A luggage lock with high security

Abstract

The present invention provides a luggage lock with high security, which relates to the technical field of luggage locks. It includes two fixed sleeves fixedly installed on the lock body, and two insertion rods are respectively slidably connected in the two fixed sleeves. Two insertion holes corresponding to the insertion rods are opened on the insertion plate. A plurality of inclined grooves are equidistantly opened on the side wall of the fixed sleeve, and a parallel block is slidably connected to each inclined groove. An outer ring is coaxially installed on the insertion rod, and a plurality of transverse rods are respectively installed on the plurality of parallel blocks. This luggage lock innovatively combines a password lock and an insertion-type locking structure. The insertion rod in the fixed sleeve and the insertion hole on the insertion plate form a double locking. At the same time, with the cooperation of the transverse rod and the spacer disc, a multi-level safety protection system is formed, improving the safety performance of the luggage. The lock adopts a unique pressure transmission mechanism, and the unlocking can only be achieved by simultaneously completing the correct pressure application and pulling operation.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage locks, and more specifically, it relates to a luggage lock with high security. Background Art

[0002] In the prior art, the design of luggage locks generally uses password locks as the main security protection mechanism. This single locking method has limitations in daily use. Traditional password locks usually rely only on simple digital combinations for opening and closing control. Their structures are relatively simple, and the passwords are easily observed or tried out by others. Especially in public places or during travel, this design cannot provide sufficient security protection for users' valuables.

[0003] In addition, the design that only relies on password locks for snap connection exposes many security hazards in practical applications. Due to the lack of multiple protection mechanisms, once the password is cracked or the lock is violently pried, the items in the luggage will face the risk of theft. This single security protection method can no longer meet the higher requirements of modern users for the security of luggage, seriously affecting the safety performance of luggage during use and also reducing the sense of security and trust of users when using luggage. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the problems existing in the prior art, the present invention provides a luggage lock with high security to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A luggage lock with high security, including a lock body and a plug board installed on the luggage; it also includes a fixing mechanism. The fixing mechanism includes two fixing sleeves fixedly installed on the lock body, and insertion rods are respectively slidably connected in the two fixing sleeves. Two insertion holes corresponding to the insertion rods are opened on the plug board. A plurality of inclined slots are equidistantly opened on the side walls of the fixing sleeves, and parallel blocks are respectively slidably connected on each inclined slot. An outer ring is coaxially installed on the insertion rod, and a plurality of transverse rods are respectively installed on the plurality of parallel blocks. Transverse holes are opened on the insertion rod, and the transverse rods are slidably connected in the transverse holes; it also includes a follow-up mechanism. The follow-up mechanism includes a pull rod slidably connected in the insertion rod. A follow-up block is installed on the pull rod. A pressing plate is fittingly installed on the fixing sleeve. A pressing rod is installed on the pressing plate. A top plate is fittingly installed on the pressing plate, and the top plate is stuck on the follow-up block. An upper pulling plate is installed on the two top plates. A return spring is sleeved on the pressing rod, and the return spring abuts against the upper pulling plate.

[0008] Preferably, the fixing mechanism further includes a bottom ring fixedly installed inside the fixing sleeve. A plurality of tension springs are installed on the bottom ring, and the plurality of tension springs are respectively connected to the outer ring. This design enables the tension springs to provide continuous pulling force to the outer ring, ensuring that the outer ring always remains in the correct position. At the same time, the fixed installation of the bottom ring provides a stable support point, making the operation of the entire fixing mechanism more reliable.

[0009] Preferably, an embedded groove is coaxially formed on the fixing sleeve. A limiting disk is coaxially installed on the insertion rod, and the limiting disk is stuck in the embedded groove. The pressing plate presses on the limiting disk. Through the cooperation of the embedded groove and the limiting disk, the positioning and limiting functions of the insertion rod are realized. The pressure of the pressing plate on the limiting disk ensures the stability of the entire mechanism during use, preventing accidental loosening or detachment.

