Buzzer with anti-static interference function

Abstract

The utility model discloses a buzzer with an anti-static interference function, which relates to the field of buzzers and comprises a base, a sounding element is embedded in the top of the base, a mounting cover is movably arranged above the base, the bottom wall of the mounting cover is fixedly connected with an arc-shaped threaded plate, the arc-shaped threaded plate is in threaded connection with a threaded groove, and the bottom wall of the mounting cover is fixedly connected with the base. The threaded groove is disposed inside the base. According to the utility model, the mounting cover is twisted, the annular block is rotatably connected with the annular groove, and the limiting block is movably connected with the limiting vertical groove, so that the whole limiting assembly does not influence the up-down movement of the arc-shaped threaded plate, the mounting cover is twisted to move upwards, a gap is formed between the mounting cover and the base, and the overhauling operation of the sounding element can be realized; meanwhile, after the bottom wall of the limiting vertical groove is in contact with the limiting block along with the movement of the arc-shaped threaded plate, the mounting cover cannot be twisted, so that the mounting cover and the base cannot be mounted in a falling-off manner, and the situation that the buzzer cannot be used due to the fact that the mounting cover is lost subsequently is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of buzzer, concretely relates to a buzzer with anti-static interference function. BACKGROUND

[0002] The buzzer is an electronic device capable of emitting a buzzing sound, which produces vibration through an internal piezoelectric sheet or electromagnetic coil, thereby driving air vibration to produce sound. The buzzer usually works in an audio frequency range, i.e. between 20 Hz and 20 kHz, covering most of the frequency range audible to the human ear. It has the functions of sound and warning, and is usually used for alarm or device prompt, with the characteristics of small size and light weight.

[0003] The existing buzzer has the following problems when in use: the external shell of the existing buzzer is usually assembled from two or more shells. When the two or more shells are disassembled for maintenance of the internal elements of the buzzer, the multiple combined shells are more likely to be lost, which increases the use cost of the buzzer.

[0004] Therefore, it is necessary to invent a buzzer with anti-static interference function to solve the above problems. SUMMARY

[0005] The utility model aims at providing a buzzer with anti-static interference function to solve the problem of the external shell of the existing buzzer being assembled from two or more shells, which makes the multiple combined shells more likely to be lost when the two or more shells are disassembled for maintenance of the internal elements of the buzzer, thus increasing the use cost of the buzzer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a buzzer with anti-static interference function, comprising a base, a sound-producing element embedded on the top of the base, an installation cover movably arranged above the base, an arc-shaped threaded plate fixedly connected to the bottom wall of the installation cover, and the arc-shaped threaded plate being threadedly connected with a threaded groove, the threaded groove being arranged inside the base, further comprising:

[0007] A limiting assembly is arranged inside the threaded groove, comprising an annular groove, an annular block rotatably connected inside the annular groove, and a limiting block fixedly connected to the inner wall of the annular block, the limiting block being slidably connected with a limiting vertical slot reserved inside the arc-shaped threaded plate, to ensure that the installation cover and the base are not detached.

[0008] Preferably, the bottom wall of the mounting cover can be attached to the top wall of the base, and the mounting cover is internally provided with a mounting groove, which is in a cylindrical shape, and the outer diameter of the mounting groove is larger than that of the cylindrical sound-producing element, and the height of the mounting groove is larger than that of the cylindrical sound-producing element, so as to ensure the closed installation of the base and the mounting cover without affecting the sound production of the sound-producing element.

[0009] Preferably, the two arc-shaped threaded plates are symmetrically arranged with the center axis of the mounting cover as the symmetric axis, and both of the arc-shaped threaded plates are in threaded connection with the threaded groove, so as to ensure the firmness of the connection between the base and the mounting cover.

[0010] Preferably, the top of the threaded groove is open, and the bottom of the threaded groove is closed, and the height of the threaded groove is larger than that of the arc-shaped threaded plate.

[0011] Preferably, the outer wall of the annular block is attached to the inner wall of the annular groove to achieve rotational connection, and the inner end wall of the annular block has a gap with the opening position of the annular groove, so as to ensure the stability of the rotational connection between the annular block and the annular groove.

