A Knob Type Word Wheel Lock

Abstract

The present invention discloses a knob-type wheel lock, comprising a relatively rotatable knob and panel, a lock tongue and a wheel assembly mounted on the panel; the knob is provided with a cylindrical mounting cavity; the panel is pivotally connected and fitted at the opening of the mounting cavity; the lock tongue is mounted on the side wall of the mounting cavity and can move axially along the mounting cavity; the wheel assembly has a base and a wheel shaft, and when the password of the wheel assembly is correct, the end of the wheel shaft can perform telescopic movement on the side wall of the base and cooperate with the lock tongue. The present invention provides a relatively rotatable knob and panel, so that the unlocking operation of the password lock becomes a circular motion. The user can realize the relative movement of the lock tongue and the wheel shaft of the wheel assembly by rotating the knob to make the knob and the panel rotate relative to each other, and complete the unlocking or locking operation. The structure is more compact, so that the overall volume can be designed to be smaller, so as to achieve the purpose of saving installation space, and the product can be more flexible in application scenarios.

Description

Technical Field

[0001] The invention relates to the field of password locks, in particular to a knob type password wheel lock. Background Art

[0002] A combination lock is a type of lock that is generally unlocked using a set of numbers or symbols. Users only need to remember the password and do not need to configure a key, which makes it more convenient to use.

[0003] There are many types of combination locks, such as multi-dial, rotary, mechanical, electronic, card, fingerprint, etc. Among them, the mechanical type is generally a wheel lock, which is more common. The existing wheel lock is usually a long strip structure, which is large in size and occupies a large space, and is inconvenient to be installed in a locker with a small door. Summary of the invention

[0004] The purpose of the present invention is to provide a knob type wheel lock, which can reduce the volume, save installation space and make the installation more flexible.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A knob-type wheel lock comprises a relatively rotatable knob and panel, a lock tongue and a wheel assembly mounted on the panel; the knob is provided with a cylindrical mounting cavity; the panel is pivotally engaged at the opening of the mounting cavity; the lock tongue is mounted on the side wall of the mounting cavity and can move along the axial direction of the mounting cavity; the wheel assembly has a base and a wheel shaft, when the password of the wheel assembly is correct, the end of the wheel shaft can perform telescopic movement on the side wall of the base and movably cooperate with the lock tongue, so that the knob can be rotated relative to the panel to realize unlocking or locking.

[0007] The knob-type wheel lock also includes a lock tongue spring. A movable groove is provided on the side wall of the installation cavity. The movable groove is arranged along the axial direction of the installation cavity. The lock tongue is movably fitted in the movable groove. The lock tongue spring is arranged between the lock tongue and the bottom of the movable groove to provide elastic force to reset the lock tongue.

[0008] An unlocking slope and a locking slope are respectively provided on both sides of the lock tongue; the unlocking slope faces the unlocking direction of the character wheel shaft, so that the lock tongue presses and retracts the character wheel shaft as the knob is rotated; the locking slope faces the locking direction of the character wheel shaft and is inclined to the axial direction of the installation cavity, so that the character wheel shaft presses and descends the lock tongue as the knob is rotated.

[0009] One end of the character wheel shaft is provided with a guiding inclined surface which is arranged opposite to the unlocking inclined surface and the locking inclined surface.

[0010] The character wheel assembly comprises a base with an active cavity, a character wheel shaft, a plurality of bushings and a character wheel, as well as a reset assembly, a positioning member and a protection frame; the base is mounted on the panel and is located in the mounting cavity; the character wheel shaft penetrates the active cavity and performs telescopic movement along the axial direction of the active cavity, and one end of the character wheel shaft is arranged opposite to the lock tongue to realize unlocking and locking; the bushing is sleeved on the character wheel shaft and can be relatively stationary or relatively rotated with the character wheel shaft as the character wheel shaft moves axially; the character wheel is arranged correspondingly to the bushing and can The bushing rotates together with or relatively to the bushing; the reset group is used to reset the character wheel; the positioning member is mounted on the base and arranged opposite to the character wheel to limit the resetting of the character wheel; the protection frame is mounted on the base and can move along the axial direction of the base to make the bushing move relative to the character wheel and change the matching mode between the bushing and the character wheel; wherein the relative rotation of the knob and the panel drives the character wheel shaft and the protection frame to move along the axial direction of the base, and makes the positioning member limit or unlock the rotation of the character wheel.

