CN216928220U

CN216928220U - Push-pull electromagnet

Info

Publication number: CN216928220U
Application number: CN202122215359.9U
Authority: CN
Inventors: 刘纪华
Original assignee: Anhui Jiahui Electric Co ltd
Current assignee: Anhui Jiahui Electric Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-07-08
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a push-pull electromagnet which comprises a shell, wherein a movable iron core is connected to the shell in a sliding mode, one end of the shell is provided with a limiting device used for limiting the movable iron core to move, a coil is wound on the movable iron core, a first spring is sleeved on the movable iron core, one end of the first spring is fixedly connected with a spring blocking piece, the spring blocking piece is sleeved on the movable iron core, one end of the spring blocking piece is provided with an installation block, an installation groove is formed in the installation block, and an electrifying device used for controlling the limiting device is installed in the installation groove. The utility model has the advantages that: the power-on device capable of being automatically powered on under the condition of being interfered by the external permanent magnet is arranged, the power-on device can drive the limiting device to limit the movable iron core after being powered on, so that the movable iron core cannot retract, and the power-on device is arranged in the mounting block and has no protruding part compared with an ordinary push-pull electromagnet in shape, so that the installation is simple and convenient.

Description

Push-pull type electromagnet

Technical Field

The utility model relates to the technical field of locks, in particular to a push-pull type electromagnet.

Background

An electromagnet is a preferred element of an intelligent lockset clutch, in a traditional intelligent lockset, the opening and closing of a door lock are controlled by controlling the extension and retraction of an iron core of a push-pull electromagnet, a permanent magnetic interference preventing push-pull electromagnet structure is provided in patent No. CN209742535U, a groove-shaped limiting ring is additionally arranged on an electromagnetic iron core, a baffle is additionally arranged outside the limiting ring, the center of the baffle is provided with a hole, the aperture of the hole is slightly larger than the diameter of the wall of the groove-shaped limiting ring on the electromagnetic iron core, the electromagnetic iron core penetrates through the hole of the baffle, a baffle spring is arranged between the periphery of the baffle and a peripheral fixed wall, and when the electromagnetic lockset is not interfered by a permanent magnet, the baffle is concentric with the upper limiting ring of the electromagnet iron core under the action of the baffle springs in four directions, and the electromagnet can normally work; when the electromagnetic iron core is interfered by an external permanent magnet, the baffle plate acts, the center hole and the limiting ring on the electromagnetic iron core are eccentric, and the electromagnetic iron core is locked, so that the electromagnetic iron core cannot retract, and the misoperation of the electromagnet caused by the interference of the external permanent magnet is prevented. The utility model has the following disadvantages: the interference of external permanent magnets is prevented by installing a separation blade outside the push-pull electromagnet, but a separation blade spring and the separation blade are installed outside the electromagnetic iron core, so that structural encumbrance is easily caused, and inconvenience is brought to the installation of the door lock.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a push-pull electromagnet.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a plug-type electro-magnet, includes the shell, and sliding connection moves the iron core on the shell, and it has the coil to move the winding on the iron core, moves and cup joints a first spring on the iron core, spring catch of one end fixed connection of first spring, and spring catch cup joints move the iron core, spring catch's one end is equipped with an installation piece, is equipped with a mounting groove in the installation piece, an electrifying unit of installation in the mounting groove.

Preferably, the electrifying device comprises two push rods which are symmetrically arranged, each push rod is connected with a wire, each push rod is connected with the corresponding mounting groove in a sliding mode, a baffle is mounted on the side wall of each push rod, a group of springs are mounted on each baffle, one end of each spring is fixedly connected with the corresponding mounting groove, one clamping plate is fixedly connected with one end of each push rod, and a round ball is arranged between the clamping plates.

Preferably, the limiting device comprises a motor, and a stop lever is fixedly connected to the motor.

Preferably, the push rod and the clamping plate are both metal conductors.

Preferably, the clamping plate is provided with an arc surface abutted to the ball, and two sides of the arc surface are respectively provided with a conductive plate.

Preferably, the round ball is made of metal materials which are easily attracted by the magnet, and a layer of insulating cloth is wrapped on the round ball.

The utility model has the beneficial effects that: the push-pull electromagnet provided by the utility model is provided with the electrifying device which can be automatically electrified under the condition of being interfered by an external permanent magnet, the electrifying device can drive the limiting device to limit the movable iron core after being electrified so that the movable iron core cannot retract, the electromagnetic iron core can keep an extended state under the condition of being interfered by the external permanent magnet, and the installation is simple and convenient because the electrifying device is arranged in the installation block and has no protruding part compared with the common push-pull electromagnet in shape.

