover 24.

[0073] As Figure 1-2 Shown in Figures 4 - 6, the upper cover 23 and the partition plate 25 are integrally designed. There is an external thread at the bottom of the upper cover 23, and a mating internal thread is provided at one end of the lower cover 24 facing the upper cover 23. The lower cover 24 is threadedly connected to the upper cover 23. When the alarm 5 is damaged, the lower cover 24 can be removed from the upper cover 23 at any time to repair or replace the alarm 5, improving the maintenance efficiency.

[0074] On both sides and the bottom of the lower cover 24, a plurality of through holes 26 are provided, which can improve the ventilation and heat dissipation capacity of the alarm 5, reduce the overall mass of the smoke and sound alarm 5, facilitate transportation and installation, and save costs at the same time.

[0075] Both the upper cover 23 and the lower cover 24 are made of plastic. Plastic has strong corrosion resistance, certain strength, light weight, low cost, and a long service life while reducing the usage cost.

[0076] It also includes:

[0077] A fixing frame 71, an insect-proof net 7 is arranged inside the fixing frame 71. The fixing frame 71 is arranged outside the smoke detector 4. A fixing groove 251 is provided on the partition plate 25. A fixing protrusion 72 is provided at the bottom of the fixing frame 71, and the fixing protrusion 72 is snap-fitted with the fixing groove 251.

[0078] As Figure 2-5 shown, the fixing frame 71 is used to fix the insect-proof net 7. The fixing groove 251 is circular, and the smoke detector 4 is arranged at the center of the fixing groove 251. The fixing frame 71 is snap-fitted and fixed in the fixing groove 251, so that the insect-proof net 7 covers the outside of the smoke detector 4, protecting the smoke detector 4 from interference by foreign objects such as insects and dust, and improving the detection accuracy of the smoke detector 4.

[0079] At the same time, the setting of the fixing frame 71 can facilitate the installation and disassembly of the insect-proof net 7. When the insect-proof net 7 is damaged, the fixing frame 71 can be directly removed and replaced, which can improve the maintenance efficiency.

[0080] Embodiment 3:

[0081] This embodiment provides a smoke and sound alarm 5. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0082] The installation mechanism includes:

[0083] A plug-in protrusion 11, which is arranged at one end of the fixing plate 3 facing the mounting seat 1. A clamping protrusion 12 is provided on the plug-in protrusion 11;

[0084] A plug-in slot 13, which is arranged inside the mounting seat 1. A clamping cavity 14 for the clamping protrusion 12 to rotate is provided inside the plug-in slot 13;

[0085] Among them, the plug-in protrusion 11 is inserted into the plug-in slot 13, and the clamping protrusion 12 is snap-fitted with the clamping cavity 14.

[0086] As Figure 4-7As shown, the snap protrusion 12, the plug-in protrusion 11, and the fixing plate 3 are integrally designed. The plug-in protrusion 11 is cylindrical, and snap protrusions 12 are provided on both sides of the plug-in protrusion 11. The plug-in groove 13 can cooperate with the plug-in protrusion 11 and the snap protrusion 12, so that when the plug-in protrusion 11 is inserted into the plug-in groove 13, the snap protrusion 12 enters the snap cavity 14. At this time, the user can rotate the fixing plate 3, so that the snap protrusion 12 is snap-fixed in the snap cavity 14. The bottom of the snap protrusion 12 abuts against the inner wall of the snap cavity 14, so that the cover body 2 is fixed to the mounting seat 1.

[0087] The user only needs to align the snap protrusion 12 with the plug-in groove 13, press the snap protrusion 12 into the plug-in groove 13 and rotate it. After the snap protrusion 12 is fixed in the snap cavity 14, the fixing of the cover body 2 to the mounting seat 1 can be completed. Continuing to rotate the fixing plate 3 can perform disassembly, which is convenient for disassembly and assembly and improves the efficiency of disassembly and installation at the same time.

[0088] The installation mechanism further includes:

[0089] A contact plate 15 is arranged on the mounting seat 1, and one end of the contact plate 15 abuts against the top of the plug-in protrusion 11;

[0090] An elastic member 16 is arranged between the contact plate 15 and the mounting seat 1. One end of the elastic member 16 is connected to the mounting seat 1, and the other end abuts against the contact plate 15.

