CLAW CRANE STRUCTURE

Abstract

A claw crane structure includes a main body, a coil being provided therein, a bottom of the main body being provide with a clamping claw coupled pivotally to a standing tube extended inside the coil, allowing the clamping claw to be clamped inward or expanded outward according to the rise and fall of the standing tube inside the coil, characterized in that a PC circuit board relatively above the coil is provide on the main body, both ends of the coil are respectively in electric connection with two coil contacts provided on the PC circuit board; the main body further comprises a winding wire for provision of electric energy, two terminals thereof are similarly in electric connection with two winding wire contacts provided on the PC circuit board, each pair of the coil contact and winding wire contact are in electric connection with each other.

Claims

1. A claw crane structure, comprising a main body, a coil being provided therein, a bottom of said main body being provide with a clamping claw coupled pivotally to a standing tube extended inside said coil, allowing said clamping claw to be clamped inward or expanded outward according to the rise and fall of said standing tube inside said coil, characterized in that a PC circuit board relatively above said coil is provide on said main body, both ends of said coil are respectively in electric connection with two coil contacts provided on said PC circuit board; said main body further comprises a winding wire for provision of electric energy, two terminals thereof are similarly in electric connection with two winding wire contacts provided on said PC circuit board, each pair of said coil contact and winding wire contact are in electric connection with each other, so that electric energy provided by said winding wire can be input into said coil through said PC circuit board to power on said coil to generate a magnetic field.

2. The structure according to claim 1, wherein said both ends of said coil are in electric connection with a lower side of said PC circuit board, and said terminals of said winding wire a upper side of said PC circuit board.

3. The structure according to claim 1, wherein said PC circuit board is provided with a temperature sensor adapted to sense the working temperature of said coil, PC circuit board, working pins of said temperature sensor are in electric connection with said coil contacts and winding wire contacts provided on said Pc circuit board.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1 is a schematically exploded view of a conventional claw crane;

[0010] FIG. 2 is an exploded view of the present invention; and

[0011] FIG. 3 is a perspective view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Referring to FIGS. 2 and 3, a claw crane structure of the present invention includes a main body 20, inside which a coil 21 is configured, and the bottom of the main body 20 is provided with a clamping claw 22 coupled pivotally to a standing tube 23, which is extended inside the coil 21, allowing the clamping claw to be clamped inward and expanded outward according the rise and fall of the standing tube 23 inside the coil 21, it is characterized that the main body 20 is provided with a PC circuit board 30 relatively above the coil 21, and both ends of the coil 21 are respectively in electric connection with two coil contacts 31 configured on the PC circuit board 30; the main body 20 also includes a winding, wire 24 providing electric energy, two terminals of which are similarly in electric connection with two winding wire contacts 32 provided on the PC circuit board 32, and each pair of the coil contact 31 and winding wire contact 32 are allowed to be in electric connection with each other, thereby making the electric energy provided by the winding wire 32 input into the coil 21 through the PC circuit board 30 so that the coil 21 can be energized to generate a magnetic field.

[0013] As mentioned above, in a preferred embodiment, the both ends of the coil 21 is in electric connection with the lower side of the PC circuit board 30, and the terminals of the winding wire 22 the upper side of the upper side of the PC circuit board 30, which is the best.

[0014] With the above structure, the present invention does not need an insulating tape to wind and join the coil 21 and the terminals of the winding wire 24 besides having assembly convenience and rapidity since the both ends of the coil 21 are in electric connection with the PC circuit board 30 and the terminals of the winding wire 24 are also the PC circuit board 30. In addition, since the PC circuit board 30 provided on the main body 20 is relatively positioned above die coil 21, the PC circuit board will not be covered and sealed, so that when the coil 21 and the terminal of the winding wire 22 want to be maintained and replaced, personnel can directly disconnect, short circuit or reconnect the connection between the coil 21, winding wire 24 and PC circuit board 30 to cay out the maintenance, replacement without needing to remove an insulating tape and the sealing layer outside the coil 21, which really has the advantages of the and labor saving, cost saving and operational convenience.

[0015] Furthermore, the PC circuit board 30 is further provided with a temperature sensor (not shown in the figures), and the working pins of the temperature sensor are in electric connection with the coil contacts 31 and winding wire contacts 32 configured on the PC circuit board 30, which can be used to sense the working temperature of the coil 21 and PC circuit board 30, thereby allowing the temperature sensor to control the conduction or short-circuit of the coil 21 and winding wire 24 and preventing the coil 21 from being damaged due to overheating. In a preferred embodiment, the temperature sensor is attached to a tube wall wound around the coil 21, so as to increase the accuracy and rapidity of the temperature sensing.