Character wheel coded lock

Abstract

The invention discloses a character wheel coded lock, and belongs to the technical field of coded locks. According to the character wheel coded lock, a pure mechanical structure is adopted, the functions of locking, unlocking and the like can be achieved only by rotating the lock shell, external and built-in energy sources are not needed, key unlocking is also not needed, and the key-free and power-free safe locking function is truly achieved. In the unlocking or locking state, the character wheel can freely rotate forwards and backwards, and when the code of the character wheel is incorrect after locking, unlocking cannot be achieved no matter how the character wheel and the lock shell are rotated or even knocked by external force. Besides, unlocking is needed, the unlocking rod must move rightwards when codes of the four character wheels are correct so that the one-way locking piece can be crossed, in the locking process, the unlocking rod can press down the one-way locking piece to enter the locking position, axial right movement is not needed, and the problem that locking cannot be achieved due to the fact that the unlocking rod cannot move rightwards after the character wheels are reset is solved.

Description

Technical Field

[0001] This application relates to the technical field of password locks, and particularly to a dial password lock. Background Art

[0002] Dial password locks combine the convenience of electronic locks and the stability of key mechanical locks, and are widely used in the market.

[0003] However, current dial password locks all require an additional key to unlock, resulting in a low degree of integration of dial password locks and the keys are easily lost. Summary of the Invention

[0004] Embodiments of this application provide a dial password lock, which can solve the problem of low integration degree of existing dial password locks. The technical solutions are as follows:

[0005] On the one hand, a dial password lock is provided, and the dial password lock includes:

[0006] A lock shell, a one-way locking member, and a dial password mechanism;

[0007] The lock shell has a locking tongue. The inner side wall of the lock shell has an arc-shaped sliding area extending circumferentially, and a chute distributed between the arc-shaped sliding area and the inner bottom wall of the lock shell. The extending direction of the chute is parallel to the axial direction of the lock shell; both ends of the arc-shaped sliding area are an unlocking position and a locking position respectively;

[0008] A part of the one-way locking member is elastic and located in the chute;

[0009] The dial password mechanism is located inside the lock shell and includes: a dial frame, an unlocking rod, an elastic member, at least two splines, and at least two dials respectively corresponding to and cooperating with the at least two splines. The dial frame is fixedly connected to the cabinet door. The unlocking rod is flush with the arc-shaped sliding area and is slidably connected to the dial frame. The first end of the unlocking rod is slidably connected to the arc-shaped sliding area. Both ends of the elastic member are in contact with the dial frame and the second end of the unlocking rod respectively; each spline is rotatably sleeved on the unlocking rod and has a key groove; the side of the unlocking rod has a locking protrusion cooperating with each key groove;

[0010] When the dial combination lock is in the locked state, the first end of the unlocking rod is located between the one-way locking member and the locking position, and each locking protrusion is distributed between the corresponding spline and the first end of the unlocking rod; when in the unlocked state, the first end of the unlocking rod is located between the one-way locking member and the unlocking position; when switching from the locked state to the unlocked state, the dial drives the spline to rotate to the target position, and the lock shell rotates to push the first end of the unlocking rod to move through the other part of the one-way locking member, so that each locking protrusion slides into the corresponding key groove; after the first end of the unlocking rod slides past the one-way locking member, the elastic member pushes the second end of the unlocking rod to move; when switching from the unlocked state to the locked state, the first end of the unlocking rod pushes the other part of the one-way locking member to move into the chute and can slide past the one-way locking member.

[0011] Optionally, one side of the one-way locking member facing the locking position has a first wedge surface parallel to the axial direction of the lock shell, one side of the one-way locking member facing the unlocking position has a second wedge surface intersecting with the axial direction of the lock shell, and the second wedge surface is inclined towards the first wedge surface.

[0012] Optionally, the one-way locking member includes: a locking block and a first elastic member. The first elastic member is located in the chute and is connected to the bottom of the chute at one end, and a part of the locking block extends into the chute and is connected to the other end of the first elastic member.

[0013] Optionally, the inner side wall of the lock shell further has a first chute located between the one-way locking member and the unlocking position, and a second chute symmetrically arranged with the first chute along the axial direction of the lock shell; the dial combination lock further includes: a cover plate, an unlocking separating member and a locking engaging member located in the lock shell. The extending direction of the cover plate is parallel to the arrangement direction of at least two splines and is slidably connected to the unlocking rod. The cover plate has accommodation through grooves corresponding to at least two dials one by one, and a part of each dial extends out from the corresponding accommodation through groove; a part of the unlocking separating member is elastic and is located in the first chute, and a part of the locking engaging member is elastic and is located in the second chute;

[0014] Among them, when switching from the locked state to the unlocked state, the unlocking separating member pushes the first end of the cover plate to move. At the same time, the cover plate drives the spline to move and separate from the corresponding dial along the axial direction of the unlocking rod. The second end of the cover plate pushes the other part of the locking engaging member to move into the second chute and can slide past the locking engaging member; when switching from the unlocked state to the locked state, the other part of the locking engaging member pushes the second end of the cover plate to move. At the same time, the cover plate drives the spline to move and engage with the corresponding dial, and the first end of the cover plate pushes the other part of the unlocking separating member to move into the first chute and can slide past the unlocking separating member.

[0015] Optionally, a dial pin is fixed on the side surface of each dial facing the end of the unlocking rod, and the dial pin is eccentrically arranged;

[0016] The wheel combination lock further comprises: a wheel reset mechanism, wherein the wheel reset mechanism is configured to cooperate with a pin in at least one wheel to rotate the wheel by a certain angle during the unlocking process of the wheel combination lock and after the wheel is disengaged from the spline, or to cooperate with a pin in at least one wheel to rotate the wheel by a certain angle during the locking process of the wheel combination lock and after the wheel is engaged with the spline.

[0017] Optionally, the character wheel reset mechanism comprises: a driving assembly, a reset push plate, a rotating shaft, a second elastic member, at least two reset connecting rods and at least two reset pendulum members located in the lock housing; a portion of the driving assembly is arranged along the first direction with the reset push plate and has a first clamping portion on the side facing the reset push plate, and a second clamping portion matching the first clamping portion on the side facing the driving assembly; a portion of the character wheel frame is located between the reset push plate and the bottom wall of the lock housing, and two ends of the second elastic member are in contact with the reset push plate and a portion of the character wheel frame respectively; the rotating shaft is located between the unlocking rod and the inner bottom wall of the lock housing and is arranged parallel to the unlocking rod along the second direction, and two ends of the rotating shaft are fixed to the character wheel frame; one end of the reset connecting rod matches with the reset push plate, and the other end is hinged with one end of the reset pendulum member, and the other end of the reset pendulum member has two swing rods arranged oppositely, the detent pin is located between the two swing rods, and each of the swing rods has a avoidance groove matching the unlocking rod clearance on the side facing the detent pin; the second direction is parallel to the axial direction of the lock housing and perpendicular to the first direction;

[0018] Among them, when the character wheel rotates to the password position or changes the password position, when the character wheel is rotated, the cooperation between the pin of the character wheel and the rocker arm drives the reset pendulum to rotate around the rotating shaft, so as to drive the reset push plate to descend in the second direction through the reset connecting rod, thereby compressing the second elastic member; when the lock shell rotates until the first end of the unlocking rod slides over the one-way locking member or the character wheel is engaged with the spline during the locking process, the driving component drives the first clamping part to separate from the second clamping part, and the second elastic member drives the reset push plate to rise in the second direction, so as to drive the reset pendulum to rotate through the reset connecting rod, and the reset pendulum resets the character wheel by toggling the pin through the rocker arm.

