CN110644852B

CN110644852B - Impact-resistant lockset and switching method

Info

Publication number: CN110644852B
Application number: CN201910944383.0A
Authority: CN
Inventors: 杨磊; 徐军
Original assignee: Shanghai Junzheng Network Technology Co Ltd
Current assignee: Shanghai Junzheng Network Technology Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2023-12-12
Anticipated expiration: 2039-09-30
Also published as: CN110644852A

Abstract

The invention relates to an impact-resistant lockset and a switching method, comprising the following steps: a lock base; the lock tongue part is rotatably arranged on the lock bottom plate and is provided with a clamping groove; the locking part is rotatably arranged on the lock bottom plate, and is provided with a clamping hook and a limiting body, and the clamping hook can be clamped into the clamping groove so as to enable the lock tongue part and the locking part to be matched and kept at a locking position; the cam mechanism comprises a cam and a pushing part which are coaxially arranged on the lock bottom plate, and the edge of the cam contacts and props against the limiting body to limit the movement of the clamping hook in a direction away from the clamping groove; the cam mechanism can rotate to enable the edge of the cam to leave the limiting body, and meanwhile the pushing part drives the locking part to rotate so that the clamping hook moves away from the clamping groove to be separated from the clamping groove. The invention can avoid the side impact or the malicious people to toggle and open the lockset in the locking state, has the functions of preventing impact and theft, and effectively improves the protective capability of the lockset.

Description

Impact-resistant lockset and switching method

Technical Field

The invention relates to the field of lockset design, in particular to an impact-resistant lockset and a switching method.

Background

Electric vehicles and bicycles become a common carrier in the current society, particularly, with the development of internet technology, sharing bicycles, sharing mopeds and the like which are raised in the whole country are almost seen everywhere, and compared with public bicycles with piles, the piling-free sharing bicycle which is taken and stopped at any time brings great convenience to users.

In order to prevent theft of components contained in the vehicle, it is necessary to install a lock on components contained in the vehicle, such as a seat, a power supply protection cover. Most of these locks do not have a safety device, and when the locks are accidentally subjected to lateral force, the unlocking plate is easily unlocked, so that the locking plate is unlocked; even the long and thin hard object is used to pass through the gap between the vehicle cushion and the vehicle frame, the unlocking plate can be easily poked, and the article protected by the unlocking plate is stolen after the locking plate is opened. In order to solve the problem, a protecting device can be additionally arranged on the lock, however, most of the protecting devices adopted at present are complex in structure and poor in protecting stability, and meanwhile, the manufacturing cost of the whole vehicle is increased.

Disclosure of Invention

Based on the above, it is necessary to provide an anti-impact lock and a switching method for solving the problems that the traditional lock plate is easy to be impacted by external force, the locking is invalid and the protection stability is poor.

An impact resistant lock, comprising:

a lock base;

the lock comprises a lock tongue part, a lock base and a lock cover, wherein the lock tongue part is rotatably arranged on the lock base, and a clamping groove is formed in the lock tongue part;

the locking component is rotatably arranged on the lock bottom plate, and is provided with a clamping hook and a limiting body, and the clamping hook can be clamped into the clamping groove so as to enable the lock tongue component and the locking component to be matched and kept in a locking state;

the cam mechanism comprises a cam and a pushing part which are coaxially arranged on the lock bottom plate, and the edge of the cam contacts and props against the limiting body to limit the movement of the clamping hook in a direction away from the clamping groove; the cam mechanism can rotate to enable the edge of the cam to leave the limiting body, and meanwhile the pushing part drives the locking part to rotate so that the clamping hook moves away from the clamping groove to be separated from the clamping groove.

The anti-impact lockset has at least the following beneficial technical effects:

the lock is opened and closed by the cam mechanism, the locking part is provided with the limiting body which can be matched with the cam, when the lock tongue part is matched with the locking part to be kept in a locking state, the limiting body limits the freedom degree of the locking part through being matched with the cam, so that the clamping hook is limited to move in a direction away from the clamping groove, the clamping hook and the clamping groove are ensured to be firmly matched in the locking state, the limiting of the cam mechanism to the locking part can not be relieved even if the locking part is impacted by the side face or is stirred by a slender hard object, the lock can be prevented from being opened due to the side face impact or the stirring of malicious things by a person in a locking state, the lock has the functions of preventing impact and theft, and the protection capability of the lock is effectively improved. When unlocking is needed, the cam mechanism can be driven to enable the edge of the cam to leave the limiting body, meanwhile, the cam mechanism enables the pushing part to drive the locking part to rotate so that the clamping hooks are separated from the clamping grooves to unlock, and when the locking is finished, the cam mechanism is driven continuously in the same direction so that the edge of the cam contacts with the limiting body to limit the clamping hooks to move in the direction away from the clamping grooves, so that the clamping hooks and the clamping grooves are guaranteed to be firmly matched in a locking state, and the functions of opening and closing the lock are realized by means of simple arrangement and unidirectional rotation of the cam mechanism.

