Piezoelectric active elastic foot type buzzer

Abstract

The utility model relates to the technical field of buzzers, and discloses a piezoelectric active elastic foot type buzzer, which is characterized in that the outer side of a buzzer body is fixedly sleeved with a first limiting ring at the lower end of a threaded section, the outer side of the first limiting ring is connected with a rubber ring, and the outer side of the buzzer body is fixedly connected with a second limiting ring at the top of the threaded section; a limiting assembly is arranged on the second limiting ring; by rotating the rotary knob, the rotary knob moves downwards on the outer side of the shell of the buzzer body, the shell drives the sealing ring to move downwards, the sealing ring abuts against the circuit board where the buzzer body is installed, and the supporting foot welding position of the buzzer body can be sealed through the sealing ring, so that the waterproof effect of the buzzer body is improved; meanwhile, a threaded column is rotated to drive an arc-shaped limiting plate to abut against the upper portion of the sealing ring, in the process, the arc-shaped limiting plate drives a guide column to move on a second limiting ring, the sealing ring is tightly attached to the circuit board, and the sealing effect of the buzzer body is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of buzzers, in particular to a piezoelectric active spring-foot type buzzer. Background Art

[0002] A buzzer is an electronic sounder with an integrated structure. It is powered by a DC voltage and is widely used as a sound-generating device in electronic products such as computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers, etc. According to the different driving principles, buzzers can be divided into active buzzers (containing driving circuits) and passive buzzers (external drive). According to different construction methods, buzzers can be divided into electromagnetic buzzers and piezoelectric buzzers. Active buzzers can make continuous sounds by directly connecting to the rated power supply, while passive buzzers, like electromagnetic speakers, need to be connected to the audio output circuit to make sounds. The working sound-generating principle of an active self-excited buzzer is that the DC power input passes through the amplifying sampling circuit of the oscillation system to generate a sound signal under the action of the resonance device.

[0003] The buzzer is usually installed on a circuit board by welding. There is a gap between the legs of the buzzer and the circuit board. When it is damp, water will enter between the legs of the buzzer and the circuit board, which can easily cause a short circuit in the buzzer and cause the buzzer to malfunction. Therefore, a piezoelectric active spring-foot buzzer is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a piezoelectric active spring-foot type buzzer to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a piezoelectric active spring-foot type buzzer, comprising a buzzer body, wherein a sealing component is arranged on the outer side of the buzzer body;

[0006] The sealing assembly includes a threaded section, a knob and a sealing ring, the threaded section is arranged on the outside of the buzzer body, the knob is connected to the outside of the threaded section through a thread, the sealing ring is fixedly connected to the bottom of the knob, the outside of the buzzer body is located at the lower end of the threaded section and a first limiting ring is fixedly sleeved, the outside of the first limiting ring is connected to a rubber ring, the outside of the buzzer body is located at the top of the threaded section and a second limiting ring is fixedly connected, and a limiting assembly is arranged on the second limiting ring.

[0007] As a further preferred embodiment of the present technical solution: the limiting assembly includes two threaded columns, four guide columns and an arc-shaped limiting plate, two of the threaded columns are movable through the top of the second limiting ring, four of the guide columns are movable through the top of the second limiting ring, and the arc-shaped limiting plate is rotatably connected to the bottom end of the threaded column, wherein two of the guide columns are fixedly connected to the top of the arc-shaped limiting plate.

[0008] As a further preferred embodiment of the present technical solution: the buzzer body comprises a shell and a base, the base is arranged at the bottom of the shell, and a through groove is opened on the outer side of the shell.

[0009] As a further preferred embodiment of the technical solution: a connecting groove is provided on the inner side of the shell, a fixing ring is fixedly connected to the outer side of the base, and the fixing ring is connected to the inside of the connecting groove.

[0010] As a further preferred embodiment of the present technical solution: the threaded column is connected to the inner side of the second limiting ring through a thread, and the guide column is slidably connected to the inside of the second limiting ring.

[0011] As a further preferred embodiment of the present technical solution: one end of the rubber ring abuts against the inner side of the knob.

