Electromagnetic pin puller with self-locking function

Abstract

The utility model relates to an electromagnetic pin puller with a self-locking function, which belongs to the technical field of automatic control electrical equipment, and is characterized in that after a coil component of the electromagnetic pin puller with the self-locking function is electrified, a magnetic pull pin moves towards a rear end cover under the action of magnetic attraction force, and the magnetic attraction force extrudes a reset spring to enable the magnetic pull pin to be attracted in place; the extrusion locking mechanism pushes the bottom end of the locking pin to pop out and be embedded into an annular groove of the magnetic pull pin, so that the pin pulling movement power-off locking function of the electromagnetic pin puller is realized; the strong magnet attracts the top plate of the locking mechanism to attract the locking pin out, the bottom end of the magnetic pull pin is separated from the annular groove, the magnetic pull pin pushes out the pin to restore to the initial position through the elastic force of the reset spring, and the pin pulling-locking-reset circulation function is achieved in sequence.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic control electrical equipment, and specifically relates to an electromagnetic pin puller with a self-locking function. Background Art

[0002] An electromagnetic pin puller is a device that completes the task of releasing the safety after receiving an electrical signal. The existing electromagnetic pin puller adopts a traditional magnetic circuit structure. Because the electromagnetic pin puller with a magnetic circuit structure does not have a self-locking function, the electromagnetic pin puller will burn out when working for a long time in a high voltage environment, affecting the normal operation of the electromagnetic pin puller. Therefore, a pin puller without a self-locking function cannot meet the requirements of the electromagnetic pin puller working for a long time in a high voltage environment; therefore, it is very necessary to design and produce an electromagnetic pin puller that can achieve a self-locking function. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, the utility model discloses an electromagnetic pin puller with a self-locking function. After the coil component of the electromagnetic pin puller with a self-locking function is energized, the magnetic pin moves toward the rear end cover under the action of magnetic attraction, and the magnetic attraction squeezes the reset spring to make the magnetic pin sucked into place, and the squeeze locking mechanism pushes the bottom end of the locking pin to pop out and embed into the annular groove of the magnetic pin, thereby realizing the power-off locking function of the electromagnetic pin puller when the pin is pulled out; the top plate of the locking mechanism is attracted by a strong magnet to suck out the locking pin, and the bottom end of the magnetic pin is separated from the annular groove, and the magnetic pin is pushed out to restore to the initial position by the elastic force of the reset spring, thereby realizing the functions of pin pulling-locking-resetting cycle in sequence.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] The electromagnetic pin puller with self-locking function includes a front end, a magnetic pin, a locking mechanism, a rear end, and a reset spring; the reset spring is accommodated inside the rear end, the front end of the magnetic pin is spaced inside the rear end, the rear end of the magnetic pin is penetrated inside the front end, the rear end of the magnetic pin is provided with an annular groove, and the locking mechanism is connected to the annular groove.

[0006] As a preference, it comprises: a connecting plate, a front end cover, and a guide sleeve; the connecting plate is arranged on the outside of the front end portion, the front end cover is arranged on the inside of the connecting plate, and the guide sleeve is accommodated and arranged on the inside of the front end cover.

[0007] Preferably, it includes: a connecting plate socket, a front end cover socket, a guide sleeve socket, and a locking mechanism socket; the connecting plate socket is a circular through hole set through the surface of the connecting plate, the front end cover socket is a circular through hole set through the surface of the front end cover, the guide sleeve socket is a circular through hole set through the inside of the guide sleeve, and the locking mechanism socket is a circular through hole set through the top surface and the bottom surface of the connecting plate.

[0008] Preferably, it includes: screw holes; the screw holes are circular through holes penetrating through the connecting plate and the surface of the front end cover.

[0009] Preferably, it includes: tightening screws; the tightening screws are inserted into the screw holes for connection.

[0010] Preferably, it includes: an outer cylinder, a rear end cover, and a coil component; the outer cylinder is arranged around the rear end portion, the rear end cover is accommodated at one end of the outer cylinder, and the coil component is accommodated at the other end of the outer cylinder.

[0011] Preferably, it includes: a coil, a coil skeleton, and a coil skeleton socket; the coil is arranged around the coil skeleton to form a coil component, and the coil skeleton socket is a through hole inside the coil skeleton.

[0012] Preferably, it includes: a top plate, a locking pin, a setscrew, a connection port, and a compression spring; the top plate is arranged on the top surface of the locking mechanism, the locking pin is connected to the bottom surface of the top plate, the setscrew is arranged outside the locking pin, the connection port is arranged outside the locking pin, and the compression spring is arranged outside the locking pin.