The invention has the advantages of uncomplicated integral structure, simple operation and good protection stability, and does not increase the manufacturing cost of the whole vehicle.

In one embodiment, the locking member includes a locking plate rotatably disposed on the surface of the lock base and a first return body connecting the locking plate to the lock base to provide a return force for moving the hook in a direction approaching the catch.

In one embodiment, the first resilient body includes a first torsion spring, the first torsion spring and the locking plate are disposed on a first installation shaft on the surface of the lock base together, and one end of the first torsion spring is fixed on the lock base, and the other end of the first torsion spring abuts against the locking plate.

In one embodiment, the latch bolt assembly includes a latch bolt plate rotatably disposed on the latch base surface and a second return body connecting the latch bolt plate to the latch base to provide a driving force for moving the catch in a direction away from the catch.

In one embodiment, the second rebound body comprises a second torsion spring, the second torsion spring and the bolt plate are arranged on a second installation shaft on the surface of the lock bottom plate together, one end of the second torsion spring is fixed on the lock bottom plate, and the other end of the second torsion spring is abutted against the bolt plate.

In one embodiment, the edge of the cam comprises a large-wheelbase edge and a small-wheelbase edge, the pushing part comprises a push rod, the large-wheelbase edge is contacted with the limiting body to limit the movement of the clamping hook in a direction away from the clamping groove, the cam mechanism can rotate to enable the large-wheelbase edge to leave the limiting body, and meanwhile the push rod is enabled to push the locking part to rotate so that the clamping hook moves in a direction away from the clamping groove to be separated from the clamping groove.

In one embodiment, the device further comprises a driving part, a first travel switch and a second travel switch, wherein the driving part is used for driving the cam mechanism to rotate, the second travel switch is used for detecting the locking state of the spring bolt part through contacting with the spring bolt part, the first travel switch is used for detecting the travel state of the cam mechanism through contacting with the large-wheelbase edge of the cam, and the first travel switch and the second travel switch are electrically connected with the driving part.

In one embodiment, the drive member is a stepper motor.

In one embodiment, the lock further comprises a lock pressing plate, the lock pressing plate covers the lock bottom plate, the lock tongue component and the lock component are arranged between the lock pressing plate and the lock bottom plate, and the lock pressing plate is connected with the lock bottom plate through a fixing piece.

In one embodiment, the fixing member includes two fixing screws, the locking part is mounted on a first mounting shaft on the surface of the lock base, the bolt part is mounted on a second mounting shaft on the surface of the lock base, and the two fixing screws pass through connecting holes on the lock base and are screwed into the first mounting shaft and the second mounting shaft respectively so as to connect the lock base with the lock base.

In one embodiment, the locking device further comprises a first limiting part and/or a second limiting part arranged on the lock bottom plate, wherein the first limiting part is used for limiting the clamping hook to excessively move towards the direction approaching the clamping groove, and the second limiting part is used for limiting the clamping groove to excessively move towards the direction far away from the clamping hook.

A method of opening and closing an impact resistant lock, comprising:

the cam mechanism is rotated, so that the edge of the cam leaves the limit body of the locking part, the pushing part drives the locking part to rotate at the same time, so that the clamping hook moves to be separated from the clamping groove in the direction away from the clamping groove, the locking tongue part is rotated, the clamping groove is away from the clamping hook, and the unlocking action is completed;

rotating the lock tongue part to enable the clamping groove to be close to the clamping hook;

when the clamping groove rotates to be contacted with the clamping hook and clamped by the clamping hook, the lock tongue part and the locking part are matched and kept in a locking state;

and rotating the cam mechanism to ensure that the edge of the cam contacts with the limiting body to limit the clamping hook to move in the direction away from the clamping groove, so that the locking action is completed.

