CN102330510B - Anti-hooking mechanism for inner handle of antitheft door lock - Google Patents
Anti-hooking mechanism for inner handle of antitheft door lock Download PDFInfo
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- CN102330510B CN102330510B CN 201010245126 CN201010245126A CN102330510B CN 102330510 B CN102330510 B CN 102330510B CN 201010245126 CN201010245126 CN 201010245126 CN 201010245126 A CN201010245126 A CN 201010245126A CN 102330510 B CN102330510 B CN 102330510B
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- internal handle
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Abstract
The invention relates to an anti-hooking mechanism for an inner handle of an antitheft door lock. The anti-hooking mechanism comprises a handle limiting cover, a sliding plate, a sliding plate spring, and an anti-hooking knob, wherein the handle limiting cover is sheathed on a rotation axis and rotates along the rotation axis, the sliding plate is movably arranged on a lock surface, the sliding plate spring is connected with the sliding plate and the lock surface and has a pushing force for pushing the sliding plate towards the handle limiting cover, the anti-hooking knob is vertically arranged on the sliding plate, exposed out of the lock surface, and pulled to drive the sliding plate to be far away from the handle limiting cover, a lug is arranged at the front end of the sliding plate, close to the handle limiting cover, and a groove for holding the lug is arranged on the peripheral surface of the handle limiting cover along the radial direction. For the anti-hooking mechanism, a door can be opened only by unscrewing the anti-hooking knob at the inner side of the door so as to lead the sliding plate to move and the lug to leave the groove and then rotating the inner handle, and the anti-hooking knob is difficultly unscrewed outdoors due to limit of space, and the inner handle can rotate even after being hooked by a tool, therefore the safety is improved.
Description
Technical field
The present invention relates to the safe-guard door lock field, more particularly, relate to a kind of anti-hook mechanism of Internal handle of safe-guard door lock.
Background technology
Safe-guard door lock is installed in Men Shangke and realizes opening the door outdoors, also can open the door in the door.The common more complicated of opening the door outdoors needs mechanical key or electronic recognition portion such as gate inhibition's card, fingerprint recognition etc., shows that owner is in and open the door in the door, therefore need not to arrange complicated safety obstacle, and the Internal handle of revolving door inboard can open the door usually.The mechanism of opening the door in the safe-guard door lock inboard comprises locking face, the Internal handle that is contained on the inboard face and the door lock mechanism that is driven by rotating Internal handle, and Internal handle has the rotating shaft of vertically passing locking face, and rotating shaft is connected with door lock mechanism.When Internal handle is in the position of closing the door, the front end of door lock mechanism snaps in the areole of security door, and then security door is shut; When being rotated down Internal handle, rotating shaft drives the door lock mechanism action, makes door lock mechanism front end receding side cinclides, and security door can be opened.
Though the rotation Internal handle opens the door in the door and brings convenience to house owner people, has also brought potential safety hazard.Thief, robber may break the glass on the door or stretch into elongated instruments such as iron wires from other slits in hook draw Internal handle to make its rotation, also can realize opening the door.Therefore, the antitheft index of this safe-guard door lock is not high, dangerous.
Summary of the invention
The technical problem to be solved in the present invention is, do not have the not high defective of anti-hook mechanism, safety at the above-mentioned safe-guard door lock of prior art, and a kind of anti-hook mechanism of Internal handle of safe-guard door lock is provided.
