Password disc brake lock of keyless pure mechanical structure

Abstract

The utility model discloses a password disc brake lock with a pure mechanical structure, which comprises a shell and a password lock assembly arranged on the shell, the password lock assembly comprises a spring bolt rod arranged on the shell and a plurality of password disc groups, a connecting rod is arranged on the plurality of password disc groups, and the connecting rod is connected with the shell. The connecting rod is provided with a password shaft corresponding to each password disk set, and the shell is provided with a button assembly. According to the utility model, a pure mechanical structure is kept, the switch can be opened and closed without a key, the operation is simpler and more convenient, more importantly, dust and silt can be prevented from entering the switch frequently in the outdoor use process to damage internal precise parts such as a spring, the occurrence of faults is reduced, and the service life of the switch is prolonged. And the service life is greatly prolonged, and the use requirements can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of lock products, in particular to a password disc brake lock with a purely mechanical structure. Background Art

[0002] As we all know, locks are commonly used tools in people's lives with a long history. They are mainly used to protect people's lives and property safety. Traffic locks are a type of locks with a wide range of usage scenarios. Traffic locks include U-shaped locks, steering wheel locks, cable locks and disc brake locks, etc. They mainly prevent personal vehicles from being stolen.

[0003] Disc brake locks are generally bicycle locks or motorcycle locks, etc., which are used to lock wheels, brakes, disc brake discs, etc. The disc brake lock includes a base and a shell, a lock core and a lock tongue rod connected to the lock core are arranged in the shell, a lock hole is arranged on the base, and when the lock tongue rod is inserted into the lock hole, it is locked, and when the lock tongue rod leaves the lock hole, it is opened. Electronic accessories such as circuit boards are arranged in the shell, which are used to control the alarm sound when the lock is opened abnormally. For example, the Chinese utility model patent with the authorization announcement number CN217581670U discloses a mechanical password disc brake lock, including a shell, a password lock The invention discloses an assembly and an alarm assembly, wherein a password lock position and a lock slot are provided on the housing, the alarm assembly is in the housing, the password lock assembly comprises a lock cylinder fixed in the password lock position, a lock tongue rod inserted in the lock cylinder, and at least two password disk groups which are sequentially stacked and sleeved on the lock cylinder for controlling the extension and retraction of the lock tongue rod in the lock cylinder, the lock tongue rod is provided with a fixed lock pin, and the lock cylinder is provided with a through slot for the fixed lock pin to be lifted and lowered; each password disk group comprises a fixed lock disk and a movable lock disk under the fixed lock disk, the movable lock disk is also sleeved with a password lock disk, and a reset spring is also provided between the lock tongue rod and the lock cylinder. Since bicycle locks or motorcycle locks are mostly outdoors, especially when it rains, dust or mud and sand will enter the interior and affect the internal components, thereby causing malfunctions, it is necessary to improve the prior art. Utility Model Content

[0004] 1. Technical issues that need to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a keyless, purely mechanical password disc brake lock, which maintains a purely mechanical structure while maintaining keyless opening and closing, making the operation simpler and more convenient. More importantly, it helps to reduce the risk of dust and sand entering the interior during frequent outdoor use, which may cause damage to precision components such as springs, thereby reducing the occurrence of malfunctions, greatly improving the service life, and better meeting usage requirements.

[0006] 2. Technical solutions that need to be adopted

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A keyless, purely mechanical, password disc brake lock comprises a shell and a password lock assembly arranged on the shell, the password lock assembly comprises a lock tongue rod arranged on the shell and a plurality of password disk groups, a connecting rod is arranged on the plurality of password disk groups, and a password shaft corresponding to each of the password disk groups is arranged on the connecting rod, and a button assembly is arranged on the shell; when the password on the password disk group is correct, the button assembly is activated to cause one end of the connecting rod to separate from the lock tongue rod to achieve unlocking, and when the password disk group is correct, only the lock tongue rod needs to be pressed down so that one end of the connecting rod is engaged with the lock tongue rod to achieve locking.

[0009] Preferably, the lock tongue rod includes a lock rod arranged on the shell and can slide up and down, a lock groove is arranged on the lock rod on the side corresponding to the direction of the password disk group, a reset spring is arranged at the lower part of the lock rod, and one end of the connecting rod cooperates with the lock groove to realize switching.

[0010] Preferably, the housing is provided with a sliding groove enabling the locking rod to slide up and down.

