CN209670495U - Mechanical self-latching type handle-door lock structure - Google Patents

Abstract

The utility model relates to door lock fields, disclose a kind of mechanical self-latching type handle-door lock structure, including lock housing, lock housing includes jam plate and substrate, the promotion piece that substrate is equipped with lock tongue and is connected with lock tongue, and the stretching jam plate induction locking bolt parallel with lock tongue is slidably connected on substrate, incuding locking bolt includes bolt head and bolt tail, bolt head stretches out jam plate, and bolt tail is slidably connected on substrate, and induction spring is connected between bolt head and bolt tail；It is rotatably connected to self-locking connecting rod in substrate, self-locking connecting rod includes bar one and bar two, and the junction of bar one and bar two is fixed with the rotation axis connecting with substrate rotating, and bar one is connected with bolt tail, and on piece is pushed to offer promotion slot, and the end of bar two, which is slidably connected to, to push in slot.By incuding the setting of locking bolt, bar one and bar two, when people close door, door locking is not needed people and swing handle or is locked on the door by key again by lock tongue auto-extending jam plate, easy to use.

Description

Mechanical self-latching type handle-door lock structure

Technical field

The utility model relates to door lock field, in particular to a kind of mechanical self-latching type handle-door lock structure.

Background technique

Handle-door lock locking device, all include frame substrate, latch bolt, latch bolt plectrum, polygonal square bar sleeve, square tongue, push piece, Tapered end and tapered end pusher dog, latch bolt and latch bolt plectrum interlock, the special-shaped polygonal square bar sleeve of through-hole inner sleeve in latch bolt plectrum, square tongue with push away Movable plate Joint pushes on piece to be equipped with sliding slot and is slidably matched with the cunning cylindroid that base is pulled is fixed on, the tapered end pusher dog on tapered end It is matched with the inner concave wall of piece side is pushed.

Notification number is that the Chinese patent of CN1274791A discloses a kind of handle-door lock locking device, the master with special-shaped through-hole Dynamic half gear dislocation is layered on latch bolt plectrum, and is tensed by reset spring, special-shaped through-hole while the polygonal square bar sleeve of inner sleeve, actively Half gear is mutually engaged with passive half gear, and the hinged pusher dog in one end of passive half gear, pusher dog is positioned by torsional spring, pushes the another of piece Side is equipped with moving tooth, and moving tooth is matched with pusher dog.Above-mentioned technology, which overcomes common handle-door lock locking device, must pass through key Spoon carries out locking operation, and the relatively complicated defect of process can directly be locked by handle outdoors, and there is structure simply to close Reason, advantage easy to operate.

Above structure when in use, after shutdown, locked outdoors for rotation by handle.People when in use, after shutdown Also need to carry out again a step rotation outdoors handle the step of lock a door, operate it is relatively complicated, when people go out, be easy forget, Lead to a closing loosely.

Utility model content

The purpose of the utility model is to provide a kind of mechanical self-latching type handle-door lock structures, have easy to operate, user Just the advantages of.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of mechanical self-latching type door latch structure, including lock housing, the lock housing include jam plate and substrate, and the substrate is equipped with Lock tongue and the promotion piece being connected with lock tongue slidably connect on the substrate and stretch out the jam plate induction lock parallel with lock tongue Bolt, the induction locking bolt include bolt head and bolt tail, and the bolt head stretches out jam plate, and the bolt tail is slidably connected on substrate, described Induction spring is connected between bolt head and bolt tail；

It is rotatably connected to self-locking connecting rod in the substrate, the self-locking connecting rod includes bar one and bar two, the bar one and bar Two junction is fixed with the rotation axis connecting with substrate rotating, and the bar one is connected with bolt tail, and the promotion on piece offers Slot is pushed, the end of the bar two, which is slidably connected to, to push in slot.

By using above-mentioned technical proposal, using this door latch structure, when door is normally-open, lock tongue is shunk in substrate, is not stretched Jam plate out, induction locking bolt stretch out jam plate under the action of incuding spring.At closing time, extruding of the bolt head by doorframe, bolt head pass through Incuding spring pushes bolt tail, bolt tail catch bar one, bar one and bar two to rotate around rotation axis, and bar two, which drives, pushes piece to jam plate direction Movement, so that lock tongue stretches out jam plate, by door locking.By incuding the setting of locking bolt, bar one and bar two, when people close door When closing, door locking is not needed people and swing handle or is locked on the door by key again, made by lock tongue auto-extending jam plate With conveniently.

Further, the control flume of strip is offered on the bar one, the end of the bolt tail, which is fixed with, to be slidably connected to Control-rod in control flume.