The technical solution adopted for the present invention to solve the technical problems is: the anti-hook mechanism of Internal handle of constructing a kind of safe-guard door lock, be connected with the Internal handle that is contained in locking face, described Internal handle has the rotating shaft of passing described locking face and can rotate around described rotating shaft, the anti-hook mechanism of the Internal handle of described safe-guard door lock comprises and being enclosed within the described rotating shaft and with the handle limited cover of its rotation, activity is contained in the slide plate on the described locking face, connect described slide plate and locking face and have the skateboard spring of described slide plate being pushed to the thrust of described handle limited cover, vertically be contained on the described slide plate and be exposed to described locking face and be struck and drive described slide plate away from the anti-hook knob of described handle limited cover, the front end of the close described handle limited cover of described slide plate has projection, the peripheral surface of described handle limited cover radially offers the groove that holds described projection, and described Internal handle was in self-locking state when described projection inserted in the described groove.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, the anti-hook mechanism of the Internal handle of described safe-guard door lock also comprises anti-hook flap, and described anti-hook flap is connected by the flap spring that is in compressive state with described locking face.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, described flap spring is torsion spring, and described anti-hook flap rotates around described flap spring center line, described flap spring center line and described shaft parallel.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, the end that described anti-hook flap rotates is provided with the recessed button bit of indent, the side of the corresponding described recessed button bit of described slide plate is provided with the protruding button bit of projection, described protruding button bit snaps in the described recessed button bit, and this moment, the projection of described slide plate left described groove, and described Internal handle is in released state.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, described handle limited cover axially is provided with the groove of ccontaining described projection and the lug boss that increases gradually along circumferential radius successively along described rotating shaft.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, the other end that described anti-hook flap rotates has the protruding cambered surface that contacts with described lug boss, the lug boss formation cam mechanism that described protruding cambered surface and described circumferential radius increase gradually, described anti-hook flap rotate then under described cam mechanism promotes, and described Internal handle is in self-locking state.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, described skateboard spring is torsion spring, its both ends all are arranged on the described slide plate, the middle part of its distortion be set in that described locking face arranges one on post, offer the chute that radially extends to described rotating shaft on the described slide plate, describedly pass described chute and be arranged in described chute around post.
In the anti-hook mechanism of the Internal handle of safe-guard door lock of the present invention, on the described anti-hook knob connecting lever is housed, described connecting lever one end is fixedlyed connected with its rotation with described anti-hook knob, and the other end vertically is plugged in the described slide plate.
Implement the anti-hook mechanism of Internal handle of safe-guard door lock of the present invention, have following beneficial effect: this anti-hook mechanism anti-hook knob that requires to outward winding earlier makes that slide plate moves, projection leaves groove, Internal handle could rotate and open the door, the inevitable requirement door opener opens anti-hook knob when therefore opening the door in the door inboard, because the restriction in space, be difficult to open even be difficult to touch anti-hook knob outdoors thief, burglar, even if they have instrument to be hooked to Internal handle, Internal handle is obstructed and still can not rotates, and can not realize the action of opening the door.Therefore, adopt the present invention to have anti-hook function, effectively strengthened the safety of security door.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the part explosive view that the Internal handle of the safe-guard door lock of the preferred embodiment of the present invention is prevented hook mechanism;
Fig. 2 is the part mounting structure figure on the middle slide plate embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of middle handle limited cover embodiment illustrated in fig. 1.
The specific embodiment
The assembly that is used for opening the door from the door inboard of safe-guard door lock comprises locking face, the Internal handle that is contained on the inboard face and the door lock mechanism that is driven by rotating Internal handle, and Internal handle has the rotating shaft of vertically passing locking face, and rotating shaft is connected with door lock mechanism.When Internal handle is in the position of closing the door, the front end of door lock mechanism snaps in the areole of security door, and then security door is shut; When being rotated down Internal handle, rotating shaft drives the door lock mechanism action, makes door lock mechanism front end receding side cinclides, and security door can be opened.Because hook left Internal handle and makes its rotation in thief, robber may reach with iron wire or other elongated instrument, also can realize opening the door, therefore in order to improve the safety of security door, the present invention has designed the anti-hook mechanism of a kind of Internal handle for safe-guard door lock, can effectively prevent the generation of above-mentioned situation.
As Fig. 1, Fig. 2, shown in Figure 3, the anti-hook mechanism of the Internal handle of safe-guard door lock comprises handle limited cover 1, slide plate 5, skateboard spring 3 and anti-hook knob 7.