[0019] Optionally, the drive assembly includes: a drive member, a transition drive member, a check plate and a third elastic member, the drive member is fixed on the inner bottom wall of the lock shell, the transition drive member is slidably connected to the character wheel frame, the check plate is in contact with the transition drive member and is arranged along the first direction; the third elastic member is located on the side of the check plate away from the transition drive member, and its two ends are respectively in contact with the check plate and the character wheel frame; the check plate has the first clamping portion, and the reset push plate has the second clamping portion.

[0020] Optionally, the reset link includes a slider and a transition link. The slider is slidably connected to the wheel frame and is disposed opposite to the reset push plate in the second direction. Two ends of the transition link are respectively hinged to the slider and one end of the reset pendulum.

[0021] Wherein, the slider moves in the second direction driven by the reset push plate or the transition link.

[0022] Optionally, the first engaging portion includes a plurality of first serrated protrusions arranged in an array in the second direction, and the second engaging portion includes a plurality of second serrated protrusions matching the plurality of first serrated protrusions.

[0023] Wherein, when the reset push plate descends in the second direction, the second serrated protrusion is slidably connected to the first serrated protrusion; after the second serrated protrusion is engaged with the first serrated protrusion, it is used to limit the reset push plate from rising in the second direction.

[0024] Optionally, the transition driving member has a first arc convex surface and a second arc convex surface symmetrically arranged in the first direction; the driving member has an arc convex surface cooperating with the first arc convex surface and the second arc convex surface.

[0025] The beneficial effects brought by the technical solution provided by the embodiment of the present application at least include:

[0026] As a wheel combination lock, the wheel combination lock adopts a pure mechanical structure. Only by rotating the lock shell can functions such as locking and unlocking be realized. There is no need for external or internal energy, nor for a key to unlock, truly realizing the safe locking function without a key and without power. In the locked or unlocked state, the wheels can rotate freely in both forward and reverse directions. When the wheel combination is incorrect after locking, no matter how the wheels and the lock shell are rotated, or even if they are struck by an external force, unlocking cannot be achieved. In addition, to unlock, the unlocking rod must move to the right when the four-wheel combinations are correct to cross the one-way locking member. During the locking process, the unlocking rod can press down the one-way locking member to enter the locking position without moving axially to the right, avoiding the problem of being unable to lock due to the unlocking rod being unable to move to the right after the wheels are reset. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic diagram of a wheel combination lock provided by an embodiment of the present application in a locked state;

[0029] Figure 2 It is a schematic diagram of a wheel cipher lock provided by an embodiment of the present application in an unlocked state;

[0030] Figure 3 It is an exploded schematic diagram of a wheel cipher lock;

[0031] Figure 4 It is an assembly schematic diagram of a lock case and a one-way locking member provided by an embodiment of the present application;

[0032] Figure 5 It is an assembly schematic diagram of an unlocking lever, a wheel and a spline;

[0033] Figure 6 It is a structural schematic diagram of a one-way locking member provided by an embodiment of the present application;

[0034] Figure 7 It is a partial structural schematic diagram of a wheel cipher lock provided by an embodiment of the present application;

[0035] Figure 8 It is a partial structural schematic diagram of another wheel cipher lock provided by an embodiment of the present application;

[0036] Figure 9 It is a partial structural schematic diagram of yet another wheel cipher lock provided by an embodiment of the present application;

[0037] Figure 10 It is a structural schematic diagram of an unlocking separating member provided by an embodiment of the present application;

[0038] Figure 11 It is a structural schematic diagram of a locking engaging member provided by an embodiment of the present application;

[0039] Figure 12 It is an assembly schematic diagram of a wheel reset mechanism and a wheel provided by an embodiment of the present application;

[0040] Figure 13 It is a partial structural schematic diagram of a wheel reset mechanism;

[0041] Figure 14 It is an installation schematic diagram of a second elastic member and a wheel holder;

[0042] Figure 15 It is an assembly schematic diagram of a driving component and a lock case provided by an embodiment of the present application;

[0043] Figure 16 It is a side view of a partial structure of a wheel cipher lock provided by an embodiment of the present application;

[0044] Figure 17 It is a schematic diagram of the effect when the lock case is locked provided by an embodiment of the present application;

[0045] Figure 18 is a schematic structural diagram of two clamping parts provided in an embodiment of the present application;

[0046] Figure 19 It is a structural schematic diagram of a wheel combination lock provided in an embodiment of the present application.

[0047] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0051] Please refer to Figures 1-5 , Figure 1 is a schematic diagram of a wheel combination lock provided by an embodiment of the present application in a locked state, Figure 2 is a schematic diagram of a wheel combination lock in an unlocked state provided by an embodiment of the present application, Figure 3 This is an explosion diagram of a wheel combination lock. Figure 4 is a schematic diagram of an assembly of a lock housing and a one-way locking member provided in an embodiment of the present application, Figure 5 The figure is a schematic diagram of the assembly of the unlocking rod, the wheel and the spline. The wheel combination lock 00 is usually installed on a cabinet door, and the cabinet door is closed by limiting and staggering the lock tongue in the wheel combination lock 00 and the cabinet body. The wheel combination lock 00 may include: a lock housing 10, a one-way locking member 20 and a wheel combination mechanism 30.

[0052] The bottom of the lock housing 10 in the wheel combination lock 00 may have a lock tongue 11. The inner side wall of the lock housing 10 may have a circumferentially extending arc-shaped sliding area H, and a sliding groove 12 distributed between the arc-shaped sliding area H and the inner bottom wall of the lock housing 10. The extending direction of the sliding groove 12 may be parallel to the axial direction of the lock housing 10. Here, the two ends of the arc-shaped sliding area H on the inner side wall of the lock housing 10 may be an unlocking position W1 and a locking position W2 respectively. By way of example, the lock housing 10 may have a cavity Q1 and an opening a1 communicating with the cavity. The one-way locking member 20 and the wheel combination mechanism 30 may both be installed into the cavity Q1 of the lock housing 10 through the opening a1.

