A lock cylinder extension and lock

Abstract

The utility model relates to a lock technology field especially a lock cylinder extension piece and lock, including lock cylinder part and the part of stirring, be provided with main part and sub -body between lock cylinder part and the part of stirring, be provided with the connecting assembly of adjustable length between sub -body with main part, the jack -hole is all set up on main part and sub -body, the plug -in post that lock cylinder part and the part of stirring are all fixedly provided with with the jack -hole cooperation, be provided with linkage assembly between main part with sub -body, linkage assembly with the part of stirring and lock cylinder part power connection, through setting the connecting assembly of adjustable length, can freely adjust the interval between main part and sub -body to adapt to different specifications lock and door body, and adjust more flexible, through setting linkage assembly after length adjustment, still can the rotation force that lock cylinder part received is transmitted to the part of stirring.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a lock cylinder extension and a lock. Background Technology

[0002] The lock cylinder is the core component of a lock, responsible for controlling its opening. It employs multiple anti-theft technologies, including various irregularly shaped anti-picking pins and precision numbered pin structures, providing high security against technical unlocking. The gourd lock cylinder is a type of door lock cylinder, named for its gourd-like shape. The gourd lock cylinder is the core technology for unlocking doors, mainly used to resist prying, unlocking, and other destructive acts. The gourd lock cylinder uses a complex encryption system design, especially the double-sided lock cylinder, which can greatly improve the anti-theft performance of the door lock.

[0003] Existing lock cylinders have a fixed length, making it difficult to adapt to doors of different thicknesses. Therefore, some lock cylinders use extension components to adjust the length of the lock cylinder, thereby increasing its applicability. For example, Chinese Patent Publication No. CN119777645A discloses "a lock cylinder extension component and lock", which achieves the advantage of increasing or decreasing the actual length of the lock cylinder to correspond to different door thicknesses through the cooperation of a first growth mechanism and a second growth mechanism. The addition or subtraction of the first and second growth mechanisms according to different thicknesses facilitates adaptation to door bodies. Moreover, its operation is simple and has no fragmented parts, thus facilitating subsequent arbitrary addition or subtraction for adaptation. It also facilitates disassembly, replacement, and maintenance work, using the method of adding or subtracting to achieve the required increase or decrease in lock cylinder length.

[0004] However, in actual use, the range of adjustment for the lock cylinder length is relatively fixed, which limits its applicability and reduces its effectiveness. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the fixed range of lock cylinder length adjustment, limited applicability, and reduced performance, and to propose a lock cylinder extension component and lock.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a lock cylinder extension component, including a lock cylinder part and a toggle part, with a main body and a sub-body disposed between the lock cylinder part and the toggle part, and an adjustable length connecting component disposed between the sub-body and the main body, both the main body and the sub-body having insertion holes, both the lock cylinder part and the toggle part having insertion pins fixedly disposed therewith that mate with the insertion holes, and a linkage component disposed between the main body and the sub-body, the linkage component being power-connected to the toggle part and the lock cylinder part.

[0008] Furthermore, the connecting component includes an extension fixedly disposed on the sub-body, the main body has a slot that mates with the extension, the slot has a groove, the extension has a slot that mates with the slot, and the main body has a positioning structure that mates with the slot and the groove.

[0009] Furthermore, the positioning structure includes a positioning element disposed in the groove, a mounting groove is provided on the main body, a bolt threadedly connected to the positioning element is rotatably disposed in the mounting groove, and a friction pad is provided on the side of the positioning element near the slot.

[0010] Furthermore, the linkage component includes a first connecting part and a second connecting part. The first connecting part is provided with a slot that cooperates with the key and the lock cylinder. The second connecting part is provided with a transmission plate that is inserted into the actuating part.

[0011] Furthermore, a linkage part is fixedly provided on the second connecting part, the linkage part is movably inserted with the first connecting part, and a retaining ring is fixedly provided on both the first connecting part and the second connecting part. A rotating groove corresponding to the retaining ring is opened on both the sub-body and the main body.

[0012] This utility model also proposes a lock, including the aforementioned lock cylinder extension.

