Car combination lock

Abstract

This utility model discloses a vehicle combination lock, including a lock body, a sliding lock, a lock hook, a combination component, and an installation structure. The lock body has an internal guide rail, along which the sliding lock can move and engage with the lock hook to achieve locking and unlocking operations. The combination component includes first, second, and third combination wheels, which work together to control the extension and retraction of the lock cylinder. A correct combination of numbers can unlock the vehicle, improving anti-theft performance. The lock body can be detachably fixed to the handlebars, rear, or frame of an electric bicycle or motorcycle via a mounting base or clamping structure, offering flexible installation options. This combination lock is compact, easy to operate, and provides anti-theft protection when locking helmets, takeout bags, or vehicle tools, while also allowing users to quickly retrieve and place items. Compared with existing technologies, this utility model has advantages such as high anti-theft performance, strong adaptability, ease of use, and small size, making it suitable for various vehicle models and scenarios involving the protection and locking of items carried in vehicles.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a vehicle combination lock. Background Technology

[0002] With the rise of the food delivery industry and the rapid popularization of electric bicycles, more and more riders need to frequently stop on city roads to pick up or deliver food. In daily use, in addition to preventing theft of the bicycles themselves, riders often need to temporarily store or secure items such as helmets, food bags, and tools. To prevent these items from being lost or stolen, certain protective or locking devices are usually required.

[0003] Currently, combination locks are widely used in the market as anti-theft devices due to their simple structure and ease of use. However, existing combination locks are mostly used for locking suitcases or for vehicle anti-theft purposes. They generally consist of a housing and a combination lock component inside the housing. By entering the correct combination, the lock hook is released, thus unlocking the vehicle.

[0004] However, combination locks that are fixedly installed on electric bicycles or motorcycles to lock items such as helmets, lunch bags, or tools are still relatively rare. Existing designs generally lack adaptation for such scenarios, have limited installation locations, and are not smooth enough in locking and unlocking operations, making it difficult to balance anti-theft functionality with ease of access to items.

[0005] Therefore, there is an urgent need for an improved combination lock that is compact, flexible in installation, and both theft-proof and easy to retrieve items. It can be fixedly installed on electric bicycles or motorcycles to securely lock helmets, lunch bags, and other items carried on the vehicle. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a combination lock structure that can be installed on electric bicycles or motorcycles. It is used to secure and lock items such as helmets, lunch bags, or vehicle tools, providing both anti-theft functionality and convenient access for users to quickly retrieve and place items.

[0007] The solution of this utility model to the above-mentioned technical problems is as follows:

[0008] A vehicle combination lock includes a lock body and a sliding lock that are slidably connected. The lock body is detachably mounted on the handlebar. The lock body has a guide rail for the sliding lock to slide up and down. The outer side of the guide rail has a limiting groove to restrict the movement of the sliding lock. The lock body is equipped with a lock hook. The locked item is located in the locking area formed by the lock hook and the sliding lock.

[0009] The sliding lock includes a housing, a top block, a first spring, a lifting block, and a combination lock structure. The top block, the first spring, the lifting block, and the combination lock structure are installed inside the housing. A slider that slides along a guide rail is provided on the outer side of the housing. The front end of the top block is provided with a protrusion that can enter and exit a limiting groove. The rear end of the top block may or may not abut against the lifting block. The first spring is sleeved on the top block. The front end of the first spring abuts against the force-bearing surface of the top block, and the rear end of the first spring abuts against the housing. The lifting block is installed at the lower end of the combination lock structure.

[0010] Furthermore, the combination lock structure includes an axle, a second spring, a first adjustment wheel, and a first combination wheel. The second spring is sleeved on the bottom end of the axle, the first adjustment wheel is sleeved on the top end of the axle, and the first combination wheel is sleeved on the first adjustment wheel. A lifting block is fixedly connected to the bottom surface of the axle. The lower end of the second spring abuts against the lifting block, and the top end of the first adjustment wheel abuts against the top end of the housing. The top surface of the axle and the top surface of the inner hole of the first adjustment wheel have cavities for the axle to move up and down during the unlocking process. In this embodiment, the upper end of the second spring abuts against the first adjustment wheel, and the first adjustment wheel is engaged between the housing and the second spring. The cavity, i.e., the top surface of the axle relative to the top surface of the inner hole of the first adjustment wheel, has an adjustable stroke in the axial direction, which is used for the up and down movement of the axle.

