electrically controlled lock

Abstract

The utility model discloses an electric control lock, including lock shell, lock core and two pieces of independent conductor, one end surface of lock shell is equipped with the mounting groove, be equipped with two conducting feet in the mounting groove, two conducting feet are electrically connected with two pieces of conductor respectively, be equipped with the conducting part in the mounting groove, and the conducting part is along the radial migration of lock shell and is established, and one end of conducting part passes through the mounting groove and is in contact with the outer wall of lock core, and the other end is equipped with elastic part between the mounting groove, and the outer wall of lock core is equipped with the on -off groove, when the lock core rotates to one end of conducting part and enters the on -off groove, conducting part is under the action of elastic part and is close to the direction of lock core and slides, and conducting part is contacted with conducting foot, and two pieces of conductor are conducted. The utility model discloses through the mounting groove and contains conducting part and conducting foot, and utilizes elastic part and drives conducting part and conducting foot contact, and the structure is simple, and the stable conduction is stable, and the assembly is convenient.

Description

Technical Field

[0001] This utility model relates to the field of electric lock technology, and specifically to an electric lock. Background Technology

[0002] Electric locks are widely used in elevators, instruments and equipment and other fields. They achieve circuit switching by rotating the lock cylinder to drive the conductive parts to contact or separate from the conductive feet.

[0003] An existing technology discloses an ultra-thin electronically controlled lock (publication number: CN205531757U), which uses the rotation of the lock cylinder to drive the movement of a connecting pin. The connecting pin drives the conductive element on the conductive seat to move along the groove of the middle lock shell. When the conductive element moves to the first and second conductive plates on the conductive plate seat, it connects the first and second conductive plates, thus achieving conductivity. In this solution, the contact surfaces of the conductive element and the conductive plate are both planar structures, relying on spring pressure to achieve tight contact. Although this improves the vibration resistance to a certain extent, the conductive element needs to be installed on the conductive seat, which in turn needs to be connected to the lock cylinder via the connecting pin. The conductive plate seat also needs to be fitted into the outer lock shell. This results in many parts, complex assembly relationships, and inconvenient assembly. At the same time, the contact between the conductive element and the conductive plate depends on the movement transmission of multiple intermediate components such as the conductive seat and the connecting pin. The kinematic chain is relatively long, and the conductivity stability is easily affected by the wear or loosening of intermediate components during long-term use.

[0004] Existing technology also discloses an ultra-thin power lock (publication number: CN205211646U), which uses the rotation of the lock cylinder to drive the rotation of the lever. The cylindrical conductive element at the end of the lever moves along the inner wall of the outer lock shell. When the conductive element rolls onto the arc surface of a pair of vertically arranged conductive feet, the pair of conductive feet are connected. In this solution, the conductive element is cylindrical and the conductive feet are arc surfaces, resulting in high contact reliability. However, the conductive feet need to be installed in pairs vertically on the outer lock shell, the conductive element needs to be fixed to the end of the lever, and the lever needs to pass through the groove on the middle lock shell to connect with the lock cylinder. The overall structure is relatively complex and the assembly efficiency is low. Moreover, the conduction only occurs at the position of the conductive feet at the end of the groove. When the lock cylinder rotates in the middle position, both pairs of conductive feet are in an open state. The conduction state is greatly limited by the rotation angle of the lock cylinder. In a vibration environment, if the lock cylinder undergoes a slight angle change, the conductive element can easily detach from the arc surface of the conductive feet, resulting in power failure. Utility Model Content

[0005] The purpose of this invention is to provide an electronically controlled lock to solve the problems of insufficient conduction stability and inconvenient assembly in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: An electronically controlled lock includes a lock shell, a lock cylinder, and two independent conductors. One end face of the lock shell has a mounting groove containing two conductive feet, each electrically connected to one of the two conductors. A conductive element is also provided within the mounting groove, sliding radially along the lock shell. One end of the conductive element passes through the mounting groove and abuts against the outer wall of the lock cylinder, while the other end has an elastic element between it and the mounting groove. The outer wall of the lock cylinder has a connecting groove. When the lock cylinder rotates until one end of the conductive element enters the connecting groove, the conductive element slides closer to the lock cylinder under the action of the elastic element, contacting the conductive feet and establishing electrical connection between the two conductors.

