Search

CN-117846419-B - Escape door lock

CN117846419BCN 117846419 BCN117846419 BCN 117846419BCN-117846419-B

Abstract

The invention discloses an escape door lock, which comprises a main lock body, a top-bottom lock and an unlocking device, wherein lock bolts are respectively arranged on the main lock body and the top-bottom lock, the unlocking device is connected with the main lock body, a transmission rod is arranged between the main lock body and the top-bottom lock, lock core rotating parts are respectively arranged on the main lock body and the top-bottom lock, the lock bolts are arranged on one side of the lock core rotating parts, the unlocking device is abutted to the other side of the lock core rotating parts, protruding rods are respectively arranged at the upper end and the lower end of the lock core rotating parts, through holes are formed in the end parts of the transmission rod, the protruding rods are inserted into the transmission rods through the through holes, and when the unlocking device is triggered, the lock core rotating parts in the main lock body rotate, and the lock core rotating parts in the main lock body drive the top-bottom lock through the transmission rods to rotate, so as to drive the lock bolts to retract synchronously. The escape door lock of the embodiment realizes transmission through rotation, reduces the times of motion conversion, simplifies a lock cylinder and a transmission structure, reduces parts, reduces manufacturing cost and effectively improves product competitiveness.

Inventors

  • Ouyang jintai

Assignees

  • 江门市思图万金属制品有限公司

Dates

Publication Date
20260508
Application Date
20231205

Claims (9)

  1. 1. The escape door lock comprises a main lock body, a top-bottom lock and an unlocking device, wherein lock bolts are respectively arranged on the main lock body and the top-bottom lock, the unlocking device is connected with the main lock body, and the unlocking device drives the main lock body to unlock when in action, and the escape door lock is characterized in that: a transmission rod is arranged between the main lock body and the top-bottom lock, The lock comprises a main lock body, a lock cylinder rotating part, a lock tongue, an unlocking device, a transmission rod, a protrusion and a lock tongue, wherein the lock cylinder rotating part is respectively arranged in the main lock body and the lock, the lock cylinder rotating part can rotate around an axis in the vertical direction, the lock tongue is movably arranged on one side of the lock cylinder rotating part, the unlocking device is abutted against the other side of the lock cylinder rotating part of the main lock body, the upper end and the lower end of the lock cylinder rotating part are respectively provided with the protrusion, the end of the transmission rod is provided with a through hole matched with the protrusion, the protrusion is inserted into the transmission rod through the through hole, when any one of the lock cylinder rotating part and the transmission rod rotates, the other one of the lock cylinder rotating part and the transmission rod is driven to synchronously rotate, the through hole of the transmission rod corresponds to a polygonal hole, or the protrusion is provided with a protrusion, the through hole of the transmission rod corresponds to the protrusion, and a groove matched with each other is arranged, and when the unlocking device is triggered, the unlocking device applies pressure to the rotating part of the main lock body, and the main lock body rotates, and the lock tongue is driven to synchronously rotate.
  2. 2. The escape door lock according to claim 1, wherein an inner bracket is respectively arranged on the main lock body and the top-bottom lock, the lock tongue is rotatably arranged on the inner bracket, and the lock core rotating member pushes the lock tongue to enable the lock tongue to rotate and retract when the lock core rotating member is driven to rotate by the unlocking device.
  3. 3. The escape door lock according to claim 1 or 2, wherein at least one of the key cylinder rotating members is provided with an elastic member for resetting the lock tongue and the key cylinder rotating member.
  4. 4. The escape door lock of claim 3, wherein the elastic member is a torsion spring.
  5. 5. The escape door lock according to claim 1 or 2, wherein at least one of the lock bolts is movably provided with a lock bolt buckle, and the lock core rotating member on the corresponding lock body is provided with a locking projection matched with the lock bolt buckle; When the lock cylinder rotating piece is driven to rotate by the unlocking device, the locking lug acts and releases the locking state of the lock tongue.
  6. 6. The escape door lock of claim 1, wherein the unlocking device is a push-type unlocking device.
  7. 7. The escape door lock according to claim 6, wherein a flat push cover is movably mounted on the flat push unlocking device, one end of the flat push cover is provided with a flat push transmission member, and the flat push transmission member is abutted against the lock cylinder rotating member.
  8. 8. The escape door lock according to claim 1, wherein the unlocking means is a push-down unlocking means.
  9. 9. The escape door lock according to claim 8, wherein the push-down unlocking means comprises a push handle and a rotation handle, the push handle is rotatably provided by the rotation handle, the main lock body is provided with a rotation transmission member for triggering the lock core rotation member to act, and one of the rotation handles is connected with the rotation transmission member and drives the rotation transmission member to rotate.

