CN215255248U

CN215255248U - Back tension buckle formula pickproof door lock

Info

Publication number: CN215255248U
Application number: CN202121488669.1U
Authority: CN
Inventors: 唐江涛; 刘芳
Original assignee: Hunan Ziwei Security Technology Co ltd
Current assignee: Hunan Ziwei Security Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-21
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a back tension buckle formula security door lock, including installing the tool to lock in the door leaf and installing the hasp horizontal bar on the door frame, the tool to lock locks at door leaf inside cooperation with the hasp horizontal bar, and the tool to lock includes the tool to lock main part, is provided with the set bar in the tool to lock main part, and the set bar in-connection has the spring, and spring end connection has the spring bolt, and tool to lock main part one side still is provided with stop device, and stop device supports the trench that blocks of set bar. Because the lockset and the transverse latch bolt of the lock catch are matched and locked in the door leaf, compared with the prior common lockset, the utility model embeds the lockset in the door leaf, thereby enhancing the safety and effectively preventing the destructive unlocking of external force; the utility model discloses lock fast, constitute the part few, the cost of manufacture low.

Description

Back tension buckle formula pickproof door lock

Technical Field

The utility model relates to a tool to lock technical field especially relates to a back tension buckle formula pickproof 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, it is found that a special section bar can be designed, and the lock is hidden to the back of the door leaf made of the special section bar to solve the problem. The lock is positioned in the door leaf and at the rear side of the door leaf panel; different from the existing lock installed laterally, when a door leaf installed with the lock is opened manually, the reaction force formed by the lock is positioned behind a door leaf panel rather than laterally, so that the reaction force is named as 'back tension', and the lock forming the back tension is named as a back tension lock; how to save the part quantity, the control cost of tool to lock under the prerequisite of the fastness of assurance tool to lock security, structure, be the required problem of solving in the tool to lock field at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a back tension buckle formula security door lock, including installing the tool to lock in the door leaf and installing the hasp horizontal bar on the door frame, the tool to lock locks at door leaf inside cooperation with the hasp horizontal bar, the tool to lock includes the tool to lock main part, is provided with the set bar in the tool to lock main part, and the set bar in-connection has the spring, and spring end connection has the spring bolt, and tool to lock main part one side still is provided with stop device, and stop device supports the trench that blocks of set bar.

Furthermore, the lockset is connected to the linkage piece through a connecting rod.

Furthermore, one or more locksets are arranged on the linkage piece.

Furthermore, stop device includes the mounting panel, swivelling joint has spacing piece on the mounting panel, spacing piece one end supports the spring bolt bottom, and the other end and the spring coupling that contracts that rises, spring end fixed connection that contracts rises is on the mounting panel.

Furthermore, a U-shaped groove is formed in the matching position of the door leaf and the transverse locking bolt on the door frame.

Furthermore, a guide groove is formed in the lock body, a guide pin is arranged on the spring bolt, and the guide pin is placed in the guide groove.

Furthermore, the number and the positions of the transverse locking bolts correspond to those of the lockset one by one.

The utility model has the advantages that: because the lockset and the transverse latch bolt of the lock catch are matched and locked in the door leaf, compared with the prior common lockset, the utility model embeds the lockset in the door leaf, thereby enhancing the safety and effectively preventing the destructive unlocking of external force; the utility model discloses lock fast, constitute the part few, the cost of manufacture low.

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 top view of the internal structure of the present invention;

fig. 2 is a schematic structural view of the unlocking state of the present invention;

FIG. 3 is a schematic view of the internal structure of the lock in the unlocked state of the present invention;

fig. 4 is a schematic structural view of the locked state of the present invention;

fig. 5 is a schematic view of the internal structure of the lock in the locked state according to the present invention;

fig. 6 is a schematic three-dimensional structure diagram of the lock of the present invention;

fig. 7 is a schematic view of the structure of the door leaf of 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.

As shown in fig. 1-7, the utility model provides a back tension buckle formula pickproof lock, including installing tool to lock 1 in door leaf 6 and installing the horizontal bolt of hasp 4 on door frame 5, tool to lock 1 locks in door leaf 6 fit with the horizontal bolt of hasp 4, and tool to lock 1 includes tool to lock main part 110, has set bar 12 in the tool to lock main part 110, and set bar 12 in-connection has spring 19, and spring 19 end connection has spring bolt 11, and tool to lock main part 110 one side still is provided with stop device, and stop device supports the trench that blocks of set bar 12.

The lock 1 in this embodiment is connected to the link plate 2 through a connecting rod 17.

One or more locks 1 are arranged on the linkage piece 2 in the embodiment.