[0011] The reset assembly comprises a character wheel magnet and a reset magnet, wherein the character wheel magnet is arranged opposite to the character wheel, and the reset magnet is used to attract the character wheel magnet to reset the character wheel; the character wheel magnets are arranged in pairs, and each character wheel is provided with a stack of character wheel magnets with opposite polarities; the reset magnet is arranged along the axial direction of the character wheel shaft and is installed on the character wheel shaft.

[0012] The outer circumference of the character wheel shaft is provided with a plurality of protrusions, the bushing corresponds to the protrusions one by one, the inner wall of the bushing is provided with a first slot arranged opposite to the protrusions, and the protrusions are engaged in the first slot as the character wheel shaft moves.

[0013] The outer periphery of the bushing is provided with a plurality of limit protrusions arranged at equal intervals, the inner wall of the character wheel is provided with limit slots arranged opposite to the limit protrusions, and the limit protrusions are movably fitted in the limit slots.

[0014] The character wheel assembly also includes a spring mounting seat, a character wheel shaft spring and a protection frame spring, which are arranged at the end of the character wheel shaft away from the lock tongue. The spring mounting seat is arranged between the end of the character wheel shaft away from the lock tongue and the side wall of the mounting cavity. The character wheel shaft spring and the protection frame spring are both installed on the spring mounting seat and provide elastic force to realize axial movement of the character wheel shaft and the protection frame respectively. The character wheel assembly also includes a positioning member spring, the positioning member is pivotally engaged with the base, one side of the positioning member has a claw arranged corresponding to the number of the character wheel, a second slot is arranged between two adjacent code words of the character wheel, the claw is arranged opposite to the second slot, the positioning member spring is arranged between the other side of the positioning member and the base to provide elastic force to drive the positioning member to rotate so that the claw is embedded in the second slot to limit the rotation of the character wheel; an unlocking boss is arranged at the bottom of the mounting cavity, the unlocking boss is arranged opposite to the other side of the positioning member, the positioning member is movably engaged with the unlocking boss as the knob is rotated, and the claw is disengaged from the second slot when the positioning member contacts the unlocking boss.

[0015] After adopting the above technical scheme, the present invention sets a knob and panel that can rotate relative to each other, so that the unlocking operation of the combination lock becomes a circular motion. The user rotates the knob to make the knob and the panel rotate relative to each other, thereby realizing the relative movement of the lock tongue and the wheel shaft of the wheel assembly to complete the unlocking or locking operation. The structure is more compact, so that the overall volume can be designed to be smaller, so as to achieve the purpose of saving installation space, and the product can be more flexible in application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a specific embodiment of the present invention;

[0017] Figure 2 An exploded view of a specific embodiment of the present invention;

[0018] Figure 3 It is an exploded view of a character wheel assembly according to a specific embodiment of the present invention;

[0019] Figure 4 It is a three-dimensional diagram of a knob according to a specific embodiment of the present invention;

[0020] Figure 5 It is a three-dimensional diagram of a lock tongue according to a specific embodiment of the present invention;

[0021] Figure 6 It is a three-dimensional diagram of a character wheel shaft according to a specific embodiment of the present invention;

[0022] Figure 7 It is a three-dimensional diagram of a character wheel and a bushing according to a specific embodiment of the present invention;

[0023] Figure 8This is a schematic diagram of the structure of an unlocked state of a specific embodiment of the present invention;

