A casement window lock compatible with both manual and electric switches

Abstract

This utility model discloses a casement window lock compatible with both manual and electric switches, including a lock body fixed to the edge of the window sash and a latch box fixed to the window frame corresponding to the position of the lock body. The lock body is provided with a latch that can be horizontally extended / retracted towards the window frame. The latch box is provided with a latch groove for inserting the latch when extended to prevent the window sash from rotating open. The lock body is provided with a drive assembly for electrically driving the latch to extend / retract. The drive assembly includes a clutch lever exposed on the surface of the lock body for controlling whether the drive assembly is connected to the latch for transmission. The lock body is also provided with a push-button switch for controlling the action of the drive assembly. The latch is provided with a manual lever exposed on the surface of the lock body for manually extending / retracting the latch. A sensing component is also provided between the latch and the latch groove for sensing whether the latch is inserted into the latch groove.

Description

Technical Field

[0001] This utility model relates to a casement window lock, and more particularly to a casement window lock compatible with both manual and electric switches. Background Technology

[0002] Casement window locks are a type of lock installed at the edge where the window sash meets the window frame. They are typically operated by rotating a handle or using a wrench to actuate the latch, causing it to engage with a latch box on the window frame, thus securely locking the window sash in the closed position.

[0003] Currently, common casement window locks come in two types: manual and electric. Manual locks rely primarily on manual operation, which is inconvenient. While electric locks offer ease of operation, they are entirely dependent on electricity. If there is a power outage or a drive malfunction, the window will be unable to lock or unlock, posing a safety hazard. Some solutions on the market combine manual and electric operation, but these suffer from complex and unreliable mode-switching mechanisms, and conflicts can easily arise between manual and electric operation. Furthermore, common window locks lack effective sensing of whether the bolt is inserted into the bolt slot; they often only sense whether the bolt is extended, failing to meet users' needs for precise feedback on the window's locking / unlocking status.

[0004] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content

[0005] This invention overcomes the shortcomings of the above-mentioned technologies and provides a casement window lock that is compatible with both manual and electric switches.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A casement window lock compatible with both manual and electric switches includes a lock body 1 fixed to the edge of the window sash and a latch box 2 fixed to the window frame corresponding to the position of the lock body 1. The lock body 1 is provided with a latch 3 that can be horizontally extended / retracted towards the window frame. The latch box 2 is provided with a latch groove 21 for the latch 3 to be inserted into when extended to prevent the window sash from rotating open. The lock body 1 is provided with a drive assembly 4 for electrically driving the latch 3 to extend / retract. The drive assembly 4 includes a clutch lever 41 exposed on the surface of the lock body 1 for controlling whether the drive assembly 4 is connected to the latch 3. The lock body 1 is also provided with a push-button switch 5 for controlling the operation of the drive assembly 4. The latch 3 is provided with a manual lever 31 exposed on the surface of the lock body 1 for manually extending / retracting the latch 3. A sensing component 6 is also provided between the latch 3 and the latch groove 21 for sensing whether the latch 3 is inserted into the latch groove 21.

[0007] Preferably, the drive assembly 4 includes a motor base 42, which is fixedly installed in the lower part of the lock body 1 and can move up, down, left, and right. A support spring 43 is connected between the bottom of the motor base 42 and the bottom of the lock body 1. A drive motor 44 is fixed on the motor base 42. A rack 45 that can move left and right is also fixedly fixed on the motor base 42. The rack 45 is driven by the output shaft of the drive motor 44 and moves left and right. One end of the rack 45 is provided with an upwardly extending transmission pin 46. The part of the latch 3 located inside the lock body 1 is provided with a downward-facing pin groove 47. The pin groove 47 is used for the transmission pin 46 to be inserted into so that the rack 45 can drive the latch 3 to move left and right. The clutch lever 41 is fixed on the motor base 42 so that the motor base 42 can be pulled down to disengage the transmission pin 46 from the pin groove 47.

[0008] Preferably, the latch 3 has a hollow structure, and the sensing component 6 includes a Hall sensor 61 disposed inside the latch 3 near one end of the latch groove 21. The latch groove 21 is provided with a magnet 62 corresponding to the position of the latch 3. The magnet 62 is used to trigger the Hall sensor 61 after the latch 3 is inserted into the latch groove 21.

[0009] Preferably, the lock body 1 is provided with a limiting groove 11 extending to the left and right behind the lock tongue 3, and a limiting baffle 32 extending backward into the limiting groove 11 is provided on the rear side of the lock tongue 3. Both the left and right ends of the limiting groove 11 are provided with buffer springs 12 for abutting the limiting baffle 32 when it moves to the left and right extreme positions.

