CN221143918U

CN221143918U - Take taut padlock in connecting rod formula

Info

Publication number: CN221143918U
Application number: CN202323084881.3U
Authority: CN
Inventors: 徐正; 钟洪亮; 薛鹤飞; 温新; 董昌荐
Original assignee: Guangdong Jingyu Precision Manufacturing Co ltd
Current assignee: Guangdong Jingyu Precision Manufacturing Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-06-14
Anticipated expiration: 2033-11-15

Abstract

The utility model relates to the technical field of box locks, in particular to a lock with a connecting rod type internal tension, which comprises a buckling assembly, wherein the inner side of a lock catch shell is provided with a connecting rod group, the connecting rod group comprises a first swing arm and a second swing arm, the second swing arm is provided with a pretightening buckle, and a lock seat is provided with a pretightening hook matched with the pretightening buckle; the first rotating shaft and the second rotating shaft are provided with elastic pieces; in an unlocking state that the buckle head is separated from the hook head, the elastic piece drives the first swing arm to swing downwards in a direction away from the lock catch shell, and the first swing arm and the second swing arm are in a V-shaped unfolding state; in a locking state of the buckle head and the hook head, the first swing arm and the second swing arm are folded towards the direction close to the lock catch shell, and the pretightening buckle is clamped with the pretightening hook. Compared with the prior art, the internal tightening structure adopts the connecting rod group structure, and when the lock is unlocked, the connecting rod group structure is automatically unfolded and locked, the pre-tightening hook is automatically folded to be matched with the pre-tightening buckle, the internal tightening structure is not required to be additionally operated by a user, the use is more convenient, and the use experience is improved.

Description

Take taut padlock in connecting rod formula

Technical Field

The utility model relates to the technical field of box locks, in particular to a buckle lock with a connecting rod type internal tensioning function.

Background

One end of the case and bag password padlock is hinged with one opening and closing side of the case, the other end of the case and bag password padlock is locked with the other opening and closing side of the case, and the case and bag password padlock is opened, so that the case and bag password padlock is separated from the other opening and closing side of the case, and the case can be opened. The structure of the luggage cipher lock generally comprises a locking block and a cipher mechanism for controlling the movement of the locking block, wherein the cipher mechanism comprises a cipher component and a movable block, the cipher component controls the movement of the locking block through the movable block, and the locking block is used for controlling the movement of a lock hook or a lock catch, so that the lock hook is locked or separated from the lock catch, and the locking or unlocking of the luggage cipher lock is realized. For example, the Chinese patent document with publication number CN209556637U discloses a case password lock; chinese patent document with publication number CN215407959U discloses "cipher lock.

The existing coded lock mainly relies on the buckling between a lock hook and a lock catch to realize locking, and the following parts to be improved exist: the latch hook is inserted into the lock body and matched with the latch on the push button, the latch hook has large pulling force on the latch, and particularly when the latch hook is applied to a hard frame box such as an aluminum box, the acting force on the latch hook is larger, the corresponding strength requirement on the latch hook is high, the latch hook on the push button is combined, and the space for improvement is limited.

The applicant has therefore developed an internally-pulled coded lock as shown in the chinese patent document with publication number CN219605081U, comprising a lock body for mounting on one opening and closing side of the case and a latch hook for mounting on the other opening and closing side of the case, the connecting end of the lock body being provided with a base for fixing with the case, the base being provided with a first rotation shaft via which the lock body is hinged to the base, the free end of the lock body being for locking with the latch hook; the lock body comprises a push button, a transmission piece and a locking assembly, wherein the locking assembly limits the push button to move through the transmission piece, and the push button is provided with a lock catch which is buckled with the lock hook; the bottom of latch hook is equipped with the mounting panel, and the mounting panel is equipped with the drag hook, and the inboard of the lock body is equipped with and draws knot and second pivot, and second pivot and first pivot are juxtaposed and are arranged non-synteny, draw knot articulated in the lock body through the second pivot, when the lock body moves towards the closure direction, draw knot to catch on the drag hook and strain towards the base direction, reaches the purpose of prepositioning, reduces the atress of latch hook hasp, and dual closure security performance is higher.

