Self-generating floor spring lock

Abstract

The invention discloses a self-power-generation floor spring lock which is used in a glass door, a rotating shaft is arranged on the glass door, a bolt seat is arranged at the bottom end of the glass door and close to one side of the rotating shaft, the self-power-generation floor spring lock comprises a shell, and a power generation assembly and a control motor are arranged in the shell; the rotating end of the power generation assembly is fixedly connected with a rotating shaft of the glass door. The output end of the control motor is connected with a plug pin assembly, and the plug pin assembly corresponds to the plug pin base. A cam fixedly matched with the rotating shaft is arranged in the shell, one end of the cam is provided with a springback piece matched with the cam in a rolling mode, and the two ends of the springback piece are connected with damping assemblies respectively. Self-power-generation power supply can be achieved, the damping buffering function is achieved, and damage to the door caused by collision can be effectively reduced.

Description

Technical Field

[0001] The present invention belongs to the field of intelligent door lock technology, and specifically relates to a self-generating spring lock. Background Art

[0002] Traditional door locks do not have buffer devices during use, especially when glass doors are opened or closed quickly, they are prone to produce loud impact noises, which not only affects the user experience, but may also cause damage to the glass door. In addition, the power supply of traditional door locks usually relies on external power supplies or batteries, which not only increases maintenance costs, but may also cause the lock to fail due to power failure. Summary of the invention

[0003] The purpose of the present invention is to provide a self-generating spring lock, which can realize self-generating power supply and has a damping and buffering function, and can effectively reduce the damage caused by impact to the door.

[0004] The technical solution of the present invention is as follows: a self-generating floor spring lock is applied to a glass door, a rotating shaft is arranged on the glass door, a latch seat is arranged at the bottom end of the glass door and on one side close to the rotating shaft, the self-generating floor spring lock comprises a shell, a power generation component and a control motor are arranged in the shell; the rotating end of the power generation component is fixedly connected to the rotating shaft of the glass door; the output end of the control motor is connected to the latch assembly, and the latch assembly corresponds to the latch seat; a cam fixedly matched with the rotating shaft is arranged in the shell, one end of the cam is provided with a V-shaped rebound sheet which rolls with the cam, and the two ends of the rebound sheet are respectively connected to damping components.

[0005] In the aforementioned self-generating spring lock, the power generation component includes an upper shell, a lower shell, a stator and a coil rotor arranged on the rotating end; the stator is fixed at the connection between the upper shell and the lower shell; 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 matched with the bottom of the lower shell through a bearing.

[0006] In the aforementioned self-generating spring lock, the latch assembly includes a base, a latch that moves up and down is provided on the base, and a thread that cooperates with the latch is provided inside the base; a spur rack is provided in the middle of the latch, a gear that cooperates with one side of the spur rack is provided on the output shaft of the control motor, a limit piece arranged around the control motor is fixed on the shell, and one end of the limit piece is in contact with the other side of the spur rack; the upper end of the latch cooperates with the latch seat.

[0007] In the aforementioned self-generating spring lock, a first fixing plate and a second fixing plate are arranged in the shell; the rotating shaft is passed 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 arranged in the rotating cavity, and the rebound plate is sleeved on the fixing cylinder and rotates in cooperation with the rotating cavity.

[0008] In the aforementioned self-generating spring lock, a first concave edge is provided in the middle of the rebound sheet, a second concave edge is provided on one side of the first concave edge, and a third concave edge is provided on the other side of the first concave edge, and the curvatures of the second and third concave edges are greater than those 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 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 arranged 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 cooperates with or separates from the first limiting cylinder during the rotation of the cam, and the second limiting notch cooperates with or separates from the second limiting cylinder during the rotation of the cam.

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

[0011] In the aforementioned self-generating spring lock, the power generation component is electrically connected to a lithium battery arranged in the shell, the lithium battery is electrically connected to a charging module, the charging module is provided with a charging interface penetrating the upper end of the shell, 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] The present invention realizes smooth opening and closing of the door through a cam, a rebound sheet and a damping component, effectively reduces the impact sound of the door during the opening and closing process, improves the user experience, and extends the service life of the door. The present invention uses a power generation component to convert the kinetic energy of the door when it is opened and closed into electrical energy to power the lock. No external power supply or regular battery replacement is required, which reduces maintenance costs, improves the reliability of the lock, reduces dependence on external energy, and conforms to the green and low-carbon development trend. The present invention achieves stable locking of the door and increases the safety of the door lock by cooperating with the latch seat at the bottom of the glass door through the latch assembly. In addition, the present invention realizes remote control through a Bluetooth module integrated on the control circuit board, which enhances the intelligence level of the door lock and facilitates user management and control. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 A top view of the present invention;

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

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

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

[0019] Figure 6 It is a schematic diagram of the latch assembly of the present invention;

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

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

[0022] Fig. 9 It is a schematic diagram of the installation of the present invention and the glass door;

[0023] Fig.10 Schematic diagram of the present invention when the shaft rotates Figure 1 ;

[0024] Fig.11 Schematic diagram of the present invention when the shaft rotates Figure 2 ;

