Modular lengthened lock cylinder

CN224664361UActive Publication Date: 2026-08-21ZHONGSHAN JIAHU HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202522021671.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-08-21
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

由于锁芯长短固定单一,不能自由变换长度;然而,由于门的厚度不一,对锁芯长度要求中的外长和内长要求都不一样,这就造成装在门上的门锁锁芯也必须长度不一,才能达到与门的厚度相匹配因为门体的厚度并非是单一不变的,当门的厚度不一至时,对锁芯的外长和内长要求都不一样,这就造成装在门上的门锁锁芯也必须长度不一,才能达到与门的厚度相匹配

Benefits of technology

[0014]本实用新型的有益效果有:连接梁与锁芯壳体之间设置至少一组加长模块插接,加长模块由加长模块壳体、连接钉、连接头、推块组成,加长模块,通连接钉与锁芯壳体固定,或者相邻的连接钉之间固定,连接头将锁胆的转动传动给离合块,推块将钥匙的顶推力传动给离合块,让离合块离合,从而实现安装,结构简单,拆装方便,加长时只需要多增加相应的加长模块,可无限加长。

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Abstract

The utility model relates to a kind of modular lengthened lock cylinder, including connecting beam and knob, the both sides of connecting beam are respectively equipped with lock cylinder shell, clutch block is equipped in knob, its technical key points are, connecting beam is connected between lock cylinder shell by at least one group of lengthening module, lengthening module includes lengthening module shell, connecting nail and through-hole being horizontally arranged are equipped on lengthening module shell, connecting head is rotatably equipped in through-hole, connecting head is inserted with clutch block or with adjacent connecting head insertion, lock cylinder shell is equipped with the lock core that can be inserted with the one end of connecting head close to the one end of lock cylinder shell, connecting head is equipped with the push block that can be transversely moved, push block pushes clutch block or adjacent push block transversely moves when push block transversely moves, connecting nail is threadedly connected with lock cylinder shell or with adjacent connecting nail threadedly connected.The utility model structure is simple, the length of lock cylinder can be lengthened by lengthening module, can be infinitely lengthened, structure is simple, easy to install.
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Description

[Technical Field]

[0001] This utility model relates to an extendable lock cylinder. [Background Technology]

[0002] Existing lock technology encompasses a wide variety of types. A lock cylinder consists of a cylinder body, an inner cylinder, and a shift fork. Unlocking is achieved by using a key to operate the inner cylinder, which rotates the shift fork, which in turn drives other mechanisms of the lock to open the door. Because the length of the lock cylinder is fixed and cannot be freely varied, and because door thicknesses vary, the required outer and inner lengths of the lock cylinder differ. This necessitates that lock cylinders installed on doors also vary in length to match the door's thickness. Consequently, lock cylinder production requires custom-making based on the actual door thickness, necessitating the production of numerous different lengths. This creates significant inconvenience in lock cylinder manufacturing, resulting in a wide variety of lock types, making mass production difficult. Furthermore, it leads to high production costs, large inventory, and resource waste for manufacturers, increasing overall expenses. At the same time, it also brings a lot of inconvenience to sellers, and users are also easily confused when choosing the length of the lock cylinder when purchasing door locks. [Utility Model Content]

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a modular lock cylinder with a simple structure and the ability to be lengthened arbitrarily.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A modular extended lock cylinder includes a connecting beam, with lock cylinder housings on both sides of the connecting beam. A dial is provided between the connecting beam and the lock cylinder housings, and a clutch block is provided inside the dial. The connecting beam and the lock cylinder housings are connected by at least one set of extended modules. Each extended module includes an extended module housing, with a horizontally arranged connecting pin and a through hole on the extended module housing. A connecting head is provided in the through hole, which is rotatably disposed relative to the connecting head. The connecting head is inserted into the clutch block or into an adjacent connecting head. A lock cylinder is provided inside the lock cylinder housing, which can be inserted into one end of the connecting head near one end of the lock cylinder housing. A push block is provided inside the connecting head, which is capable of horizontal movement. When the push block moves horizontally, it pushes against the clutch block or an adjacent push block moves horizontally. The connecting pin is threadedly connected to the lock cylinder housing or to an adjacent connecting pin.

