A self-generating ground spring lock

Abstract

This invention discloses a self-generating ground spring lock for use in glass doors. The glass door has a pivot, and a pin seat is located at the bottom of the glass door near the pivot. The self-generating ground spring lock includes a housing, within which a power generation component and a control motor are housed. The rotating end of the power generation component is fixedly connected to the pivot of the glass door. The output end of the control motor is connected to a pin assembly, which corresponds to the pin seat. A cam is provided within the housing, fixedly engaged with the pivot. One end of the cam has a return spring plate that rolls with the cam, and both ends of the return spring plate are connected to damping components. This invention enables self-generation and provides damping buffering, effectively reducing damage to the door from impacts.

Description

Technical Field

[0001] This invention pertains to the field of smart door lock technology, specifically relating to a self-generating spring lock. Background Technology

[0002] Traditional door locks lack a buffer mechanism during use, especially when glass doors are opened or closed rapidly, which can generate loud impact noises, affecting user experience and potentially damaging the glass. Furthermore, traditional door locks typically rely on external power sources or batteries, increasing maintenance costs and potentially causing lock failure due to power outages. Summary of the Invention

[0003] The purpose of this invention is to provide a self-generating spring lock. This invention can generate its own power and has a damping buffer function, which can effectively reduce the damage to the door caused by impact.

[0004] The technical solution of the present invention is as follows: A self-generating ground spring lock is applied to a glass door. The glass door is provided with a pivot, and a pin seat is provided at the bottom of the glass door and near the pivot. The self-generating ground spring lock includes a housing, and a power generation component and a control motor are provided inside the housing. The rotating end of the power generation component is fixedly connected to the pivot of the glass door. The output end of the control motor is connected to a pin assembly, and the pin assembly corresponds to the pin seat. A cam is provided inside the housing to be fixedly engaged with the pivot. One end of the cam is provided with a V-shaped return piece that rolls with the cam. The two ends of the return piece are respectively connected to damping components.

[0005] In the aforementioned self-generating ground spring lock, the power generation component includes an upper housing, a lower housing, a stator, and a coil rotor disposed on the rotating end; the stator is fixed at the connection between the upper housing and the lower housing; the lower end of the rotating shaft is fixed with a coil rotor corresponding to the stator, and the bottom of the rotating shaft is rotatably engaged with the bottom of the lower housing via a bearing.

[0006] In the aforementioned self-generating ground spring lock, the pin assembly includes a base, on which a pin that moves up and down is provided, and inside the base is a thread that mates with the pin; a straight rack is provided in the middle of the pin, and a gear that mates with one side of the straight rack is provided on the output shaft of the control motor; a limiting member is fixed on the housing and arranged around the control motor, and one end of the limiting member abuts against the other side of the straight rack; the upper end of the pin mates with the pin seat.

[0007] In the aforementioned self-generating ground spring lock, a first fixing plate and a second fixing plate are provided in the housing; the rotating shaft passes through the first fixing plate and the second fixing plate; a rotating cavity is formed at the front end of the first fixing plate and the second fixing plate; a fixing cylinder is provided in the rotating cavity, and the spring plate is sleeved on the fixing cylinder and rotates with the rotating cavity.

[0008] In the aforementioned self-generating ground spring lock, the rebound plate has a first concave edge in the middle, a second concave edge on one side of the first concave edge, and a third concave edge on the other side of the first concave edge. The curvature of the second and third concave edges is greater than that of the first concave edge. The rotating end of the cam contacts the first concave edge, the second concave edge, and the third concave edge respectively along its rotation path.

[0009] In the aforementioned self-generating ground spring lock, a first limiting cylinder and a second limiting cylinder are respectively provided between the front ends of the first fixing plate and the second fixing plate; the cam is set in the rotating cavity, and a first limiting notch and a second limiting notch are respectively provided on both sides of the cam; the first limiting notch engages or disengages with the first limiting cylinder during the rotation of the cam, and the second limiting notch engages or disengages with the second limiting cylinder during the rotation of the cam.

