Miniature self-locking electromagnet

Abstract

The utility model discloses a miniature self-locking electromagnet, which belongs to the technical field of electromagnetic equipment and comprises a shell, a telescopic permanent magnet is fixedly mounted on the inner bottom wall of the shell, a reset mechanism is arranged in the shell, a self-locking mechanism is arranged in the shell, and the reset mechanism and the self-locking mechanism are fixedly mounted on the inner bottom wall of the shell. And a magnetic attraction mechanism is arranged in the reset mechanism, an adjusting mechanism is arranged in the reset mechanism, and an iron core rod with one end penetrating through and extending out of the shell is fixedly installed at the bottom end of the reset mechanism. According to the utility model, the reset mechanism and the self-locking mechanism are arranged, so that the extension and retraction states of the telescopic column can be self-locked, and the electromagnet is allowed to be maintained at the last operation position even in a power-off state and cannot automatically reset, so that the problem of misoperation of an external mechanism caused by accidental power-off is avoided; and the operation stability and reliability of the electromagnet are obviously enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic equipment, in particular to a micro -type self -locking electromagnet. BACKGROUND

[0002] The basic working principle of the electromagnet is that when the electromagnet is powered, the internal core and armature are magnetized to become two magnets with opposite polarity, which generates electromagnetic attraction between them, when the attraction is greater than the reaction force of the spring inside the electromagnet, the armature drives the shaft to move towards the core direction, when the current is less than a certain value or the power supply is interrupted, the electromagnetic attraction is less than the reaction force of the spring, the armature will drive the shaft to return to the original release position under the reaction force of the spring, so that the electromagnet can lock, unlock or pull the external mechanism by the movement of the shaft when power on and off, and complete the operation.

[0003] The existing electromagnet needs to be continuously powered to maintain the position of the core when in use, relies on the electromagnetic field to maintain the current state, and once the power supply is interrupted, the electromagnet will reset, resulting in misoperation of the external mechanism, reducing the stability and reliability of the electromagnet.

[0004] Therefore, it is urgent to provide a micro -type self -locking electromagnet to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the defects of the prior art and provides a micro -type self -locking electromagnet.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide a micro -type self -locking electromagnet, which comprises a shell, a telescopic permanent magnet is fixedly installed on the inner bottom wall of the shell, a reset mechanism is arranged in the shell, a self -locking mechanism is arranged in the shell, a magnetic attraction mechanism is arranged in the reset mechanism, an adjusting mechanism is arranged in the reset mechanism, and an iron core rod penetrating through one end of the reset mechanism and extending to the outside of the shell is fixedly installed at the bottom end of the reset mechanism.

[0007] Through the above technical scheme, when the electromagnet is powered, the telescopic permanent magnet drives the iron core rod to move downward.

[0008] The utility model is further provided as follows: the reset mechanism comprises two reset springs fixed to the inner bottom wall of the shell, the top end of each of the two reset springs is fixedly installed with a lifting plate, an iron core shell body is fixedly installed between the two lifting plates, and a telescopic column penetrating through one end of the iron core shell body and extending to the outside of the shell is fixedly installed at the top end of the iron core shell body.

[0009] Through the technical scheme, when the electromagnet is powered, the iron core rod drives the iron core shell and the telescopic column to retract into the shell, and after the power supply of the telescopic permanent magnet is interrupted, the reset spring drives the iron core shell and the telescopic column to extend out of the shell through the lifting plate.

[0010] The utility model further sets up: four receiving sliding grooves are arranged on the inner wall of the shell.

[0011] Through the technical scheme, the left and right sides of the front and rear ends of the shell are provided with the receiving sliding grooves.

[0012] The utility model further sets up: the other end of two self locking springs is fixedly installed with square slide post, the both sides of two square slide posts are limit slidingly connected with the inside of receiving sliding groove, and the other end of two square slide posts is fixedly installed with inclined retracting head.

[0013] Through the technical scheme, the square slide post and the inclined retracting head retract through the receiving sliding groove, and the self locking spring drives the square slide post and the inclined retracting head to extend.

[0014] The utility model further sets up: the magnetic attraction mechanism includes two turnover springs fixed in the inner wall of the iron core shell, and the other end of the two turnover springs is fixedly installed with a synchronous plate.

[0015] Through the technical scheme, the two turnover springs drive the synchronous plate to move.

[0016] The utility model further sets up: the inner bottom wall of the iron core shell is fixedly installed with a turnover permanent magnet, and one end of an armature rod fixedly installed on one side of the synchronous plate penetrates and extends into the turnover permanent magnet.

[0017] Through the technical scheme, when the electromagnet is powered, the turnover permanent magnet drives the synchronous plate to move in the opposite direction through the armature rod.

[0018] The utility model further sets up: the adjusting mechanism includes two racks fixed on one side of the synchronous plate, the bottom end of the two racks is slidably connected with the inner bottom wall of the iron core shell, and two rotating shafts are rotatably installed in the iron core shell.

[0019] Through the technical scheme, the synchronous plate drives the rack to move through the iron core shell.