By using above-mentioned technical proposal, when bolt tail catch bar one rotates, control-rod slides in control flume, control-rod pair The side wall of control flume applies thrust, so that bar one rotates.Structure is simple, easy to use.Control flume limits the movement of bolt tail Position and guiding prevent bolt tail and bar one to be detached from, influence self-locking.

Further, the control wheel being slidably connected in control flume is rotatably connected on the control-rod.

By using above-mentioned technical proposal, when control-rod slides in control flume, control wheel rolls in control flume.Control Wheel reduces the frictional force between control-rod and control flume, facilitates transmission.

Further, the guide groove of arc is offered on the substrate, the lower surface of the bar one, which is fixed with, to be slidably connected In the guide rod in guide groove.

By using above-mentioned technical proposal, bolt tail catch bar one, bar one is rotated around rotation axis, and guide rod is sliding in guide groove Dynamic, guide groove and guide rod mutual cooperation are defined and are oriented to the motion path of bar one, prevent the motion path of bar one from sending out Raw deviation is stuck.

Further, the guide groove is fixed with the magnetic adsorption plate for adsorbing guide rod far from the side of jam plate.

By using above-mentioned technical proposal, at closing time, bolt tail catch bar one, guide rod slides in guide groove, guide rod When moving to the bottom of guide groove, guide rod is mutually adsorbed with magnetic adsorption plate, and guide rod is fixed, at this point, lock tongue, which is in, stretches out lock Tight state.Magnetic adsorption plate applies suction to bar two, increases the coupling mechanism force of lock tongue, prevents lock tongue from voluntarily retracting.

Further, it is rotatably connected to unlocking axis on the substrate, is fixed on the unlocking axis and stretches out unlocking axis side wall Unlocking protrusion, be fixed with pitman shaft on the substrate, unlocking connecting rod, the unlocking connecting rod be rotatably connected on the pitman shaft One end and unlocking axis side wall contradict, and the end of the self-locking connecting rod is fixed with the unlocking pin perpendicular with self-locking connecting rod, described to open Lock connecting rod keeps away from one end of lock shaft and pin of unlocking contradicts.

By using above-mentioned technical proposal, unlocking axis is rotated, unlocking axis drives raised rotation of unlocking, protrusion of unlocking and unlocking The end of connecting rod contradicts and pushes unlocking connecting rod, and unlocking connecting rod is rotated around pitman shaft, the unlocking connecting rod other end push unlock pin from And self-locking link rotatable is driven, self-locking connecting rod is rotated in slot pushing and is contradicted with groove sidewall is pushed, and self-locking connecting rod passes through promotion Slot is to pushing piece to apply thrust, so that lock tongue is shunk in substrate, so that door be opened.Unlocking axis can be connected with handle can also be used for Key is plugged, is unlocked convenient for people.

Further, the side of the unlocking connecting rod towards pin of unlocking offers arc groove.

By using above-mentioned technical proposal, when unlocking connecting rod drives self-locking link rotatable, pin of unlocking slides in arc groove, The motion path of the split lock pin of arc groove is oriented to, and prevents from stuck not unlocking.

Further, the unlocking groove of annular is offered on the outer wall of the unlocking axis, the unlocking connecting rod is towards unlocking axis End be set as drops, the end of the unlocking connecting rod is in unlocking groove.

By using above-mentioned technical proposal, in unlocking groove, unlocking groove dual lock connecting rod is carried out for the end of unlocking connecting rod Limit prevents unlocking connecting rod and unlocking axis to be detached from, influences unlocking effect.The end of unlocking axis is set as drops, unlocking axis with open The contact area of locked groove is smaller, and friction is small, convenient for the rotation of unlocking axis.

Further, slidably connect latch bolt on the substrate, described latch bolt one end stretch out the jam plate other end and substrate it Between be equipped with latch bolt spring.

By using above-mentioned technical proposal, latch bolt stretches out jam plate under the action of latch bolt spring always, to prevent door certainly Row is closed.

Further, unlocking column is fixed on the unlocking axis, the latch bolt is connected with latch bolt push jack, opens up on latch bolt push jack There is linked slot, the end of the unlocking column is put in linked slot.

By using above-mentioned technical proposal, the rotation of unlocking axis drives the rotation of unlocking column after door is closed, and unlocking column is in linked slot Interior movement, unlocking column drive latch bolt push jack to move by linked slot, to latch bolt is retracted in substrate, with the unlatching of side door.People The movement of lock tongue and latch bolt is controlled simultaneously by unlocking axis, it is easy to use.

