Position locator

1. A position locator, comprising,

a shell with a first resonant chamber, a second resonant chamber, a buzzer element, a main board and a power supply

wherein the first resonant chamber is located above the second resonant chamber located below,

wherein the buzzer element separates the first resonant chamber and the second resonant chamber,

wherein the main board is connected to the buzzer element for controlling the position locator power on and off,

wherein the power supply is connected to the main board for supplying power to the main board,

wherein a central part of the buzzer element is provided with a light-transmitting through-hole and above the light-transmitting through-hole is a light source controlled by the main board, and at the bottom of the second resonant chamber is a light-transmitting channel connected to the outside, light from said light source is projected outward through the light-transmitting through-hole, the second resonant chamber and the light-transmitting channel in turn.

2. A position locator as in claim 1 , wherein the first resonance chamber and second resonance chamber form a large space and a small space.

3. A position locator as in claim 1 , wherein a light-transmitting projection part is installed in the light-transmitting channel, the projection part is provided with a predetermined projection pattern, wherein the light source is projected on the projection part to project the projection pattern outwardly.

4. A position locator as in claim 3 , wherein the shell or projection part is further provided with an audible through-hole for easy audibility.

5. A position locator as in claim 3 , wherein the projection part is provided with a light-transmitting column extending into or below the light-transmitting through-hole.

6. A position locator as in claim 1 , wherein the outer circumference diameter of the buzzer element is between 6.5 mm and 50 mm, and the thickness of said buzzer element is between 0.15 mm and 0.85 mm.

7. A position locator as in claim 6 , wherein the buzzer element further comprises a substrate and a conductive ceramic medium set on the substrate.

8. A position locator as in claim 7 , wherein the substrate is selected from the group consisting of copper, stainless steel, nickel alloy, iron and any combination thereof.

9. A position locator as in claim 1 , wherein the main board is mounted in the shell and located above the buzzer element.

10. A position locator as in claim 1 , wherein the main board and buzzer element are connected to each other by means of a thimble or a flexible folding foot.

11. A position locator as in claim 1 , wherein the shell includes a lower shell and an upper shell.

12. A position locator as in claim 11 , wherein the upper surface of the upper shell is provided with a recessed battery compartment, wherein the power supply device is a button battery and is installed in the battery compartment, and the top of the battery compartment is also covered with a cover.

13. A position locator as in claim 1 , wherein the main board is also provided with a communication module to communicate with other devices.

14. A position locator as in claim 4 , wherein the single hole diameter of the sounding through hole for facilitating sounding does not exceed 10 mm.

15. A position locator as in claim 1 , wherein the second resonance chamber is in the shape of a funnel with a large top and a small bottom.

16. A position locator as in claim 1 , wherein the second resonant chamber and the first resonant chamber form a funnel-shaped air circulation system.

17. A position locator as in claim 1 , wherein the diameter of the light-transmitting through-hole is not exceed 6 mm.