Anti-knock locks and lock sets

Abstract

This utility model provides an anti-side-knock lock and a lock kit. The anti-side-knock lock includes a lock body, a bolt, a lock cylinder assembly, a first reset member, a pin, and a second reset member. The lock cylinder assembly includes a rotor with an eccentric portion. The bolt has a locking position, and the first reset member cooperates with the bolt. Under the restoring force of the first reset member, the bolt tends to move towards a first position. The eccentric portion cooperates with the locking position, and the rotor rotation forces the bolt to move towards a second position. The bolt has a pin hole, and the second reset member and the pin are located in the pin hole. The pin restricts the movement of the bolt. The pusher includes a central post and a pusher. The lock cylinder assembly has a sliding hole along a first direction and located at the first axis, which connects to the keyhole. The central post is located in the sliding hole. The pusher, the pin, and the second reset member abut against the bolt in sequence. When the central post is pushed, the pin disengages from the lock body. The lock kit includes a lock and a key. This utility model reduces manufacturing difficulty and is applicable to lock types with a central keyhole.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an anti-side-knock lock and a lock set. Background Technology

[0002] Chinese utility model patent CN114991594A discloses an anti-side-knock lock. The anti-side-knock lock includes a lock body, a rotor structure, a bolt, a first pin, and a second pin. The rotor structure includes a rotor body and a sliding component that can slide axially on the rotor body. The lock body has a first pin hole, and the bolt has a second pin hole. The sliding component can move axially when pushed by a key. When the anti-side-knock lock is in the aligned state, the sliding component is in the second position, and the first and second pins are respectively located within the first and second pin holes, allowing the eccentric body to push the bolt. When the anti-side-knock lock is in the misaligned state, the bolt is in the engaged position, the first and second pin holes and the sliding space are sequentially connected, the sliding component is in the first position, and at least a portion of the first pin enters the second pin, restricting the movement of the bolt, thereby achieving anti-side-knock protection.

[0003] The problem with existing anti-side-knock locks is that this anti-side-knock structure only applies to locks with the keyhole located on one side, and, as shown in Appendix CN114991594A... Figure 3 The rotor body of the rotor structure shown serves as the unlocking component of the lock, and the sliding component of the rotor structure serves as the anti-side-knock component. The unlocking component and the anti-side-knock component are integrated into one unit, which makes the component structure relatively complex. The unlocking component, the anti-side-knock component, and the multiple components associated with them have high precision requirements and are difficult to process. Utility Model Content

[0004] The primary objective of this invention is to provide a side-knock-proof lock that reduces manufacturing difficulty and is suitable for use with a central keyhole.

[0005] The second objective of this invention is to provide a lock kit that reduces manufacturing difficulty and is suitable for anti-side-knock locks with a central keyhole.

[0006] The first objective of this utility model is to provide an anti-knock lock comprising a lock body, a bolt, a lock cylinder assembly, a first reset member, a pin, and a second reset member, wherein the lock cylinder assembly includes a rotor and a keyhole; the rotor rotates about a first axis extending in a first direction, and the rotor is provided with an eccentric portion relative to the first axis; the bolt is configured to reciprocate along a second direction, and the bolt is provided with a latching position; the first reset member cooperates with the bolt, and under the restoring force of the first reset member, the bolt tends to move towards the first position; the eccentric portion cooperates with the latching position, and when the rotor rotates, the eccentric portion forces the bolt to move towards the second position; the bolt is provided with a pin hole extending along the first direction, and the pin hole and the keyhole are connected to the bolt. The engaging positions are arranged sequentially along the second direction. The second reset member and the pin are disposed in the pin hole. The pin cooperates with the lock body to restrict the movement of the bolt along the second direction. The push member includes a central post and a push top. The central post is located at the first axis, and the push top is located on the outer periphery of the first axis. The lock cylinder assembly is provided with a sliding hole arranged along the first direction at the first axis, and the sliding hole is connected to the keyhole. The central post is movably disposed in the sliding hole along the first direction. The push top, the pin, the second reset member and the bolt abut against each other in sequence. The central post can move from the third position to the fourth position in the direction away from the keyhole entrance. When the central post is in the fourth position, the pin is inserted into the pin hole and disengages from the lock body.

[0007] As can be seen from the above scheme, under this configuration, when the key is inserted into the keyhole, the key pushes against the central pin, causing the pusher to move axially and push the pin further into the pin hole, thereby releasing the limiting fit between the pin and the lock body in the second direction. Then, turning the key unlocks the lock. Importantly, in this configuration, the anti-knock pin and the rotor are located at different positions along the first axis in the second direction. This configuration is suitable for lock types where the keyhole is centered. Furthermore, compared to the prior art, the rotor structure is simpler and easier to manufacture.

