Linkage box lock structure and suitcase

Abstract

The utility model discloses a linkage box lock structure and a suitcase, and belongs to the technical field of locks. The linkage box lock structure comprises a plurality of lock hooks, a driving assembly and a plurality of first driven assemblies. The lock hooks are arranged on the box cover or the box body at intervals; the driving assembly comprises a first lock shell, a rotating wheel and a driving spring bolt, the rotating wheel is rotatably arranged on the first lock shell, the driving spring bolt is slidably arranged on the first lock shell, and the rotating wheel and the driving spring bolt are in transmission connection through a transmission part; each first driven assembly comprises a second lock shell, a first driven spring bolt, a first transmission rope and a first elastic piece, the first driven spring bolts are arranged on the second lock shells in a sliding mode, the two ends of the first transmission ropes are connected with the driving spring bolts and the corresponding first driven spring bolts respectively, and the first elastic pieces are clamped between the first driven spring bolts and the second lock shells. According to the linkage box lock structure provided by the embodiment of the utility model, not only can multi-point linkage locking between the box body and the box cover be realized, but also more labor can be saved.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, specifically relating to a linkage box lock structure and a suitcase. Background Technology

[0002] Suitcases are used for carrying luggage when traveling, business trips, or other long-distance journeys. Suitcases have a large capacity, making it convenient to carry personal items, and they can be dragged, effectively reducing the burden of carrying personal belongings. Currently, suitcases mainly consist of a body, a lid, and a lock mechanism. The body and lid are hinged on one side, and locked on the other side by a lock mechanism, thus allowing the lid to be opened and closed.

[0003] However, existing luggage lock structures typically only provide single-point locking, leading to uneven stress on the suitcase and potential damage. Furthermore, these locks primarily unlock via a sliding mechanism, requiring significant pushing force and making them inconvenient for consumers. Utility Model Content

[0004] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a linkage lock structure and suitcase, the purpose of which is to not only quickly realize multi-point linkage locking between the suitcase body and the lid, but also to save effort and make it more convenient for consumers to use.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a linkage box lock structure, which includes multiple locking hooks, an active component, and multiple first driven components;

[0006] Multiple locking hooks are spaced apart on the lid or body of the box;

[0007] The active component includes a first lock housing, a rotating wheel, and an active locking tongue. The first lock housing is used to fix it to the box body or box cover. The rotating wheel is rotatably arranged on the first lock housing. The active locking tongue is slidably arranged on the first lock housing. The rotating wheel and the active locking tongue are connected by a transmission component to drive the active locking tongue to slide and hook into the corresponding lock hook.

[0008] Multiple first driven components are arranged at intervals. Each first driven component includes a second lock housing, a first driven bolt, a first transmission rope, and a first elastic element. The second lock housing is used to fix it to the box body or box cover. The first driven bolt is slidably arranged on the second lock housing. The two ends of the first transmission rope are respectively connected to the driving bolt and the corresponding first driven bolt, so as to drive the first driven bolt to slide and hook with the corresponding lock hook. The first elastic element is sandwiched between the first driven bolt and the second lock housing, and the first elastic element drives the first driven bolt to reset.

[0009] Optionally, the transmission component is a push column, which is located on the rotating wheel and parallel to the rotation axis of the rotating wheel. The active locking tongue is provided with a guide groove, and the push column is movably inserted into the guide groove, with the push column and the guide groove having a clearance fit.

[0010] Optionally, the active locking tongue includes a transmission part and a locking tongue part, the transmission part and the locking tongue part are fixedly connected and can be slidably arranged on the first lock housing, the guide groove is located on the transmission part, and the locking tongue part is used to hook the corresponding locking hook.

[0011] Optionally, the linkage lock structure further includes a second driven component and a rotating arm;

[0012] The second driven component includes a third lock housing, a second driven latch, a second transmission rope, and a second elastic element. The third lock housing is used to fix it to the box or box cover. The second driven latch is slidably arranged on the third lock housing. The two ends of the second transmission rope are respectively connected to the second driven latch and one end of the rotating arm to drive the second driven latch to slide and hook onto the corresponding lock hook. The second elastic element is clamped between the second driven latch and the third lock housing, and the second elastic element drives the second driven latch to reset.