[0024] Fig. 9 This is a schematic diagram of the structure of the unlocked state of a specific embodiment of the present invention;

[0025] Fig.10 This is a structural schematic diagram of a locked state of a specific embodiment of the present invention;

[0026] Description of Figure Numbers:

[0027] Knob 10; mounting cavity 11; movable groove 111; unlocking boss 112; panel 20; lock tongue 30; unlocking slope 31; locking slope 32; character wheel assembly 40; base 41; movable cavity 411; character wheel groove 4111; character wheel shaft 42; guide slope 421; protrusion 422; bushing 43; first slot 431; limiting protrusion 432; character wheel 44; limiting slot 441; second slot 442; reset assembly 45; character wheel magnet 451; reset magnet 452; positioning piece 46; claw 461; protection frame 47; spring mounting seat 48; character wheel shaft spring 481; protection frame spring 482; positioning piece spring 49; lock tongue spring 50. DETAILED DESCRIPTION

[0028] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0029] The present invention is a knob type wheel lock, comprising a knob 10 and a panel 20 which can rotate relatively, a lock tongue 30 and a wheel assembly 40 installed on the panel 20.

[0030] The knob 10 is provided with a cylindrical mounting cavity 11 .

[0031] The panel 20 is pivotally connected to the opening of the installation cavity 11 .

[0032] The locking tongue 30 is installed on the side wall of the installation cavity 11 and can move along the axial direction of the installation cavity 11 .

[0033] The above-mentioned wheel assembly 40 has a base 41 and a wheel shaft 42. When the password of the wheel assembly 40 is correct, the end of the wheel shaft 42 can make a telescopic movement on the side wall of the base 41 and cooperate with the lock tongue 30, so that the knob 10 can be rotated relative to the panel 20 to unlock or lock.

[0034] refer to Figures 1 to 7 Shown is a specific embodiment of the present invention.

[0035] The inner end of the knob 10 is configured as a locking end to restrict or allow the cabinet door installed by the present invention to be opened and closed.

[0036] The present invention also includes a lock tongue spring 50. A movable groove 111 is provided on the side wall of the above-mentioned installation cavity 11. The movable groove 111 is arranged along the axial direction of the installation cavity 11. The lock tongue 30 is movably fitted in the movable groove 111. The lock tongue spring 50 is arranged between the lock tongue 30 and the bottom of the movable groove 111 to provide elastic force to reset the lock tongue 30 upward, thereby ensuring the working stability of the lock tongue 30.

[0037] The two sides of the lock tongue 30 are respectively provided with an unlocking inclined surface 31 and a locking inclined surface 32. The unlocking inclined surface 31 faces the unlocking direction of the character wheel shaft 42, so that the lock tongue 30 presses and retracts the character wheel shaft 42 as the knob 10 rotates; the locking inclined surface 32 faces the locking direction of the character wheel shaft 42 and is inclined to the axial direction of the installation cavity 11, so that the character wheel shaft 42 presses and descends the lock tongue 30 as the knob 10 rotates.

[0038] One end of the character wheel shaft 42 is provided with a guide inclined surface 421 which is arranged opposite to the unlocking inclined surface 31 and the locking inclined surface 32 to ensure that the relative movement of the two is smoother.