[0010] Preferably, the follow-up mechanism further includes spacer disks installed at equal intervals on the pull rod. The distance between two adjacent spacer disks is equal to the distance between two adjacent cross rods, and the distance between two adjacent cross rods is the same as the thickness of the spacer disk. This spacing design ensures that the cross rods can accurately be inserted between the spacer disks to form a reliable mechanical lock, and also ensures the smooth progress of the unlocking process.

[0011] Preferably, a plurality of friction grooves are respectively formed on each cross rod, and an annular groove is respectively formed on the side wall of each spacer disk. The friction grooves are fitted on the annular grooves. Through the ingenious cooperation of the friction grooves and the annular grooves, a large frictional force is generated in the locked state, increasing the difficulty of unauthorized opening. At the same time, this design also improves the stability and reliability of the entire locking mechanism.

[0012] Preferably, a stop disk is installed on the side of the pull rod away from the follow-up block. The stop disk is slidably connected inside the insertion rod. An inner ring is coaxially installed on the inner wall of the insertion rod, and the pull rod is slidably connected to the inner ring. This design of multiple sliding connections ensures the smooth movement of the pull rod. At the same time, through the cooperation of the stop disk and the inner ring, the movement range of the pull rod is effectively controlled, preventing damage to the mechanism caused by excessive movement.

[0013] Preferably, a plurality of stop rods are installed at equal intervals along the axis on the stop disk, and a spring is installed on the stop disk, and the spring abuts against the inner ring. Through the uniform distribution of the stop rods and the elastic action of the spring, the automatic reset function of the stop disk is realized, extending the service life of each component.

[0014] Preferably, rounded corners are respectively provided on the plurality of transverse holes and transverse rods. The design of the rounded corners not only reduces the wear between parts, improves the service life, but also makes the transverse rod more smooth during the insertion and extraction processes, reduces the risk of jamming, and at the same time improves the operation fluency and service life of the entire mechanism.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a luggage lock with high safety, having the following beneficial effects:

[0017] This luggage lock innovatively combines a password lock and an insertion-type locking structure. Through the insertion rod in the fixed sleeve and the insertion hole on the insertion plate to form a double lock, and at the same time, with the cooperation of the transverse rod and the spacer disc, a multi-level safety protection system is formed, enhancing the safety performance of the luggage. The lock adopts a unique pressure transmission mechanism. It is necessary to complete the correct pressure application and pulling operations simultaneously to achieve unlocking. Even if the password is known, it cannot be easily opened. This complex operation requirement effectively prevents others from brute-forcing and randomly opening it. Through the mechanical structure design, the user can complete the complex unlocking action with only one hand, and the other hand can operate the password lock, which not only ensures safety but also provides a convenient user experience and improves practicality. The lock is equipped with a perfect rebound mechanism. Through the synergistic effect of the spring and the tension spring, it ensures that each component can automatically return to the initial position after use, avoiding potential safety hazards caused by components not being reset. A unique limit structure is designed. If the operation method is improper, the lock will automatically activate the protection mechanism, increasing the difficulty of opening. This intelligent anti-misoperation design further enhances the safety of the luggage. All moving parts adopt precise sliding fit and snap connection designs, ensuring the stability and reliability of long-term use. At the same time, the connection between each component adopts an anti-loosening design, improving the firmness of the overall structure. This luggage lock realizes the combination of high safety and convenient operation through innovative mechanical structure design, provides a reliable luggage safety solution for users, enhances the safety performance of the luggage during use, and meets the higher requirements of modern users for the safety of luggage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a luggage lock with high safety in the present invention;

[0019] Figure 2 It is an exploded cross-sectional structure diagram of the lock body, fixed sleeve and insertion plate in the present invention;

[0020] Figure 3 It is a structural diagram of the fixed sleeve and the pressure plate in the present invention;

[0021] Figure 4 It is a cross-sectional structure diagram of the fixed sleeve in the present invention;

[0022] Figure 5 This is a schematic cross-sectional view of the fixed sleeve and the insertion rod in the present invention;

[0023] Figure 6 This is a schematic cross-sectional view of the parallel block and the insertion rod in the present invention;

[0024] Figure 7 This is a schematic view of the structure of the pull rod and the spacer disc in the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the insertion rod in the present invention.

