TWM589224U - Lock with anti-knock opening mechanism - Google Patents

Abstract

The present invention is a lock, which includes a lock shell and a drive shaft, a lock component, a positioning member and a lock core component provided on the lock shell; the drive shaft can rotate relative to the lock shell, and its ring wall surface protrudes with a shaft limit Positioning part; the locking assembly has a stop part and a driving part, the stop part can move up and down, and can move down to the movement path of the shaft limit part; the driving part can restrict the moving of the stop part upward, and then lock The component restricts the rotation of the drive shaft to lock the lock; the lock core component can push the driving part laterally to unlock or lock the lock; the positioning member has a downwardly extending upper lock groove, when the lock is locked, the lock groove It is sleeved outside the fixed driving part; thereby, even if the lock is knocked when it is locked, the driving part will not be laterally moved and unlocked, which can improve the safety of the lock.

Description

Lock with anti-knock opening mechanism

This creative department relates to a lock, especially a lock with a knock-proof opening mechanism.

As shown in FIG. 7, the existing lock includes a lock shell 91, a drive shaft 92, a handle 93 and a lock core 94; one side of the lock shell 91 can be fixed on a door panel (not shown); the drive shaft 92 It is rotatably installed in the lock shell 91; one end of the drive shaft 92 is connected to the handle 93, and the other end can be connected to the latch structure of the door panel (not shown); the latch structure usually protrudes from the door panel and passes through the door frame (in the figure (Not shown) to fix the door panel in the closed state; when the user wants to open the door, the handle 93 is turned, and the handle 93 rotates the drive shaft 92 in a door opening rotation direction R (as shown in FIG. 10), thereby shrinking the latch structure The door panel and enable the door panel to open.

A lock assembly 95 is provided between the lock core 94 and the drive shaft 92, and the first limit plate 951 of the lock assembly 95 is movably provided in the rotational movement path of the stop portion 921 of the drive shaft 92; the lock assembly 95 has a Unlocked state (as shown in Figure 7) and a locked state (as shown in Figure 9).

7 and FIG. 10, in the unlocked state, the first limit plate 951 can slide up and down in the lock housing 92, so when the drive shaft 92 rotates in the door opening rotation direction R, the stopper 921 can move The first limiting plate 951 is pushed upward, and the locking assembly 95 does not limit the rotation of the drive shaft 95; at this time, the user can turn the handle 93 and open the door panel.

Please further refer to FIGS. 8 and 9. In the locked state, the second limiting member 952 is driven by the lock core 94 to move laterally to the top side of the first limiting plate 951. Second limit The piece 952 is restricted from moving upward, so that the first limiting plate 951 restricts the driving shaft 92 from rotating in the door opening rotation direction R; at this time, the handle 93 is fixed and cannot be rotated, and the user cannot open the door panel.

As for the specific details of the lock cylinder 94 driving the second limiting member 952: a side of the second limiting member 952 protrudes with a cylindrical driving portion 9521; the user can turn the arm 941 of the lock cylinder 94 by the key; the arm 941 pushes the driving portion 9521 to move the second limiting member 952 laterally, and switches the locking assembly 95 between the unlocked and locked states.

Please further refer to FIG. 8 and FIG. 9, the lock shell 91 is provided with an elastic rod body 96, and a protrusion portion 961 is formed on the rod body 96. The protrusion portion 961 protrudes upward and is located in the lateral movement path of the driving portion 9521 to The position of the driving portion 9521 is limited to one side of the protruding portion 961 to keep the locking assembly 95 in an unlocked or unlocked state; when the user turns the key, the pushing force of the arm 941 is sufficient to bend and deform the lever body 96 downward Then, the driving portion 9521 is forced to move over the protruding portion 961 to the other side of the protruding portion 961, so that the lock assembly 95 can be switched back and forth between the unlocked state and the locked state.

However, when the locking assembly 95 is in the locked state (as shown in FIG. 9), if a malicious user taps the lock housing 91 from the side, the second limiting member 952 will move laterally due to the impact and cause the driving part 9521 forces over the protrusion 961, causing the locking assembly 95 to switch from the locked state to the unlocked state; in short, as long as the existing lock is knocked sideways, the lock will automatically unlock, so malicious users can use the key without using Easily open the locked door panel, causing safety problems. If the protruding amount of the protruding portion 961 is increased in order to avoid being easily knocked, the force required by the arm 941 to push the driving portion 9521 past the protruding portion 961 will also increase, making it difficult for the user to open the lock with the key, resulting in inconvenient.

