Linkage lock for box
By using a linkage lock design, the lock cylinder drives the sliding seat to move to achieve multi-point locking, which solves the problems of poor locking effect and stress concentration in existing box locks, and improves locking performance and operational efficiency.
Patent Information
- Application Number
- CN202520192919.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing locks for boxes have problems such as poor locking effect and stress concentration on the lid, which can lead to deformation.
The lock adopts a linkage lock design, including a lock assembly, a first linkage assembly and a transmission mechanism. The lock cylinder drives the sliding seat to move, so that the lock tongue, lock plate and lock pin lock different positions of the box cover respectively, realizing multi-point locking and avoiding stress concentration.
It improves locking performance, distributes force evenly on the lid, reduces deformation, and optimizes operational performance.
Smart Images
Figure CN223952449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to travel case accessory technical field especially, it is a kind of linkage lock for box. BACKGROUND
[0002] With people going out travel, business trip needs, such as travel bag, suitcase, mobile suitcase and briefcase each type of bag because it has loaded many valuable articles or data of people and plays more and more important role in people's life.
[0003] At present, the lock used on bag usually includes lock seat set on box body and lock bolt set on lid, after lid is closed on box body, lock bolt and lock core in lock seat cooperate to realize the locking of the position of lid relative to box body, prevent lid from being opened by irrelevant personnel.Lock core can be ordinary lock core or password lock or lock core with feature recognition capability.
[0004] Although, the security of lock core in prior art can satisfy use demand, however, the lock applied to box in prior art usually adopts single-point locking mode to lock lid, i.e., lock bolt is usually only one. Since the area of lid is usually larger, single-point locking mode cannot effectively lock lid, and there is certain security risk. In addition, only one lock bolt is arranged on lid, stress concentration is prone to be generated on lid, leading to easy deformation of lid.
[0005] Therefore, the lock applied to box in prior art has the technical problems of poor locking effect and stress concentration prone to be generated on lid. SUMMARY
[0006] The linkage lock for box provided by the utility model solves the technical problems of poor locking effect and stress concentration prone to be generated on lid of the lock applied to box in prior art.
[0007] Some implementation solutions for solving the above technical problems include:
[0008] A linkage lock for box includes lock assembly, the lock assembly includes lock rack and lock core rotationally arranged on the lock rack, and the lock assembly further includes lock bolt cooperating with the lock core;
[0009] And first linkage assembly, the first linkage assembly cooperates with the lock assembly to lock box, the first linkage assembly includes lock piece and sliding seat sliding relative to the lock piece, the lock piece is provided with lock hole, and the sliding seat is provided with lock column cooperating with the lock hole;
[0010] The first linkage assembly further includes transmission mechanism, the lock core drives the sliding seat to displace through the transmission mechanism, wherein the lock core releases the lock bolt at the same time the lock column is separated from the lock piece.
[0011] Preferably, the transmission mechanism comprises a gear wheel arranged on the lock core and a rack slidingly connected to the lock frame and matched with the gear wheel, and the rack drives the sliding seat to displace through a connecting member.
[0012] Preferably, one end of the connecting member is fixed to the rack, and the other end of the connecting member is fixed to the sliding seat, and the connecting member is a connecting rod.
[0013] Preferably, the rack is provided with a fixing arm, one end of the connecting member is fixed to the rack through the fixing arm, and the fixing arm and the rack are in an integral structure.
[0014] Preferably, a first elastic member is arranged between the fixing arm and the lock frame, and the first elastic member matches the lock core to restore the fixing arm to a position of the fixing arm when the lock core is not stressed.
[0015] Preferably, the first linkage assembly further comprises a guide, the sliding seat is slidingly connected to the guide, the guide is provided with a guide rail, and the sliding seat is provided with a guide groove matched with the guide rail.
[0016] Preferably, the first linkage assembly has two, the two first linkage assemblies are respectively located on two sides of the lock frame, and the displacement directions of the sliding seats of the two first linkage assemblies are opposite.
[0017] Preferably, the linkage lock further comprises a second linkage assembly, the second linkage assembly comprises a lock plate provided with a lock slot, and the second linkage assembly further comprises a lock rod sliding relative to the lock slot, the lock rod is provided with a second elastic member, the sliding seat drives the lock rod to slide relative to the lock slot by overcoming the elastic force of the second elastic member, the lock rod is matched with the lock slot, and the sliding seat is displaced to make the lock cylinder disengage from the lock hole at the same time that the second elastic member pushes the lock rod to disengage from the lock slot.