[0012] Preferably, the two limiting blocks are symmetrically arranged with the center axis of the annular block as the symmetric axis, and after the bottom wall of the limiting vertical groove is contacted with the limiting block due to the movement of the arc-shaped threaded plate, the mounting cover cannot be twisted again, so as to ensure the non-falling installation of the mounting cover and the base.

[0013] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0014] The utility model discloses a mounting cover, because the annular block and the annular groove are in rotational connection, and the limiting block and the limiting vertical groove are in movable connection, so that the whole limiting assembly does not affect the up-down movement of the arc-shaped threaded plate, the mounting cover is twisted to move upward and has a gap with the base, the maintenance operation of the sound-producing element can be realized, and after the bottom wall of the limiting vertical groove is contacted with the limiting block due to the movement of the arc-shaped threaded plate, the mounting cover cannot be twisted again, so as to ensure the non-falling installation of the mounting cover and the base, avoid the loss of the subsequent mounting cover to make the buzzer unable to use, and reduce the overall use cost of the buzzer. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0016] Figure 1The overall structure perspective view of the utility model;

[0017] Figure 2 The base and the mounting cover unfolding structure first perspective view explosion drawing of the utility model;

[0018] Figure 3 The base and the mounting cover unfolding structure second perspective view explosion drawing of the utility model;

[0019] Figure 4 The base and the mounting cover unfolding structure second perspective view explosion drawing of the utility model;

[0020] Figure 5 The base (partial cutaway state) and the limiting assembly unfolding structure explosion drawing of the utility model.

[0021] Mark explanation:

[0022] 1, base, 2, mounting cover, 3, sound emitting element, 4, mounting groove, 5, arc thread plate, 6, thread groove, 7, limiting assembly, 701, annular groove, 702, annular block, 703, limiting block, 704, limiting vertical slot. Specific implementation

[0023] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below with the drawings.

[0024] The utility model provides a buzzer with anti-static interference function as Figures 1-5 The utility model discloses a buzzer with anti-static interference function, which comprises a base 1, a sound emitting element 3 is embedded on the top of the base 1, a mounting cover 2 is movably arranged above the base 1, the bottom wall of the mounting cover 2 is fixedly connected with an arc thread plate 5, the arc thread plate 5 is in threaded connection with a thread groove 6, the thread groove 6 is arranged in the base 1, the firmness of the threaded connection between the base 1 and the mounting cover 2 is ensured, and the utility model further comprises:

[0025] A limiting assembly 7 is arranged in the thread groove 6, an annular groove 701 is arranged in the limiting assembly 7, an annular block 702 is rotatably connected in the annular groove 701, the inner wall of the annular block 702 is fixedly connected with a limiting block 703, the limiting block 703 is in sliding connection with a limiting vertical slot 704 reserved in the arc thread plate 5, and the mounting cover 2 and the base 1 are not separated from each other.

[0026] The bottom wall of the mounting cover 2 can be attached to the top wall of the base 1, a mounting groove 4 is formed in the mounting cover 2, the mounting groove 4 is in a cylindrical shape, the outer diameter of the mounting groove 4 is larger than the outer diameter of the cylindrical sound emitting element 3, the height of the mounting groove 4 is larger than the height of the cylindrical sound emitting element 3, the base 1 and the mounting cover 2 are closed and mounted, and the sound emitting work of the sound emitting element 3 is not affected.

[0027] The two arc-shaped threaded plates 5 are symmetrically arranged with the center axis of the mounting cover 2 as the symmetry axis, and both of the arc-shaped threaded plates 5 are in threaded connection with the threaded groove 6, thereby ensuring the firmness of the connection between the base 1 and the mounting cover 2.

[0028] The top of the threaded groove 6 is open, the bottom of the threaded groove 6 is closed, and the height of the threaded groove 6 is greater than the height of the arc-shaped threaded plate 5.

[0029] The outer wall of the annular block 702 is in close contact with the inner wall of the annular groove 701 and is rotationally connected, and the inner wall of the annular block 702 has a gap with the opening position of the annular groove 701, thereby ensuring the stability of the rotational connection between the annular block 702 and the annular groove 701.