[0026] In the figure: 11, lock body; 12, insertion plate; 21, fixed sleeve; 22, insertion rod; 23, insertion hole; 24, inclined groove; 25, parallel block; 26, outer ring; 27, transverse rod; 28, transverse hole; 29, bottom ring; 31, pull rod; 32, follower block; 33, pressure plate; 34, pressure rod; 35, top plate; 36, upper pull plate; 37, return spring; 38, spacer disc; 39, friction groove; 210, tension spring; 211, embedded groove; 212, limit disc; 310, annular groove; 311, stop disc; 312, inner ring; 313, stop rod; 314, spring; 315, fillet. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0028] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally in the left and right shown in the drawings; "inner, outer" refer to the inner and outer of the contours of the respective components, but the above orientation terms do not limit the present invention.

[0030] Please refer to Figures 1 to 8, A luggage lock with high security, including a lock body 11 and a plug board 12 installed on the luggage; it also includes a fixing mechanism. The fixing mechanism includes two fixing sleeves 21 fixedly installed on the lock body 11, and insertion rods 22 are respectively slidably connected in the two fixing sleeves 21. Two insertion holes 23 corresponding to the insertion rods 22 are opened on the plug board 12. A plurality of inclined slots 24 are equidistantly opened on the side wall of the fixing sleeve 21. A parallel block 25 is slidably connected to each inclined slot 24. An outer ring 26 is coaxially installed on the insertion rod 22. A plurality of transverse rods 27 are respectively installed on the plurality of parallel blocks 25. A transverse hole 28 is opened on the insertion rod 22. The transverse rods 27 are slidably connected in the transverse hole 28. The fixing mechanism also includes a bottom ring 29 fixedly installed in the fixing sleeve 21. A plurality of tension springs 210 are installed on the bottom ring 29. The plurality of tension springs 210 are respectively connected to the outer ring 26. An embedded groove 211 is coaxially opened on the fixing sleeve 21. A limiting disk 212 is coaxially installed on the insertion rod 22. The limiting disk 212 is stuck in the embedded groove 211, and a pressing plate 33 presses on the limiting disk 212.

[0031] When the luggage needs to be used, since the connection between the pressing plate 33, the top plate 35 and the pull rod 31 is detachable, when unlocking and fixing are required, the pressing plate 33 and the top plate 35 need to be used. When not in use, the pressing plate 33 and the top plate 35 are removed, so the safety of use can be improved.

[0032] When the luggage needs to be unlocked, please refer to Figure 3 , First, the pressing plate 33 and the top plate 35 at the upper end are respectively stuck on the pull rod 31, and the upper end face of the top plate 35 fits on the follower block 32. The operator's thumb presses on the pressing plate 33, and then the middle finger and the ring finger are respectively inserted between the upper pull plate 36 and the top plate 35. At this time, when the thumb exerts a downward force, it will apply a downward pressure to the pressure rod 34. Since the pressure rod 34 is connected to the pressing plate 33 and the pressing plate 33 presses on the limiting disk 212, it can ensure that the limiting disk 212 is always stuck in the embedded groove 211 and there is no relative movement between the limiting disk 212 and the embedded groove 211. Then the ring finger and the middle finger exert an upward force to pull the upper pull plate 36 upward. Since the upper pull plate 36 is connected to the top plate 35 and the top plate 35 is stuck on the two follower blocks 32, the two pull rods 31 will be pulled upward. As the two insertion rods 22 are pulled upward synchronously, the connection between the insertion rod 22 and the insertion hole 23 is released, and the password lock is unlocked. At this time, the connection between the plug board 12 and the lock body 11 is released, so the luggage is unlocked. The safety of using the luggage is improved through the connection between the insertion rod 22 and the insertion hole 23.