[0013] The rotating arm is rotatably arranged on the third lock housing, and the other end of the rotating arm is movably inserted into the transmission part. The rotating arm and the locking tongue are located on both sides of the rotating wheel, and the third lock housing is arranged parallel to at least one second lock housing.

[0014] Optionally, the transmission component includes a driving tooth and a driven tooth that mesh with each other, the driving tooth being sleeved on the rotating wheel, and the driven tooth being located on the driving locking tongue.

[0015] Optionally, a support plate is fixedly mounted on the first lock housing, and the rotating wheel is rotatably arranged on the support plate.

[0016] Optionally, the support plate has a positioning groove, and the rotating wheel has an elastic protrusion. The elastic protrusion is movably inserted into the positioning groove, and when the active locking tongue and the first driven locking tongue are respectively hooked with the corresponding locking hooks, the elastic protrusion is inserted into the positioning groove.

[0017] Optionally, the linkage lock structure further includes two box frames, one of which is fixed to the inner wall of the box and the other is fixed to the inner wall of the box cover. The first lock shell, multiple second lock shells, and multiple lock hooks can all be detachably installed on the corresponding box frames.

[0018] Optionally, the linkage lock structure further includes multiple rope loops, with both ends of each rope loop fixed to the first lock housing and the corresponding second lock housing, and each rope loop sleeved on the corresponding first transmission rope.

[0019] Secondly, this utility model provides a suitcase, which includes a linkage lock structure as described in the first aspect.

[0020] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0021] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0022] In the linkage lock structure provided by this embodiment of the utility model, when it is necessary to lock the suitcase body and lid, the lid is first placed on the suitcase body (at this time, the latches and corresponding hooks are horizontally misaligned). Then, the rotating wheel is rotated. During the rotation of the wheel, the active latch is moved laterally through the transmission component. During the lateral movement of the active latch, the first driven latch is pulled laterally through the first transmission rope (at this time, the first elastic element is compressed). This allows each latch to engage with the hook after lateral movement, achieving multi-point linkage locking and effectively avoiding the problem of uneven force on the suitcase and damage. In addition, when the wheel rotates, the force is applied to the wheel and forms a lever arm corresponding to the rotation axis of the wheel, which saves more effort and avoids the problem of excessive pushing force caused by using a sliding unlocking method.

[0023] Similarly, when it is necessary to unlock the box and lid, the wheel is rotated in the opposite direction, causing the active locking tongue to move laterally and reset, thereby disengaging the active locking tongue from the corresponding locking hook. Furthermore, during the reset of the active locking tongue, the first transmission rope slackens, and the elastic force of the first elastic element drives the corresponding first driven locking tongue to reset, thus ultimately unlocking all locking tongues and hooks simultaneously, at which point the box lid can be opened.

[0024] In other words, the linkage lock structure provided by this utility model embodiment can not only quickly realize multi-point linkage locking between the box body and the box lid, but also save more effort and is more convenient for consumers to use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a linkage box lock structure provided in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the active component provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first driven component provided in an embodiment of the present invention;

[0028] Figure 4 This is an assembly diagram of the wheel and support plate provided in an embodiment of the present invention.

[0029] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0030] 1. Lock hook; 2. Active component; 21. First lock housing; 211. Support plate; 22. Rotary wheel; 23. Active locking tongue; 231. Transmission part; 2311. Groove; 232. Lock tongue part; 2321. Protrusion; 233. Guide groove; 24. Push column; 3. First driven component; 31. Second lock housing; 32. First driven locking tongue; 33. First transmission rope; 34. First elastic element; 4. Second driven component; 5. Rotating arm; 6. Box frame; 7. Rope loop. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Example:

[0037] Figure 1 This is a structural diagram of a linkage lock structure provided in an embodiment of this utility model, as shown below. Figure 1 As shown, the linkage box lock structure includes multiple locking hooks 1, an active component 2, and multiple first driven components 3.