[0030] The two limiting blocks 703 are symmetrically arranged with the center axis of the annular block 702 as the symmetry axis. When the bottom wall of the limiting vertical groove 704 is in contact with the limiting block 703 due to the movement of the arc-shaped threaded plate 5, the mounting cover 2 cannot be twisted again, thereby ensuring that the mounting cover 2 is not detached from the base 1, avoiding the disassembly and loss of the buzzer shell, and reducing the use cost of the buzzer.

[0031] Working principle: when the buzzer with anti-static interference function is used, the mounting cover 2 is twisted first, the arc-shaped threaded plate 5 fixedly connected at the bottom of the mounting cover 2 is in threaded connection with the threaded groove 6, thereby ensuring that the twisting of the mounting cover 2 connects the mounting cover 2 with the base 1, and the limiting block 703 fixedly connected to the inner wall of the annular block 702 is in movable connection with the limiting vertical groove 704, and the annular block 702 is in rotational connection with the annular groove 701, thereby the whole limiting assembly 7 does not affect the movement of the arc-shaped threaded plate 5 when the arc-shaped threaded plate 5 rotates and moves downward, and the bottom wall of the mounting cover 2 is in contact with the top wall of the base 1 after the whole buzzer is installed, the mounting cover 2 is made of anti-static plastic, thereby ensuring that the whole buzzer resists static interference when in use, and prolonging the service life of the buzzer.

[0032] Meanwhile, when the sound producing element 3 needs to be maintained and repaired, the mounting cover 2 is twisted in the reverse direction according to the above operation steps, the mounting cover 2 and the arc-shaped threaded plate 5 move upward, thereby there is a gap between the mounting cover 2 and the base 1 for the maintenance work of the sound producing element 3, and the limiting block 703 is in sliding connection with the limiting vertical groove 704, and when the bottom wall of the limiting vertical groove 704 is in contact with the limiting block 703 due to the movement of the arc-shaped threaded plate 5, the mounting cover 2 cannot be twisted again, thereby ensuring that the mounting cover 2 is not detached from the base 1, avoiding the loss of the mounting cover 2, and making the buzzer unusable.

[0033] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A buzzer with anti-static interference function, comprising a base (1), characterized in that, The base (1) has a sound-producing element (3) embedded in its top. A mounting cover (2) is movably disposed above the base (1), and an arc-shaped threaded plate (5) is fixedly connected to the bottom wall of the mounting cover (2). The arc-shaped threaded plate (5) and the threaded groove (6) are threadedly connected. The threaded groove (6) is disposed inside the base (1). The base (1) also includes: The limiting component (7) has an annular groove (701) connected inside the threaded groove (6), and an annular block (702) is rotatably connected inside the annular groove (701). The inner wall of the annular block (702) is fixedly connected to a limiting block (703), and the limiting block (703) is slidably connected to the limiting vertical groove (704) reserved inside the arc-shaped threaded plate (5).

2. The buzzer with anti-static interference function according to claim 1, characterized in that, The bottom wall of the mounting cover (2) can fit against the top wall of the base (1), and the mounting cover (2) has an installation groove (4) inside. The installation groove (4) is cylindrical, and the outer diameter of the installation groove (4) is larger than the outer diameter of the columnar sound element (3). The height of the installation groove (4) is larger than the height of the columnar sound element (3).

3. The buzzer with anti-static interference function according to claim 1, characterized in that, The number of arc-shaped threaded plates (5) is two, and the two arc-shaped threaded plates (5) are symmetrically arranged with reference to the central axis of the mounting cover (2), and both arc-shaped threaded plates (5) are threadedly connected to the threaded groove (6).

4. The buzzer with anti-static interference function according to claim 1, characterized in that, The top of the threaded groove (6) is open, and the bottom of the threaded groove (6) is closed. The height of the threaded groove (6) is greater than the height of the arc-shaped threaded plate (5).

5. The buzzer with anti-static interference function according to claim 1, characterized in that, The outer wall of the annular block (702) is attached to the inner wall of the annular groove (701) to achieve a rotatable connection, and there is a gap between the inner end wall of the annular block (702) and the opening position of the annular groove (701).

6. The buzzer with anti-static interference function according to claim 1, characterized in that, The limiting block (703) is provided in two parts, and the two limiting blocks (703) are symmetrically arranged with reference to the central axis of the annular block (702).

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