[0020] The utility model further sets up: the outer surface of the two rotating shafts is fixedly installed with a gear, the outer surface of the two gears is respectively engaged with one side of the two racks, and the outer surface of the two rotating shafts is fixedly installed with a square lifting block.

[0021] Through the technical scheme, the rack drives the square lifting block to rotate by forty-five degrees through the gear and the rotating shaft.

[0022] The utility model discloses the beneficial effect is as follows:

[0023] 1. The utility model discloses a reset mechanism and self -locking mechanism can be set up to the extension and retraction state of telescopic column is self -locking, allows the electromagnet to maintain in the last operation position even in the state of power failure, and will not automatically reset, thereby avoid the external mechanism misoperation problem caused by accidental power failure, the stability and reliability of electromagnet operation are enhanced significantly.

[0024] 2. The utility model discloses a magnetic attraction mechanism and adjusting mechanism can be set up, can adjust the angle of square lifting block according to need, cooperates square slide column and the mutual action of inclined retraction head forms mechanical locking mechanism, makes telescopic column also can keep stable without relying on electromagnetic field, satisfies the use demand of user to electromagnet. DRAWINGS

[0025] Figure 1 It is the perspective drawing of the utility model.

[0026] Figure 2 It is the self -locking mechanism section structure drawing of the utility model.

[0027] Figure 3 It is the reset mechanism section structure drawing of the utility model.

[0028] Figure 4 It is the magnetic attraction mechanism and adjusting mechanism section structure drawing of the utility model.

[0029] In the drawing: 1, shell, 2, telescopic permanent magnet, 3, reset mechanism, 301, reset spring, 302, lifting plate, 303, iron core casing, 304, telescopic column, 4, self -locking mechanism, 401, storage sliding slot, 402, self -locking spring, 403, square slide column, 404, inclined retraction head, 5, magnetic attraction mechanism, 501, turnover spring, 502, synchronous board, 503, turnover permanent magnet, 504, armature rod, 6, adjusting mechanism, 601, rack, 602, rotating shaft, 603, gear, 604, square lifting block, 7, iron core rod. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0031] Please refer to Figures 1-4The utility model provides a micro self -locking electromagnet, including shell 1, the inner bottom wall of shell 1 is fixedly installed with telescopic permanent magnet 2, the inside of shell 1 is provided with reset mechanism 3, reset mechanism 3 includes two reset springs 301 fixed in the inner bottom wall of shell 1, the top of two reset springs 301 is fixedly installed with lift plate 302, two lift plates 302 are fixedly installed with iron core casing 303 between, the top of iron core casing 303 is fixedly installed with telescopic column 304 and extends to the outside of shell 1 one end penetrates, the bottom of iron core casing 303 is fixedly installed with iron core rod 7 and extends to the outside of shell 1 one end penetrates, when electromagnet is powered, telescopic permanent magnet 2 drives iron core rod 7 to move down, iron core rod 7 drives iron core casing 303 and telescopic column 304 to retract to the inside of shell 1, after the power interruption of telescopic permanent magnet 2, reset spring 301 drives iron core casing 303 and telescopic column 304 to extend to the outside of shell 1 through lift plate 302.

[0032] As Figure 2 The inside of shell 1 is provided with self -locking mechanism 4, and self -locking mechanism 4 includes four receiving sliding grooves 401 formed in the inner wall of shell 1, two self -locking springs 402 are fixedly installed on the inner wall of each of the four receiving sliding grooves 401, a square sliding column 403 is fixedly installed at the other end of each of the two self -locking springs 402, the two square sliding columns 403 are limitingly and slidably connected with the inside of the receiving sliding grooves 401, and an inclined retracting head 404 is fixedly installed at the other end of each of the two square sliding columns 403.When the square lifting block 604 is driven to lift by the iron core casing 303, the square lifting block 604 drives the square sliding column 403 and the inclined retracting head 404 to retract through the receiving sliding groove 401, and then the self -locking spring 402 drives the square sliding column 403 and the inclined retracting head 404 to extend and reset.

[0033] As Figure 4 The inside of reset mechanism 3 is provided with magnetic attraction mechanism 5, and the magnetic attraction mechanism 5 includes two flip springs 501 fixed to the inner wall of the iron core casing 303, a synchronous plate 502 is fixedly installed at the other end of each of the two flip springs 501, a flip permanent magnet 503 is fixedly installed on the inner bottom wall of the iron core casing 303, and an armature rod 504 is fixedly installed at one end of one side of the synchronous plate 502 and extends to the inside of the flip permanent magnet 503.After the power supply of the flip permanent magnet 503 is stopped, the two flip springs 501 drive the synchronous plate 502 to move and reset, and when the electromagnet is powered, the flip permanent magnet 503 drives the synchronous plate 502 to move in the opposite direction through the armature rod 504.

