CN104975757B - Automatic lock - Google Patents
Automatic lock Download PDFInfo
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- CN104975757B CN104975757B CN201410143376.8A CN201410143376A CN104975757B CN 104975757 B CN104975757 B CN 104975757B CN 201410143376 A CN201410143376 A CN 201410143376A CN 104975757 B CN104975757 B CN 104975757B
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- plate
- bolt
- actuating
- lock
- theft bolt
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- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to an automatic lock. The automatic lock comprises an actuating plate, an inclined tongue, an anti-theft bolt, an abutting piece clamping bolt and a straight tongue. At ordinary times, the abutting piece clamping bolt on the anti-theft bolt supports the actuating plate, and if the anti-theft bolt is independently pushed at the moment, the abutting piece clamping bolt can not move due to the fact that the actuating plate abuts against the abutting piece clamping bolt. However, when the inclined tongue and the anti-theft bolt retract at the same time, the inclined tongue supports the actuating plate and pushes the actuating plate upwards, and then the abutting piece clamping bolt can move along with the anti-theft bolt and can not support the actuating plate for the moment. When the inclined tongue, the anti-theft bolt and the straight tongue correspond to a door frame and the inclined tongue and the anti-theft bolt are pushed into holes respectively, the actuating plate is pushed downwards at one moment due to the absence of the supporting of the inclined tongue and the abutting piece clamping bolt, and the straight tongue is directly pushed out into the door frame. In this way, the straight tongue can not be pushed out unless the inclined tongue and the anti-theft bolt reset, and then it can be guaranteed that the position of the straight tongue corresponds to that of a straight tongue hole of the door frame. Accordingly, locking is surely completed.
Description
Technical Field
The present invention relates to a lock set on a door, and more particularly, to an automatic lock which can be automatically locked when the door is closed and can ensure that a bolt is locked at a correct position.
Background
Referring to fig. 17 and 18, the prior art automatic lock includes a lock housing 210, a bolt 220, a latch 230, a straight bolt 240 and an actuating plate 250; the lock housing 210 is provided with a locking side plate 211; the anti-theft bolt 220, the oblique tongue 230 and the straight tongue 240 can protrude out of the locking side plate 211 of the lock shell 210, the anti-theft bolt 220 and the oblique tongue 230 are respectively pushed by the spring to protrude out of the locking side plate 211, and the straight tongue 240 is controlled by the actuating plate 250; the actuating plate 250 is vertically arranged in the lock shell 210, when the actuating plate 250 moves downwards to be positioned, the straight tongue 240 is enabled to protrude out of the locking side plate 211, and when the actuating plate 250 moves upwards to be positioned, the straight tongue 240 is enabled to retract into the locking side plate 211; the actuating plate 250 is pushed by the spring to move downwards, but the actuating plate 250 can be clamped at the inner end of the anti-theft bolt 220, when the anti-theft bolt 220 protrudes out of the locking side plate 211, the anti-theft bolt 220 is clamped with the actuating plate 250 to make the actuating plate 250 unable to move downwards, and when the anti-theft bolt 220 retracts into the locking side plate 211, the actuating plate 250 is separated from the anti-theft bolt 220 and pushed downwards to be positioned.
Therefore, when the door provided with the anti-theft bolt is used, after the door provided with the anti-theft bolt is opened, the anti-theft bolt 220 and the oblique tongue 230 protrude out of the locking side plate 211, the actuating plate 250 is positioned at the upper position and is clamped with the anti-theft bolt 220, and the straight tongue 240 is limited by the actuating plate 250 and is positioned in the locking side plate 211; when the door is closed, the anti-theft bolt 220 is pushed inward by the door frame to the locking side plate 211, and thus the actuating plate 250 is released, the actuating plate 250 moves downward and pushes the straight tongue 240 out of the locking side plate 211, and the straight tongue 240 can thus extend into the locking tongue hole of the receiving piece on the door frame, thereby achieving the purpose of automatic locking.
However, the prior art automatic lock has a disadvantage that when the door is closed, the anti-theft bolt 220 is only slightly pushed inward for a short distance, the actuating plate 250 is immediately separated from the anti-theft bolt 220 and rapidly moves downward to push out the straight tongue 240, but the position of the straight tongue 240 may not correspond to the door frame at all, so that the protruded straight tongue 240 may abut against the outer side of the door frame, and the door cannot be closed.
Disclosure of Invention
In view of the foregoing disadvantages and drawbacks of the prior art, it is an object of the present invention to provide an automatic lock that ensures that a straight tongue is extended only after the position of the straight tongue is aligned with a straight tongue hole of a receiving piece of a door frame.