According to the method, when the lock tongue part and the locking part are matched and kept in the locking state, the limiting body is matched with the cam to limit the freedom degree of the locking part, so that the movement of the clamping hook in the direction away from the clamping groove is limited, the clamping hook and the clamping groove are guaranteed to be firmly matched in the locking state, the limitation of the cam mechanism on the locking part cannot be relieved even if the locking part is impacted by the side face or is stirred by a slender hard object, the lock can be prevented from being opened by side impact or being stirred by malicious things in the locking state, the anti-impact and anti-theft functions are achieved, and the protection capability of the lock is effectively improved. When unlocking is needed, the cam mechanism can be driven to enable the edge of the cam to leave the limiting body, and meanwhile, the cam mechanism enables the pushing part to drive the locking part to rotate so as to enable the clamping hook to be separated from the clamping groove to realize unlocking; when the lock is closed, the cam mechanism is driven continuously in the same direction, so that the edge of the cam is contacted with the limiting body, the movement of the clamping hook in the direction away from the clamping groove is limited, the clamping hook and the clamping groove are guaranteed to be firmly matched in a locking state, and the function of opening and closing the lock is realized by integrally utilizing the unidirectional rotation of the cam mechanism.

In one embodiment, the device further comprises a driving part, a first travel switch and a second travel switch, wherein the driving part is used for driving the cam mechanism to rotate, the second travel switch is used for detecting the locking state of the dead bolt part through contacting with the dead bolt part, the first travel switch is used for detecting the travel state of the cam mechanism through contacting with the large-wheelbase edge of the cam, and the first travel switch and the second travel switch are electrically connected with the driving part; in the locking state, the first travel switch is in a conducting state in contact with the large-wheelbase edge of the cam, and the second travel switch is in a conducting state in contact with the bolt part;

the driving part drives the cam mechanism to rotate, so that the large-wheelbase edge of the cam is separated from the limiting body, and the pushing part drives the locking part to rotate, so that the clamping hook moves to be separated from the clamping groove in a direction away from the clamping groove;

rotating the latch bolt assembly away from the second travel switch to turn off the second travel switch, the second travel switch sending an unlock signal to the drive assembly;

the driving part drives the cam mechanism to continue rotating until the large-wheelbase edge of the cam leaves the first travel switch so as to disconnect the first travel switch, the first travel switch sends a signal to the driving part, and the driving part judges that the unlocking action is completed and stops driving the cam mechanism;

rotating the lock tongue part to enable the clamping groove to be close to the clamping hook and clamped by the clamping hook, enabling the second travel switch to be conducted by enabling the lock tongue part to contact the second travel switch, and enabling the second travel switch to send a locking signal to the driving part;

the driving part drives the cam mechanism to rotate until the large-wheelbase edge of the cam contacts the first travel switch to enable the first travel switch to be conducted, at the moment, the large-wheelbase edge of the cam contacts and props against the limiting body to limit the clamping hook to move in the direction away from the clamping groove, the driving part sends a signal to the driving part after the first travel switch is conducted, the driving part judges that the locking action is completed, and the driving of the cam mechanism is stopped.

Drawings

FIG. 1 is a schematic view of an anti-impact lock according to an embodiment of the present invention in a closed state;

FIG. 2 is an unlocked state diagram of the anti-impact lock of FIG. 1;

FIG. 3 is an exploded view of the anti-impact lock of FIG. 1;

fig. 4 is an a-direction view of the cam mechanism in the anti-impact lock of fig. 3.

In the figure: 100. the locking base, 110, the opening,

200. the bolt component 210, the bolt plate 220, the second rebound body 221, the second torsion spring 230, the second mounting shaft 240, the second limit part 201, the clamping groove,

300. the locking part, 310, the locking plate, 320, the first rebound body, 321, the first torsion spring, 330, the first mounting shaft, 340, the first limit part, 301, the clamping hook, 302, the limit body,

400. cam mechanism, 410, pushing part, 411, clearance space, 412, reinforcing rib, 420, cam, 421, large wheelbase edge, 422, small wheelbase edge, 430, fixed shaft,

500. a locking plate, 510, a connecting hole,

600. the first one of the travel switches is provided with a first one of the travel switches,

