A password lock with an anti-misoperation function

Abstract

The utility model provides a password lock with anti -misoperation function. Mainly solve the problem that the current password lock is easy to appear misoperation when unlocking. Its characterized in be, the unlocking rod includes the first position of push lock core and make lock core remove the locking of lock head and lock the password wheel and make it inconvertible rotation;Push the rotor and make the password wheel be in the second position of the encodable state of password wheel can rotate relative to the rotor;The third position of password lock locking. The utility model provides a password lock with anti -misoperation function, and the single press unlocking process is decomposed into two stages: the first stage, press operation only removes mechanical locking, and the password wheel cannot rotate;The second stage, then remove the locking of password wheel, allow password change or re -encoding. Through this " first press unlocking machinery, then operation release password wheel " two -segment type flow, can fundamentally eliminate the password wheel misoperation caused by press action, greatly improve the operation reliability, security and user experience of lock.

Description

Technical Field

[0001] This utility model relates to the field of combination locks, specifically to a combination lock with anti-misoperation function. Background Technology

[0002] In a push-to-unlock combination lock, the core components include a mechanical lock structure and a combination wheel structure. A typical design works as follows: the user first rotates the combination wheel to input the correct code and complete the password verification; then, by directly pressing the handle, button, or lock cylinder, the user activates the internal mechanical transmission mechanism (such as a lever, linkage, or cam) to release the bolt or latch, thus unlocking the lock.

[0003] However, this traditional press-to-unlock solution has an inherent operational risk: at the moment the user performs the final press to trigger the mechanical unlock, the combination wheel is often still in an unlocked and freely adjustable state. The palm, fingers, or tools can easily touch or scratch the combination wheel unintentionally, causing it to rotate unexpectedly. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a combination lock with anti-misoperation function, which mainly solves the problem that current combination locks are prone to misoperation when unlocking.

[0005] The technical solution of this utility model is as follows: A combination lock with anti-misoperation function includes a housing, on which a mechanical lock assembly and a combination lock assembly are mounted. The mechanical lock assembly includes a cooperating lock cylinder and a lock head, and the combination lock assembly includes an unlocking rod, a rotor sleeved on the unlocking rod, and a combination wheel cooperating with the rotor; characterized in that... The unlocking lever includes Pushing the lock cylinder releases the lock cylinder from the lock head and locks the combination wheel to the first position, preventing it from rotating; The rotor is pushed to bring the code wheel to a second position, which is a rotatable encoding state relative to the rotor; The third position when the combination lock is locked.

[0006] The housing is provided with a sliding groove, and the lock cylinder is slidably engaged with the sliding groove. A first elastic element is provided in the sliding groove, and the first elastic element is used to apply force to lock the lock cylinder and the lock head.

[0007] The unlocking lever includes a lever body, the tail end of which engages with the inclined surface of the lock cylinder to push the lock cylinder to move.

[0008] The unlocking lever also includes a pressing head, and the lever body is provided with a positioning pin. The rotor includes a first rotor near the pressing head, and the first rotor is provided with a positioning groove. When the unlocking lever is in the first position, the positioning pin is located in the positioning groove.

[0009] The housing is also provided with a baffle wall, and a second elastic element is sleeved on the circumferential outer wall of the rod. The rotor includes a second rotor at the end along the direction of the rod. One end of the second elastic element presses on the second rotor, and the other end presses against the baffle wall.

[0010] The rotor has a limiting groove on its circumferential outer wall and a limiting block on the inner wall of the housing. When the unlocking rod is in the second position, the limiting block is located in the limiting groove and the pressing head is in contact with the axial outer wall of the first rotor.

[0011] The housing is provided with a recessed groove, and a third elastic element is provided at the bottom of the recessed groove. The lock head extends into the recessed groove, and the third elastic element contacts the lock head.

[0012] The first elastic element is a spring.

[0013] The second elastic element is a spring.

[0014] The third elastic element is a spring.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a combination lock with anti-misoperation function, which decomposes the single pressing unlocking process into two stages: In the first stage, the pressing operation only unlocks the mechanical lock, and the combination wheel cannot rotate; in the second stage, the combination wheel is unlocked, allowing the combination to be changed or re-encoded. Through this two-stage process of "pressing to unlock the mechanical lock first, and then operating to release the combination wheel," the accidental activation of the combination wheel caused by the pressing action can be fundamentally eliminated, greatly improving the operational reliability, security, and user experience of the lock. Attached Figure Description

[0016] Figure 1 This is a perspective view of one embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0018] Figure 3 This is a partial perspective view of one embodiment of the present invention.