In order to achieve the above object, the present invention provides an automatic lock, comprising:
a lock housing including an assembly plate and a lock side plate; the locking side plate is vertically connected to one transverse side edge of the assembling plate;
the actuating plate is arranged in the lock shell in a vertically movable manner, and an inclined tongue groove is concavely arranged on one transverse side edge of the actuating plate close to the locking side plate; the actuating plate is provided with an anti-theft bolt hole in a penetrating way; the anti-theft bolt hole is a long hole which extends up and down, and a downward pressing lug is protruded from one side edge of the anti-theft bolt hole close to the transverse direction of the locking side plate;
an elastic element of the actuating plate, which is disposed on the lock housing and can push the actuating plate downward;
the latch bolt can be transversely movably arranged in the lock shell, can protrude out of the locking side plate and can upwards abut against the latch bolt groove of the actuating plate;
the latch bolt elastic element is arranged on the lock shell and can push the latch bolt to the locking side plate;
the anti-theft bolt is arranged in the lock shell in a transversely movable manner and can protrude out of the locking side plate; the anti-theft bolt is provided with a propping part in a protruding way;
the anti-theft bolt elastic element is arranged on the lock shell and can push the anti-theft bolt to the locking side plate;
the abutting piece clamping bolt is transversely movably arranged on the anti-theft bolt, penetrates through the anti-theft bolt hole of the actuating plate and can be upwardly abutted against the pressing convex block of the anti-theft bolt hole; when the latch bolt is abutted against the latch bolt groove of the actuating plate, the downward pressing lug is upwards separated from the clamping bolt of the abutting piece;
the abutting piece clamping bolt elastic element abuts against the abutting piece clamping bolt and enables the abutting piece clamping bolt to abut against the abutting part of the anti-theft bolt;
the straight tongue can be transversely movably arranged in the lock shell and can protrude out of the locking side plate of the lock shell; the straight tongue is connected with the actuating plate and can be pushed by the actuating plate.
The invention has the advantages that at ordinary times, the butting piece clamping bolt on the anti-theft bolt butts against the downward pressing convex block of the actuating plate to ensure that the actuating plate can not move downwards, and at the moment, if the anti-theft bolt is pushed independently, the butting piece clamping bolt can also be propped downwards by the downward pressing convex block of the actuating plate to be incapable of moving, so that the butting piece clamping bolt can still continuously support the actuating plate, thereby avoiding the situation that the spring bolt can be ejected out to cause the spring bolt to be incapable of really entering the spring bolt hole on the receiving piece of the door frame when the door leaf is not completely closed due to the downward movement of the actuating plate caused by mistakenly touching the anti-theft bolt; however, when the inclined tongue and the anti-theft bolt retract simultaneously when the anti-theft bolt contacts the door frame, the inclined tongue abuts against the inclined tongue groove of the actuating plate to push the actuating plate upwards, so that the pressing lug can be separated upwards from the abutting part clamping bolt, the abutting part clamping bolt can move along with the anti-theft bolt and is not positioned below the pressing lug any more, and the abutting part clamping bolt loses the capability of supporting the actuating plate temporarily; when the door leaf is closed to a certain degree, and the inclined tongue, the anti-theft bolt and the straight tongue respectively correspond to the inclined tongue hole, the anti-theft bolt hole and the straight tongue hole of the door frame, the inclined tongue and the anti-theft bolt are respectively pushed into the inclined tongue hole and the anti-theft bolt hole, and at the moment that the inclined tongue is separated from the inclined tongue groove of the actuating plate, the clamping bolt of the abutting piece is not returned to the position below the downward pressing lug of the actuating plate, so that the actuating plate is not supported by the inclined tongue and the clamping bolt of the abutting piece and is pushed downwards, and the straight tongue is pushed out to the straight tongue hole of the door frame; the straight tongue is pushed out only when the inclined tongue and the anti-theft bolt are reset, and the position of the straight tongue is corresponding to the straight tongue hole of the door frame.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
fig. 1 is an exploded view of most of the components of the present invention.
Fig. 2 is a front schematic view of the present invention.
Fig. 3 is a perspective external view of the latch according to the present invention.
Fig. 4 is an exploded view of a portion of the components of the present invention at the latch tongue.
Fig. 5 is a perspective view of the anti-theft bolt of the present invention.
Fig. 6 is an exploded view of a portion of the components at the anti-theft bolt of the present invention.
Fig. 7 is a perspective view of the fastener of the present invention.
Fig. 8 is an exploded view of a portion of the components at the fixture of the present invention.
Fig. 9 is a front view of the present invention when pushing only the deadbolt.
FIG. 10 is a schematic front view of the present invention with the latch tongue pushed only.
Figure 11 is a front view of the present invention in contact with a doorframe.
Fig. 12 is a front view of the present invention locked to a door frame.
FIG. 13 is a front view of the present invention unlocked by a door handle.
Fig. 14 is a front view of the invention when unlocked by a key.
Fig. 15 is an enlarged front view schematically illustrating the automatic locking function of the present invention when not turned off.
Fig. 16 is an enlarged front view schematically illustrating the automatic locking function of the present invention when it is turned off.
FIG. 17 is a front schematic view of a prior art automatic lock.
