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CN-224213943-U - Electromagnetic lock and unmanned vending device

CN224213943UCN 224213943 UCN224213943 UCN 224213943UCN-224213943-U

Abstract

The utility model relates to the technical field of automatic vending, in particular to an electromagnetic lock and an unmanned vending device. The electromagnetic lock comprises a shell, an electromagnet, a lock tongue and an emergency piece, wherein the electromagnet is arranged in the shell and comprises a solenoid, an armature and a pressure spring, the armature is inserted into the solenoid and can move relative to the solenoid to form a first position and a second position, the first end of the armature is in transmission connection with the lock tongue, when the armature is positioned at the first position, the armature drives the lock tongue to extend out of the shell, when the armature is positioned at the second position, the armature drives the lock tongue to retract into the shell, the pressure spring is sleeved on the armature and is used for enabling the armature to always have a trend of moving towards the first position, the emergency piece is linear and extends along the movement direction of the armature, the first end of the emergency piece is connected with the second end of the armature, and the second end of the emergency piece extends out of the shell. The service life of the electromagnet is guaranteed by the electromagnetic lock, so that the service lives of the electromagnetic lock and the unmanned vending device using the electromagnetic lock are long.

Inventors

  • XU FENGBO
  • CUI WEISHENG
  • LI JIE
  • SHENG XIN
  • YANG JINXIN

Assignees

  • 威海新北洋数码科技有限公司
  • 山东新北洋信息技术股份有限公司

Dates

Publication Date
20260508
Application Date
20250411

Claims (10)

  1. 1. An electromagnetic lock is characterized by comprising a shell (1), an electromagnet (2), a lock tongue (3) and an emergency piece (4), wherein the electromagnet (2) is arranged in the shell (1), the electromagnet (2) comprises a solenoid (21), an armature (22) and a pressure spring (23), the armature (22) is inserted into the solenoid (21) and can move relative to the solenoid (21) to have a first position and a second position, a first end of the armature (22) is in transmission connection with the lock tongue (3) along the moving direction of the armature (22), the armature (22) drives the lock tongue (3) to extend out of the shell (1) when the armature (22) is positioned at the first position, the armature (22) drives the lock tongue (3) to retract into the shell (1) when the armature (22) is positioned at the second position, the pressure spring (23) is sleeved on the armature (22) and is used for enabling the armature (22) to always have a trend of moving towards the first position and the emergency piece (4) is in the first direction, the second end of the emergency part (4) extends out of the shell (1).
  2. 2. The electromagnetic lock according to claim 1, characterized in that the housing (1) comprises a first wall (113) and a second wall (121) arranged at opposite intervals along the movement direction of the armature (22), the second end of the emergency element (4) extends outside the housing (1) through the first wall (113), and the locking tongue (3) extends out of or retracts into the housing (1) from the second wall (121).
  3. 3. Electromagnetic lock according to claim 1, characterized in that the housing (1) comprises a first housing (11) and a second housing (12), the first housing (11) being provided with an opening, the second housing (12) being detachably connected to the first housing (11) and being adapted to close the opening, the electromagnet (2) further comprising a frame (24), the solenoid (21) being fixedly connected to the frame (24), the frame (24) being detachably connected to the first housing (11) through the opening.
  4. 4. An electromagnetic lock according to claim 3, characterized in that the first housing (11) is in a cuboid shape, the opening comprises a first opening (111) and a second opening (112) which are communicated with each other, the first housing (11) comprises a first wall (113) and a third wall (114) which are connected with each other in an included angle, the first wall (113) is arranged opposite to the first opening (111), the third wall (114) is arranged opposite to the second opening (112), a slot (105) is arranged on the first wall (113), the slot (105) is communicated with the second opening (112), the second housing (12) comprises a second wall (121) and a fourth wall (122) which are connected with each other in an included angle, the second wall (121) is used for closing the first opening (111), the fourth wall (122) is used for closing the second opening (112), a through hole (104) is arranged on the second wall (121), and the dead bolt (3) is extended out of the housing (1) or the dead bolt (4) from the slot (105).
  5. 5. The electromagnetic lock according to claim 4, further comprising a plug (6) and a power cord, wherein the plug (6) is embedded in the slot (105), the plug (6) and the emergency member (4) are arranged in parallel in the slot (105), a threading hole (61) is formed in the plug (6), a first end of the power cord is connected with the solenoid (21), and a second end of the power cord passes through the threading hole (61) and extends out of the housing (1).
  6. 6. The electromagnetic lock according to claim 4, wherein the second housing (12) further comprises a sleeve (123), the sleeve (123) is connected with the second wall (121), the sleeve (123) is coaxial and communicated with the via hole (104), the lock tongue (3) is in plug-in fit with the sleeve (123), and the lock tongue (3) is always located in the sleeve (123) when telescopic relative to the housing (1).
  7. 7. The electromagnetic lock according to any one of claims 1-6, characterized in that the armature (22) is in transmission connection with the bolt (3) through a connecting rod assembly (5), the connecting rod assembly (5) comprises a first connecting rod (51) and a second connecting rod (52), a first end of the first connecting rod (51) is hinged with a first end of the armature (22) through a first shaft (53), a second end of the first connecting rod (51) is hinged with a second connecting rod (52) through a second shaft (54), the second connecting rod (52) is rotatably mounted on the housing (1) through a pivot (55), the pivot (55) is arranged in parallel with the second shaft (54) at a distance, the second connecting rod (52) is also in transmission connection with the bolt (3), and when the armature (22) moves between the first position and the second position, the second connecting rod (52) is driven by the first connecting rod (51) to rotate around the pivot (55) to drive the second connecting rod (52) relative to the housing (1).
  8. 8. The electromagnetic lock according to any one of claims 1 to 6, characterized in that a first opening and a second opening are provided at both ends of the solenoid (21) along a movement direction of the armature (22), respectively, the first end of the armature (22) extends out of the solenoid (21) from the first opening, and the second end of the armature (22) extends out of the solenoid (21) from the second opening.
  9. 9. Electromagnetic lock according to any one of claims 1-6, characterized in that the emergency element (4) is a nylon rope.
  10. 10. The unmanned vending device is characterized by comprising a cabinet body (20), a cabinet door (30) and the electromagnetic lock according to any one of claims 1-9, wherein a goods taking port (201) is formed in the front portion of the cabinet body (20), an emergency port and an emergency cover (70) for sealing the emergency port are arranged on the top of the cabinet body (20), the cabinet door (30) is pivoted with the cabinet body (20), the cabinet door (30) can rotate around a pivot axis, the cabinet door (30) is provided with an opening position for opening the goods taking port (201) and a closing position for closing the goods taking port (201), a locking piece (40) is mounted on the cabinet door (30), the electromagnetic lock is mounted on the cabinet body (20), the second end of the emergency piece (4) extends into the emergency port, and when the cabinet door (30) is located at the closing position and the locking piece (3) stretches out, the locking piece (3) is matched with the locking piece (40) to lock the cabinet door (30).

