Intelligent self-locking door closer
By introducing gear components and motors into the intelligent door closer, the problem of the difficulty in synchronizing the operation of existing door closers with mechanical locks is solved, realizing the function of automatic door opening and closing and enhancing the applicability of the door closer.
Patent Information
- Application Number
- CN202520400337.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing intelligent door closers lack a connection device during automatic opening or closing, making it difficult to synchronize with the outside world and unable to be used in conjunction with mechanical locks.
An intelligent self-locking door closer was designed. By setting a gear assembly and a motor inside the housing, the gear assembly transmits torque to the mechanical lock. Combined with a micro switch and a damping block, the motor power synchronously drives the mechanical lock to open and close.
It enables synchronized operation of the intelligent door closer and the mechanical lock, and automatic door opening and closing functions, enhancing the applicability and flexibility of the door closer.
Smart Images
Figure CN223813997U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the lock of industrial cabinet, automation control manufacturing, energy storage, automatic inspection equipment industry door body and industrial cabinet door, in particular to a kind of intelligent self-locking door device. BACKGROUND
[0002] At present, the door body and cabinet door of industrial cabinet and other products on the market are generally mainly opened by key, including twist lock or heaven and earth lever lock etc. Among them, some existing similar products in the market or through separate intelligent door closer realize the opening or closing of door plate, especially the door body of fireproof door and safety door needs such door lock, but there are few intelligent ones with motor and circuit board; Such intelligent door closer needs another set of intelligent door lock to realize locking after the door plate is closed. In this way, a separate intelligent door closer is matched with conventional mechanical lock, and once the intelligent door closer drives the door plate to move, the mechanical lock has no movement power source and cannot realize automatic locking and unlocking. For example, the authorized announcement CN212973940U of Chinese patent document, authorized announcement date 2021.04.16, utility model name "a wisdom formula door closer"; the shell of the door closer is provided with gear set and motor, one end of swing arm is provided with rotating shaft, the rotating shaft is matched with one gear at the end of gear set, the output shaft of motor is matched with one gear at the head of gear set, the other end of swing arm is hinged with connecting rod, one end of energy storage device is connected with shell, the other end is connected with one gear in gear set, when the motor drives the gear to open the door, the energy storage device is compressed and stores energy. But the above-mentioned product and similar product lack connecting device in the process of automatic opening or closing, and it is difficult to operate synchronously with external connecting device and use with mechanical lock. SUMMARY
[0003] To overcome the above shortcomings, the utility model aims to provide an intelligent self-locking door device for automatically opening and closing cabinet door, which solves the technical problems of lacking connecting device in the process of automatic opening or closing of existing similar products, difficulty in synchronous operation with external connecting device, and use with mechanical lock. The technical scheme is as follows.
[0004] The utility model provides an intelligence self -locking door closer, the shell one side of the door closer is equipped with the swing lever assembly that protrudes, swing lever assembly swing lever one end is equipped with connecting piece fixedly, and swing lever this end is fixedly connected with the shaft sleeve in the shell through the disc head screw, the shaft sleeve in the shell is fixedly connected with the center hole of first gear of gear assembly in the shell, and the other gear of gear assembly is connected with the motor shaft of motor in the shell in the drive, and the motor is connected with the circuit board in the shell through the circuit. Its structural design key points are gear assembly in the shell rotates through the motor, and gear assembly passes through the connecting device and transmits the torque of motor to mechanical lock, and the connecting device is synchronous belt, rack, steel wire rope or connecting rod driven by the other gear of gear assembly, and the shell of one side of connecting device is equipped with the opening. So that the connecting device protrudes from the shell and is connected with the corresponding mechanical lock structure, and the swing lever of swing lever assembly is driven by the motor to operate, and the mechanical lock is driven to realize corresponding opening or closing.
[0005] The gear assembly in the shell includes a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a sixth gear, the first gear and the third gear are engaged with both sides of the second gear, the second gear is connected with the motor, the motor drives the second gear to rotate, the third gear is connected with the fourth gear below and rotates synchronously, the fifth gear is connected with the sixth gear below and rotates synchronously, the fourth gear is engaged with the fifth gear, and the sixth gear is the other gear of the gear assembly.
[0006] The first gear of the gear assembly in the shell is provided with a conical switch trigger head on one side, and the third gear is provided with a trapezoidal switch trigger head on one side; when the closing movement of the swing lever assembly ends, the trapezoidal switch trigger head of the third gear triggers the first micro switch in the shell; when the initial state of the swing lever assembly is the opening state, the conical switch trigger head of the first gear triggers the second micro switch in the shell.