[0011] Preferably, a limit pin is provided on the housing, and the limit pin moves in the lock slot.

[0012] Preferably, each of the cipher disks corresponds to one cipher shaft, the cipher shaft is arranged between the connecting rod and the cipher disk, and a return spring is sleeved on the connecting rod, one end of the return spring abuts against the cipher shaft, and the other end of the return spring abuts against the housing.

[0013] Preferably, a middle hole is provided at the center of each of the password disks, and card slots are evenly spaced on the password disk centered on the middle hole. Correspondingly, a card block matching the card slot is provided on each of the password shafts, and the card slots of the password disk rotate synchronously with the card blocks. The password shaft moves back and forth on the connecting rod, so that when the password is correct, the connecting rod and the password shaft are linked to unlock and change the password.

[0014] Preferably, a step position is provided on the connecting rod, and the step position cooperates with the button assembly.

[0015] Preferably, the button assembly comprises a button arranged on the housing, a compression spring is arranged between the button and the housing, and a driving plate is arranged inside the housing, and the driving plate swings back and forth in the housing.

[0016] Preferably, a rotating shaft is provided in the middle section of the driving plate, and the rotating shaft is located on the shell, and the driving plate is swung back and forth by means of the rotating shaft, and a protrusion is provided on the upper part of the driving plate, and correspondingly, an inclined portion is provided on the button, and after the button is pressed downward, the inclined portion will contact the protrusion and thereby cause the lower part of the driving plate to tilt counterclockwise, and an assembly groove for cooperating with the step position is provided at the lower part of the driving plate.

[0017] Preferably, it further comprises a spring sheet arranged inside the housing, and a spring plate for popping up the password disk is arranged on the spring sheet.

[0018] Preferably, the housing comprises a main body and a chamber for accommodating the combination lock assembly, and a cover plate is provided on the chamber, and the cover plate is locked to the main body by a fastener.

[0019] Preferably, a drainage hole is provided on the main body.

[0020] Preferably, a limiting portion for limiting the horizontal movement of the code disk group is provided between the main body and the cover plate, and the limiting portion includes a first semicircle on the main body located at the chamber position and a second semicircle provided on the cover plate, and a notch is formed at the lower part after the first semicircle and the second semicircle overlap.

[0021] 3. Technical effects to be achieved

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] Firstly, the combination lock assembly of the utility model comprises a lock tongue rod and a plurality of combination disk groups arranged on a shell, a connecting rod is arranged on the plurality of combination disk groups, and a combination shaft corresponding to each combination disk group is arranged on the connecting rod, and a button assembly is arranged on the shell, which maintains a purely mechanical structure while maintaining a keyless switch, and is simpler and more convenient to operate. More importantly, this is conducive to reducing the dust and mud entering the interior during frequent outdoor use, which may cause damage to precision internal parts such as springs, reduces the occurrence of malfunctions, greatly improves the service life, and is more able to meet the use requirements.

[0024] Secondly, when the password on the password disk set is correct, the button assembly will be activated to cause one end of the connecting rod to separate from the lock tongue rod to achieve unlocking. When the password disk set is correct, it is only necessary to press the lock tongue rod down so that one end of the connecting rod is engaged with the lock tongue rod to achieve locking. This operation is achieved by turning the password on and off, which on the one hand improves the safety of the lock, and on the other hand, it ends the need to use a key to turn the lock on and off, making the operation easier and simpler, and convenient to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main viewing direction of the utility model.

[0026] Figure 2 It is an overall schematic diagram of the utility model.

[0027] Figure 3 It is a schematic diagram of the rear view direction of the utility model.

[0028] Figure 4 It is a schematic diagram of the utility model from the left side.

[0029] Figure 5 for Figure 4 Section view along AA direction.

[0030] Figure 6 It is an explosion diagram of the utility model.

[0031] Figure 7 This is a schematic diagram of the shell explosion of the utility model.

[0032] Figure 8 It is a schematic diagram of the cooperation of the connecting rod, password shaft, button assembly, return spring and spring piece of the utility model.

[0033] Fig. 9 This is a schematic diagram of the matching of the connecting rod and the driving plate of the utility model.

[0034] Fig.10 This is a schematic diagram of the code disk and the drive board of the utility model from the side view.

[0035] Fig.11 for Fig.10 Middle BB section view.

[0036] Fig.12 This is a schematic diagram of the lock rod structure of the utility model.

[0037] Fig.13 It is a schematic diagram of the spring structure of the utility model.

