Password folding lock

Abstract

The utility model relates to a password folding lock, in particular to a mistakenly-opened password folding lock which comprises a main body provided with a password component, a lock rod matched with the password component for unlocking and locking is arranged in the main body, a plurality of connecting rods are arranged on one side of the main body, the connecting rods at the tail end are rotationally connected to the main body, and the password component is arranged on the main body. The connecting rod at the head end is inserted into the main body in a pulling mode to form a lock ring used for being locked on a carrier, the main body is provided with a lock groove which is used for the connecting rod to enter and exit and is matched with the lock rod, and a first spring structure which always forces the lock rod to stretch into the lock groove is arranged in the main body. The spring is arranged on the lock rod, so that the lock rod always clamps the connecting rod no matter whether a password is correct or not, unlocking can be achieved only by pressing the lock rod, the connecting rod can be locked when the password is forgotten to be disordered, the concealment of the lock state is protected, and the lock has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

Description

Technical Field

[0001] This utility model relates to a combination folding lock, and more particularly to a combination folding lock that is accidentally opened. Background Technology

[0002] Combination folding locks are commonly used to lock bicycles. However, the lock lever on the market will pop open directly after the combination is correct. This is also the case with the patent application number 202121719091.6, entitled "A Convenient Folding Combination Lock". How to prevent the lock lever from popping open directly regardless of whether the combination is correct or not is the technical problem we need to solve now. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a combination folding lock.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a combination folding lock, characterized in that it includes a main body equipped with a combination component, a locking rod inside the main body for unlocking and locking in conjunction with the combination component, a plurality of connecting rods hinged together on one side of the main body, the connecting rod at the tail end being rotatably connected to the main body, the connecting rod at the head end being inserted into the main body to form a locking ring for locking onto a carrier, the main body having a locking groove for the connecting rods to enter and exit and for cooperating with the locking rod, and a first spring structure inside the main body that always forces the locking rod to extend into the locking groove.

[0005] The upper part of the locking bar is provided with a pressing part for easy unlocking by pushing the locking bar, and the locking bar and the pressing part are an integral structure.

[0006] The bottom of the pressing part is provided with connecting posts on both sides, and a through hole is formed between the two connecting posts to connect the locking groove and allow the connecting rod to pass through.

[0007] The locking rod is provided with a guide surface at a position relative to the mating link to facilitate locking of the link.

[0008] The main body has a male rod for assembling the password component and for the reciprocating movement of the locking bar. The main body also has a groove for installing the male rod. The male rod has a groove for the reciprocating movement of the pressing part. The groove wall has a fixing block to prevent the pressing part from dislodging from the groove. The side of the male rod has a first limiting groove that communicates with the groove and allows the fixing block to reciprocate. The pressing part achieves limited reciprocating movement within the groove through the cooperation of the fixing block and the first limiting groove.

[0009] The bottom of the male rack is provided with a guide post for the reciprocating movement of the locking rod. The locking rod is provided with a protrusion for unlocking and locking. The side of the guide post is provided with a groove that matches the protrusion. The password assembly includes an outer password wheel and an inner password wheel that are linked and cooperate. The outer password wheel and the inner password wheel are sleeved on the outside of the guide post. The inner password wheel is provided with a slot that matches the protrusion for unlocking. In the unlocked state, the projection surface of the protrusion coincides with the slot.

[0010] The outer cipher wheel has a limiting hole for linkage with the inner cipher wheel, and the side of the inner cipher wheel has a protrusion that matches the limiting hole. The outer cipher wheel and the inner cipher wheel are linked by the cooperation of the limiting hole and the protrusion.

[0011] One side of the inner code wheel is provided with an inner wheel, which is sleeved on the outside of the guide post. The outer side of the guide post is provided with a recessed part to prevent relative rotation between the inner wheel and the guide post. The inner side of the inner wheel is provided with an arched part that matches the recessed part. The inner wheel achieves a limited reciprocating motion on the guide post through the cooperation of the recessed part and the arched part.

[0012] The first spring structure is located between the inner wheel and the male wheel. The inner side of the outer code wheel is provided with several second limiting grooves arranged in a ring with the axial direction of the outer code wheel as the center. The outer side of the inner wheel is provided with spring arms that cooperate with the second limiting grooves. The outer code wheel and the inner wheel switch the positions of different second limiting grooves through the spring arms to form a gear-type rotational cooperation.

