Sucker with alarm function
A suction cup and functional technology, applied in the field of suction cups with alarm function, can solve the problems that cannot be found by people
Inactive Publication Date: 2019-12-20
覃玲
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- Application Information
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Problems solved by technology
[0008] The purpose of the present invention is to provide a suction cup with an alarm function to solve the problem that people cannot find it in time after the early warning effect of the vacuum suction cup in the prior art is generated.
Method used
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Comparison scheme
Effect test
Embodiment 3
[0049] Embodiment 3 of the suction cup with alarm function of the present invention differs from Embodiment 1 in that the travel switch is a radially movable extruding block assembled on the casing, and the extruding block is provided with two electrically connected contacts. point, the piston rod is arranged with an arc-shaped ring platform, and when the arc-shaped ring platform moves with the piston rod, it pushes the extrusion block to make the extrusion block move radially. When the extrusion block moves radially, the two contacts on it are in contact with the The electrodes on the circuit board are connected, the piston rod is at the conductive position, and the alarm system gives an alarm; when the arc-shaped ring platform is separated from the extrusion block, the contacts of the extrusion block are disconnected from the electrodes on the circuit board, and the piston rod is at the off-potential.
[0050] Embodiment 4 of the sucker with alarm function of the present inve...
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The invention relates to the field of suckers, and particularly relates to a sucker with an alarm function. The sucker comprises a sucker body, a top cover, an outer shell and a piston rod, wherein the piston rod is slidably fitted in the outer shell in a sealing mode, a negative pressure cavity is formed between one end of the piston rod and the bottom wall of the outer shell, the negative pressure cavity is in communication with an inner cavity of the sucker body, an elastic piece is arranged between the piston rod and the outer shell in a top pressing mode, the sucker further comprises a travel switch and an alarm system electrically connected with the travel switch, and the piston rod has a conductive position and a power-off position, the conductive position is used for triggering thetravel switch so as to communicate with the alarm system in an electrically conducting mode and the power-off position is used for getting away from the travel switch in the travel of the piston rodso as to enable the alarm system to be powered off. When the piston rod triggers the travel switch to enable the alarm system to be in conductive communication, a buzzer or an indicator light of the alarm system sends out an alarm signal, the alarm system is powered off when the piston rod leaves the travel switch, the buzzer or the indicator light does not give an alarm, the alarm system activelygives an alarm to the personnel through the form of sound or light, and people can check the air leakage information in time.
Description
technical field [0001] The invention relates to the field of suction cups, in particular to a suction cup with an alarm function. Background technique [0002] In modern society, people often put a luggage rack on the roof of the car to fix bicycles, suitcases and other items on the luggage rack when traveling, but now some models are not equipped with luggage racks on the top, which is not convenient for people to carry luggage. [0003] The authorized announcement number is CN207955503U, and the Chinese utility model patent whose authorized announcement date is 2018.10.12 discloses a car roof luggage rack. The luggage rack includes a main frame. Rod, telescopic arm, strong suction cup and regulating valve. The telescopic rod is set at the four corners of the bottom of the main frame and is fixedly connected with the main frame. The strong suction cup is set at the lower side of the telescopic rod and connected with the telescopic rod. The regulating valve is arranged at ...
Claims
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IPC IPC(8): F16B47/00B60R9/058
CPCB60R9/058F16B47/00
Inventor 覃玲
Owner 覃玲