In conclusion the utility model has the following beneficial effects:

1., when people close door, lock tongue auto-extending jam plate is by door by the setting of induction locking bolt, bar one and bar two Locking does not need people and swing handle or is locked on the door by key again, easy to use；

2. passing through the setting of unlocking axis, people control the movement of lock tongue by unlocking axis, and it is convenient to open the door.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the connection schematic diagram of bolt tail and bar one in embodiment.

In figure, 1, lock housing；11, jam plate；12, substrate；121, limited post；13, guide groove；131, magnetic adsorption plate；2, lock tongue； 21, piece is pushed；211, limiting slot；22, slot is pushed；3, incude locking bolt；31, bolt head；32, incude spring；33, bolt tail；331, it controls Bar processed；332, control wheel；41, rotation axis；43, self-locking connecting rod；431, bar one；4311, control flume；4312, guide rod；432, bar Two；45, it unlocks and sells；5, guide plate；51, sliding groove；52, gib block；61, unlocking axis；611, unlocking groove；62, it unlocks raised； 63, pitman shaft；64, unlocking connecting rod；641, arc groove；65, unlocking column；7, latch bolt；71, latch bolt spring；72, linked slot；73, tiltedly Tongue push jack；74, limit stop post.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment:

A kind of self-locking door lock, such as Fig. 1, including lock housing 1, lock housing 1 include jam plate 11 and substrate 12, and jam plate 11 is fixed on base The side of plate 12 is simultaneously perpendicular with substrate 12.Substrate 12 successively slidably connects latch bolt 7, lock tongue 2 and induction locking bolt from top to bottom 3.Latch bolt 7, lock tongue 2 and the induction extended jam plate 11 of locking bolt 3, are locked on the door.

Such as Fig. 1, latch bolt 7 is connected with latch bolt push jack 73, and latch bolt push jack 73 controls the movement of latch bolt 7.Latch bolt push jack 73 Latch bolt spring 71 is connected between substrate 12.Latch bolt spring 71 in the raw when, latch bolt 7 stretch out jam plate 11, prevent a mistake It closes.

Such as Fig. 1, substrate 12 is connected with unlocking axis 61 in the rotated down of latch bolt 7, and unlocking axis 61 can be with handle or key phase Even, unlocking axis 61 is used to open door lock.

Such as Fig. 1, it is fixed with the unlocking column 65 towards latch bolt push jack 73 on unlocking axis 61, offers opening on latch bolt push jack 73 Towards the linked slot 72 of unlocking column 65, linked slot 72 is in " Qian " font.The end of unlocking column 65 is put in linked slot 72.Latch bolt Spring 71 in the raw when, the side wall of unlocking column 65 and linked slot 72 contradicts.When unlocking, unlocking axis 61, unlocking axis are rotated 61 drive unlocking column 65 to rotate, and unlocking column 65 pushes linked slot 72 to drive latch bolt push jack 73 and latch bolt 7 to slide, and latch bolt 7 contracts Into on substrate 12, with the opening of side door.

Such as Fig. 1, it is fixed with limit stop post 74 on substrate 12, limit stop post 74 is arranged in linked slot 72.Limit stop post 74 The motion path of latch bolt push jack 73 is defined.7 hyperkinesia of latch bolt is prevented, the use of door lock is influenced.

Such as Fig. 1, lock tongue 2 is by pushing piece 21 to be slidably connected on substrate 12.It pushes and offers limiting slot 211 on piece 21, The limited post 121 pierced into limiting slot 211 is fixed on substrate 12.When piece 21 being pushed to slide, limited post 121 is in limiting slot 211 Interior sliding, limiting slot 211 and limited post 121, which cooperate, to be oriented to and is limited to the motion path for pushing piece 21.

Such as Fig. 1, the side that promotion piece 21 keeps away from lock shaft 61, which offers, pushes slot 22, on substrate 12 in the case where pushing piece 21 Side is rotatably connected to self-locking connecting rod 43.Self-locking connecting rod 43 includes bar 1 and bar 2 432, the connection of bar 1 and bar 2 432 Place is fixed with rotation axis 41, and rotation axis 41 and substrate 12 are rotatablely connected.The end of bar 2 432, which is slidably connected to, to push in slot 22. The rotation of bar 2 432 is by pushing piece 21 to move the extruding control for pushing slot 22, to control the flexible of lock tongue 2.