[0012] As a further preferred embodiment of the technical solution: the buzzer body is provided with supporting feet, and the arc-shaped limiting plate abuts against the outer side of the sealing ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model rotates the knob, and the knob moves downward on the outside of the shell of the buzzer body, and the shell drives the sealing ring to move downward, and the sealing ring contacts the circuit board on which the buzzer body is installed, and the welding position of the support leg of the buzzer body can be sealed by the sealing ring, thereby improving the waterproof effect of the buzzer body; at the same time, the arc-shaped limit plate is driven to contact the top of the sealing ring by rotating the threaded column. During this process, the arc-shaped limit plate drives the guide column to move on the second limit ring, so that the sealing ring fits tightly on the circuit board, further enhancing the sealing effect of the buzzer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2This is a schematic diagram of the bottom structure of the sealing ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the shell of the utility model;

[0018] Figure 4 It is a schematic diagram of the thread segment structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the fixing ring structure of the utility model.

[0020] Explanation of the accompanying drawings: 1. Buzzer body; 2. Threaded section; 3. Knob; 4. Sealing ring; 5. First limiting ring; 6. Rubber ring; 7. Second limiting ring; 8. Threaded column; 9. Guide column; 10. Arc-shaped limiting plate; 11. Shell; 12. Base; 13. Through groove; 14. Connecting groove; 15. Fixed ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0023] Example

[0024] See also Figure 1-5 The utility model provides a technical solution: a piezoelectric active spring-foot type buzzer, comprising a buzzer body 1, and a sealing component is arranged on the outer side of the buzzer body 1.

[0025] By setting a sealing component, the welding position of the support leg of the buzzer body 1 can be sealed, thereby improving the waterproof effect of the buzzer body 1; the sealing component includes a threaded section 2, a knob 3 and a sealing ring 4, the threaded section 2 is arranged on the outside of the buzzer body 1, the knob 3 is connected to the outside of the threaded section 2 by a thread, the sealing ring 4 is fixedly connected to the bottom of the knob 3, the outside of the buzzer body 1 is located at the lower end of the threaded section 2 and is fixedly sleeved with a first limiting ring 5, the outside of the first limiting ring 5 is connected to a rubber ring 6, one end of the rubber ring 6 is in contact with the inner side of the knob 3, and the rubber ring 6 is in contact with the inner side of the knob 3. The ring 6 abuts against the inner side of the knob 3, and can seal the connection part between the knob 3 and the threaded section 2, thereby improving the sealing effect of the buzzer body 1; the outer side of the buzzer body 1 is located at the top of the threaded section 2 and is fixedly connected with a second limiting ring 7, and a limiting component is arranged on the second limiting ring 7; by rotating the knob 3, the outer side of the shell 11 of the buzzer body 1 moves downward, and the shell 11 drives the sealing ring 4 to move downward, and the sealing ring 4 abuts against the circuit board on which the buzzer body 1 is installed, and the welding position of the leg of the buzzer body 1 can be sealed through the sealing ring 4.

[0026] By setting a limit assembly, the sealing effect of the buzzer body 1 can be further enhanced; the limit assembly includes two threaded columns 8, four guide columns 9 and an arc-shaped limit plate 10, two threaded columns 8 are movable through the top of the second limit ring 7, four guide columns 9 are movable through the top of the second limit ring 7, and the arc-shaped limit plate 10 is rotatably connected to the bottom end of the threaded column 8, wherein the two guide columns 9 are fixedly connected to the top of the arc-shaped limit plate 10, the threaded column 8 is connected to the inner side of the second limit ring 7 by threads, and the guide column 9 is slidably connected to the inside of the second limit ring 7, and the buzzer body 1 is provided with a support foot, and the arc-shaped limit plate 10 is in contact with the outer side of the sealing ring 4; by rotating the threaded column 8, the threaded column 8 drives the arc-shaped limit plate 10 to contact the top of the sealing ring 4, and in this process, the arc-shaped limit plate 10 drives the guide column 9 to move on the second limit ring 7, so that the sealing ring 4 fits tightly on the circuit board.