[0007] The first gear of the shell internal gear assembly is provided with a gear tooth A at one end of the arc-shaped gear on one side, and the other side of the arc-shaped gear is an idle arc-shaped edge; the second gear is provided with a gear tooth B and a gear tooth C at two ends of the arc-shaped gear on one side, and the other side of the arc-shaped gear is an idle arc-shaped edge; the third gear is provided with a gear tooth D at one end of the circular gear on one side; and the outer diameter of the first gear is provided with a damping block in the shell on one side. When the swing rod assembly is about to rotate to the closed state, the gear tooth A at the upper end of the second gear meshes with the gear tooth B at the upper end of the third gear to drive the third gear to start rotating; when the first gear continues to rotate by a certain angle, the swing rod assembly reaches the closed position, the second gear is disengaged from the first gear, the first gear stops rotating, the damping block meshes with the first gear to prevent the first gear from swinging, and the second gear continues to drive the third gear to rotate through the gear tooth C on the other side; when the motor reversely rotates to drive the swing rod assembly to open, the gear tooth C of the second gear drives the gear tooth D of the third gear to rotate to a certain angle and then disengages, and the gear tooth B at the upper end of the second gear meshes with the gear tooth A at the upper end of the first gear to drive the first gear to reversely rotate and drive the swing rod assembly to rotate and open; the gear teeth are respectively tapered tooth heads inlaid into the outer diameter of the gear and aligned with the tooth gap.
[0008] The shell comprises a top cover, a base and a bottom cover, the bottom cover and the top cover are respectively arranged at the front cavity and the rear cavity of the base, a motor, a circuit board and a fifth gear and a sixth gear integrated assembly are arranged at the rear cavity on one side of the base, a shaft sleeve, a first gear, a second gear, a third gear, a fourth gear, a first micro switch, a damping block and a second micro switch are arranged at the front cavity on the other side of the base, the shaft part connected with the motor of the second gear penetrates through the base, and the pins of the third gear and the fourth gear are inserted into the base.
[0009] The motor shaft is connected with the center hole of the second gear through a speed change gear box on one side and is changed by 90 degrees.
[0010] The door closer is convenient to use, has a wide application range, and is especially convenient to use in cooperation with a mechanical lock in the outside world through a synchronous belt, a rack, a steel wire rope and a connecting device, and synchronous operation can realize automatic opening and closing. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is an explosion structure schematic view of the utility model.
[0012] Figure 2 It is Figure 1 It is an assembly three-dimensional structure schematic view of the utility model.
[0013] Figure 3 yes Figure 2 The diagram shows the initial state of the rocker arm assembly and the internal working principle structure after the rocker arm assembly rotates to a certain angle. The dotted line in the diagram represents the initial state of the rocker arm assembly and the first gear.
[0014] Figure 4 yes Figure 3 The diagram shows the internal working principle of the front part when the device is closed, with the first microswitch not yet triggered.
[0015] Figure 5 yes Figure 4 The cross-sectional structural diagrams of the fourth, fifth, and sixth gears below are shown.
[0016] Figure 6 yes Figure 4 The diagram shows the internal working principle of the reverse rotating part, with the arrows indicating the reverse direction.
[0017] Attached figures and their names: 1. Rocker arm assembly, 2. Pan head screw, 3. Connector, 4. Bushing, 5. First gear, 501. Conical switch trigger head, 6. Second gear, 7. Third gear, 701. Trapezoidal switch trigger head, 8. Fourth gear, 9. Pin, 10. First micro switch, 11. Fifth gear, 12. Sixth gear, 13. Lower cover, 14. Motor, 1401. Gearbox, 15. Circuit board, 16. Base, 17. Damping block, 18. Second micro switch, 19. Upper cover. Implementation
[0018] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-6 As shown, the door closer has a protruding rocker arm assembly 1 on one side of its housing. A connector 3 is fixedly attached to one end of the rocker arm assembly, and this end is also fixedly connected to a bushing 4 inside the housing via a pan head screw 2. The bushing is fixedly connected to the center hole of the first gear 5 of the gear assembly inside the housing. Another gear at the drive end of the gear assembly is connected to the motor shaft of the motor 14 inside the housing. The motor is connected to a circuit board 15 inside the housing via wiring. Furthermore, while the gear assembly inside the housing is driven to rotate by the motor 14, the gear assembly transmits the motor's torque to the mechanical lock via a connecting device. The connecting device can be a synchronous belt, rack, wire rope, or connecting rod driven by another gear at the output end of the gear assembly. An opening is provided on one side of the housing of the connecting device.