The limiting device in the embodiment comprises a mounting plate 18, a limiting sheet 15 is rotatably connected to the mounting plate 18, one end of the limiting sheet 15 abuts against the blocking slot of the lock bolt 12, the other end of the limiting sheet is connected with a lifting spring 16, and the end of the lifting spring 16 is fixedly connected to the mounting plate 18. The limiting piece 15 has the following functions: when the lock 1 is in the unlocked state, the limiting piece 15 can support the lock bolt 12 and the lock bolt 11, and the lock bolt 12 and the lock bolt 11 are prevented from moving downwards. When the bolt 11 is acted by external force, the bolt 11 moves downwards to press the limiting piece 15, the limiting piece 15 compresses the lifting spring 16, the limiting piece 15 is far away from the blocking groove position 121 of the lock bolt 12, the lock bolt 12 is separated from the blocking of the limiting piece 15 and moves upwards under the action of the tension spring 3, and when the lock bolt 12 and the bolt 11 move to the other side of the lock catch cross bolt 4, the lock bolt 11 does not block the lock bolt 12 and the bolt 11 due to the fact that the lock catch cross bolt 4 does not block the lock bolt 12 and the bolt 11, and therefore the bolt 11 moves upwards under the action of the spring 19 and the lock bolt 12 under the action of the tension spring 3 to achieve locking. When the lock bolt 12 and the latch 11 are reset to the initial position, the stopper piece 15 is pressed against the lock bolt 12 by the force of the retraction spring 16.

In this embodiment, a U-shaped groove 61 is provided at the matching position of the lock transverse bolt 4 on the door leaf 6 and the door frame 5. The U-shaped groove 61 is used for matching with the transverse locking bolt 4.

In this embodiment, the lock body 110 is provided with a guide groove 14, the locking tongue 11 is provided with a guide pin 13, and the guide pin 13 is placed in the guide groove 14. For limiting the movement of the latch bolt 11 so that the latch bolt 11 can only move vertically along the guide groove 14 while preventing the latch bolt 11 from being separated from the lock body 110 by the force of the spring 19.

The number and the positions of the transverse locking bolts 4 in the embodiment correspond to those of the lockset 1 one by one respectively. The cross bolt 4 should be correspondingly installed at the lowest position of the inclined surface of the bolt 11, so that when the bolt 11 moves towards the cross bolt 4, the higher surface of the inclined surface is squeezed, and the bolt 11 moves downwards.

The utility model discloses a theory of operation and working procedure as follows: as shown in fig. 2-3, the present invention is in the unlocking state, the lock tongue 11 is in the initial state, and the position-limiting piece 15 is pressed against the lock bolt 12 under the action of the lifting spring 16. When the door needs to be closed, the door leaf 6 approaches the door frame 5, the lock 1 in the door leaf 6 contacts the transverse latch bolt 4 on the door frame 5, the transverse latch bolt 4 presses the lock bolt 11 of the lock 1, the lock bolt 11 moves downwards to trigger the limiting device, the limiting piece 15 of the limiting device compresses the lifting spring 16, and the limiting piece 15 is far away from the lock bolt 12, as shown in fig. 4-5, when the lock bolt 12 and the lock bolt 11 move to the other side of the transverse latch bolt 4, as no transverse latch bolt 4 blocks the lock bolt 12 and the lock bolt 11, the lock bolt 11 moves upwards under the action of the spring 19 and the lock bolt 12 under the action of the tension spring 3 to realize locking. As shown in fig. 2-3, when a force is applied to the connecting rod 17 through a lock cylinder or a motor, the connecting rod 17 is connected to the linkage piece 2, one or more lock bolts 12 connected to the linkage piece 2 move downward together with the lock tongue 11, when the lock bolts 12 and the lock tongue 11 pass through the lower part of the transverse locking bolt 4, and the blocking slot 121 of the lock bolts 12 moves to exceed the limiting piece 15, the lock cylinder or the motor keeps the position, and when the door is opened by pulling a person, a key is released or the motor returns. When the blocking slot 121 of the lock bolt 12 returns to the tail end of the limiting piece 15, the limiting piece 15 pushes against the lock bolt 12 under the action of the lifting spring 16 to complete unlocking.

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. The utility model provides a back tension buckle formula burglary-resisting door lock which characterized in that, is including installing the tool to lock in the door leaf and installing the horizontal bolt of hasp on the door frame, the tool to lock locks at door leaf inside cooperation with the horizontal bolt of hasp, the tool to lock includes the tool to lock main part, is provided with the set bar in the tool to lock main part, and the set bar in-connection has the spring, and spring end connection has the spring bolt, and tool to lock main part one side still is provided with stop device, and stop device supports the trench that blocks of set bar.

2. The back tension snap-in security door lock according to claim 1, wherein: the lockset is connected to the linkage piece through a connecting rod.

3. The back tension snap-in security door lock according to claim 2, wherein: one or more locksets are arranged on the linkage piece.

4. The back tension snap-in security door lock according to claim 3, wherein: stop device includes the mounting panel, swivelling joint has spacing piece on the mounting panel, spacing piece one end supports the spring bolt bottom, and the other end and the spring coupling that contracts that rises, spring end fixed connection that contracts rises is on the mounting panel.

5. The back tension snap-in security door lock according to claim 4, wherein: and a U-shaped groove is formed in the matching position of the door leaf and the transverse lock catch bolt on the door frame.

6. The back tension snap-in security door lock according to claim 5, wherein: the lock is characterized in that a guide groove is formed in the lock body, a guide pin is arranged on the spring bolt, and the guide pin is placed in the guide groove.

7. The back tension snap-in security door lock according to claim 6, wherein: the number and the positions of the transverse lock catch bolts correspond to those of the lock respectively one by one.