700. and a second travel switch.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Those of ordinary skill in the art will recognize that variations and modifications can be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, in one embodiment of the present invention, an impact resistant lock is provided that includes a lock base 100, a deadbolt assembly 200, a locking assembly 300, and a cam mechanism 400. Wherein, the bolt part 200 is rotatably arranged on the lock bottom plate 100, and the bolt part 200 is provided with a clamping groove 201; the locking part 300 is rotatably arranged on the lock bottom plate 100, and a clamping hook 301 and a limiting body 302 are arranged on the locking part 300, and the clamping hook 301 can be clamped into the clamping groove 201 so as to enable the lock tongue part 200 and the locking part 300 to be matched and kept in a locking state; the cam mechanism 400 comprises a cam 420 and a pushing part 410 which are coaxially arranged on the lock base 100, wherein the edge of the cam 420 contacts with the limiting body 302 and props against the limiting body 302 to limit the movement of the clamping hook 301 in a direction away from the clamping groove 201; the cam mechanism 400 can rotate to enable the edge of the cam 420 to leave the limiting body 302, and simultaneously enable the pushing part 410 to drive the locking component 300 to rotate so as to enable the clamping hook 301 to move away from the clamping groove 201 to be separated from the clamping groove 201.

The specific operation description is as follows: referring to fig. 1, the lock is locked in a normal state, when the lock is unlocked, the cam mechanism 400 rotates in a counterclockwise direction, the cam mechanism 400 rotates to enable the edge of the cam 420 to leave the limiting body 302 of the locking component 300, and meanwhile, the pushing part 410 drives the locking component 300 to rotate so as to enable the clamping hook 301 to move away from the clamping groove 201 to be separated from the clamping groove 201, and the cam mechanism 400 stops rotating; after the clamping groove 201 is released, the lock tongue component 200 rotates to enable the clamping groove 201 to be far away from the clamping hook 301, the unlocking action is completed, and the lock is in a completely opened state as shown in fig. 2;

when the lock is closed, referring to fig. 2, the latch bolt part 200 rotates to enable the clamping groove 201 to be close to the clamping hook 301 and clamped by the clamping hook 301, and the latch bolt part 200 is matched with the locking part 300 to be kept in a locking state; the cam mechanism 400 rotates in a direction consistent with the unlocking process, so that the edge of the cam 420 contacts with the limiting body 302 to limit the movement of the clamping hook 301 in a direction away from the clamping groove 201, the locking action is completed, the cam mechanism 400 stops rotating, and the lockset is in the locking state in fig. 1.

In this embodiment, the cam mechanism 400 is used to realize the opening and closing of the lock, the lock part 300 is provided with the limit body 302 that can be matched with the cam 420, when the lock tongue part 200 and the lock part 300 are matched and kept in the locking state, the limit body 302 limits the degree of freedom of the lock part 300 by being matched with the cam 420, thereby limiting the movement of the hook 301 in the direction away from the clamping groove 201, ensuring that the hook 301 and the clamping groove 201 can be firmly matched in the locking state, and even if the lock part 300 is impacted by the side surface or is stirred by a slender hard object, the limit of the cam mechanism 400 to the lock part 300 can not be released, thereby avoiding the lock from being opened by the side surface impact or the malicious object of a person in the locking state, having the functions of preventing the impact and the theft, and effectively improving the protection capability of the lock. When unlocking is needed, the cam mechanism 400 can be driven to enable the edge of the cam 420 to leave the limit body 302, meanwhile, the cam mechanism 400 enables the pushing part 410 to drive the locking part 300 to rotate so that the clamping hook 301 and the clamping groove 201 are separated to unlock, and when the locking is finished, the cam mechanism 400 is continuously driven in the same direction so that the edge of the cam 420 contacts with the limit body 302 to limit the clamping hook 301 to move in the direction away from the clamping groove 201, so that the clamping hook 301 and the clamping groove 201 can be firmly matched in a locking state, and the locking and unlocking functions are realized by means of simple arrangement and unidirectional rotation of the cam mechanism 400.

When unlocking, the rotary toggle mechanism is required to drive the locking part 300 to rotate so as to enable the clamping hook 301 to move in a direction away from the clamping groove 201 until the clamping hook 301 is separated from the clamping groove 201, and when the locking is subsequently closed, the locking part 300 is required to be rotated so as to enable the clamping hook 301 to clamp the clamping groove 201, so that the lock tongue part 200 and the locking part 300 are matched and kept in a locking state. To this end, referring to fig. 1, in some embodiments, the locking member 300 includes a locking plate 310 and a first elastic body 320, the locking plate 310 is rotatably provided on the surface of the lock base 100, the hook 301 is provided on the locking plate 310, and the first elastic body 320 connects the locking plate 310 with the lock base 100 to provide elastic force for moving the hook 301 in a direction approaching the card slot 201. Through adopting this setting, the gyration toggle mechanism drives the locking plate 310 rotation in order to make pothook 301 and draw-in groove 201 separation when unblanking, the pothook 301 is kick-backed to the direction that is close to draw-in groove 201 under the effect of first bullet body 320 after unblanking, directly drive spring bolt part 200 makes the draw-in groove 201 card of spring bolt part 200 go into in pothook 301 when needs lock, can realize locking, do not need manual or alone operation locking plate 310 to make pothook 301 to be close to the direction of draw-in groove 201 and remove and block and fix draw-in groove 201, the operation is more convenient, specifically, when manual lock, can press or promote spring bolt part 200 to be moved towards the direction that is close to locking plate 310 until draw-in groove 201 card is gone into in the pothook 301.

