Straight tooth transmission type door lock structure

Abstract

The utility model discloses a straight tooth transmission type door lock structure which comprises an outer lock shell, a straight tooth piece is rotationally installed in the outer lock shell, a main gear is installed at one end of the straight tooth piece, a rotary knob is fixedly installed in the center of the outer surface of the main gear through a connecting shaft, and the rotary knob is arranged outside the outer lock shell. A synchronous shaft is fixedly installed in the center of the end, away from the rotary knob, of the straight tooth piece, a lock cylinder is fixedly installed on the outer surface of one end of the synchronous shaft, a motor is arranged below the straight tooth piece and fixedly installed at the inner bottom end of the outer lock shell through a screw, and a driving gear is fixedly installed on an output shaft of the motor. According to the door lock structure, the internal transmission structure and principle are simpler, the manufacturing difficulty is lower, the door lock structure is suitable for large-scale machining and using, the actual using effect of structure simplification is achieved, direct transmission is conducted between the two gears, no redundant indirect gear transmission structure exists, and therefore the transmission efficiency is higher during unlocking, the unlocking response speed is higher, and the door lock structure is suitable for large-scale machining and using. And the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of internal gear structure in door locks, specifically a spur gear transmission door lock structure. Background Technology

[0002] A door lock, as the name suggests, is a device used to lock a door to prevent others from opening it. There are many types of door locks, and the requirements for door locks vary in different situations. Ordinary households generally use security door locks.

[0003] Smart locks are door lock systems that combine modern technology. They not only retain the traditional keyhole but also introduce various high-tech unlocking methods, such as fingerprint recognition, facial recognition, digital passwords, remote control, and mobile app, greatly improving convenience and security. Through internet connectivity, users can remotely monitor the lock status, receive unlocking notifications, and even set temporary passwords to grant visitors one-time access.

[0004] Smart locks are widely used in the current home industry. However, the internal gear transmission structure of existing smart locks is relatively complex, which makes them difficult to manufacture. Furthermore, when the internal gear transmission structure malfunctions, the complexity of the structure greatly increases the difficulty of maintenance and repair, as well as the repair cost, resulting in certain shortcomings. Therefore, this utility model proposes a simplified spur gear transmission door lock structure. Utility Model Content

[0005] The purpose of this utility model is to provide a spur gear transmission door lock structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spur gear transmission door lock structure, including an outer lock shell, a spur gear component rotatably mounted inside the outer lock shell, a main gear mounted at one end of the spur gear component, a knob fixedly mounted at the center of the outer surface of the main gear via a connecting shaft, the knob being located outside the outer lock shell, a synchronous shaft fixedly mounted at the center of the end of the spur gear component away from the knob, a lock cylinder fixedly mounted on the outer surface of one end of the synchronous shaft, a motor disposed below the spur gear component, the motor being fixedly mounted at the inner bottom end of the outer lock shell by screws, a drive gear fixedly mounted on the output shaft of the motor, the drive gear meshing with the main gear.

[0007] Preferably, the spur gear and the main gear are integrally formed.

[0008] Preferably, a battery is disposed above the spur gear and inside the outer lock housing.

[0009] Preferably, an outer protective baffle is fixedly installed on the outside of the battery, and the outer protective baffle is made of foam.

[0010] Preferably, the battery is provided with a battery cover, which is fixedly connected to the outer housing by screws.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a spur gear transmission door lock structure. Its internal spur gear design allows for manual unlocking via knob or key rotation, making it convenient to use. Simultaneously, the spur gear can be driven by a motor, achieving automated unlocking. The motor and spur gear are directly connected via a drive gear meshing with the main gear, providing a gear-driven unlocking effect. Compared to existing smart door locks, this utility model's door lock structure has a simpler internal transmission structure and principle, is easier to manufacture, and is suitable for mass production. It offers a simplified practical application. The direct transmission between the two gears eliminates unnecessary indirect gear transmission structures, resulting in higher transmission efficiency, faster unlocking response, and greater practicality.

[0013] Furthermore, by simplifying the internal gear structure of the door lock, the internal complexity of the door lock can be effectively reduced, thereby reducing manufacturing difficulty. At the same time, it can effectively reduce the inspection and maintenance costs when the door lock malfunctions, and simultaneously reduce the difficulty of inspection and maintenance, resulting in better economic efficiency. The two gears of this utility model can be directly connected for transmission. By reducing the indirect gear transmission structure, the transmission efficiency can be improved while effectively reducing the overall weight of the door lock, resulting in a lightweight and convenient user experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external three-dimensional structure of the door lock according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the knob structure on the outside of the door lock according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the battery structure inside the door lock according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the internal gear structure of the door lock according to an embodiment of the present utility model.

