Electric door lock with lock cylinder convenient to replace
By designing the lock cylinder structure and utilizing the cooperation of elastic elements and radial protrusions, the lock cylinder can be easily disassembled and assembled, solving the problem of cumbersome replacement of existing electric door lock cylinders and improving replacement efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN AOXUE AUTOMOBILE ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
Replacing the lock cylinder of existing electric door locks is a cumbersome process, making it difficult to replace them quickly and conveniently.
A lock cylinder structure was designed. By pressing the lock cylinder to compress the elastic element, the radial protrusion is made to leave the notch. The spindle is rotated to align the radial protrusion with the radial space, and the lock cylinder is taken out along the axial direction. During installation, the elastic element makes the radial protrusion lock into the notch, thus realizing convenient disassembly and assembly of the lock cylinder.
It enables convenient disassembly and assembly of the lock cylinder, is simple to operate, avoids accidental disassembly, and improves replacement efficiency.
Smart Images

Figure CN224161553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lock, and more particularly to an electric door lock with a convenient lock cylinder replacement. Background Technology
[0002] Chinese utility patent CN215245230U discloses a lock for motorcycles or electric vehicles with a replaceable lock cylinder function. It has a through hole in the lock shell, and a tool (such as a needle) needs to be inserted into the through hole to push the lock plate into the radial groove. The lock plate retracts into the radial groove so that it is not blocked by the limiting step, so that the lock cylinder can be axially moved out of the lock cylinder hole and taken out. The operation is cumbersome. Utility Model Content
[0003] In view of the technical problems existing in the background art, the present utility model aims to provide an electric door lock with convenient lock cylinder replacement, which can be removed from the lock shell by pressing and rotating the lock cylinder.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This type of electric door lock with convenient lock cylinder replacement includes a rotor, a moving contact piece, a lock cylinder, a lock shell, and a socket. The rotor includes a body and a plug. The moving contact piece is sleeved on the plug. An elastic element is provided between the moving contact piece and the body. The rotor drives the moving contact piece to rotate, and the lock cylinder drives the rotor to rotate. The lock cylinder includes a spindle. The lock shell has a mounting hole for the spindle to pass through and rotate. The socket has a slot for the plug to be inserted and rotated. The lock cylinder also includes a radial protrusion. The spindle has the radial protrusion extending radially along the rotation axis. The lock shell includes an inner shell. The inner shell has the mounting hole. The mounting hole extends radially along the rotation axis of the spindle, providing a radial space for the radial protrusion to pass through. The bottom of the inner shell has a notch for the radial protrusion to enter axially. There is a movement gap between the bottom of the slot and the plug, allowing the plug to move axially along the rotation axis.
[0005] In this scheme, during disassembly, pressing the lock cylinder compresses the elastic element, causing the radial protrusion to leave the notch. Rotating the spindle aligns the radial protrusion with the radial space, and the lock cylinder is removed axially. During installation, the lock cylinder is inserted axially, and pressing the lock cylinder compresses the elastic element, causing the radial protrusion to rotate and engage in the notch. The compression of the elastic element obtains axial space, and the main body stably seals the notch under the action of the elastic element.
[0006] Preferably, the lock case further includes an outer shell, the socket is snapped into the outer shell, and the outer shell is provided with a first limiting protrusion and a second limiting protrusion. The first limiting protrusion is used to abut against the top of the inner shell, and the second limiting protrusion is used to abut against the side of the inner shell.
[0007] In this design, the first limiting protrusion cooperates with the socket to restrict the axial displacement of the inner shell, and the second limiting protrusion restricts the rotation of the inner shell.
[0008] Preferably, the outer casing is provided with connecting ears or barbs.
[0009] In this solution, the connecting lugs are tightened, or the barbs are inserted into the corresponding slots to complete the assembly of the ignition lock.
[0010] Preferably, the main body is provided with a receiving hole for accommodating the elastic element.
[0011] In this design, the receiving hole limits the elastic element, making installation convenient.
[0012] The beneficial effects of this utility model are that the axial space is obtained by compressing the elastic element, and the main body stably seals the gap under the action of the elastic element. Disassembly and assembly are convenient; simply press and rotate the lock cylinder. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description
[0013] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a cross-sectional view of the present invention.
[0016] Figure 3 This is a cross-sectional view of the outer shell of this utility model.
[0017] Figure 4 This is a bottom view of the inner shell in this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the notch in this utility model.
[0019] In the diagram: 1. Rotor; 2. Main body; 3. Plug; 4. Elastic element; 5. Lock cylinder; 6. Spindle; 7. Lock housing; 8. Mounting hole; 9. Socket; 10. Slot; 11. Radial protrusion; 12. Inner shell; 13. Radial space; 14. Notch; 15. Outer shell; 16. First limiting protrusion; 17. Second limiting protrusion; 18. Connecting ear; 19. Accommodation hole; 20. Moving contact piece. Detailed Implementation
[0020] 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 implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0022] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0023] See appendix Figure 1-5 An embodiment of this invention provides an electric door lock with convenient lock cylinder replacement, comprising a rotor 1, a moving contact 20, a lock cylinder 5, a lock housing 7, and a socket 9. The rotor 1 includes a body 2 and a plug 3. The moving contact 20 is sleeved on the plug 3. An elastic element 4 is provided between the moving contact 20 and the body 2. The body 2 has a receiving hole 19 for accommodating the elastic element 4. The rotor 1 drives the moving contact 20 to rotate, and the lock cylinder 5 drives the rotor 1 to rotate. The lock cylinder 5 includes a spindle 6. The lock housing 7 has a mounting hole 8 for the spindle 6 to pass through and rotate. The socket 9 has a slot 10 for the plug 3 to be inserted and rotated.