Preferably, the first elastic body 320 includes a first torsion spring 321, the first torsion spring 321 and the locking plate 310 are disposed on a first mounting shaft 330 on the surface of the lock base 100 together, and one end of the first torsion spring 321 is fixed to the lock base 100, and the other end abuts against the locking plate 310. When the locking plate 310 is driven to rotate to separate the clamping hook 301 from the clamping groove 201, the first torsion spring 321 coaxially arranged with the locking plate 310 deforms to store energy, and when the rotary toggle mechanism no longer drives the locking plate 310, the energy in the first torsion spring 321 is released and the clamping hook 301 is enabled to rebound in a direction approaching to the clamping groove 201. In other embodiments, the first elastic body 320 may be a spring, where the spring directly connects the locking plate 310 with the lock base 100, and the spring deforms and stores energy when the locking plate 310 rotates, and directly drives the hook 301 to rebound in a direction approaching the slot 201 after unlocking.

It will be appreciated that in other embodiments, the locking member 300 may comprise only the locking plate 310 without having a rebound function that does not affect the proper functioning of the basic function of the present invention.

When the locking member 300 is rotated to separate the hook 301 from the slot 201 during unlocking, the latch member 200 is also required to be rotated to move the slot 201 away from the hook 301, thereby completely unlocking the lock. To this end, referring to fig. 1, in some embodiments, the latch bolt assembly 200 includes a latch plate 210 and a second return body 220, the latch plate 210 being pivotally mounted to the surface of the latch base 100, a catch 201 being mounted to the latch plate 210, the second return body 220 connecting the latch plate 210 to the latch base 100 to provide a driving force to move the catch 201 away from the catch 301. In the unlocking state, when the locking plate 310 rotates to separate the hook 301 from the catch 201, the catch 201 is released, and the second elastic body 220 can provide a driving force to move the catch 201 away from the hook 301, so that manual operation or separate driving of the tongue plate 210 is not required to move the catch 201 away from the hook 301.

Preferably, the second elastic body 220 includes a second torsion spring 221, the second torsion spring 221 and the latch plate 210 are disposed on a second mounting shaft 230 on the surface of the latch base 100 together, one end of the second torsion spring 221 is fixed on the latch base 100, and the other end abuts against the latch plate 210. When the clamping groove 201 is locked with the clamping hook 301, the second torsion spring 221 coaxially arranged with the lock tongue plate 210 deforms to store energy, and after the clamping groove 201 is released, the energy in the second torsion spring 221 releases and drives the lock tongue plate 210 to rotate, so that the clamping groove 201 moves in a direction away from the clamping hook 301. In other embodiments, the second elastomer 220 may be a spring that directly connects the strike plate 210 to the strike plate 100, the spring being deformed to store energy to provide a driving force to move the catch 201 away from the catch 301 when the strike plate 210 is rotated, and the spring directly driving the strike plate 210 to move the catch 201 away from the catch 301 when the lock is unlocked.

It will be appreciated that in other embodiments, the tongue component 200 may include only the tongue plate 210 without having a rebound function that does not affect the proper functioning of the basic function of the present invention.

Referring to fig. 1 and 2, in some embodiments, cam mechanism 400 may rotate about a fixed axis 430 perpendicular to lock base 100. The edge of the cam 420 includes a large-wheelbase edge 421 and a small-wheelbase edge 422, the pushing portion 410 includes a push rod, the large-wheelbase edge 421 restricts the movement of the hook 301 away from the card slot 201 by contacting with the stopper 302, the cam mechanism 400 can rotate to enable the large-wheelbase edge 421 to leave the stopper 302, and simultaneously enable the push rod to push the locking member 300 to rotate to enable the hook 301 to move away from the card slot 201. The large-wheelbase edge 421 and the small-wheelbase edge 422 are clear in boundary, so that the lockset can be switched between the locking state and the unlocking state quickly, and the problem that the opening and closing are not smooth due to the unclear boundary is solved.