Therefore, the prior art locks need to be improved.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a lock to prevent the lock from being automatically unlocked when struck.

In order to achieve the above-mentioned creative purpose, the technical means adopted in this creation is to design a lock with an anti-knock opening mechanism, which is arranged on a door panel, and is used to connect a latch of the door panel, the anti-knock device The lock of the opening mechanism includes: a lock housing; a drive shaft that rotatably penetrates the lock housing, one end of the drive shaft is connected to the latch, and the other end is a handle connection end; wherein, when the drive shaft opens along a door When rotating in the direction of rotation, the rotation of the drive shaft causes the latch to retract into the door panel; the ring wall surface of the drive shaft protrudes from a shaft limiter; a locking component is provided in the lock housing and is selectively The drive shaft is restricted from rotating in the door-opening rotation direction, and the locking assembly has: a stop portion movably disposed in the lock housing, the stop portion can move in a stop direction to the movement of the shaft limit portion On the path, and can move out of the movement path of the shaft limiter in a disengagement direction; a driving part, which is movably disposed in the lock housing; wherein, when the driving part moves in a locking direction, the The driving part restricts the movement of the stopper in the disengagement direction, so that the stopper restricts the rotation of the drive shaft in the door-opening rotation direction; a positioning member, which can move along the stopper direction or the disengagement direction, is provided at In the lock housing; the positioning member is concavely provided with a locking groove toward the stop direction; wherein, when the stop portion of the lock assembly restricts the driving shaft to rotate in the door opening rotation direction, the locking groove Sleeved outside the driving part of the lock assembly; a lock core assembly, which is arranged in the lock housing and has a rotatable arm; the arm selectively pushes the positioning member toward the stop direction, And the locking groove can be detached from the driving part; the arm lever selectively pushes the driving part, and can move the driving part in the unlocking direction.

The advantage of this creation is that the lock includes a movable positioning member, the positioning member has a locking groove, and the locking groove extends toward the stop direction, in other words, the extending direction of the locking groove is perpendicular to The moving direction of the driving part of the locking component (that is, the unlocking direction); when the lock is locked, the upper part of the positioning member The lock groove is sleeved outside the driving part of the locking component to restrict the movement of the driving part in the unlocking direction; thereby, when the lock is locked, even if the lock shell is knocked, the knocking will only be in a single direction. When unlocking, it is necessary to move the driving part in two different directions, so simple tapping can not move the driving part to unlock the lock, thereby preventing malicious users from easily opening the locked door panel, which can improve the lock Security.

Further, the lock with the anti-knock opening mechanism, wherein: the positioning member is further concavely provided with an unlocking groove toward the stop direction; wherein, when the stop portion of the lock assembly is located at the shaft limit When the moving path of the position part is outside, the unlocking groove is sleeved outside the driving part of the locking assembly.

Further, the lock with the anti-knock opening mechanism, wherein: the positioning member further has a middle abutting portion formed between the locking groove and the unlocking groove; the arm is selected It abuts against the middle abutting portion in the direction of the stop, and makes the driving portion spaced from the positioning member.

Further, the lock with the anti-knock opening mechanism, wherein: the positioning member further has: an unlocking groove which is recessed in the positioning member toward the stop direction; an unlocking abutment portion, It is located on the side of the locking groove away from the unlocking direction; a locking abutment is located on the side of the unlocking groove away from the locking direction; the arm of the lock core assembly is selectively directed toward the The direction of the stop pushes the unlocking abutment to disengage the locking groove from the driving portion; the arm selectively pushes the locking abutment toward the stop direction to disengage the unlocking groove from the driving unit.

Further, the lock with a knock-proof opening mechanism, wherein: the positioning member further has: an unlocking abutment portion, which is located on a side of the locking groove away from the unlocking direction; an upper locking abutment A rest portion, which is located on a side of the unlocking groove away from the locking direction; the arm of the lock core assembly selectively pushes the unlocking abutment portion toward the stop direction to disengage the locking groove from the Driving part; the arm lever selectively pushes the locking abutment part toward the stop direction, so that the unlocking groove disengages from the driving part.