[0010] In the aforementioned self-generating ground spring lock, the damping assembly includes a pressure rod hinged to both ends of the return spring plate, a spring rod sleeved on the other end of the pressure rod, and the end of the spring rod hinged to the housing; a return spring sleeved on the spring rod, one end of the return spring being fixedly connected to the pressure rod, and the other end of the return spring being connected to a spiral ring; the spring rod is provided with an external thread, and the spiral ring mates with the external thread on the spring rod.

[0011] In the aforementioned self-generating ground spring lock, the power generation component is electrically connected to a lithium battery disposed inside the housing, the lithium battery is electrically connected to a charging module, the charging module is provided with a charging interface passing through the upper end of the housing, and the charging interface is provided with a waterproof and dustproof cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention achieves smooth door opening and closing through a cam, a return spring, and a damping assembly, effectively reducing impact noise during opening and closing, improving the user experience, and extending the door's lifespan. The invention utilizes a power generation component to convert the kinetic energy of the door opening and closing into electrical energy to power the lock, eliminating the need for an external power source or regular battery replacements, reducing maintenance costs, improving lock reliability, and reducing dependence on external energy sources, aligning with green and low-carbon development trends. The invention achieves stable door locking through a bolt assembly that engages with a bolt seat at the bottom of the glass door, increasing door lock security. Furthermore, the invention enables remote control via a Bluetooth module integrated on the control circuit board, enhancing the lock's intelligence and facilitating user management and control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention;

[0017] Figure 4 This is a schematic diagram of the cam structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the spring sheet structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the pin assembly of the present invention;

[0020] Figure 7 This is a cross-sectional view of the power generation component of the present invention;

[0021] Figure 8 This is a schematic diagram of the internal structure of the power generation component of the present invention;

[0022] Figure 9 This is a schematic diagram illustrating the installation of the invention with a glass door;

[0023] Figure 10 This is a schematic diagram of the rotating shaft of the present invention. Figure 1 ;

[0024] Figure 11 This is a schematic diagram of the rotating shaft of the present invention. Figure 2 ;

[0025] Figure 12 This is a schematic diagram of the installation of the control circuit board and charging module of the present invention.

[0026] The labels in the attached diagram are as follows: 1. Control circuit board; 2. Control motor; 3. Housing; 4. Rotating shaft; 5. Cam; 6. Spring plate; 7. Base; 8. Damping assembly; 9. Pin holder; 10. Generator assembly; 11. Pin assembly; 12. Pin; 13. Cover; 14. First fixing plate; 15. Second fixing plate; 16. Fixing cylinder; 17. First limiting cylinder; 18. Second limiting cylinder; 19. First limiting notch; 20. Second limiting notch. 21. Notch; 22. First concave edge; 23. Second concave edge; 24. Third concave edge; 25. Lithium battery; 26. Charging module; 27. Charging interface; 28. Rotating cavity; 29. ​​Pressure rod; 30. Spring rod; 31. Return spring; 32. Spiral ring; 33. Coil rotor; 34. Straight rack; 35. Gear; 36. Limiting component; 37. Upper housing; 38. Lower housing; 39. Stator; 40. First hole group; 41. Second hole group. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0028] Example: A self-generating ground spring lock, applied in a glass door, such as... Figure 9 As shown, a pivot 4 is installed on the glass door, and a latch seat 9 is installed at the bottom of the glass door and on the side near the pivot 4. Figure 1 As shown. The self-generating ground spring lock includes a control circuit board 1 and a housing 3, as... Figure 2 As shown, the housing 3 provides structural support for the entire device, and the rotating shaft 4, as the main transmission component, passes through the housing 3. A cam 5 is provided inside the housing 3 and is fixedly engaged with the rotating shaft 4. The cam 5 is located in the middle of the rotating shaft 4.

