Battery power supply type smoke alarm

Abstract

The utility model discloses a battery power supply type smoke alarm which comprises a bottom box, a box cover, a middle box body, a smoke alarm circuit and an anti-falling block. A box cover is buckled on the bottom box, an installation space is formed after the box cover and the bottom box are buckled, and a smoke alarm circuit is installed in the installation space; the smoke alarm circuit comprises a circuit board, an alarm monitoring execution circuit and a battery, the circuit board is provided with the alarm monitoring execution circuit, and the alarm monitoring execution circuit is powered by the battery; the middle box body is located in the bottom box and the box cover and positioned by the box cover and the bottom box, and a circuit board is installed on the side, close to the box cover, of the middle box body. The battery power supply type smoke alarm solves the problems that in the prior art, a battery needs to be installed on the side, away from the alarm monitoring execution circuit, of the circuit board, and the circuit board is not provided with a component for positioning the battery.

Description

Technical Field

[0001] The utility model relates to an alarm, in particular to a battery-powered smoke alarm. Background Art

[0002] The Chinese patent discloses a smoke detector (9V) with application number CN202130537472.1, which is an appearance patent. As can be seen from the figure, the smoke detector (9V) includes: a bottom box and a box cover, the bottom box is buckled with the box cover, and the box cover and the bottom box are buckled to form an installation space, and the installation space is used to install the smoke alarm circuit.

[0003] The smoke alarm circuit includes: a circuit board, an alarm monitoring execution circuit and a battery. The circuit board is provided with an alarm monitoring execution circuit, which needs to be powered by a battery. The circuit board is installed in the box cover and the bottom box, but for convenience, the battery needs to be installed in the bottom box, and the position of the battery is convenient for disassembly and installation.

[0004] In the prior art, the battery is installed on the side of the circuit board away from the alarm monitoring execution circuit, but there is no component for positioning the battery on the circuit board, resulting in unstable battery positioning. Utility Model Content

[0005] The utility model provides a battery-powered smoke alarm, which solves the problem in the prior art that the battery needs to be installed on a side of a circuit board away from an alarm monitoring execution circuit and there is no component for positioning the battery on the circuit board.

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

[0007] The utility model discloses a battery-powered smoke alarm, comprising: a bottom box, a box cover, an intermediate box body, a smoke alarm circuit and an anti-dropping block; the bottom box is buckled with a box cover, the box cover and the bottom box are buckled to form an installation space, and the smoke alarm circuit is installed in the installation space; the smoke alarm circuit comprises: a circuit board, an alarm monitoring execution circuit and a battery, the circuit board is provided with an alarm monitoring execution circuit, and the alarm monitoring execution circuit is powered by the battery; the intermediate box body is located in the bottom box and the box cover, and the intermediate box body is positioned by the box cover and the bottom box, the circuit board is installed on one side of the intermediate box body close to the box cover, the side of the circuit board is protruded to form an installation groove body, the installation groove body forms a placement space, the opening of the placement space is located on the side of the intermediate box body away from the box cover, the placement space is used to install the battery, and an anti-dropping block is detachably connected to the intermediate box body, and the anti-dropping block limits the battery from being separated from the placement space.

[0008] Preferably, a snap-in seat and a guide column are provided on the side of the middle box body facing away from the box cover, the snap-in seat surrounds the outside of the guide column, the guide column is used to extend into the anti-slip block, the anti-slip block can rotate relative to the guide column, and a snap-in foot is provided on the edge of the anti-slip block, and the snap-in foot can be snapped into the snap-in seat after rotating around the guide column.

[0009] Preferably, the anti-slip block is a block-shaped structure, and a first clamping foot is formed on the bottom box, and the first clamping foot limits the rotation of the anti-slip block.

[0010] Preferably, the guide column is formed with a notch, into which the second clamping foot extends, and the second clamping foot limits the rotation of the guide column and the intermediate box body.

[0011] Preferably, the snap-in seat is an L-shaped structure, and a snap-in groove for the snap-in foot to snap into is formed between the snap-in seat and the wall of the middle box body.

[0012] Preferably, the middle box body is provided with a through hole, and the through hole is aligned with the snap-in groove.

[0013] Preferably, a clamping arm is formed at the mounting groove, the clamping arm is used for the alarm battery, and the clamping arm is elastic.