Figure 18 is a front view of a prior art automatic lock locked to a doorframe.
Main element number description:
10 lock case 11 body
111 assembling plate 112 spacing column
113 abutting part 114 fixes the salient point
115 door handle 116 lock core
117 limiting hole 12 front cover
13 locking side plate 20 actuating plate
21 limiting hole and 22 inclined tongue groove
221 round corner 23 anti-theft bolt hole
231 pressing lug 24 straight tongue hole
25 lower press plate 30 oblique tongue
31 Flange actuator 311 disc
312 cylinder 40 anti-theft bolt
41 abutting part 42 cross-shaped end part
50 abutting piece clamping bolt 51 actuating part
52 sleeve portion of stopper portion 53
60 straight tongue 61 control part
62 fixed slot 70 fastener
71 fastener elastic element 72 fastener
80 door handle push plate 90 lock core
91 unlocking part 100 lock core push plate
101 first pushing part 102 second pushing part
103 third pushing part 110 acting plate elastic element
120 oblique tongue elastic element 130 anti-theft bolt elastic element
140 abutting piece latch elastic element 150 door handle elastic element
160 lock core elastic element 170 auxiliary plate
171 limiting hole 172 pressing part
173 avoiding groove 180 auxiliary plate elastic element
210 lock housing 211 locking side plate
220 anti-theft bolt 230 latch bolt
240 straight tongue 250 actuating plate
Detailed Description
The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.
Referring to fig. 1 and 2, the automatic lock of the present invention includes a lock housing 10, an actuating plate 20, an actuating plate elastic element 110, an auxiliary plate 170, an auxiliary plate elastic element 180, a latch 30, a latch elastic element 120, a deadbolt 40, a deadbolt elastic element 130, an abutting member latch 50, an abutting member latch elastic element 140, a straight tongue 60, a fixing member 70, a door handle push plate 80, a door handle elastic element 150, a lock core 90, a lock core push plate 100, and a lock core elastic element 160.
The lock housing 10 includes a main body 11, a front cover 12 and a locking side plate 13; the main body 11 has an inner space and a front opening, the bottom surface of the main body 11 is an assembly plate 111, the assembly plate 111 projects forward a limit post 112, an abutting portion 113 (as shown in fig. 6), a fixing bump 114 (as shown in fig. 8), a door handle portion 115 and a lock core portion 116; the abutting portion 113 includes two guide posts (as shown in fig. 6) spaced up and down; the front cover 12 covers the front opening of the body 11; the locking side plate 13 is arranged on one lateral side of the body 11 and is vertically connected with the assembling plate 111; a limiting hole 117 is formed through the front and the rear of the assembling plate 111, and the limiting hole 117 is a long hole extending in the transverse direction (as shown in fig. 6).
Referring to fig. 1 to 4, the actuating plate 20 is disposed in the body 11 of the lock housing 10 to be movable up and down, and a limiting hole 21, an anti-theft bolt hole 23 and a straight tongue hole 24 penetrate through the actuating plate 20; the limiting hole 21 is a long hole extending vertically and is sleeved on the limiting post 112 of the assembling plate 111, so as to ensure that the direction of the actuating plate 20 does not swing when moving up and down; the anti-theft bolt hole 23 is a long hole extending up and down and is positioned below the limit hole 21, a downward pressing lug 231 protrudes from one lateral side of the anti-theft bolt hole 23 close to the locking lateral plate 13, and the top side of the downward pressing lug 231 is a bevel edge; the straight tongue hole 24 is an inclined long hole and is inclined from top to bottom away from the locking side plate 13; a latch tongue groove 22 is concavely arranged on one transverse side edge of the actuating plate 20 close to the locking side plate 13, the latch tongue groove 22 is positioned between the limiting hole 21 and the anti-theft bolt hole 23, and a round guide angle 221 is arranged at the position, adjacent to the transverse side edge of the actuating plate 20, of an opening of the latch tongue groove 22; a lower pressing plate 25 is provided on the rear side of the actuating plate 20.
Referring to fig. 2 and 4, the elastic element 110 of the actuating plate is a torsion spring in the embodiment and is disposed on the assembling plate 111, and two ends of the elastic element 110 of the actuating plate respectively abut against the top wall surface of the body 11 and the lower pressing plate 25 of the actuating plate 20, so that the elastic element 110 of the actuating plate pushes the actuating plate 20 downward.
Referring to fig. 2 to 4, the auxiliary plate 170 is disposed in the body 11 of the lock housing 10 in a vertically movable manner, the auxiliary plate 170 is provided with a limiting hole 171 extending in front and at the back, the limiting hole 171 is a vertically extending long hole and is sleeved on the limiting post 112 of the assembling plate 111, so that the auxiliary plate 170 is ensured not to deflect in the vertical movement; a pressing portion 172 is protruded forward from the top side of the auxiliary plate 170, and the pressing portion 172 abuts downward against the operation plate 20, whereby the auxiliary plate 170 is supported from the operation plate 20, that is, if the operation plate 20 does not move downward, the auxiliary plate 170 cannot move downward; the auxiliary plate 170 has a clearance groove 173 on a lateral side thereof adjacent to the locking side plate 13.
