CN201319254Y

CN201319254Y - Buzzer

Info

Publication number: CN201319254Y
Application number: CNU2008202352503U
Authority: CN
Inventors: 孙维拔
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-17
Filing date: 2008-12-17
Publication date: 2009-09-30
Anticipated expiration: 2018-12-17

Abstract

The utility model discloses a buzzer comprising a surface shell, a bottom cover, two guide pins and a piezo element, which is characterized in that a step supporting the piezo element is arranged in the surface shell, the piezo element is arranged on the step, the two guide pins are respectively arranged on guide pin buckling positions on the surface shell, when one ends of the guide pins are fully fixed on the guide pin buckling positions, the other ends of the guide pins generate the dimension potential difference with the step, thereby the guide pins tightly cling to the piezo element, a buckling groove is arranged in the upper portion of the step of the surface shell, a convex button is arranged on a bottom cover, the buckling groove of the surface shell is mutually complemented with a convex button of the bottom cover to form the reverse buckling, and the buckling groove of the surface shell is buckled with the convex button of the bottom cover into a whole and generates the reverse acting force, thereby the piezo element is locked. The buzzer does not need the gluing technique of glue and the welding technique of brand iron, can reduce the manufacturing period of products, improves the impact-resisting ability of joints between the guide pins and the piezo element, and guarantees the piezo element to be tightly locked in the outer shell and not to loose.

Description

Hummer

Technical field

The utility model relates to a kind of hummer, especially relates to a kind of simple and easy hummer that need not glue technique for sticking and flatiron welding technology.

Background technology

Present hummer on the market, the connected mode of its guide pin and piezo is to adopt welding connecting mode, complex manufacturing, high temperature causes thermal injury to the piezo ceramics during welding, the tie point impact resistance descends, and gets loose and causes the disabler major defect such as occurring tie point when the 1.2M freely falling body easily.In addition, the fixedly employing glue of its piezo of hummer on the market is fixed on the frame mode on the face-piece, the quality of product relies on the glue amount and cooperates the influence of time, production technology is quite complicated, and because glue curing needs a very long cycle, production cycle is extended greatly, and affiliated defective value must improve.

The utility model content

The purpose of this utility model is at above-mentioned deficiency, a kind of hummer is provided, a kind of simple and easy hummer that need not glue technique for sticking and flatiron welding technology especially is provided, the utility model can reduce life cycle of the product, promote the impact resistance of the contact point of guide pin and piezo, and guarantee that piezo can tightly be locked in the shell and do not get loose.

The technical solution of the utility model is as described below: a kind of hummer, form by a face-piece, bottom, two guide pins and a piezo, it is characterized in that, establish the step of a support piezo in the face-piece, piezo is placed on the step, and two guide pins are installed in respectively in the guide pin button bit on the face-piece, when guide pin one end is completely fixed in the guide pin button bit, the other end of guide pin and step produce the size potential difference, thereby guide pin tightly is attached on the piezo.

And the displacement of piezo restriction this moment guide pin, terminal excessive guide pin and the piezo formation direction opposite effect power of making that cooperates that produces with piezo of guide pin, so guide pin can tightly touch piezo, shows good electrical conductivity.

The utility model according to said structure, its feature also is, establish a button bit groove in the top of face-piece step, bottom is provided with protruding button, the protruding button complementary dimensioned of the button bit groove of face-piece and bottom forms left-hand thread, the button bit groove of face-piece and the protruding button of bottom snap together and produce direction opposite effect power, thereby pin piezo.

According to the utility model of said structure, its feature is that also the hummer bottom carries out perforate to be handled, and is provided with more than one hole above.

The utility model according to said structure, its beneficial effect is, the utility model need not glue technique for sticking and flatiron welding technology, can reduce life cycle of the product, promote the impact resistance of the contact point of guide pin and piezo, and the assurance piezo can tightly be locked in the shell and not get loose, and has effectively saved resource.

Description of drawings

Below in conjunction with the drawings and the specific embodiments the utility model is described in detail.

Fig. 1 is an outward appearance skeleton view of the present utility model;

Fig. 2 is the outward appearance skeleton view of another angle of Fig. 1 the utility model;

Fig. 3 is the skeleton view after Fig. 1 the utility model is disassembled;

Fig. 4 is the skeleton view after another angle of Fig. 1 the utility model is disassembled;

Fig. 5 is the skeleton view after another angle of Fig. 1 the utility model is disassembled.

Face-piece in the drawings, 1; 2, piezo; 3, guide pin; 4, bottom; 5, hole; 6, step; 7, guide pin button bit; 8, button bit groove; 9, protruding button.

Embodiment

Shown in Fig. 1,2,3,4,5, hummer of the present utility model, form by a face-piece 1, bottom 4, two guide pins 3 and a piezo 2, it is characterized in that establish the step 6 of a support piezo 2 in the face-piece 1, piezo 2 is placed on the step 6, two guide pins 3 are installed in respectively in the guide pin button bit 7 on the face-piece 1, when guide pin 3 one ends were completely fixed in guide pin button bit 7, the other end of guide pin 3 and step 6 produced the size potential difference, thereby guide pin 3 tightly is attached on the piezo 2.

Specifically, when guide pin 3 one ends are completely fixed in guide pin button bit 7, the other end of guide pin 3 and step 6 produce the size potential difference, and the displacement of piezo 2 restriction guide pins 3 at this moment, 3 excessive cooperations terminal and that piezo 2 produces of guide pin make guide pin 3 and piezo 2 form direction opposite effect power, therefore guide pin 3 can tightly touch piezo 2, shows good electrical conductivity.

Shown in Fig. 3,4,5, establish a button bit groove 8 in the top of face-piece step 6, bottom 4 is provided with protruding button 9, protruding button 9 complementary dimensioned of the button bit groove 8 of face-piece 1 and bottom 4 form left-hand thread, the button bit groove 8 of face-piece 1 and the protruding button 9 of bottom 4 snap together and produce direction opposite effect power, thereby pin piezo 2.

Shown in Fig. 1,3,4,5, hummer bottom 4 carries out perforate to be handled, and is provided with more than one hole 5 above.

Claims

1, a kind of hummer, form by a face-piece (1), a bottom (4), two guide pins (3) and a piezo (2), it is characterized in that, establish the step (6) of a support piezo (2) in the face-piece (1), piezo (2) is placed on the step (6), two guide pins (3) are installed in respectively in the guide pin button bit (7) on the face-piece (1), when guide pin (3) one ends are completely fixed in guide pin button bit (7), the other end of guide pin (3) and step (6) produce the size potential difference, thereby guide pin (3) tightly is attached on the piezo (2).

2, hummer according to claim 1, its feature also is, establish a button bit groove (8) in the top of face-piece step (6), bottom (4) is provided with protruding button (9), protruding button (9) complementary dimensioned of the button bit groove (8) of face-piece (1) and bottom (4) forms left-hand thread, the button bit groove (8) of face-piece (1) and the protruding button (9) of bottom (4) snap together and produce direction opposite effect power, thereby pin piezo (2).

3, hummer according to claim 1, its feature are that also hummer bottom (4) carries out perforate to be handled, and is provided with more than one hole (5) above.