The pull buckle is of a single-piece structure and passively rotates in the lock body, and in the locking process, when the opening angle of the lock body is an obtuse angle, the pull buckle needs to be manually rotated, and then the draw hook is buckled when the lock body is locked again. When unlocking, if the pull buckle is not completely separated from the drag hook, the user is required to operate. From the above, the above inner tension structure has room for improvement in improving the user experience.

Disclosure of utility model

Aiming at the technical problems in the prior art, the utility model provides a buckle lock with a connecting rod type internal tensioning.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The buckle assembly comprises a fixed seat fixed on one opening and closing side of the case, a buckle module installed on the fixed seat and a lock hook module fixed on the other opening and closing side of the case, wherein the buckle module comprises a buckle shell and a buckle head fixed on the inner side of the buckle shell, and one end part of the buckle shell is hinged to the fixed seat; the latch hook module comprises a lock seat and a hook head, and the hook head is movably arranged in the lock seat; the buckle head is inserted into the lock seat to be matched and locked with the hook head; the method is characterized in that:

The inner side of the lock catch shell is also provided with a connecting rod group, the connecting rod group comprises a first swing arm and a second swing arm, one end part of the first swing arm is hinged to the inner side of the lock catch shell through a first rotating shaft, the other end of the first swing arm is hinged to one end of the second swing arm through a second rotating shaft, and the swing angle of the first swing arm relative to the lock catch shell and the swing angle of the second swing arm relative to the first swing arm are restrained; the other end of the second swing arm is provided with a pretightening buckle, and the lock seat is provided with a pretightening hook matched with the pretightening buckle; the first rotating shaft and the second rotating shaft are provided with elastic pieces;

In an unlocking state that the buckle head is separated from the hook head, the elastic piece drives the first swing arm to swing downwards in a direction away from the lock catch shell, and the first swing arm and the second swing arm are in a V-shaped unfolding state;

in a locking state of the buckle head and the hook head, the first swing arm and the second swing arm are folded towards the direction close to the lock catch shell, and the pretightening buckle is clamped with the pretightening hook.

As a further alternative, the elastic member is a torsion spring, and the torsion spring applies an elastic force to the first swing arm in a direction away from the latch housing, and applies an elastic force to the second swing arm in a direction away from the first swing arm.

As a further alternative, the hinge end of the first swing arm is provided with a first limit part, and after the first swing arm rotates to a preset angle, the first limit part props against the inner wall of the lock catch shell to restrict the swing angle of the first swing arm; the end part of the first swing arm, which is far away from the hinged end, is provided with a second limiting part, and after the second swing arm rotates to a preset angle, the second limiting part props against the second swing arm to restrict the swing angle of the second swing arm.

As a further alternative, a compression spring is arranged between the fixing seat and the lock catch shell, so that the lock catch module automatically tilts after unlocking.

As a further alternative, the pre-fastening is sheet-shaped, comprising a first fastening portion and a second fastening portion, and the pre-fastening hook comprises a first hook portion and a second hook portion, respectively.

As a further alternative, the fixing base extends to form a supporting portion, and the second rotating shaft is located above the supporting portion.

As a further alternative scheme, the lock further comprises a central lock group and a strip shell, wherein the central lock group is arranged in the middle of the strip shell, the two groups of buckling assemblies are respectively arranged at two end parts of the strip shell, and the central lock group can control the hook head to move so as to release the limit of the buckling head to unlock.

As a further alternative, the central lock group comprises a password wheelset, a central rod, an unlocking piece and a transmission rod, wherein the transmission rod is slidably installed in the long-strip shell, one end of the transmission rod is connected with the unlocking piece, the other end of the transmission rod is connected with the hook head in a driving manner, the central rod penetrates through the password wheelset and constrains the unlocking piece, and after the password wheelset rotates to a correct password, the central rod can axially move and then constrains the unlocking piece.

As a further alternative, the unlocking member is a button, a wedge-shaped mating surface is arranged between the button and the central rod, the transmission rod is provided with a chute, and the button is partially embedded in the chute, so that an external force presses the button to drive the transmission rod to move along the vertical direction.

As a further alternative, the unlocking piece is also provided with a lock core, and the insertion of a correct key can rotate the lock core so as to drive the button to be staggered with the wedge-shaped matching surface of the central rod.