[0029] The housing 3 houses a power generation component 10 and a control motor 2. The control circuit board 1 is electrically connected to the control motor 2. The control circuit board 1 uses an ESP32-S3-WROOM-1-N16R8 development board, supporting the Bluetooth 5.2 protocol stack and suitable for Bluetooth Low Energy applications. The control motor 2 uses a 28BYJ-48 stepper motor.

[0030] The upper end of the housing 3 is provided with a cover 13, and the rotating shaft 4 passes through the cover 13 and is rotatably engaged with the cover 13 via a bearing. The housing 3 is provided with a first fixing plate 14 and a second fixing plate 15, such as... Figure 3 As shown, the rotating shaft 4 passes through the first fixed plate 14 and the second fixed plate 15. The front ends of the first fixed plate 14 and the second fixed plate 15 form a rotating cavity 27, and a fixed cylinder 16 is provided in the rotating cavity 27.

[0031] One end of the cam 5 is provided with a spring plate 6 that rolls with the cam 5. The structure of the cam 5 and the spring plate 6 is as follows: Figure 4 , Figure 5 As shown, the spring plate 6 is sleeved on the fixed cylinder 16 and rotates in conjunction with the rotating cavity 27. The spring plate 6 has a first concave edge 21 in the middle, a second concave edge 22 on one side of the first concave edge 21, and a third concave edge 23 on the other side of the first concave edge 21. The curvature of the second concave edge 22 and the third concave edge 23 is greater than that of the first concave edge 21. The rotating end of the cam 5 contacts the first concave edge 21, the second concave edge 22, and the third concave edge 23 along its rotation path.

[0032] A first limiting cylinder 17 and a second limiting cylinder 18 are respectively provided between the front ends of the first fixing plate 14 and the second fixing plate 15; the cam 5 is provided in the rotating cavity 27, and a first limiting notch 19 and a second limiting notch 20 are respectively provided on both sides of the cam 5; the first limiting notch 19 engages or disengages with the first limiting cylinder 17 during the rotation of the cam 5, and the second limiting notch 20 engages or disengages with the second limiting cylinder 18 during the rotation of the cam 5.

[0033] Both ends of the spring sheet 6 are connected to damping components 8. The damping components 8 include pressure rods 28 hinged to both ends of the spring sheet 6. A spring rod 29 is sleeved on the other end of the pressure rod 28. The end of the spring rod 29 is hinged to the housing 3. A return spring 30 is sleeved on the spring rod 29. One end of the return spring 30 is fixedly connected to the pressure rod 28, and the other end of the return spring 30 is connected to a spiral ring 31. The spring rod 29 is provided with external threads, and the spiral ring 31 is engaged with the external threads on the spring rod 29.

[0034] like Figure 7 and Figure 8 As shown, the rotating end of the power generation component 10 is connected to the bottom of the rotating shaft 4, and the power generation component 10 is electrically connected to the control circuit board 1. The power generation component 10 includes an upper housing 36, a lower housing 37, and a stator 38. The outer sides of both the upper housing 36 and the lower housing 37 are provided with several sets of first holes 39, and the inner sides of both the upper housing 36 and the lower housing 37 are provided with several sets of second holes 40. The stator 38 is bolted between the upper housing 36 and the lower housing 37 through the second sets of holes 40. A coil rotor 32, which passes through the stator 38, is fixed to the lower end of the rotating shaft 4. The bottom of the rotating shaft 4 is rotatably engaged with the bottom of the housing 3 via a bearing. The coil rotor 32 is fixed to the lower end of the rotating shaft 4, and the stator 38 is bolted between the upper housing 36 and the lower housing 37 through the second sets of holes 40. When rotating, the coil rotor 32 can cut the magnetic field of the stator 38.

[0035] like Figure 12 As shown, the power generation component 10 is electrically connected to a lithium battery 24 disposed inside the housing 3. The lithium battery 24 is electrically connected to a charging module 25. The charging module 25 is provided with a charging interface 26 passing through the upper end of the housing 3. The charging interface 26 is provided with a waterproof and dustproof cover.