[0024] The lock cylinder 5 further includes a radial protrusion 11. The spindle 6 has the radial protrusion 11 extending radially along the rotation axis. The lock housing 7 includes an inner housing 12 and an outer housing 15. The inner housing 12 is provided with the mounting hole 8. The mounting hole 8 extends radially along the rotation axis of the spindle 6 and has a radial space 13 through which the radial protrusion 11 passes. The bottom end of the inner housing 12 is provided with a notch 14 for the radial protrusion 11 to enter axially. There is a moving gap between the bottom of the slot 10 and the plug 3 for the plug 3 to move axially along the rotation axis. The socket 9 is engaged with the outer housing 15. The outer housing 15 is provided with a first limiting protrusion 16 and a second limiting protrusion 17. The first limiting protrusion 16 is used to abut against the top of the inner housing 12, and the second limiting protrusion 17 is used to abut against the side of the inner housing 12. The outer housing 15 is provided with a connecting lug 18 or a barb.
[0025] In this embodiment, during installation, the inner shell 12 is first inserted into the outer shell 15, with the top of the inner shell 12 abutting against the first limiting protrusion 16. Then, the rotor 1 is inserted, the elastic element 4 is placed into the receiving hole 19, the moving contact piece 20 is sleeved on the plug 3 and abuts against the elastic element 4, the socket 9 is snapped into the outer shell 15, the lock cylinder 5 is inserted along the mounting hole 8, the lock cylinder 5 is pressed to compress the elastic element 4, and the spindle 6 is rotated to snap the radial protrusion 11 into the notch 14, completing the overall assembly of the electric door lock. Finally, the electric door lock is completed by tightening the connecting lug 18 or by inserting the barb deformation into the slot. When installing or removing the lock cylinder 5 on the motorcycle, press down on the elastic element 4 to compress the radial protrusion 11, causing it to exit the notch 14 axially. Rotate the lock cylinder 5 to align the radial protrusion 11 with the radial space 13, and remove the lock cylinder 5 from the mounting hole 8. The lock cylinder 5 and the rotor 1 are plugged into each other. The socket 9 is a mature technology, with two sets of inserts connected to it. When the two ends of the moving contact piece 20 contact the two sets of inserts, the two sets of inserts are connected, completing the ignition. The rotation direction for disassembling the lock cylinder 5 is opposite to the rotation direction for unlocking to avoid accidental disassembly. The notch 14 allows the radial protrusion 11 to swing around the rotation axis.
[0026] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.
Claims
1. An electric door lock with convenient lock cylinder replacement, comprising: The rotor (1) includes a body (2) and a plug (3); A movable contact piece (20) is sleeved on the plug (3), and an elastic element (4) is provided between the movable contact piece (20) and the main body (2). The rotor (1) drives the movable contact piece (20) to rotate. The lock cylinder (5) drives the rotor (1) to rotate, and the lock cylinder (5) includes a spindle (6). Lock housing (7) having mounting holes (8) through which the spindle (6) passes and rotates; The socket (9) is provided with a slot (10) for the plug (3) to be inserted and rotated. Its features are: The lock cylinder (5) also includes a radial protrusion (11), the spindle (6) has the radial protrusion (11) extending radially along the rotation axis, the lock shell (7) includes an inner shell (12), the inner shell (12) is provided with the mounting hole (8), the mounting hole (8) extends radially along the rotation axis of the spindle (6) and has a radial space (13) through which the radial protrusion (11) passes, the bottom end of the inner shell (12) is provided with a notch (14) for accommodating the radial protrusion (11), and there is a moving gap between the bottom of the slot (10) and the plug (3) for the plug (3) to move axially along the rotation axis.
2. The electric door lock with convenient lock cylinder replacement as described in claim 1, characterized in that: The lock case (7) also includes an outer shell (15), the socket (9) is snapped into the outer shell (15), and the outer shell (15) is provided with a first limiting protrusion (16) and a second limiting protrusion (17). The first limiting protrusion (16) is used to abut against the top of the inner shell (12), and the second limiting protrusion (17) is used to abut against the side of the inner shell (12).
3. The electric door lock with convenient lock cylinder replacement as described in claim 1, characterized in that: The outer shell (15) is provided with connecting ears (18) or barbs.
4. The electric door lock with convenient lock cylinder replacement as described in claim 1, characterized in that: The main body (2) is provided with a receiving hole (19) for accommodating the elastic element (4).
Citation Information
Patent Citations
Motorcycle or electric vehicle lock with replaceable lock cylinder function
CN215245230U