[0013] The bottom of the locking rod is provided with a code adjustment button for pushing the inner code wheel. The main body is provided with a mounting hole for the code adjustment button to reciprocate. The code adjustment button is provided with a guide groove for the locking rod to reciprocate. The guide groove is provided with a second spring structure that forces the code adjustment button away from the inner code wheel. The inner code wheel disengages from the outer code wheel through the cooperation of the code adjustment button to achieve code adjustment.

[0014] The beneficial effects of this utility model are as follows: This utility model redesigns the locking rod inside the lock body. A spring is set on the locking rod so that the locking rod will always lock the connecting rod regardless of whether the password is correct or not. The lock can only be opened by pressing the locking rod. Even if the password is forgotten, the connecting rod will still be locked, which protects the concealment of the lock's state. This utility model also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the male row of this utility model. Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the structure of the male row of this utility model. Figure 2 ;

[0021] Figure 7 This is a schematic diagram of the locking rod of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the fixing block of this utility model;

[0023] Figure 9 This is an exploded view of the cryptographic component of this utility model;

[0024] Figure 10 This is a schematic diagram of the internal password wheel of this utility model;

[0025] Figure 11 This is a schematic diagram of the structure of the present invention when the locking ring is formed. Detailed Implementation

[0026] like Figures 1-11 As shown, a combination folding lock includes a main body 200 equipped with a combination component 100. The main body 200 contains a locking rod 210 that cooperates with the combination component 100 for unlocking and locking. One side of the main body 200 has several connecting rods 300 that are hinged together. The tail end of the connecting rod 300 is rotatably connected to the main body 200, and the head end of the connecting rod 300 forms a locking ring 310 for locking onto a carrier by being inserted into the main body 200. The main body 200 has a locking groove 220 for the connecting rods 300 to enter and exit and cooperate with the locking rod 210. The main body 200 contains a first spring structure 230 that always forces the locking rod 210 into the locking groove 220. The addition of the first spring structure 230 ensures that the locking rod 210 remains inserted into the locking groove 220, preventing the connecting rods 300 from being pulled out. The carrier generally refers to a bicycle or other means of transportation. Specific usage methods are described below.

[0027] The upper part of the locking rod 210 is provided with a pressing part 211 for easy unlocking by pushing the locking rod 210. The locking rod 210 and the pressing part 211 are integrated structures. The pressing part 211 is easy to operate by hand. The integrated structure of the locking rod 210 and the pressing part 211 makes the structure more robust, easier to process, easier to assemble, and more practical.

[0028] The bottom of the pressing part 211 is provided with connecting posts 212 on both sides. A through hole 213 is formed between the two connecting posts 212 to connect the locking groove 220 and allow the connecting rod 300 to pass through. The arrangement of the two connecting posts 212 makes the through hole 213 located in the center, which makes the structure stable and the pressing smoother.

[0029] The locking rod 210 is provided with a guide surface 214 at a position relative to the connecting rod 300 to facilitate locking of the connecting rod 300. With the addition of the guide surface 214, when the connecting rod 300 is inserted into the through hole 213, there is no need to press the pressing part 211. The connecting rod 300 will cause the locking rod 210 to move up and down until the connecting rod 300 is locked into the main body 200.

[0030] The main body 200 has a male rod 400 for assembling the password component 100 and for the reciprocating movement of the locking rod 210. The main body 200 also has a groove 240 for mounting the male rod 400. The male rod 400 has a groove 410 for the reciprocating movement of the pressing part 211. The groove wall of the groove 410 has a fixing block 420 to prevent the pressing part 211 from disengaging from the groove 410. The side of the male rod 400 has a first limiting groove 430 that communicates with the groove 410 and allows the fixing block 420 to reciprocate. The pressing part 211... The locking rod 210 is installed by the cooperation of the fixing block 420 and the first limiting groove 430 to achieve the limited reciprocating motion in the groove 410. When installing the locking rod 210, the locking rod 210 is inserted into the male row 400, and then the fixing blocks 420 on both sides are installed. The male row 400 is fixed in the main body 200 by the round pin 450. The fixing block 420 is provided with a stop part 421, and the connecting column 212 is provided with a stop part 216 that cooperates with the stop part 421. The fixing block 420 and the locking rod 210 are linked by the cooperation of the stop part 421 and the stop part 216.