[0013] The beneficial effects of the present utility model are as follows: After the coil component of the electromagnetic pin puller with a self-locking function is energized, the magnetic pin moves towards the rear end cover under the action of magnetic suction. The magnetic suction squeezes the return spring so that the magnetic pin is sucked in place. The squeezing of the locking mechanism pushes the bottom end of the locking pin to pop out and embed into the annular groove of the magnetic pin, realizing the function of locking the pin movement of the electromagnetic pin puller when the power is off; By using a strong magnet to attract and suck the top plate of the locking mechanism to pull out the locking pin, the bottom end of the magnetic pin is disengaged from the annular groove, and the magnetic pin pushes out the pin through the elastic force of the return spring to return to the initial position, successively realizing the functions of pin pulling - locking - reset cycle. Description of the Drawings

[0014] Figure 1 is the exploded structural schematic diagram of the present utility model;

[0015] Figure 2 is the three-dimensional assembled structural diagram of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the locking mechanism.

[0017] In the figure, the front end portion 1, the rear end portion 2, the rear end cover 3, the outer cylinder 4, the coil component 5, the coil skeleton 6, the coil 7, the return spring 8, the coil skeleton socket 9, the magnetic pin 10, the annular groove 11, the locking mechanism 12, the guide sleeve 13, the front end cover 14, the front end cover socket 15, the screw hole 16, the connecting plate 17, the connecting plate socket 18, the tightening screw 19, the guide sleeve socket 20, the locking mechanism socket 21, the top plate 22, the locking pin 23, the compression spring 24, the setscrew 25, the connection port 26. Detailed Embodiments

[0018] To make the above objects, technical solutions, and beneficial effects clearer and more explicit, the following specifically describes the present utility model in conjunction with the accompanying drawings.

[0019] As Figures 1-3 shown, the electromagnetic pin extractor 10 with a self-locking function includes a front end portion 1, a magnetic pin 10, a locking mechanism 12, a rear end portion 2, and a return spring 8;

[0020] On the surface of the connecting plate 17 of the front end portion 1, a through circular through-hole is provided as the connecting plate socket 18. Circular through-holes penetrating through the left and right sides of the connecting plate socket 18 are screw holes 16. A circular through-hole penetrating through the surface of the front end cover 14 is the front end cover socket 15. Circular through-holes penetrating through the left and right sides of the front end cover socket 15 are screw holes 16. The connecting plate socket 18 coincides with the front end cover socket 15. After the screw holes 16 on the surface of the connecting plate 17 coincide with the screw holes 16 on the surface of the front end cover 14, the tightening screws 19 are inserted and tightened for installation. The front end cover 14 is connected to the connecting plate 17. A guide sleeve 13 is inserted from the inside of the front end cover socket 15. A circular through-hole penetrating through the inside of the guide sleeve 13 is the guide sleeve socket 20. The rear end portion 2 of the magnetic pin 10 is inserted from the guide sleeve socket 20, the front end cover socket 15, and the connecting plate socket 18. The rear end portion 2 of the magnetic pin 10 is exposed outside the connecting plate 17. A circular through-hole penetrating from the top surface to the bottom surface of the connecting plate 17 is the locking mechanism socket 21. The locking mechanism sockets 21 are provided on both the top surface and the bottom surface of the connecting plate 17. The locking mechanism 12 is inserted from the locking mechanism sockets 21 at the top surface and the bottom surface positions of the connecting plate 17 to contact the annular groove 11.

[0021] An outer cylinder 4 in the shape of a cylinder is provided around the rear end portion 2. One end of the outer cylinder 4 accommodates the rear end cover 3, and the other end accommodates the coil 7 component 5. The coil 7 is wound around the periphery of the coil skeleton 6 to form the coil 7 component 5. A circular through-hole penetrating through the inside of the coil skeleton 6 is the coil skeleton socket 9. The return spring 8 is accommodated in the coil skeleton socket 9. After the coil 7 component 5 is installed, one side of the coil skeleton socket 9 is inserted into the rear end cover 3, and the other side is inserted into the magnetic pin 10. The front end of the magnetic pin 10 is accommodated inside the coil 7 component 5, and the front end portion 1 of the magnetic pin 10 is in contact with the return spring 8.

[0022] The top end of the locking mechanism 12 is provided with a square top plate 22. A through-hole is provided on the top surface of the top plate 22. A locking pin 23 is inserted from the through-hole. A compression spring 24, a connection port 26, and a setscrew 25 are sleeved around the locking pin 23. The setscrew 25 is connected to the bottom surface of the top plate 22. The bottom end of the locking pin 23 exposes from the bottom end of the connection port 26. After the locking mechanism 12 is installed, it is installed from the locking mechanism socket 21.

