Lock cylinder with adjustable length

By designing an adjustable length lock cylinder structure, the problem of mismatch between the lock cylinder and the door body is solved, achieving stable installation and aesthetics of the lock cylinder, making it suitable for electronic anti-theft locks.

CN223793996UActive Publication Date: 2026-01-13FOSHAN LUOKAI LOCK IND TECH CO LTD
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Patent Information

Application Number
CN202423198827.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-01-13
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

The fixed length of the lock cylinder in existing anti-theft locks can easily lead to mismatch problems during installation, affecting aesthetics or stability.

Method used

An adjustable length lock cylinder structure is designed, which connects the first and second lock cylinder sleeves through a connector, and can be adapted to different door thicknesses by adding additional lock cylinder sleeves. The opening function is achieved by combining the rotation of the toggle and the pivot.

Benefits of technology

It enables flexible adjustment of the lock cylinder length to adapt to different door thicknesses, ensuring installation stability and aesthetics while maintaining the opening function of the electronic anti-theft lock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model particularly relates to a length-adjustable lock cylinder which comprises a shifting piece, a first lock cylinder sleeve and a second lock cylinder sleeve are arranged on the left side and the right side of the shifting piece respectively, the first lock cylinder sleeve and the second lock cylinder sleeve are connected through a connecting piece, the second lock cylinder sleeve is provided with a first shaft hole, and a connector is arranged in the first shaft hole. One end of the connector is connected with a handle, a rotating shaft is arranged in the connector, the other end of the rotating shaft is fixed in the shifting piece, and the shifting piece is provided with a groove. According to the lock cylinder with the adjustable length, the first lock cylinder sleeve and the second lock cylinder sleeve are additionally arranged through the connecting piece, the length can be adjusted, and the lock cylinder can adapt to different door body thicknesses; in addition, the first lock cylinder sleeve can fix the front end of the electronic anti-theft lock, the front end of the electronic anti-theft lock is connected with the shifting piece in an inserted mode, and the shifting piece is driven to rotate to achieve the unlocking function.
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Description

Technical Field

[0001] This utility model specifically relates to an adjustable length lock cylinder. Background Technology

[0002] There are many types and models of anti-theft locks on the market, but the sizes of these locks vary. Therefore, when installing anti-theft locks on door frames, it is necessary to select a lock cylinder of appropriate length according to the thickness of the door. However, the length of the lock cylinder is fixed at the factory, while the thickness of the door can vary due to manufacturing precision issues, which can easily lead to a mismatch between the anti-theft lock and the door frame. Sometimes the lock cylinder sleeve is too long, extending beyond the door body and causing an unsightly appearance; other times the lock cylinder sleeve is too short, and its ends cannot be aligned with the sides of the door body, causing the lock cylinder sleeve to wobble relative to the door body. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a lock cylinder that is compatible with electronic anti-theft locks and has an adjustable length.

[0004] According to the present invention, an adjustable length lock cylinder includes a toggle member. A first lock cylinder sleeve and a second lock cylinder sleeve are respectively provided on the left and right sides of the toggle member. The first lock cylinder sleeve and the second lock cylinder sleeve are connected by a connector. The second lock cylinder sleeve is provided with a first shaft hole. A connector is provided in the first shaft hole. A handle is connected to one end of the connector. A rotating shaft is provided in the connector. The other end of the rotating shaft is fixed in the toggle member. The toggle member is provided with a groove.

[0005] Furthermore, the outer surface of the second lock cylinder sleeve has a gap that communicates with the first shaft hole, and a clamp is provided in the gap, which is clamped on the outer surface of the connector.

[0006] Furthermore, the second lock cylinder sleeve side is provided with at least one third lock cylinder sleeve for increasing the overall length, the third lock cylinder sleeve is provided with a second shaft hole, and the connector passes through the second shaft hole.

[0007] Furthermore, the actuating component is provided with an auxiliary transmission component for extending its length, and the front end of the auxiliary transmission component is provided with a cross-shaped or straight protrusion.

[0008] Specifically, the groove is in the shape of a cross or a straight line.

[0009] Specifically, the first lock cylinder sleeve is provided with a first screw hole, and a first screw is installed in the first screw hole. The lower end of the first screw is screwed onto the connector.

[0010] Specifically, the connector is provided with at least two second screw holes, and a second screw is screwed into the second screw holes.

[0011] Furthermore, the upper surface of the second lock cylinder sleeve is provided with a third screw hole.

[0012] Specifically, the first lock cylinder sleeve side is provided with at least one fourth lock cylinder sleeve for increasing the overall length.

[0013] Furthermore, one end surface of the rotating shaft is provided with a rotating shaft screw hole, and the actuating element is connected to the rotating shaft screw hole through an actuating element screw.

