CN104975755B - Anti-theft structure for inner handle of door lock - Google Patents
Anti-theft structure for inner handle of door lock Download PDFInfo
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- CN104975755B CN104975755B CN201510392804.5A CN201510392804A CN104975755B CN 104975755 B CN104975755 B CN 104975755B CN 201510392804 A CN201510392804 A CN 201510392804A CN 104975755 B CN104975755 B CN 104975755B
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Abstract
The invention relates to a structure of a theft-proof door lock, and provides a theft-proof structure of an inner handle of a door lock, which can ensure quick opening and enhance a theft-proof function. The technical scheme is that the rear handle comprises a rear handle sleeve, a square core reset spring, a square core rotating piece, a jacking pipe, a square core, two handle pins, a rear handle and a rear handle button; one end of the rear handle is provided with a first handle cavity and a second handle cavity, a rear handle button and a button Guan Qianru of the rear handle are arranged in the second handle cavity, and the rear handle glove and the square core rotating piece are embedded in the first handle cavity; the square core reset spring separates the rear handle sleeve from the square core rotating piece, so that the handle idles to realize the anti-theft function, the rear handle button is pressed, the rear handle sleeve and the square core rotating piece are clamped by the top tube to unlock, and the anti-theft device is simple, convenient and easy to use and has reliable anti-theft performance.
Description
Technical Field
The invention relates to a structure of a theft-proof door lock, in particular to an inner handle theft-proof structure of a door lock.
Technical Field
The most commonly used mechanical anti-theft door lock at present can be opened only by rotating a key to retract the dead bolt after the dead bolt (anti-theft lock tongue) is brought out by using the key outside the door, so that people in the door can not be opened rapidly under emergency situations. In order to ensure quick opening and safe escape under emergency conditions, an electronic anti-theft lock is basically adopted on a household anti-theft door, in particular to an electronic anti-theft lock, and the anti-theft lock can realize quick locking and quick opening. The quick lock is that the resident lifts the outer handle upwards outside the door after going out of the door, so that the dead bolt of the lock body extends out of the lock, and the lock is locked without rotating the key clockwise as the common lock; meanwhile, the handle in the door can be lifted and locked. The quick opening is that a user presses down the handle in the door, so that the inclined tongue, the dead tongue and the safety tongue can be retracted (opened) simultaneously, the anti-theft door is opened quickly, the function of safe escape is realized, and the lock body with the function is locked in the door without a lock core. However, the characteristic that the rear handle of the anti-theft door lock can be pressed down to directly open the door has a huge potential safety hazard. In the prior art, a door opening means is used for theft, namely a cat eye on the door is poked inwards firstly, then a bendable connecting rod is extended from the cat eye, and the door can be opened after the cat eye is propped against an inner handle and then is pressed down; if no cat eye exists on the door, the connecting rod can also extend into the door gap below the door, and the door can be opened by pulling down after the inner handle is taken.
In order to solve the above-mentioned potential safety hazard, some electronic anti-theft door locks on the market at present use the circuit to solve this problem, the common practice is: an electronic key is arranged on the rear panel of the lock, after the key is pressed, a control circuit in the lock body drives the clutch to act so as to enable the handle to be meshed with the square core, and the handle is rotated again to unlock, otherwise, the clutch cannot act, and the handle idles. This approach has two disadvantages: firstly, the use is inconvenient, the user needs to do two actions when opening the door, and firstly, the user presses a key and then rotates a handle, which is more troublesome than the traditional door opening mode; secondly, there is a greater potential safety hazard, the door is opened from the room and the clutch is controlled to act by a circuit, and once a fire disaster occurs or other reasons cause circuit faults, people cannot open the door from the room, serious safety accidents are easily caused, and the door is a quite serious design defect.
Disclosure of Invention
The invention aims to improve the major defects in the prior art and provides an anti-theft structure of a door lock inner handle, which can ensure quick opening and enhance anti-theft function.