[0019] The specific structure is as follows: The gear assembly inside the housing includes a first gear, a second gear 6, a third gear 7, a fourth gear 8, a fifth gear 11, and a sixth gear 12. The first and third gears mesh with both sides of the second gear. The second gear is connected to a motor, and the motor's rotation drives the second gear. The third gear is connected to the fourth gear below and rotates synchronously. The fifth gear is connected to the sixth gear below and rotates synchronously. The fourth gear meshes with the fifth gear. The sixth gear is another gear that passes through one of the output points of the gear assembly. A conical switch trigger head 501 protrudes from one side of the first gear in the gear assembly inside the housing, and a trapezoidal switch trigger head 701 protrudes from one side of the third gear. When the closing movement of the rocker arm assembly ends, the trapezoidal switch trigger head of the third gear triggers the first micro switch 10 inside the housing. When the rocker arm assembly is initially in the open state, the conical switch trigger head of the first gear triggers the second micro switch 18 inside the housing. The first gear in the gear assembly inside the housing has a tooth A on one end of the arc-shaped gear ring on one side, and the other side of the arc-shaped gear of the first gear is a free-spinning arc edge. The second gear has a tooth B and a tooth C on one end of the arc-shaped gear ring on one side, and the other side of the arc-shaped gear of the second gear is a free-spinning arc edge. The third gear has a tooth D on one side of the circular gear ring. The housing inside the outer diameter side of the first gear has a damping block 17. The aforementioned teeth are conical teeth that are embedded and wedged into the outer diameter of the gear and aligned with the tooth opening.
[0020] The aforementioned housing includes an upper cover 19, a base 16, and a lower cover 13. The lower cover and upper cover are respectively located at the openings of the front and rear cavities of the base. The motor, circuit board, and an integrated assembly of the fifth and sixth gears are located in the rear cavity on one side of the base. The bushing, first gear, second gear, third gear, fourth gear, first microswitch, damping block, and second microswitch are located in the front cavity on the other side of the base. The shaft connecting the second gear to the motor passes through the base, and the pins of the third and fourth gears are inserted into the base. The motor shaft is rotated 90 degrees via a one-sided gearbox and then connected to the center hole of the second gear via a drive shaft.
[0021] Based on the above structural characteristics, when the initial state of the rocker arm assembly is the open state, the second gear is connected to the motor, and the motor rotates to drive the second gear; the first gear is connected to one end of the rocker arm assembly through a connector, and the second gear meshes with the first gear, rotating to drive the first gear and thus causing the rocker arm assembly to rotate (e.g., ...). Figure 3 (As shown).
[0022] As the rocker arm assembly is about to rotate to the closed position, the upper tooth A of the second gear meshes with the upper tooth B of the third gear, causing the third gear to begin rotating (as shown). Figure 4When the first gear continues to rotate for a certain angle, the swing lever assembly reaches the closed position, the second gear is disengaged from the first gear, the first gear stops rotating, the damping block is elastic, the damping block engages with the first gear to prevent the first gear from swinging, and the second gear continues to drive the third gear to rotate through the other side of the gear C.
[0023] The third gear is connected with the fourth gear below and rotates synchronously, the fifth gear is connected with the sixth gear below and rotates synchronously, and the fourth gear and the fifth gear are engaged (as shown in Figure 5 The third gear rotates to drive the sixth gear to rotate, and the sixth gear transmits the torque of the motor to the mechanical lock through a connecting device such as a synchronous belt, a rack, a steel wire rope, or a connecting rod, thereby realizing that one motor provides power for multiple mechanisms.
[0024] When the third gear triggers the first micro switch, the closing movement ends.
[0025] If the swing lever assembly needs to be opened, the circuit board needs to provide a signal, the motor rotates in the opposite direction, the second gear drives the third gear to rotate, the third gear drives the sixth gear to rotate, and the sixth gear provides power to unlock the external mechanism.
[0026] When the gear C of the second gear drives the gear D of the third gear to rotate to a certain angle, the gears are disengaged, and at the same time, the gear B at the upper end of the second gear engages with the gear A at the upper end of the first gear to drive the first gear to rotate in the opposite direction (as shown in Figure 6 When the first gear triggers the second micro switch, the opening movement ends.
[0027] In summary, the door closer effectively realizes the power provided to the mechanical lock during the automatic opening and closing process, and realizes the locking and opening of the mechanical lock when the door closer is opened and closed. The door closer has the following characteristics: 1. The door closer provides power to the cooperating mechanical lock while rotating; 2. Three intermittent gears are used to cooperate with each other to realize that one motor controls two independent movement ports at the same time; 3. The damping block provides a certain positioning force for the first gear after the second gear and the first gear are disengaged, preventing the second gear and the first gear from being misaligned due to shaking when the door panel is opened.
