Anti-theft method for well cover and anti-theft well cover therewith
An anti-theft method and manhole cover technology, applied in the application of locks, non-mechanical transmission-operated locks, artificial islands, etc., can solve problems that threaten people's life and property safety, loss of pipeline manhole covers, economic losses, etc.
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Embodiment 1
[0029] Example 1: Electromagnetic anti-theft lock manhole cover controlled by power supply
[0030] From Figure 1-7 As can be seen in the figure, the present invention is made up of well cover 4, well seat 5. Two inward cylindrical pins 9 are arranged on the inwall of well seat 5 circumferences, and these cylindrical pins 9 are placed horizontally, and one end is fixed on the inwall of well seat 5, and the other end faces the side wall of well cover 4. It also has an electromagnet 2, the electromagnet 2 is outside the inner wall circumference of the well base 5, and there is a horizontal hole on the inner wall of the well base 5 to allow the dead bolt 3 of the electromagnet 2 to pass through, and there are two or three pin holes on the circumferential side of the well cover 4 8. The positions of the pin holes 8 correspond to the cylindrical pin 9 and the dead bolt 3 of the electromagnet 2 respectively, and the diameter and length of the pin hole 8 match the cylindrical pin 9...
Embodiment 2
[0031] Example 2: Anti-theft manhole cover controlled by power supply and coding
[0032] Figure 1-7 It also shows that the anti-theft well cover also has an electrical box 1, the electrical box 1 is fixed on the outside of the inner wall of the well base 5, the upper and lower surfaces of the box are respectively flush with the upper and lower end faces of the well base 5, and the electromagnet 2 is installed in the electrical box 1 Inside, there is also an electromagnet connection control device in the electrical box 1, the external power supply jack 10 of the electromagnet 2 and the signal input jack 11 of the control device are fixed on the well base 5, and one end of the control device is connected to the electromagnet 2. The other end is connected with the external power supply jack 10 and the signal input jack 11. The lower surface of the electrical box 1 is an electrical box cover 6, which can be opened for installation and maintenance of the electromagnet 2 and the ...
Embodiment 3
[0040] Embodiment 3: Anti-theft manhole cover controlled by power supply and wireless transmission code
[0041] The decoding controller is a hand-held remote control with a signal transmitting circuit. The signal transmitting circuit is added at the last stage of the signal output part, and the signal receiving part is added at the front stage of the signal receiving part. There is no signal input jack on the well base, only the power plug The signal input part can be divided into two separate devices, the power supply part and the signal transmitting part. When in use, insert the power plug into the power jack on the well base, and then send signals through the hand-held remote control to control the attraction of the electromagnet. The signal transmitting circuit and the signal receiving circuit added in this embodiment are mature prior art and can be realized completely, and the design of this structure should also be within the scope of protection of the present invention...
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