[0014] Preferably, one end of the clamping arm is fixed to the mounting slot body, and there are opening gaps between the clamping arm and the mounting slot body and the middle slot body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] First, when the box cover and the bottom box are buckled, the middle box body is buckled between the box cover and the bottom box, a first step is formed on the inner wall of the box cover, a second step is formed on the inner wall of the bottom box, and the outer edge of the middle box body is stuck between the first step and the second step, thereby realizing the positioning of the middle box body and preventing the middle box body from shaking between the bottom box and the box cover. Then, the installation position of the mounting slot body and the circuit board is designed to be side by side, so that the circuit on the circuit board and the mounting slot body can be arranged side by side in the same space, reducing the height of the entire battery-powered smoke alarm. Finally, the anti-dropping block is designed to be detachably connected to the middle box body, and the anti-dropping block seals the installed battery in the middle box body, so that the battery will not fall out at will when the box cover and the bottom box are buckled.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Exploded view of a battery powered smoke alarm without a back box.

[0019] Figure 2 It is a schematic diagram of the structure at the first side of the middle box body.

[0020] Figure 3 It is a schematic diagram of the structure at the second side of the middle box body when there is no anti-dropping block.

[0021] Figure 4 It is a schematic diagram of the structure at the second side of the middle box body when there is an anti-dropping block.

[0022] Figure numerals: box cover 2, middle box body 3, guide column 30, guide column 31, notch 32, clamping arm 33, through hole 34, mounting groove 35, snap-in seat 36, anti-slip block 4, snap-in foot 40, circuit board 51, battery 52. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0024] like Figures 1 to 4 As shown, the utility model discloses a battery-powered smoke alarm, comprising: a bottom box (not shown), a box cover 2, an intermediate box body 3, a smoke alarm circuit and an anti-detachment block 4; the bottom box is buckled with a box cover 2, and the box cover 2 and the bottom box are buckled to form an installation space, in which the smoke alarm circuit is installed; the smoke alarm circuit comprises: a circuit board 51, an alarm monitoring execution circuit and a battery 52, the circuit board 51 is provided with an alarm monitoring execution circuit, and the alarm monitoring execution circuit is powered by the battery 52; the intermediate box body 3 is located in the bottom box and the box cover 2, and the intermediate box body 3 is positioned by the box cover 2 and the bottom box, the circuit board 51 is installed on one side of the intermediate box body 3 close to the box cover 2, the side of the circuit board 51 protrudes to form an installation groove 35, the installation groove 35 forms a placement space, the opening of the placement space is located on the side of the intermediate box body 3 away from the box cover 2, the placement space is used to install the battery 52, and an anti-detachment block 4 is detachably connected to the intermediate box body 3, and the anti-detachment block 4 limits the battery 52 from being separated from the placement space.

[0025] The middle box body 3 is provided with a snap-in seat 36 and a guide column 3130 on the side facing away from the box cover 2. The snap-in seat 36 surrounds the outside of the guide column 3130. The guide column 3130 is used to extend into the anti-slip block 4. The anti-slip block 4 can rotate relative to the guide column 3130. The edge of the anti-slip block 4 is provided with a snap-in foot 40. The snap-in foot 40 can snap into the snap-in seat 36 after rotating around the guide column 3130. How the anti-slip block 4 is detachably connected to the middle box body 3 is realized. When installing, the anti-slip block 4 is first buckled on the guide column 3130, and then the anti-slip block 4 is rotated so that the snap-in foot 40 on the anti-slip block 4 is snapped into the snap-in seat 36. The snap-in seat 36 limits the anti-slip block 4 from being separated from the middle box body 3, thereby positioning the battery 52 to prevent the battery 52 from falling at will before the bottom box and the box cover 2 are buckled.

[0026] The anti-dropping block 4 is a block structure, and a first clamping foot (not shown) is formed on the bottom box, and the first clamping foot limits the rotation of the anti-dropping block 4. The first clamping foot limits the anti-dropping block 4 from rotating relative to the bottom box at will, so as to realize the positioning of the anti-dropping block 4.

[0027] The guide column 3130 is formed with a notch 32, into which the second clamping foot (not shown) is inserted, and the second clamping foot limits the rotation of the guide column 3130 and the middle box body 3. The cooperation between the notch 32 and the second clamping foot limits the arbitrary rotation of the middle box body 3 relative to the bottom box, and then locates the relative position between the middle box body 3 and the anti-dropping block 4, prevents the anti-dropping block 4 from falling off randomly due to vibration, etc., and ensures the stability of the relative position between the anti-dropping block 4 and the middle box body 3.

