Self-cleaning dust smoke detector

Abstract

The utility model relates to the technical field of smoke sensing alarms, and discloses a self-cleaning dust smoke sensor, which comprises a smoke sensor base, a mounting sleeve and an air blowing assembly, a smoke sensor shell is fixedly mounted at the top of the smoke sensor base, a positioning sleeve is fixedly mounted at the top of the smoke sensor base, and a partition plate is fixedly mounted at the top of the positioning sleeve. A sensing head is arranged at the top of the partition plate, a clamping block is fixedly mounted on the outer side of the mounting sleeve, a dust filter is fixedly mounted in the mounting sleeve, a pipeline hole is formed in the outer side of the dust filter, a first hose is arranged at one end of the air blowing assembly, and an electromagnetic valve is arranged at the other end of the first hose. According to the self-cleaning dust smoke sensing and blowing assembly, the dust filter is blown through wind power provided by the draught fan, automatic cleaning is achieved, the cost and workload of manual cleaning are reduced, meanwhile, the filtering effect of the dust filter is kept, the service life is prolonged, and through cooperation of the internal thread and the external thread, the tuyere can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke alarms, in particular to a self-cleaning dust smoke alarm. Background Art

[0002] Smoke alarm is actually another name for smoke sensor or smoke alarm. Smoke alarm achieves fire prevention by monitoring the concentration of smoke. It uses ion smoke sensor inside. Ion smoke sensor is a technologically advanced sensor with stable and reliable operation. It is widely used in various fire alarm systems and its performance is far superior to gas sensitive resistor fire alarm.

[0003] Chinese utility model patent announcement number: CN 219017073 U, discloses: a high-efficiency smoke alarm device, which is equipped with a cleaning component that is compatible with the inner wall of the dust cover at the air inlet. When the shell body is operating normally, the cleaning component is started synchronously, and the output shaft of the motor drives two sets of brush strips and the inner wall of the dust cover to continuously rotate to keep the filter holes on the dust cover unobstructed. However, although the high-efficiency smoke alarm device is designed with a cleaning component, it is inconvenient to clean when dust is blocked on the outside of the dust cover, resulting in blockage, affecting the normal operation of the sensor alarm, poor practicality, and not convenient for popularization and use. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a self-cleaning dust and smoke sensor, which can effectively solve the problem that although a cleaning component is designed in the prior art, it is inconvenient to clean when dust is blocked on the outside, which causes blockage and affects the normal operation of the sensing alarm, resulting in poor practicality and inconvenience in promotion and use.

[0005] The technical solution adopted by the present utility model is: a self-cleaning dust smoke sensor, comprising a smoke sensor base, a mounting sleeve and a blowing assembly, a smoke sensor shell is fixedly mounted on the top of the smoke sensor base, a positioning sleeve is fixedly mounted on the top of the smoke sensor base, a partition is fixedly mounted on the top of the positioning sleeve, a sensing head is provided on the top of the partition, a clamping block is fixedly mounted on the outside of the mounting sleeve, a dust filter is fixedly mounted inside the mounting sleeve, a pipe hole is provided on the outside of the dust filter, a hose 1 is provided at one end of the blowing assembly, a solenoid valve is provided at the other end of the hose 1, a hose 2 is provided at the other end of the solenoid valve, and a fan is provided at the other end of the hose 2.

[0006] Preferably, mounting holes are provided on the top of the smoke sensor base, and the mounting holes are provided in two identical groups, each group of the mounting holes is provided with two identical holes, and the two groups of the mounting holes are symmetrically distributed about the center line of the smoke sensor base.

[0007] Through the above technical solution, through the design of the mounting holes, when installing, it can be installed to the appropriate position through the mounting holes, and multiple mounting holes can make the installation more stable and not easy to shake, ensuring that it can maintain a stable working state in various environments.

[0008] Preferably, a smoke sensor circuit board is fixedly mounted on the top of the smoke sensor base, and the smoke sensor circuit board is electrically connected to the sensor head.

[0009] Through the above technical solution, through the cooperation between the smoke sensing circuit board and the sensor head, when the sensor head senses dust, an alarm can be issued through the circuit board, or the obtained situation can be fed back.

[0010] Preferably, a positioning bolt 1 is fixedly installed on the top of the partition, and the positioning bolt 1 passes through the partition and extends to the interior of the positioning sleeve and is threadedly connected to the positioning sleeve.

[0011] Through the above technical solution, the partition is fixed to the positioning sleeve by the positioning bolt, providing stable support and protection for the sensing head, ensuring the normal operation of the sensing head, and facilitating disassembly and maintenance.