[0033] Please refer to Figure 4 and Figure 5As the pull rod 31 is pulled upward and the limit plate 212 is stuck in the embedded groove 211, a relative displacement will occur between the pull rod 31 and the insertion rod 22. Since the insertion rod 22 does not move, the transverse rod 27 slidably connected to the transverse hole 28 will not move upward, so the multiple parallel blocks 25 will not move. Since the parallel blocks 25 are slidably connected in the inclined groove 24, the parallel blocks 25 will not slide in the inclined groove 24, and the distance between the multiple transverse rods 27 and the axis of the fixed sleeve 21 will not change. Therefore, the transverse rod 27 will not conflict with the side wall of the spacer plate 38. Since the spring 314 will apply a downward thrust under the action of the spring 314, the stop plate 311 will be pressed against the insertion rod 22, and the parallel block 25 will always be stuck at the lower end of the inclined groove 24 under the action of the tension spring 210, and then the insertion rod 2 After the fixed pull rod 31 is pulled upward, the multiple spacer disks 38 will move upward synchronously, and then the spring 314 will be compressed until the stop rod 313 on the stop disk 311 presses against the inner ring 312. At this time, the spacer disk 38 is just between the two transverse rods 27. At this time, the relative positions between the thumb, middle finger and ring finger are maintained, and then the pull rod 31 is pulled upward. At this time, the stop rod 313 has pressed against the inner disk, so the insertion rod 22 will move upward accordingly, and then the multiple transverse rods 27 will be inserted between the multiple spacer disks 38. With the continued upward movement, the insertion rod 22 will release the connection between the insertion hole 23, thereby completing the unlocking process, and then the operator's other hand unlocks the combination lock, and at this time, the connection between the plug plate 12 and the lock body 11 can be released, and then the process of unlocking the luggage lock is completed.

[0034] Through the cooperation between the top plate 35 and the upper pull plate 36, the two insertion rods 22 can be unlocked by only one hand, and the combination lock and the bag can be unlocked by the other hand. If there is no top plate 35 and the upper pull plate 36, one hand is required to pull the top plate and the other hand is required to press on the limit plate 212. In addition, only one insertion rod 22 is unlocked. Another person is required to unlock the other insertion rod 22 in the same way, and a third person is required to unlock the combination lock before the bag can be unlocked. And if the operator does not know that the limit plate 212 needs to be pressed, this operation will only pull the pull rod 31, which will transmit the thrust to the transverse rod 27 and the parallel block 25 through the spring 314, and make the parallel block 25 slide and shrink along the inclined groove 24. Since there is a friction groove 39 on the transverse rod 27 and an annular groove 310 on the spacer plate 38, when the transverse rod 27 presses against the side wall of the spacer plate 38, it will exert a great friction force to prevent the insertion rod 22 from being unlocked. Therefore, the design of the top plate 35 and the upper pull plate 36 effectively improves the safety of use.

[0035] It further includes a follow-up mechanism. The follow-up mechanism includes a pull rod 31 slidably connected inside the insertion rod 22. A follow-up block 32 is installed on the pull rod 31. A pressing plate 33 is fitted and installed on the fixed sleeve 21. A pressing rod 34 is installed on the pressing plate 33. A top plate 35 is fitted and installed on the pressing plate 33, and the top plate 35 is stuck on the follow-up block 32. An upper pulling plate 36 is installed on the two top plates 35. A return spring 37 is sleeved on the pressing rod 34, and the return spring 37 abuts against the upper pulling plate 36. The follow-up mechanism further includes spacer discs 38 installed on the pull rod 31 at equal intervals. The distance between two adjacent spacer discs 38 is equal to the distance between two adjacent cross bars 27, and the distance between two adjacent cross bars 27 is the same as the thickness of the spacer disc 38. A plurality of friction grooves 39 are respectively formed on each cross bar 27. An annular groove 310 is respectively formed on the side wall of each spacer disc 38. The friction groove 39 is fitted on the annular groove 310. A stop disc 311 is installed on the side of the pull rod 31 away from the follow-up block 32. The stop disc 311 is slidably connected inside the insertion rod 22. An inner ring 312 is coaxially installed on the inner wall of the insertion rod 22. The pull rod 31 is slidably connected on the inner ring 312. A plurality of stop rods 313 are installed on the stop disc 311 at equal intervals along the axis, and a spring 314 is installed on the stop disc 311, and the spring 314 abuts against the inner ring 312. Rounding corners 315 are respectively formed on the plurality of transverse holes 28 and the cross bars 27.

