CN215255336U

CN215255336U - Back tension lock

Info

Publication number: CN215255336U
Application number: CN202023082653.9U
Authority: CN
Inventors: 唐江涛; 唐博; 唐雅
Original assignee: Hunan Ziwei Security Technology Co ltd
Current assignee: Hunan Ziwei Security Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-12-21
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a back tension lock, including a plurality of fixed tool to lock of setting on the door frame to and set up on the connecting rod respectively with every fixed tool to lock complex removal tool to lock, the connecting rod is installed in the door leaf and is connected with the aggregate unit, the aggregate unit other end is connected with the lock core, the lock core drives the connecting rod motion through the aggregate unit and realizes removing separately and the cooperation between tool to lock and the fixed tool to lock. Different with the tool to lock of general side direction installation, the utility model discloses install the dorsal part at the door, avoid lawless persons to contact the inner structure of tool to lock through side direction crack, improved the security of tool to lock. And the matching mode of the movable lock and the fixed lock enables the direction of the force borne by the fixed lock to be consistent with the direction of the tension force borne by the door, so that the stress stability of the structure is improved, and the difficulty of external force damage is increased.

Description

Back tension lock

Technical Field

The utility model relates to a tool to lock technical field especially relates to a back tension lock.

Background

The tool to lock on current door is generally installed in the door leaf side, because the door leaf side can not guarantee the laminating of totally sealed, utilizes this characteristic lawless persons can pry the spring bolt of tool to lock from the crack to reach the mesh of destroying the tool to lock. Through continuous research and test, the discovery can be hidden the tool to lock to the door leaf back and solve this problem. Because this tool to lock is located the door leaf rear, and what received when opening the door is the pulling force perpendicular to door leaf panel all around, so this application will be named this pulling force "back pulling force", the tool to lock that corresponds is named "back pulling force lock". In order to improve the safety of the existing lock, a rear tension lock is necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a back tension lock, including a plurality of fixed tool to lock of setting on the door frame to and set up on the connecting rod respectively with every fixed tool to lock complex removal tool to lock, the connecting rod is installed in the door leaf and is connected with the aggregate unit, the aggregate unit other end is connected with the lock core, the lock core drives the connecting rod motion through the aggregate unit and realizes removing separately and the cooperation between tool to lock and the fixed tool to lock.

Furthermore, the fixed lock is a lock bolt vertically installed on the inner wall surface of the door frame, and the movable lock is a sliding sheet provided with a diameter-variable hole.

Furthermore, the fixed lock is a reducing lock hole vertically arranged on the inner wall surface of the door frame, and the movable lock is a lock catch.

Furthermore, the lock bolt and the lock catch are both in nail-shaped structures.

Furthermore, a spring leaf is arranged on the door leaf and props against the diameter-variable hole on the sliding piece to prevent the sliding piece from moving.

Furthermore, the door frame is right-angled, and the door leaf is flat.

Furthermore, the door frame comprises a door frame section main body, a door frame convex part and a door frame concave part which are formed on the door frame section main body, and the door leaf comprises a door leaf section main body, and a door leaf convex part and a door leaf concave part which are formed on the door leaf section main body and matched with the door frame concave part in shape.

Furthermore, the cross sections of the door frame convex part and the door frame concave part are trapezoidal.

Furthermore, the door frame section main body and the door leaf section main body are both of hollow structures.

Furthermore, the linkage device comprises a first shifting piece, a second shifting piece, a rotating component and a rotating pin, wherein the first shifting piece is connected with the lock cylinder, the first shifting piece is hinged with the second shifting piece, the second shifting piece is hinged with the rotating component, the rotating component is installed on the lock box through the rotating pin, and the rotating component can control the connecting rod to move up and down.

Furthermore, the lock cylinder is opened by a key or intelligent identification technology.