[0012] Preferably, a placement groove and a card slot are provided on the outside of the smoke sensor housing, an installation sleeve is provided inside the placement groove, the card block is adapted to the card slot, a positioning bolt 2 is provided on the top of the card block, and the positioning bolt 2 passes through the card block and extends to the inside of the smoke sensor housing.

[0013] Through the above technical solution, during installation, the installation sleeve is placed into the placement groove on the outside of the smoke sensor housing so that the card block fits into the card groove, and then the positioning bolt 2 is used to penetrate the card block and screw it into the inside of the smoke sensor housing to fix the installation sleeve. At this time, the dust filter inside the installation sleeve is on the outside of the sensor head. The cooperation between the card block, the card groove and the positioning bolt 2 makes the installation and disassembly of the installation sleeve more convenient, and facilitates the replacement and maintenance of the dust filter.

[0014] Preferably, the dust filter is provided with filter hole 1 and filter hole 2 on the top and outside, the filter hole 1 and filter hole 2 have a diameter of about 5 microns, and the dust filter is located outside the sensor head.

[0015] Through the above technical solution, through the design of filter hole one and filter hole two, dust in the air can be effectively filtered, preventing dust from interfering with the sensor head, and improving the accuracy of smoke detection.

[0016] Preferably, the blowing assembly includes a blowing pipe and an air nozzle, a connecting flange is provided at one end of the blowing pipe, an air inlet pipe is provided at the other end of the blowing pipe, an internal thread is provided on the inner side of the air inlet pipe, and an external thread is provided on the outer side of the air nozzle, the internal thread and the external thread are adapted to each other, and the blowing assembly, hose 1, solenoid valve, hose 2 and the blower are connected.

[0017] Through the above technical solution, when cleaning is required, the fan is started, and the wind enters the blowing assembly through hose 2, solenoid valve, and hose 1 in sequence. Specifically, the wind enters the blowing pipe from the air inlet pipe, and is then blown out through the air nozzle to blow the dust filter. The blowing assembly uses the wind force provided by the fan to blow the dust filter, thereby achieving automatic cleaning, reducing the cost and workload of manual cleaning, while maintaining the filtering effect of the dust filter and extending its service life. The combination of the internal thread and the external thread also facilitates the replacement of the air nozzle.

[0018] Compared with the existing technology, the present invention provides a self-cleaning dust and smoke sensor with the following beneficial effects:

[0019] 1. The self-cleaning dust and smoke detector uses the wind provided by the fan to blow the dust filter to achieve automatic cleaning, reducing the cost and workload of manual cleaning while maintaining the filtering effect of the dust filter and extending its service life. The combination of the internal and external threads also makes it easy to replace the air nozzle. When dust is outside the dust cover, it can be blown away by wind to avoid clogging, making it easy to clean without affecting the normal operation of the smoke alarm. It is highly practical and easy to promote and use.

[0020] 2. The self-cleaning dust smoke sensor can effectively filter dust in the air through the design of filter hole 1 and filter hole 2, prevent dust from interfering with the sensor head, improve the accuracy of smoke detection, and improve the coordination between the card block, card slot and positioning bolt 2, making the installation and removal of the installation sleeve more convenient and facilitating the replacement and maintenance of the dust filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the smoke sensor housing and the installation sleeve of the utility model;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the installation sleeve and the dust filter of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the smoke sensor housing and the smoke sensor circuit board of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the blowing component of the utility model.

[0026] Among them: 1. Smoke sensor base; 2. Mounting hole; 3. Smoke sensor housing; 4. Smoke sensor circuit board; 5. Positioning sleeve; 6. Partition; 7. Positioning bolt 1; 8. Sensor head; 9. Placement slot; 10. Card slot; 11. Mounting sleeve; 12. Card block; 13. Positioning bolt 2; 14. Dust filter; 15. Filter hole 1; 16. Filter hole 2; 17. Pipe hole; 18. Blowing assembly; 1801. Blowing pipe; 1802. Connecting flange; 1803. Air inlet pipe; 1804. Internal thread; 1805. Nozzle; 1806. External thread; 19. Hose 1; 20. Solenoid valve; 21. Hose 2; 22. Fan. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1: Figure 1-5 As shown, the utility model provides a self-cleaning dust smoke sensor, including a smoke sensor base 1, a mounting sleeve 11 and a blowing assembly 18. A smoke sensor housing 3 is fixedly installed on the top of the smoke sensor base 1, a positioning sleeve 5 is fixedly installed on the top of the smoke sensor base 1, a partition 6 is fixedly installed on the top of the positioning sleeve 5, and a sensing head 8 is provided on the top of the partition 6. A clamping block 12 is fixedly installed on the outside of the mounting sleeve 11, a dust filter 14 is fixedly installed inside the mounting sleeve 11, and a pipe hole 17 is opened on the outside of the dust filter 14. A hose 19 is provided at one end of the blowing assembly 18, and a solenoid valve 20 is provided at the other end of the hose 19. A hose 2 21 is provided at the other end of the solenoid valve 20, and a fan 22 is provided at the other end of the hose 2 21.