In the locked state, if the distance between the push rod and the locking component 300 is too small, the locking component 300 is easily accidentally touched to unlock the lock. Preferably, referring to fig. 4, a clearance space 411 is formed on the push rod, so as to increase the distance between the push rod and the locking member 300 in the locked state, and prevent the push rod from being accidentally opened by contacting the locking member 300 even if vibration occurs, thereby enhancing the anti-impact function and having better protection stability.

Preferably, the pushing portion 410 is provided with a reinforcing rib 412 as shown in fig. 4, which is used to improve the structural strength of the pushing portion 410, so as to avoid deformation caused by excessive contact force with the locking member 300 during unlocking.

Further, the cam mechanism 400 is driven to rotate by the driving part, the first travel switch 600 and the second travel switch 700 are further included, the second travel switch 700 is contacted with the latch bolt part 200 to detect the locking state of the latch bolt part 200, the first travel switch 600 is contacted with the large-wheelbase edge 421 of the cam 420 to detect the travel state of the cam mechanism 400, and the first travel switch 600 and the second travel switch 700 are electrically connected with the driving part.

Specifically, the lock is locked in a normal state, when the driving component receives an unlocking signal (code scanning or other input signals) from the outside, the driving component drives the cam mechanism 400 to rotate, so that the large-wheelbase edge 421 of the cam 420 leaves the limit body 302 of the locking component 300, and simultaneously the pushing component 410 drives the locking component 300 to rotate, so that the clamping hook 301 moves away from the clamping groove 201 to be separated from the clamping groove 201; after the clamping groove 201 is released, the lock tongue part 200 rotates and leaves the second travel switch 700 to enable the second travel switch 700 to be disconnected, and the second travel switch 700 sends an unlocking signal to the driving part; the driving means drives the cam mechanism 400 to continue to rotate until the large wheelbase edge 421 of the cam 420 leaves the first travel switch 600 to turn off the first travel switch 600, the first travel switch 600 sends a signal to the driving means, the driving means determines that the unlocking operation is completed, and the driving of the cam mechanism 400 is stopped.

In the locking process, the lock tongue part 200 is pressed or pushed to enable the clamping groove 201 to be close to the clamping hook 301 and clamped by the clamping hook 301, the second travel switch 700 is pressed by the lock tongue part 200 in the pressing process, the second travel switch 700 is switched on, and the driving part receives a locking signal; the driving part drives the cam mechanism 400 to rotate until the large-wheelbase edge 421 of the cam 420 contacts the first travel switch 600 to conduct the first travel switch 600, at this time, the large-wheelbase edge 421 of the cam 420 simultaneously contacts and abuts against the limiting body 302 to limit the movement of the clamping hook 301 in the direction away from the clamping groove 201, after the first travel switch 600 is conducted, a signal is sent to the driving part, the driving part determines that the locking action is completed, and the driving of the cam mechanism 400 is stopped.

Since the rotation of a driving member such as a motor is easily affected by a voltage, if a time interval is used to control the stop rotation time of the cam mechanism 400, there may be a certain error. Therefore, the driving component of the embodiment judges the locking state of the bolt component 200 and the travel state of the cam mechanism 400 by receiving the detection signals of the first travel switch 600 and the second travel switch 700, and then accurately adjusts the position state of the cam mechanism 400, thereby realizing automatic control of the switching and locking process, and ensuring that the control process is accurate and reliable; the rotation stop time of the cam mechanism 400 is determined by the contact and separation of the large wheelbase edge 421 of the cam 420 with the first travel switch 600, and the rotation of the cam mechanism 400 can be controlled more precisely.

Preferably, the driving means is a stepping motor. The stepping motor can accurately control the rotation stroke of the rotary toggle mechanism, and unlocking and locking are guaranteed to be in place. Of course, in other embodiments, a non-stepper motor or other rotary drive may be used, without limitation.

