A lockable core
By designing a lock cylinder that can be connected, the standardized production and assembly of lock cylinders has been achieved, solving the problems of high production costs and limited applicability caused by fixed lock cylinder lengths, reducing costs and improving stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN ORIENT GANGSHENG METAL PRODUCTS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-26
AI Technical Summary
The fixed length of existing lock cylinders necessitates multiple standard batches, increasing production costs and making it difficult to adapt to non-standardized application points.
The design allows for connection to lock cylinders. Through standardized production of the dial section, lock cylinder section, dial, clutch, and pin mechanism, the length can be adjusted using extension sections to adapt to different needs, thus achieving flexible assembly of the lock cylinder.
This has enabled standardized production and assembly of lock cylinders, reduced production costs, expanded the scope of application, and improved the stability and applicability of lock cylinders.
Smart Images

Figure CN224413348U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lock cylinder technology, and in particular relates to a lock cylinder that can be connected. Background Technology
[0002] Existing lock cylinders mainly consist of a lock shell, two lock cylinders, a dial, and a clutch mechanism. Currently, most lock shell structures are of fixed length. For applications with different thicknesses, existing lock cylinders are divided into multiple standard batches, requiring numerous production and assembly lines, which significantly impacts production costs. Therefore, designing an adjustable length lock cylinder is a problem that professionals in this field need to solve. Summary of the Invention
[0003] The purpose of this utility model is to provide a lock cylinder that can be connected. By designing a novel lock cylinder mechanism, it is possible to achieve standardized production of the dial section, lock cylinder section, dial, clutch and pin mechanism. By adjusting the length of the connecting section, it is possible to produce and assemble lock cylinders of different lengths. At the same time, it can be applied to non-standard special application points, improve the scope of application, and greatly reduce the cost of lock cylinders.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model is a lock cylinder that can be connected, including a lock shell, a dial, a clutch and two lock cylinders;
[0006] The lock case includes a dial section, two lock cylinder sections, and two extension sections. Each of the dial section, lock cylinder section, and extension section includes a lock tube and a connecting part.
[0007] Both ends of the dial section connecting part and the outer end face of the two extension section connecting parts are provided with waist-shaped embedding openings. The dial section and the extension section are provided with threaded openings that penetrate the embedding openings. The inner end faces of the two lock cylinder sections and the inner end faces of the two extension sections are provided with inserts, and the inserts are provided with through openings.
[0008] The two extension sections are respectively set between the two lock cylinder sections and the dial section, the insert gap is set in the insertion port, and the threaded port is threaded with a fastening screw passing through the through port;
[0009] The lock cylinder is located inside the lock tube section of the lock cylinder segment, and a plurality of tumbler mechanisms are provided between the lock cylinder and the connection part of the lock cylinder segment.
[0010] The locking tube of the dial section is provided with a dial groove and forms two end sleeves. The clutch includes two hollow cylindrical rotating sleeves. The two rotating sleeves are rotatably disposed in the two end sleeves respectively. A set of inner keyways is provided in the rotating sleeve. A transmission block with the same inner hole length is slidably connected in the rotating sleeve. The transmission block is provided with a convex key that slides with the inner keyway. The opposite ends of the two transmission blocks are fixedly connected.
[0011] The dial consists of a sleeve, a dial head, and a connecting piece. The two ends of the sleeve are respectively fitted onto the outside of two rotating sleeves. The connecting piece is disposed between the two rotating sleeves and is provided with a set of keyways that slide with the convex key.
[0012] The extension rod includes an extension sleeve and a core rod. The extension sleeve is rotatably disposed inside the locking tube of the extension section. Both ends of the extension sleeve are keyed to the end of the rotating sleeve and the end of the lock cylinder, respectively. The core rod is slidably disposed inside the extension sleeve, and the inner end face of the core rod is in contact with the outer end face of the transmission block.