[0019] Figure 4 This is a partial perspective view of one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of a password wheel according to an embodiment of the present invention.

[0021] Figure 6 This is a partial perspective view of one embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings. A combination lock with anti-misoperation function includes a housing 1. A mechanical lock assembly and a combination lock assembly are installed on the housing. The mechanical lock assembly includes a lock cylinder 21 and a lock head 22 that cooperate with each other. The combination lock assembly includes an unlocking rod 31, a rotor 32 sleeved on the unlocking rod, and a combination wheel 33 that cooperates with the rotor. The unlocking rod includes a first position in which it pushes the lock cylinder to release the lock head and locks the combination wheel so that it cannot rotate. The rotor is pushed to place the combination wheel in a second position, which is a coded state that allows it to rotate relative to the rotor; the third position is when the combination lock is locked.

[0023] The key to this application is that the unlocking lever is designed to have three distinct and interlocking working positions: the first position (unlocking position): when the password is correct and a force with sufficient travel is applied to the unlocking lever (the finger pushes the unlocking lever to cause axial displacement), the unlocking lever moves, which in turn pushes the lock cylinder, causing the lock cylinder to overcome the elastic force and move, thereby releasing the lock head and unlocking.

[0024] Second position (encoding position): When the force in the first direction is continued to be applied to the unlocking lever, it pushes the rotor to move axially (specifically by pushing the bottom end face of the pressing head), causing the code wheel to disengage from the rotor's constraint (this part is existing technology, usually using a stop 330 on the code wheel and a corresponding second stop 320 on the rotor, with torque transmitted through the two stops; when the rotor is pushed to move, the stop and the second stop will separate, at which point the code wheel can rotate freely), entering a "freely rotatable" encoding state, at which point the user can rotate the code wheel to set or change the code.

[0025] Third position (locked / initial position): At this time, the combination lock is in the locked state, and the unlocking lever does not drive the lock cylinder or rotor.

[0026] In this embodiment, as shown in the figure, the housing is provided with a sliding groove 11, and the lock cylinder slides in cooperation with the sliding groove. A first elastic element 111 is provided within the sliding groove. The first elastic element applies force to keep the lock cylinder and the lock head in a locked state. The first elastic element continuously applies force to maintain the lock cylinder in a locked engagement with the lock head when not unlocked. Simultaneously, the first elastic element also provides the power required for the unlocking lever to reset when no force is applied.

[0027] In this embodiment, as shown in the figure, the unlocking lever includes a lever body 311, the tail end of which engages with the inclined surface of the lock cylinder to push the lock cylinder to move. The axial thrust of the unlocking lever is converted into lateral displacement of the lock cylinder.

[0028] In this embodiment, as shown in the figure, the unlocking lever further includes a pressing head 312, and the lever body is provided with a positioning pin 3111. The rotor includes a first rotor 321 near the pressing head, and the first rotor is provided with a positioning groove 3211. When the unlocking lever is in the first position, the positioning pin is located in the positioning groove. Only when the password is correct and the rotor rotates to a specific angle (i.e., the unlocking position) will the positioning groove align with the positioning pin on the lever body. When the unlocking lever is pressed to the first position, the positioning pin can extend into the positioning groove. At this time, the axial movement of the unlocking lever will not drive the axial movement of the rotor. The rotor has a through hole in the center for the lever body to pass through. The rotor itself is installed by the support wall 19 inside the housing. At the same time, since the unlocking lever itself is not rotatable (because the pressing head is limited by the rectangular mounting groove and cannot rotate), when the rotor and the unlocking lever are engaged together, the rotor cannot rotate, and thus the password wheel cannot rotate either.

[0029] In this embodiment, as shown in the figure, a baffle wall 13 is also provided inside the housing, and a second elastic element 313 is sleeved on the circumferential outer wall of the rod. The rotor includes a second rotor 324 at the end along the direction of the rod. One end of the second elastic element presses against the second rotor, and the other end presses against the baffle wall. The second elastic element provides a restoring force for the rotor assembly to return from the second position to the third position.

[0030] In this embodiment, as shown in the figure, the circumferential outer wall of the rotor is provided with a limiting groove 325, and the inner wall of the housing is provided with a limiting block 15. When the unlocking rod is in the second position, the limiting block is located in the limiting groove, and the pressing head contacts the axial outer wall of the first rotor. This structure achieves temporary fixation of the rotor position in the coding state, keeping it detached from the code wheel for easy operation of the code wheel. Simultaneously, the rotor can only be pushed when the code is correct.

