Luggage lock with high safety

Abstract

The invention provides a high-safety luggage lock, and relates to the technical field of luggage locks, the high-safety luggage lock comprises two fixing sleeves fixedly mounted on a lock body, insertion rods are slidably connected in the two fixing sleeves respectively, two insertion holes corresponding to the insertion rods are formed in an insertion plate, a plurality of inclined grooves are formed in the side walls of the fixing sleeves at equal intervals, and the inclined grooves are communicated with the insertion holes. According to the luggage lock, a coded lock and an insertion type locking structure are innovatively combined, double locking is formed through the insertion rod in the fixing sleeve and the insertion hole in the insertion plate, and therefore the luggage lock can be locked through the insertion rod and the insertion hole in the insertion plate; meanwhile, a multi-layer safety protection system is formed through cooperation of the transverse rod and the spacing disc, the safety performance of the luggage is improved, the lock adopts a unique pressure transmission mechanism, and unlocking can be achieved only by completing correct pressure applying and pulling operation at the same time.

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 guessed 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 being stolen. 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 the luggage during use and also reducing the sense of security and trust of users when using the luggage. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at 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.

[0005] (II) Technical Solutions 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 further includes a fixing mechanism. The fixing mechanism includes two fixing sleeves fixedly installed on the lock body, and two 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 wall of the fixing sleeve, and a parallel block is slidably connected to 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. A transverse hole is opened on the insertion rod, and the transverse rods are slidably connected in the transverse hole; it further 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 fitted and installed on the fixing sleeve. A pressing rod is installed on the pressing plate. A top plate is fitted and 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 and installed on the pressing rod, and the return spring abuts against the upper pulling plate.

[0006] 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.

[0007] Preferably, an embedded groove is coaxially provided on the fixing sleeve, a limiting disk is coaxially installed on the insertion rod, the limiting disk is stuck in the embedded groove, and 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, and the pressure of the pressing plate on the limiting disk ensures the stability of the entire mechanism during use, preventing accidental loosening or detachment.

[0008] Preferably, the follower 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 insert between the spacer disks to form a reliable mechanical lock, and at the same time also ensures the smooth progress of the unlocking process.

[0009] Preferably, a plurality of friction grooves are respectively provided on each cross rod, and annular grooves are respectively provided on the side walls 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 abnormal opening. At the same time, this design also improves the stability and reliability of the entire locking mechanism.

[0010] Preferably, a stop disk is installed on the side of the pull rod away from the follower 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.

[0011] 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.

[0012] 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.

[0013] (III) Beneficial effects Compared with the prior art, the present invention provides a luggage lock with high safety, having the following beneficial effects: 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, a dual locking is formed. 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. It is necessary to simultaneously complete the correct pressure application and pulling operations to unlock. Even if the password is known, it cannot be easily opened. This complex operation requirement effectively prevents others from violently cracking 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, ensuring both safety and providing a convenient user experience, improving the 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 non-resetting of components. 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 improves 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, improves the safety performance of the luggage during use, and meets the higher requirements of modern users for the safety of luggage. Description of the drawings

[0014] Figure 1 is a schematic diagram of the overall structure of a luggage lock with high safety in the present invention; Figure 2 is an exploded sectional view structure diagram of the lock body, fixed sleeve and insertion plate in the present invention; Figure 3 is a structural diagram of the fixed sleeve and the pressing plate in the present invention; Figure 4 is a sectional view structure diagram of the fixed sleeve in the present invention; Figure 5 is a sectional view structure diagram of the fixed sleeve and the insertion rod in the present invention; Figure 6 Schematic cross-sectional structure diagram of the parallel block and the insertion rod in the present invention; Figure 7 Schematic structure diagram of the pull rod and the spacer disc in the present invention; Figure 8 Schematic cross-sectional structure diagram of the insertion rod in the present invention.

[0015] 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, rounded corner. Detailed implementation manners

[0016] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0017] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0018] 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 contour of each component itself, but the above orientation terms do not limit the present invention.