Claims
1. An intelligent self-locking door closer, wherein a swing arm assembly (1) is provided on one side of the housing of the door closer, and a connecting piece (3) is fixedly provided at one end of the swing arm assembly, while the swing arm end is fixedly connected to the bushing (4) inside the housing by a pan head screw (2), the bushing inside the housing is fixedly connected to the center hole of the first gear (5) of the gear assembly inside the housing, and the other gear at the drive part of the gear assembly is connected to the motor shaft of the motor (14) inside the housing, and the motor is connected to the circuit board (15) inside the housing through a line; wherein the gear assembly inside the housing is driven to rotate by the motor (14), and the gear assembly transmits the torque of the motor to the mechanical lock through a connecting device, the connecting device being a synchronous belt, rack, wire rope or connecting rod driven by the other gear at the output part of the gear assembly, and the housing on one side of the connecting device is provided with an opening.
2. The intelligent self-locking door closer according to claim 1, characterized in that... The gear assembly inside the housing includes a first gear (5), a second gear (6), a third gear (7), a fourth gear (8), a fifth gear (11), and a sixth gear (12). The first gear and the third gear mesh with both sides of the second gear. The second gear is connected to the motor, and the motor rotates to drive the second gear. The third gear is connected to the fourth gear below and rotates synchronously. The fifth gear is connected to the sixth gear below and rotates synchronously. The fourth gear meshes with the fifth gear. The sixth gear is another gear that passes through one of the output points of the gear assembly.
3. The intelligent self-locking door closer according to claim 2, characterized in that... The first gear (5) of the gear assembly inside the housing has a conical switch trigger head (501) protruding on one side, and the third gear (7) has a trapezoidal switch trigger head (701) protruding on one side. When the closing movement of the rocker arm assembly (1) ends, the trapezoidal switch trigger head of the third gear triggers the first micro switch (10) inside the housing. When the rocker arm assembly is initially in the open state, the conical switch trigger head of the first gear triggers the second micro switch (18) inside the housing.
4. The intelligent self-locking door closer according to claim 2, characterized in that... The first gear (5) of the gear assembly inside the housing has a pawl A on one end of its arc-shaped gear ring, and the other side of the arc-shaped gear of the first gear is a free-spinning arc edge. The second gear (6) has pawl B and pawl C on one end of its arc-shaped gear ring, and the other side of the arc-shaped gear of the second gear is a free-spinning arc edge. The third gear (7) has a pawl D on one side of its circular gear ring. The housing inside the housing has a damping block (17) on one side of the outer diameter of the first gear. When the rocker arm assembly (1) is about to rotate to the closed state, the pawl A on the upper end of the second gear meshes with the pawl B on one side of the upper end of the third gear, causing the third gear to start rotating. When the first gear continues to rotate for a certain period of time... When the rocker arm assembly reaches the closed position, the second gear disengages from the first gear, the first gear stops rotating, the damping block meshes with the first gear to prevent the first gear from swinging, and the second gear continues to drive the third gear to rotate through the other side of the paddle C; when the motor (14) rotates in the opposite direction to drive the rocker arm assembly to open, the paddle C of the second gear drives the paddle D of the third gear to rotate to a certain angle and disengage, at the same time the paddle B at the upper end of the second gear meshes with the paddle A at the upper end of the first gear to drive the first gear to start rotating in the opposite direction, driving the rocker arm assembly to rotate and open; the above paddles are respectively bevel teeth that are embedded and wedge into the outer diameter of the gear and aligned with the tooth opening.
5. The intelligent self-locking door closer according to claim 4, characterized in that... The housing includes an upper cover (19), a base (16), and a lower cover (13). The lower cover and the upper cover are respectively located at the openings of the front cavity and the rear cavity of the base. The motor (14), the circuit board (15), and the fifth gear (11) and the sixth gear (12) are integrated into the rear cavity on one side of the base. The bushing (4), the first gear (5), the second gear (6), the third gear (7), the fourth gear (8), the first micro switch (10), the damping block (17), and the second micro switch (18) are located in the front cavity on the other side of the base. The shaft of the second gear connected to the motor passes through the base, and the pins of the third gear and the fourth gear are inserted into the base.
6. The intelligent self-locking door closer according to claim 1, characterized in that... The motor shaft of the motor (14) is connected to the center hole of the second gear (6) by the drive shaft after changing direction by 90 degrees through the one-side speed change gearbox (1401).