Improved passive electronic lock cylinder

Abstract

The utility model relates to the technical field of locks, in particular to an improved passive electronic lock cylinder, which comprises a positive electrode contact elastic needle, a lock cylinder shell, a magnetic attraction pin, a main board, a coil and a lock pin, the main board, the coil and the lock pin are arranged in the lock cylinder shell, the positive electrode contact elastic needle is arranged at the head of the lock cylinder shell, and the lock cylinder shell is formed by combining a lock cylinder upper shell and a lock cylinder lower shell. The lock cylinder upper shell is fixedly connected with the lock cylinder lower shell through a screw. According to the improved passive electronic lock cylinder, by improving the structure of the passive electronic lock cylinder shell, the manufacturing flexibility, the installation convenience and the maintenance efficiency of the lock cylinder are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an improved passive electronic lock cylinder. Background Technology

[0002] With the continuous advancement of security technology, passive electronic lock cylinders have gained an important position among various security locks due to their characteristics such as not requiring an external power supply, high security, and long lifespan. The applicant filed a Chinese utility model application on June 16, 2020, with application number "202021103864.3" and titled "A Passive Electronic Lock Cylinder and Lock," disclosing a passive electronic lock cylinder and lock. In the absence of power, the solenoid stops working, and the locking pin, under the elastic force of the limiting spring built into the solenoid, is positioned at two locations on the side wall of the lock body assembly.

[0003] At the limiting groove, the limiting spring force ensures that the lock pin will not shift; when the electronic drive part is powered, the solenoid and the T-shaped magnet act together, and through the movement of the solenoid, the lock pin is driven to disengage from the limiting position at the two limiting grooves of the lock body assembly. The rotation of the electronic key drives the lock cylinder assembly and the lock cylinder sleeve assembly to rotate relative to the lock body assembly, thereby realizing the unlocking and locking operations.

[0004] However, in practical applications, the passive electronic lock cylinder, which uses an integral lock cylinder sleeve, has certain limitations in manufacturing, installation, and maintenance. Therefore, to improve the manufacturing flexibility, installation convenience, and maintenance efficiency of the lock cylinder, an improved passive electronic lock cylinder needs to be designed. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides an improved passive electronic lock cylinder. This improved passive electronic lock cylinder significantly enhances the manufacturing flexibility, installation convenience, and maintenance efficiency of the lock cylinder through improvements to the lock cylinder housing structure.

[0006] The technical solution of this utility model is as follows:

[0007] An improved passive electronic lock cylinder includes a positive contact spring, a lock cylinder housing, a magnetic pin, a main board, a coil, and a locking pin. The main board, coil, and locking pin are installed inside the lock cylinder housing. The positive contact spring is installed at the head of the lock cylinder housing. The lock cylinder housing is composed of an upper lock cylinder shell and a lower lock cylinder shell.

[0008] The upper shell of the lock cylinder is fixedly connected to the lower shell of the lock cylinder by screws.

[0009] The upper shell of the lock cylinder has two protrusions, and threaded holes are provided on the end faces of the protrusions.

[0010] The lower shell of the lock cylinder has two grooves, and a central hole is provided in each groove.

[0011] The lower housing head of the lock cylinder has a circular closed structure, with a signal transmission hole and a latching hole, as well as a mounting hole for the positive contact spring pin.

[0012] The lower housing head of the lock cylinder is also provided with a receiving groove for a snap-on protective cover, which is installed in the receiving groove and is flush with the plane of the lower housing head of the lock cylinder.

[0013] The positive contact spring is embedded in the mounting hole of the lower shell of the lock cylinder. An insulating ring is provided between the positive contact spring and the mounting hole. The positive contact spring penetrates the lower shell of the lock cylinder and abuts against the main board. It is used to supply power to the electronic key when the lock is opened or closed.

[0014] The lower shell of the lock cylinder has a positioning hole through which the locking pin is installed. The locking pin passes through the positioning hole and is screwed into one end of the hollow cavity of the coil.