The auxiliary plate elastic element 180 is a torsion spring in the embodiment and is disposed on the assembling plate 111, and two ends of the auxiliary plate elastic element 180 respectively abut against the top wall surface of the body 11 and the pressing portion 172 of the auxiliary plate 170, so that the auxiliary plate elastic element 180 pushes the assembling plate 111 downward.
Referring to fig. 1 to 4, the latch 30 is transversely movably disposed in the body 11 of the lock housing 10, a flange operating plate 31 is relatively rotatably disposed in front of an inner end of the latch 30, and the flange operating plate 31 includes a disc 311 and a cylinder 312 connected in a front-to-back manner; the latch tongue 30 can move transversely outwards to make the outer end of the latch tongue 30 protrude out of the locking side plate 13, and the latch tongue 30 can move transversely inwards to make the column 312 at the inner end of the latch tongue 30 prop up against the latch tongue groove 22 of the actuating plate 20; when the latch 30 moves laterally inward, the cylinder 312 of the latch 30 and the rounded corner 221 at the opening of the latch slot 22 abut against each other, and both the cylinder 312 and the rounded corner 221 help the cylinder 312 enter the latch slot 22 and push the movable plate 20 upward; further, the laterally inner end of the latch 30 abuts against the lateral side of the auxiliary plate 170 near the lock side plate 13 at the same time.
The latch elastic element 120 is a torsion spring in the embodiment, and is disposed on the assembling plate 111, and two ends of the latch elastic element 120 respectively abut against the top wall surface of the body 11 and the latch 30, so that the latch elastic element 120 pushes the latch 30 toward the locking side plate 13.
Referring to fig. 1, fig. 2, fig. 5 and fig. 6, the anti-theft bolt 40 is transversely movably disposed in the body 11 of the lock housing 10 and transversely penetrates between two guide posts of the abutting portion 113 of the assembling plate 111, and the anti-theft bolt 40 can transversely move outward to make the outer end of the anti-theft bolt 40 protrude out of the locking side plate 13; the transverse end of the anti-theft bolt 40 close to the locking side plate 13 is a cross-shaped end 42, and the hole on the locking side plate 13 for sleeving the anti-theft bolt 40 is also a cross-shaped hole with a corresponding shape (as shown in fig. 1), so that the anti-theft bolt 40 close to the transverse end of the locking side plate 13 can be relatively moved but can be non-rotatably embedded in the locking side plate 13; the movement of the anti-theft bolt 40 can be effectively limited from the two transverse ends by matching with the upper and lower double guide columns of the abutting part 113, so as to avoid the upward and downward deflection of the anti-theft bolt 40 during the movement; the outer wall surface of the anti-theft bolt 40 is formed with an abutting part 41 in a surrounding and protruding mode, and the abutting part 41 of the anti-theft bolt 40 is located between the locking side plate 13 and the abutting part 113 on the assembling plate 111.
The anti-theft bolt elastic element 130 is a compression spring in the embodiment and is sleeved outside the anti-theft bolt 40, and two ends of the anti-theft bolt elastic element 130 respectively abut against the abutting portion 113 of the lock housing 10 and the abutting portion 41 of the anti-theft bolt 40, so as to push the anti-theft bolt 40 toward the locking side plate 13.
The abutting member latch 50 is transversely movably sleeved on the anti-theft bolt 40, a sleeve portion 53 is circumferentially arranged on one transverse side edge of the abutting member latch 50 close to the locking side plate 13, and the sleeve portion 53 is sleeved on the anti-theft bolt 40, so that the stability of the abutting member latch 50 in moving on the anti-theft bolt 40 is improved, and the abutting member latch 50 is prevented from being inclined to cause poor operation and influence on the lock function; the abutting piece clamping bolt 50 is protruded forwards with an actuating part 51, the actuating part 51 is arranged in the anti-theft bolt hole 23 of the actuating plate 20 in a penetrating way and can abut against the downward pressing lug 231 of the anti-theft bolt hole 23 upwards, one lateral side of the actuating part 51 close to the locking lateral plate 13 is arc-shaped and is further semicircular, and one lateral side of the actuating part 51 far away from the locking lateral plate 13 is a vertical surface; the stop portion 52 protrudes backward from the stop member 50, and the stop portion 52 is a cylinder and is disposed through the laterally extending stop hole 117 of the assembling plate 111, so as to ensure that the stop member 50 does not deflect in the lateral direction when moving laterally.
The aforementioned abutting member latch elastic element 140 is a compression spring in the embodiment, and is sleeved outside the anti-theft bolt 40, two ends of the abutting member latch elastic element 140 respectively abut against the outer end of the anti-theft bolt 40 and the abutting member latch 50, and the abutting member latch 50 abuts against the abutting portion 41 of the anti-theft bolt 40.