The utility model has the beneficial effects that:

the utility model relates to a buckle lock with a connecting rod type internal tensioning function, which is compared with the prior art:

(1) Because the connecting rod group is arranged, the pretightening buckle of the connecting rod group is matched with the pretightening hook on the lock seat, when the lock catch module rotates to be buckled to the lock catch module, before the buckling head is matched with the hook head, the pretightening buckle is hooked in advance to be tensioned, so that the relative positions of the two opening and closing sides of the case are fixed, the aim of pre-positioning is achieved, and when the lock catch shell is continuously pressed downwards, the buckling head can be accurately inserted into the lock seat to be matched with the hook head, and the use experience of a user is improved. In addition, the stress parts of the lock catch module and the lock hook module which are positioned on the two opening and closing sides of the case are mainly on the pretightening buckle and the pretightening hook, and the original buckle head and the hook head which are mainly stressed play a role in locking to a great extent and bear smaller acting force, so that the strength requirements on the buckle head and the hook head are low, the pretightening buckle and the pretightening hook are covered by the lock catch shell, and the pretightening buckle and the pretightening hook, the buckle head and the hook head are combined for double locking, so that the safety performance is higher, and the strength is easier to realize in manufacturing.

(2) The internal tensioning structure adopts a connecting rod group structure, and when the locking device is unlocked, the connecting rod group structure is automatically unfolded and locked, the pre-tightening hook is automatically folded to be matched with the pre-tightening buckle, the internal tensioning structure is not required to be additionally operated by a user, the use is more convenient, and the use experience is improved.

Drawings

Fig. 1 is a schematic structural view of a buckle lock with a connecting rod type internal tension in an embodiment.

Fig. 2 is an exploded view of a buckle lock with a connecting rod type internal tension in an embodiment.

Fig. 3 is a schematic view of the linkage in the embodiment, which is in a folded state when locked.

Fig. 4 is a schematic view of the linkage in an embodiment, in an unfolded state when unlocked.

Fig. 5 is a schematic diagram of the latch module in the embodiment, which is a state after the latch is opened and tilted.

Fig. 6 is a partial schematic view of the embodiment showing the fully extended state of the linkage when unlocked.

Fig. 7 is a partial schematic view of the embodiment showing the expanded state of the link group when locked but not completely locked.

Fig. 8 is a schematic structural diagram of a central lock set in an embodiment.

Fig. 9 is a schematic view of the application of the latch of the embodiment to a case.

Reference numerals:

a long-strip casing 1;

The central control lock group 2, the cipher wheel group 21, the central rod 22, the wedge-shaped matching surface 23, the unlocking piece 24, the transmission rod 25, the chute 251 and the lock core 26;

The fastening component 3, the fixing seat 31, the bearing part 311, the locking module 32, the locking shell 321 and the locking head 322; the locking hook module 33, the lock seat 331, the pre-tightening hook 332, the first hook part 3321, the second hook part 3322 and the hook head 333;

The first swing arm 41, the first limiting portion 411, the second limiting portion 412, the second swing arm 42, the pre-fastening 421, the first fastening portion 4211, the second fastening portion 4212, the first rotation shaft 43, the second rotation shaft 44, and the elastic member 45.

Detailed Description

The present utility model will be described in detail with reference to specific embodiments and drawings.

The embodiment of the invention provides a fastening lock with a connecting rod type internal tightening function, as shown in fig. 1 to 5, comprising a strip shell 1, a central control lock group 2 and a buckling component 3 which are arranged separately, wherein the top of the strip shell 1 is in an open shape, the central control lock group 2 is arranged in the middle of the strip shell 1, and the two groups of buckling components 3 are respectively arranged at two ends of the strip shell 1. The fastening assembly 3 comprises a fixing seat 31 fixed on one opening and closing side of the case, a locking module 32 mounted on the fixing seat 31, and a locking hook module 33 fixed on the other opening and closing side of the case, and the schematic diagram combined with the case is shown in fig. 9. The latch module 32 includes a latch casing 321 and a latch head 322 fixed on the inner side of the latch casing 321, and one end of the latch casing 321 is hinged to the fixing seat 31 through a rotating shaft. The latch hook module 33 includes a latch base 331 and a hook head 333, and the hook head 333 is movably installed in the latch base 331. When locking, the buckle head 322 is inserted into the lock seat 331 to be matched with the hook head 333 for locking, and the central control lock set 2 can control the hook head 333 to move so as to release the limit of the buckle head 322 for unlocking.