[0007] This design directly accommodates the conductive components and conductive feet through an installation slot. The conductive components are directly driven by the elastic element to contact the conductive feet, eliminating the need for intermediate transmission components such as conductive bases, connecting pins, and actuating rods. The structure is simple and easy to assemble. At the same time, the conductive components directly cooperate with the outer wall of the lock cylinder, resulting in a short motion chain and high conductivity stability.

[0008] Preferably, the conductive element has conductive shafts on both sides, and the conductive foot has a contact that extends into the mounting groove. When the conductive element slides closer to the lock cylinder, the conductive shaft abuts against the contact. This design achieves reliable contact between the conductive element and the conductive foot through the cooperation of the conductive shaft and the contact, further improving the conductivity stability.

[0009] Preferably, the mounting groove is a sliding groove that opens towards the side of the lock cylinder. This design guides the sliding of the conductive component through the sliding groove, ensuring smooth movement of the conductive component and further guaranteeing stable conductivity.

[0010] Preferably, the mounting groove has symmetrical slots on both sides of the opening, and the two conductive feet are respectively secured in the two slots. This design secures the conductive feet by means of slots, and during installation, the conductive feet only need to be snapped into the slots, making assembly convenient and ensuring accurate positioning of the conductive feet.

[0011] Preferably, the end face of the conductive element that abuts against the lock cylinder has a convex curved surface structure. This design reduces friction between the end of the conductive element and the outer wall of the lock cylinder, ensuring smooth rotation of the lock cylinder, while also reducing wear and extending its service life.

[0012] Preferably, the connecting groove has a preset length along the circumference of the lock cylinder, and the preset length is greater than the end dimension of the conductive element that abuts against the lock cylinder. This design ensures that when the lock cylinder rotates slightly within the length of the connecting groove, the conductive element remains within the connecting groove, guaranteeing continuous circuit conduction and improving vibration resistance.

[0013] Preferably, the connecting groove has a guide surface on one side along the rotation direction of the lock cylinder. The guide surface is a transition surface located between the bottom of the connecting groove and the outer wall of the lock cylinder. This design guides the conductive component to smoothly exit the connecting groove through the guide surface, avoiding jamming and improving operational reliability.

[0014] Preferably, the top of each conductive foot is provided with a conductive block, and the conductive blocks of the two conductive feet are respectively welded and fixed to the two conductors. This solution achieves a reliable electrical connection between the conductive feet and the conductors through plug-in and then welding, and has a simple structure and is easy to assemble.

[0015] Preferably, the two conductors are disposed at the end of the lock housing where the mounting groove is located, and terminal blocks are connected to the two conductors. This design facilitates the connection of external wiring to the conductors via the terminal blocks, making installation and use convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the bottom internal structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation structure of the conductive component and the conductive pin in an embodiment of this utility model; Figure 4 This is a schematic diagram of the installation structure of the conductive component and the lock cylinder in an embodiment of this utility model; Figure 5 This is a schematic diagram of the lock shell structure in an embodiment of this utility model.

[0017] In the diagram: 1. Lock body; 2. Lock shell; 3. Lock cylinder; 4. Support body; 5. Conductive component; 6. Conductive foot; 7. Mounting groove; 8. Elastic component; 9. Connecting groove; 10. Conductive shaft; 11. Contact; 12. Slot; 13. Conductive block; 14. Terminal block; 15. Guide surface; 16. Raised ring; 17. Nut; 18. Raised block; 19. Groove; 20. Plate; 21. Bottom cover; 22. Conductor; 23. Opening. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figures 1 to 5 The electrically controlled lock shown includes a lock body 1, a lock shell 2, a lock cylinder 3, a conductive element 5, a conductive foot 6, and two independent conductors 22.

[0020] The lock body 1 is a tubular structure. A protruding ring 16 is provided on the outer wall of one end of the lock body 1, and a nut 17 is screwed onto the outer wall of the lock body 1. During installation, the lock body 1 is passed through the mounting hole on the equipment mounting panel, and the mounting panel is clamped by the protruding ring 16 and the nut 17 to fix the lock body 1. The inner wall of the lock body 1 has several protrusions 18. The lock shell 2 is located inside the lock body 1, and the outer wall of the lock shell 2 has grooves 19 corresponding to the protrusions 18. When the lock shell 2 is inserted into the lock body 1, the protrusions 18 engage with the grooves 19 to restrict the circumferential relative rotation between the lock shell 2 and the lock body 1. This structure is a conventional design, but in this embodiment, it is used to ensure the installation stability of the lock shell 2 and the lock body 1.