Referring to fig. 3, in some embodiments, a lock platen 500 is further included to cover the lock base 100, and the latch bolt assembly 200, the lock member 300 are interposed between the lock platen 500 and the lock base 100, and the lock platen 500 is connected to the lock base 100 by a fixing member. The lock plate 500 may be engaged with the lock base 100 to surround the latch bolt part 200 and the lock part 300 from both sides, thereby effectively protecting the latch bolt part 200 and the lock part 300 from external force to damage the internal structure of the lock. Preferably, the fixing member includes two fixing screws which pass through the coupling holes 510 of the lock pressing plate 500 and are screwed into the first mounting shaft 330 and the second mounting shaft 230, respectively, to couple the lock pressing plate 500 with the lock pressing plate 100, and the locking part 300 is mounted on the first mounting shaft 330 of the surface of the lock pressing plate 100 and the locking part 200 is mounted on the second mounting shaft 230 of the surface of the lock pressing plate 100. The fixing screw is convenient to detach, and the lockset can be quickly installed and detached according to the requirement.

Referring to fig. 1, in some embodiments, the lock base 100 further includes a first limiting portion 340 and a second limiting portion 240, where the first limiting portion 340 is used to limit the excessive movement of the hook 301 in a direction approaching the hook 201, and the second limiting portion 240 is used to limit the excessive movement of the hook 201 in a direction away from the hook 301. Specifically, the first limiting portion 340 may be a limiting shaft disposed on the lock base 100, and the second limiting portion 240 may be a stop block disposed on the lock base 100.

Referring to fig. 3, in some embodiments, the lock base 100 is provided with an opening 110, the opening 110 is adjacent to the latch bolt assembly 200, and a driving device is arranged to drive the latch bolt assembly 200 to rotate when the lock is closed, so that the clamping groove 201 is adjacent to the clamping hook 301. With this arrangement, the lock is conveniently closed without extending into the lock to rotate the bolt assembly 200.

In another embodiment of the present invention, a method for opening and closing an impact resistant lock is provided, including an unlocking process and a locking process, wherein:

referring to fig. 1, when unlocking, the cam mechanism 400 is rotated such that the edge of the cam 420 is separated from the stopper 302 of the locking member 300, and the pushing part 410 drives the locking member 300 to rotate so that the hook 301 moves away from the card slot 201 to be separated from the card slot 201, and the cam mechanism 400 stops rotating;

after the clamping groove 201 is released, the lock tongue component 200 is rotated to enable the clamping groove 201 to be far away from the clamping hook 301, the unlocking action is completed, and the lockset is in the state shown in fig. 2;

when the lock is closed, the lock tongue component 200 is rotated to enable the clamping groove 201 to be close to the clamping hook 301;

when the clamping groove 201 rotates to be contacted with the clamping hook 301 and clamped by the clamping hook 301, the lock tongue part 200 and the locking part 300 are matched and kept in a locking state;

the cam mechanism 400 rotates in a direction consistent with the unlocking process, so that the edge of the cam 420 contacts with the limiting body 302 to limit the movement of the clamping hook 301 in a direction away from the clamping groove 201, the locking action is completed, the rotation of the cam mechanism 400 is stopped, and the lockset is in the state shown in fig. 1.

In some embodiments, the device further comprises a driving component, a first travel switch 600 and a second travel switch 700, wherein the driving component is used for driving the cam mechanism 400 to rotate, the second travel switch 700 is contacted with the latch bolt component 200 to detect the locking state of the latch bolt component 200, the first travel switch 600 is contacted with the large-wheelbase edge 421 of the cam 420 to detect the travel state of the cam mechanism 400, and the first travel switch 600 and the second travel switch 700 are electrically connected with the driving component; in the off-lock state, the first travel switch 600 is in contact with the large wheelbase edge 421 of the cam 420 in an on-state, and the second travel switch 700 is in contact with the deadbolt assembly 200 in an on-state;

when unlocking, the driving part drives the cam mechanism 400 to rotate, so that the large-wheelbase edge 421 of the cam 420 is separated from the limiting body 302 of the locking part 300, and the pushing part 410 drives the locking part 300 to rotate, thereby the clamping hook 301 moves away from the clamping groove 201 to be separated from the clamping groove 201,

after the clamping groove 201 is released, the bolt component 200 is rotated to leave the second travel switch 700, so that the second travel switch 700 is disconnected, and the second travel switch 700 sends an unlocking signal to the driving component;

the driving part drives the cam mechanism 400 to continue to rotate until the large-wheelbase edge 421 of the cam 420 leaves the first travel switch 600 so as to disconnect the first travel switch 600, the first travel switch 600 sends a signal to the driving part, and the driving part judges that the unlocking action is completed and stops driving the cam mechanism 400;

