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CN-224228518-U - Security alarm door

CN224228518UCN 224228518 UCN224228518 UCN 224228518UCN-224228518-U

Abstract

The utility model relates to the technical field of security doors and discloses a security alarm door which comprises a door frame and a door body hinged in the door frame, wherein a protection box and a magnetic attraction limiting component are respectively arranged at the rear end of the top of the door frame and the rear end of the top of the door body, an alarm switch body and a magnet component are sleeved in the protection box, a sliding rail fixed on the inner wall of the front end of the protection box is clamped on the front end surface of the magnet component, an iron transition rod penetrating through the top structure of the door frame is fixed at the top of the magnet component, and the top of the iron transition rod is connected with a magnetic attraction surface of the magnetic attraction limiting component. The magnetic attraction limiting component, the iron transition rod and the protection box are arranged to form the magnetic attraction linkage device, and after the magnetic attraction linkage device is subsequently combined with the magnet component, the alarm switch body, the door frame and the door body for use, the magnet component is separated from the alarm switch body, so that the alarm switch body is started to give an alarm on the premise that the door body is illegally opened, and potential safety hazards are eliminated.

Inventors

  • LAI WENJUN
  • CHEN RONGHUA
  • ZHOU XIAOLIANG

Assignees

  • 新余市中保比讯保安服务有限公司

Dates

Publication Date
20260512
Application Date
20250423

Claims (7)

  1. 1. The security alarm door comprises a door frame (1) and a door body (2) hinged inside the door frame (1), and is characterized in that a protection box (3) and a magnetic attraction limiting component (4) are respectively arranged at the rear end of the top of the door frame (1) and the rear end of the top of the door body (2), an alarm switch body (5) and a magnet component (6) are sleeved inside the protection box (3), a sliding rail (8) fixed on the inner wall of the front end of the protection box (3) is clamped on the surface of the front end of the magnet component (6), an iron transition rod (9) penetrating through the top structure of the door frame (1) is fixed at the top of the magnet component (6), and the top of the iron transition rod (9) is in magnetic attraction connection with a magnetic attraction surface of the magnetic attraction limiting component (4); The inner side of the rear end structure of the protection box (3) is provided with an installation groove communicated with the space of the installation groove, the installation groove is sleeved with a nonmetal cover plate (10), the interior of the nonmetal cover plate (10) is provided with a strip-shaped groove (11) aligned with the magnet component (6), the rear end surface of the magnet component (6) is fixedly provided with a linkage loop bar (14) sleeved in the strip-shaped groove (11), and the outer side of the protection box (3) is provided with a reset rod piece (13) which can be clamped with the linkage loop bar (14).
  2. 2. The security alarm door according to claim 1, wherein the magnetic attraction limiting part (4) is composed of a supporting sleeve frame and a magnet sleeved in a rear end structure of the supporting sleeve frame, a front end structure of the supporting sleeve frame is fixed on the rear end surface of the top of the door frame (1), the bottom surface of the magnet is arranged coplanar with the bottom surface of the rear end of the supporting sleeve frame, and the magnet can magnetically attract and connect the top end surface of the iron transition rod (9).
  3. 3. A security alarm door according to claim 1, wherein a buffer spring (7) is installed between the bottom surface of the magnet component (6) and the inner wall of the bottom of the protection box (3), an installation seat (12) is installed between the front end surface of the alarm switch body (5) and the front end inner wall of the protection box (3), the buffer spring (7) is in a stretched state after the magnet component (6) is aligned with the alarm switch body (5), and the alarm switch body (5) alarms after the alarm switch body (5) is out of alignment with the magnet component (6).
  4. 4. The security alarm door according to claim 1, wherein an inner hexagonal groove is formed in the linkage sleeve rod (14), the reset rod piece (13) comprises a hexagonal rod and a handle, one end of the hexagonal rod can be clamped with the inner hexagonal groove in the linkage sleeve rod (14), and the other end of the hexagonal rod is fixed with the middle of the handle.
  5. 5. The security alarm door according to claim 1, wherein the inner wall of the rear end of the mounting groove is provided with a threaded hole, a countersunk hole aligned with the threaded hole is formed in the nonmetal cover plate (10), and the nonmetal cover plate (10) and the rear end structure of the protection box (3) can be detachably mounted in a mode of sleeving the countersunk hole with a screw and then locking the countersunk hole with the threaded hole in a screw mode.
  6. 6. A security alarm door as set forth in claim 1, wherein ventilation slots (15) aligned with the alarm switch body (5) are provided in the nonmetallic cover plate (10), and the number of ventilation slots (15) is not less than two.
  7. 7. The security alarm door according to claim 1, wherein a reinforcing rod (16) is fixed in the protection box (3), and the rear end head of the reinforcing rod (16) is in fit connection with the front end surface of the nonmetallic cover plate (10) sleeved in the mounting groove.

