Mechanical coded lock

Abstract

A circular ring is arranged in the center of the front face of a simple strip-shaped lock body, disc-shaped password sheets are placed in the circular ring, so that the circular password sheets can rotate reliably in the circular ring, and due to the fact that the circular password sheets are in large-face contact with the circular ring, the problem of unreliable use caused by deformation of the password sheets cannot occur even if the strength is not enough. According to the mechanical coded lock, the requirement for materials of manufactured parts is not high, the parts can be made of metal materials or plastics, after articles in logistics come to consumers, the package is opened only once, the mechanical coded lock is used for a few times, and therefore the mechanical coded lock is only low in cost and convenient to use. And the packaging box is simple in structure and can be applied to the industries, so that the completeness of articles can be effectively ensured by using the packaging with passwords in the logistics and anti-counterfeiting industries.

Description

Technical Field

[0001] The invention relates to a mechanical password lock, in particular to an external mechanical password lock with a simple structure and applicability, which can be made of metal material or plastic nylon material. Background Art

[0002] At present, with the popularity of express delivery, the public is more concerned about the hygiene of food in express delivery or the privacy of some personal items. How to ensure the integrity of items in logistics and express delivery? Providing the public with a package with a mechanical password lock may solve this problem. The password is only known by the logistics platform and the merchant or the sender himself. The third party can only obtain it by querying and scanning the code, and the record of each query can be checked back. When the consumer gets the item in the logistics, if the package is damaged or it is not the first time to query the password, it means that there is a possibility of malicious replacement by a third party. In this way, malicious behavior by a third party can be well prevented. To be suitable for express delivery, the mechanical password lock should be simple in structure, made of plastic and low in cost. Most of the mechanical combination locks on the market currently have complex structures. For example, the combination locks commonly used on safes have three combination plates connected by a rotating shaft, which requires that the material used for the combination plates must have a certain strength. It is impossible to make such a structure with plastic. Insufficient strength may cause the combination plates to deform, resulting in unreliable use. On the other hand, the combination locks usually on safes are unlocked by rotating the first combination plate to drive the other two combination plates to position. The complexity of the unlocking process is also a problem that cannot be ignored. I have also applied for a patent 2018112930071 for the combination lock core, in which each combination strip is moved through a separately set opening. It also has a complex structure and cannot be made of plastic. It cannot be miniaturized, and the cost is too high and it is not practical. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a mechanical combination lock which has a simple structure, is miniaturized and has low cost and can be made of plastic, and can be suitable for express logistics or anti-counterfeiting outer packaging.

[0004] In order to solve the above technical problems, the basic concept of the present invention is: a circular ring is arranged in the center of the front side of a simple bar-shaped lock body, and a circular code piece is placed in the circular ring, so that the rotation of each circular code piece in the circular ring is relatively reliable, because the two are in large-surface contact, and even if the strength is insufficient, the code piece will not be deformed, resulting in unreliable use. The material requirements for making parts are not high, and the parts can be made of metal or plastic. In order to make the overall structure of the mechanical code lock simple, a positioning piece for positioning with the code slot on the code piece and an unlocking head for unlocking the mechanical code lock are simultaneously arranged on an unlocking body, and the unlocking body can be directly pushed by hand, and a protective cover is used to limit each code piece in the lock. In the lock body, a round hole or a square opening is provided on the front or side of the protective cover, and each code piece extends out a cylinder, a ring or a paddle from the round hole or the square opening in sequence, which is used to paddle the code piece. An unlocking body positioning groove is provided on the protective cover, and the unlocking body is inserted into the lock body along the unlocking body positioning groove, so that the positioning piece on the unlocking body contacts and interacts with the code piece in the lock body. In addition, an unlocking head provided on the unlocking body can extend from other parts of the lock body to interact with the locking body of the mechanical code lock. In this way, only three simple main parts, namely the unlocking body, the lock body and the protective cover, can realize the main functions of the mechanical code lock. Therefore, the mechanical code lock designed in this way can realize a simple and reliable structure, and the parts can be made of plastic.