when the lock is closed, the lock tongue part 200 is pressed or pushed, the clamping groove 201 is close to the clamping hook 301 and is clamped by the clamping hook 301, the second travel switch 700 is pressed by the lock tongue part 200 in the pressing process, the second travel switch 700 is connected, and the driving part receives a lock closing signal;

the driving part drives the cam mechanism 400 to rotate until the large-wheelbase edge 421 of the cam 420 contacts the first travel switch 600 to conduct the first travel switch 600, at this time, the large-wheelbase edge 421 of the cam 420 contacts and abuts against the limiting body 302 to limit the movement of the clamping hook 301 in the direction away from the clamping groove 201, after the first travel switch 600 is conducted, a signal is sent to the driving part, the driving part determines that the locking action is completed, the driving part stops driving the cam mechanism 400, and the lockset is in the state shown in fig. 1.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. An impact resistant lock, comprising:

the lock comprises a lock bottom plate and a first limit part and/or a second limit part which are arranged on the lock bottom plate;

the cam mechanism comprises a cam and a pushing part which are coaxially arranged on the lock bottom plate, and the edge of the cam contacts and props against the limiting body to limit the movement of the clamping hook in a direction away from the clamping groove; the cam mechanism can rotate to enable the edge of the cam to leave the limiting body, and meanwhile the pushing part drives the locking part to rotate so as to enable the clamping hook to move away from the clamping groove to be separated from the clamping groove; the pushing part comprises a push rod.

2. The impact resistant latch of claim 1 wherein said locking member includes a locking plate pivotally mounted to said latch base surface and a first return spring connecting said locking plate to said latch base to provide a return force for moving said catch in a direction toward said catch.

3. The impact resistant lock of claim 2, wherein the first resilient body comprises a first torsion spring, the first torsion spring and the locking plate are arranged on a first mounting shaft on the surface of the lock base together, one end of the first torsion spring is fixed on the lock base, and the other end of the first torsion spring abuts against the locking plate.

4. The impact resistant latch of claim 1 wherein said latch member includes a latch plate pivotally disposed on said latch plate surface and a second return body connecting said latch plate to provide a driving force for moving said catch in a direction away from said catch.

5. The impact resistant latch of claim 4 wherein said second resilient body includes a second torsion spring, said second torsion spring and said latch plate being co-located with a second mounting shaft on the surface of said latch plate, one end of said second torsion spring being secured to said latch plate and the other end abutting said latch plate.

6. The impact lock of claim 1, wherein the edge of the cam comprises a large wheelbase edge and a small wheelbase edge, the large wheelbase edge limiting movement of the hook away from the slot by contact with the stop, the cam mechanism being rotatable such that the large wheelbase edge is clear of the stop, and such that the push rod pushes the locking member to rotate to move the hook away from the slot to disengage from the slot.

7. The impact resistant latch of claim 6 further comprising a drive member for driving the cam mechanism in rotation, a first travel switch and a second travel switch, the second travel switch detecting the latched state of the latch member by contact with the latch member, the first travel switch detecting the travel state of the cam mechanism by contact with the large wheelbase edge of the cam, the first travel switch and the second travel switch both electrically connected to the drive member.

8. The impact resistant latch of claim 7 wherein said drive member is a stepper motor.

9. The impact resistant latch of claim 1 further comprising a latch plate overlying said latch plate, and wherein said latch bolt assembly, said latch member are disposed between said latch plate and said latch plate, said latch plate being connected to said latch plate by a fastener.

10. The impact resistant lock of claim 9, wherein said securing member comprises two set screws, said locking member being mounted on a first mounting shaft on a surface of said lock base, said strike member being mounted on a second mounting shaft on a surface of said lock base, said set screws passing through attachment holes in said lock base and being threaded into said first mounting shaft and said second mounting shaft, respectively, to connect said lock base to said lock base.

11. The impact resistant latch of claim 1 wherein the first stop is configured to limit excessive movement of the catch in a direction toward the catch and the second stop is configured to limit excessive movement of the catch in a direction away from the catch.

12. A method of opening and closing an impact resistant lock according to any one of claims 1 to 11, comprising:

13. The switching method according to claim 12, further comprising a driving part for driving the cam mechanism to swing, a first travel switch for detecting a locked state of the tongue part by contact with the tongue part, and a second travel switch for detecting a travel state of the cam mechanism by contact with a large-wheelbase edge of the cam, the first travel switch and the second travel switch being electrically connected to the driving part; in the locking state, the first travel switch is in a conducting state in contact with the large-wheelbase edge of the cam, and the second travel switch is in a conducting state in contact with the bolt part;