Linkage mechanism, linkage lock device and door

Abstract

The utility model discloses a kind of linkage mechanism, linkage lock device and door, it is related to lock technical field, wherein, the linkage mechanism includes shell, rack assembly and linkage gear group, shell has accommodating cavity, rack assembly and gear assembly are all arranged in the accommodating cavity, rack assembly includes the first rack movably arranged along first direction, and the second rack and third rack movably arranged along second direction, first direction and second direction form angle, linkage gear group includes the first linkage gear and second linkage gear being spaced apart and being respectively engaged with first rack, second rack is engaged with first linkage gear, third rack is engaged with second linkage gear. When first rack moves in first direction, synchronous reverse movement of second rack and third rack in second direction, its structure is simple and high stability, the number of parts is less to reduce failure rate, when the linkage mechanism is used for lock, the reliability of lock and the convenience of linkage can be improved.

Description

Technical Field

[0001] This utility model relates to the field of locks, and in particular to a linkage mechanism, a linkage lock device, and a door. Background Technology

[0002] The cross-link telescopic mechanism, a mechanical device that achieves synchronous extension and retraction through cross linkages, boasts core advantages in its compact structure, controllable motion trajectory, and high load-bearing stability. While this mechanism has achieved mature applications in large industrial door locks, its expansion into other scenarios remains insufficient. For example, high-precision telescopic adjustment is required in telescopic platforms of stage machinery, lifting supports for medical equipment, gripping terminals of logistics sorting robotic arms, and folding support structures for emergency rescue equipment. However, existing linkage mechanisms generally suffer from drawbacks: traditional hydraulic or gear-driven systems are complex in structure, have high maintenance costs, and are prone to failure in confined spaces or frequent extension / retraction scenarios. Multi-stage telescopic mechanisms often experience motion jamming due to insufficient synchronization, especially under asymmetrical loads, which can easily lead to structural deformation and decreased reliability. Utility Model Content

[0003] The main purpose of this invention is to propose a linkage mechanism that aims to solve the problem of low reliability caused by the complex structure of existing cross telescopic mechanisms.

[0004] To achieve the above objectives, the present invention proposes a linkage mechanism and a housing, wherein the housing has a receiving cavity;

[0005] A rack assembly is disposed in the receiving cavity. The rack assembly includes a first rack movably disposed along a first direction, and a second rack and a third rack movably disposed along a second direction, wherein the first direction and the second direction form an angle.

[0006] The linkage gear set includes a first linkage gear and a second linkage gear spaced apart within the receiving cavity. The first linkage gear and the second linkage gear respectively mesh with the first rack, the second rack meshes with the first linkage gear, and the third rack meshes with the second linkage gear.

[0007] When at least one of the first rack, second rack, third rack, first linkage gear, and second linkage gear moves under the action of an external force, the first rack moves in a first direction, and the first linkage gear and the second linkage gear rotate synchronously to drive the second rack and the third rack to move synchronously in opposite directions in the second direction.

[0008] In one embodiment, the first linkage gear and the second linkage gear are disposed on the same side of the first rack, the second rack and the third rack are disposed between the first linkage gear and the second linkage gear, and the first rack, the second rack and the third rack are staggered along the thickness direction of the housing.

[0009] In one embodiment, the housing has two first openings communicating with the receiving cavity on opposite sides along the first direction. The first openings are for the end of the first rack to pass through. The housing has two second openings on opposite sides along the second direction. One of the second openings is for the end of the second rack to pass through, and the other of the second openings is for the end of the third rack to pass through.

[0010] In one embodiment, the linkage mechanism further includes a plurality of balls, and the inner wall of the housing is provided with a plurality of first grooves extending along a first direction and a second direction respectively corresponding to the rack assembly. The first rack, the second rack and the third rack are provided with a second groove on the side facing the first groove. The balls are movably disposed in the first groove and the second groove with opposite openings.

[0011] In one embodiment, the linkage mechanism further includes a power component, which is drivenly connected to at least one of the first rack, the second rack, the third rack, the first linkage gear, and the second linkage gear.

[0012] In one embodiment, the rack assembly further includes a fourth rack, and the linkage gear set further includes a third linkage gear. The fourth rack is movably disposed along the first direction, and the third linkage gear meshes with the fourth rack and the third rack to cause the first rack and the fourth rack to move synchronously in opposite directions in the first direction.

