Sealing washer of metal lock cylinder
By designing a detachable sealing ring sleeve and an automatic opening and closing toggle flap structure, the problem of degradation of sealing performance of traditional metal lock cores is solved, ensuring the seal reliability and service life of the lock core in humid or dusty environments.
Patent Information
- Application Number
- CN202421702466.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The sealing structure of traditional metal lock cores is prone to aging and deforming, resulting in a degradation of sealing performance, especially in unstable in humid or dusty environments.
A removable and replaceable seal ring sleeve is designed with an automatic opening and closing toggle flap and rotating inner disc. It is connected to the torsion spring through a hinge to ensure that the seal ring sleeve is closely matched with the lock core and automatically open and close when the key or lock tongue is inserted and pulled out.
It realizes the long-term sealing effect of the lock core, extends the service life, prevents dust and moisture from intruding, and improves sealing performance and reliability.
Smart Images
Figure CN223089083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lock parts, in particular to a sealing washer for a metal lock core. Background Technique
[0002] With the rapid development of technology and the increasing demand for safety performance by people, as an important component for protecting property and privacy security, the performance and reliability of metal lock cores have received extensive attention. In the design of metal lock cores, the sealing performance is a crucial indicator, which is directly related to the waterproof, dustproof, rustproof and other performances of the lock core, as well as the service life of the lock core. The traditional sealing method of metal lock cores often adopts a fixed sealing structure, which is prone to problems such as aging and deformation after long-term use, resulting in a decline in sealing performance and even loss of sealing effect. Especially in harsh environments such as humidity and dust, the instability of the sealing performance will be further aggravated. Content of the Utility Model
[0003] The purpose of the utility model is to provide a sealing washer for a metal lock core to solve the problem of poor sealing performance of the metal lock core proposed in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A sealing washer for a metal lock core, including a metal lock core, a detachable and replaceable sealing ring sleeve is installed at one end of the metal lock core, and two groups of automatically opening and closing toggle flaps are symmetrically installed in the sealing ring sleeve;
[0006] A rotating inner disc is rotatably installed in the sealing ring sleeve, and the two groups of toggle flaps are respectively connected to the rotating inner disc through hinge hinges;
[0007] A torsion spring for popping open the toggle flap is installed on the rotating shaft of each hinge hinge.
[0008] Preferably, a lock hole along the axial direction is opened at one end of the metal lock core close to the sealing ring sleeve.
[0009] Preferably, a connecting head for installing the sealing ring sleeve is provided at one end of the metal lock core.
[0010] Preferably, the inner diameter of the sealing ring sleeve is adapted to the outer diameter of the connecting head and the two are in interference fit.
[0011] Preferably, a limiting ring for limiting the toggle flap is installed at one end of the sealing ring sleeve away from the metal lock core.
[0012] Preferably, the toggle flap is assembled by a metal thin sheet and a rubber sleeve, and the thickness of the rubber sleeve is 0.5-1 mm.
[0013] Preferably, each group of the toggle flaps is connected to the inner wall of the rotating inner disk by two sets of hinge hinges and a torsion spring.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. In the sealing gasket of the present metal lock core, the sealing ring sleeve installed at one end of the metal lock core is designed to be detachable and replaceable. When the sealing performance of the sealing ring sleeve decreases due to long-term use or wear, the user can easily disassemble and replace it with a new one, thereby ensuring the long-term sealing effect of the lock core and extending the service life of the lock core; two sets of automatically opening and closing toggle flaps symmetrically installed in the sealing ring sleeve are connected to the rotating inner disk through hinge hinges. When the key or the lock tongue is inserted into the lock core, the toggle flaps can automatically open to allow the key or the lock tongue to pass through smoothly; when the key or the lock tongue is pulled out, the toggle flaps automatically close under the action of the torsion spring and return to the sealed state, effectively preventing the intrusion of external substances such as dust and moisture. The torsion spring installed on the rotating shaft of each set of hinge hinges provides the driving force for the toggle flaps to spring open, ensuring that the toggle flaps can quickly and reliably close when not affected by external forces, thereby ensuring the sealing performance of the sealing gasket.
[0016] 2. In the sealing gasket of the present metal lock core, the inner diameter of the sealing ring sleeve is adapted to the outer diameter of the connecting head and the two are in interference fit, ensuring a tight connection between the sealing ring sleeve and the metal lock core, effectively preventing the intrusion of external substances and improving the sealing performance.
[0017] 3. In the sealing gasket of the present metal lock core, a limiting ring for limiting the toggle flaps is installed at one end of the sealing ring sleeve away from the metal lock core, ensuring that the toggle flaps can open and close normally under the drive of the rotating inner disk, and at the same time avoiding damage or failure caused by excessive opening or closing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. They are further explained in detail together with the embodiments of the present utility model, but do not constitute a limitation to the present utility model.
[0019] Figure 1 is a schematic exploded view of the present utility model;
[0020] Figure 2 is a schematic structural view of the present utility model;
[0021] Figure 3 is a schematic cross-sectional structural view of the present utility model;
[0022] Figure 4 is a schematic sectional view of the present utility model.