Further, in the lock with the anti-knock opening mechanism, wherein the lock abutment portion and the middle abutment portion each have an arc surface; when the arm bar abuts against the arc of the lock abutment portion When facing, the distance between the arc surface of the locking abutment and the rotation center of the arm is equal to the distance between the arc surface of the middle abutment and the rotation center of the arm.

Further, the lock with the anti-knock opening mechanism, wherein the lock with the anti-knock opening mechanism further has at least one positioning elastic member connected to the positioning member and driving the positioning member toward the The direction of the opening of the locking groove moves.

10‧‧‧Lock shell

11‧‧‧Mounting column

20‧‧‧ drive shaft

21‧‧‧Block connecting end

22‧‧‧Hand connecting end

23‧‧‧Axis limiter

30‧‧‧Lock assembly

31‧‧‧First limit piece

311‧‧‧stop

312‧‧‧First stop surface

32‧‧‧Limited elastic parts

33‧‧‧Second limit piece

331‧‧‧Promotion Department

332‧‧‧Second stop surface

40‧‧‧Lock core assembly

41‧‧‧arm

50‧‧‧Settings

51‧‧‧Lock groove

52‧‧‧Unlock groove

53‧‧‧locked abutment

54‧‧‧Unlock the abutment

55‧‧‧ Central abutment

60‧‧‧position elastic

A‧‧‧handle

R‧‧‧door rotation direction

L‧‧‧Lock direction

UL‧‧‧Unlock direction

B‧‧‧stop direction

UB‧‧‧ out of direction

91‧‧‧Lock shell

92‧‧‧ drive shaft

921‧‧‧stop

93‧‧‧handle

94‧‧‧Lock core

941‧‧‧arm

95‧‧‧Lock assembly

951‧‧‧First limit plate

952‧‧‧Second limit piece

9521‧‧‧Promotion Department

96‧‧‧bar

961‧‧‧Projection

Figure 1 is a perspective view of the original creation.

Figure 2 is an exploded view of some elements of this creation.

3 to 6 are side action diagrams of the lock assembly and the positioning member of the present creation.

7 to 9 are side action diagrams of the lock assembly and the lever of the prior art lock.

10 is a side view of the drive shaft of the prior art lock.

The technical means adopted by this creation to achieve the intended purpose of creation will be further described in conjunction with the drawings and preferred embodiments of this creation.

Please refer to Figures 1 to 3, the lock of this creation is set on a door panel (not shown), and is connected to one of the door bolts (not shown); this creation allows the lock bolt to protrude from the door panel and It can be fixed in the door frame (not shown in the figure), or the lock bolt can be retracted into the door panel to open the door panel; the lock set of this creation includes a lock housing 10, a drive shaft 20, a locking component 30, a The lock core assembly 40 and a positioning member 50; and in this embodiment, it further includes at least one positioning elastic member 60.

One side of the aforementioned lock housing 10 can be fixed to the door panel; the aforementioned drive shaft 20 can rotatably penetrate the lock housing 10; in this embodiment, a mounting post 11 protrudes from the inner side of the lock housing 10; The opposite ends of the drive shaft 20 are a latch connection end 21 and a handle connection end 22 respectively. The latch connection end 21 can be connected to the aforementioned latch. The handle connection end 22 is used to connect the handle A; when the user turns the handle A, and When the drive shaft 20 is rotated in the door-opening rotation direction R, the rotation of the drive shaft 20 causes the latch to retract into the door panel to allow the user to open the door panel; in this embodiment, the ring wall surface of the drive shaft 20 protrudes with two shafts The limiting portion 23 and the two-axis limiting portion 23 are respectively located on opposite sides of the driving shaft 20, but not limited to this, and the number of the shaft limiting portion 23 may be only one.