[0053] A part of the one-way locking member 20 in the wheel combination lock 00 may be elastic and located in the sliding groove 12. Here, the elastic end of the one-way locking member 20 may contact the bottom wall of the sliding groove 12.

[0054] The wheel combination mechanism 30 in the wheel combination lock 00 may be located in the lock housing 10. The wheel combination mechanism 30 may include: a wheel holder 31, an unlocking rod 32, an elastic member 33, at least two splines 34, and at least two wheels 35 that are in one-to-one correspondence and cooperation with the at least two splines 34. The wheel holder 31 may be fixedly connected to the cabinet door. The unlocking rod 32 is flush with the arc-shaped sliding area H and may be slidably connected to the wheel holder 31. The first end portion D1 of the unlocking rod 32 may be slidably connected to the arc-shaped sliding area H. The two ends of the elastic member 33 may respectively contact the wheel holder 31 and the second end portion D2 of the unlocking rod 32. Each spline 34 may be rotatably sleeved on the unlocking rod 32 and may have a key groove b2. The side surface of the unlocking rod 32 may have a locking protrusion b3 that cooperates with the key groove b2 in each spline 34. In addition, the lock housing 10 may have an arc-shaped sliding groove b1 distributed in the arc-shaped sliding area H. The first end portion D1 of the unlocking rod 32 may extend into the arc-shaped sliding groove b1, and the arc-shaped sliding groove b1 may provide a guiding and limiting effect on the sliding of the first end portion D1 of the unlocking rod 32.

[0055] By way of example, the wheel holder 31 may have a groove corresponding to the second end portion D2 of the unlocking rod 32. The elastic member 33 may be installed in the groove. The two ends of the elastic member 33 may respectively contact the bottom of the groove and the second end portion D2 of the unlocking rod 32. The number of wheels 35 may be two, three, four, etc. The embodiments of the present application do not make specific limitations on this.

[0056] Among them, when the wheel combination lock 00 is in the locked state, the first end D1 of the unlocking rod 32 can be located between the one-way locking member 20 and the locked position W2, and each locking protrusion b3 can be distributed between the corresponding spline 34 and the first end D1 of the unlocking rod 32. When it is in the unlocked state, the first end D1 of the unlocking rod 32 can be located between the one-way locking member 20 and the unlocked position W1. When the wheel combination lock 00 switches from the locked state to the unlocked state, the wheel 35 can drive the spline 34 to rotate to the target position (i.e., the correct password position), and the lock housing 10 rotates through another part of the one-way locking member 20 to push the first end D1 of the unlocking rod 32 to move along the axial direction of the unlocking rod 32, so that each locking protrusion b3 slides into the corresponding keyway b2. The elastic member 33 pushes the second end D2 of the unlocking rod 32 to move after the first end D1 of the unlocking rod 32 slides over the one-way locking member 20. When the wheel combination lock 00 switches from the unlocked state to the locked state, the first end D1 of the unlocking rod 32 pushes the other part of the one-way locking member 20 to move into the sliding groove 12 and can slide through the one-way locking member 20 .

[0057] For example, when the wheel combination lock 00 switches from the locking process to the unlocking process, the user turns and rotates each wheel 35 so that the wheel 35 drives the corresponding spline 34 to rotate a certain angle until the keyway b2 in the spline 34 is aligned with the locking protrusion b3 on the unlocking rod 32 and the keyway b2; the lock shell 10 is rotated clockwise, and the one-way locking member 20 contacts the first end D1 of the unlocking rod 32 as the lock shell 10 rotates a certain angle at the same time, and the lock shell 10 is continued to rotate. The unlocking rod 32 is pushed to move by the one-way locking member 20 so that the locking protrusion b3 on the unlocking rod 32 slides into the keyway b2; after the first end D1 of the unlocking rod 32 slides over the one-way locking member 20, the unlocking rod 32 moves in the opposite direction under the action of the elastic member 33 until the locking protrusion b3 exits the keyway b2; the lock shell 10 is continued to be rotated until the first end D1 of the unlocking rod 32 is to the unlocking position W1, and the lock tongue 11 of the lock shell 10 is offset from the cabinet wall to achieve unlocking. When the wheel combination lock 00 switches from the unlocking process to the locking process, the lock housing 10 is rotated counterclockwise, and the one-way locking member 20 is rotated by a certain angle along with the lock housing 10 to contact the first end D1 of the unlocking rod 32. Since a part of the one-way locking member 20 is elastic, it is elastically deformed under the squeezing of the first end D1 of the unlocking rod 32, so that the other part of the one-way locking member 20 slides into the slide groove 12, thereby ensuring that the first end D1 of the unlocking rod 32 can slide over the one-way locking member 20 to achieve locking.

[0058] In this way, as a kind of word wheel combination lock, the word wheel combination lock 00 adopts a pure mechanical structure. Only by rotating the lock shell 10 can functions such as locking and unlocking be realized. There is no need for external or built-in energy, nor for a key to unlock, truly realizing the safe locking function without a key and without power. In the unlocking or locking state, the word wheel can rotate freely in both forward and reverse directions. After locking, when the word wheel password is incorrect, no matter how the word wheel 35 and the lock shell 10 are rotated, or even when struck by an external force, unlocking cannot be achieved. In addition, to unlock, the unlocking lever must move to the right when the four-word wheel passwords are correct, so as to cross the one-way locking member 20. During the locking process, the unlocking lever 32 can press down the one-way locking member 20 to enter the locking position without moving axially to the right, avoiding the problem of being unable to lock due to the unlocking lever 32 being unable to move to the right after the word wheel is reset. It should be noted that the structure in which the word wheel 35 can be reset will be further described later.

[0059] Exemplarily, such as Figure 3 As shown, the word wheel combination lock 00 may further include: a mounting base 40 for being fixedly connected to the cabinet door. The mounting base 40 can be sleeved on the lock tongue, and the lock tongue can rotate relative to the mounting base 40. The word wheel holder 31 can be fixed on the mounting base 40. For example, the mounting base 40 can be fixedly connected to the word wheel holder 31 by screws 41 passing through the lock shell 10.

[0060] Optionally, please refer to Figure 4 and Figure 6 , Figure 6 FIG. is a schematic structural diagram of a one-way locking member provided by an embodiment of the present application. One side of the one-way locking member 20 facing the locking position W2 may have a first wedge surface 21 parallel to the axial direction of the lock shell 10. One side of the one-way locking member 20 facing the unlocking position W1 may have a second wedge surface 22 intersecting the axial direction of the lock shell 10, and the second wedge surface 22 may be inclined towards the first wedge surface 21. In this case, during the process of switching from locking to unlocking, when the lock shell 10 is rotated clockwise, the first end D1 of the unlocking lever 32 contacts the first wedge surface 21 of the one-way locking member 20 and is pushed to move to the right to unlock. It should be noted that only when the locking protrusion b3 on the unlocking lever 32 is completely aligned with the key groove b2 on the spline 34 can the unlocking lever 32 move to the right and the first end D1 of the unlocking lever 32 can slide past the one-way locking member 20. When switching from the unlocking state to the locking state, when the lock shell 10 is rotated counterclockwise, after the unlocking lever 32 contacts the second wedge surface 22 of the one-way locking member 20, the one-way locking member 20 is pressed down, so that the unlocking lever 32 can return to the locking position W2 to achieve locking without moving to the right.