The technical scheme adopted by the invention is that the rear handle is provided with a rear handle glove, a square core reset spring, a square core rotating piece, a jacking pipe, a square core, two handle pins, a rear handle and a rear handle button; a square core through hole is formed in the center of the rear handle sleeve so that the square core passes through the square core through hole, a handle sleeve embedding block, a handle sleeve embedding ring, a handle sleeve clamping groove and a reset spring positioning hole A are formed in the rear end of the rear handle sleeve, and a handle sleeve pin hole is formed in the middle of the rear handle sleeve; the center of the square core rotating piece is provided with a square core embedding hole which is embedded with the square core, the front end of the square core rotating piece is provided with a rotating piece clamping tenon which can be clamped with the handle sleeve clamping groove, the square core rotating piece is also provided with a reset spring positioning hole B, and the rear end of the square core rotating piece is provided with a rotating piece reset tenon; positioning columns are arranged at two ends of the square core reset spring and are respectively inserted into the reset spring positioning holes A and B; one end of the rear handle is provided with a first handle cavity and a second handle cavity, a handle embedding groove, a handle pin hole and a reset stop block are arranged in the first handle cavity, a button limiting ring and a guide rib are arranged in the second handle cavity, and a first guide inclined plane is arranged at the end part of the guide rib; one end of the rear handle button is provided with a button locking ring and a guide groove, and one end of the guide groove is provided with a second guide inclined plane; the rear handle button and the item Guan Qianru are arranged in a second handle cavity, and the rear handle sleeve and the square core rotating piece are embedded in a first handle cavity; the handle sleeve embedding block is embedded in the handle sleeve embedding groove, and the handle pin penetrates through the handle pin hole and the handle sleeve pin hole respectively.
When the button of the rear handle is pressed, under the action of the guide rib and the guide groove, the button locking ring is propped against the jacking pipe to move downwards, after the elasticity of the square core reset spring is overcome, the rotating piece clamping tenon of the square core rotating piece is clamped into the clamping groove of the handle sleeve, so that the rear handle sleeve and the square core rotating piece are in a clamping state, and the rear handle can drive the square core to rotate after rotating at the moment, thereby realizing unlocking of the door lock and quite convenient unlocking. The rear handle button is not pressed, and the square core reset spring separates the rear handle sleeve from the square core rotating piece, so that the rear handle sleeve is in a separation state with the square core rotating piece, the rear handle is in an anti-theft mode, and the rear handle cannot be driven to rotate by rotating the rear handle at the moment, namely, the rear handle idles and cannot be unlocked, so that the anti-theft function of the rear handle is realized.
Pressing the back handle button makes the guide rib and the guide groove misplaced by 90 degrees of left or right-handed button, and the guide rib is propped against the button locking ring to realize the locking of the handle button, and the back handle sleeve and the square core rotating piece are always in a clamping state, and can be unlocked only by pressing the back handle, and the state is a back handle button locking mode. To unlock the locking mode of the rear handle button, the rear handle button can be ejected by pressing the rear handle button to rotate reversely by 90 degrees, and the anti-theft function of the rear handle is recovered.
The invention has the beneficial effects that through the scheme, when the back handle button is pressed to open the door, the person can hold the back handle and press the back handle button by thumb, the door opening action is finished at one time, the back handle is lifted and locked without pressing the back handle button, and the door opening action has no violating and feeling with daily habits. After the door is opened, the rear handle button automatically pops up, so that the anti-theft performance of the door lock is effectively enhanced; the rear handle button can be locked or unlocked according to the user requirement, so that the usability of the door lock is enhanced.
Drawings
FIG. 1 is a perspective view of the invention in an exploded state;
FIG. 2 is a schematic perspective view of a rear handle sleeve of the present invention;
FIG. 3 is a schematic perspective view of a square core turning piece according to the present invention;
FIG. 4 is a schematic perspective view of a rear handle button of the present invention;
FIG. 5 is a schematic perspective view of a rear handle of the present invention;
FIG. 6 is a front view of the present invention in an assembled state and in an anti-theft mode;
FIG. 7 is a schematic view in section A-A of FIG. 6;
FIG. 8 is a schematic view in section B-B of FIG. 7;
FIG. 9 is a schematic view of the present invention in an open state;
FIG. 10 is a schematic view of the handle button lock mode of the present invention.
The reference numerals in the figures are:
the handle comprises a rear handle sleeve, a square core through hole 11, a handle sleeve embedding block 12, a handle sleeve embedding ring 13, a handle sleeve clamping groove 14, a reset spring positioning hole A15 and a handle sleeve pin hole 16;
2-square core reset springs and 21-positioning columns;
3-square core rotating plates, 31-square core embedding holes, 32-rotating plate clamping tenons, 33-reset spring positioning holes B and 34-rotating plate reset tenons;
4-jacking pipes;
5-square core;
6-handle pins;
7-rear handle, 71-first handle cavity, 711-handle sleeve embedding groove, 712-handle pin hole, 713-reset stop, 72-second handle cavity, 721-button limiting ring, 722-guide rib, 7221-first guide inclined plane;
8-a rear handle button; 81-button locking ring, 82-guide slot, 821-second guide slope.
Detailed Description
The invention can be implemented by the following modes:
as shown in fig. 1, the invention is provided with a rear handle sleeve 1, a square core reset spring 2, a square core rotating piece 3, a top pipe 4, a square core 5, two handle pins 6, a rear handle 7 and a rear handle button 8. Positioning columns 21 are arranged at two ends of the square core reset spring 2.