[0006] The modular extended lock cylinder described above is characterized in that: the connecting beam is fixed to the extended module housing by a first connecting member.

[0007] The modular extended lock cylinder described above is characterized in that: the left and right sides of the extended module housing are respectively provided with a second insertion groove and a second insertion protrusion; the connecting beam is provided with a first insertion protrusion that inserts into the second insertion groove near the connecting beam; one side of the lock cylinder housing is provided with a first insertion groove for the second insertion protrusion near the lock cylinder housing to be inserted; the first connector is provided on the extended module housing and passes through the second insertion groove and is fixedly connected to the first insertion protrusion; the lock cylinder housing is provided with a second connector that can pass through the first insertion groove and be fixedly connected to the first insertion protrusion.

[0008] The modular extended lock cylinder described above is characterized in that: the first connecting member and the second connecting member are arranged vertically.

[0009] The modular extended lock cylinder described above is characterized in that: one end of the connecting pin is provided with a threaded post, and the other end is provided with a threaded groove for threaded connection of adjacent threaded posts; the lock cylinder housing is provided with a connecting hole for threaded connection of the threaded posts.

[0010] The modular extended lock cylinder described above is characterized in that: the left and right ends of the connector are respectively provided with a second insertion interface and a second insertion protrusion; the clutch block is provided with a first protrusion that inserts into the second insertion interface; and the lock cylinder is provided with a first interface that inserts into the second insertion protrusion near one end of the second insertion protrusion.

[0011] The modular extended lock cylinder described above is characterized in that: the push block is provided with a horizontally extending slide groove, and the connector head is provided with a limiting block that can slide in the slide groove and is blocked by the two ends of the slide groove in the horizontal direction.

[0012] The modular extended lock cylinder described above is characterized in that: the extended module is provided in a set, the two ends of the extended module housing are respectively connected to the lock cylinder housing and the dial head, one end of the connector is inserted into the clutch block and the other end is inserted into the lock cylinder, the lock cylinder housing is provided with a connecting hole for the connecting nail to be threaded, and the upper left and right sides of the lock cylinder housing are respectively inserted into the connecting beam and the lock cylinder housing.

[0013] A modular extended lock cylinder as described above is characterized in that: the extended modules are provided in multiple sets, and the multiple sets of extended modules are connected by adjacent connectors; the upper left and right sides of the extended module housing are respectively provided with second insertion slots and second insertion protrusions; the connecting beam is provided with a first insertion protrusion that inserts into the second insertion slot near the connecting beam; the top of the extended module housing is provided with a connecting hole communicating with the second insertion slot; one side of the lock cylinder housing is provided with a first insertion slot for the second insertion protrusion near the lock cylinder housing to be inserted; and the connecting hole is provided with a first insertion protrusion that passes through the second insertion slot and is fixedly connected to the first insertion protrusion. The first connector, the lock cylinder housing is provided with a second connector that can be inserted into the first insertion slot and fixedly connected to the first insertion protrusion, the second insertion slot on the adjacent extended module housing is inserted into the second insertion protrusion on the adjacent extended module housing, the connecting hole on the adjacent extended module housing is provided with a third connector that is inserted into the second insertion protrusion on the adjacent extended module housing, one end of the connector near the dial is inserted into the clutch block, one end of the connector near the lock cylinder housing is inserted into the lock cylinder, one end of the connector near the adjacent lock cylinder is inserted into the lock cylinder, the connecting pin near the lock cylinder is threadedly connected to the lock cylinder housing, and the adjacent connecting pins are threadedly connected.

[0014] The beneficial effects of this utility model are as follows: at least one set of extension module plug-in is provided between the connecting beam and the lock cylinder housing. The extension module consists of an extension module housing, a connecting pin, a connecting head, and a push block. The extension module is fixed to the lock cylinder housing through the connecting pin, or fixed between adjacent connecting pins. The connecting head transmits the rotation of the lock cylinder to the clutch block, and the push block transmits the pushing force of the key to the clutch block, causing the clutch block to engage or disengage, thereby realizing installation. The structure is simple and easy to assemble and disassemble. When extending, only more corresponding extension modules need to be added, and it can be extended indefinitely. [Attached Image Description]

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is the main sectional view of the present invention:

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is a perspective view of the extended module housing of this utility model;

[0019] Figure 5 This is a perspective view of the connector of this utility model.