[0061] In the embodiment of the present application, such as Figure 6As shown, the one-way locking member 20 may include a locking block 23 and a first elastic member 24. The first elastic member 24 may be located in the sliding groove 12 and one end thereof may be connected to the bottom of the sliding groove 12. A part of the locking block 23 may extend into the sliding groove 12 and be connected to the other end of the first elastic member 24. In this way, when the first end portion D1 of the unlocking lever 32 presses the locking block 23 and moves it into the sliding groove 12, the first elastic member 24 can be compressed. After the first end portion D1 of the unlocking lever 32 slides past the locking block 23, the locking block 23 moves to the initial position under the action of the first elastic member 24. Exemplarily, the first elastic member 24 may be a spring or a spring piece, etc.

[0062] Optionally, please refer to Figure 7 、 Figure 8 and Figure 9 , Figure 7 FIG. is a partial structural schematic diagram of a wheel combination lock provided by an embodiment of the present application, Figure 8 FIG. is a partial structural schematic diagram of another wheel combination lock provided by an embodiment of the present application, Figure 9 FIG. is a partial structural schematic diagram of yet another wheel combination lock provided by an embodiment of the present application. The inner side wall of the lock housing 10 may further have a first sliding groove 13 located between the one-way locking member 20 and the unlocking position W1, and a second sliding groove 14 symmetrically arranged with the first sliding groove 13 along the axial direction of the lock housing. The wheel combination lock may further include: a cover plate 50, an unlocking separating member 60, and a locking engaging member 70 located in the lock housing 10. The extending direction of the cover plate 50 may be parallel to the arrangement direction of at least two splines 34 and slidably connected to the unlocking lever 32. The cover plate 50 may have receiving through grooves 51 corresponding to at least two wheels 35 one by one, and a part of each wheel 35 may extend out of the corresponding receiving through groove 51. A part of the unlocking separating member 60 is elastic and may be located in the first sliding groove 13, and a part of the locking engaging member 70 is elastic and may be located in the second sliding groove 14. Wherein, when the wheel combination lock 00 switches from the locked state to the unlocked state, the unlocking separating member 60 pushes the first end portion D3 of the cover plate 50 to move, and at the same time, the cover plate 50 drives the spline 34 to move and separate from the corresponding wheel 35 along the axial direction of the unlocking lever 32. The second end portion D4 of the cover plate 50 pushes the other part of the locking engaging member 70 to move into the second sliding groove 14 and can slide past the locking engaging member 70. When the wheel combination lock 00 switches from the unlocked state to the locked state, the other part of the locking engaging member 70 pushes the second end portion D4 of the cover plate 50 to move, and at the same time, the cover plate 50 drives the spline 34 to move and engage with the corresponding wheel 35, and the first end portion D3 of the cover plate 50 pushes the other part of the unlocking separating member 60 to move into the first sliding groove 14 and can slide past the unlocking separating member 60.

[0063] Exemplarily, when each word wheel password is correct, rotate the lock housing 10 clockwise. After the unlocking lever 32 passes over the one-way locking member 20, continue to rotate the lock housing 10. One end of the cover plate 50 begins to contact the unlocking separating member 60. After the cover plate 50 is squeezed, it is forced to move to the right, pushing each spline 34 to move and separate from the corresponding word wheel 35. At the same time, the second end portion of the cover plate 50 pushes the other part of the locking engaging member 70 into the second chute 14 and can slide past the locking engaging member 70, so that the locking engaging member 70 does not interfere with the movement of the cover plate 50 when unlocking. At this time, in the unlocked state, each word wheel 35 and the corresponding spline 34 are in a separated state, and a new password can be freely set to ensure the security performance of the word wheel password lock 00. It should be noted that at this time, the keyway b2 of each spline 34 is aligned with the locking protrusion b3 on the unlocking lever 32. After setting a new password and the word wheel 35 and the spline 34 are engaged again, the number corresponding to the word wheel 35 can be the newly set password at this time.

[0064] When locking, rotate the lock housing 10 counterclockwise. The second end portion D4 of the cover plate 50 contacts the other part of the locking engaging member 70. Continue to rotate the lock housing 10. The other part of the locking engaging member 70 pushes the cover plate 50 to move to the left, pushing each spline 34 to move and engage with the corresponding word wheel 35. At the same time, the first end portion D3 of the cover plate 50 pushes the other part of the unlocking separating member 60 into the first chute 13 and can slide past the unlocking separating member 60, so that the unlocking separating member 60 does not interfere with the movement of the cover plate 50.

[0065] In this application, please refer to Figure 10 and Figure 11 , Figure 10 is a schematic structural diagram of an unlocking separating member provided by an embodiment of this application, Figure 11It is a schematic structural diagram of a locking engagement member provided by an embodiment of the present application. One side of the unlocking separating member 60 facing the locking position W2 has a third wedge surface 61 parallel to the axial direction of the lock housing 10. One side of the unlocking separating member 60 facing the unlocking position W1 may have a fourth wedge surface 62 intersecting the axial direction of the lock housing 10, and the fourth wedge surface 62 may be inclined towards the third wedge surface 61. One side of the locking engagement member 70 facing the locking position W2 may have a fifth wedge surface 71 parallel to the axial direction of the lock housing 10. One side of the locking engagement member 70 facing the unlocking position W1 may have a sixth wedge surface 72 intersecting the axial direction of the lock housing 10, and the sixth wedge surface 72 may be inclined towards the fifth wedge surface 71. In this way, when unlocking, after the lock housing 10 rotates clockwise from the locking position W2 (for example, the 9 o'clock direction) by a certain angle, the first end portion D3 of the cover plate 50 contacts the third wedge surface 61 of the unlocking separating member 60. After being squeezed, the cover plate 50 moves to the right, and then pushes the spline 34 to move to the right to separate from the corresponding character wheel 35. At the same time, the second end portion D4 of the cover plate 50 contacts the locking engagement member 70, and presses the locking engagement member 70 downward into the second chute 14 through the sixth wedge surface 72 of the locking engagement member 70 to avoid jamming. When locking, after the lock housing 10 rotates counterclockwise from the unlocking position W1 (for example, the 12 o'clock direction) by a certain angle, the second end portion D4 of the cover plate 50 contacts the fifth wedge surface 71 of the locking engagement member 70. After being squeezed, the cover plate 50 moves to the left, and then pushes the spline 34 to move to the left, so that the spline 34 meshes with the corresponding character wheel 35. At the same time, the first end portion D3 of the cover plate 50 contacts the unlocking separating member 60, and presses the unlocking separating member 60 downward through the fourth wedge surface 62 of the unlocking separating member 60 to avoid jamming. It should be noted that both the unlocking separating member 60 and the locking engagement member 70 realize the function of pushing the cover plate 50 to move axially in a single direction. When moving in the opposite direction, they will be pressed downward to avoid movement interference.