[0010] Preferably, the front of the lock body 1 is provided with a first hollow groove 13 for the clutch lever 41 to extend outward from the inside of the lock body 1. The first hollow groove 13 includes a clutch section 131 extending vertically and a fixed section 132 extending horizontally below the clutch section. The front of the lock body 1 is also provided with a second hollow groove 14 for the manual lever 31 to extend outward from the inside of the lock body 1. The second hollow groove 14 extends horizontally.

[0011] The lock body 1 is also provided with a control circuit board 15. The control circuit board 15 is used to control the drive component 4 to operate according to the trigger signal of the button switch 5. The control circuit board 15 can also control the drive component 4 to operate according to the received wireless control signal. The lock body 1 is provided with a battery 16 for powering the control circuit board 15 and the drive component 4.

[0012] Preferably, the lock body 1 is also provided with a charging port 17 for connecting an external power source to provide temporary emergency power to the lock body 1.

[0013] Preferably, the lock body 1 is also provided with a buzzer 18 and an LED light 19. The buzzer 18 is used to sound an alarm when the bolt 3 is out but the sensing component 6 does not sense that the bolt 3 is inserted into the bolt groove 21. The LED light 19 is used to flash an alarm when the bolt 3 is out but the sensing component 6 does not sense that the bolt 3 is inserted into the bolt groove 21.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The lock in this case features a clutch lever on the drive assembly and a manual lever on the bolt. This allows the transmission connection between the bolt and the clutch lever to be disconnected when needed, and the bolt to be extended / retracted directly via the manual lever. When electric operation of the bolt is required again, the transmission connection between the bolt and the drive assembly can be re-established simply by operating the clutch lever again. Thus, the combination of the clutch lever and the manual lever enables the lock to be compatible with both manual and electric operation, and allows for easy switching between the two modes, completely solving the problem of complex and conflict-prone switching structures in traditional casement window locks.

[0015] 2. The lock in this case also has a sensing component between the bolt and the bolt groove for directly detecting whether the bolt is inserted into the bolt groove. The sensing component can provide accurate feedback on the window's locking status, overcoming the problem of inaccurate sensing in existing technologies, and can significantly improve security and user experience. Attached Figure Description

[0016] Figure 1 This is one of the schematic diagrams of the locks used in this case.

[0017] Figure 2 This is the second schematic diagram of the lock in this case.

[0018] Figure 3 This is a schematic diagram of the internal structure of the main body of the lock in this case.

[0019] Figure 4 This is a cross-sectional schematic diagram of the lock.

[0020] Figure 5 This is an exploded view of the driving components in this case.

[0021] Figure 6 This is a cross-sectional schematic diagram of the latch box in this case, which also includes the latch. Detailed Implementation

[0022] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art: like Figures 1 to 6As shown, a casement window lock compatible with both manual and electric switches includes a lock body 1 fixed to the edge of the window sash and a latch box 2 fixed to the window frame corresponding to the position of the lock body 1. The lock body 1 is provided with a latch 3 that can be horizontally extended / retracted towards the window frame. The latch box 2 is provided with a latch groove 21 for the latch 3 to be inserted into when extended to prevent the window sash from rotating open. The lock body 1 is provided with a drive assembly 4 for electrically driving the latch 3 to extend / retract. The drive assembly 4 includes a clutch lever 41 exposed on the surface of the lock body 1 for controlling whether the drive assembly 4 is connected to the latch 3 for transmission. The lock body 1 is also provided with a push-button switch 5 for controlling the action of the drive assembly 4. The latch 3 is provided with a manual lever 31 exposed on the surface of the lock body 1 for manually extending / retracting the latch 3. A sensing component 6 is also provided between the latch 3 and the latch groove 21 for sensing whether the latch 3 is inserted into the latch groove 21.

[0023] The lock in this case includes a lock body 1 fixed to the edge of the window sash and a latch box 2 fixed to the corresponding position on the window frame. The lock body 1 is provided with a latch 3 that can be extended and retracted, while the latch box 2 is provided with a latch groove 21 into which the latch 3 can be inserted when extended. Thus, when the window sash is closed, extending the latch 3 and inserting it into the latch groove 21 can prevent the window sash from opening and lock the window sash. At the same time, the lock in this case also includes a drive component 4 in the lock body 1 for electrically driving the latch 3 to extend / retract. The drive component 4 can be controlled to extend / retract the latch 3 by a push-button switch 5. Furthermore, the drive assembly 4 is equipped with a clutch lever 41, and the latch 3 is equipped with a manual lever 31. Thus, in the event of a power outage or a malfunction of the drive assembly 4, the clutch lever 41 can be manually operated to disengage the transmission connection between the drive assembly 4 and the latch 3, and the latch 3 can then be pushed out / retracted via the manual lever 31. When power is restored or the fault is cleared, the transmission connection between the latch 3 and the drive assembly 4 can be re-established by operating the clutch lever 41, allowing the latch 3 to continue opening and closing under the drive of the drive assembly 4. In addition, the lock in this case also includes a sensing component 6 between the latch 3 and the latch groove 21. This sensing component 6 is used to directly detect whether the latch 3 is inserted into the latch groove 21, rather than indirectly determining whether the latch 3 is inserted by detecting whether the latch 3 is extended.