Referring to fig. 1, 2, 7 and 8, the straight tongue 60 is transversely movably disposed in the body 11 of the lock housing 10, the straight tongue 60 can transversely move outward, so that the outer end of the straight tongue 60 protrudes out of the locking side plate 13, but the movement of the straight tongue 60 is limited by the operating plate 20; a control part 61 is protruded forwards from the inner end of the straight tongue 60, the control part 61 is arranged in the straight tongue hole 24 of the actuating plate 20 in a penetrating way, and the straight tongue 60 can be moved left and right by the up-and-down movement of the actuating plate 20 because the straight tongue hole 24 is a long oblique hole; the bottom side of the straight tongue 60 is recessed with a fixing groove 62 (shown in fig. 8).
The fixing member 70 is pivoted on the assembling plate 111, and the outer end of the fixing member 70 protrudes out of the locking side plate 13 and is used for moving the fixing member 70; the bottom side and the top side of the fixing member 70 can be abutted against the fixing salient points 114 on the assembling plate 111, and when the bottom side of the fixing member 70 is abutted against the fixing salient points 114, the inner end of the fixing member 70 is inserted into the fixing groove 62 of the straight tongue 60; the fixing member 70 is provided with a fixing member elastic element 71 and a connecting member 72 at the rear and front sides thereof, the fixing member elastic element 71 is a compression spring in the embodiment, and the two ends thereof respectively abut against the assembling plate 111 and the fixing member 70, so that the fixing member 70 abuts against the connecting member 72, and further the friction between the fixing member 70 and the connecting member 72 is increased, thereby preventing the fixing member 70 from being rotated by a slight external force.
Referring to fig. 1, 2, 5 and 6, the door handle pushing plate 80 is pivotally disposed on the assembling plate 111, and one end of the door handle pushing plate 80 in the transverse direction is located below the lower pressing plate 25 of the actuating plate 20 and can be abutted against the lower pressing plate 25; the handle push plate 80 is used to connect the handle of the door leaf.
The door handle elastic element 150 is a compression spring in this embodiment, and two ends of the compression spring respectively abut against the door handle portion 115 of the assembling plate 111 and the other end of the door handle push plate 80 in the transverse direction of the lower press plate 25, so that the door handle push plate 80 is far away from the lower press plate 25.
Referring to fig. 1 and 2, the lock core 90 is disposed on the assembly plate 111 and includes an unlocking portion 91 (shown in fig. 14); unlocking portion 91 is rotated when a key is inserted into lock cylinder 90.
The lock cylinder push plate 100 is pivoted on the assembly plate 111, and the lock cylinder push plate 100 protrudes backwards to form a first abutting portion 101, a second abutting portion 102 and a third abutting portion 103; the first abutting portion 101 and the third abutting portion 103 are respectively located at two sides of the lock cylinder push plate 100 close to and far away from the locking side plate 13; the first abutting part 101 is positioned below the actuating plate 20; the position of the second abutting portion 102 corresponds to the position of the unlocking portion 91 of the key cylinder 90.
The lock cylinder elastic element 160 is a torsion spring in this embodiment, and two ends of the torsion spring respectively abut against the lock cylinder portion 116 on the assembling plate 111 and the third abutting portion 103 of the lock cylinder push plate 100, so that the first abutting portion 101 of the lock cylinder push plate 100 is far away from the actuating plate 20.
Referring to fig. 2, when the door with the present invention is opened, the latch 30 and the anti-theft bolt 40 are pushed out of the locking side plate 13, the actuating plate 20 is located at a relatively upper position, and the pressing protrusion 231 of the anti-theft bolt hole 23 is pressed downward against the actuating portion 51 of the abutting member 50 of the anti-theft bolt 40, and thus cannot move downward.
Referring to fig. 9, when the anti-theft bolt 40 is pushed alone, the abutting member latch 50 cannot move along with the anti-theft bolt 40 due to the friction force generated by the pressing down of the actuating plate 20, and also presses the abutting member latch elastic member 140; since the abutting member latch 50 is still abutted against the depressing projection 231, the actuating plate 20 is supported not to move down.
Referring to fig. 10, if the latch 30 is pushed alone, the cylinder 312 at the inner end of the latch 30 abuts up against the latch groove 22 of the actuating plate 20, and thereby the actuating plate 20 is pushed up slightly, but the actuating plate 20 is still supported without moving down.
Referring to fig. 11, if the door is closed in a normal use state, the latch 30 and the anti-theft bolt 40 abut against the door frame and are pushed inwards together in the process of closing the door; initially, the abutting member latch 50 is still not moved due to being pressed down by the actuation plate 20, but when the latch 30 moves to push up the actuation plate 20, the pressing-down protrusion 231 is jointly released upward from the abutting member latch 50, and the abutting member latch 50 pressed down by less pressing-down protrusion 231 is immediately pushed out of the lower side of the pressing-down protrusion 231 by the abutting member latch elastic element 140; but the actuating plate 20 is still supported by the latch tongue 30; in addition, the inner end of the actuating plate 20 is inserted into the clearance groove 173 of the auxiliary plate 170.