[0011] When unlocking is required, external force pulls the lifting block upwards, causing the wheel axle to move upwards. The top surface of the wheel axle approaches the top surface of the inner hole of the first adjusting wheel, compressing the second spring. The protrusion of the lifting block moves away from the rear end of the top block, and the protrusion of the top block slides upwards out of the lower limit groove, allowing the sliding lock to slide upwards along the lock body. Until the protrusion of the top block abuts against the upper limit groove, the external force on the lifting block is removed, the second spring returns to its original position, and the lifting block moves the wheel axle downwards. The top surface of the wheel axle moves away from the top surface of the inner hole of the first adjusting wheel, and the protrusion of the lifting block abuts against the rear end of the top block. The sliding lock cannot slide, and the locking area formed by the lock hook and the sliding lock opens, allowing items to be placed or removed.

[0012] When locking is required, external force pulls the lifting block upwards, causing the wheel shaft to move upwards. The top surface of the wheel shaft approaches the top surface of the inner hole of the first adjusting wheel, compressing the second spring. The protrusion of the lifting block moves away from the rear end of the top block, and the protrusion of the top block slides downwards out of the upper limit groove, allowing the sliding lock to slide downwards along the lock body. Until the protrusion of the top block abuts against the lower limit groove, the external force on the lifting block is removed, the second spring returns to its original position, and the lifting block moves the wheel shaft downwards. The top surface of the wheel shaft moves away from the top surface of the inner hole of the first adjusting wheel, and the protrusion of the lifting block abuts against the rear end of the top block. The sliding lock cannot slide, and the locking area formed by the lock hook and the sliding lock closes, at which point the item is locked.

[0013] Furthermore, the top surface of the housing is provided with a stepped through hole, the middle part of the first adjusting wheel abuts against the shoulder of the stepped through hole, and the top surface of the first adjusting wheel is flush with the top surface of the housing.

[0014] Furthermore, the interior of the housing is provided with a first receiving groove corresponding to the first code wheel, the first receiving groove is provided with a first observation through hole for observing the code numbers, the first receiving groove is provided with two first adjustment through holes for adjusting the code numbers, and the first code wheel extends out of the first adjustment through holes.

[0015] Furthermore, the housing has a clearance notch at the position corresponding to the lifting block to allow the lifting block to move up and down. The lifting block extends outward to have a handle for easy lifting. The handle extends out of the clearance notch, and the surface of the handle that contacts the hand is beveled and has anti-slip texture.

[0016] Furthermore, a protruding ridge extends from the surface where the lifting block abuts against the top block. In the locked state, the ridge abuts against the rear end of the top block. This ridge serves two purposes: firstly, it helps to avoid the top block when unlocking; secondly, it reduces the friction between the top block and the lifting block when unlocking.

[0017] Furthermore, there are two limiting grooves, namely an upper limiting groove and a lower limiting groove. The protrusion of the top block abuts against the lower limiting groove, and the locking hook and sliding lock are in the locked state. Alternatively, the protrusion of the top block abuts against the upper limiting groove, and the locking hook and sliding lock are in the unlocked state.

[0018] Furthermore, the guide rail is I-shaped, including a first track and a second track, and the slider includes a first slider and a second slider. The first slider is engaged in the first track and slides up and down along the first track, and the second slider is engaged in the second track and slides up and down along the second track. An arc-shaped locking ring is hinged to the back of the lock body, and the arc-shaped locking ring and the lock body are installed on an external device.

[0019] Furthermore, the axle is provided with a first lock cylinder protrusion, the inside of the first code wheel is provided with a first lock cylinder notch that matches the first lock cylinder protrusion, the outside of the first code wheel has a first locking strip, and the inside of the first code wheel has a first locking slot arranged circumferentially.

[0020] When unlocking: When the first combination wheel is turned, the first locking bar is located in the first locking slot. The first code wheel rotates with the first combination wheel. When the first combination wheel rotates to the correct number combination, the pull block is pulled by hand. The first lock cylinder protrusion passes through the first lock cylinder notch. The protrusion of the pull block leaves the rear end of the top block. The protrusion of the top block slides upward out of the lower limit groove. The sliding lock can slide along the lock body.

