CN219471782U - Electromagnetic lock - Google Patents

Abstract

The utility model relates to an electromagnetic lock in the technical field of locks, which comprises a lock shell, wherein one side of the inside of the lock shell is fixedly connected with a fixing screw, the outer surface of the fixing screw is provided with a fixing block, the fixing block is provided with a micro switch, the upper end of the micro switch is provided with a small micro switch, the lower end of the micro switch is in abutting connection with a guide rod, the outer surface of the guide rod is sleeved with a limit spring, the upper end of the inside of the lock shell is provided with a movable block, the double-group feedback signal is adopted to solve the loss caused by untimely signal feedback or misjudgment, the double micro switch can realize unlocking of two feedback signals, locking of the two feedback signals is realized, and whether the state of the lock is normal or not can be detected if one signal has a problem.

Description

Electromagnetic lock

Technical Field

The utility model relates to the technical field of locks, in particular to an electromagnetic lock.

Background

The electromagnetic lock utilizes the principle of electricity generation magnetism, and when current passes through the silicon steel sheet, the electromagnetic lock can generate strong suction to tightly absorb the adsorption iron plate so as to achieve the effect of locking the door. The electromagnetic lock can generate excessive magnetic force only by small current, and the door control system for controlling the electromagnetic lock power supply can cut off the power after the identification personnel are correct, so that the door can be opened when the electromagnetic lock loses suction. Because the electromagnetic lock has no complex mechanical structure and the structure of the lock tongue, the electromagnetic lock is suitable for the access control of an escape door or a fire door. The interior of which is protected by epoxy resin.

The existing traditional electromagnetic lock is simple in feedback signal structure, the whole size of the electronic lock is large, the consumable is large, the opening and closing sensitivity of the electronic lock is low, the electronic lock is inconvenient to use, the feedback signal of the switch is not timely or has misjudgment, and the safety is seriously reduced.

Disclosure of Invention

Aiming at the problems, the utility model provides an electromagnetic lock to solve the problems that the prior electromagnetic lock is provided in the background technology, the feedback signal is simple, the sensitivity is low, the feedback is not in time, the safety is reduced, and certain limitation exists.

The technical scheme of the utility model is as follows:

electromagnetic lock, including the lock casing, inside one side fixedly connected with fixed screw of lock casing, the surface of fixed screw is provided with the fixed block, one side of fixed block is provided with micro-gap switch, micro-gap switch's upper end is provided with little micro-gap switch, micro-gap switch's lower extreme is contradicted and is connected with the guide bar, limit spring has been cup jointed to the surface of guide bar, the inside upper end of lock casing is provided with the movable block, inside one side fixedly connected with shell of lock casing, the inside fixedly connected with and the coil of protective casing, the inside fixedly connected with skeleton of coil of wire, the inside lower extreme sliding connection of skeleton has No. one slide bar, the inside upper end sliding connection of skeleton has No. two slide bars, no. three reset springs have been cup jointed to the upper end cover of No. two slide bars, the fixed slot has been seted up at the top of No. two slide bars, the screw rod has been cup jointed to the inside of fixed slot.

The working principle of the technical scheme is as follows:

through setting up micro-gap switch and little micro-gap switch's feedback information system, both can carry out the dual feedback at unblanking and locking, in time transfer information, make the sensitivity of unblanking higher, the security is better, adopt two information to feed back simultaneously, one of them signal goes wrong and just can detect the state of lock whether normal, through the protective housing who sets up, coil and skeleton can be fine protect inside, thereby slide from top to bottom, through the No. three reset spring that sets up, when reciprocating up, can take the screw rod to rotate, make movable block take place to rotate and unblank and close the lock, be favorable to resetting through the No. three reset spring that sets up, the low unsafe technical problem of sensitivity of unblanking has been solved among the prior art.

In a further technical scheme, the upper end fixedly connected with hasp of fixed block, the surface of hasp runs through and opens there is the fixed orifices, the quantity of fixed orifices has four.

Through the hasp that sets up, be favorable to unblanking to whole and close the lock, solved among the prior art and unblanked the low unsafe technical problem of sensitivity.

In a further technical scheme, one side of the fixed block is fixedly connected with a first reset spring, and the first reset spring is sleeved on the outer surface of the fixed screw.

Through the reset spring I, the fixed block which is arranged can automatically reset after unlocking or locking, and the technical problem of low unlocking sensitivity and unsafe in the prior art is solved.

In a further technical scheme, one side of the movable block is fixedly connected with a second reset spring, and one end of the movable block is connected with a screw in a threaded manner.

Through the reset spring No. two that set up, be favorable to making the movable block can automatic re-setting, through the screw rod that sets up, conveniently rotate the movable block, unblank or close the lock, solved among the prior art and unblanked the low unsafe technical problem of sensitivity.