[0005] Since the mechanical password lock adopts a simple structural design and achieves the purpose of low cost, it is convenient for the mechanical password lock to be used in the logistics and anti-counterfeiting industries. Because in these industries, after the goods in the logistics arrive at the hands of consumers, there is only one chance to open the package, and the number of times the mechanical password lock is used will not be too many. Therefore, such a mechanical password lock can only be used in these industries if it is low in cost and simple in structure. Therefore, in the logistics and anti-counterfeiting industries, the use of packaging with passwords can effectively ensure the integrity of the goods. It can be imagined that when a consumer gets a product with a password package and a product without a password package, the product without the password package, the consumer Consumers may directly remove the packaging, even if there is an anti-counterfeiting query on the packaging, they may not query it. However, the packaging with a password is different. They must scan the code to query and obtain the password before opening the packaging. With the popularization of QR codes, the query process is simple and the unlocking process is simple and interesting. In order to ensure their own food safety or the quality of the goods, most consumers cannot directly destroy the password-carrying packaging in the logistics and take out the items without using the password to open it. This improves the query rate of product anti-counterfeiting, effectively prevents the circulation of counterfeit goods, and well protects the rights and interests of consumers. The above-mentioned mechanical password lock can be provided with an anti-detection rack on the cylindrical surface of each password piece ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0007] Figure 1It is a schematic diagram of the unlocking body, protective cover and lock body structure in the first embodiment of the mechanical combination lock of the present invention.

[0008] Figure 2 It is a schematic diagram of the structure of each code piece in the first embodiment of the mechanical code lock of the present invention.

[0009] Figure 3 Figure a in the figure is a longitudinal sectional view of the unlocking body, protective cover, lock body, unlocking head and flexible locking body after assembly in the first embodiment of the mechanical combination lock of the present invention.

[0010] Figure 3 Figure b is a three-dimensional view of the appearance of the unlocking body, protective cover, lock body, unlocking head and flexible locking body after assembly in the first embodiment of the mechanical password lock of the present invention.

[0011] Figure 4 It is a three-dimensional view of the appearance of the unlocking body, the protective cover, the lock body and the U-shaped lock after being assembled in the second embodiment of the mechanical combination lock of the present invention.

[0012] Figure 5 It is a three-dimensional view of the appearance of a safe after the unlocking body and the protective cover in the third embodiment of the mechanical combination lock of the present invention are assembled.

[0013] Figure 6 It is a three-dimensional view of the appearance of a safe after the unlocking body, the lock body and each code piece in the third embodiment of the mechanical code lock of the present invention are disassembled.

[0014] Figure 7 It is a three-dimensional view of a safe in an open state after the unlocking body and the protective cover in the third embodiment of the mechanical combination lock of the present invention are assembled.

[0015] Figure 8 It is a three-dimensional appearance diagram of the unlocking body and the lock body in the fourth embodiment of the mechanical combination lock of the present invention assembled on a file cabinet.

[0016] Fig. 9 It is a perspective view of the appearance of the unlocking body, the lock body and the protective cover after being disassembled in the fifth embodiment of the mechanical combination lock of the present invention.

[0017] Fig.10 It is a perspective view of the appearance of the unlocking body and each code piece after being decomposed in the fifth embodiment of the mechanical code lock of the present invention.

[0018] Fig.11 It is a three-dimensional appearance diagram of a mechanical combination lock with a clip function, which is assembled from an unlocking body, a lock body, and a protective cover in the fifth embodiment of the mechanical combination lock of the present invention.

[0019] Fig.12 It is a three-dimensional appearance diagram of a mechanical combination lock with a flexible locking body assembled from an unlocking body, a lock body and a protective cover in the first embodiment of the mechanical combination lock of the present invention, and applied to wine packaging.

[0020] Fig.13 It is a three-dimensional appearance diagram of a mechanical combination lock with a clip function assembled from an unlocking body, a lock body, and a protective cover in the fifth embodiment of the mechanical combination lock of the present invention, and used for packaging of goods in logistics.

[0021] Fig.14 It is a schematic diagram of the exploded parts of the unlocking body, lock body, protective cover and protective cover for the anti-theft door handle panel in the sixth embodiment of the mechanical password lock of the present invention.

[0022] Fig.15 It is a front schematic diagram of the sixth embodiment of the mechanical combination lock of the present invention, in which the unlocking body, the lock body, the protective cover and the protective cover for the anti-theft door are assembled and used to protect the lock hole on the handle panel of the anti-theft door.