[0024] As described above, the lock in this case is equipped with a clutch lever 41 on the drive assembly 4 and a manual lever 31 on the bolt 3. This allows the transmission connection between the bolt 3 and the clutch lever 41 to be disconnected when needed, and the bolt 3 to be directly operated to extend / retract via the manual lever 31. When the bolt 3 needs to be electrically driven again, the transmission connection between the bolt 3 and the drive assembly 4 can be re-established by operating the clutch lever 41 again. Thus, the clutch lever 41 and the manual lever 31 work together to enable the lock to be compatible with both manual and electric operation, and to easily switch between the two modes, completely solving the problem of complex and conflict-prone switching structures in traditional casement window locks. Furthermore, the lock in this case also includes a sensing component 6 between the bolt 3 and the bolt groove 21 for directly detecting whether the bolt 3 is inserted into the bolt groove 21. This sensing component 6 provides accurate feedback on the window's locking status, overcoming the inaccurate sensing problems of existing technologies and significantly improving security and user experience.

[0025] like Figure 3 and Figure 5 As shown, preferably, the drive assembly 4 includes a motor base 42, which is limited and installed in the lower part of the lock body 1 and can move up, down, left, and right. A support spring 43 is connected between the bottom of the motor base 42 and the bottom of the lock body 1. A drive motor 44 is fixed on the motor base 42. A rack 45 that can move left and right is also limited and fixed on the motor base 42. The rack 45 is driven by the output shaft of the drive motor 44 and moves left and right. One end of the rack 45 is provided with an upwardly extending transmission pin 46. The part of the latch 3 located inside the lock body 1 is provided with a downward-facing pin groove 47. The pin groove 47 is used for the transmission pin 46 to be inserted into so that the rack 45 can drive the latch 3 to move left and right. The clutch lever 41 is fixed on the motor base 42 so that the motor base 42 can be pulled down to disengage the transmission pin 46 from the pin groove 47.

[0026] The drive assembly 4 in this case includes a motor mount 42 that is fixedly installed inside the lock body 1. A drive motor 44 and a rack 45 driven by the drive motor 44 and capable of moving left and right are fixed on the motor mount 42. One end of the rack 45 has an upwardly extending transmission pin 46, and the latch 3 has a pin groove 47 into which the transmission pin 46 can be inserted. Thus, when the transmission pin 46 is inserted into the pin groove 47, the drive motor 44 actuates, indirectly driving the latch 3 to move left and right via the rack 45, thereby achieving the electric opening and closing of the latch 3. Furthermore, a support spring 43 connects the bottom of the motor mount 42 to the inner bottom of the lock body 1. This support spring 43 ensures that the motor mount 42 always has an upward tendency, thereby ensuring that the transmission pin 46 remains engaged with the pin groove 47. Meanwhile, the clutch lever 41 is fixed on the motor mount 42. When the locking tongue 3 needs to be operated manually, simply pull down the clutch lever 41 to allow the motor mount 42 to move downward against the elastic force of the support spring 43, thereby disengaging the transmission pin 46 from the pin groove 47 and disconnecting the transmission connection between the drive assembly 4 and the locking tongue 3. When it is necessary to re-drive the locking tongue 3 through the drive assembly 4, release the clutch lever 41 to allow the motor mount 42 to move upward and reset under the drive of the support spring 43, allowing the transmission pin 46 to re-insert into the pin groove 47.

[0027] As described above, the motor mount 42 of the drive assembly 4 in this case is movable and suspended by a support spring 43, allowing the user to easily move the drive motor 44 and rack 45 downwards using the clutch lever 41, separating the transmission pin 46 from the pin groove 47 to avoid interference from the drive assembly 4 when manually opening and closing the lock tongue 3. At the same time, the support spring 43 can also quickly reset the motor mount 42 when manual opening and closing of the lock tongue 3 is not required.