[0018] In the diagram: 1. Outer lock housing; 2. Spur gear; 3. Main gear; 4. Knob; 5. Synchronous shaft; 6. Motor; 7. Drive gear; 8. Battery; 9. Outer protective baffle; 10. Battery cover; 11. Lock cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides one embodiment: a spur gear transmission door lock structure, including an outer lock shell 1, wherein, for details, please refer to the appendix of the specification. Figure 1 , Figure 2 as well as Figure 4 As shown, a spur gear 2 is rotatably installed inside the outer lock housing 1. A main gear 3 is installed at one end of the spur gear 2. The spur gear 2 and the main gear 3 are integrally formed. In actual use, one side of the spur gear 2 is connected to the linkage pin structure of the lock body. The rotation of the spur gear 2 can drive the linkage pin structure to extend and retract, so that the pin can be inserted into the door frame for locking or retracted for unlocking.

[0023] As should be noted, the linkage pin structure is not shown in the accompanying drawings of the specification. It is a mature existing technology product and is widely used in smart door locks. Any linkage pin structure that is driven by rotation can be applied to this utility model. It is relatively easy to obtain in the existing market and can be obtained without creative effort. Therefore, this specification will not describe the structure of the linkage pin in detail.

[0024] A knob 4 is fixedly installed at the center of the outer surface of the main gear 3 via a connecting shaft. The knob 4 is located outside the outer lock housing 1. According to the above description, this utility model can be manually rotated by the knob 4. The rotation of the knob 4 can drive the spur gear 2 to rotate, and the rotation of the spur gear 2 can drive the connecting rod pin to perform unlocking and locking. It has the effect of manually opening and closing the door indoors.

[0025] This utility model replaces the indoor door lock handle structure with a knob 4 structure. When unlocking, simply turn the knob 4 to rotate it, eliminating the need for a handle-type manual unlocking operation. In actual use, this utility model door lock is suitable for people with hand disabilities to unlock. Unlocking does not require manual gripping; simply turning the knob is sufficient. It is more convenient to use, better caters to the lock-using experience of people with hand disabilities, and is more practical with a wider range of applications.

[0026] Meanwhile, in order to ensure the outdoor key unlocking operation of this utility model, a synchronous shaft 5 is fixedly installed at the center of the end of the spur gear 2 away from the knob 4, and a lock cylinder 11 is fixedly installed on the outer surface of one end of the synchronous shaft 5. Thus, after the key is inserted into the lock cylinder 11, the spur gear 2 can be driven to rotate through the synchronous shaft 5, so that the door lock of this utility model can be unlocked by the key, ensuring the normal key unlocking and entry effect.

[0027] In order to automate the unlocking process, a motor 6 is installed below the spur gear 2. The motor 6 is fixedly installed on the inner bottom of the outer lock housing 1 by screws. A drive gear 7 is fixedly installed on the output shaft of the motor 6, and the drive gear 7 meshes with the main gear 3.

[0028] This structural design allows the motor 6 to drive the drive gear 7 to rotate. When the drive gear 7 rotates, the main gear 3 meshing with it can rotate synchronously. In this way, the rotation of the main gear 3 drives the spur gear 2 to rotate synchronously, thereby completing the unlocking and locking work through the rotation of the spur gear 2, achieving the practical effect of an automated switch.

[0029] In this embodiment, in order to supply power to the motor 6, a battery 8 is provided above the spur gear 2 and inside the outer lock shell 1. In actual use, the battery 8 is electrically connected to the motor 6 through the circuit board, so that the battery 8 can supply power to the motor 6 through the circuit board. At the same time, the circuit board can also intelligently control the motor 6, so that the door lock of this utility model can be easily controlled by the motor 6 to automatically unlock or lock.

[0030] In this embodiment, in order to protect the battery 8 both internally and externally, an outer protective baffle 9 is fixedly installed on the outside of the battery 8. The outer protective baffle 9 is made of foam.

[0031] Furthermore, the battery 8 is provided with a battery cover 10, which is fixedly connected to the outer lock shell 1 by screws.

[0032] Working principle: Users can use the door lock structure of this utility model in a conventional way, that is, install it on the door for normal use;

[0033] In actual use, one side of the spur gear 2 is connected to the linkage pin structure of the lock body. The rotation of the spur gear 2 can drive the linkage pin structure to extend and retract, so that the pin can be inserted into the door frame to lock or retracted to unlock.