[0013] The advantages of the lock cylinder extension and lock proposed in this utility model are as follows:

[0014] In this utility model, by setting an adjustable length connecting component, the distance between the main body and the sub-body can be freely adjusted, thereby adapting to locks and doors of different specifications, and the adjustment is more flexible and the application range is wider.

[0015] Secondly, in this invention, by setting a linkage component, the rotational force on the lock cylinder can still be transmitted to the actuating part after the length is adjusted, so that the actuating part's dial rotates stably. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a lock cylinder extension component proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the insert post of this utility model;

[0018] Figure 3 This is a schematic diagram of the retaining ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning component of this utility model.

[0020] In the diagram: 1. Lock cylinder; 2. Actuating part; 3. Main body; 4. Sub-body; 5. Connecting assembly; 51. Extension; 52. Slot; 53. Positioning structure; 531. Positioning component; 532. Bolt; 533. Friction pad; 6. Insert pin; 7. Linkage assembly; 71. First connecting part; 72. Second connecting part; 73. Transmission plate; 74. Linkage part; 75. Snap ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A lock cylinder extension includes a lock cylinder part 1 and an actuating part 2. A main body 3 and a sub-body 4 are disposed between the lock cylinder part 1 and the actuating part 2. An adjustable length connecting component 5 is disposed between the sub-body 4 and the main body 3. Both the main body 3 and the sub-body 4 have insertion holes. Both the lock cylinder part 1 and the actuating part 2 are fixedly provided with insertion pins 6 that mate with the insertion holes. Both the main body 3 and the sub-body 4 are equipped with positioning bolts that are threadedly connected to the insertion pins 6, thus tightly connecting the insertion pins 6 to the insertion holes. This tightly connects the main body 3 and the sub-body 4 to the lock cylinder part 1 and the actuating part 2 respectively to form an integral structure. A linkage component 7 is disposed between the main body 3 and the sub-body 4, and the linkage component 7 is poweredly connected to the actuating part 2 and the lock cylinder part 1.

[0023] In this utility model, by setting an adjustable length connecting component 5, the distance between the main body 3 and the sub-body 4 can be freely adjusted, so that the overall length of the main body 3, connecting component 5 and sub-body 4 can be freely stretched or shortened, thereby adapting to locks and doors of different specifications, and the adjustment is more flexible and the application range is wider. By setting a linkage component 7, after the length is adjusted, the rotational force on the lock cylinder part 1 can still be transmitted to the actuating part 2, so that the dial of the actuating part 2 rotates stably.

[0024] Furthermore, in this embodiment, the connecting component 5 includes an extension 51 fixedly disposed on the sub-body 4. The main body 3 has a slot that mates with the extension 51, and a groove is provided on the slot. The extension 51 has a slot 52 that mates with the slot. The main body 3 is provided with a positioning structure 53 that mates with the slot 52 and the groove. When the sub-body 4 is moved, the position of the slot 52 on the extension 51 moves accordingly. The positioning structure 53 restricts the movement range of the extension 51 and the sub-body 4, preventing the sub-body 4 from separating from the main body 3.

[0025] Furthermore, in this embodiment, the positioning structure 53 includes a positioning member 531 disposed in the groove. The main body 3 has an installation groove, and a bolt 532 threadedly connected to the positioning member 531 is rotatably disposed in the installation groove. A friction pad 533 is disposed on the side of the positioning member 531 near the slot 52. The positioning member 531 is moved by rotating the bolt 532. The friction pad 533 of the positioning member 531 abuts against the slot 52 to form a damping structure, which can stretch the extension to its longest state. After inserting it into the lock or door, the length can be adjusted. The damping structure can also initially fix the adjusted length. After the lock cylinder is removed, the bolt 532 is tightened to fix the length of the lock cylinder.