Wherein, as shown in Figure 3, there is through hole at the center of handle limited cover 1, and has the projection of two symmetries on the through-hole wall.Have the external peripheral surface suitable with the through hole radius in the rotating shaft, also have two recess of symmetry simultaneously at external peripheral surface, can just hold above-mentioned two projectioies respectively.Handle limited cover 1 is enclosed within on the external peripheral surface of rotating shaft by through hole, and two projectioies are inserted location in two recess respectively.Then work as Internal handle 11 together with rotating shaft axis rotation around the shaft, also will drive handle limited cover 1 and rotate synchronously.Stopping shim 12 and retaining nut 13 also are installed on the handle limited cover 1 successively, loosening to prevent handle limited cover 1.
The radial translation of slide plate 5 realizes by anti-hook knob 7 and skateboard spring 3.As shown in Figure 1 and Figure 2, radially offer two mounting holes on the slide plate 5 successively, one is used for installing skateboard spring 3, and another is used for installing anti-hook knob 7.Wherein, anti-hook knob 7 vertically passes the mounting hole on locking face 6, anti-hook seat 8 and the slide plate 5, and the one end exposes locking face 6 so that rotary manipulation, and the other end is arranged with a connecting lever 4.Connecting lever 4 is parallel to slide plate 5 plate faces, and an end fixedlys connected to rotate with it with anti-hook knob 7, and the other end vertically inserts in the manhole of offering on the slide plate 5.Because manhole is greater than connecting lever 4 ends of inserting manhole, also be provided with on the anti-hook seat 8 simultaneously and limit slide plate 5 along the side of rectilinear translation, therefore, though connecting lever 4 carries out the circumference swinging arm under the drive of anti-hook knob 7, final realization be slide plate 5 radially straight line move.
According to as can be known above, the anti-hook knob 7 of rotation orders about connecting lever 4 and drives slide plate 5 away from handle limited cover 1, and then projection 500 leaves groove 100, and then Internal handle 11 is in released state, free to rotate opening the door; And under normal conditions, hook knob 7 is prevented in inoperation, then relies on skateboard spring 3 that the projection 500 of slide plate 5 is pushed in the groove 100, and handle limited cover 1 is fastened, and Internal handle 11 can not rotate, and is in self-locking state, and whole safe-guard door lock namely has anti-hook function.
In the present embodiment, skateboard spring 3 adopts torsion springs, and its both ends all are arranged on the slide plate 5, the middle part of its distortion be set in locking face 6 set pass slide plate 5 another mounting holes one on post.Skateboard spring 3 is in compressive state and has torsion, and this torsion is not pushed slide plate 5 to the thrust of handle limited cover 1 for be not subjected to other external force effects following times at slide plate 5.Radially mobile in this mounting hole around post and skateboard spring 3 when slide plate 5 moves, therefore, this mounting hole has also constituted is convenient to the chute that moves around post.
Therefore, adopt said structure, can realize anti-hook function, it is at the state of closing the door, and under the thrust of skateboard spring 3, the projection 500 of slide plate 5 inserts the groove 100 of handle limited covers 1, and Internal handle 11 self-lockings and can not rotating can prevent from being rotated and opening the door by hook; In the time of need opening the door, need to rotate anti-hook knob 7, projection 500 withdraws from groove 100, and Internal handle 11 releases can be rotated Internal handle 11 and be opened the door.
If adopt said structure, when opening the door, need the anti-hook knob 7 of operation all the time to make it turn to the position of drawing back projection 500, bring certain trouble to operation, for further optimisation technique scheme, present embodiment also comprises anti-hook flap 9 and flap spring 10, as shown in Figure 1 and Figure 2.
As shown in Figure 2, anti-hook flap 9 is rotating fulcrum with the position that flap spring 10 is installed, and is the mutual near normal of two parts that mid point is divided into the fulcrum, and two vertical components are two vertical side edge of close slide plate 5 respectively.Wherein corresponding with the projection 500 of slide plate 5 part is higher than plane, slide plate 5 place, and the side that faces handle limited cover 1 is provided with protruding cambered surface 920.Another part of anti-hook flap 9 is concordant with plane, slide plate 5 place, and is provided with the recessed button bit 960 of indent towards the side of slide plate 5, then is provided with protruding protruding button bit 560 on the respective side of slide plate 5.When reverse anti-hook knob 7 make slide plate 5 away from handle limited cover 1 to certain distance, protruding button bit 560 snaps in the recessed button bit 960, slide plate 5 is lockable.Decontrol anti-hook knob 7, slide plate 5 still can not reset and enter groove 100.At this moment, Internal handle 11 is in released state.