[0008] A further option is to provide an eccentric part with a clearance groove located at the first axis, wherein the clearance groove, the sliding hole and the keyhole are connected sequentially along the first direction, and the central post is located in the clearance groove.

[0009] As can be seen from the above, under this configuration, a clearance groove can be formed simply by drilling a hole at the center of the eccentric part of the rotor, and the requirement to avoid the center column can be met through simple processing.

[0010] A further embodiment includes a connecting plate for the pusher, which is connected between the central column and the pusher head; the connecting plate is provided with a clearance hole, which is located on the outer periphery of the first axis and extends circumferentially along the first axis; the eccentric part passes through the clearance hole.

[0011] As can be seen from the above, the connecting plate enables the connection between the pusher, which is far from the first axis, and the central column located at the first axis, while the clearance hole prevents the connecting plate from affecting the rotor rotation.

[0012] A further proposed solution is to have the center post protrude from the connecting plate toward the latch, and the pusher head protrude from the connecting plate toward the latch.

[0013] As can be seen from the above, this arrangement allows the pusher to extend a sufficient distance axially along the first axis to meet the distance requirement between the keyhole and the pin.

[0014] A further approach is to ensure that the angle at which the clearance hole extends circumferentially is greater than or equal to the angle at which the eccentric part extends circumferentially.

[0015] A further proposed solution is to set the eccentric part at an angle of 180 degrees in the circumferential direction, and the clearance hole at an angle of 270 degrees in the circumferential direction.

[0016] As can be seen from the above, with this setup, the rotor's rotation range can be limited using the clearance hole. Even better, with the eccentric portion extending at an angle of 180 degrees in the circumferential direction and the clearance hole extending at an angle of 270 degrees in the circumferential direction, the semi-circular eccentric portion is easier to machine.

[0017] Another further solution is that when the central column is in the third position, the entire central column is located inside the sliding hole.

[0018] As can be seen from the above, this setting reduces the likelihood of detecting the presence of the central pillar to some extent.

[0019] Another further solution is to set the installation position of the lock body and the lock cylinder assembly in the installation position; the lock body is provided with an installation groove along the first direction, the groove opening of the installation groove is connected to the installation position, and the push top is located in the installation groove.

[0020] As can be seen from the above, this design makes the installation of the pusher component simpler.

[0021] The second objective of this utility model is to provide a lock set including a lock and a key; the lock uses the aforementioned anti-side-knock lock.

[0022] A further solution is to have a protrusion on the key; when the key enters the keyhole, the protrusion enters the sliding hole and forces the central post to move from the third position to the fourth position. Attached Figure Description

[0023] Figure 1 This is a structural cross-sectional view of an embodiment of the anti-side-knock lock of this utility model.

[0024] Figure 2 This is a structural diagram of the hidden lock body in an embodiment of the anti-side-knock lock of this utility model.

[0025] Figure 3 This is a structural diagram of the lock cylinder assembly, pusher, pin, and second reset component in an embodiment of the anti-side-knock lock of this utility model.

[0026] Figure 4 This is an exploded view of the lock cylinder assembly and pusher component in an embodiment of the anti-side-knock lock of this utility model.

[0027] Figure 5 This is a structural diagram of the lock body in an embodiment of the anti-side-knock lock of this utility model.

[0028] Figure 6 for Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0029] Examples of anti-side-knock locks and lock sets

[0030] See Figure 1 and Figure 2 The lock set includes a side-knock resistant lock and a key (not shown). In this embodiment, the side-knock resistant lock is a padlock.

[0031] The anti-side-knock lock includes a lock body 1, a lock cylinder assembly 2 disposed within the lock body 1, a bolt 3, a pusher 4, a pin 51, a second reset member 52, a first reset member 61, and a lock ring 9.

[0032] The lock body 1 is provided with an installation position 101, a bolt channel 102 and an installation groove 103. The installation position 101 is centered on the first axis L and is connected to the bolt channel 102 along the axial direction of the first axis L (i.e., the first direction of this utility model, the up-down direction shown in the figure). The bolt channel 102 extends radially along the first axis L (also the second direction of this utility model, the left-right direction shown in the figure). Along the second direction, the installation groove 103 is provided on one side of the installation position 101 and the two are connected to each other. The installation groove 103 is connected to the bolt channel 102 along the first direction.

[0033] The lock cylinder assembly 2 is disposed in the installation position 101. The pusher 4 includes a central post 41, a connecting plate 42, and a pusher 43. The central post 4 and the connecting plate 42 are both located in the installation position 101, and the pusher 43 is located in the installation groove 103. The lock tongue 3 and the first reset member 61 are disposed in the lock tongue channel 102, and the second reset member 52 is disposed inside the lock tongue 3. The pin 51 is disposed inside the lock tongue 3 between the lock tongue 3 and the installation groove 103. Both the first reset member 61 and the second reset member 52 are pressure springs.