The aforementioned lock assembly 30 is provided in the lock housing 10, and the lock assembly 30 can restrict the drive shaft 20 from rotating in the door opening rotation direction R; when the lock assembly 30 restricts the drive shaft 20 from rotating in the door opening rotation direction R, the user cannot turn the handle A (i.e. The door panel is in a locked state); the locking assembly 30 has a first limiting member 31, a limiting elastic member 32 and a second limiting member 33; the first limiting member 31 can be moved up and down in the lock housing 10 ; The bottom side of the first limiting member 31 has a stop portion 311; the two ends of the limiting elastic member 32 are respectively connected to the mounting post 11 and the first limiting member 31 to drive the first limiting member 31 to move downward On the movement path to the shaft limiter 23 (that is, the arc path drawn by the movement trajectory of the shaft limiter 23 when the drive shaft 20 rotates), and keep the stopper 311 against the shaft limiter 23 In order to avoid vibration and abnormal sound generated by the stop portion 311 and the shaft limiting portion 23; the limiting elastic member 32 is specifically a tension spring, but its pushing force is not enough to limit the rotation of the driving shaft 20 when the user rotates When the handle A is in use, the shaft limiter 23 can push the stopper 311 and move the stopper 23 upward beyond the movement path of the shaft limiter 23; the second limiter 33 can be moved to the left and right of the lock housing 10 Inside; a side of the second limiting member 33 protrudes with a cylindrical driving portion 331; in this embodiment, the first limiting member 31 has an upward facing first stop surface 312, the second limiting member 33 A second stop surface 332 facing downward, when the second stopper 33 moves laterally in a locking direction L, the second stop surface 332 moves above the first stop surface 312 and is adjacent to the first stop The blocking surface 312 (as shown in FIG. 5), at this time, the first limiting member 31 is restricted by the second limiting member 33 and cannot move upward to the shaft Outside the moving path of the limiter 23, and then the stopper 311 of the first limiter 31 restricts the rotation of the drive shaft 20 in the door-opening rotation direction R; the structure of the lock assembly 30 is not limited to this, the lock assembly 30 only needs to It has a stop portion 311 movable in the lock housing 10 and a driving portion 331 movable in the lock housing 10, and the stop portion 311 can move toward a stop direction B to the moving path of the shaft limit portion 23 , And can move in a disengagement direction UB out of the movement path of the shaft limiting portion 23; wherein, when the driving portion 331 moves in a locking direction L, the driving portion 331 restricts the stop portion 311 from moving in the disengaging direction UB, so that The stopper 311 restricts the drive shaft 20 from rotating in the door-opening rotation direction, so that; the locking direction L is left in this embodiment, the unlocking direction UL is right, the stopping direction B is downward, and the disengagement direction UB is Upwardly, in short, the specific linkage structure of the stopper 311 and the driving part 331 is not the focus of this creation, as long as the operation mode of the stopper 311 and the driving part 331 conforms to the description in this paragraph, for example, the driving part 331 The stopper 311 may be fixed to each other and move together.

The aforementioned lock core assembly 40 is provided in the lock housing 10 and has a rotatable arm 41; when the arm 41 rotates, it can push the driving portion 331 of the lock assembly 30 to move in the locking direction L or unlocking direction UL, thereby, The user can change the state of the lock assembly 30 with a key (not shown), and switch the lock assembly 30 between the locked state and the unlocked state.