[0026] It should be noted that, in this embodiment, the linkage component 7 includes a first connecting part 71 and a second connecting part 72. The first connecting part 71 is provided with a slot that cooperates with the key and the lock cylinder part 1. The second connecting part 72 is provided with a transmission plate 73 that is inserted into the actuating part 2. By providing the slot, the rotational force of the lock cylinder part 1 and the key is transmitted to the first connecting part 71, and the second connecting part 72 transmits the rotational force to the actuating part 2, thereby controlling the rotation of the dial of the actuating part 2.

[0027] Furthermore, in this embodiment, a linkage part 74 is fixedly provided on the second connecting part 72. The linkage part 74 is movably inserted into the first connecting part 71. Both the first connecting part 71 and the second connecting part 72 are fixedly provided with retaining rings 75. Both the sub-body 4 and the main body 3 are provided with rotating grooves corresponding to the retaining rings 75. By setting the linkage part 74, the first connecting part 71 and the second connecting part 72 are connected to achieve power transmission. By setting the rotating grooves and retaining rings 75 to cooperate, the positions of the first connecting part 71 and the second connecting part 72 are fixed to prevent separation and detachment, and also to prevent slippage during power transmission.

[0028] This utility model also proposes a lock, including the aforementioned lock cylinder extension.

[0029] Working method: During operation, the lock cylinder part 1 and the actuating part 2 are connected to the main body 3 and the sub-body 4 respectively through the cooperation of the insert 6 and the positioning bolt, so that the extension is connected to the lock cylinder structure. The rotational force of the lock cylinder part 1 and the key is transmitted to the first connecting part 71 through the slot. The first connecting part 71 and the second connecting part 72 are connected by the linkage part 74. The second connecting part 72 transmits the rotational force to the actuating part 2, thereby controlling the rotation of the dial of the actuating part 2.

[0030] Extend the extension to its longest position, insert it into the lock or door, and adjust the length. Since the friction pad 533 of the positioning part 531 abuts against the slot 52, a damping structure is formed. The damping structure can initially fix the adjusted length. After the lock cylinder is removed, tighten the bolt 532 to fix the length of the lock cylinder.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lock cylinder extension, comprising a lock cylinder portion (1) and an actuating portion (2), characterized in that, A main body (3) and a sub-body (4) are provided between the lock cylinder part (1) and the actuating part (2). An adjustable length connecting component (5) is provided between the sub-body (4) and the main body (3). Both the main body (3) and the sub-body (4) are provided with insertion holes. Both the lock cylinder part (1) and the actuating part (2) are fixedly provided with insertion posts (6) that cooperate with the insertion holes. A linkage component (7) is provided between the main body (3) and the sub-body (4). The linkage component (7) is poweredly connected to the actuating part (2) and the lock cylinder part (1).

2. The lock cylinder extension member according to claim 1, characterized in that: The connecting component (5) includes an extension (51) fixedly disposed on the sub-body (4), a slot that mates with the extension (51) is provided on the main body (3), a groove is provided on the slot, a slot (52) that mates with the slot is provided on the extension (51), and a positioning structure (53) that mates with the slot (52) and the groove is provided on the main body (3).

3. A lock cylinder extension member according to claim 2, characterized in that: The positioning structure (53) includes a positioning element (531) disposed in the groove. The main body (3) has an installation groove. A bolt (532) threadedly connected to the positioning element (531) is rotatably disposed in the installation groove. A friction pad (533) is disposed on the side of the positioning element (531) near the slot (52).

4. A lock cylinder extension member according to claim 1, characterized in that: The linkage component (7) includes a first connecting part (71) and a second connecting part (72). The first connecting part (71) is provided with a slot that cooperates with the key and the lock cylinder part (1). The second connecting part (72) is provided with a transmission plate (73) that is inserted into the actuating part (2).

5. A lock cylinder extension member according to claim 4, characterized in that: A linkage part (74) is fixedly provided on the second connecting part (72), and the linkage part (74) is movably connected to the first connecting part (71). A retaining ring (75) is fixedly provided on both the first connecting part (71) and the second connecting part (72). A rotating groove corresponding to the retaining ring (75) is opened on both the sub-body (4) and the main body (3).

6. A lock, characterized in that: Includes the lock cylinder extension as described in any one of claims 1-5.

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