[0013] Furthermore, a keyhole is provided at the core of the lock cylinder, and several inner pin holes connected to the keyhole are provided on the lock cylinder. Several outer pin holes are linearly provided at the connecting part of the lock cylinder section, and the pin mechanism is installed in the inner pin holes and outer pin holes.
[0014] Furthermore, the inner end of the lock cylinder is provided with a port for connection to the keyhole, and the outer end of the core rod is slidably disposed within the port.
[0015] Furthermore, the outer end of the extension sleeve is provided with a set of first key heads, the inner end of the lock cylinder is provided with a first key groove that mates with the first key heads, the inner end of the extension sleeve is provided with a set of second key grooves, and the outer end of the rotating sleeve is provided with a second key head that mates with the second key grooves.
[0016] Furthermore, the circumferential side of the rotating sleeve is provided with a retaining ring groove, and a spring retaining ring is provided in the retaining ring groove. The two end faces of the spring retaining ring are respectively attached to the inner wall of the dial groove and the outer wall of the dial.
[0017] Furthermore, the outer end of the rotating sleeve is provided with a limiting ring, the outer end of the transmission block is provided with a connector end, the connector end is slidably connected to the limiting ring, the end of the extension rod is in contact with the outer end face of the connector end, and the outer diameter of the extension rod is consistent with the outer diameter of the connector end.
[0018] This utility model has the following beneficial effects:
[0019] 1. This utility model, through the design of a novel lock cylinder mechanism, enables the standardized production of the dial section, lock cylinder section, dial, clutch, and pin mechanism. By adjusting the length of the extension section, it can achieve the production and assembly of lock cylinders of different lengths. At the same time, it can be applied to non-standard special application points, thereby improving the scope of application and greatly reducing the cost of lock cylinders.
[0020] 2. This utility model achieves a stable connection between the extension sleeve, the lock cylinder, and a rotating sleeve through a keyway structure, ensuring that the rotation of the lock cylinder can synchronously drive the rotation of the rotating sleeve. At the same time, the two transmission components are always connected to the dial wheel, and the rotation of the rotating sleeve can synchronously drive the rotation between the transmission components and the dial wheel. All connection points between the lock cylinder end and the dial wheel end are constant pin-key connections, which have strong stability and improve the stability of the lock opening and closing.
[0021] 3. This utility model achieves the interconnection of separate lock case components through the embedding port and the insert, which is conducive to positioning and installation, and assembly. Furthermore, the embedding port and the insert are designed as waist-shaped structures, which can provide a larger connection surface on the connection part and improve the connection stability.
[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of a lock cylinder that can be connected to the present invention;
[0025] Figure 2 This is an exploded view of the structure of this utility model;
[0026] Figure 3 This is a schematic diagram of the structure of one end of the derailleur section;
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1-Locking cylinder, 2-Dial section, 3-Locking cylinder section, 4-Extending section, 5-Extending rod, 6-Swivel sleeve, 7-Dial, 8-Spring retaining ring, 9-Fasting screw, 101-First keyway, 102-Inner pin hole, 103-Port, 201-Embedded opening, 202-Threaded opening, 203-Dial groove, 204-End sleeve, 301-Insertion block, 302-Through opening, 303-Outer pin hole, 501-Extending sleeve, 502-Core rod, 503-First key head, 504-Second keyway, 601-Second key head, 602-Inner keyway, 603-Transmission block, 604-Protruding key, 605-Retaining ring groove, 606-Limiting ring, 607-Connector end, 701-Sleeve section, 702-Dial head, 703-Connecting piece, 704-Key opening. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-3 As shown, this utility model is a lock cylinder that can be connected, including a lock shell, a dial 7, a clutch and two lock cylinders 1;
[0031] The lock case includes a dial section 2, two lock cylinder sections 3 and two extension sections 4. The dial section 2, lock cylinder section 3 and extension section 4 each include a lock tube and a connecting part.