Projection cambered surface 920 suffered thrusts come from the lug boss 120 that is arranged on handle limited cover 1 peripheral side.The axial location of lug boss 120 on handle limited cover 1 is higher than groove 100, and then groove 100 is corresponding with projection 500 positions on the slide plate 5, and the position of the protruding cambered surface 920 on lug boss 120 and the anti-hook flap 9 is corresponding.Lug boss 120 on handle limited cover 1 side along the circumferential direction the distance from shaft axis increase gradually, keep constant until reaching a certain size back, be similar to cam.When protruding cambered surface 920 contacts with lug boss 120, lug boss 120 rotates with Internal handle 11, and then protruding cambered surface 920 increases gradually apart from the distance of shaft axis, is similar to cam mechanism.Therefore protruding cambered surface 920 pushed away from rotating shaft and moves to slide plate 5, and then the other end of anti-hook flap 9 rotates and makes recessed button bit 960 leave protruding button bit 560, and slide plate 5 will only be subjected to the thrust of skateboard spring 3.
Therefore, adopt this preferred embodiment:
When closing the door state, protruding, recessed button bit staggers and does not fasten, and slide plate 5 is subjected to skateboard spring 3 thrust, and the projection 500 of its front end snaps in the groove 100 of handle limited cover 1, Internal handle 11 self-lockings;
In the time of need opening the door, the anti-hook knob 7 of outwarding winding, connecting lever 4 drives slide plate 5 away from handle limited cover 1, projection 500 leaves groove 100, Internal handle 11 releases can be rotated, and protruding button bit 560 buckles in the recessed button bit 960 and to limit slide plate 5 and can not reset, and skateboard spring 3 further by compression;
Rotating Internal handle 11 opens the door, the lug boss 120 that drives simultaneously on the handle limited cover 1 rotates, lug boss 120 promotes protruding cambered surface 920 away from rotating shaft, anti-hook flap 9 rotates, and recessed button bit 960 is away from throwing off with protruding button bit 560, and slide plate 5 is removed the constraint of button bit, in 500 reaches of skateboard spring 3 thrust lower protruding blocks, reset after Internal handle 11 is unblanked, projection 500 inserts in the groove 100, and Internal handle 11 is the anti-hook of self-locking again.
In summary, the Internal handle of safe-guard door lock of the present invention is prevented hook mechanism, the moving Internal handle 11 of revolution will enter self-locking state, but the anti-hook knob 7 just releases of rotation, the door opener must in propria persona just can carry out opening door operation in the door inboard, even only be hooked to Internal handle 11 with elongate tool, Internal handle 11 can not rotate, therefore the safety that has improved security door.Simultaneously, the present invention's campaign is reliable, and is simple and compact for structure, modularization, and the function practicality is suitable for producing in enormous quantities.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (8)
1. the Internal handle of a safe-guard door lock is prevented hook mechanism, be connected with the Internal handle that is contained in locking face (6) (11), described Internal handle (11) has the rotating shaft of passing described locking face (6) and can rotate around described rotating shaft, it is characterized in that, the anti-hook mechanism of the Internal handle of described safe-guard door lock comprises and being enclosed within the described rotating shaft and with the handle limited cover (1) of its rotation, activity is contained in the slide plate (5) on the described locking face (6), connect described slide plate (5) and locking face (6) and have the skateboard spring (3) of described slide plate (5) being pushed to the thrust of described handle limited cover (1), vertically being contained in described slide plate (5) goes up and is exposed to described locking face (6) and is struck and drives described slide plate (5) away from the anti-hook knob (7) of described handle limited cover (1), the front end of the close described handle limited cover (1) of described slide plate (5) has projection (500), the peripheral surface of described handle limited cover (1) radially offers the groove (100) that holds described projection (500), described projection (500) insert described groove (100) when interior described Internal handle (11) be in self-locking state.