[0028] The snap-in seat 36 is an L-shaped structure, and a snap-in groove for the snap-in foot 40 to snap in is formed between the snap-in seat 36 and the wall of the middle box body 3 .

[0029] The middle box body 3 is provided with a through hole 34, which is aligned with the snap-in slot. The snap-in seat 36 is designed in shape so that the snap-in slot can be formed, and the snap-in slot cooperates with the through hole 34, so that the middle box body 3 can be demoulded together with the snap-in seat 36 when it is made in the mold.

[0030] A clamping arm 33 is formed at the installation slot 35 , and the clamping arm 33 is used to alarm the battery 52 . The clamping arm 33 is elastic and pre-positions the battery 52 .

[0031] One end of the clamping arm 33 is fixed to the mounting groove 35, and there are openings between the clamping arm 33 and the mounting groove 35 and the intermediate groove, so that the clamping arm 33 can be demoulded together with the intermediate box body 3 when the intermediate box body 3 is made in the mold.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A battery powered smoke alarm, characterized in that: include: A bottom box, a box cover (2), an intermediate box body (3), a smoke alarm circuit and an anti-drop block (4); A box cover (2) is buckled onto the bottom box, and an installation space is formed when the box cover (2) and the bottom box are buckled together, and a smoke alarm circuit is installed in the installation space; The smoke alarm circuit comprises: a circuit board (51), an alarm monitoring execution circuit and a battery (52); the circuit board (51) is provided with an alarm monitoring execution circuit, and the alarm monitoring execution circuit is powered by the battery (52); The middle box body (3) is located inside the bottom box and the box cover (2), and the middle box body (3) is positioned by the box cover (2) and the bottom box. A circuit board (51) is installed on the side of the middle box body (3) close to the box cover (2). A mounting groove (35) is formed by a protrusion next to the circuit board (51). The mounting groove (35) forms a placement space. The opening of the placement space is located on the side of the middle box body (3) away from the box cover (2). The placement space is used to install a battery (52). An anti-detachment block (4) is detachably connected to the middle box body (3). The anti-detachment block (4) limits the battery (52) from detaching from the placement space.

2. The battery-powered smoke alarm according to claim 1, characterized in that: A snap-in seat (36) and a guide column (31) (30) are arranged on the side of the middle box body (3) facing away from the box cover (2); the snap-in seat (36) surrounds the outside of the guide column (31) (30); the guide column (31) (30) is used to extend into the anti-slip block (4); the anti-slip block (4) can rotate relative to the guide column (31) (30); a snap-in foot (40) is arranged on the edge of the anti-slip block (4); the snap-in foot (40) can snap into the snap-in seat (36) after rotating around the guide column (31) (30).

3. The battery-powered smoke alarm according to claim 2, characterized in that: The anti-slip block (4) is a block-shaped structure, and a first clamping foot is formed on the bottom box, and the first clamping foot limits the rotation of the anti-slip block (4).

4. The battery-powered smoke alarm according to claim 3, characterized in that: The guide column (31) (30) is formed with a notch (32), and the notch (32) is for the second clamping foot to extend into, and the second clamping foot limits the rotation of the guide column (31) (30) and the middle box body (3).

5. The battery-powered smoke alarm according to claim 4, characterized in that: The snap-in seat (36) is an L-shaped structure, and a snap-in groove for the snap-in foot (40) to snap in is formed between the snap-in seat (36) and the wall of the middle box body (3).

6. The battery-powered smoke alarm according to claim 5, characterized in that: The middle box body (3) is provided with a through hole (34), and the through hole (34) is aligned with the snap-in groove.

7. The battery-powered smoke alarm according to any one of claims 1 to 6, characterized in that: A clamping arm (33) is formed at the installation groove (35), and the clamping arm (33) is used for the alarm battery (52), and the clamping arm (33) is elastic.

8. The battery-powered smoke alarm according to claim 7, characterized in that: One end of the clamping arm (33) is fixed to the installation slot body (35), and there are opening gaps between the clamping arm (33) and the installation slot body (35) as well as the middle slot body.

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