[0066] For example Figure 10 and Figure 11 As shown, the unlocking separating member 60 may include: a first auxiliary elastic member 63 and an unlocking separating slider 64. The first auxiliary elastic member 63 may be located in the first chute 13 and one end thereof is connected to the bottom of the first chute 13. A part of the unlocking separating slider 64 extends into the first chute 13 and is connected to the other end of the first auxiliary elastic member 63. The locking engagement member 70 may include: a locking engagement slider 73 and a second auxiliary elastic member 74. The second auxiliary elastic member 74 may be located in the second chute 14 and one end thereof is connected to the bottom of the second chute 14. A part of the locking engagement slider 73 extends into the second chute 14 and is connected to the other end of the second auxiliary elastic member 74.

[0067] Optionally, as Figures 7-9As shown in the figure, the wheel combination lock may further include: an unlocking limit plate 80 fixed to the inner side wall of the lock housing 10 and located between the unlocking separating member 60 and the unlocking position W1, and the unlocking limit plate 80 may be flush with the third wedge surface 61 in the unlocking separating member 60. In this way, after the first end portion D3 of the cover plate 50 is pushed to the right by the third wedge surface 61 in the unlocking separating member 60, it can continue to rotate and abut against the first end portion D3 of the cover plate 50 through the arc-shaped side surface of the unlocking limit plate 80, ensuring that the cover plate 50 does not shift leftward abnormally. The wheel combination lock may further include: a locking limit plate 90 fixed to the inner side wall of the lock housing 10 and located between the locking engaging member 70 and the unlocking position W1, and the locking limit plate 90 may be flush with the fifth wedge surface 71 of the locking engaging member 70. In this way, after the second end portion D4 of the cover plate 50 is pushed to the left by the fifth wedge surface 71 in the locking engaging member 70, it can continue to rotate and abut against the second end portion D4 of the cover plate 50 through the arc-shaped side surface of the locking limit plate 90, ensuring that the cover plate 50 does not shift rightward abnormally.

[0068] In addition, it should be noted that the spline 34 and the corresponding wheel 35 are separated along the axial direction of the unlocking rod 32, that is, the spline 34 is disengaged from the wheel 35. The spline 34 may include: a first portion 341 and a second portion 342 that are connected to each other and arranged coaxially. The first portion 341 has a plurality of engaging protrusions that are meshed and connected with the wheel 35, and the outer side surface of the second portion 342 is flush with the roots of the plurality of engaging protrusions. In this way, after the spline 34 is separated from the wheel 35, the wheel 35 can be sleeved on the second portion 342 of the spline 34. When the wheel 35 is meshed with the spline 34, the spline 34 moves, so that the plurality of engaging protrusions on the first portion 341 of the spline 34 can be connected with the wheel 35.

[0069] In the embodiment of the present application, please refer to Figure 12 , Figure 12 which is a schematic assembly diagram of a wheel reset mechanism and a wheel provided by the embodiment of the present application, Figure 13 which is a partial structural schematic diagram of the wheel reset mechanism, Figure 14It is a schematic diagram of the installation of the second elastic member and the wheel carrier. A dial pin 351 is fixed to the side of each wheel 35 facing the end of the unlocking rod 32 (for example, the second end of the unlocking rod). The dial pin 351 is eccentrically arranged, that is, there is a certain distance between the axis of the dial pin 351 and the rotation axis of the unlocking rod 32. The wheel combination lock 00 may further include: a wheel reset mechanism 100, which may be configured to: during the unlocking process of the wheel combination lock 00 and after the wheel 35 is disengaged from the spline 34, cooperate with the dial pin 351 in at least one wheel 35 to rotate this wheel 35 by a certain angle, or, during the locking process of the wheel combination lock 00 and after the wheel 35 is engaged with the corresponding spline 34, cooperate with the dial pin 351 in at least one wheel 35 to rotate the wheel 35 by a certain angle. In this way, during the manual mechanical unlocking or locking process of the wheel combination lock 00, the wheel reset mechanism 100 pushes the dial pin 351 to drive the password wheel 35 to rotate, enabling the reset of at least one password wheel. After unlocking or locking, there is no need to manually scramble the password again, eliminating the problem of password leakage caused by forgetting. It should be noted that the wheel reset mechanism 100 generally realizes the reset of each password wheel 35 to improve the security performance. Before locking after the unlocking reset is completed, the wheel 35 can be manually rotated to set a new password.

[0070] In the present application, as Figures 12-14 shown, the wheel reset mechanism 100 may include: a driving component 101, a reset push plate 102, a rotating shaft 103, a second elastic member 104, at least two reset linkages 105 and at least two reset pendulums 106. Here, at least two reset linkages 105 and at least two reset pendulums 106 correspond one by one and correspond to at least two wheels 35 one by one. A part of the driving component 101 and the reset push plate 102 are arranged along the first direction f1 and a first clamping portion A1 may be provided on the side facing the reset push plate 102. A second clamping portion A2 that cooperates with the first clamping portion A1 is provided on the side of the reset push plate 102 facing the driving component 101. A part of the wheel carrier 31 is located between the reset push plate 102 and the bottom wall of the lock housing 10. The two ends of the second elastic member 104 may respectively contact the reset push plate 102 and a part of the wheel carrier 31. The rotating shaft 103 may be located between the unlocking rod 32 and the bottom wall of the lock housing 10 and be arranged parallel to the unlocking rod 32 along the second direction f2. The two ends of the rotating shaft 103 may be fixed on the wheel carrier 31. One end of the reset linkage 105 may cooperate with the reset push plate 102, and the other end of the reset linkage 105 may be hinged to one end of the reset pendulum 106. The other end of the reset pendulum 106 may have two relatively arranged swing rods 106a. The dial pin 351 may be located between the two swing rods 106a. A relief groove C that is clearance-fitted with the unlocking rod 32 may be provided on the side of each swing rod 106a facing the dial pin 351. The second direction f2 may be parallel to the axis of the lock housing 10 and be perpendicular to the first direction f1.