[0021] When setting the password: The first password wheel needs to be rotated to the correct numerical password. External force presses down on the first adjustment wheel, compressing the second spring. The notch in the first lock cylinder passes through the protrusion in the first lock cylinder, and the first locking bar retracts from the first slot. At this time, the first adjustment wheel does not rotate with the first password wheel. The first password wheel can be rotated freely to set the password numbers. Once the setting is complete, remove the external force, and the first adjustment wheel returns to its original position, allowing the first locking bar to insert into the first slot.

[0022] When the password is entered incorrectly: the first dial wheel rotates with the first password wheel. When the password is incorrect, the first lock cylinder protrusion cannot pass through the first lock cylinder notch, the lifting block cannot be pulled by hand, the protrusion of the lifting block keeps pressing against the rear end of the top block, the protrusion of the top block cannot slide out of the lower limit groove, and the sliding lock cannot slide along the lock body.

[0023] Furthermore, it also includes a second code wheel, a third code wheel, a second cipher wheel, and a third cipher wheel. The second code wheel and the third code wheel are completely identical, as are the first cipher wheel, the second cipher wheel, and the third cipher wheel. The second cipher wheel is mounted on the second code wheel, and the third cipher wheel is mounted on the third code wheel.

[0024] The second spring, the third adjusting wheel, the second adjusting wheel, and the first adjusting wheel are sequentially sleeved on the axle from bottom to top and abut against each other in sequence;

[0025] The interior of the housing is provided with a second receiving groove corresponding to the position of the second code wheel. The second receiving groove is provided with a second observation through hole for observing the code number, and two second adjustment through holes for adjusting the code number. The second code wheel extends out of the second adjustment through holes.

[0026] The interior of the housing is provided with a third receiving groove corresponding to the third code wheel. The third receiving groove is provided with a third observation through hole for observing the code numbers, and two third adjustment through holes for adjusting the code numbers. The third code wheel extends out of the third adjustment through holes.

[0027] The axle is also provided with a second lock cylinder protrusion, the inside of the second code wheel is provided with a second lock cylinder notch that matches the second lock cylinder protrusion, the outside of the second code wheel has a second locking strip, and the inside of the second code wheel has a second locking slot arranged circumferentially.

[0028] The axle is also provided with a third lock cylinder protrusion, the third code wheel is provided with a third lock cylinder notch that matches the third lock cylinder protrusion, the outer protrusion of the third code wheel has a third locking strip, and the inner part of the third code wheel has a third locking slot arranged circumferentially.

[0029] In this invention, the structural design of the second and third combination wheels aims to improve the security of the combination lock. When only the first combination wheel is used, the user can rotate it to change the numbers from 0 to 9 sequentially, resulting in 10 possible combinations. Without other restrictive mechanisms, it is possible to unlock the lock through repeated attempts. However, by adding the second and third combination wheels, the combination of numbers expands from a single set to three sets, significantly increasing the number of possible combinations. Each combination wheel has ten numbers (0–9), resulting in a total of 1000 possible combinations, greatly increasing the difficulty of cracking and significantly enhancing the lock's security and anti-theft performance.

[0030] Furthermore, the vehicle combination lock also includes an unlocking accessory. The top surface of the unlocking accessory is provided with a stepped through hole, which presses down on the top surface of the first dialing wheel under the action of external force.

[0031] Furthermore, anti-slip rings are provided on the surfaces of the arc-shaped locking ring and the lock body that come into contact with external equipment.

[0032] This invention has the following advantages over the prior art:

[0033] 1. The structure is reasonable and easy to install. The main body of the combination lock of this utility model cooperates with the sliding lock through the guide rail to realize the locking and unlocking operation; the main body of the lock can be detached and installed on the handlebars or body of the vehicle. The overall structure is compact and occupies little space. The installation position can be flexibly adjusted according to the vehicle structure, and it has strong adaptability.

[0034] 2. Simple to use and easy to put in and take out items. The sliding lock and the hook work together to form a locking area. To unlock, simply pull the lever to unlock. Users can quickly put in or take out helmets or lunch bags, improving ease of use.

[0035] 3. Superior anti-theft performance. The structure is designed with multiple sets of combination wheels. By setting up a 3-set combination wheel structure, the number of combination possibilities increases from 10 to 1000, effectively increasing the difficulty of unlocking and significantly enhancing the anti-theft performance.