[0031] The bottom of the male bar 400 is provided with a guide post 440 for the reciprocating movement of the locking rod 210. The locking rod 210 is provided with a protrusion 215 for unlocking and locking. The side of the guide post 440 is provided with a groove 441 that matches the protrusion 215. The password assembly 100 includes an outer password wheel 110 and an inner password wheel 120 that are linked together. The outer password wheel 110 and the inner password wheel 120 are sleeved on the guide post 440. The inner password wheel 120 is provided with a slot 121 that matches the protrusion 215 for unlocking. In the unlocked state, the projection surface of the protrusion 215 coincides with the slot 121. When all the slots 121 on the inner password wheels 120 correspond to the protrusion 215, the locking rod 210 can move freely up and down, which means it has entered the unlocked state. When the inner password wheel 120 is stuck on the protrusion 215, it is in the locked state, and the locking rod 210 cannot move freely.

[0032] The outer code wheel 110 is provided with a limiting hole 111 for linkage with the inner code wheel 120. The side of the inner code wheel 120 is provided with a protrusion 122 that cooperates with the limiting hole 111. The outer code wheel 110 and the inner code wheel 120 are linked through the cooperation of the limiting hole 111 and the protrusion 122.

[0033] The inner code wheel 120 has an inner wheel 130 on one side, which is sleeved on the guide post 440. The outer side of the guide post 440 has a recess 442 to prevent relative rotation between the inner wheel 130 and the guide post 440. The inner side of the inner wheel 130 has an arched part 131 that matches the recessed part 442. The inner wheel 130 achieves a limited reciprocating motion on the guide post 440 through the cooperation of the recessed part 442 and the arched part 131. The addition of the inner wheel 130 mainly provides sound feedback when the outer code wheel 110 rotates. Due to the cooperation of the recessed part 442 and the arched part 131, the inner wheel 130 is sleeved on the outside of the guide post 440 and does not rotate relative to the guide post 440. However, the inner wheel 130 can move up and down along the outside of the guide post 440.

[0034] The first spring structure 230 is disposed between the inner wheel 130 and the male row 400. The inner side of the outer code wheel 110 is provided with a plurality of second limiting grooves 112 arranged in a ring with the axial direction of the outer code wheel 110 as the center. The outer side of the inner wheel 130 is provided with spring arms 132 that cooperate with the second limiting grooves 112. The outer code wheel 110 and the inner wheel 130 switch the positions of different second limiting grooves 112 through the spring arms 132 to form a gear-type rotational cooperation. The spring arms 132 have elastic restoring force. When the second limiting grooves 112 are switched by the spring arms 132, a collision occurs and a sound is generated.

[0035] The bottom of the locking rod 210 is provided with a code adjustment button 500 for pushing the inner code wheel 120. The main body 200 is provided with a mounting hole 250 for the code adjustment button 500 to reciprocate. The code adjustment button 500 is provided with a guide groove 510 for the locking rod 210 to reciprocate. The guide groove 510 is provided with a second spring structure 520 that forces the code adjustment button 500 away from the inner code wheel 120. The inner code wheel 120 is disengaged from the outer code wheel 110 by the cooperation of the code adjustment button 500 to achieve code adjustment.

[0036] How to use:

[0037] First, the outer combination wheel 110 and the inner combination wheel 120 are linked. When the combination is correct, all the slots 121 on the inner combination wheel 120 correspond to the protrusions 215 on the locking rod 210, so the locking rod 210 can move. Due to the presence of the first spring structure 230, the locking rod 210 still extends into the lock groove 220 to pull the connecting rod 300. At this time, pressing the pressing part 211 releases the connecting rod 300. At this time, unfolding the connecting rod 300 can lock the bicycle. Release the locking rod 210 and scramble the combination again. When it is necessary to fold and store, simply insert the connecting rod 300 back into the lock groove 220. The presence of the guide surface 214 causes the locking rod 210 to move downward temporarily. When the connecting rod 300 is inserted into place, the first spring structure 230 causes the locking rod 210 to lock the connecting rod 300 again, waiting for the next use.

[0038] Code switching method:

[0039] When the password is incorrect, the inner password wheel 120 will be blocked by the locking lever 210. Therefore, when the password is correct, press and hold the code adjustment button 500. The code adjustment button 500 will cause the inner password wheel 120 to move and disengage from the outer password wheel 110. At this time, adjust the outer password wheel 110 to set a new password. After adjusting the password, release the code adjustment button 500. Under the action of the second spring structure 520, the code adjustment button 500 will reset.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A cryptographic folding lock, characterized in that, The application relates to a lock device, which comprises a main body (200) provided with a password assembly (100), a lock rod (210) for unlocking and locking the password assembly (100) in the main body (200), a plurality of connecting rods (300) hingedly connected between adjacent connecting rods (300), a tail-end connecting rod (300) rotationally connected to the main body (200), a head-end connecting rod (300) provided with a locking ring (310) for locking a carrier and inserted into the main body (200), a lock slot (220) for the connecting rod (300) to enter and exit and matched with the lock rod (210) on the main body (200), and a first spring structure (230) for always forcing the lock rod (210) to extend into the lock slot (220) in the main body (200).