[0021] One end face of the lock housing 2 is provided with a mounting groove 7. In this embodiment, the mounting groove 7 is a sliding groove with an opening 23 facing the lock cylinder 3. The cross-section of the sliding groove is square, and the cross-section of the conductive element 5 is also square. The outer wall of the conductive element 5 is adapted to the inner wall of the sliding groove. Since the sliding stroke of the conductive element 5 is short, the square structure can ensure that the conductive element 5 slides smoothly in the sliding groove without deflection. The mounting groove 7 is symmetrically provided with slots 12 on both sides of the opening 23, and the two conductive feet 6 are respectively fixed in the two slots 12. The conductive feet 6 are directly fixed to the lock housing 2 through the slots 12, and no additional fasteners are required during installation, making assembly convenient.

[0022] The two conductors 22 can be copper sheets or wires. Two conductive feet 6 are electrically connected to the two conductors 22 respectively. Terminal blocks 14 are also electrically connected to the two conductors 22. Circuit continuity is achieved when the two conductors 22 are connected. The two conductors 22 are mounted on the same support body 4. This support body 4 can be made of insulating material, or copper can be attached to an insulating board and then coated with insulating varnish. A conductive block 13 is provided at the top of the conductive feet 6. The conductive block 13 is inserted into the hole of the conductor 22 and welded in place to achieve electrical connection between the conductive feet 6 and the conductors 22. A contact 11 is provided on the side wall of the conductive feet 6, extending into the mounting groove 7. The support body 4 is located at the end face of the lock housing 2 where the mounting groove 7 is located. Terminal blocks 14 are connected to the support body 4, and external wiring is connected to the two conductors 22 on the support body 4 through the terminal blocks 14.

[0023] The conductive element 5 is slidably disposed within the mounting groove 7 along the radial direction of the lock housing 2. One end of the conductive element 5 passes through the opening 23 of the mounting groove 7 and abuts against the outer wall of the lock cylinder 3, while an elastic element 8 is provided between the other end and the mounting groove 7. In this embodiment, the elastic element 8 is a spring. The end face of the conductive element 5 that abuts against the lock cylinder 3 has a convex curved surface structure to reduce friction with the outer wall of the lock cylinder 3. Conductive shafts 10 are provided on both sides of the conductive element 5. When the conductive element 5 slides closer to the lock cylinder 3, the conductive shaft 10 abuts against the contact 11 on the conductive foot 6, allowing the two conductors 22 on the support body 4 to conduct through the conductive element 5.

[0024] The lock cylinder 3 is rotatably mounted inside the lock housing 2. The outer wall of the lock cylinder 3 has a connecting groove 9. The connecting groove 9 has a preset length along the circumference of the lock cylinder 3, which is greater than the end dimension of the conductive element 5 that abuts against the lock cylinder 3. With this configuration, when the lock cylinder 3 rotates slightly within the length of the connecting groove 9, the end of the conductive element 5 remains within the connecting groove 9, the conductive element 5 maintains contact with the conductive foot 6, and the two conductors 22 remain conductive, thereby improving vibration resistance and preventing accidental power loss due to slight rotation of the lock cylinder 3 caused by elevator or instrument vibration.

[0025] The connecting groove 9 has a guide surface 15 on one side along the rotation direction of the lock cylinder 3. The guide surface 15 is a transition surface between the bottom of the connecting groove 9 and the outer wall of the lock cylinder 3. When the lock cylinder 3 rotates in the opposite direction, the end of the conductive element 5 can smoothly exit the connecting groove 9 along the guide surface 15 and return to the outer circular surface of the lock cylinder 3, avoiding jamming and improving the reliability of operation.

[0026] A digit 20 is attached to the end of the lock body 1 away from the support body 4. A bottom cover 21 is provided at the end of the lock body 1 near the support body 4. The bottom cover 21 covers the support body 4 and the wiring terminal 14, and serves a protective function.