[0036] 3. Reliable locking and high security. The cooperation between the top block and the limiting groove ensures that the sliding lock can be locked securely; the structural design of the lifting block, anti-slip bevel, and convex strip makes the unlocking and locking process stable and reliable, and less prone to accidental operation.

[0037] 4. Practical and widely applicable. This lock can be used to secure items such as helmets and lunch bags on electric bicycles and motorcycles, as well as for locking other portable devices, making it highly versatile and practical.

[0038] The terms used herein, such as “inner,” “outer,” “front,” and “back,” indicating spatial relative position, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims. Attached Figure Description

[0039] Figure 1 This is a structural schematic diagram of the vehicle combination lock of this utility model.

[0040] Figure 2 This is a schematic diagram of the lock body and a partial structure of the sliding lock.

[0041] Figure 3 yes Figure 2 Another perspective diagram.

[0042] Figure 4 This is a schematic diagram of a partial structure of a sliding lock.

[0043] Figure 5 This is a schematic diagram of the combination lock structure and a partial top block structure.

[0044] Figure 6 yes Figure 4 A partial structural diagram.

[0045] Figure 7 yes Figure 5 A partial structural diagram.

[0046] Figure 8 This is a diagram of the sliding lock housing when opened. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Example 1:

[0049] like Figure 1 , Figure 2The vehicle combination lock shown includes a lock body 1 and a sliding lock 2 slidably connected to the lock body 1. The lock body 1 is detachably mounted on the handlebar. The lock body 1 has a guide rail 11 for the sliding lock 2 to slide up and down. The outer side of the guide rail 11 has a limiting groove 12 to restrict the movement of the sliding lock 2. The lock body 1 is provided with a lock hook 13. The locked item is located in the locking area 14 formed by the lock hook 13 and the sliding lock 2.

[0050] like Figure 2 , Figure 3 , Figure 4 As shown, the sliding lock 2 includes a housing 21, a top block 3, a first spring 31, a lifting block 4, and a combination lock structure 5. The top block 3, the first spring 31, the lifting block 4, and the combination lock structure 5 are installed inside the housing 21. A slider 22 that slides along the guide rail 11 is provided on the outer side of the housing 21. The front end of the top block 3 is provided with a protrusion 32 that can enter and exit the limiting groove 12. The rear end of the top block 3 may or may not abut against the lifting block 4. The first spring 31 is sleeved on the top block 3. The front end of the first spring 31 abuts against the force-bearing surface 33 of the top block 3, and the rear end of the first spring 31 abuts against the housing 21. The lifting block 4 is installed at the lower end of the combination lock structure 5.

[0051] like Figure 4 , Figure 5 As shown, the combination lock structure 5 includes an axle 51, a second spring 52, a first dialing wheel 53, and a first combination wheel 54. The second spring 52 is sleeved on the bottom end of the axle 51, the first dialing wheel 53 is sleeved on the top end of the axle 51, and the first combination wheel 54 is sleeved on the first dialing wheel 53. A lifting block 4 is fixedly connected to the bottom surface of the axle 51. The lower end of the second spring 52 abuts against the lifting block 4, and the top end of the first dialing wheel 53 abuts against the top end of the housing 21. The top surface of the axle 51 and the top surface of the inner hole of the first dialing wheel 53 have a cavity (obscured in the figure) for the axle 51 to move up and down during the unlocking process. In this embodiment, the upper end of the second spring 52 abuts against the first dialing wheel 53, and the first dialing wheel 53 is engaged between the housing 21 and the second spring 52. The cavity means that the top surface of the axle 51 has an adjustable stroke in the axial direction relative to the top surface of the inner hole of the first dialing wheel 53, and the adjustable stroke is used for the up and down movement of the axle 51.

[0052] like Figure 1 , Figure 3 , Figure 5 , Figure 6As shown, when unlocking is required, an external force pulls the lifting block 4 upward, causing the lifting block 4 to move the axle 51 upward. The top surface of the axle 51 approaches the top surface of the inner hole of the first adjusting wheel 53, compressing the second spring 52. The protrusion 43 of the lifting block 4 moves away from the rear end of the top block 3, and the protrusion 32 of the top block 3 slides upward out of the lower limit groove 12, allowing the sliding lock 2 to slide upward along the lock body 1. Until the protrusion 32 of the top block 3 abuts against the upper limit groove 12, the external force on the lifting block 4 is removed, the second spring 52 resets, and the lifting block 4 drives the axle 51 downward. The top surface of the axle 51 moves away from the top surface of the inner hole of the first adjusting wheel 53, and the protrusion 43 of the lifting block 4 abuts against the rear end of the top block 3. The sliding lock 2 cannot slide, and the locking area 14 formed by the lock hook 13 and the sliding lock 2 opens, allowing items to be placed or removed.