Detailed Implementation Methods

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 5 As shown, a modular extended lock cylinder includes a connecting beam 1 and a lever 3. The lever 3 is located below the connecting beam 1. In this case, the vertical and horizontal positions are relative, with the horizontal direction referring to the axis of the inner cylinder 20. Lock cylinder housings 2 are respectively located on the left and right sides of the connecting beam 1. The lever 3 contains two clutch blocks 31. The lever 3 has a clutch groove, and the clutch blocks 31 have clutch protrusions. When the key pushes, one side of the clutch block 31 engages with the lever 3, while the other side of the clutch block 31 disengages from the lever 3. This structure is a conventional arrangement. Of course, there are other clutch mechanisms, which will not be described in detail here. The connecting beam 1 and the lock cylinder housing 2 are connected by at least one set of extended modules 4. The extended modules 4 are also located between the lock cylinder housing 2 and the lever 3, and are inserted into the lock cylinder housing 2, the lever 3, and the lock cylinder housing 2. The extension module 4 includes an extension module housing 41. The extension module housing 41 has a horizontally arranged connecting pin 42 and a through hole 43. The horizontal through hole allows the connecting pin 42 to pass through. A connector 44 is rotatably housed within the through hole 43. The connector 44 is inserted into the clutch block 31 or an adjacent connector 44. The connector 44 can be fixed to the clutch block 31 by a snap ring. One end of the connector 44 extends out of the through hole 43. The connector 44 can drive the clutch block 31 to rotate. When the clutch block 31 moves laterally, it can engage with the dial 3. When the key is inserted, the end of the key inserted can drive the dial 3 to rotate. The lock cylinder housing 2 has a lock cylinder 20 that can be inserted into one end of the connector 44 near one end of the lock cylinder housing 2. When the lock cylinder 20 rotates, it can drive the clutch block 31 to rotate. The connector 44 contains a push block 45 that can move laterally. When the push block 45 moves laterally, it pushes against the clutch block 31 or an adjacent push block 45 moves laterally. The push block 45 can transmit the key's thrust, causing the clutch block 31 to engage or disengage from the dial 3. The connecting pin 42 is threadedly connected to the lock cylinder housing 2 or to an adjacent connecting pin 42. The connecting beam 1 and the extension module housing 41 are fixed together by the first connecting member 40. The extended module housing 41 is provided with a second insertion slot 46 and a second insertion protrusion 47 on its left and right sides respectively. The connecting beam 1 is provided with a first insertion protrusion 11 that is inserted into the second insertion slot 46 near the side of the connecting beam 1. The lock cylinder housing 2 is provided with a first insertion slot 21 on one side for the second insertion protrusion 47 near the side of the lock cylinder housing 2 to be inserted. The first connector 40 is provided on the extended module housing 41 and passes through the second insertion slot 46 and is fixedly connected to the first insertion protrusion 11. The lock cylinder housing 2 is provided with a second connector 22 that can pass through the first insertion slot 21 and be fixedly connected to the first insertion protrusion 11. The first connector 40 and the second connector 22 are arranged vertically and are inserted from the top.

[0022] For easy fixing, one end of the connecting pin 42 is provided with a threaded post 421, and the other end is provided with a threaded groove 422 for threaded connection of adjacent threaded posts 421. One end of the threaded groove 422 on the connecting pin 42 has a large diameter, and the lock cylinder housing 2 is provided with a connecting hole 23 for threaded connection of threaded posts 421.

[0023] For easy insertion, the connector 44 has a second insertion interface 48 and a second insertion protrusion 49 at its left and right ends, respectively. The clutch block 31 has a first protrusion 33 that inserts into the second insertion interface 48, and the lock cylinder 20 has a first interface 24 that inserts into the second insertion protrusion 49 near one end of the second insertion protrusion 49. The push block 45 has a laterally extending slide groove 451, and the connector 44 has a limiting block 401 that can slide within the slide groove 451 and is blocked by the two ends of the slide groove 451 in the lateral direction. The limiting block 401 can be a snap ring or a protrusion.