[0019] 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. Each inclined slot 24 is respectively slidably connected with a parallel block 25. 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 disc 212 is coaxially installed on the insertion rod 22. The limiting disc 212 is stuck in the embedded groove 211, and a pressing plate 33 presses on the limiting disc 212.

[0020] When using the luggage, 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 are needed. When not in use, the pressing plate 33 and the top plate 35 are removed, so the safety of use can be improved.

[0021] 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 disc 212, it can ensure that the limiting disc 212 is always stuck in the embedded groove 211 and there is no relative movement between the limiting disc 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 continuously pulled upward, they will be pulled upward synchronously, and then 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.

[0022] Please refer to Figure 4 and Figure 5, as the pull rod 31 is pulled upward and the limit disk 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 cross rod 27 slidably connected to the transverse hole 28 will not move upward either. Therefore, the multiple parallel blocks 25 will not move. Since the parallel blocks 25 are slidably connected in the inclined groove 24, if the parallel blocks 25 do not slide in the inclined groove 24, the distance between the multiple cross rods 27 and the axis of the fixed sleeve 21 will not change. Therefore, the cross rod 27 will not contact the side wall of the spacer disk 38. Since under the action of the spring 314, the spring 314 will apply a downward thrust, then the stop disk 311 will abut against the insertion rod 22, and under the action of the tension spring 210, the parallel blocks 25 will always be stuck at the lowermost end of the inclined groove 24. Then, when the insertion rod 22 does not move and the 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 abuts against the inner ring 312. At this time, the spacer disk 38 is exactly between the two cross rods 27. At this time, maintain the relative positions between the thumb, middle finger, and ring finger, and then pull the pull rod 31 upward. At this time, the stop rod 313 has abutted against the inner disk, so the insertion rod 22 will move upward accordingly. Then, the multiple cross rods 27 will be inserted between the multiple spacer disks 38. As the insertion rod 22 continues to move upward, the connection between the insertion rod 22 and the insertion hole 23 will be released, thus completing the unlocking process. Then, the operator's other hand unlocks the password lock. At this time, the connection between the insertion plate 12 and the lock body 11 can be released, and then the process of unlocking the luggage lock is completed.

[0023] Through the cooperation between the top plate 35 and the upper pull plate 36, the unlocking action of the two insertion rods 22 can be completed with only one hand, and the other hand can complete the unlocking of the password lock and the luggage. One person can complete the operation. If there is no top plate 35 and upper pull plate 36, one hand needs to pull the top plate, and the other hand needs to press on the limit disk 212. Moreover, this only unlocks one insertion rod 22. Another person is needed to perform the same unlocking on the other insertion rod 22, and a third person is needed to unlock the password lock before the luggage can be unlocked. And if the operator does not know the operation on the limit disk 212 that needs to be pressed and only pulls the pull rod 31, the thrust will be transmitted to the cross rod 27 and the parallel block 25 through the spring 314, and the parallel block 25 will slide and contract along the inclined groove 24. Since there is a friction groove 39 on the cross rod 27 and an annular groove 310 on the spacer disk 38, when the cross rod 27 abuts against the side wall of the spacer disk 38, a great frictional force will be applied to prevent the unlocking of the insertion rod 22. Therefore, the design of the top plate 35 and the upper pull plate 36 effectively improves the safety of use.

[0024] It further includes a follower mechanism. The follower mechanism includes a pull rod 31 slidably connected inside the insertion rod 22. A follower 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 follower block 32. An upper pull 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 pull plate 36. The follower 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 cross rods 27, and the distance between two adjacent cross rods 27 is the same as the thickness of the spacer disk 38. A plurality of friction grooves 39 are respectively formed on each cross rod 27. An annular groove 310 is respectively formed on the side wall of each spacer disk 38. The friction grooves 39 are fitted on the annular grooves 310. A stop disk 311 is installed on the side of the pull rod 31 away from the follower block 32. The stop disk 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 disk 311 at equal intervals along the axis, and a spring 314 is installed on the stop disk 311, and the spring 314 abuts against the inner ring 312. Rounded corners 315 are respectively formed on the plurality of transverse holes 28 and the cross rods 27.