[0023] The electromagnetic puller with self-locking function assembles the connecting plate 17, the front end cover 14, the guide sleeve 13, and the magnetic pull pin 10 to form the front end part 1, assembles the coil 7 and the coil skeleton 6 into the coil 7 component 5, and assembles the rear end cover 3, the outer cylinder 4, and the coil 7 component 5 into the rear end part 2. The return spring 8 is installed from the coil skeleton socket 9. After the return spring 8 is installed, the magnetic pull pin 10 is inserted from the coil skeleton socket 9. The locking mechanism 12 is inserted and installed from the locking mechanism socket 21. The puller is connected to a DC power supply through the lead wire. After the coil 7 component 5 is energized, a magnetic field is generated due to the phenomenon of electromagnetism. The magnetic field generates magnetic suction force. The magnetic pull pin 10 moves towards the rear end cover 3 under the action of the electromagnetic suction force. The magnetic suction force makes the magnetic pull pin 10 suck in place. When the magnetic pull pin 10 sucks in place, the annular groove 11 enters into the connecting plate 17. Under the action of the magnetic suction force, the compression spring 24 of the locking mechanism 12 is squeezed. The compression spring 24 pushes the locking pin 23 to pop out. The bottom end of the locking pin 23 is embedded into the annular groove 11 and locked in the annular groove 11 of the magnetic pull pin 10. The bottom surface of the connection port 26 contacts the outer surface of the annular groove 11, and the set screw 25 contacts the inner wall of the locking mechanism socket 21. At this time, the electromagnetic puller realizes the function of locking after the pin pulling movement is powered off. The reset of the magnetic pull pin 10 uses a strong magnet to attract the top plate 22. The magnetic force of the strong magnet sucks out the top plate 22. During this process, the compression spring 24 retracts, and the locking pin 23 disengages from the annular groove 11. After the locking pin 23 disengages, the magnetic pull pin 10 returns to its initial position. The functions of the magnetic pull pin 10 - locking - reset are realized in sequence.

[0024] Finally, it should be noted that the above preferred solutions are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred solutions, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An electromagnetic pin puller with self-locking function, characterized in that: include: A front end portion (1), a magnetic pull pin (10), a locking mechanism (12), a rear end portion (2), and a return spring (8); The return spring (8) is accommodated in the rear end portion (2), the front end of the magnetic pull pin (10) is spaced inside the rear end portion (2), the rear end of the magnetic pull pin (10) is penetrated inside the front end portion (1), the rear end of the magnetic pull pin (10) is provided with an annular groove (11), and the bottom end of the locking mechanism (12) is embedded in the annular groove (11).

2. An electromagnetic pin puller with self-locking function according to claim 1, characterized in that: include: A connecting plate (17), a front end cover (14), and a guide sleeve (13); the connecting plate (17) is arranged on the outside of the front end portion (1), the front end cover (14) is arranged on the inside of the connecting plate (17), and the guide sleeve (13) is accommodated and arranged on the inside of the front end cover (14).

3. An electromagnetic pin puller with self-locking function according to claim 2, characterized in that: include: A connecting plate socket (18), a front end cover socket (15), a guide sleeve socket (20), and a locking mechanism socket (21); the connecting plate socket (18) is a circular through hole provided through the surface of the connecting plate (17), the front end cover socket (15) is a circular through hole provided through the surface of the front end cover (14), the guide sleeve socket (20) is a circular through hole provided through the inside of the guide sleeve (13), and the locking mechanism socket (21) is a circular through hole provided through the top surface to the bottom surface of the connecting plate (17).

4. An electromagnetic pin puller with self-locking function according to claim 2, characterized in that: include: The screw hole (16) is a circular through hole that penetrates the surface of the connecting plate (17) and the front end cover (14).

5. An electromagnetic pin puller with self-locking function according to claim 4, characterized in that: include: A tightening screw (19) is inserted into the screw hole (16) for connection.

6. The electromagnetic pin puller with self-locking function according to claim 1, characterized in that: include: An outer cylinder (4), a rear end cover (3), and a coil component (5); the outer cylinder (4) is arranged on the periphery of the rear end portion (2), the rear end cover (3) is accommodated and arranged at one end of the outer cylinder (4), and the coil component (5) is accommodated and arranged at the other end of the outer cylinder (4).

7. An electromagnetic pin puller with self-locking function according to claim 6, characterized in that: include: A coil (7), a coil frame (6), and a coil frame socket (9); the coil (7) is arranged on the periphery of the coil frame (6) to form a coil component (5), and the coil frame socket (9) is a through hole inside the coil frame (6).

8. The electromagnetic pin puller with self-locking function according to claim 1, characterized in that: include: A top plate (22), a locking pin (23), a top screw (25), a connection port (26), and a compression spring (24); the top plate (22) is arranged on the top surface of the locking mechanism (12), the locking pin (23) is connected to the bottom surface of the top plate (22), the top screw (25) is arranged on the outside of the locking pin (23), the connection port (26) is arranged on the outside of the locking pin (23), and the compression spring (24) is arranged on the outside of the locking pin (23).

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