[0029] Specifically, a mounting hole 2 is opened on the top of the smoke detector base 1, and the mounting holes 2 are provided in two identical groups, and each group of mounting holes 2 is provided with two identical holes. The two groups of mounting holes 2 are symmetrically distributed about the center line of the smoke detector base 1. The advantage is that through the design of the mounting holes 2, when installing, it can be installed to the appropriate position through the mounting holes 2, and multiple mounting holes 2 can make the installation more stable and not easy to shake, ensuring that it can maintain a stable working state in various environments.

[0030] Specifically, a smoke sensor circuit board 4 is fixedly installed on the top of the smoke sensor base 1, and the smoke sensor circuit board 4 is electrically connected to the sensor head 8. The advantage is that through the cooperation between the smoke sensor circuit board 4 and the sensor head 8, when the sensor head 8 senses dust, an alarm can be issued through the circuit board 4, or the obtained situation can be fed back.

[0031] Specifically, a positioning bolt 7 is fixedly mounted on the top of the partition 6. The positioning bolt 7 penetrates the partition 6 and extends into the interior of the positioning sleeve 5, where it is threadedly connected. Advantageously, the positioning bolt 7 secures the partition 6 to the positioning sleeve 5, providing stable support and protection for the sensor head 8, ensuring its normal operation, while also facilitating disassembly and maintenance.

[0032] Example 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0033] Specifically, a placement groove 9 and a card slot 10 are provided on the outside of the smoke sensor housing 3, and an installation sleeve 11 is provided inside the placement groove 9. The card block 12 is adapted to the card slot 10, and a positioning bolt 2 13 is provided on the top of the card block 12. The positioning bolt 2 13 passes through the card block 12 and extends to the inside of the smoke sensor housing 3. The advantage is that during installation, the installation sleeve 11 is placed into the placement groove 9 on the outside of the smoke sensor housing 3, so that the card block 12 is adapted to the card slot 10, and then the positioning bolt 2 13 is used to pass through the card block 12 and screw it into the inside of the smoke sensor housing 3 to fix the installation sleeve 11. At this time, the dust filter 14 located inside the installation sleeve 11 is on the outside of the sensor head 8. The cooperation of the card block 12, the card slot 10 and the positioning bolt 2 13 makes the installation and disassembly of the installation sleeve 11 more convenient, and facilitates the replacement and maintenance of the dust filter 14.

[0034] Specifically, filter hole 15 and filter hole 2 16 are provided on the top and outside of the dust filter 14. The diameter of filter hole 15 and filter hole 2 16 is about 5 microns. The dust filter 14 is located on the outside of the sensing head 8. The advantage is that the design of filter hole 15 and filter hole 2 16 can effectively filter dust in the air, prevent dust from interfering with the sensing head 8, and improve the accuracy of smoke detection.

[0035] Specifically, the blowing assembly 18 includes a blowing pipe 1801 and a nozzle 1805. A connecting flange 1802 is provided at one end of the blowing pipe 1801, and an air inlet pipe 1803 is provided at the other end of the blowing pipe 1801. An internal thread 1804 is provided on the inside of the air inlet pipe 1803, and an external thread 1806 is provided on the outside of the nozzle 1805. The internal thread 1804 and the external thread 1806 are adapted to each other. The blowing assembly 18, the hose 19, the solenoid valve 20, the hose 21 and the fan 22 are connected. The advantage is that when cleaning is required, the fan 22 is started, and the wind passes through the hose in sequence. 2. 21. Solenoid valve 20 and hose 19 enter the blowing assembly 18. Specifically, the wind enters the blowing pipe 1801 from the air inlet pipe 1803 and is blown out through the air nozzle 1805 to purge the dust filter 14. The blowing assembly 18 uses the wind power provided by the fan 22 to purge the dust filter 14, thereby achieving automatic cleaning and reducing the cost and workload of manual cleaning. At the same time, the filtering effect of the dust filter 14 is maintained, and the service life is extended. In addition, the cooperation between the internal thread 1804 and the external thread 1806 also facilitates the replacement of the air nozzle 1805.