[0032] Both ends of the connecting part of the dial section 2 and the outer end face of the connecting part of the two extension sections 4 are provided with waist-shaped inlays 201. The dial section 2 and the extension section 4 are provided with threaded openings 202 that pass through the inlays 201. The inner end faces of the two lock sections 3 and the two extension sections 4 are provided with inserts 301. The inserts 301 are provided with through openings 302.
[0033] Two extension sections 4 are respectively set between two lock cylinder sections 3 and dial section 2. The gap of the insert 301 is set in the insertion port 201. The threaded port 202 is threaded with a fastening screw 9 that passes through the through port 302.
[0034] The lock cylinder 1 is located inside the lock tube of the lock cylinder section 3, and a number of tumbler mechanisms are provided between the lock cylinder 1 and the lock cylinder section 3.
[0035] The locking tube of the shift wheel section 2 is provided with a shift wheel groove 203 and forms two end sleeves 204. The clutch includes two hollow cylindrical rotating sleeves 6. The two rotating sleeves 6 are rotatably disposed in the two end sleeves 204 respectively. The rotating sleeve 6 is provided with a set of inner keyways 602. The rotating sleeve 6 is slidably connected with a transmission block 603 with the same inner hole length. The transmission block 603 is provided with a protruding key 604 that slides with the inner keyway 602. The opposite ends of the two transmission blocks 603 are fixedly connected.
[0036] The dial 7 is composed of a sleeve 701, a dial head 702 and a connecting piece 703. The two ends of the sleeve 701 are respectively sleeved on the outside of the two rotating sleeves 6. The connecting piece 703 is disposed between the two rotating sleeves 6 and is provided with a set of keyways 704 that slide with the convex key 604.
[0037] The extension rod 5 includes an extension sleeve 501 and a core rod 502. The extension sleeve 501 is rotatably disposed inside the locking tube of the extension section 4. Both ends of the extension sleeve 501 are keyed to the end of the rotating sleeve 6 and the end of the lock cylinder 1, respectively. The core rod 502 is slidably disposed inside the extension sleeve 501. The inner end face of the core rod 502 is in contact with the outer end face of the transmission block 603.
[0038] Among them, such as Figure 1-2 As shown, a keyhole is provided at the axis of the lock cylinder 1, and several inner pin holes 102 connected to the keyhole are provided on the lock cylinder 1. Several outer pin holes 303 are linearly provided at the connecting part of the lock cylinder section 3. The pin mechanism is installed in the inner pin holes 102 and the outer pin holes 303.
[0039] Among them, such as Figure 1-2 As shown, the inner end of the lock cylinder 1 is provided with a port 103 that connects to the keyhole, and the outer end of the core rod 502 is slidably disposed in the port 103.
[0040] Among them, such as Figure 1-2 As shown, the outer end of the extension sleeve 501 is provided with a set of first key heads 503, the inner end of the lock cylinder 1 is provided with a first key groove 101 that mates with the first key heads 503, the inner end of the extension sleeve 501 is provided with a set of second key grooves 504, and the outer end of the rotating sleeve 6 is provided with a second key head 601 that mates with the second key grooves 504.
[0041] Among them, such as Figure 1-2 As shown, the rotating sleeve 6 has a retaining ring groove 605 on its circumference, and a spring retaining ring 8 is provided in the retaining ring groove 605. The two ends of the spring retaining ring 8 are respectively attached to the inner wall of the dial groove 203 and the outer wall of the dial 7.
[0042] Among them, such as Figure 1-2 As shown, the outer end of the rotating sleeve 6 is provided with a limiting ring 606, and the outer end of the transmission block 603 is provided with a connector end 607. The connector end 607 is slidably connected to the limiting ring 606. The end of the extension rod 5 is in contact with the outer end face of the connector end 607, and the outer diameter of the extension rod 5 is the same as the outer diameter of the connector end 607.