[0038] Multiple locking hooks are spaced apart on the lid or body of the box.

[0039] Figure 2 This is a schematic diagram of the structure of the active component provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the active component 2 includes a first lock housing 21, a rotating wheel 22, and an active locking tongue 23. The first lock housing 21 is fixed to the box body or box cover. The rotating wheel 22 is rotatably arranged on the first lock housing 21. The active locking tongue 23 is slidably arranged on the first lock housing 21. The rotating wheel 22 and the active locking tongue 23 are connected by a transmission component to drive the active locking tongue 23 to slide and hook with the corresponding locking hook 1.

[0040] Figure 3 This is a schematic diagram of the structure of the first driven component provided in an embodiment of the present invention, as shown below. Figure 3As shown, multiple first driven components 3 are arranged at intervals. Each first driven component 3 includes a second lock housing 31, a first driven latch 32, a first transmission rope 33, and a first elastic element 34. The second lock housing 31 is used to fix it to the box body or box cover. The first driven latch 32 is slidably arranged on the second lock housing 31. The two ends of the first transmission rope 33 are respectively connected to the active latch 23 and the corresponding first driven latch 32, so as to drive the first driven latch 32 to slide and hook with the corresponding lock hook 1. The first elastic element 34 is sandwiched between the first driven latch 32 and the second lock housing 31. The first elastic element 34 drives the first driven latch 32 to reset.

[0041] Specifically, when the first lock housing 21 and the second lock housing 31 are located on the box body, the lock hook 1 is located on the box cover; when the first lock housing 21 and the second lock housing 31 are located on the box cover, the lock hook 1 is located on the box body, that is, the lock housing and the lock hook 1 are arranged separately.

[0042] In the case of the linkage lock structure provided in this embodiment of the utility model, when it is necessary to lock the case body and the lid, the lid is first placed on the case body (at this time, each locking tongue and the corresponding locking hook 1 are horizontally misaligned). Then, the rotating wheel 22 is rotated. During the rotation of the rotating wheel 22, the active locking tongue 23 is driven to move laterally through the transmission component. During the lateral movement of the active locking tongue 23, the first driven locking tongue 32 is pulled laterally through the first transmission rope 33 (at this time, the first elastic element 34 is compressed). This allows each locking tongue to engage the locking hook after lateral movement, realizing multi-point linkage locking and effectively avoiding the problem of damage caused by uneven force on the suitcase. In addition, when the rotating wheel 22 is rotated, since the force is applied to the rotating wheel 22 and a lever arm is formed corresponding to the rotation axis of the rotating wheel 22, it is more labor-saving and avoids the problem of excessive pushing force caused by using the sliding method to unlock.

[0043] Similarly, when it is necessary to unlock the box body and lid, the rotating wheel 22 is rotated in the opposite direction, causing the active locking tongue 23 to move laterally and reset, thereby releasing the engagement between the active locking tongue 23 and the corresponding locking hook 1. Furthermore, during the reset process of the active locking tongue 23, the first transmission rope 33 is relaxed, and the elastic force of the first elastic element 34 will drive the corresponding first driven locking tongue 32 to reset, thus ultimately unlocking all locking tongues and locking hooks 1 simultaneously, at which point the box lid can be opened.

[0044] In other words, the linkage lock structure provided by this utility model embodiment can not only quickly realize multi-point linkage locking between the box body and the box lid, but also save more effort and is more convenient for consumers to use.

[0045] It should be noted that when this interlocking lock structure is installed on a suitcase, the rotating wheel 22 is located on the outside of the suitcase body or lid for easy operation. Furthermore, the rotating wheel 22 can be locked using a combination lock; that is, the combination lock can lock and unlock the rotating wheel 22. Therefore, when the correct combination is entered, the combination lock releases the rotating wheel 22, allowing it to rotate with external force. Conversely, when the incorrect combination is entered, the combination lock remains locked, preventing the rotating wheel 22 from rotating.