[0028] like Figure 2 , Figure 4 and Figure 6 As shown, preferably, the latch 3 has a hollow structure, and the sensing component 6 includes a Hall sensor 61 disposed inside the latch 3 near one end of the latch groove 21. The latch groove 21 is provided with a magnet 62 corresponding to the position of the latch 3. The magnet 62 is used to trigger the Hall sensor 61 after the latch 3 is inserted into the latch groove 21.

[0029] As described above, the sensing component 6 in this case places the Hall sensor 61 inside the hollow latch 3 near the latch groove 21, and a magnet 62 is provided inside the latch groove 21. Thus, the Hall sensor 61 inside the latch 3 will only be triggered by the magnet 62 when the latch 3 is fully inserted into the latch groove 21. Therefore, the sensing component 6 in this case can directly sense the actual engagement state between the latch 3 and the latch groove 21, and can effectively eliminate the misjudgment situation where the latch 3 is only extended but not inserted into the latch groove 21.

[0030] like Figure 3 and Figure 4As shown, preferably, the lock body 1 is provided with a limiting groove 11 extending to the left and right behind the lock tongue 3, and a limiting baffle 32 extending backward into the limiting groove 11 is provided on the rear side of the lock tongue 3. Both the left and right ends of the limiting groove 11 are provided with buffer springs 12 for abutting against the limiting baffle 32 when the limiting baffle 32 moves to the left and right extreme positions.

[0031] As described above, a rearwardly extending limiting baffle 32 is provided on the rear side of the bolt 3, and a limiting groove 11 is also provided in the lock body 1 for the limiting baffle 32 to be inserted. In this way, the limiting groove 11 and the limiting baffle 32 can effectively limit the extreme positions of the left and right movement of the bolt 3, and prevent the bolt 3 from being damaged due to overtravel. Moreover, buffer springs 12 are provided at both ends of the limiting groove 11. The buffer springs 12 can absorb the impact force when the bolt 3 moves to the extreme position to reduce noise, and at the same time provide a smooth end point feel.

[0032] like Figure 1 and Figure 2 As shown, preferably, the front of the lock body 1 is provided with a first hollow groove 13 for the clutch lever 41 to extend outward from the inside of the lock body 1. The first hollow groove 13 includes a clutch section 131 extending vertically and a fixed section 132 extending horizontally below the clutch section. The front of the lock body 1 is also provided with a second hollow groove 14 for the manual lever 31 to extend outward from the inside of the lock body 1. The second hollow groove 14 extends horizontally.

[0033] As described above, the clutch lever 41 extends from the lock body 1 through the first slot 13, which includes a clutch section 131 and a fixed section 132. Thus, the vertically extending clutch section 131 effectively controls the range and trajectory of the clutch lever 41's vertical movement, making the switching operation more intuitive. Furthermore, after pulling down the clutch lever 41 to unlock the bolt 3 and drive assembly 4, the clutch lever 41 can be further moved to the fixed section 132. The fixed section 132 prevents the clutch lever 41 from moving upwards to reset, thereby locking the bolt 3 and drive assembly 4 in a disengaged state. Additionally, the lock body 1 is also provided with a second slot 14 for the manual lever 31 to extend. The second slot 14 also effectively controls the range and trajectory of the manual lever 31's left and right movement, making the manual switch operation more intuitive.

[0034] like Figure 3As shown, preferably, the lock body 1 also includes a control circuit board 15. The control circuit board 15 controls the drive component 4 to operate according to the trigger signal from the push-button switch 5. The control circuit board 15 can also control the drive component 4 to operate according to received wireless control signals. The lock body 1 includes a battery 16 for powering the control circuit board 15 and the drive component 4. Thus, the control circuit board 15 integrates the local control signal and the wireless control signal from the push-button switch 5, greatly improving operational convenience and compatibility with smart home systems. The built-in battery 16 provides independent power to the entire electric system, freeing the lock from dependence on external power supply and lowering the installation threshold.

[0035] like Figure 1 and Figure 3 As shown, preferably, the lock body 1 is also provided with a charging port 17 for connecting an external power source to provide temporary emergency power to the lock body 1. In this way, when the internal battery 16 is depleted, a power source or rechargeable battery can be connected through the charging port 17 to temporarily power the lock.

[0036] like Figures 1 to 3 As shown, preferably, the lock body 1 is also equipped with a buzzer 18 and an LED light 19. The buzzer 18 is used to sound an alarm when the bolt 3 is extended but the sensing component 6 does not sense the bolt 3 being inserted into the bolt groove 21. The LED light 19 is used to flash an alarm when the bolt 3 is extended but the sensing component 6 does not sense the bolt 3 being inserted into the bolt groove 21. In this way, the buzzer 18 and the LED light 19 can actively provide sound and light alarms to the user when the lock is not properly locked, further improving security.