Description

Security alarm door Technical Field The utility model relates to the technical field of security doors, in particular to a security alarm door. Background Compared with a normal anti-theft door, the security door is generally a cylinder lock core stronger than a C-level lock core, the technical unlocking time of the lock core is longer than that of the C-level lock core, and the security door has the design of automatic back locking, bidirectional anti-prying hooks and the like similar to the door closing. In recent years, with the increase of people's safety awareness and the safety demands of special environments, some auxiliary alarm devices are disclosed in the prior art for security doors. The magnetic part is encapsulated in plastic or alloy shell by magnet with correspondent magnetic field intensity, when the two parts are separated or approach to a certain distance, the switch is turned on and off to induce the change of object position and generate corresponding alarm information. However, in the combined use process of the security door and the door magnetic alarm, the switch and the magnet are mostly fixed on the door frame and the door body respectively. Although meeting basic use requirements, there are significant vulnerabilities. For example, an intruder can open and close the door body quickly and repeatedly, so that the false image of frequent alarm of the door magnetic alarm caused by faults can be easily created, and further, a user can directly close the door magnetic alarm to eliminate the frequent alarm phenomenon. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a security alarm door, which solves the problems set forth in the background art. The utility model provides the following technical scheme: the security alarm door comprises a door frame and a door body which is hinged inside the door frame, wherein a protection box and a magnetic attraction limiting component are respectively arranged at the rear end of the top of the door frame and the rear end of the top of the door body, an alarm switch body and a magnet component are sleeved inside the protection box, a sliding rail which is fixed on the inner wall of the front end of the protection box is clamped on the surface of the front end of the magnet component, an iron transition rod which penetrates through the top structure of the door frame is fixed at the top of the magnet component, and the top of the iron transition rod is connected with a magnetic attraction surface of the magnetic attraction limiting component; The inner side of the rear end structure of the protection box is provided with a mounting groove communicated with the space of the rear end structure, the mounting groove is sleeved with a nonmetal cover plate, the interior of the nonmetal cover plate is provided with a strip-shaped groove aligned with the magnet component, the rear end surface of the magnet component is fixedly provided with a linkage loop bar sleeved in the strip-shaped groove, and the outer side of the protection box is provided with a reset rod which can be clamped with the linkage loop bar. Preferably, the magnetic attraction limiting component is composed of a support sleeve frame and a magnet sleeved in the rear end structure of the support sleeve frame, the front end structure of the support sleeve frame is fixed on the rear end surface of the top of the door frame, the bottom surface of the magnet and the bottom surface of the rear end of the support sleeve frame are arranged in a coplanar mode, and the magnet can magnetically attract and connect the top end surface of the iron transition rod. Preferably, a buffer spring is installed between the bottom surface of the magnet component and the inner wall of the bottom of the protection box, a mounting seat is installed between the front end surface of the alarm switch body and the inner wall of the front end of the protection box, the buffer spring is in a stretched state after the magnet component is aligned with the alarm switch body, and the alarm switch body alarms after the alarm switch body is out of alignment with the magnet component. Preferably, the inside of linkage loop bar is provided with interior hexagonal groove, reset member includes hexagonal pole, handle, the one end of hexagonal pole can with the interior hexagonal groove joint in the linkage loop bar, and the other end of hexagonal pole is fixed with the middle part of handle. Preferably, the rear end inner wall of the mounting groove is provided with a threaded hole, the interior of the nonmetallic cover plate is provided with a countersink aligned with the threaded hole, and the nonmetallic cover plate and the rear end structure of the protection box can be detachably mounted in a mode of sleeving the screw and the countersink and then locking the nonmetallic cover plate and the threaded hole in a screw mode. Preferably, the ventilation grooves aligned with the alarm swit