Referring to fig. 12, when the door is closed completely and the latch tongue 30, the anti-theft bolt 40 and the straight tongue 60 correspond to the latch tongue hole, the anti-theft bolt hole and the straight tongue hole of the receiving piece of the door frame, the latch tongue 30 and the anti-theft bolt 40 are pushed into the latch tongue hole and the anti-theft bolt hole of the receiving piece by the latch tongue elastic element 120 and the anti-theft bolt elastic element 130, respectively; at the moment that the column 312 of the latch tongue 30 is separated from the latch tongue groove 22 of the actuating plate 20, the actuating portion 51 of the abutting piece latch 50 is not yet returned to the lower portion of the pressing-down protrusion 231 of the actuating plate 20, so that the actuating plate 20 is not supported by the latch tongue 30 and the abutting piece latch 50 and is rapidly pushed downward, and the straight tongue 60 is pushed out into the straight tongue hole of the receiving piece of the door frame through the inclined straight tongue hole 24.
It can be seen from the above that the straight tongue 60 is pushed out only when the oblique tongue 30 and the anti-theft bolt 40 correspond to the oblique tongue hole and the anti-theft bolt hole of the door frame, and at this time, the straight tongue 60 also corresponds to the straight tongue hole of the door frame, so that the straight tongue 60 can be pushed into the straight tongue hole of the door frame, and the purpose of locking can be achieved.
In addition, at the moment when the actuating plate 20 moves down, if the abutting member latch 50 has moved to be close to the lower side of the pressing projection 231, the pressing projection 231 will still follow the circular arc-shaped actuating portion 51 of the abutting member latch 50 to push the abutting member latch 50 away, thereby ensuring that the actuating plate 20 can move down smoothly at this time.
Furthermore, when the present invention is locked, the cylinder 312 of the latch 30 will be laterally abutted against the lateral side of the operation plate 20, and the inner end of the latch 30 is abutted against the lateral side of the auxiliary plate 170, so that the latch 30 is also fixed and cannot move.
After the invention is locked, the lock can be unlocked in two ways:
first, referring to fig. 13, the door handle inside the door is rotated, and the door handle rotates the door handle push plate 80, and the transverse end of the door handle push plate 80 pushes the lower pressing plate 25 of the actuating plate 20 upwards, so that the actuating plate 20 returns to the original position upwards; in the process that the actuating plate 20 moves upwards, the arc-shaped actuating part 51 of the abutting piece clamping bolt 50 is matched with the top side of the bevel edge of the downward pressing lug 231, so that the abutting piece clamping bolt 50 can move transversely to avoid the upward moving downward pressing lug 231, and finally the actuating part 51 returns to the position below the downward pressing lug 231 again; when the door handle is released, the handle push plate 80 is pushed back by the handle resilient member 150, and the actuator plate 20 is supported against the abutment latch 50.
Secondly, referring to fig. 14, after inserting a key into the lock cylinder 90 and then rotating the unlocking portion 91, the unlocking portion 91 pushes the second abutting portion 102 of the lock cylinder push plate 100 to make the lock cylinder push plate 100 follow the rotation, and finally the first abutting portion 101 of the lock cylinder push plate 100 abuts against the bottom side of the actuating plate 20 upwards and pushes the actuating plate 20 back to the original position upwards; the actions of the abutting member latch 50 and the pressing protrusion 231 are the same as the above, and therefore, the description thereof is not repeated; finally, the key and the unlocking portion 91 are rotated back to the original position, the lock cylinder push plate 100 is pushed back to the original position by the lock cylinder elastic element 160, and the actuating plate 20 is supported against the abutting member latch 50.
In this embodiment, only the inside of the door is provided with the door handle, and the outside of the door needs to be unlocked by using a key.
In addition, after the door leaf is slightly pushed after unlocking, the structure of the latch 30 will make the latch 30 gradually retract into the locking side plate 13, so that the door leaf can be smoothly pushed away.
Referring to fig. 15, in addition, the present invention can also close the automatic locking function through the fixing member 70; the top side of the original fixing member 70 abuts against the fixing salient point 114 on the assembling plate 111; referring to fig. 16, the outer end of the fixing member 70 is pushed down from the locking side plate 13, so that the fixing member 70 rotates and abuts against the fixing protrusions 114 at the bottom side, thereby fixing the angle of the fixing member 70, and the inner end of the fixing member 70 penetrates through the fixing groove 62 of the straight tongue 60, so that the straight tongue 60 cannot move towards the locking side plate 13, thereby closing the automatic locking function; in addition, the straight tongue 60 which cannot move can also pass through the inclined straight tongue hole 24 to make the actuating plate 20 not move downwards, but the movement of the inclined tongue 30 and the anti-theft bolt 40 is not affected; referring to fig. 15, when the automatic locking function is not activated, the outer end of the fixing member 70 protrudes out of the locking side plate 13, but the fixing member 70 does not interfere with the door frame because the fixing member 70 slightly protrudes with respect to the latch 30, the anti-theft bolt 40 and the straight tongue 60.