Description

Escape door lock Technical Field The invention relates to the field of escape locks, in particular to an escape door lock. Background The escape lock is also called a fire-fighting channel escape lock, is mainly used for doors of emergency exit channels in public places with large flow of people, such as supermarkets, markets, office buildings, hospitals, schools, factory buildings and the like, has the function of preventing external personnel from entering the interior without permission, and can achieve the effect of safely escaping from the interior personnel under emergency conditions, such as fire disasters and the like. The existing escape door lock is generally composed of a main lock body, a top-bottom lock and an unlocking device, wherein the unlocking device is connected with the main lock body, a lock core part of the main lock body is connected with the top-bottom lock through a pull rod, when a person triggers the unlocking device, the lock core of the main lock body acts to unlock, and meanwhile, the pull rod drives the top-bottom lock to act, so that synchronous unlocking is realized. But the existing main lock body and the world lock are connected by a pull rod to realize linkage, the pull rod adopts an action mode of up-and-down movement for transmission, namely, the main lock body needs to convert the action of an unlocking device into up-and-down movement and then drive the pull rod to act, and the transmission structure needs to convert the action for a plurality of times, so that the required parts are more, the structure is complex, the manufacturing cost and the manufacturing difficulty are both higher, and the market competitiveness is not facilitated. Therefore, there is a need for improvements in the lock cylinder and transmission structure between the main lock body and the top and bottom locks. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the escape door lock provided by the invention has the advantages that the transmission is realized through rotation between the lock cylinder rotating piece and the transmission rod, the times of motion conversion are reduced, the lock cylinder and the transmission structure are simplified, and the competitiveness is improved. According to an embodiment of the first aspect of the invention, the escape door lock comprises a main lock body, a top-bottom lock and an unlocking device, wherein the main lock body and the top-bottom lock are respectively provided with a lock tongue, the unlocking device is connected with the main lock body, the unlocking device drives the main lock body to unlock when in action, A transmission rod is arranged between the main lock body and the top-bottom lock, The main lock body and the world lock are respectively provided with a lock core rotating part, the lock core rotating part can rotate around the axis in the vertical direction, the lock tongue is movably arranged on one side of the lock core rotating part, the unlocking device is abutted against the other side of the lock core rotating part of the main lock body, the upper end and the lower end of the lock core rotating part are respectively provided with a convex rod, the end part of the transmission rod is provided with a through hole matched with the convex rod, the convex rod is inserted into the transmission rod through the through hole, When the unlocking device is triggered, the unlocking device applies pressure to the lock core rotating piece of the main lock body, the lock core rotating piece in the main lock body rotates, and the lock core rotating piece in the main lock body drives the lock core rotating piece of the top-bottom lock to synchronously rotate through the transmission rod, so that the lock tongue is driven to synchronously retract. The escape door lock has the advantages that the escape door lock is provided with the lock cylinder rotating piece and the transmission rod, the lock cylinder rotating piece can rotate around the axis in the up-down direction, the transmission rod is inserted into two ends of the lock cylinder rotating piece, and the lock cylinder rotating piece drives the lock cylinder rotating piece to rotate, so that transmission is realized through rotation. When the unlocking device is triggered, the lock core rotating piece in the main lock body rotates, and the lock core rotating piece of the world lock is driven to synchronously rotate through the transmission rod while the lock tongue of the main lock body is driven to act, so that the synchronous retraction of a plurality of lock tongues is realized. The transmission is realized through rotation, the times of motion conversion are reduced, the lock cylinder and the transmission structure are simplified, parts are reduced, the manufacturing cost is reduced, and the product competitiveness is effectively improved. According to some embodiments of the first aspect of the presen