Smoke alarm convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of smoke alarms, in particular to a smoke alarm convenient to disassemble and assemble, which comprises a mounting seat, fixing bolts are fixedly connected to four corners of the upper part of the mounting seat in a penetrating manner, a cleaning structure is fixedly connected to the lower end of the mounting seat, and a circular hole groove is formed in the middle of the lower end of the mounting seat. An infrared induction device is fixedly connected to the right portion of the upper inner wall of the circular hole groove, a circuit board is fixedly connected to the middle of the upper inner wall of the circular hole groove, a buzzer is fixedly connected to the left portion of the upper inner wall of the circular hole groove, an extension cylinder is fixedly connected to the middle of the lower end of the mounting base, and a plurality of sets of fixing clamping grooves are formed in the middle of the extension cylinder at equal intervals. And a connecting structure is clamped outside the extension cylinder. According to the smoke alarm convenient to disassemble and assemble, the shell and the mounting base can be conveniently connected and disassembled through the arranged connecting structure, the use difficulty is reduced, the shell can be regularly cleaned through the cleaning structure, and the situation that dust or winged insects block and affect work is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke alarms, in particular to a smoke alarm which is easy to assemble and disassemble. Background Art

[0002] Smoke alarm is actually another name for smoke sensor. Smoke alarm achieves fire prevention by monitoring the concentration of smoke. It is generally divided into combustible gas alarm and non-combustible gas alarm. There are at least the following disadvantages in the use of existing smoke alarms: 1. The existing smoke alarm is connected by screws during use, so it is not convenient to disassemble and install the shell when replacing the internal battery, which increases the difficulty of use; 2. After the existing smoke alarm has been used for a period of time, the hollow shell may be blocked by dust or flying insects, making the induction of smoke weaker. Therefore, we have launched a new smoke alarm that is easy to disassemble and assemble. Utility Model Content

[0003] The main purpose of the utility model is to provide a smoke alarm which is easy to assemble and disassemble, and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A smoke alarm that is easy to disassemble and assemble comprises a mounting base, wherein fixing bolts are inserted and fixedly connected at the four corners of the upper portion of the mounting base, a cleaning structure is fixedly connected to the lower end of the mounting base, a circular hole groove is opened in the middle portion of the lower end of the mounting base, an infrared sensing device is fixedly connected to the right portion of the upper inner wall of the circular hole groove, a circuit board is fixedly connected to the middle portion of the upper inner wall of the circular hole groove, a buzzer is fixedly connected to the left portion of the upper inner wall of the circular hole groove, an extension tube is fixedly connected to the middle portion of the lower end of the mounting base, a plurality of groups of fixed clamping grooves are opened at equal distances in the middle portion of the extension tube, and a connecting structure is clamped to the outside of the extension tube.

[0006] Preferably, the connecting structure includes a sleeve tube, a plurality of groups of fixed clamping grooves are equidistantly opened in the middle of the sleeve tube, a hollow shell is fixedly connected to the lower end of the sleeve tube, a plurality of connecting plates are equidistantly fixedly connected to the inner wall of the sleeve tube, a cylindrical rod is commonly fixedly connected to the upper parts of the ends close to each other, a plurality of groups of accommodating tubes are equidistantly fixedly connected to the outer surfaces of the upper parts of the cylindrical rods, a plurality of groups of accommodating tubes are fixedly connected to the inner walls of the accommodating tubes, and a plurality of groups of telescopic springs are fixedly connected to the ends that are not in contact with the accommodating tubes.

[0007] Preferably, the hollow shell is a hemispherical structure, the telescopic clamping rod is clamped with a nearby fixed clamping groove, and the hollow shell is in contact with the cleaning structure but not fixed.

[0008] Preferably, the cleaning structure includes two left and right rectangular plates, the lower left end of the left rectangular plate is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a rotating plate, a plurality of groups of cleaning bristles are fixedly connected to the inner wall of the rotating plate at equal distances, the upper right end of the rotating plate is fixedly connected to a connecting rod, and the right end of the connecting rod is fixedly connected to a limiting plate.

[0009] Preferably, the connecting rod is movably connected with the rectangular plate on the right, the rotating plate is an arc-shaped structure, the rotating plate is located between the two groups of rectangular plates, and the two groups of rectangular plates are fixedly connected to the mounting seat.

[0010] Preferably, the cleaning structure is in contact with the connecting structure but is not fixed, and the connecting structure and the extension tube are both located in the middle of the cleaning structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By setting a connection structure, a telescopic spring fixedly connected to the accommodating tube fixedly connected to the cylindrical rod on the connection structure can ensure that the telescopic clamping rod can be restored to its original position after being compressed. The telescopic clamping rod is clamped with the fixed clamping grooves on the sleeve tube and the extension tube, and the lower structure can be connected with the extension tube, which is simple to operate and reduces the difficulty of use;

[0013] 2. By setting up a cleaning structure, the rotating plate on the cleaning structure can rotate under the drive of the driving motor to comprehensively clean the hollow shell, and the rotating plate is set to an arc-shaped structure, which can better fit the lower hollow shell to prevent dust and flying insects from clogging the lower hollow shell. The connecting rod on the right can connect the rotating plate with the rectangular plate and limit the position of the rotating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial structural schematic diagram of the smoke alarm which is easy to disassemble and assemble according to the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the smoke alarm which is easy to disassemble and assemble according to the utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the connection structure of the smoke alarm that is easy to disassemble and assemble according to the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of the cleaning structure of the smoke alarm which is easy to disassemble and assemble.