[0023] Meanings of each label in the figure:
[0024] 10. Metal lock core; 11. Lock hole; 12. Connector;
[0025] 20. Sealing ring sleeve; 21. Rotating inner disk; 22. Limit ring;
[0026] 30. Poking flap; 31. Hinge hinge; 32. Torsion spring. Specific implementation manners
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model and the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0029] A sealing washer for a metal lock core, as Figures 1 - 4As shown in the figure, it includes a metal lock core 10. At one end of the metal lock core 10, a detachable and replaceable sealing ring sleeve 20 is installed. Inside the sealing ring sleeve 20, two groups of automatically opening and closing toggle flaps 30 are symmetrically installed; a rotating inner disk 21 is rotatably installed inside the sealing ring sleeve 20, and the two groups of toggle flaps 30 are respectively connected to the rotating inner disk 21 through hinge hinges 31; on the rotating shaft of each hinge hinge 31, a torsion spring 32 for pushing the toggle flap 30 to open is installed. The sealing ring sleeve 20 installed at one end of the metal lock core 10 is designed to be detachable and replaceable. When the sealing performance of the sealing ring sleeve 20 decreases due to long-term use or wear, users can easily disassemble and replace it with a new one, so as to ensure the long-term sealing effect of the lock core and extend the service life of the lock core; the two groups of automatically opening and closing toggle flaps 30 symmetrically installed inside the sealing ring sleeve 20 are connected to the rotating inner disk 21 through hinge hinges 31. When the key or lock tongue is inserted into the lock core, the toggle flap 30 can automatically open to allow the key or lock tongue to pass through smoothly; when the key or lock tongue is pulled out, the toggle flap 30 automatically closes under the action of the torsion spring 32 and returns to the sealed state, effectively preventing the intrusion of external substances such as dust and moisture. The torsion spring 32 installed on the rotating shaft of each hinge hinge 31 provides the power for the toggle flap 30 to open, ensuring that the toggle flap 30 can quickly and reliably close when not affected by external forces, thus ensuring the sealing performance of the sealing gasket.
[0030] Furthermore, at one end of the metal lock core 10 close to the sealing ring sleeve 20, an axial lock hole 11 is opened, and a connection head 12 for installing the sealing ring sleeve 20 is provided at one end of the metal lock core 10, so that the sealing ring sleeve 20 can be firmly installed on the metal lock core.
[0031] Specifically, the inner diameter of the sealing ring sleeve 20 is adapted to the outer diameter of the connection head 12, and the two are in interference plug-in fit, ensuring the tight connection between the sealing ring sleeve 20 and the metal lock core 10, effectively preventing the intrusion of external substances, and improving the sealing performance.
[0032] Among them, a limiting ring 22 for limiting the toggle flap 30 is installed at one end of the sealing ring sleeve 20 away from the metal lock core 10, ensuring that the toggle flap 30 can open and close normally under the drive of the rotating inner disk 21, and at the same time avoiding damage or failure caused by its excessive opening or closing.
[0033] It is worth noting that the toggle flap 30 is assembled by a metal sheet and a rubber sleeve, and the thickness of the rubber sleeve is 0.5-1 mm, so that the toggle flap 30 has both sufficient strength and good sealing performance.
[0034] In addition, each set of toggle flaps 30 is connected to the inner wall of the rotating inner disk 21 through two sets of hinge hinges 31 and torsion springs 32, enhancing the connection stability between the toggle flaps 30 and the rotating inner disk 21, and at the same time ensuring that the toggle flaps 30 can open and close smoothly and reliably.
[0035] The working principle of the sealing washer of this metal lock core: When the user needs to open the lock, insert the key or the lock tongue into the metal lock core 10. As the key or the lock tongue is inserted, the two sets of automatically opening and closing toggle flaps 30 in the sealing ring sleeve 20 will be subjected to external forces. Since a torsion spring 32 is installed on the rotating shaft of each set of hinge hinges 31, the toggle flaps 30 can automatically open when subjected to external forces, allowing the key or the lock tongue to pass through smoothly. When the key or the lock tongue is pulled out, there is no external force acting on the toggle flaps 30. At this time, the torsion spring 32 installed on the rotating shaft of each set of hinge hinges 31 begins to play a role, providing the power for the toggle flaps 30 to spring open. Under the action of the torsion spring 32, the toggle flaps 30 will automatically close and return to the sealed state. The closed toggle flaps 30 effectively prevent the intrusion of external substances such as dust and moisture, ensuring the sealing performance of the lock core.
[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealing washer for a metal lock core, comprising a metal lock core (10), characterized in that: A detachable and replaceable sealing ring sleeve (20) is installed at one end of the metal lock core (10), and two groups of automatically opening and closing toggle flaps (30) are symmetrically installed inside the sealing ring sleeve (20); A rotating inner disc (21) is rotatably installed inside the sealing ring sleeve (20), and the two groups of toggle flaps (30) are respectively connected to the rotating inner disc (21) through hinge joints (31); A torsion spring (32) for springing open the toggle flap (30) is installed on the rotating shaft of each hinge joint (31).
2. The sealing washer for the metal lock core according to claim 1, characterized in that: A lock hole (11) along the axial direction is provided at one end of the metal lock core (10) close to the sealing ring sleeve (20).
3. The sealing washer for the metal lock core according to claim 1, characterized in that: A connection head (12) for installing the sealing ring sleeve (20) is provided at one end of the metal lock core (10).
4. The sealing washer for the metal lock core according to claim 3, characterized in that: The inner diameter of the sealing ring sleeve (20) is adapted to the outer diameter of the connection head (12), and the two are in interference plug-in fit.
5. The sealing washer for the metal lock core according to claim 1, characterized in that: A limiting ring (22) for limiting the toggle flap (30) is installed at one end of the sealing ring sleeve (20) away from the metal lock core (10).
6. The sealing washer for the metal lock core according to claim 1, characterized in that: The toggle flap (30) is assembled by a metal thin sheet and a rubber sleeve, and the thickness of the rubber sleeve is 0.5-1 mm.
7. The sealing washer of the metal lock core according to claim 1, characterized in that: Each group of toggle flaps (30) is connected to the inner wall of the rotating inner disc (21) through two groups of hinge joints (31) and torsion springs (32).