[0018] Preferably, the second linkage assembly has two, and the lock rod of each second linkage assembly is driven by an independent sliding seat.
[0019] Preferably, the sliding seat is provided with a driving plate provided with a driving surface, the driving surface is arranged to be inclined relative to the sliding direction of the sliding seat, the surface of the lock rod in contact with the driving surface is an arc surface, and the lock rod and the driving surface are in linear contact or point contact.
[0020] Compared with the prior art, the linkage lock has the following advantages:
[0021] By setting the first linkage assembly, the first linkage assembly includes a lock piece and a sliding seat, a lock post is arranged on the sliding seat, and the lock cylinder drives the lock seat to displace through the transmission mechanism. And, the lock cylinder releases the lock bolt at the same time, and the transmission mechanism drives the sliding seat to displace to make the lock post and the lock hole on the lock piece disengage. The lock bolt cooperates with the lock cylinder, and the lock piece cooperates with the lock post, which are used to lock the box cover. The lock bolt and the lock piece are arranged at different positions of the box cover, so that the box cover is uniformly stressed, and the box cover has multiple locking positions with the box body after being locked, so that the linkage lock has better locking performance, and the box cover is not easy to produce stress concentration, thereby making the box cover not easy to deform.
[0022] By setting the transmission mechanism, the transmission mechanism is used for transmitting motion, so that the transmission mechanism synchronously transmits the motion of the lock cylinder to the sliding seat when the lock cylinder moves, so that the lock cylinder and the sliding seat can move synchronously to simultaneously lock or release the box cover, and the operation performance of the linkage lock is optimized. BRIEF DESCRIPTION OF DRAWINGS
[0023] For the purpose of explanation, several embodiments of the present utility model technology are set forth in the following drawings. The following drawings are incorporated into this text and form part of the specific embodiments. In some cases, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the present utility model subject technology.
[0024] Figure 1 It is a schematic view of the present utility model.
[0025] Figure 2 It is a schematic view when the lock cylinder locks the lock bolt.
[0026] Figure 3 It is a schematic view when the lock cylinder unlocks the lock bolt. Figure 2 、 Figure 3 In order to show clearly, the lock holder is omitted in the figure.
[0027] Figure 4 It is a schematic view of the lock holder.
[0028] Figure 5 It is a schematic view of the lock cylinder.
[0029] Figure 6 It is a schematic view of the sliding seat.
[0030] In the figure:
[0031] 1, lock assembly, 11, lock holder, 12, lock cylinder, 121, gear, 13, lock bolt.
[0032] 2, first linkage assembly, 21, lock piece, 211, lock hole, 22, sliding seat, 221, lock post, 222, guide groove, 23, guide.
[0033] 3. Transmission mechanism, 31. Rack, 311. Fixed arm, 312. First elastic member, 32. Connecting member.
[0034] 4. Second linkage assembly, 41. Lock plate, 411. Lock slot, 42. Lock rod, 421. Second elastic member.
[0035] 5. Drive plate. DETAILED DESCRIPTION
[0036] The specific embodiments shown below are intended to serve as a description of the various configurations of the subject technology and are not intended to represent the only configurations in which the subject technology can be practiced. The specific embodiments include specific details for the purposes of providing a thorough understanding of the subject technology. However, it will be apparent to those skilled in the art that the subject technology can be practiced without
[0037] It should be understood that, in this document, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily implying any actual relationship or order between such entities or actions. The terms "first", "second", "third", etc., are used to identify different instances of an entity, and are not intended to denote any order or priority of such entities.
[0038] The terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0039] Referring to Figures 1 to 6 As shown in the drawings, a linkage lock for a box comprises a lock assembly 1, the lock assembly 1 comprising a lock housing 11 and a lock cylinder 12 rotatably arranged in the lock housing 11, and the lock assembly 1 further comprising a lock bolt 13 cooperating with the lock cylinder 12;
[0040] and a first linkage assembly 2 cooperating with the lock assembly 1 to lock the box, the first linkage assembly 2 comprising a lock plate 21 and a sliding seat 22 sliding relative to the lock plate 21, the lock plate 21 being provided with a lock hole 211, and the sliding seat 22 being provided with a lock post 221 cooperating with the lock hole 211;
[0041] The first linkage assembly 2 further comprises a transmission mechanism 3, the lock cylinder 12 drives the displacement of the sliding seat 22 through the transmission mechanism 3, wherein the lock cylinder 12 releases the lock tongue at the same time as the lock post 221 is separated from the lock piece 21.