[0031] In this embodiment, as shown in the figure, the housing is provided with a recessed groove 14, and a third elastic element 141 is provided at the bottom of the recessed groove. The lock head extends into the recessed groove, and the third elastic element contacts the lock head. The contact between the third elastic element and the lock head provides a preload, which helps to stabilize the lock head when locked and to eject the lock head after unlocking.

[0032] In this embodiment, as shown in the figure, the first elastic element is a spring.

[0033] In this embodiment, as shown in the figure, the second elastic element is a spring.

[0034] In this embodiment, as shown in the figure, the third elastic element is a spring.

[0035] Brief description of working principle Initial Lock (Third Position): The combination lock is locked, and all elastic components are in a pre-compressed state.

[0036] Correct unlocking (first position): Enter the correct password, align the rotor positioning groove. Press the unlock lever, the positioning pin slides into the positioning groove, and the inclined surface at the end of the lever pushes the lock cylinder to compress the first elastic element 111, moving it laterally and releasing the restriction on the lock head. The lock head pops out under the action of the third elastic element 141, completing the unlocking process. During this process, the rotor does not move axially due to the cooperation between the positioning pin and the positioning groove, and the combination wheel is locked and cannot rotate.

[0037] Entering the coding state (second position): Keep the password correct and continue to press the unlock lever firmly. The pressing head 312 overcomes the force of the second elastic element 313, pushing the entire rotor 32 axially until the limiting block 15 engages with the rotor limiting groove 325. At this time, the rotor disengages from the corresponding stop (330 / 320 in the figure) on the password wheel 33, and the password wheel can rotate freely to change the password. After releasing the unlock lever, under the action of the second elastic element 313, the rotor resets and relocks the password wheel; the unlock lever is reset as a whole under the action of the first elastic element 111, etc.

[0038] Similarly, if it is a multi-level combination wheel, the principle is the same; you just need to set multiple positioning pins on the unlocking lever to cooperate with multiple combination wheels respectively.

[0039] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A combination lock with anti-misoperation function, comprising a housing (1), wherein a mechanical lock assembly and a combination lock assembly are mounted on the housing, the mechanical lock assembly comprising a cooperating lock cylinder (21) and a lock head (22), and the combination lock assembly comprising an unlocking rod (31), a rotor (32) sleeved on the unlocking rod, and a combination wheel (33) cooperating with the rotor; characterized in that, The unlocking lever includes Pushing the lock cylinder releases the lock cylinder from the lock head and locks the combination wheel to the first position, preventing it from rotating; The rotor is pushed to bring the code wheel to a second position in an encodeable state that allows it to rotate relative to the rotor; The third position when the combination lock is locked.

2. A combination lock with anti-misoperation function according to claim 1, characterized in that: The housing is provided with a sliding groove (11), the lock cylinder is slidably engaged with the sliding groove, and a first elastic element (111) is provided in the sliding groove. The first elastic element is used to apply force to lock the lock cylinder and the lock head.

3. A combination lock with anti-misoperation function according to claim 1, characterized in that: The unlocking lever includes a lever body (311), the tail end of which cooperates with the inclined surface of the lock cylinder to push the lock cylinder to move.

4. A combination lock with anti-misoperation function according to claim 3, characterized in that: The unlocking lever also includes a pressing head (312), and the lever body is provided with a positioning pin (3111). The rotor includes a first rotor (321) near the pressing head, and the first rotor is provided with a positioning groove (3211). When the unlocking lever is in the first position, the positioning pin is located in the positioning groove.

5. A combination lock with anti-misoperation function according to claim 4, characterized in that: The housing is also provided with a baffle (13), and the outer circumferential wall of the rod is fitted with a second elastic element (313). The rotor includes a second rotor (324) at the end along the direction of the rod. One end of the second elastic element presses on the second rotor, and the other end presses against the baffle.

6. A combination lock with anti-misoperation function according to claim 4, characterized in that: The rotor has a limiting groove (325) on its circumferential outer wall and a limiting block (15) on the inner wall of the housing. When the unlocking rod is in the second position, the limiting block is located in the limiting groove and the pressing head is in contact with the axial outer wall of the first rotor.

7. A combination lock with anti-misoperation function according to claim 1, characterized in that: The housing is provided with a recessed groove (14), and a third elastic element (141) is provided at the bottom of the recessed groove. The lock head extends into the recessed groove, and the third elastic element contacts the lock head.

8. A combination lock with anti-misoperation function according to claim 2, characterized in that: The first elastic element is a spring.

9. A combination lock with anti-misoperation function according to claim 5, characterized in that: The second elastic element is a spring.

10. A combination lock with anti-misoperation function according to claim 7, characterized in that: The third elastic element is a spring.

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