[0014] Specifically, the connector is provided with a socket, the rotating shaft is placed inside the socket, and the first lock cylinder sleeve is equipped with a combination key.

[0015] The beneficial effects of this utility model are: the structure adds a first lock cylinder sleeve and a second lock cylinder sleeve through the connecting parts, which can adjust the length and adapt to different door thicknesses; in addition, the first lock cylinder sleeve can fix the front end of the electronic anti-theft lock, and the front end of the electronic anti-theft lock is inserted and connected to the toggle member, so as to drive the toggle member to rotate and realize the opening function. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings.

[0017] Figure 1 This is a structural diagram of the first embodiment of this utility model.

[0018] Figure 2 yes Figure 1 Another structural diagram from another angle.

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the second embodiment of the present invention.

[0021] Figure 5 yes Figure 4 The first decomposed structure diagram.

[0022] Figure 6 yes Figure 4 The second decomposition diagram.

[0023] Figure 7 This is a schematic diagram of the toggle mechanism.

[0024] As shown in the attached diagram:

[0025] 1. Combination key; 2. First lock cylinder sleeve; 3. First screw hole 201; 4. First screw rod 202; 5. Connector; 6. Second lock cylinder sleeve; 7. First shaft hole 701; 8. Third screw hole 702; 9. Gap 703; 10. Third lock cylinder sleeve; 11. Second shaft hole 801; 12. Rotating shaft; 13. Rotating shaft screw hole 901; 14. Connector; 15. Socket; 16. Handle; 17. Fourth lock cylinder sleeve; 18. Auxiliary transmission component; 19. Boss 1301. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] The following is for reference. Figures 1 to 7 According to an embodiment of the present invention, an adjustable length lock cylinder includes a toggle member 3. A first lock cylinder sleeve 2 and a second lock cylinder sleeve 7 are respectively provided on the left and right sides of the toggle member 3. The first lock cylinder sleeve 2 and the second lock cylinder sleeve 7 are connected by a connector 4. The second lock cylinder sleeve 7 is provided with a first shaft hole 701. A connector 10 is provided in the first shaft hole 701. One end of the connector 10 is connected to a handle 11. A rotating shaft 9 is provided in the connector 10. The other end of the rotating shaft 9 is fixed in the toggle member 3. The toggle member 3 is provided with a groove 301.

[0028] This structure adds a first lock cylinder sleeve 2 and a second lock cylinder sleeve 7 through the connector 4, enabling adjustable length to accommodate different door thicknesses. The two ends of the connector 4 are respectively inserted into the first lock cylinder sleeve 2 and the second lock cylinder sleeve 7, fixing them in place and maintaining their axial position. The diameter of the middle section of the connector 4 is larger than the diameters of the two ends, and this middle section limits the distance between the first lock cylinder sleeve 2 and the second lock cylinder sleeve 7, which is compatible with the actuating member 3. The connector 10 can rotate within the first shaft hole 701, driving the rotating shaft 9 to rotate.

[0029] In addition, the first lock cylinder sleeve can fix the front end of the electronic anti-theft lock, and the front end of the electronic anti-theft lock is inserted and connected to the toggle switch, thereby driving the toggle switch to rotate and realize the opening function. During the rotation of the handle 11, the connector 10 and the rotating shaft 9 are driven to rotate together.

[0030] The outer surface of the second lock cylinder sleeve 7 in this structure has a gap 703, which communicates with the first shaft hole 701. A clamp 6 is provided in the gap, which clamps the outer surface of the connector 10. The clamp 6 restricts the left and right movement range of the connector 10, but does not restrict the rotation of the connector 10. The connector 4 can also be selected in different lengths to accommodate a certain number of first lock cylinder sleeves 2 and second lock cylinder sleeves 7.

[0031] like Figure 4 , Figure 5 and Figure 6 As shown in the figure, the second lock cylinder sleeve 7 side of this structure is provided with at least one third lock cylinder sleeve 8 for increasing the overall length, further increasing the overall length, but not limited to what is shown in this figure, the number of third lock cylinder sleeves 8 can be increased; the third lock cylinder sleeve 8 is provided with a second shaft hole 801, through which the connector 10 passes. The second shaft hole 801 allows the connector 10 to rotate and allows the connector 10 to be inserted.

[0032] like Figure 4 , Figure 5 and Figure 6 As shown in the figure, the first lock cylinder sleeve 2 side of this structure is provided with at least one fourth lock cylinder sleeve 12 for increasing the overall length, but is not limited to what is shown in this figure, and the number of fourth lock cylinder sleeves 12 can be increased; the fourth lock cylinder sleeve 12 is provided with a third shaft hole, through which the front end of the electronic anti-theft lock passes.