Description

Electromagnetic lock and unmanned vending device Technical Field The utility model relates to the technical field of automatic vending, in particular to an electromagnetic lock and an unmanned vending device. Background Existing unmanned vending devices such as door opening self-taking cabinets, vending machines and the like generally adopt electromagnetic locks to lock cabinet doors. The electromagnetic lock is generally arranged on a cabinet body and comprises a shell, an electromagnet and a lock tongue, wherein the electromagnet and the lock tongue are arranged in the shell, the electromagnet comprises a solenoid, an armature and a pressure spring, the first end of the armature is inserted into the solenoid, the pressure spring is sleeved on the armature and is abutted against the solenoid, the pressure of the pressure spring enables the armature to always have a movement trend of extending out of the solenoid, when the solenoid is electrified, the armature is driven to retract against the pressure of the pressure spring, when the solenoid is powered off, the armature extends out under the pressure action of the pressure spring, the lock tongue is in transmission connection with the second end of the armature, when the armature stretches out and draws back, the lock tongue is driven to extend or retract relative to the shell, and the lock tongue is correspondingly arranged on a locking piece. In order to avoid the electromagnetic lock abnormal power failure to cause the cabinet door unable opening, current electromagnetic lock is equipped with emergent unblock structure generally, and emergent unblock structure is connected with the second end of armature, pulls emergent unblock structure when abnormal power failure and can make the spring bolt retract for the casing to make spring bolt and locking piece separation. However, when the electromagnetic lock pulls the emergency unlocking structure, the emergency unlocking structure forms an included angle with the acting force of the armature and the telescopic direction of the armature, so that the armature deflects relative to the solenoid when the armature stretches, one side of the armature can scratch the solenoid, the service life of the electromagnet can be influenced after long-time use, and the service life of the electromagnetic lock is low. Disclosure of utility model The utility model aims to provide an electromagnetic lock and an unmanned vending device so as to prolong the service life of the electromagnetic lock. To achieve the purpose, the utility model adopts the following technical scheme: The electromagnetic lock comprises a shell, an electromagnet, a lock tongue and an emergency piece, wherein the electromagnet is arranged in the shell, the electromagnet comprises a solenoid, an armature and a pressure spring, the armature is inserted into the solenoid and can move relative to the solenoid to form a first position and a second position, the first end of the armature is in transmission connection with the lock tongue along the moving direction of the armature, when the armature is positioned at the first position, the armature drives the lock tongue to extend out of the shell, when the armature is positioned at the second position, the armature drives the lock tongue to retract into the shell, the pressure spring is sleeved on the armature and is used for enabling the armature to always have a trend of moving towards the first position, the emergency piece is linear and extends along the moving direction of the armature, the first end of the emergency piece is connected with the second end of the armature, and the second end of the emergency piece extends out of the shell. Alternatively, the housing includes a first wall and a second wall disposed at opposite intervals along a moving direction of the armature, the second end of the emergency member extends out of the housing through the first wall, and the lock tongue extends out of or retracts into the housing from the second wall. Alternatively, the housing comprises a first housing and a second housing, the first housing is provided with an opening, and the second housing is detachably connected with the first housing and is used for closing the opening; the electromagnet further comprises a frame, the solenoid is fixedly connected with the frame, and the frame is detachably connected with the first shell through the opening. Alternatively, the first shell is in a cuboid shape, the opening comprises a first opening and a second opening which are mutually communicated, the first shell comprises a first wall and a third wall which are connected with each other through an included angle, the first wall is opposite to the first opening, the third wall is opposite to the second opening, a groove is formed in the first wall and is communicated with the second opening, the second shell comprises a second wall and a fourth wall which are connected with each other through an included angle, the