In other embodiments, the fixing elements may have other configurations, for example, the angle of the fixing elements may be fixed without protruding points, or the fixing elements may not protrude from the locking side plate but protrude from the door leaf for operation.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (16)
1. An automatic lock, characterized in that it comprises:
a lock housing including an assembly plate and a lock side plate; the locking side plate is vertically connected to one transverse side edge of the assembling plate;
the actuating plate is arranged in the lock shell in a vertically movable manner, and an inclined tongue groove is concavely arranged on one transverse side edge of the actuating plate close to the locking side plate; the actuating plate is provided with an anti-theft bolt hole in a penetrating way; the anti-theft bolt hole is a long hole which extends up and down, and a pressing convex block is protruded from one side edge of the anti-theft bolt hole, which is close to the transverse direction of the locking side plate;
the elastic element of the actuating plate is arranged on the lock shell and can push the actuating plate downwards;
the latch bolt is arranged in the lock shell in a transversely movable manner, can protrude out of the locking side plate and can upwards abut against the latch bolt groove of the actuating plate;
the latch bolt elastic element is arranged on the lock shell and can push the latch bolt to the locking side plate;
the anti-theft bolt is arranged in the lock shell in a transversely movable manner and can protrude out of the locking side plate; the anti-theft bolt is provided with a propping part in a protruding way;
the anti-theft bolt elastic element is arranged on the lock shell and can push the anti-theft bolt to the locking side plate;
the abutting piece clamping bolt is transversely movably arranged on the anti-theft bolt, penetrates through the anti-theft bolt hole of the actuating plate and can be upwardly abutted against the pressing-down convex block of the anti-theft bolt hole; when the latch bolt abuts against the latch bolt groove of the actuating plate, the downward pressing lug is upwards separated from the abutting piece clamping bolt;
the abutting piece clamping bolt elastic element abuts against the abutting piece clamping bolt and enables the abutting piece clamping bolt to abut against the abutting part of the anti-theft bolt;
the straight tongue can be transversely movably arranged in the lock shell and can protrude out of the locking side plate of the lock shell; the straight tongue is connected with the actuating plate and can be pushed by the actuating plate.
2. The automatic lock of claim 1, wherein:
a fixing groove is concavely arranged on the bottom side of the straight tongue;
the automatic lock further comprises a fixing piece which is pivoted on the assembling plate of the lock shell and can penetrate through the fixing groove of the straight tongue.
3. The automatic lock of claim 2, wherein:
a fixing salient point protrudes from the assembling plate of the lock shell;
the bottom side and the top side of the fixing piece can be abutted against the fixed salient points respectively, and when the bottom side of the fixing piece is abutted against the fixed salient points, the fixing piece penetrates through the fixed groove of the straight tongue.
4. The automatic lock of claim 2, wherein: the fixing piece protrudes out of the locking side plate.
5. The automatic lock according to any one of claims 1 to 4, characterized in that:
the opening of the oblique tongue groove of the actuating plate is provided with a fillet guide at the position adjacent to the transverse side edge of the actuating plate;
the inner end of the latch bolt is provided with a cylinder which can upwards abut against the latch bolt groove of the actuating plate and can abut against the round angle of the actuating plate.
6. The automatic lock of claim 5, wherein: the inner end of the latch bolt is provided with a flange actuating disc which comprises a disc and a cylinder which are connected with each other in a relatively rotating way.
7. The automatic lock according to any one of claims 1 to 4, characterized in that: the anti-theft bolt elastic element, the abutting piece clamping bolt and the abutting piece clamping bolt elastic element are all sleeved outside the anti-theft bolt; the abutting part of the anti-theft bolt is formed on the outer wall surface of the anti-theft bolt in a surrounding and protruding mode.
8. The automatic lock according to any one of claims 1 to 4, characterized in that: the anti-theft bolt is embedded with the locking side plate in a manner that the anti-theft bolt is close to the transverse end of the locking side plate and can move relatively but cannot rotate relatively.
9. The automatic lock according to any one of claims 1 to 4, characterized in that: the assembling plate of the lock shell is provided with a propping part in a protruding way, and the propping part of the assembling plate comprises two guide posts which are arranged at intervals up and down; the anti-theft bolt is arranged between the two guide posts in a penetrating way; two ends of the anti-theft bolt elastic element are respectively abutted against the abutting part of the lock shell and the abutting part of the anti-theft bolt.