[0013] In one embodiment, the power assembly includes a handwheel and a drive gear set disposed within the housing. The handwheel is disposed outside the housing and connected to the drive gear set. The drive gear set meshes with the first linkage gear, the second linkage gear, or the third linkage gear.

[0014] In one embodiment, the drive gear set includes a first drive gear and a second drive gear. The first drive gear is connected to the handwheel. The second drive gear is a double gear with a large-diameter gear ring and a small-diameter gear ring. The large-diameter gear ring of the second drive gear meshes with the first drive gear, and the small-diameter gear ring meshes with the third linkage gear.

[0015] This utility model also proposes a linkage lock device, including multiple transmission rods and multiple linkage mechanisms as described in any of the foregoing embodiments, wherein at least one of the linkage mechanisms is configured as a main lock and is provided with a power component, the power component being connected to the linkage gear set for transmission, and the remaining linkage mechanisms are secondary locks and are arranged at intervals along the first direction and / or the second direction, and the main lock and the multiple secondary locks are sequentially connected through the multiple transmission rods.

[0016] This utility model also proposes a door, including a door leaf, a door frame, and the aforementioned linkage locking device. The door leaf is provided with a plurality of latches for engaging with the door frame. The door leaf is openable and closable on the door frame. The linkage locking device is provided on the door leaf and is connected to the plurality of latches for driving the plurality of latches to move synchronously and insert into the door frame.

[0017] The technical solution of this utility model reduces the complexity of the linkage mechanism system by using a gear and rack combination. Specifically, the linkage mechanism includes a housing, a rack assembly, and a linkage gear set. The housing has a receiving cavity, in which the rack assembly and the gear assembly are both disposed. The rack assembly includes a first rack movably disposed along a first direction, and a second rack and a third rack movably disposed along a second direction. The first direction and the second direction form an angle. The linkage gear set includes a first linkage gear and a second linkage gear that are spaced apart and respectively mesh with the first rack. The second rack meshes with the first linkage gear, and the third rack meshes with the second linkage gear. When at least one of the first rack, the second rack, the third rack, the first linkage gear, and the second linkage gear moves under the action of an external force, the first rack moves in the first direction, while the first linkage gear and the second linkage gear rotate synchronously, and the second rack and the third rack move synchronously in opposite directions in the second direction.

[0018] As can be seen from the above, by applying a force to at least one of the components of the rack assembly or the linkage gear assembly to make it move, the first rack can move in the first direction and the second and third racks can move synchronously in opposite directions in the second direction. Its structure is simple and stable, its drive mode is highly compatible, and its small number of parts can reduce the failure rate. When this linkage mechanism is used in locks, it can improve the reliability of the locks and the convenience of linkage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of a structure of an embodiment of the linkage mechanism provided by this utility model;

[0021] Figure 2 A front view of the internal structure of an embodiment of the linkage mechanism provided by this utility model;

[0022] Figure 3 A schematic diagram of another embodiment of the linkage mechanism provided by this utility model;

[0023] Figure 4 A schematic diagram of the disassembled structure of another embodiment of the linkage mechanism provided by this utility model;

[0024] Figure 5 A schematic diagram of the meshing structure of the rack assembly, linkage gear assembly, and drive gear assembly in another embodiment of the linkage mechanism provided by this utility model;

[0025] Figure 6 A schematic diagram of the power component in one embodiment of the linkage mechanism provided by this utility model;

[0026] Figure 7 A schematic diagram of another embodiment of the linkage mechanism provided by this utility model;

[0027] Figure 8 A schematic diagram showing the disassembled structure of another embodiment of the linkage mechanism provided by this utility model;

[0028] Figure 9 A front view of the internal structure in another embodiment of the linkage mechanism provided by this utility model;

[0029] Figure 10 A schematic diagram of the meshing structure of the rack assembly, linkage gear assembly, and drive gear assembly in another embodiment of the linkage mechanism provided by this utility model;

[0030] Figure 11 A schematic diagram of the structure of an embodiment of the linkage lock device provided by this utility model;

[0031] Figure 12 A schematic diagram of a door embodiment provided by this utility model.

