3P magnetic suction head

Abstract

The utility model relates to the technical field of 3P magnetic suckers, in particular to a 3P magnetic sucker which comprises a connector, one end of the connector is fixedly connected with a sealing plate, the other end of the connector is connected with a plug in a clamping mode, one side of the connector is fixedly connected with a connecting wire, and three sets of contact pins used for being electrically connected with an external connector are connected between the connector and the plug in a sliding mode. One ends of the three groups of pins are fixedly connected with pin heads, the other ends of the pin heads are fixedly connected with guide pins, and one surface, close to the pins, of the sealing plate is fixedly connected with three groups of connecting seats; the plug is inserted into the joint of external equipment, the contact pin is extruded to a certain degree and drives the guide pin to be inserted into the connecting seat, so that current flows to the joint of the external equipment through the connecting wire, the connecting seat, the guide pin and the contact pin, and when the magnetic suction head is disconnected from the external equipment, the insulation spring extrudes the pin head, so that the guide pin is disconnected from the connecting seat, and the contact pin is not electrified; fire disasters are prevented, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of 3P magnetic suction heads, in particular to a 3P magnetic suction head. Background Art

[0002] The magnetic head is a type of connecting plug. It increases the connection stability of the connecting plug through the magnetic adsorption function. A certain number of PINs are designed on the magnetic head, and the pins are electrically connected to the internal connector of the external device.

[0003] Existing magnetic suction heads, such as the multi-pin magnetic suction plug connector proposed in patent application number "CN202221606986.3", are connected by structures such as an insulating seat, a shell, a magnet, a spring pin, and a circuit board. The insulating seat forms a mutually engaged connection structure with the injection-molded shell through a connecting portion and a fixing groove to ensure the stability of the connector structure.

[0004] However, the pins are always connected to the power cord via the circuit board. When the magnetic head is unplugged from the external device, if the power cord is forgotten to be disconnected from the external power supply, the pins are in an energized state, which may easily cause a fire and has poor safety performance. Therefore, a 3P magnetic head is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a 3P magnetic suction head to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A 3P magnetic head, comprising a connector, one end of which is fixedly connected to a sealing plate, the other end of which is clamped to a plug, one side of which is fixedly connected to a connecting wire, three groups of pins for electrically connecting to an external connector are slidably connected between the connector and the plug, one end of each of the three groups of pins is fixedly connected to a needle, and the other end of each of the needles is fixedly connected to a guide pin;

[0008] The sealing plate is fixedly connected to one side close to the plug pins with three groups of connection seats, the three groups of guide pins are respectively plug-in electrically connected to the three groups of connection seats, and insulating springs are clamped between the three groups of guide pins and the three groups of connection seats, and the three groups of connection seats are electrically connected to the connecting wires.

[0009] Preferably, three groups of lower sockets are fixedly connected to one end of the connector close to the plug, three groups of guide pins respectively penetrate the three groups of lower sockets, three groups of needle heads are respectively snapped into the three groups of lower sockets, three groups of upper sockets are fixedly connected to one side of the sealing plate, three groups of connecting seats respectively penetrate the three groups of upper sockets, one end of the insulating spring is fixed to the needle heads, and the other end is snapped into the upper sockets.

[0010] Preferably, a card slot is provided at the end of the plug, a magnet is carded in the card slot, a connecting column is fixedly connected to one end of the magnet, the connecting column passes through the plug and one end of the connector, a locking assembly is fixedly connected inside the connector, and the locking assembly is plugged into and matched with the end of the connecting column.

[0011] Preferably, the locking assembly includes a rotating seat, which is fixed to the inner wall of the connecting head, and a reciprocating screw is rotatably connected to the rotating seat. The side wall of the reciprocating screw is threadedly connected to a plug plate, the plug plate is shaped as a rectangular parallelepiped, and the plug plate is slidably connected to the inner wall of the connecting head.

[0012] Preferably, a slide rail is fixedly connected to the inner wall of the connector, the plug plate is slidably connected to the slide rail, and a plurality of fixed plates are fixedly connected to the side wall of the reciprocating screw rod, the plurality of fixed plates are arranged in a circular array, and the fixed plates are located between the rotating seat and the slide rail.

[0013] Preferably, a socket is formed through the end of the connecting column, the plug plate is plugged into the socket, and the bottom of the plug plate fits against the inner wall of the connector.