[0036] Working principle: When in use, through the design of the mounting hole 2, when installing, it can be installed to the appropriate position through the mounting hole 2, and multiple mounting holes 2 can make the installation more stable and not easy to shake, ensuring that it can maintain a stable working state in various environments. Through the cooperation of the smoke sensing circuit board 4 and the sensor head 8, when the sensor head 8 senses dust, it can alarm through the circuit board 4, or feedback the situation obtained, and fix the partition 6 on the positioning sleeve 5 through the positioning bolt 7 to provide stable support and protection for the sensor head 8, ensuring the sensor In order to ensure the normal operation of the sensor head 8 and facilitate disassembly and maintenance, during installation, place the installation sleeve 11 into the placement groove 9 on the outside of the smoke sensor housing 3, so that the card block 12 is adapted to the card groove 10, and then use the second positioning bolt 13 to penetrate the card block 12 and screw it into the inside of the smoke sensor housing 3 to fix the installation sleeve 11. At this time, the dust filter 14 inside the installation sleeve 11 is on the outside of the sensor head 8. The cooperation of the card block 12, the card groove 10 and the second positioning bolt 13 makes the installation and disassembly of the installation sleeve 11 more convenient, and it is convenient to replace and maintain the dust filter 14. Through the design of filter hole 15 and filter hole 2 16, dust in the air can be effectively filtered to prevent dust from interfering with the sensor head 8, thereby improving the accuracy of smoke detection. When cleaning is needed, the fan 22 is started, and the wind enters the blowing assembly 18 through hose 2 21, solenoid valve 20, and hose 1 19 in sequence. Specifically, the wind enters the blowing pipe 1801 from the air inlet pipe 1803, and is then blown out through the air nozzle 1805 to purge the dust filter 14. The blowing assembly 18 purges the dust filter 14 through the wind force provided by the fan 22, thereby achieving automatic cleaning, reducing the cost and workload of manual cleaning, while maintaining the filtering effect of the dust filter 14 and extending its service life. In addition, the cooperation between the internal thread 1804 and the external thread 1806 also facilitates the replacement of the air nozzle 1805.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning dust smoke sensor, comprising a smoke sensor base (1), a mounting sleeve (11) and a blowing assembly (18), characterized in that: A smoke sensor housing (3) is fixedly mounted on the top of the smoke sensor base (1), a positioning sleeve (5) is fixedly mounted on the top of the smoke sensor base (1), a partition (6) is fixedly mounted on the top of the positioning sleeve (5), a sensing head (8) is arranged on the top of the partition (6), a clamping block (12) is fixedly mounted on the outside of the mounting sleeve (11), a dust filter (14) is fixedly mounted inside the mounting sleeve (11), a pipe hole (17) is provided on the outside of the dust filter (14), a hose (19) is arranged at one end of the blowing assembly (18), a solenoid valve (20) is arranged at the other end of the hose (19), a hose (21) is arranged at the other end of the solenoid valve (20), a fan (22) is arranged at the other end of the hose (21).

2. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: The top of the smoke sensor base (1) is provided with mounting holes (2), and the mounting holes (2) are provided in two identical groups, each group of the mounting holes (2) is provided with two identical holes, and the two groups of the mounting holes (2) are symmetrically distributed about the center line of the smoke sensor base (1).

3. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: A smoke sensing circuit board (4) is fixedly mounted on the top of the smoke sensing base (1), and the smoke sensing circuit board (4) is electrically connected to the sensing head (8).

4. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: A positioning bolt (7) is fixedly installed on the top of the partition (6). The positioning bolt (7) passes through the partition (6) and extends to the inside of the positioning sleeve (5) and is threadedly connected to it.

5. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: The outer side of the smoke sensor housing (3) is provided with a placement groove (9) and a clamping groove (10); a mounting sleeve (11) is provided inside the placement groove (9); the clamping block (12) is adapted to the clamping groove (10); a second positioning bolt (13) is provided on the top of the clamping block (12); the second positioning bolt (13) passes through the clamping block (12) and extends to the interior of the smoke sensor housing (3).

6. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: The dust filter (14) is provided with a filter hole 1 (15) and a filter hole 2 (16) on the top and outside. The filter hole 1 (15) and the filter hole 2 (16) have a diameter of about 5 microns. The dust filter (14) is located outside the induction head (8).

7. The self-cleaning dust and smoke sensor according to claim 1, characterized in that: The blowing assembly (18) includes a blowing pipe (1801) and an air nozzle (1805), one end of the blowing pipe (1801) is provided with a connecting flange (1802), the other end of the blowing pipe (1801) is provided with an air inlet pipe (1803), the inner side of the air inlet pipe (1803) is provided with an internal thread (1804), the outer side of the air nozzle (1805) is provided with an external thread (1806), the internal thread (1804) and the external thread (1806) are adapted to each other, and the blowing assembly (18), hose 1 (19), solenoid valve (20), hose 2 (21) and fan (22) are connected.

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