[0039] The above-mentioned character wheel assembly 40 includes a base 41 with an active cavity 411, a character wheel shaft 42, a plurality of bushings 43 and a character wheel 44, as well as a reset assembly 45, a positioning member 46 and a protection frame 47. The base 41 is mounted on the panel 20 and is located in the mounting cavity 11. The character wheel shaft 42 penetrates the active cavity 411 and performs telescopic movement along the axial direction of the active cavity 411. One end of the character wheel shaft 42 is arranged opposite to the lock tongue 30 to achieve unlocking and locking. The bushing 43 is sleeved on the character wheel shaft 42, and can be relatively stationary or relatively rotated with the character wheel shaft 42 as the character wheel shaft 42 moves axially. The character wheel 44 is arranged corresponding to the bushing 43, and can rotate together or relatively rotate with the bushing 43. The reset assembly 45 is used to realize the reset of the character wheel 44. The positioning member 46 is mounted on the base 41 and arranged opposite to the character wheel 44 to limit the reset of the character wheel 44. The protection frame 47 is installed on the base 41 and can move along the axial direction of the base 41, so that the bushing 43 moves relative to the character wheel 44 to change the matching mode between the bushing 43 and the character wheel 44, wherein the relative rotation of the knob 10 and the panel 20 drives the character wheel shaft 42 and the protection frame 47 to move along the axial direction of the base 41, and the positioning member 46 limits or unlocks the rotation of the character wheel 44.

[0040] The reset assembly 45 comprises a character wheel magnet 451 and a reset magnet 452 . The character wheel magnet 451 is disposed opposite to the character wheel 44 . The reset magnet 452 is used to attract the character wheel magnet 451 to reset the character wheel 44 .

[0041] The above-mentioned character wheel magnets 451 are arranged in pairs, and each character wheel 44 is provided with a stack of character wheel magnets 451 with opposite polarities. The reset magnet 452 is arranged along the axial direction of the character wheel shaft 42 and installed on the character wheel shaft 42.

[0042] The reset assembly 45 further includes an accelerating magnet (not shown in the figure), which is mounted on the base 41 and arranged parallel to the reset magnet 452 .

[0043] The outer periphery of the character wheel shaft 42 is provided with a plurality of protrusions 422 , and the bushing 43 corresponds to the protrusions 422 one by one. The inner wall of the bushing 43 is provided with a first slot 431 arranged opposite to the protrusion 422 , and the protrusion 422 is engaged in the first slot 431 as the character wheel shaft 42 moves.

[0044] The outer circumference of the bushing 43 is provided with a plurality of equally spaced limiting protrusions 432 , and the inner wall of the character wheel 44 is provided with limiting slots 441 opposite to the limiting protrusions 432 , and the limiting protrusions 432 are movably fitted in the limiting slots 441 .

[0045] The side wall of the movable cavity 411 is provided with a character wheel groove 4111 corresponding to each character wheel 44 . The character wheel groove 4111 makes way for the rotation of the character wheel 44 and limits the axial movement of the character wheel 44 in the movable cavity 411 .

[0046] The above-mentioned character wheel assembly 40 also includes a spring mounting seat 48, a character wheel shaft spring 481 and a protection frame spring 482 arranged at the end of the character wheel shaft 42 away from the lock tongue 30. The spring mounting seat 48 is arranged between the end of the character wheel shaft 42 away from the lock tongue 30 and the side wall of the mounting cavity 11. The character wheel shaft spring 481 and the protection frame spring 482 are both installed on the spring mounting seat 48, and respectively provide elastic force to realize the axial movement of the character wheel shaft 42 and the protection frame 47.

[0047] Both ends of the protection frame 47 are sleeved on the character wheel shaft 42 and respectively abut against the bushings 43 at both ends of the inner side of the protection frame 47 , so that the protection frame 47 can drive the bushings 43 to move.

[0048] The above-mentioned character wheel assembly 40 also includes a positioning member spring 49. The positioning member 46 is pivotally connected to the base 41. One side of the positioning member 46 has a claw 461 corresponding to the number of the character wheel 44. A second slot 442 is provided between two adjacent code words of the character wheel 44. The claw 461 is arranged opposite to the second slot 442. The positioning member spring 49 is arranged between the other side of the positioning member 46 and the base 41 to provide elastic force to drive the positioning member 46 to rotate so that the claw 461 is embedded in the second slot 442, thereby limiting the rotation of the character wheel 44 due to the mutual attraction between the reset magnet 403 and the character wheel magnet 406. The bottom of the installation cavity 11 is provided with an unlocking boss 112, which is arranged opposite to the other side of the positioning member 46. The positioning member 46 is movably matched with the unlocking boss 112 as the knob 10 rotates. When the positioning member 46 contacts the unlocking boss 112, the claw 461 is disengaged from the second slot 442.

