Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and designs an electromechanical variable frequency electromagnetic lock which is simple in structure and can be unlocked under the condition of power failure.
The purpose of the utility model can be realized by the following technical scheme:
an electromechanical variable frequency electromagnetic lock comprising:
the shell comprises a lock shell and a panel, wherein the panel is arranged on an outer connecting surface of the lock shell, a communicating groove is formed in the outer connecting surface, a communicating hole corresponding to the communicating groove is formed in the panel, a straight baffle and an L-shaped baffle are arranged in the lock shell at positions corresponding to the communicating groove, the straight baffle and the vertical part of the L-shaped baffle are enclosed to form a sliding groove, and the straight baffle and the horizontal part of the L-shaped baffle are enclosed to form a sliding opening;
the triangular bolt part comprises a triangular bolt body, a triangular bolt head and a sliding rod, the triangular bolt head is rotatably connected to the front end of the triangular bolt body, a movable groove which is opened towards the side face is formed in the rear end of the triangular bolt body, the sliding rod is rotatably connected into the movable groove, a torsion spring is arranged at the rotating connection position of the sliding rod, a first rolling shaft is arranged at one end of the sliding rod outside the movable groove, the triangular bolt part is slidably arranged in the sliding groove, the triangular bolt head extends to the outside through a communicating groove and a communicating hole, the opening on the side face of the movable groove is arranged towards the straight baffle, and the first rolling shaft is in contact with the transverse part of the L-shaped baffle;
the locking part comprises a rotating supporting rod and an electromagnet, the middle of the rotating supporting rod is connected into the lock shell in a rotating mode through a bearing column and a second rolling shaft, the electromagnet is arranged on the inner wall of the other side of the outer joint surface in the lock shell, the rotating supporting rod comprises a clamping end and an adsorption end, the clamping end is connected with the sliding opening, the adsorption end is matched with the electromagnet, and the clamping end and the adsorption end are obliquely arranged.
Furthermore, the triangular bolt head comprises a bolt head I and a bolt head II which are identical in shape and are arranged oppositely, the triangular bolt head is provided with a straight surface and an inclined surface, and the straight surface of the bolt head I and the straight surface of the bolt head II are arranged outwards, and the inclined surface of the bolt head I and the inclined surface of the bolt head II are arranged inwards.
Furthermore, a semicircular lug is arranged at the rotating connection position of the triangular bolt head.
Furthermore, a reset hole is formed in the middle of the rotating support rod and close to the clamping end, a riveting column is arranged on the inner wall of the lock shell corresponding to the reset hole, a reset spring is arranged on the riveting column, the riveting column extends into the reset hole, and the reset spring is connected with the reset hole.
Furthermore, a third rolling shaft is arranged on the clamping end.
Compared with the prior art, the utility model has reasonable structure and arrangement: the electromagnet is demagnetized when the power is cut off, so that the electromagnetic lock can be unlocked, the safety of the electromechanical variable-frequency electromagnetic lock is improved, and the personal safety of personnel under the condition of emergency power failure is guaranteed.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
the shell 1 comprises a lock shell 11 and a panel 12, wherein the panel 12 is arranged on an external connection surface 111 of the lock shell 11, a communication groove 112 is formed in the external connection surface 111, a communication hole 121 corresponding to the communication groove 112 is formed in the panel 12, a straight baffle 13 and an L-shaped baffle 14 are arranged in the lock shell 11 at a position corresponding to the communication groove 112, a sliding groove 15 is formed by enclosing vertical parts of the straight baffle 13 and the L-shaped baffle 14, and a sliding opening 16 is formed by enclosing horizontal parts of the straight baffle 13 and the L-shaped baffle 14;
the triangular bolt part 2 comprises a triangular bolt body 21, a triangular bolt head 22 and a sliding rod 23, wherein the triangular bolt head 22 is rotatably connected to the front end of the triangular bolt body 21, the rear end of the triangular bolt body 21 is provided with a movable groove 211 which is opened towards the side, the sliding rod 23 is rotatably connected in the movable groove 211, a torsional spring 231 is arranged at the rotating connection position of the sliding rod 23, one end of the sliding rod 23 outside the movable groove 211 is provided with a first rolling shaft 232, the triangular bolt part 2 is slidably arranged in the sliding groove 15, the triangular bolt head 22 extends to the outside through a communication groove 112 and a communication hole 121, the side opening of the movable groove 211 faces the straight baffle 13, and the first rolling shaft 232 is in contact with the transverse part of the L-shaped baffle 14;
locking part 3, including changeing branch 31, electro-magnet 32, change the middle part of branch 31 and rotate through bearing post 33 and second roller 34 and connect in lock shell 11, electro-magnet 32 sets up in lock shell 11 on the inner wall of external junction surface 111 another side, change branch 31 and include joint end 311 and absorption end 312, joint end 311 links up with slip mouth 16, absorption end 312 cooperatees with electro-magnet 32, the slope sets up between joint end 311 and the absorption end 312.