[0046] Figure 4 This is an assembly diagram of the wheel and support plate provided in an embodiment of the present invention, as shown below. Figure 4 As shown, a support plate 211 is fixedly mounted on the first lock housing 21, and a rotating wheel 22 is rotatably arranged on the support plate 211. The support plate 211 serves to connect the rotating wheel 22 and the first lock housing 21, and facilitates the rotation of the rotating wheel 22.

[0047] For example, the support plate 211 has a conical structure, and the upper part of its dimensions is smaller than the lower part. The lower part of the support plate 211 is fixed to the first lock housing 21. In addition, the cross-sectional area of ​​the support plate 211 is smaller than the cross-sectional area of ​​the rotating wheel 22, thereby reducing the risk of the support plate 211 interfering with the action of external forces on the rotating wheel 22.

[0048] Furthermore, the support plate 211 has a positioning groove, and the rotating wheel 22 has an elastic protrusion. The elastic protrusion is movably inserted into the positioning groove, and when the active locking tongue 23 and the first driven locking tongue 32 are respectively hooked with the corresponding locking hook 1, the elastic protrusion is inserted into the positioning groove.

[0049] It is easy to understand that when the active locking tongue 23 and the first driven locking tongue 32 are respectively engaged with the corresponding locking hooks 1, the lid and the box body remain locked. At this time, the elastic protrusion inserted into the positioning groove can limit the rotation wheel 22 to a certain extent, avoiding the risk of the lid opening due to accidental rotation of the rotation wheel 22. When it is necessary to open the lid, due to the elasticity of the protrusion, the rotation wheel 22 can be rotated by a certain external force to disengage the elastic protrusion from the positioning groove, thereby completing the unlocking.

[0050] See also Figure 1 The linkage lock structure also includes two box frames 6. One box frame 6 is fixed to the inner wall of the box, and the other box frame 6 is fixed to the inner wall of the box cover. The first lock shell 21, multiple second lock shells 31 and multiple lock hooks 1 can be detachably installed on the corresponding box frame 6.

[0051] In the above embodiment, the box frame 6 supports the lock shell and lock hook 1, facilitating the installation of the lock shell and lock hook 1 on the box or box cover.

[0052] For example, the lock housings (i.e., the first lock housing, the second lock housing, and the third lock housing described below) are fixed to the housing frame 6 by bolts, and the housing frame 6 is riveted to the housing or the lid by screws. The housing frame 6 is usually a square frame structure.

[0053] It's easy to understand that for suitcases of different sizes, you can simply replace the corresponding size of the frame 6 and adjust the position of each lock and the corresponding drive rope. Other structures are universal, thus adapting to suitcases of different sizes.

[0054] In addition, the linkage lock structure also includes multiple rope loops 7, with both ends of each rope loop 7 fixed to the first lock housing 21 and the corresponding second lock housing 31, and each rope loop 7 is sleeved on the corresponding first transmission rope 33. The rope loops 7 can prevent the first transmission rope 33 from contacting and abrading other structures during movement.

[0055] In one implementation of this utility model, see Figure 1 and Figure 3 The transmission component can be a push column 24, which is located on the rotating wheel 22 and parallel to the rotation axis of the rotating wheel 22. The active locking tongue 23 is provided with a guide groove 233, and the push column 24 is movably inserted into the guide groove 233, with the push column 24 and the guide groove 233 having a clearance fit.

[0056] Specifically, the rotation axis of the push post 24 is spaced apart from that of the rotating wheel 22. During the rotation of the rotating wheel 22, the push post 24 will rotate. The push post 24 and the guide groove 233 are in clearance fit. The push post 24 moves approximately in a straight line during the rotation process, thereby ultimately pushing the active locking tongue 23 to move laterally.