Drawings

FIG. 1 is a schematic diagram of the basic structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of the pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

As shown in fig. 1 and 3, the push-pull electromagnet provided by the present invention comprises a housing 1, the housing 1 is slidably connected to a movable iron core 2, a coil is wound on the movable iron core 2, when the coil is energized, the movable iron core 2 retracts, one end of the housing 1 is provided with a limiting device for limiting the movement of the movable iron core 2, the limiting device is installed on the housing 1 near a tail end 21 of the movable iron core 2, the limiting device comprises a motor 18, the motor 18 is fixedly connected to a stop lever 19, the stop lever 19 is an L-shaped lever, in a general state, the limiting lever 19 is staggered from the tail end 21 of the movable iron core 2, and the motor 18 drives the stop lever 19 to block the movable iron core 2 after rotating.

Move and cup joint a first spring 3 on the iron core 2, spring catch 4 of one end fixed connection of first spring 3, spring catch 4 cup joints move iron core 2, and spring catch 4's one end is equipped with an installation piece 6, is equipped with a mounting groove 8 in the installation piece 6, and installation one is used for control in the mounting groove 8 stop device's electrifying device, electrifying device includes two symmetrical push rods 9 of placing, all connects a wire 7 on every push rod 9, two wires 7 with motor 18 constitutes a closed return circuit, drives motor 18 when wire 7 switches on and rotates certain angle, makes pin 19 block and moves iron core 2.

Every push rod 9 all with 8 sliding connection of mounting groove, the last sliding tray that corresponds with push rod 9 that is equipped with of mounting groove 8, baffle 11 of the side wall mounting of push rod 9, all install a set of spring 17 on every baffle 11, spring 17's one end with 8 fixed connection of mounting groove, under the general state, spring 17 is in compression state, splint 14 of the equal fixed connection of one end of every push rod 9, push rod 9 with splint 14 is metallic conductor, is equipped with a ball 12 between splint 14, and ball 12 is the metal material of being attracted by magnet easily, and specific ball 12 is the iron ball to parcel one deck insulating cloth on the ball, be equipped with on splint 14 one with the cambered surface of ball 12 butt, the both sides of cambered surface are equipped with a current conducting plate 16 respectively.

The working principle is as follows: when the push-pull electromagnet provided by the utility model is applied to a lockset, the head end of a movable iron core 2 is fixedly connected with a lock head 5, when the lockset is locked, the lock head 5 is clamped in a clamping groove 51, at the moment, a coil is kept in a power-off state, when the coil is electrified, the movable iron core 2 retracts into a shell 1, the lockset is opened, when the movable iron core 2 retracts, the tail end 21 of the movable iron core 2 also needs to move, when a lawless person tries to attract the movable iron core 2 by using an external permanent magnet to open the lockset, the permanent magnet can attract a ball 12, the ball 12 is separated from a clamping plate 14, a conductive plate 16 on the clamping plate 14 is contacted, at the moment, a motor 18 connected with a lead 7 is electrified, a limiting rod 19 rotates and blocks the tail end of the movable iron core 2, the movable iron core 2 can not retract, the safety of a resident can be better ensured, and because an electrifying device is arranged in an installation block and is not different from the appearance of a common push-pull electromagnet, thus, the installation can be simple and convenient.

The foregoing illustrates and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A push-pull electromagnet characterized in that: the device comprises a shell (1), a movable iron core (2), a first spring (3), a spring catch (4), a plug (5), an installation block (6), a round ball (12), a power-on device, an installation groove (8) and a limiting device;

sliding connection moves iron core (2) on shell (1), and the one end of shell (1) is equipped with one and is used for the restriction to move the stop device that iron core (2) removed, moves the winding on iron core (2) and has the coil, moves and cup joints one first spring (3) on iron core (2), spring catch (4) of the one end fixed connection of first spring (3), and spring catch (4) cup joint move iron core (2), the one end of spring catch (4) is equipped with one installation piece (6), is equipped with one mounting groove (8) in installation piece (6), and installation one is used for control in mounting groove (8) stop device's circular telegram device.

2. A push-pull electromagnet according to claim 1, characterized by: the circular telegram device includes push rod (9) that two symmetries were placed, all connects a wire (7) on every push rod (9), every push rod (9) all with mounting groove (8) sliding connection, baffle (11) of the side wall mounting of push rod (9), all install a set of spring (17) on every baffle (11), the one end of spring (17) with mounting groove (8) fixed connection, splint (14) of the equal fixed connection of one end of every push rod (9), be equipped with a ball (12) between splint (14).

3. A push-pull electromagnet according to claim 2, characterized in that: the limiting device comprises a motor (18), a stop lever (19) is fixedly connected to the motor (18), and a lead (7) connected to the push rod (9) is connected to the motor (18).

4. A push-pull electromagnet according to claim 2, characterized in that: the push rod (9) and the clamping plate (14) are both metal conductors.

5. A push-pull electromagnet according to claim 2, characterized in that: the clamping plate (14) is provided with an arc surface abutted to the round ball (12), and two sides of the arc surface are respectively provided with a conductive plate (16).

6. A push-pull electromagnet according to claim 2, characterized in that: the round ball (12) is made of metal materials which are easy to attract by magnets, and a layer of insulating cloth is wrapped on the round ball (12).