[0071] When the character wheel 35 rotates to the password position or changes the password position, the reset pendulum 106 is driven to rotate around the rotating shaft 103 through the cooperation of the pin 351 of the character wheel 35 and the swing rod 106a, so as to push the reset push plate 102 to descend along the second direction f2 through the reset link 105, thereby compressing the second elastic member 104. When the lock housing 10 rotates until the first end D1 of the unlocking rod 32 slides over the one-way locking member 20 or the character wheel 35 is engaged with the spline 34 during the locking process, the driving assembly 101 drives the first clamping portion A1 to separate from the second clamping portion A2 of the reset push plate 102, and the second elastic member 104 drives the reset push plate 102 to rise along the second direction f2, so as to drive the reset pendulum 106 to rotate through the reset link 105, and the reset pendulum 106 resets the character wheel 35 by toggling the pin 351 through the swing rod 106a.

[0072] For example, when unlocking, when the character wheel 35 is turned to the password position, the eccentrically arranged pin 351 on the character wheel 35 cooperates with the rocker 106a in the reset rocker 106 to drive the reset rocker 106 to rotate around the rotating shaft 103, so as to drive the reset link 105 to swing and push the reset push plate 102 to descend along the second direction f2 to compress the second elastic member 104. At this time, the reset push plate 102 is engaged with the driving assembly 101 through two engaging parts. The lock housing 10 is rotated clockwise, and after the cover plate 50 drives each spline 34 to disengage from the character wheel 35, the driving assembly 101 drives the first engaging part A1 to separate from the second engaging part A2, and the reset push plate 102 rises along the second direction f2 under the action of the second elastic member 104, so as to drive the reset rocker 106 to rotate through the reset link 105, and the reset rocker 106 drives the pin 351 through the rocker 106a to realize the rotation and reset of the character wheel 35. In the process of setting a new password, the eccentrically arranged pin 351 on the character wheel 35 cooperates with the rocker 106a in the reset rocker 106 to drive the reset rocker 106 to rotate around the rotation axis, so as to drive the reset link 105 to swing and push the reset push plate 102 to descend along the second direction f2 to compress the second elastic member 104. At this time, the reset push plate 102 is engaged with the driving assembly 101 through two engaging parts. When the lock is closed, the lock housing 10 is rotated counterclockwise, and after the cover plate 50 pushes each spline 34 to engage with the character wheel 35, the driving assembly 101 drives the first engaging part A1 to separate from the second engaging part A2, and the reset push plate 102 rises along the second direction f2 under the action of the second elastic member 104, so as to drive the reset rocker 106 to rotate through the reset link 105. The reset rocker 106 drives the pin 351 through the rocker 106a to realize the rotation and reset of the character wheel 35, so as to prevent the leakage of the set new password.

[0073] In this application, please refer to Figures 11-15 , Figure 15It is a schematic diagram of the assembly of a drive assembly and a lock housing provided by an embodiment of the present application. The drive assembly 101 may include: a drive member 101a, a transition drive member 101b, a check plate 101c and a third elastic member 101d. The drive member 101a is fixed on the inner bottom wall of the lock housing 10. The transition drive member 101b is slidably connected to the wheel frame 31 and slidably cooperates with the drive member 101a. The check plate 101c contacts the transition drive member 101b and is arranged along the first direction f1. The third elastic member 101d is located on the side of the check plate 101c away from the transition drive member 101b, and the two ends can contact the check plate 101c and the wheel frame 31 respectively. The check plate 101c can have a first clamping portion A1.

[0074] In this way, Figure 14 , Figure 15 and Figure 16 As shown, Figure 16 1 is a side view of a partial structure of a wheel combination lock provided by an embodiment of the present application. Figure 16 For example, in the process of rotating any character wheel clockwise to the password position, the pin 351 drives the left rocker arm 106a to rotate counterclockwise under the drive of the character wheel, and then drives the slider 105a to descend along the second direction f2 through the transition link 105b, driving the reset push plate 102 to descend and compress the second elastic member 104, and at the same time, the second clamping portion A2 on the reset push plate 102 rubs the first clamping portion A1 on the check plate 101c and moves downward in one direction, so that the reset push plate 102 cannot rebound upward in the second direction f2. When the lock housing 10 is unlocked by rotating clockwise, after the cover plate 50 drives each spline 34 to disengage from the letter wheel 35, the lock housing 10 continues to rotate to drive the driving member 101a to contact the transition driving member 101b and further drive the transition driving member 101b to move along the first direction f1 to push the check plate 101c to overcome the action of the third elastic member 101d to move, so that the first clamping part A1 is separated from the second clamping part A2, and the reset push plate 102 rises along the second direction f2 under the action of the second elastic member 104 to drive the reset pendulum 106 to rotate through the reset connecting rod 105, and the reset pendulum 106 drives the pin 351 through the rocker rod 106a to realize the rotation and reset of the letter wheel 35. It should be noted that after the character wheel 35 is reset, the check plate 101c moves to its original position under the action of the third elastic member 101d. In the process of setting a new password, the reset push plate 102 descends along the second direction f2, and the second clamping portion A2 can slide relative to the first clamping portion A1. After the reset push plate 102 descends to the lowest point, the second clamping portion A2 is clamped with the first clamping portion A1.

[0075] like Figure 17 As shown, Figure 171 is a schematic diagram of the effect of a lock case being locked provided by an embodiment of the present application. When the lock case 10 is locked by rotating counterclockwise, after the cover plate 50 drives each spline 34 to engage with the character wheel 35, the lock case 10 continues to rotate to drive the driving member 101a to contact the transition driving member 101b and further drives the transition driving member 101b to move along the first direction f1 to push the check plate 101c to overcome the action of the third elastic member 101d to move, so that the first clamping portion A1 is separated from the second clamping portion A2, and the reset push plate 102 rises along the second direction f2 under the action of the second elastic member 104, so as to drive the reset pendulum 106 to rotate through the reset connecting rod 105, and the reset pendulum 106 drives the pin 351 through the rocker 106a to realize the rotation and reset of the character wheel 35.

[0076] It should be noted that the digital password of each character wheel after the character wheel reset mechanism resets the character wheel can be determined according to the relative position of the pin in the character wheel and the character wheel reset mechanism. Figure 16 In the figure, after the character wheel resetting mechanism resets the character wheel, the numbers on the four character wheels are displayed as "0000".

[0077] For example, the second elastic member 104 and the third elastic member 101d can both be springs or springs, and the wheel frame 31 can have a mounting column Z1 for mounting the third elastic member 101d to ensure that the third elastic member 101d does not shift during the deformation process. The wheel frame 31 can also have a mounting column Z2 for mounting the second elastic member 104 to ensure that the second elastic member 104 does not shift during the deformation process.