[0032] Explanation of icon numbers:

[0033] 100. Linkage mechanism; 1. Housing; 1a. Receiving cavity; 1b. First opening; 1c. Second opening; 1d. First groove; 2. Rack assembly; 2a. Second groove; 21. First rack; 22. Second rack; 23. Third rack; 24. Fourth rack; 3. Linkage gear set; 31. First linkage gear; 32. Second linkage gear; 33. Third linkage gear; 4. Ball bearing; 5. Power assembly; 51. Handwheel; 52. Drive gear set; 521. First drive gear; 522. Second drive gear; 6. Bearing;

[0034] 200. Linkage locking device; 201. Transmission rod;

[0035] 300. Door; 301. Door leaf; 302. Door frame; 303. Lock tongue.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] This utility model proposes a linkage mechanism 100.

[0041] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the linkage mechanism 100 includes a housing 1, a rack assembly 2, and a linkage gear set 3. The housing 1 has a receiving cavity 1a, and the rack assembly 2 and the gear assembly are both disposed in the receiving cavity 1a. The rack assembly 2 includes a first rack 21 movably disposed along a first direction, and a second rack 22 and a third rack 23 movably disposed along a second direction. The first direction and the second direction form an angle. The linkage gear set 3 includes a first linkage gear 31 and a second linkage gear 32 that are spaced apart and respectively mesh with the first rack 21. The second rack 22 meshes with the first linkage gear 31, and the third rack 23 meshes with the second linkage gear 32. When at least one of the first rack 21, the second rack 22, the third rack 23, the first linkage gear 31, and the second linkage gear 32 moves under the action of an external force, the first rack 21 moves in the first direction, and the first linkage gear 31 and the second linkage gear 32 rotate synchronously, driving the second rack 22 and the third rack 23 to move synchronously in the opposite direction in the second direction.

[0042] As can be seen from the above, by applying a force to at least one of the components of the rack assembly 2 or the linkage gear set 3 to make it move, the first rack 21 can move in the first direction and the second rack 22 and the third rack 23 can move synchronously in opposite directions in the second direction. Its structure is simple and stable, the driving mode is diversified so that it has good compatibility, and the number of parts is small, which can also reduce the failure rate. When this linkage mechanism 100 is used in locks, it can improve the reliability of the locks and the convenience of linkage.

[0043] For example, when the linkage mechanism 100 is used for a door lock, the second rack 22 and the third rack 23 can be used to connect to the latch or bolt on the door to drive the two latches in the second direction to extend or retract simultaneously, achieving efficient transmission. The first rack 21 can also be used to connect to the latch or to connect with another linkage mechanism 100 to form a linkage device. The specific structure will be described in detail below. In addition, in this embodiment, the first direction and the second direction are arranged perpendicularly so that the rack assembly 2 forms a cross structure. In some other embodiments of this utility model, the included angle between the first direction and the second direction can be set to 75°, 60°, etc., and no specific limitation is made here.

[0044] In one embodiment, the first linkage gear 31 and the second linkage gear 32 are disposed on the same side of the first rack 21, and the second rack 22 and the third rack 23 are disposed between the first linkage gear 31 and the second linkage gear 32, and the first rack 21, the second rack 22, and the third rack 23 are staggered along the thickness direction of the housing 1.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, the first linkage gear 31 and the second linkage gear 32 are located on the same side of the first rack 21. The first rack 21, the second rack 22, and the third rack 23 are staggered in the thickness direction of the housing 1 to avoid interference. The first rack 21 meshes with the first linkage gear 31 and the second linkage gear 32 simultaneously, and the first linkage gear 31 and the second linkage gear 32 have the same size specifications. When the first rack 21 is subjected to force and moves in the first direction, the first linkage gear 31 and the second linkage gear 32 rotate synchronously. Alternatively, when one of the first linkage gear 31 and the second linkage gear 32 is subjected to external force and rotates, the other one can be driven to rotate synchronously through the first rack 21. Similarly, when the second rack 22 or the third rack 23 is subjected to external force and moves in the second direction, other components will also move simultaneously.

[0046] Since the second rack 22 and the third rack 23 are located between the first linkage gear 31 and the second linkage gear 32, when the first linkage gear 31 and the second linkage gear 32 rotate simultaneously, the second rack 22 and the third rack 23 move synchronously in opposite directions in the second direction. If both the second rack 22 and the third rack 23 are used to connect to the locking tongue, the linkage mechanism 100 can control the two locking tongues to extend or retract simultaneously. Similarly, the first rack 21 can also connect to one locking tongue, or the first rack 21 can be used to connect to the first rack 21 of another linkage mechanism 100. Each linkage mechanism 100 has two locking tongues in the second direction, and the two linkage mechanisms 100 can realize the simultaneous movement of four locking tongues 303.