2. the Internal handle of safe-guard door lock according to claim 1 is prevented hook mechanism, it is characterized in that, the anti-hook mechanism of the Internal handle of described safe-guard door lock also comprises anti-hook flap (9), and described anti-hook flap (9) is connected by the flap spring (10) that is in compressive state with described locking face (6).
3. the Internal handle of safe-guard door lock according to claim 2 is prevented hook mechanism, it is characterized in that, described flap spring (10) is torsion spring, and described anti-hook flap (9) rotates around described flap spring (10) center line, described flap spring (10) center line and described shaft parallel.
4. the Internal handle of safe-guard door lock according to claim 3 is prevented hook mechanism, it is characterized in that, the end that described anti-hook flap (9) rotates is provided with the recessed button bit (960) of indent, the side of the corresponding described recessed button bit (960) of described slide plate (5) is provided with the protruding button bit (560) of projection, described protruding button bit (560) snaps in the described recessed button bit (960), and the projection (500) of described slide plate this moment (5) leaves described groove (100), and described Internal handle (11) is in released state.
5. the Internal handle of safe-guard door lock according to claim 4 is prevented hook mechanism, it is characterized in that described handle limited cover (1) axially is provided with the groove (100) of ccontaining described projection (500) and the lug boss (120) that increases gradually along circumferential radius successively along described rotating shaft.
6. the Internal handle of safe-guard door lock according to claim 5 is prevented hook mechanism, it is characterized in that, the other end that described anti-hook flap (9) rotates has the protruding cambered surface (920) that contacts with described lug boss (120), lug boss (120) the formation cam mechanism that described protruding cambered surface (920) and described circumferential radius increase gradually, described anti-hook flap (9) rotate then under described cam mechanism promotes, and described Internal handle (11) is in self-locking state.
7. the Internal handle of safe-guard door lock according to claim 1 is prevented hook mechanism, it is characterized in that, described skateboard spring (3) is torsion spring, its both ends all are arranged on the described slide plate (5), the middle part of its distortion be set in that described locking face (6) arranges one on post, described slide plate offers the chute that radially extends to described rotating shaft on (5), describedly passes described chute and is arranged in described chute around post.
8. the Internal handle of safe-guard door lock according to claim 1 is prevented hook mechanism, it is characterized in that, one connecting lever (4) is housed on the described anti-hook knob (7), and described connecting lever (4) one ends are fixedlyed connected with its rotation with described anti-hook knob (7), and the other end vertically is plugged in the described slide plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010245126 CN102330510B (en) | 2010-08-04 | 2010-08-04 | Anti-hooking mechanism for inner handle of antitheft door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010245126 CN102330510B (en) | 2010-08-04 | 2010-08-04 | Anti-hooking mechanism for inner handle of antitheft door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102330510A CN102330510A (en) | 2012-01-25 |
| CN102330510B true CN102330510B (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010245126 Active CN102330510B (en) | 2010-08-04 | 2010-08-04 | Anti-hooking mechanism for inner handle of antitheft door lock |
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| Country | Link |
|---|---|
| CN (1) | CN102330510B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541605A (en) * | 2019-09-29 | 2019-12-06 | 广东科徕尼智能科技有限公司 | Lock panel with limiting structure and lock |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061068A (en) * | 2002-12-30 | 2004-07-07 | 주식회사 캡스테크 | Appratus for handle-latch and handle-switch in door-lock |
| CN201810042U (en) * | 2010-08-04 | 2011-04-27 | 深圳市同创新佳科技有限公司 | Inner handle anti-hooking mechanism of antitheft door lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100096863A1 (en) * | 2008-10-16 | 2010-04-22 | Alco Ventures Inc. | Mechanical latch assembly for retractable screen doors and windows |
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2010
- 2010-08-04 CN CN 201010245126 patent/CN102330510B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061068A (en) * | 2002-12-30 | 2004-07-07 | 주식회사 캡스테크 | Appratus for handle-latch and handle-switch in door-lock |
| CN201810042U (en) * | 2010-08-04 | 2011-04-27 | 深圳市同创新佳科技有限公司 | Inner handle anti-hooking mechanism of antitheft door lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102330510A (en) | 2012-01-25 |
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