[0036] like Figure 6 As shown, the control motor 2 is connected to a pin assembly 11. The pin assembly 11 contains a pin 12 that is controlled to extend and retract vertically by the control motor 2. The upper end of the pin 12 engages with a pin hole. The pin assembly 11 includes a base 7 with an internal thread. The lower end of the pin 12 has an external thread that rotatably engages with the base 7. A rack 33 is located in the middle of the pin 12. The output shaft of the control motor 2 has a gear 34 that engages with one side of the rack 33. The control motor 2 is fixed to one side of the housing 3. A limiting member 35 is also fixed to the housing 3, surrounding the control motor 2. One end of the limiting member 35 abuts against the other side of the rack 33. The base 7 is fixed inside the housing 3. The pin 12 rotatably engages with the internal thread of the base 7 through its external thread. The control motor 2, gear 34, and rack 33 work together to achieve automatic control of the pin 12.

[0037] This device achieves smooth opening and closing of the door through a cam 5, a return spring 6, and a damping assembly 8, effectively reducing impact noise during opening and closing, improving the user experience, and extending the door's lifespan. The device uses a power generation assembly 10 to convert the kinetic energy of the door opening and closing into electrical energy to power the lock, eliminating the need for an external power source or regular battery replacements, reducing maintenance costs, improving lock reliability, and reducing dependence on external energy sources, aligning with green and low-carbon development trends. The device uses a bolt assembly 11 to engage with a bolt seat 9 at the bottom of the glass door to achieve stable locking, increasing door lock security. Furthermore, the device enables remote control via a Bluetooth module integrated on the control circuit board 1, enhancing the door lock's intelligence and facilitating user management and control.

[0038] Work process

[0039] When the glass door is closed, the front end of the cam 5 contacts the first concave edge 21, and both damping components 8 are in normal condition. The mobile phone can send a lock signal to the Bluetooth module of the control circuit board 1, thereby driving the control motor 2 to operate. Through the cooperation of the gear 34 and the rack 33, the pin 12 is raised, and then the pin 12 is inserted into the pin hole of the pin holder 9, thus realizing the floor lock. Conversely, the mobile phone sends an unlock signal to the Bluetooth module of the control circuit board 1, thereby driving the control motor 2 to operate. Through the cooperation of the gear 34 and the rack 33, the pin 12 is lowered, and then the pin 12 is disengaged from the pin hole of the pin holder 9, thus realizing the unlock.

[0040] When the glass door opens to one side, the rotating shaft 4 rotates, driving the coil rotor 32 of the power generation component 10 below to rotate. The coil rotor 32, during its rotation, cuts the magnetic field of the stator 38, thus generating electricity. Figure 10 and Figure 11 As shown, when the glass door rotates to one side, the front end of the cam 5 contacts the second concave edge 22 or the third concave edge 23. When the maximum rotation angle is reached, the first limiting notch 19 or the second limiting notch 20 cooperates with the first limiting cylinder 17 or the second limiting cylinder 18 to limit the glass door. During rotation, the spring plate 6 deflects, which compresses the damping component 8 on the deflected side and stretches the damping component 8 on the other side. When the glass door leaves the limiting rotation angle, resistance is generated, which plays a buffering role. Under the action of the damping components 8 on both sides, the rotating shaft 4 automatically rebounds, and self-generated electricity is achieved.

[0041] In summary, the present invention can achieve self-generated power supply and has a damping buffer function, which can effectively reduce the damage to the door caused by impact.