[0042] It can be understood that the lock tongue and the lock piece 21 are arranged on the box cover, and the lock holder 11, the sliding seat 22 and the transmission mechanism 3 are arranged in the box body.
[0043] The lock tongue is arranged in position corresponding to the lock cylinder 12, and the sliding seat 22 is arranged in position corresponding to the lock piece 21.
[0044] The connection mode of the lock tongue, the lock piece 21 and the box cover is not limited, and can adopt welding, riveting and other fixing modes. The fixing mode of the lock holder 11 and the box body is not limited, and can adopt welding, riveting and other fixing modes.
[0045] It can be understood that the specific structure of the lock assembly 1 is not limited, and can be any form of lock. Considering that the lock cylinder 12 needs to drive the sliding seat 22 through the transmission mechanism 3, therefore, the lock cylinder 12 should be able to produce rotary motion or linear motion relative to the lock holder 11, that is, the lock cylinder 12 is movable relative to the lock holder 11.
[0046] In some embodiments, the transmission mechanism 3 comprises a gear 121 arranged on the lock cylinder 12 and a rack 31 slidingly connected to the lock holder 11 and matched with the gear 121, the rack 31 drives the displacement of the sliding seat 22 through a connecting piece 32.
[0047] The gear 121 can be installed on the lock cylinder 12 through key connection. The gear 121 can also be an integral structure with the lock cylinder 12.
[0048] Referring to Figures 1 to 6 In some embodiments, one end of the connecting piece 32 is fixed to the rack 31, the other end of the connecting piece 32 is fixed to the sliding seat 22, and the connecting piece 32 is a connecting rod.
[0049] The connecting rod is usually an elongated rod, so that the lock tongue and the lock piece 21 have a farther distance, thereby making the stress points on the box cover more evenly distributed.
[0050] In some embodiments, the rack 31 is provided with a fixing arm 311, one end of the connecting piece 32 is fixed to the rack 31 through the fixing arm 311, and the fixing arm 311 is an integral structure with the rack 31.
[0051] The arrangement of the fixing arm 311 makes the arrangement position of the connecting rod more flexible, for example, the connecting rod can be arranged at the middle part of the sliding seat 22, so that the sliding seat 22 is more evenly stressed to prevent the sliding seat 22 from being stuck.
[0052] Referring toFigures 1 to 6 As shown, in some embodiments, a first elastic member 312 is arranged between the fixed arm 311 and the lock holder 11, which cooperates with the lock cylinder 12 to restore the fixed arm 311 to the position of the fixed arm 311 when the lock cylinder 12 is not stressed.
[0053] The first elastic member 312 can be a spring, one end of which is welded to the lock holder 11, and the other end of which is welded to the fixed arm 311.
[0054] In some embodiments, the first linkage assembly 2 further comprises a guide 23, the sliding seat 22 being slidingly connected to the guide 23, the guide 23 being provided with a guide rail, and the sliding seat 22 being provided with a guide groove 222 cooperating with the guide rail.
[0055] The guide 23 and the guide rail can be an integral structure.
[0056] It can be understood that a third elastic member can be arranged between the sliding seat 22 and the guide 23, which is mainly used to move the sliding seat 22 after being stressed, and to restore the sliding seat 22 to the unstressed state under the action of the elastic member when the acting force applied to the sliding seat 22 disappears.
[0057] It can be understood that when the third elastic member is arranged between the sliding seat 22 and the guide 23, the first elastic member 312 between the fixed arm 311 and the lock holder 11 can be omitted.
[0058] It can be understood that when the third elastic member is arranged between the sliding seat 22 and the guide 23, the sliding seat 22 is stressed by the third elastic member when it is restored to the unstressed state, at this time, the connecting member 32 can be replaced by a flexible wire instead of a connecting rod, so that the connecting rod has a lighter weight. At the same time, when the connecting member 32 is a flexible wire, the setting position of the locking piece 21 is not limited, and can be set at any position of the box cover.