[0038] Fig.14 It is a schematic diagram of the structure of the restriction part of the utility model.

[0039] In the figure: 1, shell; 2, combination lock assembly; 11, main body; 12, chamber; 13, cover plate; 14, fastener; 15, drain hole; 16, limiting part; 21, lock tongue rod; 22, combination disk assembly; 23, connecting rod; 24, combination shaft; 25, button assembly; 26, return spring; 27, spring piece; 111, first semicircle; 161, first semicircle 1; 162, second semicircle; 163, notch; 211, lock rod; 212, lock groove; 213, return spring; 214, slide groove; 215, limit pin; 231, step position; 251, button; 252, compression spring; 253, drive plate; 254, assembly groove; 271, spring plate. DETAILED DESCRIPTION

[0040] In the description of the present utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0044] Example 1: See Figures 1 to 7 , a purely mechanical password disc brake lock, comprising a housing 1 and a password lock assembly 2 arranged on the housing 1, characterized in that: the password lock assembly 2 comprises a lock tongue rod 21 and a plurality of password disk groups 22 arranged on the housing 1, a connecting rod 23 is arranged on the plurality of password disk groups 22, and a password shaft 24 corresponding to each of the password disk groups 22 is arranged on the connecting rod 23, and a button assembly 25 is arranged on the housing 1, when the password on the password disk group 22 is correct, the button assembly 25 is activated to cause one end of the connecting rod 23 to be separated from the lock tongue rod 21 to realize an unlocking state, and when the password disk group 22 is correct, only the lock tongue rod 21 needs to be pressed down so that one end of the connecting rod 23 is engaged with the lock tongue rod 21 to realize a locking state. The utility model maintains a purely mechanical structure while maintaining keyless switching, which makes operation simpler and more convenient. More importantly, it helps to reduce the risk of dust and sand entering the interior during frequent outdoor use, which may cause damage to precision internal components such as springs, thereby reducing the occurrence of malfunctions and greatly increasing the service life, making it more able to meet usage needs.

[0045] Embodiment 2: It can be explained on the basis of embodiment 1, such as Figures 1 to 13 As shown, the lock tongue rod 21 includes a lock rod 211 that is arranged on the housing 1 and can slide up and down, and a lock slot 212 is arranged on the lock rod 211 on the side corresponding to the direction of the password disk group 22, and a reset spring 213 is arranged at the lower part of the lock rod 211, and one end of the connecting rod 23 cooperates with the lock slot 212 to realize the switch. It is to be noted that a slide slot 214 is arranged on the housing 1 to enable the lock rod 211 to slide up and down. It is also to be noted that a limit pin 215 is arranged on the housing 1, and the limit pin 215 moves in the lock slot 212, which is conducive to limiting the sliding range of the lock rod 211 and preventing the lock rod 2 from sliding back and forth in the slide slot 214 and disengaging.

[0046] Embodiment 3: It can be described on the basis of Embodiment 1 or Embodiment 2, such as Figures 1 to 13As shown, a plurality of the password disk groups 22 use four password disks, and correspondingly, the password shafts 24 also use four, and each of the password disks corresponds to one password shaft 24. The password shaft 24 is arranged between the connecting rod 23 and the password disk, and a return spring 26 is sleeved on the connecting rod 23, one end of the return spring 26 abuts against the password shaft 24, and the other end of the return spring 26 abuts against the housing 1, which is conducive to the return of the password shaft 24. It is to be noted that a middle hole is arranged at the center of each password disk, and card slots are evenly spaced on the password disk centered on the middle hole. Correspondingly, a card block matching the card slot is arranged on each password shaft 24, and the card slot of the password disk rotates synchronously with the card block. The password shaft 24 moves back and forth on the connecting rod 23 to realize unlocking and changing the password when the password is correct, so that the connecting rod 23 and the password shaft 24 can be linked to each other to realize unlocking and changing the password. In this embodiment, there are ten card slots, corresponding to the numbers 0 to 9 on the code disk.

[0047] Among them Figures 1 to 13 As shown, the connecting rod 23 is provided with a step position 231, and the step position 231 cooperates with the button assembly 25, which is conducive to the button assembly 25 to realize the back and forth movement of the connecting rod 23 through the step position 231. It is to be noted that the button assembly 25 includes a button 251 provided on the housing 1, and a compression spring 252 is provided between the button 251 and the housing 1, which is conducive to the return of the button 251, and a driving plate 253 is provided inside the housing 1, and the driving plate 253 swings back and forth in the housing 1, which will promote the back and forth movement of the connecting rod 23, and finally this is conducive to the locking or disengagement of the connecting rod 23 and the lock tongue rod 21.