Such as Fig. 1, unlocking connecting rod 64 is equipped between unlocking axis 61 and self-locking connecting rod 43.It is fixedly connected with to be located on substrate 12 and open Pitman shaft 63 between lock shaft 61 and promotion piece 21, unlocking connecting rod 64 are rotationally connected on pitman shaft 63.64 one end of unlocking connecting rod It is contradicted with unlocking axis 61, the other end and bar 2 432 contradict.The rotation of unlocking axis 61 drives unlocking connecting rod 64 to rotate, unlocking connecting rod 64 Poke rod 2 432, bar 2 432 push piece 21 that lock tongue 2 is driven to retract, and realize and open the door.

Such as Fig. 1, the unlocking groove 611 of annular is offered on 61 outer wall of unlocking axis, unlocking connecting rod 64 is towards the end of unlocking axis 61 Portion is set as drops in unlocking groove 611, and 61 outer wall of unlocking axis is fixed with outwardly directed unlocking protrusion in unlocking groove 611 62, protrusion 62 of unlocking is contradicted with unlocking connecting rod 64.Unlocking axis 61 rotates, and protrusion 62 of unlocking squeezes unlocking connecting rod 64, pushes and unlocks Connecting rod 64 rotates.611 dual lock connecting rod 64 of unlocking groove is limited, and 64 sideslip of unlocking connecting rod is prevented.

As the end of Fig. 1, bar 2 432 are equipped with the unlocking pin 45 perpendicular with self-locking connecting rod 43, the end of unlocking connecting rod 64 It is contradicted with unlocking pin 45.Unlocking connecting rod 64 offers arc groove 641, unlocking pin 45 and arc groove close to the end of unlocking pin 45 641 contradict.Unlocking connecting rod 64 rotates, and arc groove 641 and unlocking pin 45 contradict, and arc groove 641 pushes unlocking pin 45, unlocking pin 45 Driven rod 2 432 rotates, and unlocking pin 45 is slided along arc groove 641.

Such as Fig. 1, incudes locking bolt 3 and controlled by one 431 pairs of bars 2 432 of bar.It is fixed with guide plate 5 on substrate 12, leads Sliding groove 51 is offered on plate 5, induction locking bolt 3 is slidably connected on guide plate 5, and induction locking bolt 3, which is fixed with, to be slidably connected to Gib block 52 in sliding groove 51.The movement of gib block 52 and 51 pairs of sliding groove induction locking bolts 3 is limited and is oriented to.

Such as Fig. 1, incuding locking bolt 3 includes bolt head 31, induction spring 32 and bolt tail 33.Induction spring 32 is connected to 31 He of bolt head Between bolt tail 33, gib block 52 is fixedly connected with bolt head 31.Bolt tail 33 is connected with bar 1.

Such as Fig. 1, at closing time, bolt head 31 is squeezed, and bolt head 31 applies pressure, bolt tail to bolt tail 33 by induction spring 32 The rotation of 33 catch bars 1,41 driven rod 2 432 of rotation axis rotation, so that lock tongue 2 is released jam plate 11.

Such as Fig. 1, when enabling, the rotation of unlocking axis 61 drives unlocking connecting rod 64 to rotate, 2 432 turns of 64 driven rod of unlocking connecting rod Dynamic, bar 2 432 is rotated by 41 driven rod 1 of rotation axis, and bar 1 pushes bolt tail 33 to move.Since bolt head 31 is by doorframe Limitation, can not stretch out, and 33 pairs of induction springs 32 of bolt tail squeeze, and the induction contraction of spring 32 vacates sky to the movement of bolt tail 33 Between, it prevents from interfering.

Such as Fig. 2, the control flume 4311 for coupling bar tail 33 is offered on bar 1, the end of bolt tail 33 is fixed with cunning The control-rod 331 being connected in control flume 4311 is moved, is rotatably connected to control wheel 332 on control-rod 331.33 catch bar one of bolt tail When 431 movement, control wheel 332 is slided in control flume 4311, and control flume 4311 and control-rod 331 are by bolt tail 33 and bar 1 It is flexibly connected, bolt tail 33 and control-rod 331 is prevented to be detached from.

Such as Fig. 1 and Fig. 2, the guide groove 13 of arc is offered on substrate 12, guide groove 13 is fixed far from the side of jam plate 11 There is magnetic adsorption plate 131.The lower surface of bar 1 is fixed with the guide rod 4312 being slidably connected in guide groove 13, guide rod 4312 It can be adsorbed by magnetic adsorption plate 131 for magnetic metal.At closing time, 33 catch bar 1 of bolt tail, guide rod 4312 are sliding in guide groove 13 Dynamic, when guide rod 4312 moves to the bottom of guide groove 13, guide rod 4312 and magnetic adsorption plate 131 are mutually adsorbed, guide rod 4312 It is fixed, at this point, lock tongue 2, which is in, stretches out locking state.Magnetic adsorption plate 131 applies suction to bar 2 432, increases the locking of lock tongue 2 Power prevents lock tongue 2 from voluntarily retracting.