[0057] Furthermore, the active locking tongue 23 includes a transmission part 231 and a locking tongue part 232, which are fixedly connected and can be slidably arranged on the first lock housing 21. The guide groove 233 is located on the transmission part 231, and the locking tongue part 232 is used to hook the corresponding locking hook 1.

[0058] In the above embodiment, the transmission part 231 serves to connect the latch 232 and the rotating wheel 22, avoiding the need to directly create the guide groove 233 on the latch structure. Simultaneously, the transmission part 231 increases the installation space for the latch 232, preventing the rotating wheel 22 from interfering with its installation. In other words, during the rotation of the rotating wheel 22, the push post 24 drives the transmission part 231 to move laterally, which in turn drives the latch 232 to move laterally.

[0059] For example, the transmission part 231 has a strip-shaped structure with a protrusion at the top, and the guide groove 233 is located on the protrusion. The locking tongue part 232 has the same structure as the first driven locking tongue 32, thereby achieving universality.

[0060] It should be noted that in other embodiments of this utility model, the transmission part 231 has a groove 2311, and the locking tongue part 232 has a protrusion 2321. The protrusion 2321 is inserted into the groove 2311 and is fitted with a clearance, so as to realize the transmission between the transmission part 231 and the locking tongue part 232 while effectively compensating for installation errors.

[0061] Furthermore, the linkage lock structure also includes a second driven component 4 and a rotating arm 5, with the second driven component 4 having the same structure as the first driven component 3.

[0062] Specifically, the second driven assembly 4 includes a third lock housing, a second driven latch, a second transmission rope, and a second elastic element. The third lock housing is fixed to the box or box cover. The second driven latch is slidably arranged on the third lock housing. The two ends of the second transmission rope are respectively connected to the second driven latch and one end of the rotating arm 5, so as to drive the second driven latch to slide and hook onto the corresponding lock hook 1. The second elastic element is sandwiched between the second driven latch and the third lock housing, and the second elastic element drives the second driven latch to reset. In addition, the rotating arm 5 is rotatably arranged on the third lock housing, and the other end of the rotating arm 5 is movably inserted into the transmission part 231. The rotating arm 5 and the latch part 232 are located on both sides of the rotating wheel 22. The third lock housing is arranged parallel to at least one second lock housing 31.

[0063] In the above embodiment, the rotation of the wheel 22 can drive the transmission part 231 to move laterally. During the lateral movement of the transmission part 231, on the one hand, the first transmission rope 33 can pull the corresponding first driven latch 32 to move laterally toward the first lock housing 21, and on the other hand, it will also drive the rotating arm 5 to rotate, thereby pulling the corresponding second driven latch to move laterally toward the first lock housing 21 through the second transmission rope. This makes the first transmission rope 33 and the second transmission rope corresponding to the latches on both sides of the first lock housing 21 pull in opposite directions, avoiding the problem that the first transmission rope 33 on one side is too long when the first driven component 3 is provided on both sides of the first lock housing 21.

[0064] For example, there can be two first driven components 3, one of which has both the second lock housing 31 and the first lock housing 21 located on the front side, the other has the second lock housing 31 located on the right side, and the third lock housing located on the left side. That is, multiple locking tongues are respectively arranged on the three sides of the suitcase (the lid and the body are hinged on the rear side), thereby further ensuring that the suitcase is subjected to uniform force.

[0065] It is easy to understand that the hooks of the locking hooks 1 corresponding to the first driven component 3 and the second driven component 4 have the same orientation.

[0066] In another implementation of this utility model, the transmission component includes a driving tooth and a driven tooth that mesh with each other. The driving tooth is sleeved on the rotating wheel 22, and the driven tooth is located on the transmission part 231 (not shown). In this case, the rotating wheel 22 and the driving tooth can be regarded as gears. During the rotation of the gear, the rotation will be converted into the linear motion of the driven tooth, thereby ultimately driving the driving locking tongue 23 to move laterally.

[0067] For example, the driven tooth may be provided on the transmission part.