[0053] When locking is required, external force pulls the lifting block 4 upward, causing the axle 51 to move upward. The top surface of the axle 51 approaches the top surface of the inner hole of the first adjusting wheel 53, compressing the second spring 52. The protrusion 43 of the lifting block 4 moves away from the rear end of the top block 3, and the protrusion 32 of the top block 3 slides downward out of the upper limit groove 12, allowing the sliding lock 2 to slide downward along the lock body 1. Until the protrusion 32 of the top block 3 abuts against the lower limit groove 12, the external force on the lifting block 4 is removed, the second spring 52 returns to its original position, and the lifting block 4 drives the axle 51 downward. The top surface of the axle 51 moves away from the top surface of the inner hole of the first adjusting wheel 53, and the protrusion 43 of the lifting block 4 abuts against the rear end of the top block 3. The sliding lock 2 cannot slide, and the locking area 14 formed by the lock hook 13 and the sliding lock 2 is closed. At this point, the item is locked.

[0054] like Figure 1 , Figure 6 As shown, the top surface of the housing 21 is provided with a stepped through hole 23, the middle part of the first adjusting wheel 53 abuts against the shoulder 20 of the stepped through hole 23, and the top surface of the first adjusting wheel 53 is flush with the top surface of the housing 21.

[0055] like Figure 1 , Figure 6 As shown, the housing 21 has a first receiving groove 24 at a position corresponding to the first password wheel 54. The first receiving groove 24 has a first observation through hole 25 for observing the password numbers and two first adjustment through holes 26 for adjusting the password numbers. The first password wheel 54 extends out of the first adjustment through holes 26.

[0056] like Figure 2 , Figure 4 As shown, the housing 21 has a clearance notch 27 at the position corresponding to the lifting block 4 to allow the lifting block 4 to move up and down. The lifting block 4 extends outward to have a handle 41 for easy lifting. The handle 41 extends out of the clearance notch 27. The surface of the handle 41 that contacts the hand is a slope and is provided with anti-slip texture 42.

[0057] like Figure 6 As shown, a protruding ridge 43 protrudes from the surface of the lifting block 4 that abuts against the top block 3. In the locked state, the ridge 43 abuts against the rear end of the top block 3. This ridge 43 serves two purposes: firstly, it helps to avoid the top block 3 when unlocking; secondly, it reduces the friction between the top block 3 and the lifting block 4 when unlocking.

[0058] like Figure 2 , Figure 3 As shown, there are two limiting grooves 12, namely an upper limiting groove and a lower limiting groove. The protrusion 32 of the top block 3 abuts against the lower limiting groove, and the locking hook 13 and the sliding lock 2 are in the locked state. Alternatively, the protrusion 32 of the top block 3 abuts against the upper limiting groove, and the locking hook 13 and the sliding lock 2 are in the unlocked state.

[0059] like Figure 1 , Figure 3 As shown, the guide rail 11 is I-shaped and includes a first rail 15 and a second rail 16. The slider 22 includes a first slider 28 and a second slider 29. The first slider 28 is engaged in the first rail 15 and slides up and down along the first rail 15. The second slider 29 is engaged in the second rail 16 and slides up and down along the second rail 16. An arc-shaped locking ring 6 is hinged to the back of the lock body 1. The arc-shaped locking ring 6 and the lock body 1 are installed on an external device.

[0060] like Figure 6 , Figure 7 As shown, the wheel axle 51 is provided with a first lock cylinder protrusion 55, the first code wheel 53 is provided with a first lock cylinder notch 50 that matches the first lock cylinder protrusion 55, the first code wheel 53 has a first locking strip 56 protruding on its exterior, and the first code wheel 54 has a first locking slot 57 arranged circumferentially inside.