[0023] Fig.16 It is a three-dimensional diagram of the appearance of the unlocking body, protective cover, lock body, code piece, locking head and flexible locking body in the second technical solution of the mechanical code lock of the present invention after being decomposed. DETAILED DESCRIPTION

[0024] Figures 1 to 31 is a schematic diagram of the structure of the unlocking body 1, the protective cover 2 and the lock body 3 in the first embodiment of the mechanical combination lock of the present invention. The unlocking body 1 is provided with a positioning piece 12 for positioning with the password slot on the password piece and an unlocking head 13 for realizing the unlocking function. The first password piece 101 is provided with a password slot 103 and a cylinder 102 for moving the password piece upward from the disk. The second password piece 201 is provided with a password slot 203 and a second ring 202 for moving the password piece upward from the disk. The third password piece 301 is provided with a password slot 303 and a cylinder 102 for moving the password piece upward from the disk. The third ring 302 is provided with a password dial hole 5 and an unlocking body positioning groove 6 on the protective cover 2. The outer disks of the password pieces have the same diameter. The second ring 202 on the second password piece 201 is sleeved on the cylinder 102 of the first password piece 101. The third ring 302 on the third password piece 301 is sleeved on the second ring 202 of the second password piece 201. The second ring 202, the third ring 302 and the cylinder 102 extend from the password dial hole 5. The password ring 4 on the lock body 3 is provided with a password positioning groove 8. The unlocking body 1 is inserted into the unlocking body positioning groove 6. The positioning piece 12 on the lock is placed in the password positioning groove 8 and is directly opposite to each password piece in the password ring 4. The unlocking head 13 on the unlocking body 1 extends out of the lock body 3 and is covered on the elastic transverse locking body 9. The front end of the transverse locking body 9 is a first barb 10. The unlocking head 13 pulls the transverse locking body 9 to drive the first barb 10 at the front end of the transverse locking body 9 to move back and forth, so that the first barb 10 is separated from the flexible locking body 33, and the unlocking is completed. The lock body 2 and the protective cover 2 are bonded into one; when unlocking, the marking lines set on each password piece are first aligned into a straight line, and all the password pieces are rotated at the same time, so that the innermost first password piece is aligned with the dial (not shown) on the protective cover 3 for positioning, and then the cylinder 102 of the first password piece is pressed and not moved, and the second and third password pieces are rotated at the same time to position the second password piece, and then the first and second password pieces are pressed and not moved, and the third password piece is rotated alone for positioning, so that all the password pieces are positioned. By using the above method for rotation and positioning, although each password piece is placed in the same password ring 4 and contacts each other, it can be easily positioned without interfering with each other.

[0025] Figure 4 It is a stereoscopic view of the appearance of the unlocking body 1, the protective cover 2, the lock body and the U-shaped lock 44 after being assembled in the second embodiment of the mechanical combination lock of the present invention. The internal parts structure is the same as that of the first embodiment. A through hole 22 matching the U-shaped lock 44 is provided on the lock body, and the second barb 55 on the U-shaped lock 44 cooperates with the first barb in the lock body.

[0026] Figure 5 It is a three-dimensional view of the appearance of a safe 333 after the unlocking body 1 and the protective cover 2 in the third embodiment of the mechanical combination lock of the present invention are assembled, and two sets of code piece assemblies are horizontally arranged on the cover 222 of the safe.

[0027] Figure 6 It is a three-dimensional appearance diagram of a safe 333 after the unlocking body 1, the lock body and the code pieces in the third embodiment of the mechanical combination lock of the present invention are disassembled. Two code rings 4 are arranged on the lock body, and two code pieces, a first code piece 101 and a second code piece 102, are placed in each code ring. A code positioning groove is arranged on each code ring 4, and two positioning pieces 12 corresponding to the two groups of code piece assemblies are arranged on the unlocking body 1.

[0028] Figure 7 This is a three-dimensional view of a safe 333 in an open state after the unlocking body 1 and the protective cover 2 in the third embodiment of the mechanical combination lock of the present invention are assembled. Unlocking heads 13 are arranged at the left and right ends of the unlocking body 1 to cooperate with the third barb 666 of the locking body arranged in the safe. When the code slots on each code piece are in the correct position and the positioning piece 12 is inserted into the aligned code slots, the unlocking body 1 can be moved forward, thereby driving the unlocking head 13 to move forward, and the unlocking head 13 is separated from the third barb 666 of the locking body arranged in the safe to complete the unlocking. The protective cover is connected to the lock body through the screw hole 444, and the lid 222 is connected to the safe 333 through a hinge.

[0029] Figure 8 It is a three-dimensional appearance diagram of the unlocking body 1 and the lock body assembled on the file cabinet in the fourth embodiment of the mechanical combination lock of the present invention. The structure of the mechanical combination lock core is roughly the same as that of the third embodiment. The difference is that the unlocking head 13 on the unlocking body 1 is a round pin extending from the front center of the unlocking body 1, which cooperates with the round lock groove 14 on the file cabinet.