[0024] When the extension module 4 is provided in a set, the two ends of the extension module housing 41 are respectively connected to the lock cylinder housing 2 and the dial 3. One end of the connector 44 is inserted into the clutch block 31 and the other end is inserted into the lock cylinder 20. The connector 44 and the lock cylinder 20 are connected through the second insertion protrusion 49 and the first interface 24. The lock cylinder 20 and the dial 3 are connected through the dial 3 and the second insertion interface 48. The lock cylinder housing 2 is provided with a connection hole 23 for the threaded connection of the connecting nail 42. The upper left and right sides of the lock cylinder housing 2 are respectively inserted into the connecting beam 1 and the lock cylinder housing 2.

[0025] When there are multiple sets of extension modules 4, in this embodiment there are two sets of extension modules 4. Multiple sets of extension modules 4 are connected by adjacent connectors 44. The second connector 48 on the adjacent connector 44 is connected to the second connector protrusion 49, that is, the second connector 48 on one connector 44 is connected to the second connector protrusion 49 on another connector 44. The extended module housing 41 has a second insertion slot 46 and a second insertion protrusion 47 on the left and right sides of its upper end, respectively. The connecting beam 1 has a first insertion protrusion 11 that is inserted into the second insertion slot 46 near the side of the connecting beam 1. The top of the extended module housing 41 has a connecting hole 410 that communicates with the second insertion slot 46. The lock cylinder housing 2 has a first insertion slot 21 on one side for the second insertion protrusion 47 near the side of the lock cylinder housing 2 to be inserted. The connecting hole 410 near the connecting beam 1 has a first connector 40 that passes through the second insertion slot 46 and is fixedly connected to the first insertion protrusion 11. The lock cylinder housing 2 has a second connector 22 that can pass through the first insertion slot 21 and be fixedly connected to the first insertion protrusion 11. The second insertion slot 46 on the adjacent extended module housing 41 is inserted into the second insertion protrusion 47 on the adjacent extended module housing 41, that is, the second insertion protrusion 47 of one long module housing 41 is inserted into the long module housing 41 of another long module housing 41. A third connector 411 is provided in the connecting hole 410 on the adjacent extended module housing 41, which is inserted into the second insertion protrusion 47 on the adjacent extended module housing 41. That is, a third connector 411 is provided on one of the connecting holes 410 on the two adjacent long module housings 41, near the connection of the dial 3. One end of the head 44 is inserted into the clutch block 31, and the other end of the connecting head 44 near the lock cylinder housing 2 is inserted into the lock cylinder 20. The other end of the adjacent connecting head 44 is inserted into the lock cylinder housing 2. The connecting pin 42 near the lock cylinder 20 is threadedly connected to the lock cylinder housing 2. The adjacent connecting pins 42 are threadedly connected, that is, the threaded post 421 of one connecting pin 42 is inserted into the threaded groove 422 of another connecting pin 42. The adjacent push blocks 45 abut against each other. In this way, the connecting pins 42, the first connecting member 40, the second connecting member 22, and the third connecting member 411 are connected and fixed firmly.

Claims

1. A modular extended lock cylinder, comprising a connecting beam (1) and a lever (3), wherein lock cylinder housings (2) are respectively provided on both sides of the connecting beam (1), and a clutch block (31) is provided inside the lever (3), characterized in that: The connecting beam (1) and the lock cylinder housing (2) are connected by at least one set of extension modules (4). The extension module (4) includes an extension module housing (41). The extension module housing (41) is provided with a horizontally arranged connecting pin (42) and a through hole (43). The through hole (43) is provided with a connector (44) that can rotate relative to each other. The connector (44) is inserted into the clutch block (31) or into an adjacent connector (44). The lock cylinder housing (2) is provided with a lock cylinder (20) that can be inserted into one end of the connector (44) near one end of the lock cylinder housing (2). The connector (44) is provided with a push block (45) that can move laterally. When the push block (45) moves laterally, the push block (45) pushes the clutch block (31) or the adjacent push block (45) moves laterally. The connecting pin (42) is threadedly connected to the lock cylinder housing (2) or to an adjacent connecting pin (42).

