Mechanical elastic block type bidirectional anti-falling functional lock

Abstract

The utility model discloses a mechanical elastic block type bidirectional anti-falling functional lock, which belongs to the technical field of door and window locksets and comprises a lock shell, a shifting block and an anti-falling lock cylinder, a lock cylinder sliding groove extending longitudinally penetrates through the lock shell, two fixing grooves are arranged on one transverse side in the lock cylinder sliding groove, the shifting block is provided with a lock cylinder cavity, the anti-falling lock cylinder is positioned in the lock cylinder cavity, and the anti-falling lock cylinder is positioned in the lock cylinder cavity. A movable sliding groove extending in the longitudinal direction is formed in the side, close to the anti-falling lock cylinder, of the shifting block, and a movable groove is formed in the transverse side in the movable sliding groove. The anti-falling lock cylinder comprises a lock cylinder block, reset springs abutting against the inner wall of a lock cylinder cavity are arranged on the two longitudinal sides of the lock cylinder block, a fixed elastic block is arranged on the transverse side of the lock cylinder block, an elastic block spring is arranged between the bottom of the fixed elastic block and the lock cylinder block, and a shifting fork rod penetrating through a lock cylinder sliding groove and a movable sliding groove and extending outwards is arranged on one side of the lock cylinder block. The function lock can achieve the bidirectional anti-falling function.

Description

Technical Field

[0001] This utility model relates to the field of door and window lock technology, specifically to a mechanical spring-type two-way anti-fall lock. Background Technology

[0002] A single-cylinder lock is a common type of lock used in windows, French doors, and other similar structures. It typically locks or unlocks doors and windows by moving the handle up or down. Currently, single-cylinder locks commonly used in doors and windows usually lock by moving the handle upwards. Internally, they often incorporate an anti-fall mechanism to prevent the bolt from moving downwards under gravity or external forces. While the bolt can still move downwards by moving the handle, this prevents accidental unlocking due to the bolt's downward movement under gravity and enhances the lock's security. However, single-cylinder locks with anti-fall features require specific installation orientation to function. Incorrect installation orientation will compromise their security and increase the difficulty of installation.

[0003] Based on the above, Chinese Patent Publication No. CN218293207U discloses an anti-fall push-pull lock. The upper end of the actuating member is provided with a first limiting member, and the side of the first limiting member is provided with a second limiting member. The first limiting member is provided with a first limiting groove corresponding to the second limiting member. The upper end of the first limiting groove is provided with a first clearance portion that is inclined. The upper end of the second limiting member is provided with a second clearance portion corresponding to the first clearance portion. The sliding member is provided with a second limiting groove corresponding to the second limiting member. The end of the second limiting member away from the first limiting member is provided with an elastic member. The two ends of the elastic member abut against the second limiting member and the lock surface, respectively.

[0004] The aforementioned patent document discloses a push-pull lock that prevents the sliding member from falling by restricting the movement of the sliding member. In the locked state, the push-pull lock prevents the sliding member from sliding automatically, thus preventing the locking function of the push-pull lock from failing. However, the push-pull lock can only restrict the sliding member from sliding in one direction. If the push-pull lock is installed in the wrong direction during the installation process, the push-pull lock cannot achieve the anti-fall function and the locking function is also prone to failure. Therefore, there is still room for improvement in this push-pull lock. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes a mechanical spring-type bidirectional anti-fall lock, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] A mechanical spring-type two-way anti-fall lock includes a lock shell, an actuating block, and an anti-fall lock cylinder. The lock shell has a lock cylinder slide groove extending longitudinally through it. Two fixed grooves are provided on one side of the lock cylinder slide groove. The actuating block has a lock cylinder cavity. The anti-fall lock cylinder is located in the lock cylinder cavity. The actuating block has a movable slide groove extending longitudinally on the side near the anti-fall lock cylinder. A movable groove is provided on one side of the movable slide groove.

[0007] The anti-fall lock cylinder includes the following structure: a lock cylinder block; a return spring that abuts against the inner wall of the lock cylinder cavity on both longitudinal sides of the lock cylinder block; a fixed spring block that matches both the fixed groove and the movable groove on one transverse side of the lock cylinder block; a spring block spring between the bottom of the fixed spring block and the lock cylinder block; and a fork rod that extends outward through the lock cylinder slide groove and the movable slide groove on one side of the lock cylinder block.