[0030] Fig. 9 It is a three-dimensional appearance diagram of the unlocking body 1, lock body 3 and protective cover 3 after decomposition in the fifth embodiment of the mechanical combination lock of the present invention. A positioning piece 12 and an unlocking head 13 bent downward and extended are arranged on the unlocking body 1, auxiliary positioning pieces 15 are arranged on the left and right ends of the unlocking body 1, a password ring 4, a password positioning groove 8 and an auxiliary positioning groove 7 are arranged on the lock body 3, the auxiliary positioning piece 15 is placed in the auxiliary positioning groove 7, an unlocking body positioning groove 6 and a password dial circular hole 5 are arranged on the protective cover 2, and the protective cover 3 is connected to the lock body 2 through a screw hole 444.

[0031] Fig.10 It is a schematic diagram of the decomposition of the unlocking body 1 and the first password piece 101, the second password piece 201 and the third password piece 301 in the fifth embodiment of the mechanical password lock of the present invention. The first password piece 101 is provided with a first password slot 103 and a cylinder 102, the second password piece 201 is provided with a second password slot 203 and a second ring 202, and the third password piece 301 is provided with a third password slot 203 and a third ring 302.

[0032] Fig.11It is a three-dimensional appearance diagram of a mechanical combination lock with a clip 555, which is assembled from an unlocking body 1, a lock body 3, and a protective cover 3 in the fifth embodiment of the mechanical combination lock of the present invention. A locking body long lock groove 16 is provided on the clip 555 to cooperate with the unlocking head 13. When the code grooves on each code piece are in the correct position and the positioning piece 12 is inserted into the aligned code grooves, the unlocking body 1 can be moved forward at this time, thereby driving the unlocking head 13 to retreat and separate from the locking body long lock groove 16 to unlock. The clip 555 is connected to the lock body 3 by a hinge.

[0033] Fig.12 This is a three-dimensional appearance diagram of a mechanical combination lock with a flexible locking function, which is assembled from the unlocking body 1, the lock body 3, and the protective cover 3 in the first embodiment of the mechanical combination lock of the present invention and is used for wine packaging. A soft packaging plastic bag 111 is packaged on the wine bottle, and the opening of the soft packaging plastic bag 111 is locked with a flexible locking body 33. The mechanical combination lock can only be opened by scanning the code to obtain the password, thereby realizing the function of wine anti-counterfeiting.

[0034] Fig.13 This is a three-dimensional appearance diagram of a mechanical combination lock with a clip 555, which is assembled from the unlocking body 1, the lock body 3, and the protective cover 2 in the fifth embodiment of the mechanical combination lock of the present invention and is used for commodity packaging in logistics. A flexible plastic nylon rope 17 is tied to the packaging of the items in logistics, and the clip 555 is used to clamp the knot of the flexible plastic rope 17 to lock it. The mechanical combination lock can only be opened by querying and scanning the code to obtain the password, thereby ensuring the integrity of the items in logistics.

[0035] Fig.14 FIG. 1 is a schematic diagram of the components of the unlocking body 1, the lock body 3, the protective cover 2 and the protective cover 200 for the anti-theft door handle panel in the sixth embodiment of the mechanical password lock of the present invention. The lock core structure is substantially the same as that in the second embodiment, except that the lock core 2 is Figure 4 The lock hole 22 on the lock body 3 in the embodiment is changed into a longitudinal slide groove 18, and a notch 188 is opened at the front end of a protective cover 200 that can cover the original anti-theft door handle, and the size is equivalent to the length of the lock body 3. A row of teeth 100 is arranged on one side of the notch 188 to cooperate with the first barb in the lock body 3. The protective cover is sleeved on the anti-theft door handle panel. To remove the protective cover, only when the password slots on each password piece are in the correct position and the positioning piece 12 is inserted into the aligned password slot, the unlocking body 1 can be moved forward to drive the unlocking head 13 to pull the transverse locking body 9. At this time, the first barb 10 at the front end of the transverse locking body 9 moves back and forth to separate the first barb 10 from the teeth 100, and the unlocking is completed, so that the lock body 3 can be pulled out from the protective cover 200.

[0036] Fig.15 It is a front schematic diagram of the unlocking body 1, the lock body 3, the protective cover 2 and the protective cover 200 used on the handle panel of the anti-theft door in the sixth embodiment of the mechanical combination lock of the present invention.