[0061] When unlocking: When the first combination wheel 54 is rotated, the first locking bar 56 is located in the first locking slot 57, and the first code wheel 53 rotates with the first combination wheel 54. When the first combination wheel 54 rotates to the correct number combination, the lifting block 4 is pulled by hand, the first lock cylinder protrusion 55 passes through the first lock cylinder notch 50, the protrusion 43 of the lifting block 4 leaves the rear end of the top block 3, and the protrusion 32 of the top block 3 slides upward out of the lower limit groove 12, and the sliding lock 2 can slide along the lock body 1;

[0062] When setting the password: The first password wheel 54 needs to be rotated to the correct password number. External force presses on the first adjustment wheel 53, compressing the second spring 52. The first lock cylinder notch 50 passes through the first lock cylinder protrusion 55, and the first locking bar 56 retracts from the first locking slot 57. At this time, the first adjustment wheel 53 does not rotate with the first password wheel 54. The first password wheel 54 can be rotated freely to set the password numbers. Once the setting is complete, the external force is removed, the first adjustment wheel 53 returns to its original position, and the first locking bar 56 inserts into the first locking slot 57.

[0063] When the password is entered incorrectly: the first code wheel 53 rotates with the first password wheel 54. When the password is incorrect, the first lock cylinder protrusion 55 cannot pass through the first lock cylinder notch 50, the lifting block 4 cannot be pulled by hand, the protrusion 43 of the lifting block 4 keeps pressing against the rear end of the top block 3, the protrusion 32 of the top block 3 cannot slide out of the lower limit groove 12, and the sliding lock 2 cannot slide along the lock body 1.

[0064] Example 2:

[0065] The difference from Example 1 is:

[0066] like Figure 4 , Figure 7 As shown, it also includes a second code wheel 58, a third code wheel 59, a second code wheel 7 and a third code wheel 8. The second code wheel 58 and the third code wheel 59 are completely identical. The first code wheel 54, the second code wheel 7 and the third code wheel 8 are completely identical. The second code wheel 7 is mounted on the second code wheel 58 and the third code wheel 8 is mounted on the third code wheel 59.

[0067] The second spring 52, the third adjustment wheel 59, the second adjustment wheel 58, and the first adjustment wheel 53 are sequentially sleeved on the wheel axle 51 from bottom to top, and abut against each other in sequence;

[0068] like Figure 8 As shown, the housing 21 has a second receiving groove 61 at the position corresponding to the second password wheel 7. The second receiving groove 61 has a second observation through hole 62 for observing password numbers and two second adjustment through holes 63 for adjusting password numbers. The second password wheel 7 extends out of the second adjustment through holes 63.

[0069] The housing 21 has a third receiving groove 64 inside, corresponding to the third code wheel 8, to accommodate the third code wheel 8. The third receiving groove 64 has a third observation through hole 65 for observing the code numbers, and two third adjustment through holes 66 for adjusting the code numbers. The third code wheel 8 extends out of the third adjustment through holes 66.

[0070] like Figure 5 , Figure 7 As shown, the axle 51 is also provided with a second lock cylinder protrusion 71, the second code wheel 58 is provided with a second lock cylinder notch 72 that matches the second lock cylinder protrusion 71, the outer protrusion of the second code wheel 58 has a second locking strip, and the inner circumferential arrangement of the second code wheel 7 has a second locking slot.

[0071] The axle 51 is also provided with a third lock cylinder protrusion 81, the third code wheel 59 is provided with a third lock cylinder notch 82 that matches the third lock cylinder protrusion 81, the external protrusion 32 of the third code wheel 59 has a third locking strip 83, and the third code wheel 8 has a third locking slot arranged circumferentially inside.

[0072] like Figure 1 As shown, the vehicle combination lock also includes an unlocking accessory. The unlocking accessory is inserted into the top surface of the housing 21 and has a stepped through hole 23. Under the action of external force, it presses down on the top surface of the first code wheel 53.

[0073] like Figure 1 As shown, anti-slip rings 10 are provided on the surfaces of the arc-shaped locking ring 6 and the lock body 1 that contact the external equipment.