As shown in fig. 2, a square core through hole 11 is formed in the center of the rear handle sleeve 1, a handle sleeve embedding block 12, a handle sleeve embedding ring 13, a handle sleeve clamping groove 14 and a reset spring positioning hole a15 are formed in the rear end, and a handle sleeve pin hole 16 is formed in the middle of the rear handle sleeve 1.
As shown in fig. 3, a square core embedding hole 31 is formed in the center of the square core rotating piece 3 and is embedded with the square core 5, a rotating piece clamping tenon 32 is formed at the front end of the square core rotating piece 3 and can be clamped with the handle sleeve clamping groove 14, a reset spring positioning hole B33 is further formed, and a rotating piece reset tenon 34 is formed at the rear end of the square core rotating piece 3.
As shown in fig. 4, the rear handle button 8 is provided at one end thereof with a button lock ring 81 and a guide groove 82, and the guide groove 82 is provided at one end thereof with a second guide slope 821.
As shown in fig. 5, one end of the rear handle 7 is provided with a first handle cavity 71 and a second handle cavity 72, a handle sleeve embedding groove 711, a handle pin hole 712 and a reset stop 713 are arranged in the first handle cavity 71, a button limiting ring 721 and a guide rib 722 are arranged in the second handle cavity 72, and a first guide inclined plane 7221 is arranged at the end part of the guide rib 722.
As shown in fig. 6 to 8, the rear handle button 8 and the push pipe 4 are embedded in the second handle cavity 72, and the rear handle glove 1 and the square core rotary piece 3 are embedded in the first handle cavity 71; the handle sleeve caulking ring 13 is embedded in the first handle cavity 71, the handle sleeve caulking block 12 is embedded in the handle sleeve caulking groove 711, and the handle pin 6 respectively penetrates the handle pin hole 712 and the handle sleeve pin hole 16 to pin the rear handle 1 and the rear handle 7. The square core 5 is embedded in a square core embedding hole 31 in the center of the square core rotating piece 3, penetrates through a square core through hole 11 in the center of the rear handle sleeve 1, and positioning columns 21 at two ends of the square core reset spring 2 are respectively inserted into a reset spring positioning hole A15 and a reset spring positioning hole B33. When the rear handle button 8 is not pressed, the square core reset spring 2 separates the rear handle sleeve 1 from the square core rotating piece 3, so that the rear handle sleeve 1 and the square core rotating piece 3 are in a separated state, the rear handle is in an anti-theft mode, and the rear handle 7 cannot drive the square core 5 to rotate at the moment, namely, the rear handle 7 idles and cannot be unlocked, so that the anti-theft function of the rear handle 7 is realized.
As shown in fig. 9, when the rear handle button 8 is pressed, under the action of the guide rib 722 and the guide groove 82, the button locking ring 81 abuts against the ejector tube 4 to move downwards, after the elasticity of the square core reset spring 2 is overcome, the rotating piece clamping tenon 32 of the square core rotating piece 3 is clamped into the handle sleeve clamping groove 14, so that the rear handle 1 and the square core rotating piece 3 are in a clamping state, and at the moment, the rear handle 7 can drive the square core 5 to rotate, so that the door lock is unlocked, and the door lock is quite convenient to open.
As shown in fig. 9 and 10, pressing the rear handle button 8 to turn left or right turns the button 90 ° to cause the guide rib 722 and the guide groove 82 to be displaced, the guide rib 722 is pressed against the button lock ring 81 to lock the handle button 8, the rear handle case 1 and the square core rotary piece 3 are always in the engaged state, and the rear handle 7 is unlocked only by pressing the rear handle, and this state is the rear handle button 8 locking mode. To unlock the locking mode of the rear handle button 8, the rear handle button 8 is ejected and the anti-theft function of the rear handle 7 is restored by only pressing the rear handle button 8 to rotate in the reverse direction by 90 degrees.
In summary, the outstanding substantive characteristics and remarkable progress of the invention are realized by the scheme, when the back handle button 8 is pressed to open the door, the back handle button 8 is exactly pressed by the thumb while holding the back handle 7 by the hand of a person, the back handle 7 is slightly pressed, the door opening action is finished at one time, the back handle 7 is lifted and locked without pressing the back handle button 8, and no violating and feeling is caused to daily habits. After the door is opened, the rear handle button 8 automatically pops up, so that the anti-theft performance of the door lock is effectively enhanced; the rear handle button 8 can also lock or unlock according to the user's needs, enhancing the usability of the door lock.