[0068] This utility model embodiment also provides a suitcase, which includes a linkage lock structure as described above.

[0069] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A linkage lock structure, characterized in that, The linkage lock structure includes multiple locking hooks, an active component, and multiple first driven components; Multiple locking hooks are spaced apart on the lid or body of the box; The active component includes a first lock housing, a rotating wheel, and an active locking tongue. The first lock housing is used to fix it to the box body or box cover. The rotating wheel is rotatably arranged on the first lock housing. The active locking tongue is slidably arranged on the first lock housing. The rotating wheel and the active locking tongue are connected by a transmission component to drive the active locking tongue to slide and hook into the corresponding lock hook. Multiple first driven components are arranged at intervals. Each first driven component includes a second lock housing, a first driven bolt, a first transmission rope, and a first elastic element. The second lock housing is used to fix it to the box body or box cover. The first driven bolt is slidably arranged on the second lock housing. The two ends of the first transmission rope are respectively connected to the driving bolt and the corresponding first driven bolt, so as to drive the first driven bolt to slide and hook with the corresponding lock hook. The first elastic element is sandwiched between the first driven bolt and the second lock housing, and the first elastic element drives the first driven bolt to reset.

2. The linkage lock structure according to claim 1, characterized in that, The transmission component is a push column, which is located on the rotating wheel and parallel to the rotation axis of the rotating wheel. The active locking tongue is provided with a guide groove, and the push column is movably inserted into the guide groove, with the push column and the guide groove having a clearance fit.

3. The linkage lock structure according to claim 2, characterized in that, The active locking tongue includes a transmission part and a locking tongue part, which are fixedly connected and can be slidably arranged on the first lock housing. The guide groove is located on the transmission part, and the locking tongue part is used to hook the corresponding locking hook.

4. The linkage lock structure according to claim 3, characterized in that, The linkage lock structure also includes a second driven component and a rotating arm; The second driven component includes a third lock housing, a second driven latch, a second transmission rope, and a second elastic element. The third lock housing is used to fix it to the box or box cover. The second driven latch is slidably arranged on the third lock housing. The two ends of the second transmission rope are respectively connected to the second driven latch and one end of the rotating arm to drive the second driven latch to slide and hook onto the corresponding lock hook. The second elastic element is clamped between the second driven latch and the third lock housing, and the second elastic element drives the second driven latch to reset. The rotating arm is rotatably arranged on the third lock housing, and the other end of the rotating arm is movably inserted into the transmission part. The rotating arm and the locking tongue are located on both sides of the rotating wheel, and the third lock housing is arranged parallel to at least one second lock housing.

5. The linkage lock structure according to claim 1, characterized in that, The transmission component includes a driving tooth and a driven tooth that mesh with each other. The driving tooth is sleeved on the rotating wheel, and the driven tooth is located on the driving locking tongue.

6. The linkage lock structure according to claim 1, characterized in that, A support plate is fixedly installed on the first lock housing, and the rotating wheel is rotatably arranged on the support plate.

7. The linkage lock structure according to claim 6, characterized in that, The support plate has a positioning groove, and the rotating wheel has an elastic protrusion. The elastic protrusion is movably inserted into the positioning groove, and when the active locking tongue and the first driven locking tongue are respectively hooked with the corresponding locking hook, the elastic protrusion is inserted into the positioning groove.

8. The linkage lock structure according to claim 1, characterized in that, The linkage lock structure also includes two box frames, one of which is fixed to the inner wall of the box and the other is fixed to the inner wall of the box cover. The first lock shell, multiple second lock shells, and multiple lock hooks can all be detachably installed on the corresponding box frames.

9. The linkage lock structure according to claim 1, characterized in that, The linkage lock structure also includes multiple rope loops, with both ends of each rope loop fixed to the first lock housing and the corresponding second lock housing, and each rope loop being sleeved on the corresponding first transmission rope.

10. A suitcase, characterized in that, The suitcase includes a linkage lock structure as described in any one of claims 1-9.

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