[0027] In order to facilitate the assembly of the buzzer body 1; the buzzer body 1 includes a shell 11 and a base 12, the base 12 is arranged at the bottom of the shell 11, the outer side of the shell 11 is provided with a through groove 13, the inner side of the shell 11 is provided with a connecting groove 14, the outer side of the base 12 is fixedly connected with a fixing ring 15, and the fixing ring 15 is connected to the inside of the connecting groove 14. By setting the connecting groove 14 on the shell 11 and the fixing ring 15 on the base 12, the assembly of the buzzer body 1 can be completed quickly.

[0028] The working principle or structural principle is that the legs of the buzzer body 1 are welded and fixed, and then the knob 3 is rotated so that the knob 3 moves downward on the outside of the shell 11 of the buzzer body 1, and the shell 11 drives the sealing ring 4 to move downward, and the sealing ring 4 contacts the circuit board on which the buzzer body 1 is installed. The leg position of the buzzer body 1 can be sealed by the sealing ring 4, thereby improving the waterproof effect of the buzzer body 1. At the same time, the rubber ring 6 contacts the inner side of the knob 3, and can seal the connection part between the knob 3 and the threaded section 2, thereby improving the sealing effect of the buzzer body 1. At the same time, the threaded column 8 is rotated so that the threaded column 8 drives the arc-shaped limiting plate 10 to contact the top of the sealing ring 4. In this process, the arc-shaped limiting plate 10 drives the guide column 9 to move on the second limiting ring 7, so that the sealing ring 4 is tightly fitted on the circuit board, further enhancing the sealing effect of the buzzer body 1; by setting the connecting groove 14 on the shell 11 and the fixing ring 15 on the base 12, the assembly of the buzzer body 1 can be completed quickly.

[0029] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0030] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0031] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A piezoelectric active spring-type buzzer, comprising a buzzer body (1), characterized in that: A sealing component is provided on the outer side of the buzzer body (1); The sealing assembly comprises a threaded section (2), a knob (3) and a sealing ring (4); the threaded section (2) is arranged on the outside of the buzzer body (1); the knob (3) is connected to the outside of the threaded section (2) by means of a thread; the sealing ring (4) is fixedly connected to the bottom of the knob (3); a first limiting ring (5) is fixedly sleeved on the lower end of the threaded section (2) on the outside of the buzzer body (1); a rubber ring (6) is connected to the outside of the first limiting ring (5); a second limiting ring (7) is fixedly connected to the top of the threaded section (2) on the outside of the buzzer body (1); and a limiting assembly is arranged on the second limiting ring (7).

2. A piezoelectric active spring-type buzzer according to claim 1, characterized in that: The limiting assembly comprises two threaded columns (8), four guide columns (9) and an arc-shaped limiting plate (10), wherein two of the threaded columns (8) are movably inserted through the top of the second limiting ring (7), and four of the guide columns (9) are movably inserted through the top of the second limiting ring (7), and the arc-shaped limiting plate (10) is rotatably connected to the bottom end of the threaded columns (8), wherein two of the guide columns (9) are fixedly connected to the top of the arc-shaped limiting plate (10).

3. The piezoelectric active spring-type buzzer according to claim 1, characterized in that: The buzzer body (1) comprises a shell (11) and a base (12); the base (12) is arranged at the bottom of the shell (11); and a through slot (13) is provided on the outer side of the shell (11).

4. The piezoelectric active spring-type buzzer according to claim 3, characterized in that: A connecting groove (14) is provided on the inner side of the shell (11), and a fixing ring (15) is fixedly connected to the outer side of the base (12), wherein the fixing ring (15) is connected to the inside of the connecting groove (14).

5. The piezoelectric active spring-type buzzer according to claim 2, characterized in that: The threaded column (8) is connected to the inner side of the second limiting ring (7) through a thread, and the guide column (9) is slidably connected to the inside of the second limiting ring (7).

6. The piezoelectric active spring-type buzzer according to claim 1, characterized in that: One end of the rubber ring (6) contacts the inner side of the knob (3).

7. The piezoelectric active spring-type buzzer according to claim 2, characterized in that: The buzzer body (1) is provided with supporting feet, and the arc-shaped limiting plate (10) abuts against the outer side of the sealing ring (4).

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