[0048] like Figure 6 , Figure 8 and Fig. 9 As shown, specifically, a rotating shaft (not shown in the figure) is provided in the middle section of the driving plate 253, and the rotating shaft is located on the shell 1, and the driving plate 253 is swung back and forth by the rotating shaft, and a protrusion (not shown in the figure) is provided on the upper part of the driving plate 253, and correspondingly, an inclined portion (not shown in the figure) is provided on the button 251, and after the button 251 is pressed downward, the inclined portion will contact the protrusion and thereby cause the lower part of the driving plate 253 to tilt counterclockwise, and the lower part of the driving plate 253 is provided with an assembly groove 254 for cooperating with the step position 231, which is conducive to the horizontal back and forth movement of the connecting rod 23.

[0049] Among them Figures 1 to 13As shown, the housing 1 further includes a spring sheet 27 disposed inside the housing 1, and a spring plate 271 for the code disk to be ejected is disposed on the spring sheet 27, which is more conducive to the ejection of the code disk, thereby making it more convenient for the user to operate. It should be noted that grooves are evenly spaced on the circumference of each code disk, and each spring plate 271 is more conducive to easily ejecting the code disk, making the operation easier and more convenient.

[0050] Embodiment 4: It can be explained on the basis of embodiment 3, such as Figures 1 to 13 As shown, the housing 1 includes a main body 11 and a chamber 12 for accommodating the combination lock assembly 2, and a cover plate 13 is arranged on the chamber 12. The cover plate 13 and the main body 11 are locked by fasteners 14. In this embodiment, the fasteners 14 are bolts or screws, which are convenient for disassembly and installation. It should be noted that a drainage hole 15 is arranged on the main body 11. This arrangement is more conducive to the drainage of the accumulated water through the drainage hole 15 after outdoor use, especially when there is water accumulation, so as to avoid erosion of internal components. It should also be noted that Fig.14 As shown, a limiting portion 16 for limiting the horizontal movement of the code disk group 22 is provided between the main body 11 and the cover plate 13. In the present embodiment, the limiting portion 16 comprises a first semicircle 161 on the main body 11 located at the position of the chamber 12 and a second semicircle 162 provided on the cover plate 13. After the first semicircle 161 and the second semicircle 162 overlap, a notch 163 is formed at the lower portion. This is conducive to the block on the code shaft 24 rotating to the corresponding position of the notch 163, thereby facilitating unlocking and changing the code. Moreover, the first semicircle 161 and the second semicircle 162 overlap, which is conducive to limiting each code disk from moving left and right but only rotating, which is more conducive to meeting the use requirements.

[0051] Unlocking principle: since the card block on each of the password shafts 24 cooperates with the card slot on the corresponding password disk, wherein the password on the password disk is pre-set, when the card block on the password shaft 24 is engaged with the corresponding card slot on the password disk, when the utility model needs to unlock, it is only necessary to first rotate the correct digital password for each password disk in the password disk group 22, and then press the button 251, the inclined portion on the button 251 will contact the protruding portion on the upper part of the driving plate 253, so that the driving plate 253 will swing with the rotating shaft as the fulcrum, and then the assembly groove 254 of the driving plate 253 will cooperate with the step position 231 on the connecting rod 23, so that the connecting rod 23 can move to the side away from the lock groove 212, which is conducive to unlocking. When the password on the password disk group 22 is incorrectly input, the card block on the password shaft 24 does not correspond to the notch 163 of the limiting portion 16, so that the activation of the button 251 cannot cause the connecting rod 23 to move to the side away from the lock groove 212, and thus the purpose of unlocking cannot be achieved.

[0052] Principle of changing password: The utility model only needs to press and hold the button 251 for a long time, so that the inclined part on the button 251 will contact the protrusion on the upper part of the driving plate 253, and then the card block on the password shaft 24 will completely disengage from the corresponding card slot on the password disk, and then enter the gap 163 formed at the lower part after the first semicircle 161 and the second semicircle 162 overlap. At this time, the password disk can rotate independently of the password shaft 24. If the password disk turns to any number, and then release the button 251, let the password shaft 24 return to the position corresponding to the card slot on the password disk, so that the password is replaced.