Claims

1. A self-generating ground spring lock applied to a glass door, wherein a rotating shaft (4) is arranged on the glass door, a bolt seat (9) is arranged at the bottom end of the glass door and close to the rotating shaft (4), characterized in that: The self-generating ground spring lock includes a housing (3), inside which a power generation component (10) and a control motor (2) are installed; the rotating end of the power generation component (10) is fixedly connected to the rotating shaft (4) of the glass door; the output end of the control motor (2) is connected to a pin assembly (11), which corresponds to a pin seat (9); a cam (5) is provided inside the housing (3) and is fixedly engaged with the rotating shaft (4), and one end of the cam (5) is provided with a V-shaped spring plate (6) that rolls with the cam (5). The two ends of the spring sheet (6) are respectively connected to damping components (8); the spring sheet (6) has a first concave edge (21) in the middle, a second concave edge (22) on one side of the first concave edge (21), and a third concave edge (23) on the other side of the first concave edge (21). The curvature of the second concave edge (22) and the third concave edge (23) is greater than that of the first concave edge (21); the rotating end of the cam (5) contacts the first concave edge (21), the second concave edge (22) and the third concave edge (23) along its rotation path.

2. The self-generating ground spring lock according to claim 1, characterized in that: The power generation assembly (10) includes an upper housing (36), a lower housing (37), a stator (38), and a coil rotor (32) disposed on the rotating end; the stator (38) is fixed at the connection between the upper housing (36) and the lower housing (37); the lower end of the rotating shaft (4) is fixed with a coil rotor (32) corresponding to the stator (38), and the bottom of the rotating shaft (4) is rotatably engaged with the bottom of the lower housing (37) via a bearing.

3. The self-generating ground spring lock according to claim 1, characterized in that: The pin assembly (11) includes a base (7), on which a pin (12) that moves up and down is provided, and in which the pin (12) is threaded. A rack (33) is provided in the middle of the pin (12), and a gear (34) that engages with one side of the rack (33) is provided on the output shaft of the control motor (2). A limiting member (35) is fixed on the housing (3) surrounding the control motor (2), and one end of the limiting member (35) abuts against the other side of the rack (33). The upper end of the pin (12) engages with the pin seat (9).

4. The self-generating ground spring lock according to claim 3, characterized in that: The housing (3) is provided with a first fixing plate (14) and a second fixing plate (15); the rotating shaft (4) passes through the first fixing plate (14) and the second fixing plate (15); the front ends of the first fixing plate (14) and the second fixing plate (15) form a rotating cavity (27); a fixing cylinder (16) is provided in the rotating cavity (27), and the spring plate (6) is sleeved on the fixing cylinder (16) and rotates in cooperation with the rotating cavity (27).

5. The self-generating ground spring lock according to claim 4, characterized in that: A first limiting cylinder (17) and a second limiting cylinder (18) are respectively provided between the front ends of the first fixing plate (14) and the second fixing plate (15); the cam (5) is set in the rotating cavity (27), and a first limiting notch (19) and a second limiting notch (20) are respectively provided on both sides of the cam (5); the first limiting notch (19) cooperates with or separates from the first limiting cylinder (17) during the rotation of the cam (5), and the second limiting notch (20) cooperates with or separates from the second limiting cylinder (18) during the rotation of the cam (5).

6. The self-generating ground spring lock according to claim 1, characterized in that: The damping assembly (8) includes a pressure rod (28) hinged to both ends of the spring plate (6), and a spring rod (29) sleeved on the other end of the pressure rod (28). The end of the spring rod (29) is hinged to the housing (3). A return spring (30) is sleeved on the spring rod (29). One end of the return spring (30) is fixedly connected to the pressure rod (28), and the other end of the return spring (30) is connected to a spiral ring (31). The spring rod (29) is provided with an external thread, and the spiral ring (31) engages with the external thread on the spring rod (29).

7. The self-generating ground spring lock according to claim 2, characterized in that: The power generation component (10) is electrically connected to a lithium battery (24) disposed inside the housing (3). The lithium battery (24) is electrically connected to a charging module (25). The charging module (25) is provided with a charging interface (26) passing through the upper end of the housing (3). The charging interface (26) is provided with a waterproof and dustproof cover.

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