[0037] Fig.16 It is a perspective view of the appearance of the unlocking body 1, the protective cover 2, the lock body 3, the code pieces, the locking head 13 and the flexible locking body 33 after being decomposed in the second technical solution of the mechanical code lock of the present invention. An unlocking body positioning groove 6 is provided on the protective cover 2. The outer diameters of the code pieces are the same. A paddle 20 is provided on the outer circle of the first code piece 101, and a paddle 20 is provided on the outer circle of the second code piece 201. The second code piece 201 is placed on the first code piece 101. A code positioning groove 8 is provided on the code ring 4 on the lock body 3. A The password dial square mouth 19, the paddles 20 on each password piece extend out of the lock body 3 along the password dial mouth 19, a manually unlocking body 1 is inserted into the unlocking body positioning groove 6, the auxiliary positioning piece 15 is placed in the auxiliary positioning groove on the protective cover 2, and a positioning piece 12 is arranged horizontally on the unlocking body 1. The positioning piece 12 is placed in the password positioning groove 8 facing the password pieces in the password ring 4. A chamfered unlocking head 13 is arranged horizontally at the other end of the unlocking body 1. The unlocking head 13 extends out of the lock body 3 and interacts with a flexible locking body 33 provided on the mechanical password lock.

[0038] The lock body 3 and the protective cover 2 can be fastened together by bonding, welding, pressing, rivets, screws and other methods.

Claims

1. A mechanical combination lock, consisting of a lock body and a protective cover, wherein a circular combination ring is arranged in the lock body, two combination pieces are placed in the combination ring, and a combination slot is arranged on each combination piece, characterized in that: A password dialing circular hole (5) and an unlocking body positioning groove (6) are provided on the protective cover (2); the outer circular disks of the password pieces have the same diameter; a first password piece (101) is provided with a cylinder (102) extending upward from the circular disk; a second password piece (201) is provided with a second circular ring (202) extending upward from the circular disk; the second circular ring (202) of the second password piece (201) is sleeved on the cylinder (102) of the first password piece (101); the second circular ring (202) and the cylinder (102) extend out of the password dialing circular hole (5); and the password on the lock body (3) is provided with a plurality of cylindrical holes (5). The code ring (4) is provided with a password positioning groove (8), a manually operable unlocking body (1) is inserted into the unlocking body positioning groove (6), a positioning piece (12) is arranged transversely on the unlocking body (1), the positioning piece (12) is placed in the password positioning groove (8) and faces each password piece in the password ring (4), an unlocking head (13) is arranged transversely or leftwardly or downwardly on the other end of the unlocking body (1), the unlocking head (13) extends out of one side of the lock (3) and interacts with the locking body arranged on the mechanical password lock, and the lock body (3) and the protective cover (2) are tightly connected.

2. A mechanical combination lock, consisting of a lock body and a protective cover, wherein a circular combination ring is arranged in the lock body, two combination pieces are placed in the combination ring, and a combination slot is arranged on each combination piece, characterized in that: A lock body positioning groove (6) is provided on the protective cover (2), the outer disks of the password pieces have the same diameter, a paddle (20) is provided on the outer circle of the first password piece (101), a paddle (20) is provided on the outer circle of the second password piece (201), the second password piece (201) is placed on the first password piece (101), a password positioning groove (8) is provided on the password ring (4) on the lock body (3), a password dialing square opening (19) is provided on the side of the lock body (3), and the paddles (20) on each password piece are arranged along the password dialing square opening (19). 19) extends out of the lock body (3), a manually operable unlocking body (1) is inserted into the unlocking body positioning groove (6), a positioning piece (12) is arranged transversely on the unlocking body (1), the positioning piece (12) is placed in the password positioning groove (8) and faces each password piece in the password ring (4), an unlocking head (13) is arranged transversely, leftwardly or downwardly on the other end of the unlocking body (1), the unlocking head (13) extends out of one side of the lock body (3) and interacts with the locking body arranged on the mechanical password lock, and the lock body (3) and the protective cover (2) are tightly connected.

3. The mechanical combination lock according to claim 1 or 2, characterized in that: Anti-detection protruding racks are arranged on the outer circumference of each cipher piece.

4. The mechanical combination lock according to claim 1, characterized in that: The number of the code pieces can be increased to more than two, and each of the increased code pieces is provided with a same code slot, and the third code piece (301) is provided with a third ring (302) extending upward from the disc, and the third ring (302) is sleeved on the second ring (202), and similarly the ring of the fourth code piece is sleeved on the ring of the third code piece.

5. The mechanical combination lock according to claim 2, characterized in that: The number of the password pieces can be increased to more than two pieces, and each of the increased password pieces is provided with a similar password slot and a paddle (20), and the third password piece is placed on the second password piece, and similarly the fourth password piece is placed on the third password piece.

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