[0091] As Figure 4-7 shown, the contact plate 15 is circular. The top of the contact plate 15 abuts against the plug-in protrusion 11. An elastic member 16 is arranged between the contact plate 15 and the mounting seat 1. After the cover body 2 is installed, the elastic member 16 can generate a downward elastic force on the contact plate 15, thereby enhancing the pressure of the bottom of the contact plate 15 on the top of the plug-in protrusion 11, thereby increasing the pressure of the bottom of the snap protrusion 12 on the inner wall of the snap cavity 14, fixing the cover body 2 in the mounting seat 1, improving the fixing stability of the cover body 2, and enhancing the installation stability of the smoke and sound and light alarm 5.

[0092] The installation mechanism further includes:

[0093] A limit protrusion 17 is arranged at one end of the mounting seat 1 facing the plug-in protrusion 11, and the outer periphery of the contact plate 15 contacts the inner wall of the limit protrusion 17.

[0094] As Figure 4-7 shown, the limit protrusion 17 is annular. The outer periphery of the contact plate 15 contacts the inner wall of the limit protrusion 17. The outer diameter of the plug-in protrusion 11 is equal to the outer diameter of the contact plate 15. The limit protrusion 17 can limit the contact plate 15 and the elastic member 16 to prevent the contact plate 15 and the elastic member 16 from shifting under force during installation, and improve the fixing stability of the installation mechanism.

[0095] The above embodiments are only preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A smoke sound and light alarm, characterized in that, Comprising: A mounting base (1) provided with a mounting mechanism thereon; A cover body (2) disposed below the mounting base (1), the cover body (2) being provided with a plurality of ventilation openings (22), and a cavity (21) being provided inside the cover body (2); A fixing plate (3) disposed at one end of the cover body (2) facing the mounting base (1), the fixing plate (3) being connected to the mounting base (1); A smoke detector (4) disposed inside the cavity (21), the smoke detector (4) being connected to the cover body (2); An alarm (5) disposed inside the cavity (21), the alarm (5) being connected to the smoke detector (4); A plurality of fins (6) disposed inside the cavity (21); An insect-proof net (7) disposed outside the smoke detector (4); Wherein, the plurality of fins (6) are spirally arranged at the ventilation openings (22).

2. The smoke acoustic-optic alarm according to claim 1, characterized in that, Further comprising: A partition plate (25) disposed inside the cavity (21), the partition plate (25) being disposed between the smoke detector (4) and the alarm (5), the alarm (5) being connected to the bottom of the partition plate (25), the smoke detector (4) being connected to the top of the partition plate (25), a through hole (26) being provided at the bottom of the cover body (2), and the plurality of fins (6) being disposed on the partition plate (25).

3. The smoke and sound-light alarm according to claim 2, wherein The cover body (2) includes: An upper cover (23) disposed below the mounting base (1), the upper cover (23) being connected to the mounting base (1), and the ventilation openings (22) being provided on the upper cover (23); A lower cover (24) disposed below the upper cover (23), the lower cover (24) being threadedly connected to the upper cover (23), and the through hole (26) being provided on the lower cover (24).

4. The smoke and sound-light alarm according to claim 2, characterized in that, Further comprising: A fixing frame (71), the insect-proof net (7) being disposed inside the fixing frame (71), the fixing frame (71) being disposed outside the smoke detector (4), a fixing groove (251) being provided on the partition plate (25), and a fixing protrusion (72) being provided at the bottom of the fixing frame (71), the fixing protrusion (72) being snap-fitted with the fixing groove (251).

5. The smoke acoustic-optical alarm according to claim 1, characterized in that, The mounting mechanism includes: A plugging protrusion (11) disposed at one end of the fixing plate (3) facing the mounting base (1), and a clamping protrusion (12) being provided on the plugging protrusion (11); A plugging groove (13) disposed inside the mounting base (1), and a clamping cavity (14) for the clamping protrusion (12) to rotate being provided inside the plugging groove (13); Wherein, the plugging protrusion (11) is inserted into the plugging groove (13), and the clamping protrusion (12) is snap-fitted with the clamping cavity (14).

6. The smoke and sound-light alarm according to claim 5, characterized in that, The mounting mechanism further includes: An abutting plate (15) disposed on the mounting base (1), one end of the abutting plate (15) abutting against the top of the plugging protrusion (11); An elastic member (16) disposed between the abutting plate (15) and the mounting base (1), one end of the elastic member (16) being connected to the mounting base (1), and the other end abutting against the abutting plate (15).

7. The smoke acoustic-optical alarm according to claim 6, characterized in that, The mounting mechanism further includes: A limiting protrusion (17), the limiting protrusion (17) is arranged at one end of the mounting base (1) facing the plugging protrusion (11), and the outer periphery of the abutting plate (15) is in contact with the inner wall of the limiting protrusion (17).

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