[0047] Furthermore, by stacking the number of linkage mechanisms 100 in the first direction and connecting the first racks 21 of each linkage mechanism 100 in sequence, and using the second racks 22 and third racks 23 of each linkage mechanism 100 to connect external parts such as the lock tongue, a larger number of external lock tongue parts can move synchronously, thus realizing a modular linkage structure.

[0048] In one embodiment, the housing 1 has two first openings 1b communicating with the receiving cavity 1a on opposite sides along the first direction. The first openings 1b are used for the end of the first rack 21 to pass through. The housing 1 has two second openings 1c on opposite sides along the second direction. One of the second openings 1c is used for the end of the second rack 22 to pass through, and the other second opening 1c is used for the end of the third rack 23 to pass through.

[0049] like Figure 2As shown, in one embodiment of this utility model, the housing 1 has two first openings 1b at the positions corresponding to the two ends of the first rack 21 in the first direction, so that the two ends of the first rack 21 can pass through the first openings 1b to the outside of the housing 1. The housing 1 has a second opening 1c at the positions corresponding to the ends of the second rack 22 and the third rack 23 in the second direction, respectively. The upward-facing end of the second rack 22 passes through one of the second openings 1c, and the upward-facing end of the third rack 23 passes through the other second opening 1c. The first openings 1b and the second openings 1c are provided so that the ends of each rack of the rack assembly 2 can pass through the receiving cavity 1a for connection with other components to form a linkage structure. Of course, the first openings 1b and the second openings 1c can also constrain the movement direction of each rack, preventing the rack from shifting and getting stuck in the receiving cavity 1a.

[0050] In one embodiment, the linkage mechanism 100 further includes a plurality of balls 4. The inner wall of the housing 1 is provided with a plurality of first grooves 1d extending along the first direction and the second direction respectively, corresponding to the rack assembly 2. The first rack 21, the second rack 22 and the third rack 23 are provided with a second groove 2a on the side facing the first groove 1d. The balls 4 are movably provided in the first groove 1d and the second groove 2a with their openings opposite each other.

[0051] like Figure 2 and Figure 5 As shown, in one embodiment of this utility model, the linkage mechanism 100 further includes a plurality of circular balls 4 disposed in the housing 1. Specifically, a first groove 1d is provided on the inner wall of the housing 1 along the first direction and the second direction, respectively. The first groove 1d is a semi-circular arc groove and its shape is adapted to the balls 4. A second groove 2a is provided on each rack of the rack assembly 2 on one side corresponding to the first groove 1d. The second groove 2a is also a semi-circular arc groove and its shape is adapted to the balls 4. The balls 4 are movably disposed in the first groove 1d and the second groove 2a with their openings opposite each other. The balls 4 are used to slide on the groove walls of the first groove 1d and the second groove 2a to reduce the contact area between the first rack 21, the second rack 22 and the third rack 23 and the inner wall of the housing 1, thereby reducing friction and wear, and improving the smoothness of the movement of each rack.

[0052] Furthermore, such as Figure 2 As shown, two bearings 6 are also provided on the side of the first rack 21 away from the first linkage gear 31 and the second linkage gear 32. The two bearings 6 are used to cooperate with the two linkage gears to clamp the first rack 21 and limit the first rack 21. When the first rack 21 moves, the bearings 6 rotate to further reduce friction, making the rack assembly 2 move more easily.

[0053] In one embodiment, the linkage mechanism 100 further includes a power component 5, which is drivenly connected to at least one of the first rack 21, the second rack 22, the third rack 23, the first linkage gear 31, and the second linkage gear 32.

[0054] like Figures 3 to 6 As shown, in another embodiment of this utility model, the linkage mechanism 100 further includes a power component 5. Specifically, the power component 5 is used to provide driving force to the rack assembly 2 and the linkage gear set 3 in the linkage mechanism 100, and is driven to connect with at least one of the first rack 21, the second rack 22, the third rack 23, the first linkage gear 31, and the second linkage gear 32. For example, when the power component 5 is driven to connect with the first rack 21, it can drive the first rack 21 to move along the first direction. At this time, the other components move with the movement of the first rack 21. Similarly, the driving method of the second rack 22 and the third rack 23 can be the same. Alternatively, the power component 5 is driven to connect with the first linkage gear 31, which can drive the first linkage gear 31 to rotate and make the other components move synchronously.

