Electric bolt
The electric latch design solves the security and ease of operation issues of the double doors, providing dual protection in case the key lock is damaged, thus improving the overall security and ease of use of the double doors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2026-04-10
AI Technical Summary
The existing double doors have large gaps in their door latch structure, resulting in poor security. They also require manual operation, which is inconvenient, and they cannot provide effective protection when the key lock is damaged.
Design an electric latch, comprising a first base, a second base, a bracket, a lead screw motor, a slider, a connecting rod, and a drive controller. The latch is opened and closed by controlling the forward and reverse rotation of the lead screw motor via a remote control, providing dual protection.
It enhances the security of double doors, providing protection even after the key lock is damaged, and is easy to operate, offering remote opening and closing.
Smart Images

Figure CN121827628A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of lock, in particular to an electric bolt. BACKGROUND
[0002] The door bolt is a simple tool for locking the door from the inside, which is simple in structure, reliable in performance and is the most basic lock. However, for the double-leaf designed door, the door bolt in the prior art is basically locked by the L-shaped movable pin matched with the pin hole, a hanging plate is arranged on the L-shaped movable pin, a hook is arranged on the other door, and after the pin is inserted into the lock hole, the hanging plate is buckled into the hook. The structure is simple, but the structure gap is large, the safety is poor, and there is a risk that the L-shaped movable pin is opened from the door gap by someone, so it is necessary to design a door bolt which is safer and more convenient to operate to meet the use requirement.
[0003] Chinese patent CN110469218A discloses a theft-proof fastening door bolt for a double-leaf door, which is capable of effectively reducing the risk that the toothed rod is opened from the door gap by someone and improving the safety by cooperating the gear with the rack to rotate the gear by the rocker to further drive the rack to move to realize the pin door function.
[0004] However, if the above-mentioned device is damaged by someone during actual use, the door will lose the protection function, and the above-mentioned device needs to be manually opened and closed, which is very inconvenient. Therefore, it is necessary to develop an electric bolt which is installed on the existing key door to provide double protection and to solve the problem of manually opening and closing the bolt. SUMMARY
[0005] The purpose of the present application is to provide an electric bolt which can prevent the key lock from being damaged and forcibly opened to lose the protection of the door, and improve the overall safety performance.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: An electric bolt, the bolt comprising a first base, a second base corresponding to the first base; the first base is provided with a bracket and a lead screw motor, the housing of the lead screw motor has a first end for installing a lead screw and a second end opposite to the first end, the first end is rotatably connected with the bracket through a first bolt, the lead screw of the lead screw motor is meshingly connected with a sliding block; the sliding block is fixedly connected with one end of a connecting rod, the opposite end of the connecting rod is connected with a lifting rod, the lifting rod is integrally formed with the connecting rod, the lifting rod has a fixed end rotatably connected with the bracket through a second bolt and a rotating end opposite to the fixed end; the second base is provided with a clamping groove corresponding to the rotating end; the first base is further provided with a drive controller, the drive controller is electrically connected with the lead screw motor.
[0007] Specifically, the drive controller includes a drive power supply, a signal receiver, and a drive module. The drive power supply is a 24V power supply. The drive power supply, signal receiver, and drive module are electrically connected to each other.
[0008] Furthermore, the electric latch is equipped with a remote control that is compatible with the electric latch, and the remote control is equipped with a signal transmitter and a control switch button.
[0009] The beneficial effects of this invention are as follows: This application provides users with dual protection by installing the device on existing key locks, ensuring protection even if the key lock is damaged, thus improving the overall security of the key locks.
[0010] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of an electric latch according to an embodiment of the present invention.