[0059] It can be understood that when the flexible wire replaces the connecting rod, the box body should be provided with a channel for the flexible wire to pass through, which can not only guide the flexible wire, but also protect the flexible wire from winding on other objects.
[0060] Referring to Figures 1 to 6 As shown, in some embodiments, the first linkage assembly 2 has two, two of the first linkage assemblies 2 are respectively located on both sides of the lock holder 11, and the displacement directions of the sliding seats 22 of the two first linkage assemblies 2 are opposite.
[0061] It can be understood that when there are two first linkage assemblies, one rack 31 is located on one side of the gear 121, and the other rack 31 is located on the other side of the gear 121, so as to realize that the displacement directions of the two sliding seats 22 are opposite.
[0062] Referring to Figures 1 to 6 As shown in some embodiments, the linkage lock further comprises a second linkage assembly 4, the second linkage assembly 4 comprises a lock plate 41 provided with a lock slot 411, the second linkage assembly 4 further comprises a lock rod 42 sliding relative to the lock slot 411, the lock rod 42 is provided with a second elastic member 421, the sliding seat 22 drives the lock rod 42 to slide relative to the lock slot 411 against the elastic force of the second elastic member 421, the lock rod 42 cooperates with the lock slot 411, the displacement of the sliding seat 22 makes the lock cylinder 221 disengage from the lock hole 211 while the second elastic member 421 pushes the lock rod 42 away from the lock slot 411.
[0063] Understandably, the lock plate 41 is provided on the box cover, and the lock rod 42 is slidingly connected to the box body.
[0064] In some embodiments, the second linkage assembly 4 has two, and the lock rod 42 of each second linkage assembly 4 is driven by an independent sliding seat 22.
[0065] In some embodiments, the sliding seat 22 is provided with a driving plate 5, the driving plate 5 is provided with a driving surface, the driving surface is inclined relative to the sliding direction of the sliding seat 22, the surface of the lock rod 42 in contact with the driving surface is an arc surface, and the lock rod 42 and the driving surface are in line contact or point contact.
[0066] The driving plate 5 and the sliding seat 22 can be an integral structure.
[0067] Referring to Figures 1 to 6 As shown in some embodiments, the guide 23 can be fixed to the box body in any way.
[0068] Understandably, the box body should also be provided with a guide slot 222, and the lock rod 42 is slidingly connected to the guide slot 222. The second elastic member 421 can be a spring, one end of the second elastic member 421 is fixed to the lock rod 42, and the other end of the second elastic member 421 is fixed to the box body.
[0069] The action of the linkage lock will be further introduced as follows:
[0070] The lock tongue, the lock plate 41 and the lock piece 21 are provided on the box cover. The lock cylinder 12, the driving mechanism 3, the guide 23, the sliding seat 22 and the lock rod 42 are provided on the box body.
[0071] In the locked state of the box cover, the lock tongue cooperates with the lock cylinder 12, the lock hole 211 on the lock piece 21 cooperates with the lock cylinder 221, and the lock slot 411 on the lock plate 41 cooperates with the lock rod 42.
[0072] When the box cover needs to be opened, the lock core 12 is operated to rotate and unlock the lock tongue matched with the lock core 12, in the rotating process, the gear 121 drives the rack 31 to displace, the rack 31 drives the slide 22 to displace through the connecting piece 32, the lock post 221 on the slide 22 is separated from the lock hole 211, meanwhile, the driving surface of the slide 22 drives the lock rod 42 to separate from the lock groove 411 in the displacing process, at this time, the lock tongue, the lock piece 21 and the lock plate 41 are all in the unlocked state, and the box cover can be normally opened.
[0073] When the box cover needs to be locked, the box cover is pressed, the lock hole 211 is matched with the lock post 221, the lock plate 41 is matched with the lock groove 411, and the locking of the box cover is realized.
[0074] That is, the movement direction of the lock core 12, the slide 22 and the lock rod 42 when the box cover is opened is opposite to the movement direction of the lock core 12, the slide 22 and the lock rod 42 when the box cover is unlocked.
[0075] It can be understood that the number of the lock piece 21 and the lock plate 41 is not limited and can be reasonably determined according to the needs.
[0076] The above introduces the subject technical scheme of the utility model and corresponding details, and it can be understood that the above introduction is only some implementation schemes of the subject technical scheme of the utility model, and some details can be omitted in the specific implementation.