[0034] In addition, the locking ring 9 is slidably installed in the lock body 1 along the first direction, and the locking ring 9 is provided with a latch position 99 located in the lock body 1.

[0035] The lock cylinder assembly 2 includes a rotor that rotates about a first axis L extending in a first direction. The rotor is provided with an eccentric portion 21 relative to the first axis L. The latch 3 can reciprocate along the latch channel 102 in a second direction. The latch 3 is provided with an engagement position 31. A first reset member 61 cooperates with the latch 3. Under the restoring force of the first reset member 61, the latch 3 tends to move along the second direction and toward a first position. The eccentric portion 21 cooperates with the engagement position 31. When the rotor rotates, the eccentric portion 21 forces the latch 3 to move along the second direction and toward a second position. Figure 1 The bolt 3 is shown in the first position, and the latch end 39 of the bolt 3 in the first position is engaged with the engagement position 99 of the locking ring 9 to restrict the movement of the locking ring 9 in the first direction, thus keeping the locking ring 9 in the locked position. When the eccentric part 21 forces the bolt 3 to move in the second direction toward the second position, the latch end 39 of the bolt 3 is disengaged from the engagement position 99 of the locking ring 9, and the locking ring 9 is pushed to the unlocked position under the action of the spring.

[0036] See Figures 2 to 4 The pusher 4 includes a central column 41, a connecting plate 42, and a pusher 43 connected in sequence. The central column 41 is located at the first axis L, the pusher 43 is located on the outer periphery of the first axis L, and the connecting plate 42 connects the central column 41 and the pusher 43. The central column 41 protrudes from the connecting plate 42 away from the latch 3, and the pusher 43 protrudes from the connecting plate 42 towards the latch 3. The connecting plate 42 is provided with a clearance hole 420, which is located on the outer periphery of the first axis L and extends circumferentially along the first axis L. In this embodiment, the clearance hole 420 extends at an angle of 270 degrees in the circumferential direction.

[0037] Combination Figure 1 The lock cylinder assembly 2 includes a keyhole 202. The lock cylinder assembly 2 is provided with a sliding hole 201 disposed along a first direction at a first axis L, and the sliding hole 201 communicates with the keyhole 202 along the first direction. An eccentric portion 21 is provided with a clearance groove 210 located at the first axis L, and the clearance groove 210, the sliding hole 201, and the keyhole 202 are sequentially connected along the first direction.

[0038] The central post 41 is located at the first axis and is inserted into the sliding hole 201 and the clearance groove 210. The eccentric part 21 passes through the clearance hole 420, and the lower end of the central post 41 is aligned with the keyhole 202. The pusher top 43 protrudes towards the latch 3. In this embodiment, the eccentric part 21 is set at an angle of 180 degrees in the circumferential direction, that is, the eccentric part 21 is semi-circular. Thus, the difference between the angle of the clearance hole 420 in the circumferential direction and the angle of the eccentric part 21 in the circumferential direction is greater than or equal to 90 degrees, that is, the eccentric part 21 can rotate at least 90 degrees around the first axis in the clearance hole 420.

[0039] Combination Figure 5The mounting groove 103 is provided with a slot 1031. Since the mounting groove 103, the slot 1031 and the mounting position 101 are all connected to the bottom of the lock body 1 and all extend along the first direction, and the slot 1031 is connected to the mounting position 101, during the process of installing the pusher 4 from the bottom of the lock body 1 to the mounting position 101 along the first direction, the pusher 43 can extend through the slot 1031 to the mounting groove 103, enter the mounting groove 103 and be installed in place.

[0040] See Figure 1 and Figure 6 The locking tongue 3 is provided with a pin hole 32 extending along the first direction, and the pin hole 32 and the engaging position are arranged sequentially along the second direction. The second reset member 52 and the pin body 51 are arranged in the pin hole 32.

[0041] Combined Figure 2 and Figure 3 The central post 41 is movably disposed in the sliding hole 201 along the first direction, and the push top 43, pin 51, second reset member 52 and lock tongue 3 abut against each other in sequence along the first direction. The central post 41 can move from a third position to a fourth position away from the keyhole 202 entrance. Figure 1 The central post 41 is in the third position, at which point the pin 51 protrudes slightly from the bolt 3. The pin 51 and the lock body 1 are engaged in a limiting action along the second direction to restrict the movement of the bolt 3, which is in the first position, along the second direction. Furthermore, under the restoring force of the second reset member 61, the pin 51 remains in its current position, and the lock is in an anti-knock state.

[0042] Not shown, the lock set has a key-mounted protrusion; when the key enters the keyhole 202, this protrusion enters the sliding hole 201 and forces the center pin 41 to move from the third position to the fourth position. Simultaneously, the pusher 43 pushes the pin 51 further into the pin hole 32 of the bolt 3. When the center pin 41 is in the fourth position, the pin 51 is in the pin hole 32 and disengages from the lock body 1. At this point, the bolt 3 regains its freedom of movement in the second direction, and the anti-knock state is released.