2. A cryptographic folding lock as claimed in claim 1, characterized in that The upper portion of the lock rod (210) is provided with a pressing portion (211) for conveniently pushing the lock rod (210) to be unlocked, and the lock rod (210) and the pressing portion (211) are in an integrated structure.

3. A cryptographic folding lock as claimed in claim 2, characterized in that The two sides of the bottom of the pressing portion (211) are provided with connecting columns (212), and a through hole (213) for communicating the lock slot (220) and allowing the connecting rod (300) to pass through is formed between the two connecting columns (212).

4. A cryptographic folding lock as claimed in claim 3, characterized in that The lock rod (210) is provided with a guide surface (214) for conveniently guiding the connecting rod (300) to be locked at a position matched with the connecting rod (300).

5. A cryptographic folding lock as claimed in claim 3, characterized in that, The main body (200) is provided with a male row (400) for assembling the password assembly (100) and allowing the lock rod (210) to reciprocate, the main body (200) is provided with a type slot (240) for mounting the male row (400), the male row (400) is provided with a recess (410) for allowing the pressing portion (211) to reciprocate, the groove wall of the recess (410) is provided with a fixing block (420) for preventing the pressing portion (211) from separating from the recess (410), the side portion of the male row (400) is provided with a first limiting slot (430) in communication with the recess (410) and allowing the fixing block (420) to reciprocate, and the pressing portion (211) is limited to reciprocate in the recess (410) through cooperation of the fixing block (420) and the first limiting slot (430).

6. A cryptographic folding lock as claimed in claim 5, characterized in that The bottom of the male row (400) is provided with a guide column (440) for allowing the lock rod (210) to reciprocate, the lock rod (210) is provided with a convex strip (215) for unlocking and locking, the side portion of the guide column (440) is provided with a cutting groove (441) matched with the convex strip (215), the password assembly (100) comprises a linkage matched outer password wheel (110) and inner password wheel (120), the outer password wheel (110) and the inner password wheel (120) are sleeved outside the guide column (440), the inner password wheel (120) is provided with a clamping groove (121) matched with the convex strip (215) for unlocking, and the projection surface of the convex strip (215) is coincident with the clamping groove (121) in the unlocking state.

7. A cryptographic folding lock as claimed in claim 6, characterized in that The outer code wheel (110) is provided with a limiting hole (111) for linkage of the inner code wheel (120), the side of the inner code wheel (120) is provided with a protrusion (122) matched with the limiting hole (111), and the outer code wheel (110) and the inner code wheel (120) are linked through cooperation of the limiting hole (111) and the protrusion (122).

8. A cryptographic folding lock as claimed in claim 6, characterized in that, One side of the inner code wheel (120) is provided with an inner wheel (130), the inner wheel (130) is sleeved outside the guide column (440), the outer side of the guide column (440) is provided with a recessed part (442) for preventing relative rotation between the inner wheel (130) and the guide column (440), the inner side of the inner wheel (130) is provided with an arch part (131) matched with the recessed part (442), and the inner wheel (130) is limited to reciprocating movement on the guide column (440) through cooperation of the recessed part (442) and the arch part (131).

9. A cryptographic folding lock as claimed in claim 8, characterized in that, The first spring structure (230) is arranged between the inner wheel (130) and the male row (400), the inner side of the outer code wheel (110) is provided with a plurality of second limiting grooves (112) arranged in a ring array with the axial direction of the outer code wheel (110) as the center, the outer side of the inner wheel (130) is provided with a spring arm (132) matched with the second limiting groove (112), and the outer code wheel (110) and the inner wheel (130) are switched to different positions of the second limiting groove (112) through the spring arm (132) to form gear type rotation cooperation.

10. A cryptographic folding lock as claimed in claim 6, characterized in that, The bottom of the lock rod (210) is provided with a code adjusting button (500) for pushing the inner code wheel (120), the main body (200) is provided with a mounting hole (250) for reciprocating movement of the code adjusting button (500), the code adjusting button (500) is provided with a guide groove (510) for reciprocating movement of the lock rod (210), the guide groove (510) is provided with a second spring structure (520) for forcing the code adjusting button (500) to move away from the inner code wheel (120), and the inner code wheel (120) is adjusted by being separated from the outer code wheel (110) through cooperation of the code adjusting button (500).

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