[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A lock cylinder-connectable device, comprising a lock housing, a dial (7), a clutch, and two lock cylinders (1), characterized in that: The lock case includes a dial section (2), two lock cylinder sections (3) and two extension sections (4), and each of the dial section (2), lock cylinder section (3) and extension section (4) includes a lock tube and a connecting part; Both ends of the connecting part of the dial section (2) and the outer end face of the connecting part of the two extension sections (4) are provided with waist-shaped embedding openings (201). The dial section (2) and the extension section (4) are provided with threaded openings (202) that pass through the embedding openings (201). The inner end faces of the two lock cylinder sections (3) and the inner end faces of the two extension sections (4) are provided with inserts (301). The inserts (301) are provided with through openings (302). The two extension sections (4) are respectively set between the two lock sections (3) and the dial section (2). The gap of the insert (301) is set in the insertion port (201). The threaded port (202) is threaded with a fastening screw (9) that passes through the through port (302). The lock cylinder (1) is located in the lock tube of the lock cylinder section (3) and a plurality of tumbler mechanisms are provided between the lock cylinder (1) and the lock cylinder section (3). The locking tube of the dial section (2) is provided with a dial groove (203) and forms two end sleeves (204). The clutch includes two hollow cylindrical rotating sleeves (6). The two rotating sleeves (6) are respectively rotatably disposed in the two end sleeves (204). The rotating sleeve (6) is provided with a set of inner keyways (602). The rotating sleeve (6) is slidably connected with a transmission block (603) with the same inner hole length. The transmission block (603) is provided with a convex key (604) that slides with the inner keyway (602). The opposite ends of the two transmission blocks (603) are fixedly connected. The dial (7) is composed of a sleeve (701), a dial head (702) and a connecting piece (703). The two ends of the sleeve (701) are respectively sleeved on the outside of two rotating sleeves (6). The connecting piece (703) is disposed between the two rotating sleeves (6) and is provided with a set of keyways (704) that slide with the convex key (604). The extension rod (5) includes an extension sleeve (501) and a core rod (502). The extension sleeve (501) is rotatably disposed in the locking tube of the extension section (4). The two ends of the extension sleeve (501) are keyed to the end of the rotating sleeve (6) and the end of the lock cylinder (1), respectively. The core rod (502) is slidably disposed in the extension sleeve (501). The inner end face of the core rod (502) is in contact with the outer end face of the transmission block (603).
2. The lock cylinder that can be connected according to claim 1, characterized in that, The lock cylinder (1) has a keyhole at its axis and several inner pin holes (102) connected to the keyhole. Several outer pin holes (303) are linearly provided at the connecting part of the lock cylinder section (3). The pin mechanism is installed in the inner pin holes (102) and the outer pin holes (303).
3. A lock cylinder that can be connected according to claim 2, characterized in that, The inner end of the lock cylinder (1) is provided with a port (103) that connects to the keyhole, and the outer end of the core rod (502) is slidably disposed in the port (103).
4. A lock cylinder that can be connected according to claim 1, characterized in that, The outer end of the extension sleeve (501) is provided with a set of first key heads (503), the inner end of the lock cylinder (1) is provided with a first key groove (101) that cooperates with the first key heads (503), the inner end of the extension sleeve (501) is provided with a set of second key grooves (504), and the outer end of the rotating sleeve (6) is provided with a second key head (601) that cooperates with the second key grooves (504).
5. A lock cylinder that can be connected according to claim 1, characterized in that, The rotating sleeve (6) has a retaining groove (605) on its circumferential side. A spring retaining ring (8) is provided in the retaining groove (605). The two ends of the spring retaining ring (8) are respectively attached to the inner wall of the dial groove (203) and the outer wall of the dial (7).
6. A lock cylinder that can be connected according to claim 1, characterized in that, The outer end of the rotating sleeve (6) is provided with a limiting ring (606), and the outer end of the transmission block (603) is provided with a connector end (607). The connector end (607) is slidably connected to the limiting ring (606), and the end of the extension rod (5) is in contact with the outer end face of the connector end (607). The outer diameter of the extension rod (5) is consistent with the outer diameter of the connector end (607).