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

[0026] The markings in the attached drawings are: 1, control circuit board; 2, control motor; 3, housing; 4, rotating shaft; 5, cam; 6, rebound plate; 7, base; 8, damping assembly; 9, latch seat; 10, power generation assembly; 11, latch assembly; 12, latch; 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 1. first notch; 21. first concave edge; 22. second concave edge; 23. third concave edge; 24. lithium battery; 25. charging module; 26. charging interface; 27. rotating cavity; 28. pressure rod; 29. ​​spring rod; 30. return spring; 31. spiral coil; 32. coil rotor; 33. spur rack; 34. gear; 35. limiter; 36. upper shell; 37. lower shell; 38. stator; 39. first hole group; 40. second hole group. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0028] Embodiment: A self-generating spring lock is used in a glass door, such as Fig. 9 As shown, a rotating shaft 4 is provided on the glass door, and a latch seat 9 is provided at the bottom end of the glass door and on one side close to the rotating shaft 4. Figure 1 The self-generating spring lock comprises a control circuit board 1 and a housing 3. Figure 2 As shown, the housing 3 provides structural support for the entire device, and the rotating shaft 4 serves as a main transmission member and passes through the housing 3. A cam 5 fixedly matched with the rotating shaft 4 is arranged in the housing 3, and the cam 5 is arranged in the middle of the rotating shaft 4.

[0029] The housing 3 is provided with 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 a development board of model ESP32-S3-WROOM-1-N16R8, supports Bluetooth 5.2 protocol stack, and is suitable for low-power Bluetooth applications. The control motor 2 uses a stepper motor of model 28BYJ-48.

[0030] A cover 13 is provided at the upper end of the housing 3, and the rotating shaft 4 is inserted into the cover 13 and rotates with the cover 13 via a bearing. A first fixing plate 14 and a second fixing plate 15 are provided in the housing 3. Figure 3 As shown, the rotating shaft 4 is inserted into the first fixing plate 14 and the second fixing plate 15 . A rotating cavity 27 is formed at the front end of the first fixing plate 14 and the second fixing plate 15 . A fixing cylinder 16 is disposed in the rotating cavity 27 .

[0031] One end of the cam 5 is provided with a rebound sheet 6 which is in rolling cooperation with the cam 5. The structure of the cam 5 and the rebound sheet 6 is as follows: Figure 4 , Figure 5 As shown, the resilient sheet 6 is sleeved on the fixed cylinder 16 and rotates with the rotating cavity 27. A first concave edge 21 is provided in the middle of the resilient sheet 6, a second concave edge 22 is provided on one side of the first concave edge 21, and a third concave edge 23 is provided on the other side of the first concave edge 21. The curvatures of the second concave edge 22 and the third concave edge 23 are greater than 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 respectively along its rotating 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 arranged 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.

[0033] Both ends of the rebound sheet 6 are respectively connected to a damping assembly 8, which includes a pressure rod 28 hinged at both ends of the rebound sheet 6, a spring rod 29 is sleeved on the other end of the pressure rod 28, and the end of the spring rod 29 is hinged to the shell 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 coil 31; the spring rod 29 is provided with an external thread, and the spiral coil 31 cooperates with the external thread 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 shell 36, a lower shell 37 and a stator 38. The outer sides of the upper shell 36 and the lower shell 37 are provided with a plurality of first hole groups 39 that match each other, and the inner sides of the upper shell 36 and the lower shell 37 are provided with a plurality of second hole groups 40 that match each other. The stator 38 is fixed between the upper shell 36 and the lower shell 37 by bolts through the second hole group 40. The lower end of the rotating shaft 4 is fixed with a coil rotor 32 that penetrates the stator 38, and the bottom of the rotating shaft 4 is rotatably matched with the bottom of the housing 3 through a bearing. The coil rotor 32 is fixed to the lower end of the rotating shaft 4, and the stator 38 is fixed between the upper shell 36 and the lower shell 37 by bolts through the second hole group 40. The coil rotor 32 can cut the magnetic field of the stator 38 when rotating.

[0035] like Fig.12 As shown, the power generation component 10 is electrically connected to a lithium battery 24 disposed in the housing 3, and the lithium battery 24 is electrically connected to a charging module 25. The charging module 25 is provided with a charging interface 26 penetrating the upper end of the housing 3, and 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 latch assembly 11, and a latch 12 is provided inside the latch assembly 11, which is controlled by the control motor 2 to extend and retract upward and downward, and the upper end of the latch 12 is matched with the latch hole. The latch assembly 11 includes a base 7, and the base 7 is provided with an internal thread, and the lower end of the latch 12 is provided with an external thread that rotates with the base 7, and a spur rack 33 is provided in the middle of the latch 12. A gear 34 that cooperates with one side of the spur rack 33 is provided on the output shaft of the control motor 2, and the control motor 2 is fixed to one side of the housing 3. A limiter 35 arranged around the control motor 2 is also fixed on the housing 3, and one end of the limiter 35 is in conflict with the other side of the spur rack 33. The base 7 is fixed inside the housing 3, and the latch 12 is rotated with the internal thread of the base 7 through the external thread, and the control motor 2 cooperates with the gear 34 and the spur rack 33 to realize automatic control of the latch 12.