10. The automatic lock according to any one of claims 1 to 4, characterized in that: the top side of the downward pressing lug of the actuating plate is a bevel edge.
11. The automatic lock according to any one of claims 1 to 4, characterized in that: the abutting piece clamping bolt is provided with an actuating part in a protruding mode, the actuating part penetrates through the anti-theft bolt hole of the actuating plate and can abut against the pressing-down protruding block of the anti-theft bolt hole upwards, and one lateral side edge, close to the locking side plate, of the actuating part is arc-shaped.
12. The automatic lock according to any one of claims 1 to 4, characterized in that:
a limiting hole penetrates through the assembling plate, and the limiting hole of the assembling plate is a long hole extending transversely;
the abutting piece clamping bolt is protruded with a limiting part, and the limiting part of the abutting piece clamping bolt penetrates through the limiting hole of the assembling plate.
13. The automatic lock according to any one of claims 1 to 4, characterized in that:
the assembling plate is provided with a limiting column in a protruding way;
the actuating plate is provided with a limiting hole in a penetrating manner, the limiting hole of the actuating plate is a long hole extending up and down, and the limiting hole is sleeved on the limiting column of the assembling plate.
14. The automatic lock according to any one of claims 1 to 4, characterized in that:
the automatic lock further comprises a door handle push plate, the door handle push plate is pivoted on the assembling plate, and one transverse end of the door handle push plate can be upwards abutted against the actuating plate;
the automatic lock further comprises a door handle elastic element, wherein the door handle elastic element abuts against the door handle push plate and enables the door handle push plate to be far away from the actuating plate.
15. The automatic lock according to any one of claims 1 to 4, characterized in that:
the automatic lock further comprises a lock cylinder, wherein the lock cylinder is arranged on the assembling plate and comprises an unlocking part;
the automatic lock further comprises a lock core push plate, the lock core push plate is pivoted on the assembling plate, and a first abutting part, a second abutting part and a third abutting part protrude from the lock core push plate; the first pushing-against part and the third pushing-against part are respectively positioned at two sides of the lock cylinder push plate close to and far away from the locking side plate; the first pushing and abutting part can be abutted against the actuating plate upwards; the second pushing and abutting part can abut against the unlocking part of the lock cylinder;
the automatic lock further comprises a lock cylinder elastic element, and the lock cylinder elastic element abuts against the third abutting part of the lock cylinder push plate and enables the first abutting part of the lock cylinder push plate to be far away from the actuating plate.
16. The automatic lock according to any one of claims 1 to 4, characterized in that:
the actuating plate is provided with a straight tongue hole in a penetrating way, the straight tongue hole is an oblique long hole and inclines away from the locking side plate from top to bottom;
the straight tongue is provided with a control part in a protruding mode, and the control part penetrates through a straight tongue hole of the actuating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143376.8A CN104975757B (en) | 2014-04-10 | 2014-04-10 | Automatic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143376.8A CN104975757B (en) | 2014-04-10 | 2014-04-10 | Automatic lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104975757A CN104975757A (en) | 2015-10-14 |
| CN104975757B true CN104975757B (en) | 2017-04-12 |
Family
ID=54272682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143376.8A Expired - Fee Related CN104975757B (en) | 2014-04-10 | 2014-04-10 | Automatic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104975757B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201707144D0 (en) * | 2017-05-04 | 2017-06-21 | Era Home Security Ltd | Locking assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0521262A1 (en) * | 1991-06-22 | 1993-01-07 | Gretsch-Unitas GmbH Baubeschläge | Lock |
| CN1087698A (en) * | 1992-08-17 | 1994-06-08 | 泷源制造株式会社 | Door grip assembly |
| CN201714199U (en) * | 2010-02-04 | 2011-01-19 | 希美克(广州)实业有限公司 | Flatly open type single-tongue door/window lock |
| JP5329214B2 (en) * | 2008-12-26 | 2013-10-30 | 富士通フロンテック株式会社 | Lock mechanism and storage device |
| CN203531527U (en) * | 2013-11-11 | 2014-04-09 | 吴荣钰 | Automatic lock having escape function |
-
2014
- 2014-04-10 CN CN201410143376.8A patent/CN104975757B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0521262A1 (en) * | 1991-06-22 | 1993-01-07 | Gretsch-Unitas GmbH Baubeschläge | Lock |
| CN1087698A (en) * | 1992-08-17 | 1994-06-08 | 泷源制造株式会社 | Door grip assembly |
| JP5329214B2 (en) * | 2008-12-26 | 2013-10-30 | 富士通フロンテック株式会社 | Lock mechanism and storage device |
| CN201714199U (en) * | 2010-02-04 | 2011-01-19 | 希美克(广州)实业有限公司 | Flatly open type single-tongue door/window lock |
| CN203531527U (en) * | 2013-11-11 | 2014-04-09 | 吴荣钰 | Automatic lock having escape function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104975757A (en) | 2015-10-14 |
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