[0055] Of course, the power assembly 5 can also be connected to multiple components at the same time. For example, when it is connected to the first linkage gear 31 and the second linkage gear 32 and drives them to rotate synchronously, it can also drive each rack. When the power assembly 5 is connected to more than two components, it needs to ensure that each rack can move synchronously and there is no jamming. The specific structure is not limited here.

[0056] When the power component 5 is connected to a rack and pinion, a linear motor, cylinder, hydraulic cylinder, electric actuator, etc., can be selected. When the power component 5 is connected to a linkage gear, a rotary motor, transmission gear set, belt, manual turntable, etc., can be selected. In addition to the above methods, various combinations of drive components can also be used. The specific method used is not limited here and can be selected according to actual needs. In the embodiment of this solution, a handwheel 51 plus a drive gear set 52 is used for driving, which will be described in detail below.

[0057] In one embodiment, the rack assembly 2 further includes a fourth rack 24, and the linkage gear set 3 further includes a third linkage gear 33. The fourth rack 24 is movably disposed along a first direction, and the third linkage gear 33 meshes with the fourth rack 24 and the third rack 23 so that the first rack 21 and the fourth rack 24 move synchronously in opposite directions in the first direction.

[0058] like Figures 7 to 10As shown, in another embodiment of the present invention, the rack assembly 2 further includes a fourth rack 24, and the linkage gear set 3 further includes a third linkage gear 33. The fourth rack 24 is arranged side by side with the first rack 21 along the first direction and is located on the side of the first rack 21 away from the first linkage gear 31 and the second linkage gear 32. The third linkage gear 33 is located on the side of the fourth rack 24 away from the first rack 21. One end of the fourth rack 24 passes through one of the first openings 1b, and one end of the first rack 21 passes through the other first opening 1b.

[0059] The first rack 21, the second rack 22, the third rack 23, and the fourth rack 24 are linked to form a cross structure. When the power component 5 drives any sub-component of the rack assembly 2 or the linkage gear group 3, the ends of the first rack 21, the second rack 22, the third rack 23, and the fourth rack 24 can simultaneously extend outward or retract from the housing 1, forming a four-way telescopic mechanism.

[0060] In one embodiment, the power assembly 5 includes a handwheel 51 and a drive gear set 52 disposed in the housing 1. The handwheel 51 is disposed outside the housing 1 and connected to the drive gear set 52. The drive gear set 52 meshes with a first linkage gear 31, a second linkage gear 32 or a third linkage gear 33.

[0061] like Figure 6 and Figure 8 As shown, in another embodiment of this utility model, the power assembly 5 includes a handwheel 51 and a drive gear set 52 disposed in the housing 1. Specifically, the handwheel 51 is disposed outside the housing 1 and is driven connected to the drive gear set 52 disposed in the housing 1 through a transmission shaft. The drive gear set 52 meshes with the first linkage gear 31, the second linkage gear 32 or the third linkage gear 33. The operator can manually rotate the handwheel 51 to drive the first linkage gear 31, the second linkage gear 32 or the third linkage gear 33 to rotate, so as to drive the four racks to extend or retract out of the housing 1 at the same time.

[0062] It is understandable that the structure of handwheel 51 and drive gear set 52 is adopted so that the linkage mechanism 100 is a purely mechanical structure that does not rely on electric devices for transmission. It has high stability and can cope with extreme situations of power failure. In addition, the component structure is simple and can use standard parts.

[0063] In addition, such as Figure 9 and Figure 10 As shown, in this embodiment, a first groove 1d is also provided on the inner wall of the housing 1 in the first direction corresponding to the fourth rack 24, and a second groove 2a is provided on the side of the fourth rack 24 facing the first groove 1d. The openings of the two grooves are arranged opposite each other and ball bearings 4 are provided inside to reduce the friction between the fourth rack 24 and the housing 1.

[0064] It should be noted that, please refer to Figure 1 In this embodiment, the drive assembly also adopts a structure of handwheel 51 plus drive gear set 52 for driving. In the absence of fourth rack 24 and third linkage gear 33, drive gear set 52 can mesh with first linkage gear 31 or second linkage gear 32, and the linkage of each component can also be realized.