In this embodiment, the inner side of the lock catch housing 321 is further provided with a link group 4, the link group 4 includes a first swing arm 41 and a second swing arm 42, one end of the first swing arm 41 is hinged to the inner side of the lock catch housing 321 via a first rotating shaft 43, the other end of the first swing arm 41 is hinged to one end of the second swing arm 42 via a second rotating shaft 44, and the swing angle of the first swing arm 41 relative to the lock catch housing 321 and the swing angle of the second swing arm 42 relative to the first swing arm 41 are constrained; the other end of the second swing arm 42 is provided with a pre-tightening buckle 421, and the lock seat 331 is provided with a pre-tightening hook 332 matched with the pre-tightening buckle 421; the first rotating shaft 43 and the second rotating shaft 44 are provided with elastic members 45, the elastic members 45 are torsion springs, and the torsion springs apply elastic force to the first swing arm 41 in a direction away from the latch housing 321, and apply elastic force to the second swing arm 42 in a direction away from the first swing arm 41.

In the locked state where the buckle head 322 is engaged with the hook head 333, as shown in fig. 3, the first swing arm 41 and the second swing arm 42 are folded toward the direction approaching the latch casing 321, and the pre-fastening 421 is fastened with the pre-fastening hook 332.

In the unlocking state in which the clasp head 322 is separated from the hook head 333, the elastic member 45 drives the first swing arm 41 to swing downward in a direction away from the clasp case 321 as shown in fig. 4 to 6, and the first swing arm 41 and the second swing arm 42 are in a V-shaped unfolded state with each other.

As can be seen from the above, the latch casing 321 is changed from the fully tilted state of fig. 6 to the fully buckled state of fig. 1, the external force overcomes the elastic force of the elastic member 45 to push down the latch casing 321, the first swing arm 41 rotates clockwise toward the inner wall of the latch casing 321, the second swing arm 42 rotates counter-clockwise against the top surface of the latch base 331, and the pre-tightening buckle 421 thereof is gradually buckled into the pre-tightening hook 332. Similarly, the unlocking process is reversed.

In this embodiment, the hinge end of the first swing arm 41 is provided with a first limiting portion 411, and after the first swing arm 41 rotates to a preset angle, the first limiting portion 411 abuts against the inner wall of the lock shell 321 to restrict the swing angle of the first swing arm 41; the end of the first swing arm 41 far away from the hinge end is provided with a second limiting part 412, and after the second swing arm 42 rotates to a preset angle, the second limiting part 412 props against the second swing arm 42 to restrict the swing angle of the second swing arm 42.

In this embodiment, a compression spring (not shown) is disposed between the fixing base 31 and the lock housing 321, so that the lock catch module 32 automatically tilts after unlocking.

In this embodiment, the pre-fastening device 421 has a sheet shape, and includes a first fastening portion 4211 and a second fastening portion 4212 extending opposite to each other, and the pre-fastening hook 332 includes a first hook portion 3321 and a second hook portion 3322.

In this embodiment, the fixing base 31 extends to have a supporting portion 311, and the second rotating shaft 44 is located above the supporting portion 311, so as to play a certain supporting role in the locking process, so that the second swing arm 42 is more stably attached to the top surface of the lock base 331, and the pre-tightening buckle 421 is smoothly buckled into the pre-tightening hook 332.

Regarding the structure of the central lock set 2 of the prior art, in this embodiment, as shown in fig. 8, the central lock set 2 includes a cipher wheel set 21, a center rod 22, an unlocking member 24 and a transmission rod 25, where the transmission rod 25 is slidably installed in the elongated housing 1, and one end of the transmission rod 25 is connected with the unlocking member 24, and the other end is in driving connection with the hook 333, that is, the transmission rod 25 can drive the hook 333 to unlock actively. The central rod 22 penetrates through the password wheel set 21 and restrains the unlocking piece 24, and after the password wheel set 21 rotates to a correct password, the central rod 22 can axially move so as to release the restraint on the unlocking piece 24. The unlocking piece 24 is a button, a wedge-shaped matching surface 23 is arranged between the button and the central rod 22, and the button is pressed downwards to push the central rod 22 to axially move during unlocking. The transmission rod 25 is provided with a chute 251, and the push button is partially embedded in the chute 251 so that an external force presses the push button to drive the transmission rod 25 to move in the vertical direction. The unlocking piece 24 is also provided with a lock core 26, the wedge-shaped matching surface 23 is arranged on the outer side of the lock core 26, the lock core 26 can be rotated by inserting a correct key, so that the button is driven to be staggered with the wedge-shaped matching surface 23 of the central rod 22, and the limit of the button is released in the pressing direction.