[0078] For examples, please refer to Figure 12 and Figure 18 , Figure 18 : is a schematic diagram of the structure of two clamping parts provided in an embodiment of the present application. The first clamping part A1 may include: a plurality of first serrated protrusions A11 arranged in an array along the second direction f2, and the second clamping part A2 may include: a plurality of second serrated protrusions A21 matching the plurality of first serrated protrusions A11. When the reset push plate 102 descends along the second direction f2, the second serrated protrusion A21 is slidably connected with the first serrated protrusion A11; after the second serrated protrusion A21 is clamped with the first serrated protrusion A11, it is used to limit the reset push plate 102 to rise along the second direction f2. For example, the first serrated protrusion A11 may have a first sliding plane m1 extending obliquely downward, and a first clamping plane m2 forming an acute angle with the first sliding plane m1; the second serrated protrusion A21 may have a second sliding plane m3 extending obliquely upward, and a second clamping plane m4 forming an acute angle with the second sliding plane m3; wherein the second sliding plane m3 is slidably matched with the first sliding plane m1, and the second clamping plane m4 is clamping matched with the first clamping plane m2.

[0079] Here, ifFigure 15 As shown, the transition driving member 101b may have a first arc convex surface m5 and a second arc convex surface m6 symmetrically arranged along the first direction f1, and the driving member 101a may have an arc convex surface m7 that cooperates with the first arc convex surface m5 and the second arc convex surface m6 in the transition driving member 101b. In this way, when unlocking by clockwise rotation, after the lock housing 10 drives the driving member 101a to rotate until the arc convex surface m7 contacts the first arc convex surface m5, continue to rotate the lock housing 10 so that the driving member 101a drives the transition driving member 101b to move along the first direction f1 to push the check plate 101c. When the lock housing 10 drives the driving member 101a to rotate until the arc convex surface m7 is at the junction of the first arc convex surface m5 and the second arc convex surface m6, when continuing to rotate, the arc convex surface m7 contacts the second arc convex surface m6, and the check plate 101c returns to the initial position under the action of the third elastic member 101d. When locking by counterclockwise rotation, after the lock housing 10 drives the driving member 101a to rotate until the arc convex surface m7 contacts the second arc convex surface m6, continue to rotate the lock housing 10 so that the driving member 101a drives the transition driving member 101b to move along the first direction f1 to push the check plate 101c. When the lock housing 10 drives the driving member 101a to rotate until the arc convex surface m7 is at the junction of the first arc convex surface m5 and the second arc convex surface m6, when continuing to rotate, the arc convex surface m7 contacts the first arc convex surface m5, and the check plate 101c returns to the initial position under the action of the third elastic member 101d.

[0080] Exemplarily, the bottom of the transition driving member 101b may have a guiding groove (not shown in the figure) extending along the first direction f1, and the wheel carrier 31 may have a guiding portion, at least part of which may be located in the guiding groove and slidably connected to the guiding groove. In this way, through the cooperation of the guiding groove and the guiding portion, the movement of the transition driving member 101b can be guided and limited, ensuring the movement accuracy of the transition driving member 101b.

[0081] Optionally, as Figure 13 and Figure 16 shown, the reset link 105 in the wheel reset mechanism 100 may include: a slider 105a and a transition link 105b. The slider 105a may be slidably connected to the wheel carrier 31 and disposed opposite to the reset push plate 102 along the second direction f2. The two ends of the transition link 105b may be respectively hinged to the slider 105a and one end of the reset pendulum 106. Among them, the slider 105a moves along the second direction f2 driven by the reset push plate 102 or the transition link 105b. Exemplarily, the side surface of the wheel carrier 31 may have a guiding chute C1 extending along the second direction f2, and a part of the slider 105a may be located in the guiding chute C1 and slidably connected to the guiding chute C1.

[0082] In the embodiment of the present application, please refer to Figure 19 ,Figure 19 It is a schematic structural diagram of a word wheel combination lock provided by an embodiment of the present application. The word wheel combination lock may further include: an outer cover plate 110 installed at the opening of the lock housing 10. The lock housing 10 can rotate relative to the outer cover plate 110, and the outer cover plate can be fixedly connected to the installation base 40 by screws. Part of the multiple word wheels 35 protrudes from the outer cover plate 110 and is movably connected to the outer cover plate 110. Among them, the outer side surface of the outer cover plate 110 may have a first marking member B1 and a second marking member B2 corresponding to the unlocking position W1 and the locking position W2 respectively. Among them, the lock housing 10 may have positioning members B3 that cooperate with the first marking member B1 and the second marking member B2 respectively.

[0083] In summary, the embodiment of the present application provides a word wheel combination lock, which may include: a lock housing, a one-way locking member, and a word wheel password mechanism. As a word wheel combination lock, the combination lock adopts a pure mechanical structure. Only by rotating the lock housing can functions such as locking and unlocking be achieved. There is no need for external or internal energy, nor is there a need for a key to unlock, truly realizing the safe locking function without a key and without power. In the unlocking or locking state, the word wheels can rotate freely in both forward and reverse directions. After locking, when the word wheel password is incorrect, no matter how the word wheels and the lock housing are rotated, or even when struck by an external force, unlocking cannot be achieved. In addition, to unlock, the unlocking rod must move to the right when the four-word wheel passwords are correct to cross the one-way locking member. During the locking process, the unlocking rod can press down the one-way locking member into the locking position without the need to move axially to the right, avoiding the problem of being unable to lock due to the unlocking rod being unable to move to the right after the word wheels are reset. During the manual mechanical unlocking or locking process of the word wheel combination lock, the word wheel reset mechanism pushes the pin to drive the password word wheels to rotate, enabling at least one password word wheel to be reset. After unlocking or locking, there is no need to manually scramble the password again, eliminating the problem of password leakage caused by forgetting. It should be noted that the word wheel reset mechanism usually resets each password word wheel to improve safety performance. Before locking after the unlocking reset is completed, the word wheels can be manually rotated to set a new password.

[0084] The embodiment of the word wheel combination lock provided by the embodiment of the present invention and the embodiment of the usage method of the word wheel combination lock can be referred to each other, and the embodiment of the present invention will not be elaborated here.

[0085] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0086] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wheel combination lock, characterized in that: include: Lock housing, one-way locking element and word wheel password mechanism; The lock housing has a lock tongue, and the inner side wall of the lock housing has a circumferentially extending arc-shaped sliding area, and a sliding groove distributed between the arc-shaped sliding area and the inner bottom wall of the lock housing, and the extending direction of the sliding groove is parallel to the axial direction of the lock housing; the two ends of the arc-shaped sliding area are respectively an unlocking position and a locking position; A portion of the one-way locking member is elastic and is located in the slide groove; The wheel password mechanism is located in the lock housing, and includes: a wheel frame, an unlocking rod, an elastic member, at least two splines, and at least two wheels corresponding to the at least two splines. The wheel frame is fastened to the cabinet door, the unlocking rod is flush with the arc-shaped sliding area and is slidably connected to the wheel frame, the first end of the unlocking rod is slidably connected to the arc-shaped sliding area, and the two ends of the elastic member are respectively in contact with the wheel frame and the second end of the unlocking rod; each spline is rotatably sleeved on the unlocking rod and has a key slot; the side of the unlocking rod has a locking protrusion that matches each key slot; Among them, when the word wheel combination lock is in a locked state, the first end of the unlocking rod is located between the one-way locking piece and the locked position, and each locking protrusion is distributed between the corresponding spline and the first end of the unlocking rod; when it is in an unlocked state, the first end of the unlocking rod is located between the one-way locking piece and the unlocking position; when switching from the locked state to the unlocked state, the word wheel drives the spline to rotate to the target position, and the lock shell rotates through the other part of the one-way locking piece to push the first end of the unlocking rod to move, so that each locking protrusion slides into the corresponding keyway; the elastic member pushes the second end of the unlocking rod to move after the first end of the unlocking rod slides over the one-way locking piece; when switching from the unlocked state to the locked state, the first end of the unlocking rod pushes the other part of the one-way locking piece to move into the sliding groove and can slide over the one-way locking piece.