[0033] like Figure 6 As shown, the actuating component 3 of this structure is provided with an auxiliary transmission component 13 for extending its length. The front end of the auxiliary transmission component 13 is provided with a cross-shaped or straight-lined boss 1301. The front end of the electronic anti-theft lock is placed at the rear end of the auxiliary transmission component 13, enabling the auxiliary transmission component 13 to rotate. The boss 1301 of the auxiliary transmission component 13 is inserted into the actuating component 3, causing the actuating component 3 and the auxiliary transmission component 13 to rotate together. The thickness of the auxiliary transmission component 13 can be selected according to actual needs.

[0034] like Figure 7 As shown, the groove 301 in this structure is in the shape of a cross or a straight line. For example... Figures 1 to 6 As shown, the first lock cylinder sleeve 2 is fitted with a combination key 1. The front end of the combination key 1 is positioned in the groove 301. When the combination key 1 is rotated, the actuating element 3 is rotated.

[0035] like Figures 3 to 6As shown, similarly, the first lock cylinder sleeve 2 of this structure is provided with a first screw hole 201, and a first screw 202 is installed in the first screw hole 201. The lower end of the first screw 202 is screwed onto the connector 4 to fix the position of the first lock cylinder sleeve 2. In addition, the connector 4 of this structure is provided with at least two second screw holes 401, and a second screw 5 is screwed into the second screw hole 401. The upper surface of the second lock cylinder sleeve 7 of this structure is provided with a third screw hole 702. The third screw hole 702 can also allow other screws to be installed; one end surface of the rotating shaft 9 of this structure is provided with a rotating shaft screw hole 901. The actuating member 3 is connected to the rotating shaft screw hole 901 through the actuating member screw, so that the actuating member 3 and the rotating shaft 9 can be fixedly connected. The connector 10 of this structure is provided with a socket 1001. The rotating shaft 9 is placed in the socket 1001. The rotating shaft 9 and the socket 1001 are square in shape to achieve a matching function.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A length-adjustable lock cylinder comprising a dial (3), characterized in that: The left and right sides of the toggle piece (3) are respectively provided with a first lock core sleeve (2) and a second lock core sleeve (7), the first lock core sleeve (2) and the second lock core sleeve (7) are connected through a connecting piece (4), the second lock core sleeve (7) is provided with a first shaft hole (701), the first shaft hole (701) is provided with a connecting head (10) therein, one end of the connecting head (10) is connected with a handle (11), the connecting head (10) is provided with a rotating shaft (9) therein, the other end of the rotating shaft (9) is fixed in the toggle piece (3), and the toggle piece (3) is provided with a recess (301).

2. The adjustable length lock cylinder of claim 1, wherein: The outer surface of the second lock core sleeve (7) is provided with a gap (703) in communication with the first shaft hole (701), and the gap is provided with a clamp (6) therein.

3. The adjustable length lock cylinder of claim 1, wherein: The second lock core sleeve (7) is provided with at least one third lock core sleeve (8) on the side for increasing the overall length, the third lock core sleeve (8) is provided with a second shaft hole (801), the connecting head (10) passes through the second shaft hole (801), and the first lock core sleeve (2) is provided with at least one fourth lock core sleeve (12) on the side for increasing the overall length.

4. The adjustable length lock cylinder of claim 1, wherein: The toggle piece (3) is provided with an auxiliary transmission piece (13) for lengthening, and the front end of the auxiliary transmission piece (13) is provided with a cross-shaped or a single-shaped boss (1301).

5. The adjustable length lock cylinder of claim 1, wherein: The recess (301) is cross-shaped or single-shaped.

6. An adjustable length lock cylinder as recited in claim 1 wherein: The first lock core sleeve (2) is respectively provided with a first screw hole (201), the first screw hole (201) is provided with a first screw rod (202), and the lower end of the first screw rod (202) is screwed on the connecting piece (4).

7. An adjustable length lock cylinder as recited in claim 1 wherein: The connecting piece (4) is provided with at least two second screw holes (401), and the second screw holes (401) are screwed with second screw rods (5).

8. An adjustable length lock cylinder as defined in claim 1, wherein: The upper surface of the second lock core sleeve (7) is provided with a third screw hole (702).

9. An adjustable length lock cylinder as recited in claim 1 wherein: One end surface of the rotating shaft (9) is provided with a rotating shaft screw hole (901), and the toggle piece (3) and the rotating shaft screw hole (901) are connected through a toggle piece screw rod.

10. The adjustable length lock cylinder of claim 1, wherein: The connecting head (10) is provided with a socket (1001), the rotating shaft (9) is arranged in the socket (1001), and the first lock core sleeve (2) is provided with a password lock key (1).