[0053] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. A keyless, purely mechanical, code disc brake lock, comprising a housing (1) and a code lock assembly (2) arranged on the housing (1), characterized in that: The combination lock assembly (2) comprises a lock tongue rod (21) and a plurality of combination disk groups (22) arranged on the housing (1), each of the plurality of combination disk groups (22) being provided with a connecting rod (23), and a combination shaft (24) corresponding to each combination disk group (22) being provided on the connecting rod (23), and a button assembly (25) being provided on the housing (1); when the password on the combination disk group (22) is correct, the button assembly (25) is activated to cause one end of the connecting rod (23) to separate from the lock tongue rod (21) to achieve an unlocked state, and when the combination disk group (22) is correct, the lock tongue rod (21) only needs to be pressed down so that one end of the connecting rod (23) engages with the lock tongue rod (21) to achieve a locked state.

2. The keyless purely mechanical code disc brake lock according to claim 1, characterized in that: The lock tongue rod (21) comprises a lock rod (211) arranged on the housing (1) and capable of sliding up and down, a lock slot (212) being arranged on the side of the lock rod (211) corresponding to the direction of the password disk assembly (22), a return spring (213) being arranged at the lower part of the lock rod (211), and one end of the connecting rod (23) cooperates with the lock slot (212) to realize opening and closing.

3. The keyless purely mechanical code disc brake lock according to claim 2, characterized in that: A limit pin (215) is provided on the housing (1), and the limit pin (215) moves in the locking groove (212).

4. The keyless purely mechanical code disc brake lock according to claim 1, 2 or 3, characterized in that: Each of the code disks corresponds to a code shaft (24), the code shaft (24) is arranged between the connecting rod (23) and the code disk, and a return spring (26) is sleeved on the connecting rod (23), one end of the return spring (26) abuts against the code shaft (24), and the other end of the return spring (26) abuts against the housing (1).

5. The keyless purely mechanical code disc brake lock according to claim 4, characterized in that: Each of the password disks is provided with a middle hole at the center, and card slots are evenly spaced on the password disk centered on the middle hole. Correspondingly, each of the password shafts (24) is provided with a card block that matches the card slot. The card slot of the password disk rotates synchronously with the card block, and the password shaft (24) moves back and forth on the connecting rod (23). When the password is correct, the connecting rod (23) and the password shaft (24) are linked to unlock and change the password.

6. The keyless purely mechanical code disc brake lock according to claim 4, characterized in that: The connecting rod (23) is provided with a step position (231), and the step position (231) matches the button assembly (25).

7. The keyless purely mechanical code disc brake lock according to claim 6, characterized in that: The button assembly (25) comprises a button (251) arranged on the housing (1), a compression spring (252) is arranged between the button (251) and the housing (1), and a drive plate (253) is arranged inside the housing (1), and the drive plate (253) swings back and forth in the housing (1).

8. The keyless purely mechanical code disc brake lock according to claim 7, characterized in that: A rotating shaft is provided in the middle section of the driving plate (253), the rotating shaft being located on the housing (1), and the driving plate (253) is swung back and forth by means of the rotating shaft, and a protrusion is provided on the upper portion of the driving plate (253), and correspondingly, an inclined portion is provided on the button (251), and when the button (251) is pressed downward, the inclined portion contacts the protrusion, thereby causing the lower portion of the driving plate (253) to tilt counterclockwise, and an assembly groove (254) for cooperating with the step position (231) is provided on the lower portion of the driving plate (253).

9. The keyless purely mechanical code disc brake lock according to claim 4, characterized in that: It also comprises a spring sheet (27) arranged inside the housing (1), and a spring plate (271) is arranged on the spring sheet (27) for springing up the password disk.

10. The keyless purely mechanical code disc brake lock according to claim 4, characterized in that: The housing (1) comprises a main body (11) and a chamber (12) for accommodating the combination lock assembly (2), and a cover plate (13) is arranged on the chamber (12), the cover plate (13) and the main body (11) are locked by a fastener (14), a drainage hole (15) is arranged on the main body (11), and a limiting portion (16) for limiting the horizontal movement of the combination disk assembly (22) is arranged between the main body (11) and the cover plate (13), the limiting portion (16) comprises a first semicircle (161) on the main body (11) at the position of the chamber (12) and a second semicircle (162) arranged on the cover plate (13), and a notch (163) is formed at the lower part after the first semicircle (161) and the second semicircle (162) overlap.

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