[0074] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A vehicle combination lock, characterized in that: The lock includes a sliding lock with the lock body slidably connected to the lock body. The lock body is detachably mounted on the handlebar. The lock body has a guide rail for the sliding lock to slide up and down. The outer side of the guide rail has a limiting groove to restrict the movement of the sliding lock. The lock body is provided with a lock hook. The locked item is located in the locking area formed by the lock hook and the sliding lock. The sliding lock includes a housing, a top block, a first spring, a lifting block, and a combination lock structure. The top block, the first spring, the lifting block, and the combination lock structure are installed inside the housing. A slider that slides along a guide rail is provided on the outer side of the housing. The front end of the top block is provided with a protrusion that can enter and exit a limiting groove. The rear end of the top block may or may not abut against the lifting block. The first spring is sleeved on the top block. The front end of the first spring abuts against the force-bearing surface of the top block, and the rear end of the first spring abuts against the housing. The lifting block is installed at the lower end of the combination lock structure.

2. The vehicle combination lock according to claim 1, characterized in that: The combination lock structure includes an axle, a second spring, a first adjustment wheel, and a first combination wheel. The second spring is sleeved on the bottom end of the axle, the first adjustment wheel is sleeved on the top end of the axle, and the first combination wheel is sleeved on the first adjustment wheel. A lifting block is fixedly connected to the bottom surface of the axle. The lower end of the second spring abuts against the lifting block, and the top end of the first adjustment wheel abuts against the top end of the housing. The top surface of the axle and the top surface of the inner hole of the first adjustment wheel have cavities for the axle to move up and down during the unlocking process.

3. The vehicle combination lock according to claim 2, characterized in that: The top surface of the housing is provided with a stepped through hole, the middle part of the first adjusting wheel abuts against the shoulder of the stepped through hole, and the top surface of the first adjusting wheel is flush with the top surface of the housing.

4. The vehicle combination lock according to claim 2, characterized in that: The housing has a first receiving groove inside the housing corresponding to the first code wheel. The first receiving groove has a first observation through hole for observing the code numbers and two first adjustment through holes for adjusting the code numbers. The first code wheel extends out of the first adjustment through holes.

5. The vehicle combination lock according to claim 1, characterized in that: The housing has a clearance notch at the position corresponding to the lifting block to allow the lifting block to move up and down. The lifting block extends outward to have a handle for easy lifting. The handle extends out of the clearance notch, and the surface of the handle that contacts the hand is beveled and has anti-slip texture.

6. The vehicle combination lock according to claim 1, characterized in that: The lifting block has a protruding strip on the surface that abuts against the top block. In the locked state, the protruding strip abuts against the rear end of the top block.

7. The vehicle combination lock according to claim 1, characterized in that: There are two limiting grooves, namely an upper limiting groove and a lower limiting groove. The protrusion of the top block abuts against the lower limiting groove, and the locking hook and sliding lock are in the locked state. Alternatively, the protrusion of the top block abuts against the upper limiting groove, and the locking hook and sliding lock are in the unlocked state.

8. The vehicle combination lock according to claim 1, characterized in that: The guide rail is I-shaped and includes a first track and a second track. The slider includes a first slider and a second slider. The first slider is engaged in the first track and slides up and down along the first track. The second slider is engaged in the second track and slides up and down along the second track. An arc-shaped locking ring is hinged to the back of the lock body. The arc-shaped locking ring and the lock body are installed on an external device.

9. The vehicle combination lock according to claim 2, characterized in that: The axle is provided with a first lock cylinder protrusion, the inside of the first code wheel is provided with a first lock cylinder notch that matches the first lock cylinder protrusion, the outside of the first code wheel has a first locking strip, and the inside of the first code wheel has a first locking slot arranged circumferentially.

10. The vehicle combination lock according to claim 5, characterized in that: It also includes a second code wheel, a third code wheel, a second cipher wheel, and a third cipher wheel. The second code wheel and the third code wheel are completely identical. The first cipher wheel, the second cipher wheel, and the third cipher wheel are completely identical. The second cipher wheel is mounted on the second code wheel, and the third cipher wheel is mounted on the third code wheel. The second spring, the third adjustment wheel, the second adjustment wheel, and the first adjustment wheel are sequentially sleeved on the axle from bottom to top and abut against each other in sequence; The interior of the housing is provided with a second receiving groove corresponding to the position of the second code wheel. The second receiving groove is provided with a second observation through hole for observing the code number, and two second adjustment through holes for adjusting the code number. The second code wheel extends out of the second adjustment through holes. The interior of the housing is provided with a third receiving groove corresponding to the third code wheel. The third receiving groove is provided with a third observation through hole for observing the code numbers, and two third adjustment through holes for adjusting the code numbers. The third code wheel extends out of the third adjustment through holes.

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