[0018] In the figure: 1. mounting base; 2. fixing bolt; 3. cleaning structure; 4. round hole groove; 5. infrared sensing device; 6. circuit board; 7. buzzer; 8. extension tube; 9. fixed clamping groove; 10. sleeve tube; 11. hollow shell; 12. connecting plate; 13. cylindrical rod; 14. accommodating tube; 15. telescopic spring; 16. telescopic clamping rod; 17. rectangular plate; 18. driving motor; 19. rotating plate; 20. cleaning bristles; 21. connecting rod; 22. limit plate; 23. connecting structure. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A smoke alarm which is easy to disassemble and assemble comprises a mounting base 1, wherein fixing bolts 2 are inserted and fixedly connected at the four corners of the upper portion of the mounting base 1, a cleaning structure 3 is fixedly connected to the lower end of the mounting base 1, a circular hole groove 4 is opened in the middle portion of the lower end of the mounting base 1, an infrared sensing device 5 is fixedly connected to the right portion of the upper inner wall of the circular hole groove 4, a circuit board 6 is fixedly connected to the middle portion of the upper inner wall of the circular hole groove 4, a buzzer 7 is fixedly connected to the left portion of the upper inner wall of the circular hole groove 4, an extension tube 8 is fixedly connected to the middle portion of the lower end of the mounting base 1, a plurality of groups of fixed clamping grooves 9 are opened at equal distances in the middle portion of the extension tube 8, and a connecting structure 23 is clamped to the outside of the extension tube 8.

[0024] In this embodiment, the connection structure 23 includes a sleeve tube 10, a plurality of fixed snap-in grooves 9 are equidistantly opened in the middle of the sleeve tube 10, a hollow shell 11 is fixedly connected to the lower end of the sleeve tube 10, a plurality of connecting plates 12 are equidistantly fixedly connected to the inner wall of the sleeve tube 10, a cylindrical rod 13 is fixedly connected to the upper part of the end close to the plurality of connecting plates 12, a plurality of accommodating tubes 14 are equidistantly fixedly connected to the upper outer surface of the cylindrical rod 13, a plurality of accommodating tubes 14 are fixedly connected to the inner walls of the plurality of accommodating tubes 14, and a plurality of telescopic springs 15 are fixedly connected to the inner walls of the plurality of accommodating tubes 14. The end in contact with the accommodating tube 14 is fixedly connected with a telescopic clamping rod 16. The hollow shell 11 is a hemispherical structure. The telescopic clamping rod 16 is clamped with the nearby fixed clamping groove 9. The hollow shell 11 is in contact with the cleaning structure 3 but not fixed. By fixing the telescopic spring 15 on the telescopic clamping rod 16, the telescopic clamping rod 16 can automatically reset after being compressed, and the accommodating tube 14 is in contact with the inner wall of the extension tube 8 but not fixed. The telescopic clamping rod 16 is clamped with the fixed clamping groove 9 to fix the position of the lower structure.

[0025] In this embodiment, the cleaning structure 3 includes two rectangular plates 17 on the left and right. The lower left end of the left rectangular plate 17 is fixedly connected to a driving motor 18, and the output end of the driving motor 18 is fixedly connected to a rotating plate 19. A plurality of groups of cleaning bristles 20 are fixedly connected to the inner wall of the rotating plate 19 at equal distances. A connecting rod 21 is fixedly connected to the upper right end of the rotating plate 19, and a limiting plate 22 is fixedly connected to the right end of the connecting rod 21. The connecting rod 21 is movably connected to the right rectangular plate 17 through an interlaced connection. The rotating plate 19 is an arc-shaped structure. The rotating plate 19 is located between the two groups of rectangular plates 17. Both groups of rectangular plates 17 are fixedly connected to the mounting seat 1. The cleaning structure 3 is in contact with the connecting structure 23 but is not fixed. The connecting structure 23 and the extension tube 8 are both located in the middle of the cleaning structure 3. By setting the rotating plate 19 to an arc-shaped structure, the hollow shell 11 can be more closely fitted. The connecting rod 21 can increase the stability of the rotating plate 19. The cleaning bristles 20 are in contact with the hollow shell 11 to achieve a cleaning effect.