2. The wheel combination lock according to claim 1, characterized in that: The one-way locking member has a first wedge surface parallel to the axial direction of the lock housing on the side facing the closed position, and has a second wedge surface intersecting the axial direction of the lock housing on the side facing the unlocked position, and the second wedge surface is inclined toward the first wedge surface.

3. The wheel combination lock according to claim 2, characterized in that: The one-way locking member includes: a locking block and a first elastic member, wherein the first elastic member is located in the slide slot and one end of the first elastic member is connected to the bottom of the slide slot, and a portion of the locking block extends into the slide slot and is connected to the other end of the first elastic member.

4. The wheel combination lock according to any one of claims 1 to 3, characterized in that: The inner side wall of the lock shell also has a first slide groove located between the one-way locking member and the unlocking position, and a second slide groove symmetrically arranged along the axis of the lock shell with the first slide groove; the word wheel combination lock also includes: a cover plate, an unlocking separation member and a locking bite member located in the lock shell, the extension direction of the cover plate is parallel to the arrangement direction of at least two splines and is slidably connected to the unlocking rod, the cover plate has a accommodating through groove corresponding to at least two word wheels one by one, and a part of each word wheel extends from the corresponding accommodating through groove; a part of the unlocking separation member is elastic and located in the first slide groove, and a part of the locking bite member is elastic and located in the second slide groove; Among them, when switching from the locked state to the unlocked state, the unlocking separation piece pushes the first end of the cover plate to move, and at the same time, the cover plate drives the spline to move and separate from the corresponding character wheel along the axial direction of the unlocking rod, and the second end of the cover plate pushes the other part of the locking bite piece to move into the second sliding groove and can slide over the locking bite piece; when switching from the unlocked state to the locked state, the other part of the locking bite piece pushes the second end of the cover plate to move, and at the same time, the cover plate drives the spline to move and engage with the corresponding character wheel, and the first end of the cover plate pushes the other part of the unlocking separation piece to move into the first sliding groove and can slide over the unlocking separation piece.

5. The wheel combination lock according to claim 4, characterized in that: A detent pin is fixed on the side of each character wheel facing the end of the unlocking rod, and the detent pin is eccentrically arranged; The wheel combination lock further comprises: a wheel reset mechanism, wherein the wheel reset mechanism is configured to cooperate with a pin in at least one wheel to rotate the wheel by a certain angle during the unlocking process of the wheel combination lock and after the wheel is disengaged from the spline, or to cooperate with a pin in at least one wheel to rotate the wheel by a certain angle during the locking process of the wheel combination lock and after the wheel is engaged with the spline.

6. The wheel combination lock according to claim 5, characterized in that: The character wheel reset mechanism comprises: a driving assembly, a reset push plate, a rotating shaft, a second elastic member, at least two reset connecting rods and at least two reset pendulum members located in the lock housing; a portion of the driving assembly is arranged along the first direction with the reset push plate and has a first clamping portion on the side facing the reset push plate, and a second clamping portion matched with the first clamping portion on the side facing the driving assembly; a portion of the character wheel frame is located between the reset push plate and the bottom wall of the lock housing, and two ends of the second elastic member are respectively in contact with the reset push plate and a portion of the character wheel frame; the rotating shaft is located between the unlocking rod and the inner bottom wall of the lock housing and is arranged parallel to the unlocking rod along the second direction, and two ends of the rotating shaft are fixed to the character wheel frame; one end of the reset connecting rod is matched with the reset push plate, and the other end is hinged with one end of the reset pendulum member, and the other end of the reset pendulum member has two swing rods arranged oppositely, the detent pin is located between the two swing rods, and each of the swing rods has a avoidance groove matched with the unlocking rod clearance on the side facing the detent pin; the second direction is parallel to the axial direction of the lock housing and perpendicular to the first direction; Among them, when the character wheel rotates to the password position or changes the password position, when the character wheel is rotated, the cooperation between the pin of the character wheel and the rocker arm drives the reset pendulum to rotate around the rotating shaft, so as to push the reset push plate to descend in the second direction through the reset connecting rod, thereby compressing the second elastic member; during the unlocking process, the character wheel is disengaged from the spline or after the character wheel is engaged with the spline during the locking process, the driving component drives the first clamping part to separate from the second clamping part, and the second elastic member drives the reset push plate to rise in the second direction, so as to drive the reset pendulum to rotate through the reset connecting rod, and the reset pendulum resets the character wheel by toggling the pin through the rocker arm.

7. The wheel combination lock according to claim 6, characterized in that: The driving assembly includes: a driving member, a transition driving member, a check plate and a third elastic member, the driving member is fixed on the inner bottom wall of the lock shell, the transition driving member is slidably connected to the character wheel frame and slidably cooperates with the driving member, the check plate contacts the transition driving member and is arranged along the first direction; the third elastic member is located on the side of the check plate away from the transition driving member, and its two ends are respectively in contact with the check plate and the character wheel frame; the check plate has the first clamping portion.

8. The wheel combination lock according to claim 7, characterized in that: The reset link comprises: a slider and a transition link, the slider is slidably connected to the wheel frame and is arranged opposite to the reset push plate along the second direction, and two ends of the transition link are respectively hinged to the slider and one end of the reset pendulum; Wherein, the sliding block moves along the second direction driven by the reset push plate or the transition connecting rod.

9. The wheel combination lock according to any one of claims 6 to 8, characterized in that: The first clamping portion includes: a plurality of first sawtooth protrusions arranged in an array along the second direction; the second clamping portion includes: a plurality of second sawtooth protrusions matching the plurality of first sawtooth protrusions; When the reset push plate descends in the second direction, the second sawtooth protrusion is slidably connected with the first sawtooth protrusion; after the second sawtooth protrusion is engaged with the first sawtooth protrusion, it is used to limit the reset push plate from ascending in the second direction.

10. The wheel combination lock according to any one of claims 6 to 8, characterized in that: The transition drive member has a first arcuate convex surface and a second arcuate convex surface symmetrically arranged along a first direction; the drive member has an arcuate convex surface matching the first arcuate convex surface and the second arcuate convex surface.

Images