[0043] As can be seen, under the design of the anti-side-knocking lock of this utility model, when the key is inserted into the keyhole 202, the key pushes the central post 41, causing the pushing top 43 to move axially and push the pin 51 further into the pin hole 32, thereby releasing the limiting cooperation between the pin 51 and the lock body 1 in the second direction. Then, turning the key can unlock the lock. Mainly, as... Figure 1As shown, in this configuration, the anti-knock pin 51 and the rotor are located at different positions in the second direction from the first axis L. The lock cylinder assembly 2 is located at the center of the lock body 1, that is, the middle position in the second direction, while the anti-knock assembly (pin 51 and second reset member 52) is located at a side-biased position in the second direction. This configuration is suitable for lock types where the keyhole 202 is located in the center. Moreover, compared with the prior art, the rotor structure is simpler. For example, in this embodiment, it is only necessary to process a through hole in the center of a common semi-circular eccentric rotor to complete the processing of technical features such as clearance groove and sliding hole, thus reducing the manufacturing difficulty.

[0044] In addition, such as Figure 1 As shown, when the central pillar 41 is in the third position, the entire central pillar 41 is located within the sliding hole 201. This arrangement reduces the likelihood of noticing the presence of the central pillar 41 to some extent.

[0045] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A side-knocking lock, comprising a lock body, a bolt disposed within the lock body, a lock cylinder assembly, a first reset member, a pin, and a second reset member, wherein the lock cylinder assembly includes a rotor and a keyhole; The rotor rotates about a first axis extending in a first direction, and the rotor is provided with an eccentric portion relative to the first axis. The latch is configured to reciprocate along a second direction. The latch is provided with a latching position. The first reset member cooperates with the latch. Under the restoring force of the first reset member, the latch tends to move toward the first position. The eccentric part engages with the latching position, and when the rotor rotates, the eccentric part forces the locking tongue to move toward the second position; Its features are: The latch is provided with a pin hole extending along the first direction, the pin hole and the engagement position are arranged sequentially along the second direction, the second reset member and the pin body are disposed in the pin hole, and the pin body cooperates with the lock body to restrict the movement of the latch along the second direction; It also includes push-up components; The pusher includes a central column and a pusher head, the pusher head being located on the outer periphery of the first axis; The lock cylinder assembly is provided with a sliding hole located at the first axis along the first direction, and the sliding hole is connected to the keyhole. The central post is movably disposed in the sliding hole along the first direction. The push top, the pin, the second reset member and the lock tongue abut against each other in sequence. The central post can move from a third position to a fourth position in the direction opposite to the keyhole entrance. When the central post is in the fourth position, the pin is inserted into the pin hole and disengages from the lock body.

2. The anti-knock lock according to claim 1, characterized in that: The eccentric portion is provided with a clearance groove located at the first axis. The clearance groove, the sliding hole and the keyhole are connected sequentially along the first direction, and the central column is located in the clearance groove.

3. The anti-side-knock lock according to claim 2, characterized in that: The pusher also includes a connecting plate, which is connected between the central column and the pusher. The connecting plate is provided with a clearance hole, which is located on the outer periphery of the first axis and extends circumferentially along the first axis. The eccentric portion passes through the clearance hole.

4. The anti-side-knock lock according to claim 3, characterized in that: The central post protrudes from the connecting plate toward the latch, and the pusher protrudes from the connecting plate toward the latch.

5. The anti-side-knock lock according to claim 3, characterized in that: The difference between the angle at which the clearance hole extends in the circumferential direction and the angle at which the eccentric portion extends in the circumferential direction is greater than or equal to 90 degrees.

6. The anti-side-knock lock according to claim 5, characterized in that: The eccentric portion extends at an angle of 180 degrees in the circumferential direction, and the clearance hole extends at an angle of 270 degrees in the circumferential direction.

7. The anti-knock lock according to any one of claims 1 to 6, characterized in that: When the central column is in the third position, the entire central column is located inside the sliding hole.

8. The anti-side-knock lock according to any one of claims 1 to 6, characterized in that: The lock body is provided with an installation position, and the lock cylinder assembly is provided with the installation position; The lock body is provided with a mounting groove along the first direction, the groove opening of the mounting groove is connected to the mounting position, and the push top is located in the mounting groove.

9. Lock set, including lock and key; Its features are: The lock is an anti-side-knock lock as described in any one of claims 1 to 8.

10. The lock set according to claim 9, characterized in that: The key is provided with a protrusion; When the key enters the keyhole, the protrusion enters the sliding hole and forces the central post to move from the third position to the fourth position.

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