[0026] It should be noted that the utility model is a smoke alarm that is easy to disassemble and assemble. During use, first, the extension tube 8 at the lower end of the mounting seat 1 is provided with a fixed snap-in groove 9, and the sleeve tube 10 on the connecting structure 23 is sleeved on the outside of the extension tube 8. The inner wall of the sleeve tube 10 is fixedly connected with a connecting plate 12, and the upper end of the connecting plate 12 is fixedly connected with a cylindrical rod 13. The accommodating tube 14 fixedly connected to the outer surface of the cylindrical rod 13 can contact the inner wall of the extension tube 8, and the telescopic snap-in rod 16 is fixedly connected to the telescopic spring 15 fixedly connected to the inner wall of the accommodating tube 14. When the sleeve tube 10 is sleeved on the outside of the extension tube 8, the telescopic snap-in rod 16 is compressed in the accommodating tube 14. Inside the receiving tube 14, a fixed snap-in groove 9 is opened on the extension tube 8 and the sleeve tube 10. When encountering the fixed snap-in groove 9, under the action of the telescopic spring 15, the telescopic snap-in rod 16 is snapped with the fixed snap-in groove 9 to complete the connection. Otherwise, it is disassembled. The operation is simple. The lower end of the mounting base 1 is fixedly connected with a cleaning structure 3. The rotating plate 19 on the cleaning structure 3 can rotate under the drive of the driving motor 18. The rotating plate 19 is an arc-shaped structure, which can better fit the hollow shell 11. The cleaning bristles 20 on the upper end of the rotating plate 19 can clean the hollow shell 11 to prevent dust and flying insects from causing blockage and affecting the operation of the alarm.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A smoke alarm that is easy to assemble and disassemble, comprising a mounting base (1), characterized in that: The four corners of the upper part of the mounting seat (1) are all inserted and fixedly connected with fixing bolts (2); the lower end of the mounting seat (1) is fixedly connected with a cleaning structure (3); a circular hole groove (4) is opened in the middle of the lower end of the mounting seat (1); an infrared sensing device (5) is fixedly connected to the right part of the upper inner wall of the circular hole groove (4); a circuit board (6) is fixedly connected to the middle part of the upper inner wall of the circular hole groove (4); a buzzer (7) is fixedly connected to the left part of the upper inner wall of the circular hole groove (4); an extension tube (8) is fixedly connected to the middle part of the lower end of the mounting seat (1); a plurality of groups of fixed clamping grooves (9) are opened at equal distances in the middle part of the extension tube (8); and a connecting structure (23) is clamped on the outside of the extension tube (8).

2. The smoke alarm that is easy to assemble and disassemble according to claim 1, characterized in that: The connection structure (23) comprises a sleeve tube (10), a plurality of groups of fixed clamping grooves (9) are formed at equal distances in the middle of the sleeve tube (10), a hollow shell (11) is fixedly connected to the lower end of the sleeve tube (10), a plurality of groups of connecting plates (12) are fixedly connected to the inner wall of the sleeve tube (10) at equal distances, a cylindrical rod (13) is fixedly connected to the upper parts of the ends of the plurality of groups of connecting plates (12) close to each other, a plurality of groups of accommodating tubes (14) are fixedly connected to the outer surfaces of the upper parts of the cylindrical rods (13) at equal distances, a plurality of groups of inner walls of the accommodating tubes (14) are fixedly connected to telescopic springs (15), and a plurality of groups of ends of the telescopic springs (15) not in contact with the accommodating tubes (14) are fixedly connected to telescopic clamping rods (16).

3. The smoke alarm that is easy to assemble and disassemble according to claim 2, characterized in that: The hollow shell (11) is a hemispherical structure, the telescopic clamping rod (16) is clamped with a nearby fixed clamping groove (9), and the hollow shell (11) is in contact with the cleaning structure (3) but not fixed.

4. The smoke alarm that is easy to assemble and disassemble according to claim 1, characterized in that: The cleaning structure (3) comprises two rectangular plates (17) on the left and right sides; the lower portion of the left end of the rectangular plate (17) on the left side is fixedly connected to a driving motor (18); the output end of the driving motor (18) is fixedly connected to a rotating plate (19); a plurality of groups of cleaning bristles (20) are fixedly connected to the inner wall of the rotating plate (19) at equal distances; the upper portion of the right end of the rotating plate (19) is fixedly connected to a connecting rod (21); the right end of the connecting rod (21) is fixedly connected to a limiting plate (22).

5. The smoke alarm that is easy to assemble and disassemble according to claim 4, characterized in that: The connecting rod (21) is movably connected to the rectangular plate (17) on the right side by interlacing, the rotating plate (19) is an arc-shaped structure, the rotating plate (19) is located between the two groups of rectangular plates (17), and the two groups of rectangular plates (17) are fixedly connected to the mounting seat (1).

6. The smoke alarm that is easy to assemble and disassemble according to claim 1, characterized in that: The cleaning structure (3) is in contact with the connecting structure (23) but is not fixed thereto; the connecting structure (23) and the extension tube (8) are both located in the middle of the cleaning structure (3).

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