[0049] refer to Figure 8As shown, in the normal state (i.e., unlocked state) of the present invention, the password is in a disordered state, and the password is incorrect, so the protrusion 422 of the character wheel shaft 42 and the first slot 431 of the bushing 43 are not in a straight line, and the character wheel shaft 42 cannot perform telescopic movement (the character wheel shaft 42 is always in an extended state under the action of the character wheel shaft spring 481), so when the user wants to rotate the knob 10, the character wheel shaft 42 is stuck in the position of the lock tongue 30, and the knob 10 cannot rotate freely, that is, it cannot be unlocked.

[0050] refer to Fig. 9 As shown, when the password is correct, the protrusion 422 of the character wheel shaft 42 and the first slot 431 of the bushing 43 are aligned in a straight line, and the character wheel shaft 42 can freely perform telescopic movement. The user turns the knob 10 (indicated by the arrow in the figure), and the unlocking slope 31 of the lock tongue 30 presses the character wheel shaft 42 to retract (the protrusion 422 penetrates the first slot 431), so that the end of the character wheel shaft 42 passes over the lock tongue 30, that is, unlocking is achieved, and the knob 10 can be rotated within a set angle to achieve other functions.

[0051] refer to Fig.10 As shown, when locking is required, the user rotates the knob 10 in the reverse direction (indicated by the arrow in the figure) so that the end of the character wheel shaft 42 gradually approaches and abuts against the locking inclined surface 32 of the lock tongue 30, and by applying pressure to the locking inclined surface 32, the lock tongue 30 is pressed down and the lock tongue spring 50 is compressed, so that the end of the character wheel shaft 42 passes over the lock tongue 30 again and returns to the initial position, and then the lock tongue 30 is reset under the action of the lock tongue spring 50, and the movement of the character wheel shaft 42 is restricted again, that is, the knob 10 cannot rotate freely again, and the locking is completed.

[0052] Through the above scheme, the present invention converts the unlocking operation of the combination lock into a circular motion by setting a knob 10 and a panel 20 that can rotate relative to each other. The user rotates the knob 10 to make the knob 10 and the panel 20 rotate relative to each other, thereby realizing the relative movement of the lock tongue 30 and the wheel shaft 42 of the wheel assembly 40 to complete the unlocking or locking operation. The structure is more compact, so that the overall volume can be designed to be smaller, so as to achieve the purpose of saving installation space, and the product can be more flexible in application scenarios.

[0053] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A knob type wheel lock, characterized in that: It includes a relatively rotatable knob and panel, a lock tongue and a character wheel assembly installed on the panel; The knob is provided with a cylindrical mounting cavity; The panel is pivotally engaged at the opening of the mounting cavity; The locking tongue is installed on the side wall of the installation cavity and can move along the axial direction of the installation cavity; The wheel assembly comprises a base and a wheel shaft. When the password of the wheel assembly is correct, the end of the wheel shaft can perform telescopic movement on the side wall of the base and cooperate with the lock tongue, so that the knob can rotate relative to the panel to realize unlocking or locking. The character wheel assembly comprises a base with a movable cavity, a character wheel shaft, a plurality of sets of bushings and character wheels, a reset assembly, a positioning member and a protection frame; The base is mounted on the panel and is located in the mounting cavity; The wheel shaft passes through the active cavity and performs telescopic movement along the axial direction of the active cavity, and one end of the wheel shaft is arranged opposite to the lock tongue to realize unlocking and locking; The bushing is sleeved on the character wheel shaft and can be relatively stationary or relatively rotatable with the character wheel shaft as the character wheel shaft moves axially; The character wheel is arranged corresponding to the bushing and can rotate together with or relatively with the bushing; The reset component is used to reset the character wheel; The positioning member is mounted on the base and arranged opposite to the character wheel to limit the resetting of the character wheel; The protection frame is mounted on the base and can move along the axial direction of the base, so that the bushing moves relative to the character wheel to change the matching mode between the bushing and the character wheel; The relative rotation of the knob and the panel drives the character wheel shaft and the protection frame to move along the axial direction of the base, and enables the positioning member to limit or unlock the rotation of the character wheel.