Different with the tool to lock of general side direction installation, the utility model discloses install the dorsal part at the door, avoid lawless persons to contact the inner structure of tool to lock through side direction crack, improved the security of tool to lock. And the matching mode of the movable lock and the fixed lock enables the direction of the force borne by the fixed lock to be consistent with the direction of the tension force borne by the door, so that the stress stability of the structure is improved, and the difficulty of external force damage is increased. The door frame section bar main body is matched with the door leaf section bar main body in a trapezoidal concave-convex mode, and the effect of expanding a gap between the door leaf and the door frame when a lock picking tool is inserted from a door gap can be achieved, so that the door is prevented from being stolen and picked, and the safety of a door structure is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a schematic view of a door to which the present invention is applied;

FIG. 3 is a schematic view of another door in which the present invention is installed;

fig. 4 is a schematic diagram of a first embodiment of the present invention;

fig. 5 is a schematic diagram of a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second embodiment of the present invention;

fig. 8 is a schematic view illustrating an installation of a linkage according to a first embodiment of the present invention;

fig. 9 is a schematic view of the linkage assembly according to the second embodiment of the present invention;

FIG. 10 is a schematic view of the internal structure of a door in which the present invention is installed;

fig. 11 is a schematic view of the installation position of the spring plate according to the present invention.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

Example one

As shown in fig. 4, fig. 6, fig. 8 and fig. 10, the utility model provides a back tension lock, including a plurality of fixed tool to lock that set up on door frame 3 to and set up on connecting rod 8 respectively with every fixed tool to lock complex removal tool to lock, connecting rod 8 is installed in door leaf 2 and is connected with linkage 9, the linkage 9 other end is connected with lock core 7, lock core 7 drives connecting rod 8 through linkage 9 and moves and realize removing the part and the cooperation between tool to lock and the fixed tool to lock.

The fixed lock in this embodiment is a lock bolt 62 vertically installed on the inner wall surface of the door frame 3, and the movable lock is a slide sheet 61 provided with a diameter-variable hole.

The latch 62 is a nail-like structure.

The leaf 2 is provided with a spring piece 10, and the spring piece 10 is propped against the diameter-variable hole on the sliding piece 61. Therefore, the sliding piece 61 automatically locks the lock bolt 62 when the door is closed. When the door leaf 2 is closed, the spring leaf 10 contacts with the lock bolt 62, the lock bolt 62 triggers the spring leaf 10, and the sliding leaf 61 moves under the action of the spring force, so that the automatic locking of the sliding leaf 61 and the lock bolt 62 is realized.

The linkage device comprises a first shifting piece 91, a second shifting piece 92, a rotating member 94 and a rotating pin 93, wherein the first shifting piece 91 is connected with the lock cylinder 7, the first shifting piece 91 is hinged with the second shifting piece 92, the second shifting piece 92 is hinged with the rotating member 94, the rotating member 94 is installed on the lock box through the rotating pin 93, and the rotating member 94 can control the connecting rod 8 to move up and down.

The lock cylinder 7 is opened by a key or intelligent identification technology. The lock core 7 can be opened by a mechanical mode (such as a key and a dial-type digital coded lock), or can be opened automatically by adding an intelligent identification device through the intelligent identification device (such as digital codes and biological code unlocking technologies such as fingerprint identification, face identification and voice identification) and an opening mode combined between the two technologies (such as automatic opening and closing of a door realized by combining an electric motor and an identification technology).

The working principle of the embodiment is as follows: when the door leaf 2 and the door frame 3 are in a locked state, the smaller diameter section of the reducing hole on the sliding sheet 61 clamps the head of the lock bolt 62. When the door leaf 2 needs to be opened, the first shifting piece 91 can be driven to rotate by controlling the lock cylinder 7 to be opened, and the first shifting piece 91 controls the rotating member 94 to rotate through the second shifting piece 92. Since the rotation pin 93 is disposed in the middle of the second pulling piece 92, the rotation member 94 rotates to drive the connecting rod 8 to move downward, so that the sliding piece 61 mounted on the connecting rod 8 moves downward, and thus the larger diameter section of the variable diameter hole on the sliding piece 61 moves downward, and the diameter of the head of the lock bolt 62 is smaller than the maximum diameter of the larger diameter section of the variable diameter hole, so that the head of the lock bolt 62 can be easily separated from the sliding piece 61. The door leaf 2 is pulled to open the door.

Example two

As shown in fig. 5, 7, 9 and 10, the differences of the present embodiment based on the first embodiment are: the fixed lock is a reducing lock hole 64 vertically arranged on the inner wall surface of the door frame 3, and the movable lock is a lock catch 63. The lock hole 64 is a tapered hole.