[0034] When it is necessary to unlock the door from the inside, rotating the knob 4 will drive the spur gear 2 to rotate, and the rotation of the spur gear 2 will drive the connecting rod pin to unlock and lock, thus providing the effect of manually opening and closing the door from the inside.

[0035] This utility model replaces the indoor door lock handle structure with a knob 4 structure. When unlocking, simply turn the knob 4 to rotate it, eliminating the need for a handle-type manual unlocking operation. In actual use, this utility model door lock is suitable for people with hand disabilities to unlock. Unlocking does not require manual gripping; simply turning the knob is sufficient. It is more convenient to use, better caters to the lock-using experience of people with hand disabilities, and is more practical with a wider range of applications.

[0036] Meanwhile, a lock cylinder 11 is fixedly installed on the outer surface of one end of the synchronous shaft 5 of the spur gear 2. After the key is inserted into the lock cylinder 11, the spur gear 2 can be driven to rotate through the synchronous shaft 5, so that the door lock of this utility model can be unlocked by the key, ensuring the normal key unlocking and entry effect.

[0037] In order to automate the unlocking process, a motor 6 is installed below the spur gear 2. A drive gear 7 is fixedly installed on the output shaft of the motor 6, and the drive gear 7 meshes with the main gear 3.

[0038] This structural design allows the motor 6 to drive the drive gear 7 to rotate. When the drive gear 7 rotates, the main gear 3 meshing with it can rotate synchronously. In this way, the rotation of the main gear 3 drives the spur gear 2 to rotate synchronously, thereby completing the unlocking and locking work through the rotation of the spur gear 2, achieving the practical effect of an automated switch.

[0039] In actual use, motor 6 can be controlled by a circuit board, which can receive external control signals to control motor 6 to perform the automatic unlocking or locking requirements.

[0040] In summary, the spur gear transmission door lock structure of this utility model allows for manual unlocking via knob or key rotation through the internal spur gear 2, making it convenient to use. Simultaneously, the spur gear 2 can be driven by the motor 6, achieving automated unlocking. The motor 6 and the spur gear 6 are directly connected via the driving gear 7 and the main gear 3, providing a gear-driven unlocking effect. Compared to existing smart door locks, the door lock structure of this utility model has a simpler internal transmission structure and principle, is easier to manufacture, and is suitable for mass production. It offers a simplified practical application, with direct transmission between the two gears and no redundant indirect gear transmission structures, resulting in higher transmission efficiency, faster unlocking response, and greater practicality.

[0041] Furthermore, by simplifying the internal gear structure of the door lock, the internal complexity of the door lock can be effectively reduced, thereby reducing manufacturing difficulty. At the same time, it can effectively reduce the inspection and maintenance costs when the door lock malfunctions, and simultaneously reduce the difficulty of inspection and maintenance, resulting in better economic efficiency. The two gears of this utility model can be directly connected for transmission. By reducing the indirect gear transmission structure, the transmission efficiency can be improved while effectively reducing the overall weight of the door lock, resulting in a lightweight and convenient user experience.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spur gear transmission door lock structure, comprising an outer lock shell (1), characterized in that, The outer lock housing (1) is rotatably mounted with a spur gear (2). A main gear (3) is mounted on one end of the spur gear (2). A knob (4) is fixedly mounted on the center position of the outer surface of the main gear (3) via a connecting shaft. The knob (4) is located outside the outer lock housing (1). A synchronous shaft (5) is fixedly mounted on the center position of the end of the spur gear (2) away from the knob (4). A lock cylinder (11) is fixedly mounted on the outer surface of one end of the synchronous shaft (5). A motor (6) is located below the spur gear (2). The motor (6) is fixedly mounted on the inner bottom end of the outer lock housing (1) by screws. A drive gear (7) is fixedly mounted on the output shaft of the motor (6). The drive gear (7) meshes with the main gear (3).

2. The spur gear transmission door lock structure according to claim 1, characterized in that: The spur gear (2) and the main gear (3) are designed as an integral molded structure.

3. The spur gear transmission door lock structure according to claim 1, characterized in that: A battery (8) is disposed above the spur tooth (2) and inside the outer lock housing (1).

4. The spur gear transmission door lock structure according to claim 3, characterized in that: An outer protective baffle (9) is fixedly installed on the outside of the battery (8), and the material of the outer protective baffle (9) is foam cotton.

5. A spur gear transmission door lock structure according to claim 3, characterized in that: The battery (8) is provided with a battery cover (10), which is fixedly connected to the outer lock shell (1) by screws.

Images