[0014] Beneficial effects of the utility model:

[0015] The utility model is provided with three groups of PINs, and when the plug is inserted into the connection part of the external device, the plug pin is squeezed to a certain extent, and displacement occurs in the plug, the insulating spring is compressed, and the plug pin is inserted into the connection seat with the guide pin, so that the current flows to the connection part of the external device through the connecting wire, the connection seat, the guide pin and the plug pin. When the magnetic suction head is disconnected from the external device, the insulating spring squeezes the needle head, so that the guide pin is disconnected from the connection seat, the plug pin is not energized, fire is prevented, and the safety performance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the lower end structure of the magnetic suction head of the utility model;

[0018] Figure 2 This is a schematic diagram of the upper structure of the magnetic suction head of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the magnetic suction head of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connector of the utility model;

[0021] Figure 5 This is a schematic diagram of the sealing plate structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the magnet structure of the utility model;

[0023] The reference numerals in the figures are as follows:

[0024] 1. Connector; 2. Plug; 3. Closing plate; 4. Connecting wire; 5. Magnet; 6. Connecting column; 7. Pin; 8. Needle; 9. Lower socket; 10. Guide pin; 11. Insulating spring; 12. Upper socket; 13. Connecting seat; 14. Rotating seat; 15. Reciprocating screw; 16. Slide rail; 17. Fixed plate; 18. Insert plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] A 3P magnetic head, such as Figure 1-Figure 6 As shown, it comprises a connector 1, one end of the connector 1 is fixedly connected to a sealing plate 3, the other end is clamped to a plug 2, one side of the connector 1 is fixedly connected to a connecting wire 4, three groups of plug pins 7 for electrical connection with an external connector are slidably connected between the connector 1 and the plug 2, one end of the three groups of plug pins 7 are fixedly connected to needles 8, and the other end of the needles 8 are fixedly connected to guide pins 10;

[0027] The sealing plate 3 is fixedly connected to one side close to the plug pin 7 with three groups of connection seats 13, and the three groups of guide pins 10 are respectively plug-in electrically connected to the three groups of connection seats 13, and insulating springs 11 are clamped between the three groups of guide pins 10 and the three groups of connection seats 13, and the three groups of connection seats 13 are all electrically connected to the connecting wires 4.

[0028] The connector 1, the sealing plate 3 and the plug 2 are all made of insulating materials. Three groups of pins 7 are provided. When the plug 2 is inserted into the connection of the external device, the pin 7 is squeezed to a certain extent, and displacement occurs in the plug 2. The needle 8 squeezes the insulating spring 11, and the pin 7 is inserted into the connection seat 13 with the guide pin 10, so that the current flows to the connection of the external device through the connecting wire 4, the connection seat 13, the guide pin 10 and the pin 7. When the magnetic head is disconnected from the external device, the spring squeezes the needle 8, so that the guide pin 10 is disconnected from the connection seat 13, and the pin 7 is not energized, thereby preventing fire and improving safety performance.

[0029] The connector 1 is fixedly connected to one end close to the plug 2 with three groups of lower sockets 9, three groups of guide pins 10 respectively penetrate the three groups of lower sockets 9, three groups of needle heads 8 are respectively snapped into the three groups of lower sockets 9, one side of the sealing plate 3 is fixedly connected to three groups of upper sockets 12, three groups of connecting seats 13 respectively penetrate the three groups of upper sockets 12, one end of the insulating spring 11 is fixedly connected to the needle heads 8, and the other end is snapped into the upper socket 12.

[0030] like Figure 3 As shown, the insulating spring 11 squeezes the connection seat 13 and the guide pin 10 apart, and the lower socket 9 and the upper socket 12 are used to install and fix the insulating spring 11, and the insulating spring 11 is sleeved on the connection seat 13 and the guide pin 10.

[0031] The plug 2 has a card slot at the end thereof, in which a magnet 5 is carded, one end of the magnet 5 being fixedly connected to a connecting column 6, which passes through the plug 2 and one end of the connector 1, and a locking assembly is fixedly connected inside the connector 1, which is plugged into and fits with the end of the connecting column 6.

[0032] like Figure 1 and Figure 3 As shown, the card slot is fitted with the magnet 5, the magnet 5 is magnetically attracted to the external device, the magnet 5 and the connecting column 6 fix the plug 2 and the connector 1, and the locking assembly locks one end of the connecting column 6 in the connector 1 to prevent the plug 2 from being separated from the connector 1. The plug 2 and the connector 1 can be easily disassembled and assembled by removing the sealing plate 3, and the non-integrated injection molding form is used to facilitate the maintenance of the internal part of the magnetic suction head.

[0033] The locking assembly includes a rotating seat 14, which is fixed to the inner wall of the connector 1. A reciprocating screw 15 is rotatably connected to the rotating seat 14. A plug plate 18 is threadedly connected to the side wall of the reciprocating screw 15. The plug plate 18 is shaped like a rectangular parallelepiped and is slidably connected to the inner wall of the connector 1.

[0034] like Figure 3-Figure 4 As shown, by rotating the reciprocating screw rod 15 , the plug plate 18 can be driven to move in the connector 1 .