2. A knob type wheel lock as claimed in claim 1, characterized in that: It also includes a lock tongue spring. A movable groove is arranged on the side wall of the installation cavity. The movable groove is arranged along the axial direction of the installation cavity. The lock tongue is movably fitted in the movable groove. The lock tongue spring is arranged between the lock tongue and the bottom of the movable groove to provide elastic force to reset the lock tongue.

3. The knob type wheel lock according to claim 1, characterized in that: An unlocking slope and a locking slope are respectively provided on both sides of the lock tongue; the unlocking slope faces the unlocking direction of the character wheel shaft, so that the lock tongue presses and retracts the character wheel shaft as the knob is rotated; the locking slope faces the locking direction of the character wheel shaft and is inclined to the axial direction of the installation cavity, so that the character wheel shaft presses and descends the lock tongue as the knob is rotated.

4. A knob type wheel lock as claimed in claim 3, characterized in that: One end of the character wheel shaft is provided with a guiding inclined surface which is arranged opposite to the unlocking inclined surface and the locking inclined surface.

5. The knob type wheel lock according to claim 1, characterized in that: The reset assembly comprises a character wheel magnet and a reset magnet, wherein the character wheel magnet is arranged opposite to the character wheel, and the reset magnet is used to attract the character wheel magnet to reset the character wheel; the character wheel magnets are arranged in pairs, and each character wheel is provided with a stack of character wheel magnets with opposite polarities; the reset magnet is arranged along the axial direction of the character wheel shaft and is installed on the character wheel shaft.

6. The knob type wheel lock according to claim 1, characterized in that: The outer circumference of the character wheel shaft is provided with a plurality of protrusions, the bushing corresponds to the protrusions one by one, the inner wall of the bushing is provided with a first slot arranged opposite to the protrusions, and the protrusions are engaged in the first slot as the character wheel shaft moves.

7. The knob type wheel lock according to claim 1, characterized in that: The outer periphery of the bushing is provided with a plurality of limit protrusions arranged at equal intervals, the inner wall of the character wheel is provided with limit slots arranged opposite to the limit protrusions, and the limit protrusions are movably fitted in the limit slots.

8. The knob type wheel lock according to claim 1, characterized in that: The character wheel assembly also includes a spring mounting seat, a character wheel shaft spring and a protection frame spring, which are arranged at the end of the character wheel shaft away from the lock tongue. The spring mounting seat is arranged between the end of the character wheel shaft away from the lock tongue and the side wall of the mounting cavity. The character wheel shaft spring and the protection frame spring are both installed on the spring mounting seat and provide elastic force to realize axial movement of the character wheel shaft and the protection frame respectively.

9. The knob type wheel lock according to claim 1, characterized in that: The character wheel assembly further includes a positioning member spring, the positioning member is pivotally connected to the base, one side of the positioning member has a claw arranged corresponding to the number of the character wheel, a second slot is arranged between two adjacent code words of the character wheel, the claw is arranged opposite to the second slot, and the positioning member spring is arranged between the other side of the positioning member and the base to provide elastic force to drive the positioning member to rotate so that the claw is embedded in the second slot to limit the rotation of the character wheel; An unlocking boss is arranged at the bottom of the installation cavity, and the unlocking boss is arranged opposite to the other side of the positioning member. The positioning member movably cooperates with the unlocking boss as the knob is rotated. When the positioning member contacts the unlocking boss, the claw disengages from the second slot.

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