[0036] When it is necessary to lock after unlocking is completed, since at this time the plurality of cross bars 27 are respectively inserted between the plurality of spacer discs 38, the insertion rod 22 will be driven to slide downward under the action of the tension spring 210, and then the parallel block 25 slides on the inclined groove 24 and expands. Therefore, the cross bars 27 will expand and slide between the spacer discs 38 until the cross bars 27 are separated from the position of the spacer discs 38. Under the action of the spring 314, the stop disc 311 will return, and then the spacer discs 38 are again in the plane position of the plurality of cross bars 27, and the insertion rod 22 is also inserted into the insertion hole 23, thus completing the locking process.

[0037] In all the solutions mentioned above, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A luggage lock with high security, comprising a lock body (11) and a plug board (12) installed on the luggage; characterized in that: It further includes a fixing mechanism. The fixing mechanism includes two fixing sleeves (21) fixedly installed on the lock body (11), and insertion rods (22) are respectively slidably connected in the two fixing sleeves (21). Two insertion holes (23) corresponding to the insertion rods (22) are formed on the insertion plate (12). A plurality of inclined slots (24) are equidistantly formed on the side wall of the fixing sleeve (21). A parallel block (25) is slidably connected to each inclined slot (24). An outer ring (26) is coaxially installed on the insertion rod (22). A plurality of transverse rods (27) are respectively installed on the plurality of parallel blocks (25). A transverse hole (28) is formed on the insertion rod (22), and the transverse rod (27) is slidably connected in the transverse hole (28). It further includes a follow-up mechanism. The follow-up mechanism includes a pull rod (31) slidably connected in the insertion rod (22). A follow-up block (32) is installed on the pull rod (31). A pressure plate (33) is fitted and installed on the fixing sleeve (21). A pressure rod (34) is installed on the pressure plate (33). A top plate (35) is fitted and installed on the pressure plate (33), and the top plate (35) is stuck on the follow-up block (32). An upper pull plate (36) is installed on the two top plates (35). A return spring (37) is sleeved on the pressure rod (34), and the return spring (37) abuts against the upper pull plate (36).

2. The safety luggage lock according to claim 1, characterized in that: The fixing mechanism further includes a bottom ring (29) fixedly installed in the fixing sleeve (21). A plurality of tension springs (210) are installed on the bottom ring (29), and the plurality of tension springs (210) are respectively connected to the outer ring (26).

3. The safety luggage lock according to claim 2, characterized in that: An embedded groove (211) is coaxially formed on the fixing sleeve (21). A limit disk (212) is coaxially installed on the insertion rod (22), and the limit disk (212) is stuck in the embedded groove (211), and the pressure plate (33) presses on the limit disk (212).

4. The safety luggage lock according to claim 1, characterized in that: The follow-up mechanism further includes spacer disks (38) installed on the pull rod (31) at equal intervals. The distance between two adjacent spacer disks (38) is equal to the distance between two adjacent transverse rods (27), and the distance between two adjacent transverse rods (27) is the same as the thickness of the spacer disk (38).

5. The safety luggage lock according to claim 4, characterized in that: A plurality of friction grooves (39) are respectively formed on each transverse rod (27). An annular groove (310) is respectively formed on the side wall of each spacer disk (38), and the friction groove (39) is fitted on the annular groove (310).

6. The safety high luggage lock according to claim 5, characterized in that: A stop disk (311) is installed on the side of the pull rod (31) away from the follow-up block (32). The stop disk (311) is slidably connected in the insertion rod (22). An inner ring (312) is coaxially installed on the inner wall of the insertion rod (22), and the pull rod (31) is slidably connected on the inner ring (312).

7. The safety luggage lock according to claim 6, characterized in that: A plurality of stop rods (313) are equidistantly mounted on the stop disk (311) along the axis, a spring (314) is mounted on the stop disk (311), and the spring (314) abuts against the inner ring (312).

8. The safety high luggage lock according to claim 1, characterized in that: Round corners (315) are respectively formed on the plurality of transverse holes (28) and the transverse rods (27).

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