[0015] The coil is made of non-magnetic material, and a spring is contained in the hollow cavity of the coil. The magnetic pin passes through the lower shell of the lock core and abuts against the spring inside the coil.

[0016] The magnetic pin has an irregular shape, including cylindrical, square prism, triangular prism, and hexagonal prism. The hollow cavity of the coil adopts a cavity structure adapted to the magnetic pin.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model discloses an improved passive electronic lock cylinder. The improved passive electronic lock cylinder designs the lock cylinder housing as a combined upper and lower housing structure, allowing the two housing parts to be processed separately during manufacturing. This reduces the overall processing difficulty and improves production efficiency and manufacturing precision. At the same time, this split design also provides greater flexibility for subsequent product upgrades and customized production.

[0019] 2. This utility model discloses an improved passive electronic lock cylinder. The improved passive electronic lock cylinder features a split-type lock cylinder housing. During installation, components such as the positive contact spring, magnetic pin, main board, coil, and locking pin are first installed onto the lower lock cylinder housing. Then, the upper lock cylinder housing is fixed to the mounting opening using screws or other fastening methods, completing the assembly of the entire lock cylinder. This installation method simplifies the installation steps, reduces potential errors during installation, and improves installation efficiency.

[0020] 3. The present invention discloses an improved passive electronic lock cylinder. When the internal components of the lock cylinder malfunction or need to be replaced, the improved passive electronic lock cylinder adopts a split design, which allows for easy disassembly of the upper shell of the lock cylinder and direct repair or replacement of the components inside the lower shell of the lock cylinder, without the need to replace the entire lock cylinder, thereby reducing maintenance costs and time.

[0021] 4. The present invention discloses an improved passive electronic lock cylinder. The improved passive electronic lock cylinder has a snap-on protective cover added to the head of the lower shell of the lock cylinder, which not only improves the appearance of the lock cylinder, but also can integrate additional functions such as infrared sensors or indicator lights as needed, such as providing lock cylinder status indication and enhancing security monitoring, thereby further expanding the application scenarios and functions of the lock cylinder. Attached Figure Description

[0022] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0023] In the attached diagram:

[0024] Figure 1 This is one of the three-dimensional explosion diagrams of this utility model;

[0025] Figure 2 This is the second three-dimensional explosion diagram of this utility model;

[0026] Figure 3 This is a schematic diagram of the lock cylinder lower shell head structure of this utility model;

[0027] Figure 4 This is a perspective view of the assembled components of this utility model;

[0028] Figure 5 This is a schematic diagram of the unlocked state of this utility model;

[0029] Figure 6 This is a schematic diagram of the locked state of this utility model;

[0030] Figure 7 This is a schematic diagram of the magnetic attracting pin and coil combination of this utility model;

[0031] The components represented by the various reference numerals in the diagram are:

[0032] This utility model includes: 1. Positive contact spring pin, 2. Snap-on protective cover, 3. Magnetic pin, 4. Main board, 5. Lock cylinder upper shell, 6. Coil, 7. Locking pin, 8. Lock cylinder lower shell, 9. Screw, 10. Protrusion, 11. Groove, 12. Center hole, 13. Signal transmission hole, 14. Snap-on hole, 15. Mounting hole, 16. Receiving groove, 17. Spring, 18. Insulating ring. Detailed Implementation

[0033] like Figures 1-7As shown, an improved passive electronic lock cylinder includes a positive contact spring 1, a lock cylinder housing, a magnetic pin 3, a main board 4, a coil 6, and a locking pin 7. The main board 4, coil 6, and locking pin 7 are installed inside the lock cylinder housing. The positive contact spring 1 is installed at the head of the lock cylinder housing. The lock cylinder housing is composed of an upper lock cylinder shell 5 and a lower lock cylinder shell 8.