[0034] As Figures 2-4As shown, the inside of the reset mechanism 3 is provided with an adjusting mechanism 6, the adjusting mechanism 6 includes two racks 601 fixed on one side of the synchronization plate 502, the bottom end of the two racks 601 is slidably connected with the inner bottom wall of the core shell 303, the inside of the core shell 303 is rotatably installed with two rotating shafts 602, the outer surface of the two rotating shafts 602 is fixedly installed with a gear 603, the outer surface of the two gears 603 is respectively engaged with one side of the two racks 601, the outer surface of the two rotating shafts 602 is fixedly installed with a square lifting block 604, by moving the synchronization plate 502 to the side of the overturning permanent magnet 503 by a distance consistent with the distance of the rotating shaft 602 rotating forty-five degrees, the synchronization plate 502 drives the rack 601 to move through the core shell 303, the rack 601 drives the square lifting block 604 to rotate forty-five degrees through the gear 603 and the rotating shaft 602.

[0035] In use, when the electromagnet is powered, the telescopic permanent magnet 2 drives the core rod 7 to move downward, the core rod 7 drives the core shell 303 and the telescopic column 304 to retract into the housing 1, after the power supply of the telescopic permanent magnet 2 is interrupted, the reset spring 301 drives the core shell 303 and the telescopic column 304 to extend outside the housing 1 through the lifting plate 302, thereby controlling the telescopic state of the telescopic column 304, after the electromagnet is powered off, the overturning permanent magnet 503 also stops power supply, the two overturning springs 501 drive the synchronization plate 502 to move and reset, since the distance of the synchronization plate 502 moving to the side of the overturning permanent magnet 503 is consistent with the distance of the rotating shaft 602 rotating forty-five degrees, the synchronization plate 502 drives the rack 601 to move through the core shell 303, the rack 601 drives the square lifting block 604 to rotate forty-five degrees through the gear 603 and the rotating shaft 602, so that when the core shell 303 drives the square lifting block 604 to lift, the square lifting block 604 is fixedly connected with the square slide column 403 and the inclined retracting head 404, the square lifting block 604 cannot drive the square slide column 403 and the inclined retracting head 404 to retract through the storage sliding groove 401 through the inclined surface, thereby fixing the telescopic state of the core shell 303 and the telescopic column 304 through the square lifting block 604, reducing the misoperation of the external mechanism, and improving the stability and reliability of the electromagnet.

[0036] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A micro-latching electromagnet comprising a housing (1), characterized in that: The inner bottom wall of the shell (1) is fixedly installed with a telescopic permanent magnet (2), the inside of the shell (1) is provided with a reset mechanism (3), the inside of the shell (1) is provided with a self-locking mechanism (4), the inside of the reset mechanism (3) is provided with a magnetic attraction mechanism (5), the inside of the reset mechanism (3) is provided with an adjusting mechanism (6), and the bottom end of the reset mechanism (3) is fixedly installed with an iron core rod (7) penetrating through one end and extending to the outside of the shell (1).

2. A miniature self-latching electromagnet according to claim 1, characterized in that: The reset mechanism (3) comprises two reset springs (301) fixed to the inner bottom wall of the shell (1), the top end of each of the two reset springs (301) is fixedly installed with a lifting plate (302), and the two lifting plates (302) are fixedly installed with an iron core shell (303) therebetween.

3. A micro self-latching electromagnet according to claim 1, characterized in that: The self-locking mechanism (4) comprises four receiving sliding grooves (401) formed in the inner wall of the shell (1), and two self-locking springs (402) are fixedly installed on the inner wall of each of the four receiving sliding grooves (401).

4. A miniature self-latching electromagnet according to claim 3, wherein: The other end of each of the two self-locking springs (402) is fixedly installed with a square sliding column (403), and the two square sliding columns (403) are limitedly and slidably connected to the inside of the receiving sliding groove (401) on the two sides.

5. A miniature self-latching electromagnet according to claim 2, wherein: The other end of each of the two square sliding columns (403) is fixedly installed with an inclined retracting head (404).

6. A miniature self-latching electromagnet according to claim 5, wherein: The magnetic attraction mechanism (5) comprises two flip springs (501) fixed to the inner wall of the iron core shell (303), and the other end of each of the two flip springs (501) is fixedly installed with a synchronous plate (502).

7. A miniature self-latching electromagnet according to claim 5, wherein: The inner bottom wall of the iron core shell (303) is fixedly installed with a flip permanent magnet (503), and one end of an armature rod (504) penetrating through and extending to the inside of the flip permanent magnet (503) is fixedly installed on one side of the synchronous plate (502).

8. A miniature self-latching electromagnet according to claim 7, wherein: The adjusting mechanism (6) comprises two racks (601) fixed to one side of the synchronous plate (502), the bottom end of each of the two racks (601) is slidably connected to the inner bottom wall of the iron core shell (303), and two rotating shafts (602) are rotatably installed in the iron core shell (303). The outer surface of each of the two rotating shafts (602) is fixedly installed with a gear (603), the outer surface of each of the two gears (603) is meshed with one side of the two racks (601) respectively, and the outer surface of each of the two rotating shafts (602) is fixedly installed with a square lifting block (604).

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