Specific implementation process: using this door lock, and at closing time, induction locking bolt 3 is shunk in substrate 12, and induction locking bolt 3 passes through bar The rotation of one 431 driven rods 2 432, bar 2 432, which is stirred, pushes piece 21, pushes piece 21 that lock tongue 2 is released jam plate 11, by door locking. When enabling, unlocking axis 61 is rotated, and unlocking axis 61 drives latch bolt 7 to retract by unlocking column 65,2 432 turns of 64 driven rod of unlocking connecting rod Dynamic, bar 2 432, which drives, pushes piece 21 to shrink, and lock tongue 2 shrinks on substrate 12, opens the door.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of mechanical self-latching type handle-door lock structure, including lock housing (1), the lock housing (1) includes jam plate (11) and substrate (12), the promotion piece (21) that the substrate (12) is equipped with lock tongue (2) and is connected with lock tongue (2), it is characterised in that: the substrate (12) it is slidably connected on and stretches out jam plate (11) induction locking bolt (3) parallel with lock tongue (2), the induction locking bolt (3) includes Bolt head (31) and bolt tail (33), the bolt head (31) stretch out jam plate (11), and the bolt tail (33) is slidably connected on substrate (12), Induction spring (32) is connected between the bolt head (31) and bolt tail (33)；

It is rotatably connected to self-locking connecting rod (43) in the substrate (12), the self-locking connecting rod (43) includes bar one (431) and bar two (432), the junction of the bar one (431) and bar two (432) is fixed with the rotation axis (47) with substrate (12) rotation connection, institute It states bar one (431) to be connected with bolt tail (33), is offered on the promotion piece (21) and push slot (22), the end of the bar two (432) Portion, which is slidably connected to, to push in slot (22).

2. mechanical self-latching type handle-door lock structure according to claim 1, it is characterised in that: opened on the bar one (431) The end of control flume (4311) equipped with strip, the bolt tail (33) is fixed with the control being slidably connected in control flume (4311) Bar (331).

3. mechanical self-latching type handle-door lock structure according to claim 2, it is characterised in that: on the control-rod (331) It is rotatably connected to the control wheel (332) being slidably connected in control flume (4311).

4. mechanical self-latching type handle-door lock structure according to claim 1, it is characterised in that: opened up on the substrate (12) There is the guide groove (13) of arc, the lower surface of the bar one (431) is fixed with the guide rod being slidably connected in guide groove (13) (4312).

5. mechanical self-latching type handle-door lock structure according to claim 4, it is characterised in that: the guide groove (13) is separate The side of jam plate (11) is fixed with the magnetic adsorption plate (131) for adsorbing guide rod.

6. mechanical self-latching type handle-door lock structure according to claim 1, it is characterised in that: rotated on the substrate (12) It is connected with unlocking axis (61), the unlocking protrusion (62) for stretching out unlocking axis (61) side wall is fixed on the unlocking axis (61), it is described It is fixed on substrate (12) pitman shaft (63), is rotatably connected to unlocking connecting rod (64) on the pitman shaft (63), the unlocking connects Bar (64) one end and unlocking axis (61) side wall contradict, and the end of the self-locking connecting rod (43) is fixed with mutually hangs down with self-locking connecting rod (43) Straight unlocking pin (45), the unlocking connecting rod (64) keeps away from one end of lock shaft (61) and pin (45) of unlocking contradicts.

7. mechanical self-latching type handle-door lock structure according to claim 6, it is characterised in that: unlocking connecting rod (64) court Arc groove (641) are offered to the side for pin (45) of unlocking.

8. mechanical self-latching type handle-door lock structure according to claim 6, it is characterised in that: outside the unlocking axis (61) The unlocking groove (611) of annular is offered on wall, the end of unlocking connecting rod (64) towards the unlocking axis (61) is set as drops, institute The end of unlocking connecting rod (64) is stated in unlocking groove (611).

9. mechanical self-latching type handle-door lock structure according to claim 6, it is characterised in that: slided on the substrate (12) It is connected with latch bolt (7), described latch bolt (7) one end, which is stretched out, is equipped with latch bolt spring between jam plate (11) other end and substrate (12) (71).

10. mechanical self-latching type handle-door lock structure according to claim 9, it is characterised in that: on the unlocking axis (61) It being fixed with unlocking column (65), the latch bolt (7) is connected with latch bolt push jack (73), linked slot (72) are offered on latch bolt push jack (73), The end of the unlocking column (65) is put in linked slot (72).