[0034] The upper shell 5 of the lock cylinder is fixedly connected to the lower shell 8 of the lock cylinder by screws 9.

[0035] The upper shell 5 of the lock cylinder is provided with two protrusions 10, and threaded holes are provided on the end face of the protrusions.

[0036] The lower housing 8 of the lock cylinder is provided with two grooves 11, and a central hole 12 is provided in the groove.

[0037] The lower housing 8 of the lock cylinder has a circular closed structure at its head, with a signal transmission hole 13 and a latching hole 14, and also has a mounting hole 15 for the positive contact spring pin 1.

[0038] The lower housing 8 of the lock cylinder is also provided with a receiving groove 16 for a snap-on protective cover 2. The snap-on protective cover 2 is installed in the receiving groove 16 and is flush with the plane of the lower housing 8 of the lock cylinder.

[0039] The positive contact spring pin 1 is embedded in the mounting hole 15 at the head of the lower housing 8 of the lock cylinder. An insulating ring 18 is provided between the positive contact spring pin 1 and the mounting hole 15. The positive contact spring pin 1 penetrates the lower housing 8 of the lock cylinder and abuts against the main board 4. It is powered by the electronic key when the lock is opened or closed. After installation, the positive contact spring pin 1 is flush with the plane of the head of the lower housing 8 of the lock cylinder.

[0040] The lower housing 8 of the lock cylinder has a positioning hole through which the locking pin 7 is installed. The locking pin 7 passes through the positioning hole and is screwed into one end of the hollow cavity of the coil 6.

[0041] The coil 6 is made of non-magnetic material. The cavity inside the coil 6 contains a spring 17. The magnetic pin 3 passes through the lower shell 8 of the lock core and abuts against the spring 17 inside the coil 6.

[0042] The magnetic pin 3 has an irregular shape, including cylindrical, square prism, triangular prism, and hexagonal prism. The hollow cavity in the coil 6 adopts a cavity structure adapted to the magnetic pin 3.

[0043] The main improvement of the improved passive electronic lock cylinder is that the lock cylinder housing used to install other components is set as a split type. That is, the lock cylinder housing is composed of the upper lock cylinder shell 5 and the lower lock cylinder shell 8, which are combined by screws 9 or other fastening methods to form a complete lock cylinder shell.

[0044] In this embodiment, the improved passive electronic lock cylinder has a mounting window formed on the lower housing 8 for mounting the main board 4 and the coil 6. The coil 4 and coil 6 are installed into the lower housing 8 through the mounting window, ensuring electrical connection and mechanical fit between them.

[0045] The head of the magnetic pin 3 is embedded in the stepped groove of the lower housing 8 of the lock cylinder, and the end penetrates through the lower housing 8 and inserts into the hollow cavity of the coil 6, abutting against the spring 17. The extension and retraction of the magnetic pin 3 is achieved by the coil 6. The coil 6 is made of non-magnetic material to avoid unnecessary magnetic interference with the magnetic pin 3, ensuring the stability and reliability of the lock cylinder.

[0046] This improved structure can be used in the lock cylinder of the Chinese utility model application with application number "202021103864.3" entitled "A Passive Electronic Lock Cylinder and Lock", and can also be used in other similar lock cylinder structures. When the electronic key is inserted, the electronic key supplies power to the coil 6 through the lock cylinder main board 4, generating magnetic force. The coil 6 and the magnetic pin 3 attract and engage with each other. After the magnetic pin 3 abuts against the stepped hole of the lower lock cylinder shell 8 and reaches the restricted position, the magnetic pin 3 is locked, realizing the magnetic pin 3 retracting into the stepped groove of the lower lock cylinder shell 8. At this time, the coil 6 drives the locking pin 7 to compress the spring 17, both moving closer to the magnetic pin 3. Finally, the coil 6 abuts against the inner wall of the lower lock cylinder shell 8 and locks, realizing the locking pin 7 retracting into the positioning hole of the lower lock cylinder shell 8, realizing the unlocking operation. The locking operation is the reverse of the above process.