[0065] In one embodiment, the drive gear set 52 includes a first drive gear 521 and a second drive gear 522. The first drive gear 521 is connected to the handwheel 51. The second drive gear 522 is a double gear and has a large-diameter gear ring and a small-diameter gear ring. The large-diameter gear ring of the second drive gear 522 meshes with the first drive gear 521, and the small-diameter gear ring meshes with the third linkage gear 33.

[0066] like Figure 6 and Figure 10 As shown, in one embodiment of this utility model, the drive gear set 52 includes a first drive gear 521 and a second drive gear 522. Specifically, the first drive gear 521 is connected to the handwheel 51 via a transmission shaft, and the second drive gear 522 is a double gear with a large-diameter gear ring and a small-diameter gear ring. The first drive gear 521 meshes with the large-diameter gear ring of the second drive gear 522, and the small-diameter gear ring of the second drive gear 522 meshes with the third linkage gear 33 to form a reduction mechanism. This mechanism can provide a larger torque to reduce the resistance to the rotation of the handwheel 51 and reduce the difficulty of operation for the operator.

[0067] This utility model also proposes a linkage lock device 200, which includes multiple transmission rods 201 and multiple linkage mechanisms 100. The specific structure of the linkage mechanism 100 is as described in the above embodiments. Since this linkage lock device 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0068] Please refer to Figure 11 The linkage lock device 200 includes multiple such Figure 1 The linkage mechanism 100 shown is arranged at intervals along the first direction and connected to multiple first racks 21 in sequence by transmission rod 201. A power component 5 (i.e., handwheel 51 and drive gear set 52) ​​is provided on one of the linkage mechanisms 100. The first racks 21 of multiple linkage mechanisms 100 can be driven to move simultaneously by the handwheel 51 and drive gear set 52, thereby controlling the second racks 22 and third racks 23 of multiple linkage mechanisms 100 to move synchronously in opposite directions.

[0069] It should be noted that when the power assembly 5 uses a cylinder or other driving component to directly drive the transmission rod 201 or the first rack 21, the components of each linkage mechanism 100 have the same structure, allowing for modular assembly. When the power assembly 5 uses a handwheel 51 and a drive gear set 52, one linkage mechanism 100 can be set as the main lock, and the remaining linkage mechanisms 100 as auxiliary locks. The handwheel 51 and drive gear set 52 are mounted on the main lock, allowing the main lock to control the linkage of multiple auxiliary locks. These auxiliary locks can be distributed on both sides of the main lock in the first direction. To allow installation space for the power assembly 5, the housing 1 of the main lock and the housing 1 of the auxiliary locks can have different structures, such as... Figure 1 and Figure 3 As shown, the housings 1 of the main lock and the auxiliary lock can be adjusted accordingly, and no specific limitations are made here.

[0070] In another embodiment of the present invention, the linkage lock device 200 may further include a... Figure 8 The linkage mechanism 100 shown and multiple such Figure 1 The linkage mechanism 100 shown is, for ease of description, referred to as Figure 8 The implementation example in the text is defined as the master lock. Figure 1 In one embodiment, a secondary lock is defined as a multi-stage lock. Multiple secondary locks can be distributed along a first direction on the left and right sides of the main lock. Multiple transmission rods 201 connect the first rack 21 of each secondary lock to the first rack 21 and fourth rack 24 of the main lock. Simultaneous extension and retraction of the first rack 21 and fourth rack 24 of the main lock can drive the secondary locks in the first direction. Furthermore, multiple secondary locks can also be distributed along a second direction on the upper and lower sides of the main lock. These secondary locks are rotated 90° and spaced apart in the second direction. Multiple transmission rods 201 connect the first rack 21 of each secondary lock to the second rack 22 and third rack 23 of the main lock. Simultaneous extension and retraction of the second rack 22 and third rack 23 of the main lock can drive the secondary locks in the second direction.

[0071] It can be seen that the linkage mechanism 100 in this solution has multiple embodiments, and the embodiments can be combined and matched to form a specific linkage lock device 200. It has high compatibility and rich application scenarios. In addition to door locks, it can also be applied to scenarios that require locking, such as container hoisting mechanisms and storage cabinets. It has high practicality.