[0037] This device realizes smooth opening and closing of the door through the cam 5, the rebound sheet 6 and the damping component 8, effectively reduces the impact sound of the door during the opening and closing process, improves the user experience, and extends the service life of the door. This device uses the power generation component 10 to convert the kinetic energy of the door when it is opened and closed into electrical energy to power the lock. No external power supply or regular battery replacement is required, which reduces maintenance costs, improves the reliability of the lock, reduces dependence on external energy, and conforms to the green and low-carbon development trend. This device cooperates with the latch seat 9 at the bottom of the glass door through the latch assembly 11 to achieve stable locking of the door and increase the safety of the door lock. In addition, this device realizes remote control through the Bluetooth module integrated on the control circuit board 1, which enhances the intelligence level of the door lock and facilitates user management and control.

[0038] Working process

[0039] When the glass door is in a closed state, the front end of the cam 5 contacts the first concave edge 21, and the damping assemblies 8 on both sides are in a normal state. The mobile phone can send a locking signal to the Bluetooth module of the control circuit board 1, thereby driving the control motor 2 to operate, and the gear 34 and the spur rack 33 cooperate to realize the rise of the latch 12, and then the latch 12 is inserted into the latch hole of the latch seat 9 to achieve ground locking; conversely, the mobile phone sends an unlocking signal to the Bluetooth module of the control circuit board 1, thereby driving the control motor 2 to operate, and the gear 34 and the spur rack 33 cooperate to realize the descent of the latch 12, and then the latch 12 withdraws from the latch hole of the latch seat 9 to achieve unlocking.

[0040] When the glass door is opened to one side, the rotating shaft 4 rotates, driving the coil rotor 32 of the power generation assembly 10 below to rotate. The coil rotor 32 can cut the magnetic field of the stator 38 when rotating, thereby realizing self-generation; Fig.10 and Fig.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 the rotation process, the rebound sheet 6 deflects, thereby compressing the damping assembly 8 on the deflected side and stretching the damping assembly 8 on the other side. When the glass door leaves the limited rotation angle, resistance is generated, which plays a buffering role. Under the action of the damping assemblies 8 on both sides, the automatic rebound of the rotating shaft 4 is achieved, and self-generation is achieved at the same time.

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

Claims

1. A self-generating spring lock, used in a glass door, wherein a rotating shaft (4) is provided on the glass door, and a latch seat (9) is provided at the bottom end of the glass door and on one side close to the rotating shaft (4), characterized in that: The self-generating floor spring lock comprises a housing (3), wherein a power generation component (10) and a control motor (2) are arranged in the housing (3); 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 latch component (11), and the latch component (11) corresponds to a latch seat (9); a cam (5) fixedly matched with the rotating shaft (4) is arranged in the housing (3), and a V-shaped rebound sheet (6) rollingly matched with the cam (5) is arranged at one end of the cam (5), and damping components (8) are respectively connected to the two ends of the rebound sheet (6).

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

3. The self-generating spring lock according to claim 1, characterized in that: The latch assembly (11) comprises a base (7), a latch (12) movable up and down is arranged on the base (7), a thread matched with the latch (12) is arranged in the base (7); a spur rack (33) is arranged in the middle of the latch (12), a gear (34) matched with one side of the spur rack (33) is arranged on the output shaft of the control motor (2), a limiter (35) arranged around the control motor (2) is fixed on the housing (3), one end of the limiter (35) abuts against the other side of the spur rack (33); the upper end of the latch (12) matches with the latch seat (9).

4. The self-generating 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) is inserted into the first fixing plate (14) and the second fixing plate (15); a rotating cavity (27) is formed at the front end of the first fixing plate (14) and the second fixing plate (15); a fixing cylinder (16) is provided in the rotating cavity (27); the resilient plate (6) is sleeved on the fixing cylinder (16) and is rotatably matched with the rotating cavity (27).

5. The self-generating spring lock according to claim 4, characterized in that: A first concave edge (21) is provided in the middle of the resilient sheet (6); a second concave edge (22) is provided on one side of the first concave edge (21); a third concave edge (23) is provided on the other side of the first concave edge (21); the curvatures of the second concave edge (22) and the third concave edge (23) are greater than those of the first concave edge (21); and the rotating end of the cam (5) contacts the first concave edge (21), the second concave edge (22) and the third concave edge (23) respectively along its rotating path.

6. The self-generating spring lock according to claim 5, 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 arranged 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) is engaged with or separated from the first limiting cylinder (17) during the rotation of the cam (5), and the second limiting notch (20) is engaged with or separated from the second limiting cylinder (18) during the rotation of the cam (5).

7. The self-generating spring lock according to claim 5, characterized in that: The damping assembly (8) comprises a pressure rod (28) hinged at both ends of a spring-back 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); the other end of the return spring (30) is connected to a spiral coil (31); the spring rod (29) is provided with an external thread, and the spiral coil (31) cooperates with the external thread on the spring rod (29).

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

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