[0025] When it is necessary to lock after unlocking is completed, since at this time the plurality of cross rods 27 are respectively inserted between the plurality of spacer disks 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 will slide on the inclined groove 24 and expand. Therefore, the cross rods 27 will expand and slide between the spacer disks 38 until the cross rods 27 are disengaged from the position of the spacer disks 38. Under the action of the spring 314, the stop disk 311 will return, and then the spacer disks 38 are again in the plane position of the plurality of cross rods 27, and the insertion rod 22 is also inserted into the insertion hole 23, thus completing the locking process.

[0026] In all the above-mentioned solutions, 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 principles 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 plate (12) mounted on the luggage; the characteristics are: The lock body (11) further comprises a fixing mechanism, wherein the fixing mechanism comprises two fixing sleeves (21) fixedly mounted on the lock body (11), and the two fixing sleeves (21) are respectively slidably connected with an insertion rod (22), the plug plate (12) is provided with two insertion holes (23) corresponding to the insertion rod (22), a plurality of inclined grooves (24) are evenly spaced on the side wall of the fixing sleeve (21), a parallel block (25) is respectively slidably connected to each of the inclined grooves (24), an outer ring (26) is coaxially mounted on the insertion rod (22), a plurality of transverse rods (27) are respectively mounted on the plurality of parallel blocks (25), a transverse hole (28) is formed on the insertion rod (22), and the transverse holes (28) are respectively arranged on the insertion rod (22). The rod (27) is slidably connected in the transverse hole (28); it also includes a follower mechanism, which includes a pull rod (31) slidably connected in the insertion rod (22), a follower block (32) is installed on the pull rod (31), a pressure plate (33) is fitted on the fixed sleeve (21), a pressure rod (34) is installed on the pressure plate (33), a top plate (35) is fitted on the pressure plate (33), and the top plate (35) is clamped on the follower 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) contacts the upper pull plate (36).

2. A high-security luggage lock according to claim 1, characterized in that: The fixing mechanism further comprises a bottom ring (29) fixedly mounted inside the fixing sleeve (21), a plurality of tension springs (210) being mounted on the bottom ring (29), and the plurality of tension springs (210) being respectively connected to the outer ring (26).

3. A high-security luggage lock according to claim 2, characterized in that: An embedded groove (211) is coaxially provided on the fixing sleeve (21), a limiting plate (212) is coaxially mounted on the insertion rod (22), the limiting plate (212) is clamped in the embedded groove (211), and the pressing plate (33) is pressed on the limiting plate (212).

4. A high-security luggage lock according to claim 1, characterized in that: The follower mechanism further comprises spacer plates (38) mounted on the pull rod (31) at equal intervals, the distance between two adjacent spacer plates (38) being equal to the distance between two adjacent transverse rods (27), and the distance between two adjacent transverse rods (27) being equal to the thickness of the spacer plates (38).

5. A high-security luggage lock according to claim 4, characterized in that: A plurality of friction grooves (39) are respectively formed on each of the transverse rods (27), and an annular groove (310) is respectively formed on the side wall of each of the spacer discs (38), wherein the friction grooves (39) are fitted on the annular grooves (310).

6. A high-security 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 follower block (32), and the stop disk (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), and the pull rod (31) is slidably connected to the inner ring (312).

7. A high-security luggage lock according to claim 6, characterized in that: A plurality of stop rods (313) are installed on the stop disk (311) at equal intervals along the axis, and a spring (314) is installed on the stop disk (311), and the spring (314) abuts against the inner ring (312).

8. The high-security luggage lock according to claim 1 is characterized in that: The plurality of transverse holes (28) and the transverse rod (27) are respectively provided with rounded corners (315).

Images