[0012] Explanation of reference numerals in the attached drawings: 1. First base; 2. Second base; 3. Drive controller; 4. Lead screw motor; 5. Slider; 6. Connecting rod; 7. First bolt; 701. Second bolt; 8. Bracket; 9. Lifting rod; 10. Slot; 11. Remote control. Detailed Implementation
[0013] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0014] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0015] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0016] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0017] Please see Figure 1 This invention provides an electric latch, an electric auxiliary latch lock for double doors. The latch includes a first base 1, a second base 2 corresponding to the first base, and a remote control 11 for controlling the electric latch. The first base 1 has a bracket 8 and a lead screw motor 4. The housing of the lead screw motor 4 has a first end for mounting the lead screw and a second end opposite to the first end. The first end is rotatably connected to the bracket 8 via a first bolt 7. A slider 5 is engaged with the lead screw of the lead screw motor 4. The slider 5 is fixedly connected to one end of a connecting rod 6. A lifting rod 9 is connected to the opposite end of the connecting rod 6. The lifting rod 9 is integrally formed with the connecting rod 6. The lifting rod 9 has a fixed end rotatably connected to the bracket 8 via a second bolt 701, and a rotating end opposite to the fixed end. The second base has a slot 10 corresponding to the rotating end. The first base 1 also has a controller 3, which is electrically connected to the lead screw motor 4.
[0018] Specifically, the drive controller 3 is equipped with a drive power supply, a signal receiver, and a drive module. The drive power supply is a 24V power supply. The drive power supply, signal receiver, and drive module are electrically connected to each other. Specifically, the remote control 11 is equipped with a signal transmitter and a control switch button.
[0019] When in use, install this device on a door with a key lock, press the control switch button on the remote control 11, the signal receiver in the drive controller 3 receives the signal sent by the remote control 11, the drive module in the drive controller 3 drives the lead screw motor 4, the lead screw motor 4 rotates up and down under the resistance of the slider and gravity, and at the same time the lead screw of the lead screw motor 4 rotates forward, the forward rotation of the lead screw causes the slider 5 to move on the lead screw, the slider 5 drives the connecting rod 6 to rotate, the connecting rod 6 drives the lifting rod 9 to lift out of the slot 10, at this time the device is in the open state.
[0020] Furthermore, when the control switch button of the remote control 11 is pressed again, the signal receiver in the drive controller 3 receives the signal sent by the remote control 11, and the drive module in the drive controller 3 drives the lead screw motor 4. The lead screw motor 4 rotates up and down under the resistance of the slider and gravity. At the same time, the lead screw of the lead screw motor 4 reverses, which causes the slider 5 to move on the lead screw. The slider 5 drives the connecting rod 6 to rotate, and the connecting rod 6 drives the lifting rod 9 to fall into the slot 10. At this time, the device is in a closed state.
[0021] In summary, this application provides users with dual protection by installing this device on existing key locks. Even if the key lock is damaged, it can still protect the user, improving the overall security of the key lock. It also allows the latch to be opened and closed using a remote control, which is very convenient.
[0022] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0023] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.
Claims
1. An electric latch, characterized in that, The pin includes a first base and a second base corresponding to the first base; the first base is provided with a bracket and a lead screw motor, the housing of the lead screw motor has a first end for mounting the lead screw and a second end opposite to the first end, the first end is rotatably connected to the bracket by a first bolt, and a slider is engaged with the lead screw of the lead screw motor; the slider is fixedly connected to one end of a connecting rod, and a lifting rod is connected to the opposite end of the connecting rod, the lifting rod is integrally formed with the connecting rod, the lifting rod has a fixed end rotatably connected to the bracket by a second bolt, and a rotating end opposite to the fixed end; the second base is provided with a slot corresponding to the rotating end; the first base is also provided with a drive controller, the drive controller being electrically connected to the lead screw motor.
2. The electric latch as described in claim 1, characterized in that, The drive controller includes a drive power supply, a signal receiver, and a drive module. The drive power supply is a 24V power supply. The drive power supply, signal receiver, and drive module are electrically connected to each other.
3. An electric latch as described in claim 1, characterized in that, The electric latch is equipped with a remote control, which includes a signal transmitter and a control switch button.
Citation Information
Patent Citations
Anti-theft fastening door bolt of hinged door
CN110469218A