[0077] In addition, in some implementation schemes of the above utility model, a plurality of implementation schemes can be combined and implemented, and various combination schemes are not listed one by one due to the length. The person skilled in the art can freely combine the above implementation schemes according to the needs in the specific implementation to obtain better application experience.
[0078] The person skilled in the art can obtain other detail configurations or drawings according to the subject technical scheme of the utility model and the drawings when implementing the subject technical scheme of the utility model, and it is obvious that these details still belong to the range covered by the subject technical scheme of the utility model without departing from the subject technical scheme of the utility model.
Claims
1. A linked lock for a box, characterized by: The application relates to a lock assembly (1) and a first linkage assembly (2) cooperating with the lock assembly (1) to lock a box, the lock assembly (1) comprising a lock rack (11) and a lock cylinder (12) rotatably arranged on the lock rack (11), and a lock bolt cooperating with the lock cylinder (12); the first linkage assembly (2) comprising a lock plate (21) and a sliding seat (22) sliding relative to the lock plate (21), the lock plate (21) being provided with a lock hole (211), and the sliding seat (22) being provided with a lock post (221) cooperating with the lock hole (211); the first linkage assembly (2) further comprising a transmission mechanism (3), the lock cylinder (12) driving the sliding seat (22) to displace through the transmission mechanism (3), wherein the lock cylinder (12) releases the lock bolt at the same time when the lock post (221) is separated from the lock plate (21).
2. A linked lock for use on a box as claimed in claim 1, wherein: The transmission mechanism (3) comprises a gear (121) arranged on the lock cylinder (12) and a rack (31) slidingly connected to the lock rack (11) and cooperating with the gear (121), the rack (31) driving the sliding seat (22) to displace through a connecting piece (32).
3. A linked lock for use on a box as claimed in claim 2, wherein: One end of the connecting piece (32) is fixed to the rack (31), and the other end of the connecting piece (32) is fixed to the sliding seat (22), and the connecting piece (32) is a connecting rod.
4. A linked lock for use on a box as claimed in claim 3, wherein: The rack (31) is provided with a fixing arm (311), one end of the connecting piece (32) being fixed to the rack (31) through the fixing arm (311), and the fixing arm (311) and the rack (31) being an integral structure.
5. A linked lock for use on a box as claimed in claim 4, wherein: A first elastic piece (312) is arranged between the fixing arm (311) and the lock rack (11), the first elastic piece (312) cooperating with the lock cylinder (12) to make the fixing arm (311) return to the position of the fixing arm (311) when the lock cylinder (12) is not stressed.
6. A linked lock for use on a box as claimed in claim 5, wherein: The first linkage assembly (2) further comprises a guider (23), the sliding seat (22) being slidingly connected to the guider (23), the guider (23) being provided with a guide rail, and the sliding seat (22) being provided with a guide groove (222) cooperating with the guide rail.
7. A linked lock for use on a box as claimed in claim 6, wherein: The first linkage assembly (2) has two, the two first linkage assemblies (2) being respectively located on two sides of the lock rack (11), and the displacement directions of the sliding seats (22) of the two first linkage assemblies (2) being opposite.
8. The interlocking lock for use on boxes of claim 7, wherein: The linkage lock further comprises a second linkage assembly (4), the second linkage assembly (4) comprises a lock plate (41) provided with a lock slot (411), the second linkage assembly (4) further comprises a lock rod (42) sliding relative to the lock slot (411), the lock rod (42) is provided with a second elastic element (421), the sliding seat (22) drives the lock rod (42) to slide relative to the lock slot (411) against the elastic force of the second elastic element (421), the lock rod (42) is matched with the lock slot (411), and the displacement of the sliding seat (22) makes the lock post (221) be separated from the lock hole (211) while the second elastic element (421) pushes the lock rod (42) to be separated from the lock slot (411).
9. The interlocking lock for use on boxes of claim 8, wherein: The second linkage assembly (4) is two, and the lock rod (42) of each second linkage assembly (4) is driven by an independent sliding seat (22).
10. The interlocking lock for use on boxes of claim 9, wherein: The sliding seat (22) is provided with a driving plate (5), the driving plate (5) is provided with a driving surface, the driving surface is inclinedly arranged relative to the sliding direction of the sliding seat (22), the surface of the lock rod (42) in contact with the driving surface is an arc surface, and the lock rod (42) and the driving surface are in linear contact or point contact.