[0027] In use, insert the key and turn the lock cylinder 3. Initially, the end of the conductive element 5 abuts against the outer wall of the lock cylinder 3, the elastic element 8 is compressed, the conductive element 5 is not in contact with the conductive foot 6, and the two conductors 22 are disconnected. When the lock cylinder 3 is rotated until the end of the conductive element 5 enters the connecting groove 9, the conductive element 5 slides towards the lock cylinder 3 under the elastic force of the elastic element 8. The conductive shafts 10 on both sides of the conductive element 5 abut against the contacts 11 on the conductive foot 6, and the two conductors 22 are connected through the conductive element 5. When the lock cylinder 3 is rotated in the opposite direction, the end of the conductive element 5 smoothly exits the connecting groove 9 along the guide surface 15. The conductive element 5 slides away from the lock cylinder 3 under the pressure of the outer wall of the lock cylinder 3, the conductive shafts 10 separate from the contacts 11, and the two conductors 22 are disconnected.

[0028] As an alternative to existing technologies, the mounting groove 7 can also be a rectangular or circular groove structure opened on one end face of the lock housing 2, as long as it can accommodate the conductive element 5 and allow the conductive element 5 to slide radially along the lock housing 2. The end face of the conductive element 5 that abuts against the lock cylinder 3 can also be a spherical surface, an arc surface, or other smooth transition surface. In addition to plug-in welding, the electrical connection between the conductive foot 6 and the support body 4 can also be made by elastic contact, wire connection, etc. In addition to springs, the elastic element 8 can also be a spring sheet, elastic post, or other components with elastic reset function.

Claims

1. An electrically controlled lock, comprising a lock shell (2), a lock cylinder (3), and two independent conductors (22), characterized in that, The lock housing (2) has a mounting groove (7) on one end face. The mounting groove (7) has two conductive feet (6) and the two conductive feet (6) are respectively electrically connected to the two conductors (22). The mounting groove (7) has a conductive element (5) which slides along the radial direction of the lock housing (2). One end of the conductive element (5) passes through the mounting groove (7) and abuts against the outer wall of the lock cylinder (3). The other end is provided with an elastic element (8) between it and the mounting groove (7). The outer wall of the lock cylinder (3) has a connecting groove (9). When the lock cylinder (3) rotates to the point where one end of the conductive element (5) enters the connecting groove (9), the conductive element (5) slides towards the lock cylinder (3) under the action of the elastic element (8). The conductive element (5) contacts the conductive feet (6) and the two conductors (22) are connected.

2. The electronically controlled lock according to claim 1, characterized in that, The conductive element (5) has conductive shafts (10) on both sides, and the conductive foot (6) has a contact (11) that extends into the mounting groove (7). When the conductive element (5) slides toward the lock cylinder (3), the conductive shaft (10) abuts against the contact (11).

3. The electronically controlled lock according to claim 1, characterized in that, The mounting groove (7) is a sliding groove with an opening (23) facing the lock cylinder (3).

4. The electronically controlled lock according to claim 3, characterized in that, The mounting groove (7) has symmetrical slots (12) on both sides of the opening (23), and the two conductive feet (6) are respectively fixed in the two slots (12).

5. The electronically controlled lock according to claim 1, characterized in that, The end face of the conductive element (5) that abuts against the lock core (3) is a convex curved surface structure.

6. The electronically controlled lock according to claim 1, characterized in that, The connecting groove (9) has a preset length along the circumference of the lock cylinder (3), and the preset length is greater than the end dimension of the end of the conductive element (5) that abuts against the lock cylinder (3).

7. The electronically controlled lock according to claim 6, characterized in that, The connecting groove (9) has an inlet surface (15) on one side along the rotation direction of the lock cylinder (3). The inlet surface (15) is a transition surface between the bottom of the connecting groove (9) and the outer wall of the lock cylinder (3).

8. The electronically controlled lock according to claim 1, characterized in that, The top of the conductive foot (6) is provided with a conductive block (13), and the conductive blocks (13) of the two conductive feet (6) are respectively welded and fixed to the two conductors (22).

9. The electronically controlled lock according to claim 1, characterized in that, Two conductors (22) are disposed at one end of the lock housing (2) where the mounting groove (7) is provided, and a terminal block (14) is connected to the two conductors (22).

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