[0047] Due to the adoption of a split lock cylinder housing design, the improved passive electronic lock cylinder in this embodiment can have its upper lock cylinder housing 5 and lower lock cylinder housing 8 processed separately during the manufacturing process, which improves production efficiency and manufacturing precision.

[0048] During installation, simply install each component into the lower housing 8 of the lock cylinder, and then fix the upper housing 5 of the lock cylinder with screws 9, simplifying the installation process.

[0049] During maintenance, if internal components need to be replaced or repaired, only the upper shell 5 of the lock cylinder needs to be removed, without replacing the entire lock cylinder, thus reducing maintenance costs and time.

[0050] This improved passive electronic lock cylinder, by adopting a split lock cylinder housing design, significantly improves the manufacturing flexibility, installation convenience, and maintenance efficiency of the lock cylinder, while retaining the advantages of passive electronic lock cylinders such as no need for external power supply, high security, and long lifespan.

Claims

1. An improved passive electronic lock cylinder, comprising a positive contact spring pin (1), a lock cylinder housing, a magnetic pin (3), a main board (4), a coil (6), and a locking pin (7), wherein the main board (4), the coil (6), and the locking pin (7) are installed inside the lock cylinder housing, and the positive contact spring pin (1) is installed at the head of the lock cylinder housing, characterized in that, The lock cylinder housing is composed of an upper lock cylinder housing (5) and a lower lock cylinder housing (8).

2. The improved passive electronic lock cylinder according to claim 1, characterized in that, The upper shell (5) of the lock cylinder is fixedly connected to the lower shell (8) of the lock cylinder by screws (9).

3. An improved passive electronic lock cylinder according to claim 1, characterized in that, The upper shell (5) of the lock cylinder is provided with two protrusions (10), and threaded holes are provided on the end face of the protrusions.

4. An improved passive electronic lock cylinder according to claim 1, characterized in that, The lower shell (8) of the lock cylinder is provided with two grooves (11), and a central hole (12) is provided in the groove.

5. An improved passive electronic lock cylinder according to claim 1, characterized in that, The lower shell (8) of the lock cylinder has a circular closed structure at the head, with a signal transmission hole (13) and a buckle hole (14), and also has a mounting hole (15) for the positive contact spring pin (1).

6. An improved passive electronic lock cylinder according to claim 1, characterized in that, The lower shell (8) of the lock cylinder is also provided with a receiving groove (16) for a snap-on protective cover (2), which is installed in the receiving groove (16) and is flush with the head plane of the lower shell (8).

7. An improved passive electronic lock cylinder according to claim 1, characterized in that, The positive contact spring pin (1) is embedded in the mounting hole (15) at the head of the lower shell (8) of the lock cylinder. An insulating ring (18) is provided between the positive contact spring pin (1) and the mounting hole (15). The positive contact spring pin (1) penetrates the lower shell (8) of the lock cylinder and abuts against the main board (4). When the lock is opened or closed, it is powered by the electronic key.

8. An improved passive electronic lock cylinder according to claim 2, characterized in that, The lower shell (8) of the lock cylinder has a positioning hole through which the locking pin (7) is installed. The locking pin (7) passes through the positioning hole and is screwed into one end of the hollow cavity of the coil (6).

9. An improved passive electronic lock cylinder according to claim 1, characterized in that, The coil (6) is made of non-magnetic material. The hollow cavity of the coil (6) contains a spring (17). The magnetic pin (3) passes through the lower shell (8) of the lock core and abuts against the spring (17) inside the coil (6).

10. An improved passive electronic lock cylinder according to claim 9, characterized in that, The magnetic pin (3) has an irregular shape, including cylindrical, quadrangular, triangular and hexagonal prisms. The hollow cavity in the coil (6) adopts a cavity structure that is compatible with the magnetic pin (3).

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