[0037] As stated above, this case protects a casement window lock compatible with both manual and electric switches, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A casement window lock that is compatible with both manual and electric switches, characterized in that The lock body (1) is fixed to the edge of the window sash, and the latch box (2) is fixed to the window frame and corresponds to the position of the lock body (1). The lock body (1) is provided with a latch (3) that can be horizontally extended / retracted towards the window frame. The latch box (2) is provided with a latch groove (21) for inserting the latch (3) when it is extended to prevent the window sash from rotating and opening. The lock body (1) is provided with a drive assembly (4) for electrically driving the latch (3) to extend / retract. The drive assembly (4) includes a part exposed in the window frame. The lock body (1) has a clutch lever (41) on its surface for controlling whether the drive assembly (4) is connected to the bolt (3) for transmission. The lock body (1) also has a push button switch (5) for controlling the action of the drive assembly (4). The bolt (3) has a manual lever (31) exposed on the surface of the lock body (1) for manually opening / closing the bolt (3). The bolt (3) and the bolt groove (21) are also provided with a sensing component (6) for sensing whether the bolt (3) is inserted into the bolt groove (21).

2. A casement window lock that is compatible with both manual and electric switches according to claim 1, characterized in that The drive assembly (4) includes a motor mount (42), which is fixedly installed in the lower part of the lock body (1) and can move up, down, left, and right. A support spring (43) is connected between the bottom of the motor mount (42) and the bottom of the lock body (1). A drive motor (44) is fixed on the motor mount (42). A rack (45) that can move left and right is also fixedly fixed on the motor mount (42). The rack (45) is driven by the output shaft of the drive motor (44). (44) Driven to move left and right, the rack (45) has an upwardly extending transmission pin (46) at one end, and the part of the latch (3) located inside the lock body (1) has a downward-facing pin groove (47). The pin groove (47) is used for the transmission pin (46) to be inserted into so that the rack (45) can drive the latch (3) to move left and right. The clutch lever (41) is fixed on the motor base (42) so that the motor base (42) can be pulled down to disengage the transmission pin (46) from the pin groove (47).

3. A casement window lock that is compatible with both manual and electric switches according to claim 1, characterized in that The latch (3) is a hollow structure. The sensing component (6) includes a Hall sensor (61) disposed in the latch (3) near one end of the latch groove (21). The latch groove (21) is provided with a magnet (62) corresponding to the position of the latch (3). The magnet (62) is used to trigger the Hall sensor (61) after the latch (3) is inserted into the latch groove (21).

4. A casement window lock according to any one of claims 1 to 3, wherein The lock body (1) is provided with a limiting groove (11) extending to the left and right behind the lock tongue (3). The lock tongue (3) is provided with a limiting baffle (32) extending backward into the limiting groove (11). Both the left and right ends of the limiting groove (11) are provided with buffer springs (12) for abutting the limiting baffle (32) when it moves to the left and right extreme positions.

5. A casement window lock that is compatible with both manual and electric switches according to claim 2, characterized in that The front of the lock body (1) is provided with a first hollow groove (13) for the clutch lever (41) to extend outward from inside the lock body (1). The first hollow groove (13) includes a clutch section (131) extending vertically and a fixed section (132) extending horizontally below the clutch section. The front of the lock body (1) is also provided with a second hollow groove (14) for the manual lever (31) to extend outward from inside the lock body (1). The second hollow groove (14) extends horizontally.

6. A casement window lock that is compatible with both manual and electric switches according to claim 1, characterized in that The lock body (1) is also provided with a control circuit board (15). The control circuit board (15) is used to control the drive component (4) to operate according to the trigger signal of the button switch (5) or the control circuit board (15) controls the drive component (4) to operate according to the received wireless control signal. The lock body (1) is provided with a battery (16) for powering the control circuit board (15) and the drive component (4).

7. A casement window lock that is compatible with both manual and electric switches according to claim 1, characterized in that The lock body (1) is also provided with a charging port (17) for connecting an external power source to provide temporary emergency power to the lock body (1).

8. A casement window lock that is compatible with both manual and electric switches according to claim 1, characterized in that The lock body (1) is also equipped with a buzzer (18) and an LED light (19). The buzzer (18) is used to sound an alarm when the bolt (3) is out but the sensing component (6) does not sense that the bolt (3) is inserted into the bolt groove (21). The LED light (19) is used to flash an alarm when the bolt (3) is out but the sensing component (6) does not sense that the bolt (3) is inserted into the bolt groove (21).

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