The aforementioned positioning member 50 is movably disposed in the lock housing 10, and the positioning member 50 can move up and down along the stop direction B or the disengagement direction UB of the vertical unlocking direction UL; the positioning member 50 is concavely provided toward the stop direction B The locking groove 51, and in this embodiment, the positioning member 50 is further recessed toward the stopping direction B with an unlocking groove 52; the aforementioned positioning elastic member 60 is connected to the positioning member 50, and drives the positioning member 50 Move toward the opening direction of the upper locking groove 51, but the way of moving the positioning member 50 toward the opening direction of the upper locking groove 51 is not limited to this; please further refer to FIG. 4 and FIG. 5 in this embodiment In the middle, when the locking assembly 30 is switched to the locked state (that is, the driving portion 331 moves in a locking direction L, and the stop portion 311 restricts the drive shaft 20 rotates in the direction of door opening rotation R), the driving part 331 moves to the opening of the locking groove 51 in the locking direction L, and then the locking groove 51 is sleeved upward on the driving part by pulling the elastic member 60 331 outside and fix the driving part 331; and when the locking assembly 30 is switched to the unlocked state, the driving part 331 moves to the opening of the unlocking groove 52 in an unlocking direction UL with respect to the locking direction L, and is received by the unlocking groove 52 is set and fixed; the locking groove 51 and the unlocking groove 52 can limit the lateral position of the driving portion 331 to prevent the user from changing the state of the lock without rotating the lock core assembly 40 with a key; in this embodiment, the upper The locking groove 51 and the unlocking groove 52 and the unlocking direction UL are perpendicular to each other, but not limited to this, the angle between the locking groove 51 and the unlocking groove 52 and the unlocking direction UL may also be slightly larger or slightly smaller than 90 degrees, only The locking groove 51 and the unlocking groove 52 can be smoothly moved and sleeved outside the driving portion 331; in this embodiment, the positioning member 50 further has an locking abutment portion 53 and an unlocking abutment portion 54; the locking abutment portion 53 is located on the side of the unlocking groove 52 away from the locking direction L, the unlocking abutment portion 54 is located on the side of the unlocking groove 552 away from the unlocking direction UL; when the arm 41 rotates toward the locking direction L , It will first contact the locking abutment portion 53 to move the positioning member 50 downwards and disengage the unlocking groove 52 from the driving portion 331, and then the arm 41 continues to rotate in the locking direction L and push the driving portion 331; and when When the arm 41 rotates in the unlocking direction UL, it first contacts the unlocking abutment portion 54 to disengage the locking groove 51 from the driving portion 331, and then the arm 41 continues to rotate in the unlocking direction UL and push the driving portion 331.

In this embodiment, the positioning member 50 further has a middle abutment portion 55 formed between the locking groove 51 and the unlocking groove 52; when the arm 41 rotates to the locking groove 51 and the unlocking groove 52 In between, the arm 41 abuts the middle abutment portion 55 downwards, keeping the driving portion 331 and the top of the positioning member 50 spaced apart, so as to reduce the direct contact between the driving portion 331 and the positioning member 50 and causing parts to wear; In this embodiment, the lock abutment portion 53 and the middle abutment portion 55 each have an arc surface. When the arm 41 abuts the arc surface of the lock abutment portion 53, the arc surface of the lock abutment portion 53 The distance from the rotation center of the arm 41 is equal to the arc surface of the middle abutment portion 55 and The distance of the center of rotation of the arm 41 (as shown in FIG. 4 ), so that the arm 41 can smoothly move from the lock abutment portion 53 to the middle abutment portion 55.

Please refer to FIG. 3 to FIG. 6, this creation has an unlocked state (as shown in FIG. 3) and a locked state (as shown in FIG. 6 ); in the unlocked state, the second limiter 33 of the locking assembly 30 It can move up and down. At this time, the user can depress the handle A to rotate the drive shaft 20 to open the door panel; when switching from the unlocked state to the locked state, the user turns the arm 41 clockwise with a key (not shown) , The arm 41 first abuts the abutment portion 53 on the positioning member 50 and locks the locking groove 51 downward from the driving portion 331 (as shown in FIG. 4 ); then, the arm 41 continues to rotate and Push the driving part 331 above the opening of the locking groove 51 (as shown in FIG. 5); finally, the user rotates the arm 41 in the reverse direction to separate the arm 41 from the positioning member 50, thereby making the locking groove 51 Set the fixed driving part 331 (as shown in FIG. 6) to put the creation in the locked state; when you want to switch from the locked state to the unlocked state, you can reverse the operation.

In summary, the author further provides a positioning member 50 with a locking groove 51, and the extending direction of the locking groove 51 is perpendicular to the moving direction of the driving portion 331 of the locking assembly 30; When the lock is in the locked state, the locking groove 51 is sleeved with the driving portion 331, thereby preventing the driving portion 331 from moving and unlocking when the lock is impacted.

The above is only the preferred embodiment of the creation, and does not limit the creation in any way. Although the creation has been disclosed in the preferred embodiment as above, it is not intended to limit the creation. Generally, a knowledgeable person can use the technical content disclosed above to make some changes or modifications to equivalent embodiments without departing from the scope of this creative technical solution. Any content that does not deviate from this creative technical solution is based on this Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of the creation still fall within the scope of this creative technical solution.