2. The modular extended lock cylinder according to claim 1, characterized in that: The connecting beam (1) is fixed to the extended module housing (41) by the first connector (40).

3. A modular extended lock cylinder according to claim 2, characterized in that: The extended module housing (41) is provided with a second insertion groove (46) and a second insertion protrusion (47) on its left and right sides respectively. The connecting beam (1) is provided with a first insertion protrusion (11) that is inserted into the second insertion groove (46) near the side of the connecting beam (1). The lock cylinder housing (2) is provided with a first insertion groove (21) on one side for the second insertion protrusion (47) near the side of the lock cylinder housing (2) to be inserted. The first connector (40) is provided on the extended module housing (41) and passes through the second insertion groove (46) and is fixedly connected to the first insertion protrusion (11). The lock cylinder housing (2) is provided with a second connector (22) that can pass through the first insertion groove (21) and be fixedly connected to the first insertion protrusion (11).

4. A modular extended lock cylinder according to claim 3, characterized in that: The first connector (40) and the second connector (22) are arranged vertically.

5. A modular extended lock cylinder according to claim 1, characterized in that: The connecting pin (42) has a threaded post (421) at one end and a threaded groove (422) at the other end for threaded connection of adjacent threaded posts (421). The lock cylinder housing (2) has a connecting hole (23) for threaded connection of the threaded post (421).

6. A modular extended lock cylinder according to claim 1, characterized in that: The connector (44) is provided with a second insertion interface (48) and a second insertion protrusion (49) at its left and right ends respectively. The clutch block (31) is provided with a first protrusion (33) that is inserted into the second insertion interface (48). The lock cylinder (20) is provided with a first interface (24) that is inserted into the second insertion protrusion (49) near one end of the second insertion protrusion (49).

7. A modular extended lock cylinder according to claim 1, characterized in that: The push block (45) is provided with a horizontally extending slide groove (451), and the connector (44) is provided with a limiting block (401) that can slide in the slide groove (451) and is blocked by the two ends of the slide groove (451) in the horizontal direction.

8. A modular extended lock cylinder according to claim 1 or 3, characterized in that: The extended module (4) is provided in a set. The two ends of the extended module housing (41) are respectively connected to the lock cylinder housing (2) and the dial (3). One end of the connector (44) is inserted into the clutch block (31) and the other end is inserted into the lock cylinder (20). The lock cylinder housing (2) is provided with a connecting hole (23) for the connecting pin (42) to be threaded. The upper left and right sides of the lock cylinder housing (2) are respectively inserted into the connecting beam (1) and the lock cylinder housing (2).

9. A modular extended lock cylinder according to claim 1 or 5, characterized in that: The extended module (4) is provided in multiple sets, and the multiple sets of extended modules (4) are connected by adjacent connectors (44). The upper left and right sides of the extended module housing (41) are respectively provided with second insertion slots (46) and second insertion protrusions (47). The connecting beam (1) is provided with a first insertion protrusion (11) that is inserted into the second insertion slot (46) near the side of the connecting beam (1). The top of the extended module housing (41) is provided with a connecting hole (410) that communicates with the second insertion slot (46). The lock cylinder housing (2) is provided with a first insertion slot (21) on one side for the second insertion protrusion (47) near the side of the lock cylinder housing (2) to be inserted. The connecting hole (410) is provided with a first connector (40) that passes through the second insertion slot (46) and is fixedly connected to the first insertion protrusion (11). The lock cylinder housing (2) is provided with... A second connector (22) is provided that can be inserted into the first insertion slot (21) and fixedly connected to the first insertion protrusion (11). The second insertion slot (46) on the adjacent extended module housing (41) is inserted into the second insertion protrusion (47) on the adjacent extended module housing (41). A third connector (411) is provided in the connecting hole (410) on the adjacent extended module housing (41) and inserted into the second insertion protrusion (47) on the adjacent extended module housing (41). One end of the connector (44) near the dial (3) is inserted into the clutch block (31). One end of the connector (44) near the lock cylinder housing (2) is inserted into the lock cylinder (20). One end of the connector (44) near the lock cylinder (20) is inserted. The connecting pin (42) near the lock cylinder (20) is threadedly connected to the lock cylinder housing (2). The connecting pins (42) near each other are threadedly connected.