[0035] The inner wall of the connector 1 is fixedly connected to a slide rail 16 , and the insert plate 18 is slidably connected to the slide rail 16 . The side wall of the reciprocating screw 15 is fixedly connected to multiple sets of fixed plates 17 , which are arranged in a circular array and are located between the rotating seat 14 and the slide rail 16 .

[0036] like Figure 4 As shown, when the fixed plate 17 is scraped, the reciprocating screw rod 15 is driven to rotate, and the plug plate 18 is driven to move on the connector 1.

[0037] The end of the connecting column 6 is penetrated by a socket, the plug plate 18 is plugged into the socket, and the bottom of the plug plate 18 is in contact with the inner wall of the connector 1.

[0038] like Figure 4 As shown, when the connecting column 6 is plugged and installed on the connecting head 1, the plug plate 18 is moved and the plug plate 18 is passed through the end of the connecting column 6, so that one end of the connecting column 6 is fixed in the connecting head 1 to prevent the connecting column 6 from loosening.

[0039] The working principle of a 3P magnetic suction head provided by the utility model is as follows:

[0040] By inserting the plug 2 into the connection of the external device, the pin 7 is squeezed to a certain extent, causing displacement in the plug 2, and the insulating spring 11 is compressed. The pin 7 is inserted into the connecting seat 13 with the guide pin 10, so that the current flows to the connection of the external device through the connecting wire 4, the connecting seat 13, the guide pin 10, and the pin 7. When the magnetic head is disconnected from the external device, the insulating spring 11 squeezes the needle 8, so that the guide pin 10 is disconnected from the connecting seat 13, and the pin 7 is not energized, thereby preventing fire and improving safety performance.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A 3P magnetic suction head, comprising a connector (1), characterized in that: The connector (1) has a sealing plate (3) fixedly connected to one end and a plug (2) clamped to the other end. A connecting wire (4) is fixedly connected to one side of the connector (1). Three groups of plug pins (7) for electrically connecting to an external connector are slidably connected between the connector (1) and the plug (2). One end of each of the three groups of plug pins (7) is fixedly connected to a needle head (8), and the other end of each of the needle heads (8) is fixedly connected to a guide pin (10). Three groups of connection seats (13) are fixedly connected to one side of the sealing plate (3) close to the plug pins (7); the three groups of guide pins (10) are respectively plug-connected and electrically connected to the three groups of connection seats (13); insulating springs (11) are clamped between the three groups of guide pins (10) and the three groups of connection seats (13); and the three groups of connection seats (13) are electrically connected to the connecting wires (4).

2. A 3P magnetic suction head according to claim 1, characterized in that: The connector (1) is fixedly connected to one end close to the plug (2) with three groups of lower sockets (9), three groups of guide pins (10) respectively penetrate the three groups of lower sockets (9), three groups of needle heads (8) are respectively clamped in the three groups of lower sockets (9), one side of the sealing plate (3) is fixedly connected to three groups of upper sockets (12), three groups of connection seats (13) respectively penetrate the three groups of upper sockets (12), one end of the insulating spring (11) is fixedly connected to the needle heads (8), and the other end is clamped in the upper sockets (12).

3. A 3P magnetic suction head according to claim 1, characterized in that: The end of the plug (2) is provided with a slot in which a magnet (5) is clamped; one end of the magnet (5) is fixedly connected to a connecting column (6); the connecting column (6) passes through the plug (2) and one end of the connector (1); a locking assembly is fixedly connected inside the connector (1); the locking assembly is plug-fitted to the end of the connecting column (6).

4. A 3P magnetic suction head according to claim 3, characterized in that: The locking assembly comprises a rotating seat (14), the rotating seat (14) is fixedly connected to the inner wall of the connecting head (1), a reciprocating screw rod (15) is rotatably connected to the rotating seat (14), a plug plate (18) is threadedly connected to the side wall of the reciprocating screw rod (15), the plug plate (18) is configured to be a rectangular parallelepiped, and the plug plate (18) is slidably connected to the inner wall of the connecting head (1).

5. A 3P magnetic suction head according to claim 4, characterized in that: The inner wall of the connector (1) is fixedly connected to a slide rail (16), the plug plate (18) is slidably connected to the slide rail (16), and the side wall of the reciprocating screw rod (15) is fixedly connected to multiple groups of fixed plates (17), which are arranged in a circular array, and the fixed plates (17) are located between the rotating seat (14) and the slide rail (16).

6. A 3P magnetic suction head according to claim 5, characterized in that: The end of the connecting column (6) is penetrated by a socket, the plug plate (18) is plugged into the socket, and the bottom of the plug plate (18) is in contact with the inner wall of the connecting head (1).

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