The latch 63 is a nail-like structure.

The working principle of the embodiment is as follows: when the door 2 is locked with the door frame 3, the smaller diameter section of the lock hole 64 locks the head of the lock catch 63. When the door leaf 2 needs to be opened, the first shifting piece 91 can be driven to rotate by controlling the lock cylinder 7 to be opened, and the first shifting piece 91 controls the rotating member 94 to rotate through the second shifting piece 92. Since the rotation pin 93 is disposed at the middle portion of the second pick 92, the rotation member 94 rotates to drive the link 8 to move downward, so that the latch 63 mounted on the link 8 moves downward, and the diameter of the head of the latch 63 is smaller than the maximum aperture of the larger aperture section of the locking hole 64, so that the head of the latch 63 can be easily separated from the locking hole 64. The door leaf 2 is pulled to open the door.

As shown in fig. 3, the door frame 3 is rectangular, and the door 2 is flat.

As shown in fig. 1 and 2, the door frame 3 in all the above embodiments includes a door frame profile main body, and a door frame convex portion 32 and a door frame concave portion 31 formed on the door frame profile main body, and the door leaf 2 includes a door leaf profile main body, and a door leaf convex portion 21 and a door leaf concave portion 22 formed on the door leaf profile main body and matched with the door frame concave portion 31 and matched with the door frame convex portion 32.

The door frame protrusion 32 and the door frame recess 22 are both trapezoidal in cross section. The trapezoidal section bar can avoid lawless persons to contact the inner structure of tool to lock through side crack, also can effectively prevent lawless persons to utilize the instrument to enlarge the clearance between door leaf 2 and door frame 3.

The door frame section bar main body and the door leaf section bar main body are both of hollow structures.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A rear tension lock, characterized in that: the door lock comprises a plurality of fixed locks arranged on a door frame and movable locks arranged on connecting rods and matched with each fixed lock respectively, wherein the connecting rods are arranged in a door leaf and connected with a linkage device, the other end of the linkage device is connected with a lock cylinder, and the lock cylinder drives the connecting rods to move through the linkage device to realize separation and matching between the movable locks and the fixed locks.

2. A rear tension lock as claimed in claim 1, wherein: the fixed lock is a lock bolt vertically installed on the inner wall surface of the door frame, and the movable lock is a sliding sheet provided with a diameter-variable hole.

3. A rear tension lock as claimed in claim 2, wherein: the fixed lockset is a reducing lockhole vertically arranged on the inner wall surface of the door frame, and the movable lockset is a lock catch.

4. A rear tension lock as claimed in claim 2 or 3, wherein: the lock bolt and the lock catch are both in nail-shaped structures.

5. A rear tension lock as claimed in claim 2, wherein: the door leaf is provided with a spring leaf which is propped against the diameter-variable hole on the sliding piece to prevent the sliding piece from moving.

6. A rear tension lock as claimed in claim 1, wherein: the door frame is right-angled, and the door leaf is flat.

7. A rear tension lock as claimed in claim 1, wherein: the door frame comprises a door frame section main body, a door frame convex part and a door frame concave part, wherein the door frame convex part and the door frame concave part are formed on the door frame section main body, and the door leaf comprises a door leaf section main body and a door leaf convex part and a door leaf concave part which are formed on the door leaf section main body and matched with the door frame concave part in shape.

8. A rear tension lock as claimed in claim 7, wherein: the cross sections of the door frame protruding portion and the door frame recessed portion are both trapezoidal, and the door frame section bar main body and the door leaf section bar main body are both of hollow structures.

9. A rear tension lock as claimed in claim 1, wherein: the linkage device comprises a first shifting piece, a second shifting piece, a rotating member and a rotating pin, wherein the first shifting piece is connected with the lock cylinder, the first shifting piece is hinged with the second shifting piece, the second shifting piece is hinged with the rotating member, the rotating member is installed on the lock box through the rotating pin, and the rotating member is rotated to control the connecting rod to move up and down.

10. A rear tension lock as claimed in claim 1, wherein: the lock cylinder is opened by a key or an intelligent identification technology.