10‧‧‧Lock shell

20‧‧‧ drive shaft

331‧‧‧Promotion Department

40‧‧‧Lock core assembly

41‧‧‧arm

50‧‧‧Settings

60‧‧‧position elastic

A‧‧‧handle

Claims (7)

A lock with an anti-knock-opening mechanism is provided on a door panel, and is used to connect a locking bolt of the door panel. The lock with an anti-knock-opening mechanism includes: a lock housing; a drive shaft, which can The lock case is rotatably penetrated; one end of the drive shaft is connected to the latch, and the other end is a handle connection end; wherein, when the drive shaft rotates in a door-opening rotation direction, the rotation of the drive shaft causes the latch to retract In the door panel; the ring wall surface of the drive shaft protrudes a shaft limiter; a locking component, which is provided in the lock housing, and selectively restricts the drive shaft from rotating in the door opening rotation direction, the locking component has: A stop portion is movably disposed in the lock housing, the stop portion can move to a movement direction of the shaft limit portion in a stop direction, and can move to a direction of the shaft limit portion in a disengagement direction Outside the moving path; a driving part, which is movably disposed in the lock housing; wherein, when the driving part moves in a locking direction, the driving part restricts the stop part from moving in the disengagement direction, so that the The stopper restricts the drive shaft to rotate in the door-opening rotation direction; a positioning member is movably provided in the lock housing along the stopping direction or the disengagement direction; the positioning member is recessed toward the stopping direction There is a locking groove; wherein, when the stop portion of the locking assembly restricts the drive shaft to rotate in the door opening rotation direction, the locking groove is sleeved outside the driving portion of the locking assembly; a lock core assembly , Which is provided in the lock housing and has a rotatable arm lever; the arm lever selectively pushes the positioning member toward the stop direction, and can make the locking groove disengage from the driving part; the arm lever The driving portion is selectively pushed, and the driving portion can be moved in the unlocking direction. The lock with an anti-knock opening mechanism according to claim 1, wherein: the positioning member is further concavely provided with an unlocking groove toward the stop direction; Wherein, when the stop portion of the lock assembly is located outside the movement path of the shaft limiting portion, the unlocking groove is sleeved outside the driving portion of the lock assembly. The lock with an anti-knock opening mechanism according to claim 2, wherein: the positioning member further has a middle abutment portion formed between the locking groove and the unlocking groove; the arm is selected It abuts the middle abutting portion in the direction of the stop, and makes the driving portion spaced from the positioning member. The lock with a knock-proof opening mechanism according to claim 1, wherein: the positioning member further has: an unlocking groove which is recessed in the positioning member in the direction of the stop; an unlocking abutment, It is located on the side of the locking groove away from the unlocking direction; a locking abutment is located on the side of the unlocking groove away from the locking direction; the arm of the lock core assembly is selectively directed toward the The direction of the stop pushes the unlocking abutment to disengage the locking groove from the driving portion; the arm selectively pushes the locking abutment toward the stop direction to disengage the unlocking groove from the driving unit. The lock with a knock-proof opening mechanism as described in claim 2, wherein: the positioning member further has: an unlocking abutment portion, which is located on a side of the locking groove away from the unlocking direction; an upper locking abutment A rest portion, which is located on a side of the unlocking groove away from the locking direction; the arm of the lock core assembly selectively pushes the unlocking abutment portion toward the stop direction to disengage the locking groove from the Driving part; the arm lever selectively pushes the locking abutment part toward the stop direction, so that the unlocking groove disengages from the driving part. The lock with an anti-knock opening mechanism according to claim 5, wherein the lock abutment portion and the middle abutment portion each have an arc surface; when the arm abuts against the arc of the lock abutment portion Face to face, the lock The distance between the arc surface of the abutment portion and the rotation center of the boom is equal to the distance between the arc surface of the middle abutment portion and the rotation center of the boom. The lock with a knock-proof opening mechanism according to any one of claims 1 to 6, wherein the lock with a knock-proof opening mechanism further has at least one positioning elastic member, which is connected to the positioning member, and drives The positioning member moves toward the opening of the locking groove.

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