Claims (1)
1. An antitheft structure of an inner handle of a door lock is provided with a rear actuating glove, a square core reset spring, a square core rotating piece, a jacking pipe, a square core, two handle pins, a rear handle and a rear handle button, and is characterized in that: a square core through hole is formed in the center of the rear handle sleeve so that the square core passes through the square core through hole, a handle sleeve embedding block, a handle sleeve embedding ring, a handle sleeve clamping groove and a reset spring positioning hole A are formed in the rear end of the rear handle sleeve, and a handle sleeve pin hole is formed in the middle of the rear handle sleeve; the center of the square core rotating piece is provided with a square core embedding hole which is embedded with the square core, the front end of the square core rotating piece is provided with a rotating piece clamping tenon which can be clamped with the handle sleeve clamping groove, the square core rotating piece is also provided with a reset spring positioning hole B, and the rear end of the square core rotating piece is provided with a rotating piece reset tenon; positioning columns are arranged at two ends of the square core reset spring and are respectively inserted into the reset spring positioning hole A and the reset spring positioning hole B; one end of the rear handle is provided with a first handle cavity and a second handle cavity, a handle embedding groove, a handle pin hole and a reset stop block are arranged in the first handle cavity, and a button limiting ring and a guide rib are arranged in the second handle cavity; one end of the rear handle button is provided with a button locking ring and a guide groove; the rear handle button and the top pipe are embedded into a second handle cavity, and the rear handle sleeve and the square core rotating piece are embedded into a first handle cavity; the end part of the guide rib in the second handle cavity is provided with a first guide inclined plane, and one end of the guide groove of the rear handle button is provided with a second guide inclined plane; the handle sleeve embedding block is embedded into the handle sleeve embedding groove, and the handle pin penetrates through the handle pin hole and the handle sleeve pin hole respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392804.5A CN104975755B (en) | 2015-07-07 | 2015-07-07 | Anti-theft structure for inner handle of door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392804.5A CN104975755B (en) | 2015-07-07 | 2015-07-07 | Anti-theft structure for inner handle of door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104975755A CN104975755A (en) | 2015-10-14 |
| CN104975755B true CN104975755B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510392804.5A Active CN104975755B (en) | 2015-07-07 | 2015-07-07 | Anti-theft structure for inner handle of door lock |
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| Country | Link |
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| CN (1) | CN104975755B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239831B (en) * | 2015-10-30 | 2017-08-25 | 杭州六孚智能科技有限公司 | The push-pull mechanism of lockset |
| CN107724785B (en) * | 2017-10-21 | 2024-05-24 | 广东名门锁业有限公司 | Anti-theft handle structure |
| CN108005477B (en) * | 2017-11-15 | 2019-08-23 | 上海宇航系统工程研究所 | A kind of multifunctional lock device |
| CN107939158A (en) * | 2018-01-09 | 2018-04-20 | 中山市汇宝制锁有限公司 | A kind of new door lock |
| CN108457524A (en) * | 2018-05-30 | 2018-08-28 | 广东汇泰龙科技有限公司 | A kind of door lock with anti-opal unlocking function |
| CN114458087B (en) * | 2021-12-31 | 2023-06-06 | 广东名门锁业有限公司 | Handle assembly |
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| KR20130021822A (en) * | 2011-08-24 | 2013-03-06 | 탁동호 | Button type safety locking device of sliding door |
| CN202926009U (en) * | 2012-11-29 | 2013-05-08 | 青岛三链锁业有限公司 | Door lock with handles |
| CN203867287U (en) * | 2014-02-22 | 2014-10-08 | 何展鸿 | Three-rod type bathroom handle lock |
| CN204343802U (en) * | 2014-12-23 | 2015-05-20 | 中山贝尔思特制锁有限公司 | A kind of hand holding lock with anti-opal unlocking function |
| CN204782275U (en) * | 2015-07-07 | 2015-11-18 | 广东名门锁业有限公司 | Handle theftproof structure in lock |
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2015
- 2015-07-07 CN CN201510392804.5A patent/CN104975755B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009011097U1 (en) * | 2009-10-01 | 2009-12-31 | Fachhochschule Regensburg | Actuator with safety mechanism |
| KR20110130545A (en) * | 2010-05-28 | 2011-12-06 | 박지순 | Handle unit of door lock device and door lock device having it |
| KR20130021822A (en) * | 2011-08-24 | 2013-03-06 | 탁동호 | Button type safety locking device of sliding door |
| CN202249173U (en) * | 2011-09-19 | 2012-05-30 | 浙江豪普森生物识别应用有限公司 | Rear handle safety button mechanism |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104975755A (en) | 2015-10-14 |
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