[0072] This utility model also proposes a door 300, such as Figure 12 As shown, the door 300 in this embodiment includes a door leaf 301 and a door frame 302. Figure 11The linkage lock device 200 proposed in the paper has a door leaf 301 rotatably connected to a door frame 302 via a hinge (not shown). The door leaf 301 is provided with multiple latches 303 for inserting into the door frame 302. The transmission rod 201 of the linkage lock device 200 in the second direction is connected to the multiple latches 303 respectively. By controlling the rotation of the handwheel 51 on the main lock, the latches 303 connected to the main lock and multiple auxiliary locks are moved simultaneously and inserted or removed from the door frame 302 to realize the opening and closing of the door leaf 301.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A linkage mechanism applied to a locking device, characterized in that, include: A housing having a receiving cavity; A rack assembly is disposed in the receiving cavity. The rack assembly includes a first rack movably disposed along a first direction, and a second rack and a third rack movably disposed along a second direction, wherein the first direction and the second direction form an angle. The linkage gear set includes a first linkage gear and a second linkage gear spaced apart within the receiving cavity. The first linkage gear and the second linkage gear respectively mesh with the first rack, the second rack meshes with the first linkage gear, and the third rack meshes with the second linkage gear. When at least one of the first rack, second rack, third rack, first linkage gear, and second linkage gear moves under the action of an external force, the first rack moves in a first direction, the first linkage gear and the second linkage gear rotate synchronously, and the second rack and the third rack move synchronously in opposite directions in the second direction.

2. The linkage mechanism as described in claim 1, characterized in that, The first linkage gear and the second linkage gear are located on the same side of the first rack, and the second rack and the third rack are located between the first linkage gear and the second linkage gear. The first rack, the second rack, and the third rack are staggered along the thickness direction of the housing.

3. The linkage mechanism as described in claim 2, characterized in that, The housing has two first openings communicating with the receiving cavity on opposite sides along the first direction. The first opening is for the end of the first rack to pass through. The housing has two second openings on opposite sides along the second direction. One of the second openings is for the end of the second rack to pass through, and the other of the second openings is for the end of the third rack to pass through.

4. The linkage mechanism as described in claim 1, characterized in that, The linkage mechanism also includes multiple balls. The inner wall of the housing is provided with multiple first grooves extending along the first direction and the second direction respectively, corresponding to the rack assembly. The first rack, the second rack and the third rack are provided with second grooves on the side facing the first groove. The balls are movably provided in the first groove and the second groove with opposite openings.

5. The linkage mechanism as described in any one of claims 1 to 4, characterized in that, The linkage mechanism further includes a power component, which is drivenly connected to at least one of the first rack, the second rack, the third rack, the first linkage gear, and the second linkage gear.

6. The linkage mechanism as described in claim 5, characterized in that, The rack assembly further includes a fourth rack, and the linkage gear set further includes a third linkage gear. The fourth rack is movably disposed along the first direction, and the third linkage gear meshes with the fourth rack and the third rack to make the first rack and the fourth rack move synchronously in opposite directions in the first direction.

7. The linkage mechanism as described in claim 6, characterized in that, The power assembly includes a handwheel and a drive gear set disposed within the housing. The handwheel is disposed outside the housing and connected to the drive gear set. The drive gear set meshes with the first linkage gear, the second linkage gear, or the third linkage gear.

8. The linkage mechanism as described in claim 7, characterized in that, The drive gear set includes a first drive gear and a second drive gear. The first drive gear is connected to the handwheel. The second drive gear is a double gear with a large-diameter gear ring and a small-diameter gear ring. The large-diameter gear ring of the second drive gear meshes with the first drive gear, and the small-diameter gear ring meshes with the third linkage gear.

9. A linkage lock device, characterized in that, It includes multiple transmission rods and multiple linkage mechanisms as described in any one of claims 1 to 8, wherein at least one of the linkage mechanisms is configured as a main lock and is provided with a power component, the power component being connected to the linkage gear set for transmission, and the remaining linkage mechanisms are secondary locks and are arranged at intervals along the first direction and / or the second direction, and the main lock and the rack assemblies of the multiple secondary locks are sequentially connected through the multiple transmission rods.

10. A door, characterized in that, The device includes a door leaf, a door frame, and a linkage lock device as described in claim 9. The door leaf is provided with a plurality of latches for engaging with the door frame. The door leaf is openable and closable on the door frame. The linkage lock device is provided on the door leaf and is connected to the plurality of latches for driving the plurality of latches to move synchronously and insert into the door frame.

Images