Electric lifting tripod for automatic laser tracking and measuring system thereof

1 . An electric lifting tripod for laser automatic tracking, comprising a base, a plurality of extendable legs, a suspension assembly, a lifting part, a transmission mechanism and a motor, wherein:

each of the plurality of extendable legs is rotatably connected to the base,

the base comprises an adapter hole therethrough,

the suspension assembly comprises an upper end connected to the base, a lower end, a first internal cavity through the upper and lower ends, a guide protrusion, a first baffle, a second baffle opposite to the first baffle, a line passage between the first and second baffles, and a second opening on sides of the first and second baffles away from the suspension assembly, wherein the adapter hole is connected to the first internal cavity, and the second opening is connected to the line passage,

the lifting part has an upper end that extends above the base through the adapter hole, and is configured to support a laser instrument,

the lifting part has a lower end that extends into the first internal cavity through the adapter hole and is connected to the transmission mechanism,

the transmission mechanism is connected to the motor and comprises a lead screw and nut transmission, wherein the lead screw and nut transmission mechanism includes a rotatable lead screw and a nut, the lead screw is in the suspension assembly, the nut has a threaded hole adapted to mate with the lead screw, the nut is threadedly connected to the lead screw through the threaded hole, the nut is in the first internal cavity and connected to the lifting part, the motor is connected to a lower end of the lead screw and is configured to rotate the lead screw, the guide protrusion is configured to limit rotation of the nut, the nut comprises a limiting groove adapted to the guide protrusion, and the guide protrusion and the limiting groove constitute a first vertically sliding pair, and

the motor is fixed to the lower end of the suspension assembly and is configured to move the lifting part up and down.

2 . The electric lifting tripod of claim 1 , wherein the motor has an output shaft that is coaxial with the lead screw, and the lead screw is coaxial with the suspension assembly.

3 . The electric lifting tripod of claim 1 , wherein the lower end of the lifting part is connected to the nut, and the lifting part and the nut are coaxial.

4 . The electric lifting tripod of claim 3 , wherein the nut comprises a small-diameter collar and a large-diameter collar, wherein each of the small-diameter collar and the large-diameter collar are coaxial with the threaded hole, and the small-diameter collar is insertable into the lower end of the lifting part.

5 . The electric lifting tripod of claim 1 , wherein the lifting part includes an inner cylinder and an outer cylinder connected to the inner cylinder, the inner cylinder and the outer cylinder are coaxial, the inner cylinder or the outer cylinder is connected to the nut, the inner cylinder has an inner diameter larger than the an outer diameter of the lead screw, the lead screw is in the inner cylinder, the inner cylinder is configured to radially limit and constrain the lead screw, and the lower end of the lead screw is connected to the suspension assembly through a bearing.

6 . The electric lifting tripod of claim 5 , wherein:

the outer cylinder and the adapter hole form a second vertically sliding pair.

7 . The electric lifting tripod of claim 5 , wherein the adapter hole includes a guide piece, the outer diameter of the outer cylinder fits the guide piece, and the outer cylinder and the guide piece form a second vertically sliding pair.

8 . The electric lifting tripod of claim 1 , further comprising a shell with a second internal cavity, the shell is suspended below the suspension assembly, the second internal cavity is connected to the first internal cavity, and the motor is in the second internal cavity.

9 . The electric lifting tripod of claim 8 , further comprising a controller inside the shell and connected to the motor, wherein:

the shell has a first opening, a cover adapted to and configured to close the first opening, an installation cavity, and a battery in the installation cavity, configured to power the controller and the motor; and

the shell further comprises an operating component connected to the controller, the operating component being selected from a button, a knob, and a touch screen.

10 . The electric lifting tripod of claim 1 , wherein the guide protrusion is oriented along a length of the suspension assembly.

11 . The electric lifting tripod of claim 1 , wherein:

the first and second baffles are bent inward at the second opening to form a necking.

12 . The electric lifting tripod of claim 1 , wherein the suspension assembly includes a cylindrical outer sleeve, and:

the outer sleeve has (i) an upper end connected to the base and (i) an inside cavity.

13 . The electric lifting tripod of claim 1 , further comprising a gimbal on the lifting part, wherein:

the plurality of legs are evenly distributed along a circumference of the base; and

the suspension assembly includes a cylindrical outer sleeve with a sliding ring outside the outer sleeve, the electric lifting tripod further comprises a support rod rotatably connected to a lower end of each leg, and the support rod is rotatably connected to the sliding ring, wherein sliding the sliding ring extends or retracts the plurality of legs.

14 . The electric lifting tripod of claim 1 , wherein each of the first and second baffles has an inwardly facing flange at the opening to form the necking.

15 . The electric lifting tripod of claim 1 , wherein the suspension assembly includes a cylindrical outer sleeve, the outer sleeve has an upper end and a lower end, the suspension assembly further includes a docking cylinder connected to the lower end of the outer sleeve, the upper end of the outer sleeve is connected to the base, the docking cylinder is connected to the lower end of the outer sleeve by fasteners, the outer sleeve and the docking cylinder together form the inside cavity, and the motor is on the docking cylinder.

16 . A measurement system, comprising

a laser instrument for generating laser light,

a receiver including a processor, a detector for detecting laser light, and a first communication module, the detector and the first communication module being respectively connected to the processor, and

the electric lifting tripod as described in claim 1 , wherein:

the electric lifting tripod further includes a second communication module adapted to the first communication module,

the second communication module is connected to a controller,

the first communication module is communicatively connected to the second communication module, and

the laser instrument is on the electric tripod and configured to adjust a vertical position of the laser instrument.

17 . The measurement system of claim 16 , wherein the first communication module is a first wireless communication module, and the second communication module is a second wireless communication module adapted to the first wireless communication module.

18 . The measurement system of claim 17 , wherein each of the first and second wireless communication modules is one of a Bluetooth module, a Wi-Fi module, a ZigBee module, a LoRa module, an NB-IoT module, a 4G communication module, and a 5G communication module.

19 . The measurement system of claim 16 , wherein the first communication module is a first wired communication module, the second communication module is a second wired communication module adapted to the first wired communication module, and each of the first and second wired communication modules is one of an Ethernet module, a serial communication module, a CAN bus module, and an optical fiber communication module.

20 . The measurement system of claim 16 , wherein the electric lifting tripod further comprises a shell, the controller is within the shell, and the second communication module is within the suspension assembly or the shell.