The beneficial effects of the utility model are as follows:

1. according to the utility model, through the feedback information system of the micro switch and the small micro switch, double feedback can be performed during unlocking and locking, and information can be transmitted timely, so that unlocking sensitivity is higher, safety is better, and meanwhile, two information are adopted for feedback, and whether the state of the lock is normal or not can be detected if one signal has a problem.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the lock housing of the present utility model;

FIG. 3 is a schematic view of the structure of the movable block of the present utility model;

fig. 4 is a schematic view of the internal structure of the protective case of the present utility model.

Reference numerals illustrate:

1. a lock housing; 2. locking; 3. a fixing hole; 4. a guide rod; 5. a limit spring; 6. a fixed block; 7. a first return spring; 8. a set screw; 9. a micro-switch; 10. a small micro-switch; 11. a movable block; 12. a second return spring; 13. a screw; 14. a protective housing; 15. a coil; 16. a skeleton; 17. a first slide bar; 18. a second slide bar; 19. a return spring III; 20. a fixing groove.

Detailed Description

Embodiments of the present utility model are further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, the utility model provides an electromagnetic lock, which comprises a lock shell 1, wherein one side of the inside of the lock shell 1 is fixedly connected with a fixing screw 8, the outer surface of the fixing screw 8 is provided with a fixing block 6, one side of the fixing block 6 is provided with a micro switch 9, the upper end of the micro switch 9 is provided with a small micro switch 10, the lower end of the micro switch 9 is in abutting connection with a guide rod 4, the outer surface of the guide rod 4 is sheathed with a limit spring 5, and the upper end of the inside of the lock shell 1 is provided with a movable block 11.

Specifically, the upper end fixedly connected with hasp 2 of fixed block 6, the surface of hasp 2 runs through and opens fixed orifices 3, the quantity of fixed orifices 3 has four, one side fixedly connected with return spring 7 of fixed block 6, return spring 7 cup joints the surface at fixed screw 8, one side fixedly connected with return spring 12 of movable block 11, one end threaded connection of movable block 11 has screw rod 13, inside one side fixedly connected with shell 14 of lock casing 1, shell 14's inside fixedly connected with coil 15, coil 15's inside fixedly connected with skeleton 16, skeleton 16's inside lower extreme sliding connection has slide bar 17 No. one, skeleton 16's inside upper end sliding connection has slide bar 18 No. two, no. three return spring 19 has been cup jointed to the upper end of slide bar 18 No. two, no. two fixed slot 20 has been seted up at the top of slide bar 18, screw rod 13 has been cup jointed to the inside of fixed slot 20.

The working principle and the beneficial effects of the embodiment are as follows.

Through setting up the feedback information system of micro-gap switch 9 and little micro-gap switch 10, both can carry out the double feedback at unblanking and locking, in time transfer information, make the sensitivity of unblanking higher, the security is better, adopt two information to feed back simultaneously, one of them signal goes wrong and just can detect the state of lock and whether normal, lock catch 2 through setting up, be favorable to locking and unlocking to whole, through setting up return spring 7, can be after unblanking or locking, fixed block 6 that is can reset automatically, through setting up return spring 12, be favorable to making movable block 11 reset automatically, through screw rod 13 that sets up, conveniently rotate movable block 11, unblank or lock, through the protective housing 14 that sets up, coil 15 and skeleton 16 can be fine protect inside, thereby slide from top to bottom, when moving up and down, can take screw rod 13 to rotate, make movable block 11 take place to rotate and go on and lock, be favorable to resetting through setting up return spring 19.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (4)

1. Electromagnetic lock, including lock casing, its characterized in that: the inside one side fixedly connected with fixed screw of lock casing, the surface of fixed screw is provided with the fixed block, one side of fixed block is provided with micro-gap switch, micro-gap switch's upper end is provided with little micro-gap switch, micro-gap switch's lower extreme is contradicted and is connected with the guide bar, limit spring has been cup jointed to the surface of guide bar, the inside upper end of lock casing is provided with the movable block, the inside one side fixedly connected with shell of lock casing, the inside fixedly connected with of shell and coil, the inside fixedly connected with skeleton of coil, the inside lower extreme sliding connection of skeleton has a slide bar, the inside upper end sliding connection of skeleton has No. two slide bars, no. three reset spring has been cup jointed to the upper end cover of No. two slide bars, the fixed slot has been seted up to the top of No. two slide bars, the screw rod has been cup jointed to the inside of fixed slot.

2. The electromagnetic lock according to claim 1, wherein: the upper end fixedly connected with hasp of fixed block, the surface of hasp runs through and opens there is the fixed orifices, the quantity of fixed orifices has four.

3. The electromagnetic lock according to claim 1, wherein: one side fixedly connected with return spring No. one of fixed block, return spring cup joints the surface at the fixed screw.

4. The electromagnetic lock according to claim 1, wherein: one side of the movable block is fixedly connected with a second reset spring, and one end of the movable block is connected with a screw rod in a threaded manner.