Specifically, the electromagnetic lock with the electric frequency conversion realizes the locking function of the door through the triangular bolt part 2. The triangular plug head 22 is extended out of the communication hole 121 when the triangular plug is normally at rest, and the sliding rod 23 is pushed by the torsion spring 231 against the transverse part of the L-shaped baffle plate 14 to keep the triangular plug body 21 and the triangular plug head 22 in the state. When the door needs to be locked, the electromagnet 32 is powered on, the adsorption end 312 of the rotating support rod 31 is adsorbed on the electromagnet 32, the rotating support rod 31 rotates around the bearing column, the clamping end 311 tilts up, the clamping end 311 blocks the sliding opening 16, when the door is opened, the door frame extrudes the triangular bolt head 22 to push the triangular bolt head into the lock shell 11, the triangular bolt body 21 slides in the sliding groove 15, one end of the sliding rod 23 slides towards the sliding opening 16 on the transverse part of the L-shaped baffle plate 14 through the first rolling shaft 232, but the sliding rod 23 cannot slide towards the sliding opening 16 due to the blocking of the sliding rod 23 by the clamping end 311, so that the sliding rod 23 abuts against the triangular bolt body 21 and the triangular bolt head 22, the triangular bolt head 22 cannot retract into the lock shell 11 and is continuously matched with the door frame, and the purpose of locking the door is achieved. When the door needs to be opened, the electromagnet 32 is powered off and the adsorption end 312 is loosened, the clamping end 311 falls down and does not block the sliding opening 16 any more, when the door frame extrudes the triangular bolt head 22, the sliding rod 23 can smoothly slide to the sliding opening 16 to the side edge, and the triangular bolt head 22 retracts into the lock shell 11, so that the door is opened. When the circuit is powered off accidentally, the electromagnet 32 loses magnetic force and cannot adsorb the adsorption end 312, so that the electric variable frequency electromagnetic lock can keep a smooth unlocking state under the condition of power failure. After the door is opened or closed, the sliding rod 23 is reset by the elastic potential energy stored in the torsion spring 231, and the triangular bolt body 21 drives the triangular bolt head 22 to extend out of the communication hole 121.
Example two:
the difference between the second embodiment and the first embodiment is that the triangular bolt head 22 includes a first bolt head 22a and a second bolt head 22b which have the same shape and are oppositely arranged, the triangular bolt head 22 has a straight surface 221 and an inclined surface 222, and the first bolt head 22a and the second bolt head 22b are both arranged with the straight surface 221 facing outwards and the inclined surface 222 facing inwards.
Specifically, the bolt head I22 a and the bolt head II 22b which are identical in shape and oppositely arranged can enable the electric frequency conversion electromagnetic lock of the machine to be used in both directions without distinguishing the door opening direction and the door closing direction, when one triangular bolt head 22 contacts a door frame, the door frame firstly extrudes a straight surface 221 of the door frame and enables the door frame to rotate inwards, the door frame then contacts an inclined surface 222 of the other triangular bolt head 22, and because the straight surface 221 of the second triangular bolt head 22 is matched with the panel 12 to enable the door frame not to rotate outwards, the door frame is matched with the inclined surface 222 of the second triangular bolt head 22, so that the whole triangular bolt part 2 retracts into the lock shell 11, and the door opening or closing operation is realized.
Example three:
the difference between the third embodiment and the first embodiment is that a semicircular projection 223 is arranged at the rotating connection position of the triangular bolt head 22.
Specifically, when the cam bolt head 22 contacts and rotates with the door frame, the side edge of the semicircular projection 223 contacts with the inner side of the outer connection surface 111, and the cam bolt head 22 retracts into the lock case through the lever principle, thereby facilitating the door opening and closing operation.
Example four:
the fourth embodiment is different from the first embodiment in that a reset hole 313 is formed in the middle of the rotating support rod 31 near the clamping end 311, a rivet column 314 is arranged on the inner wall of the lock case 11 corresponding to the reset hole 313, a reset spring 315 is arranged on the rivet column 314, the rivet column 314 extends into the reset hole 313, and the reset spring 315 is connected with the reset hole 313.
Specifically, when the electromagnet 32 loses the magnetic force, the suction end 312 needs to be lifted, and the engaging end 311 needs to fall, so that the engaging end 311 does not block the sliding opening 16. When the electromagnet 32 adsorbs the adsorption end 312, the reset spring 315 is stretched to store elastic potential energy, when the electromagnet 32 loosens the adsorption end, the elastic potential energy of the reset spring 315 is released to pull down the clamping end 311, so that the reset of the rotating support rod 31 is completed, and after the reset, the reset spring 315 is located in the reset hole 313, so that excessive space cannot be occupied, the riveting column 314 can ensure that the stretched shape of the reset spring 315 keeps a straight line, and the reset spring 315 can be smoothly contracted into the reset hole 313.
Example five:
the difference between the fifth embodiment and the first embodiment is that the third roller 316 is disposed on the clamping end 311.
Specifically, when the local electrical variable frequency electromagnetic lock is in an unlocked state, the sliding rod 23 can slide out of the sliding port 16, but the torsion spring 231 exerts pressure on the sliding rod 23, so that the sliding rod 23 and the first rolling shaft 232 are tightly pressed on the transverse part of the L-shaped baffle 14, when the sliding rod 23 slides out of the sliding port 16, the first rolling shaft 232 may be clamped between the transverse part of the L-shaped baffle 14 and the clamping end 311, which causes a failure in smooth unlocking and a mechanical failure, and the third rolling shaft 316 can roll when the first rolling shaft 232 is in contact, so that the sliding rod 23 slides smoothly, thereby ensuring the smooth operation of the local electrical variable frequency electromagnetic lock; when the sliding rod 23 is reset, the third roller 316 can also be reset smoothly, so as to ensure that the cam bolt head 22 is not blocked in the lock case 11, which results in the door being unable to be closed.
What has been described herein is merely a preferred embodiment of the utility model, and the scope of the utility model is not limited thereto. Modifications, additions, or substitutions by those skilled in the art to the specific embodiments described herein are intended to be within the scope of the utility model.