It should be noted that this embodiment illustrates the application of the linkage to a center-control latch, and may actually be applied to a single latch.

In addition, the applicant's prior application discloses a central control latch disclosed in the chinese patent publication No. CN211874189U, which discloses a connecting rod structure, but the locking mode of the locking assembly is greatly different from that of the present application, and the connecting rod only has the function of bouncing the latch body, which is completely different from the internal tightening of the present application, and does not give the technical suggestion of automatic clamping and separating of the internal tightening, so that the inventive nature of the present application is not affected.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The buckle lock with the connecting rod type internal tensioning comprises a buckle assembly, wherein the buckle assembly comprises a fixed seat fixed on one opening and closing side of a case, a buckle module arranged on the fixed seat and a lock hook module fixed on the other opening and closing side of the case, the buckle module comprises a buckle shell and a buckle head fixed on the inner side of the buckle shell, and one end part of the buckle shell is hinged to the fixed seat; the latch hook module comprises a lock seat and a hook head, and the hook head is movably arranged in the lock seat; the buckle head is inserted into the lock seat to be matched and locked with the hook head; the method is characterized in that:

2. The internally tensioned buckle-lock with linkage of claim 1 wherein: the elastic piece is a torsion spring, and the torsion spring applies elasticity towards the direction far away from the lock catch shell to the first swing arm and applies elasticity towards the direction far away from the first swing arm to the second swing arm.

3. The internally tensioned buckle-lock with linkage of claim 1 wherein: the hinge end of the first swing arm is provided with a first limiting part, and after the first swing arm rotates to a preset angle, the first limiting part props against the inner wall of the lock catch shell to restrict the swing angle of the first swing arm; the end part of the first swing arm, which is far away from the hinged end, is provided with a second limiting part, and after the second swing arm rotates to a preset angle, the second limiting part props against the second swing arm to restrict the swing angle of the second swing arm.

4. The internally tensioned buckle-lock with linkage of claim 1 wherein: a pressure spring is arranged between the fixed seat and the lock catch shell, so that the lock catch module automatically tilts after unlocking.

5. The internally tensioned buckle-lock with linkage of claim 1 wherein: the pretightening buckle is in a sheet shape and comprises a first buckling part and a second buckling part, and the pretightening hook correspondingly comprises a first hook part and a second hook part.

6. The internally tensioned buckle-lock with linkage of claim 1 wherein: the fixing seat extends to form a bearing part, and the second rotating shaft is positioned above the bearing part.

7. The internally tensioned buckle-lock with linkage of claim 1 wherein: the lock is characterized by further comprising a central control lock group and a strip shell, wherein the central control lock group is arranged in the middle of the strip shell, two groups of buckling components are respectively arranged at two ends of the strip shell, and the central control lock group can control the hook head to move so as to release the limit of the buckling head and unlock the lock.

8. The internally tensioned buckle-lock with linkage of claim 7 wherein: the central control lock group comprises a password wheel group, a central rod, an unlocking piece and a transmission rod, wherein the transmission rod is slidably arranged in the long-strip shell, one end of the transmission rod is connected with the unlocking piece, the other end of the transmission rod is in driving connection with the hook head, the central rod penetrates through the password wheel group and restrains the unlocking piece, and after the password wheel group rotates to a correct password, the central rod can axially move to further release the restraint on the unlocking piece.

9. The internally tensioned buckle-lock with linkage of claim 8 wherein: the unlocking piece is a button, a wedge-shaped matching surface is arranged between the button and the central rod, the transmission rod is provided with a chute, and the button is partially embedded in the chute, so that the button is pressed by external force to drive the transmission rod to move along the vertical direction.

10. The internally tensioned buckle-lock with linkage of claim 8 wherein: the unlocking piece is also provided with a lock core, and the lock core can be rotated by inserting a correct key so as to drive the wedge-shaped matching surface of the button and the central rod to be staggered.