[0008] As a further technical solution of this utility model, the top of the fixing spring block is provided with a fixing head that matches the fixing groove, and the fixing head is in the shape of a square prism.

[0009] As a further technical solution of this utility model, the top of the fixed spring block is provided with a movable head that matches the movable groove. The top of the movable head is arc-shaped, and the movable groove is V-shaped.

[0010] As a further technical solution of this utility model, the actuating block is provided with a movable slider on the side near the anti-fall lock cylinder, and the movable groove passes through the two opposite sides of the movable slider.

[0011] As a further technical solution of this utility model, an inner slider is provided between the movable slider and the toggle block, and the lock core slide groove is composed of an inner slide groove that matches the inner slider and an outer slide groove that matches the movable slider. The width of the inner slide groove is smaller than the width of the outer slide groove.

[0012] As a further technical solution of this utility model, the lock cylinder block is provided with a spring block groove on one side of its horizontal direction, which matches the fixed spring block, and the fixed spring block extends outward from the spring block groove.

[0013] As a further technical solution of this utility model, the toggle block is provided with a hand-operated protrusion on the side away from the lock housing, and the hand-operated protrusion is provided with a hand-operated groove at both ends of its longitudinal direction.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model's functional lock has an anti-fall function when unlocking or locking. When the lock is unlocked or locked by pushing the toggle block, the movable groove disengages from one of the fixed grooves by squeezing the fixed spring block, thus putting the anti-fall lock cylinder into an active state. At the same time, it moves the anti-fall lock cylinder towards the other fixed groove. The fixed spring block will be embedded into the fixed groove under the action of the spring block spring force, thus putting the anti-fall lock cylinder back into a fixed state. During the installation of the functional lock on doors and windows, there is no need to distinguish between the top and bottom of the functional lock or follow a specific installation direction to achieve the anti-fall function. Moreover, the functional lock has the anti-fall function in both the locked and unlocked states, reducing the installation difficulty of the functional lock and improving the convenience of its use. Attached Figure Description

[0016] Figure 1 A schematic diagram of a mechanical spring-type two-way anti-fall lock. Figure 1 .

[0017] Figure 2 This is a disassembly diagram of a mechanical spring-loaded two-way anti-fall lock. Figure 1 .

[0018] Figure 3 A schematic diagram of a mechanical spring-type two-way anti-fall lock. Figure 2 .

[0019] Figure 4 This is a disassembly diagram of a mechanical spring-loaded two-way anti-fall lock. Figure 2 .

[0020] Figure 5 This is a disassembly diagram of the anti-fall lock cylinder of a mechanical spring-type two-way anti-fall lock.

[0021] Figure 6 This is a schematic diagram illustrating the change in state of a mechanical spring-type two-way anti-fall lock.

[0022] Wherein: 1-lock outer shell, 11-lock cylinder slide groove, 12-fixed groove, 13-inner slide groove, 14-outer slide groove, 2-moving block, 21-lock cylinder cavity, 22-movable slide groove, 23-movable groove, 24-movable slider, 25-inner slider, 26-manual lever protrusion, 27-manual lever groove, 3-anti-falling lock cylinder, 31-lock cylinder block, 32-reset spring, 33-fixed spring block, 34-spring block spring, 35-pulling fork rod, 36-fixed head, 37-movable head, 38-spring block groove. Detailed Implementation

[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A mechanical spring-type bidirectional anti-fall lock includes a lock housing 1, a toggle block 2, and an anti-fall lock cylinder 3. The lock housing 1 has a lock cylinder slide groove 11 extending longitudinally through it. Two fixed grooves 12 are provided on one side of the lock cylinder slide groove 11. A lock cylinder cavity 21 is provided on one side of the toggle block 2. The anti-fall lock cylinder 3 is located in the lock cylinder cavity 21. A movable slide groove 22 extending longitudinally is provided on the side of the toggle block 2 near the anti-fall lock cylinder 3. A movable groove 23 is provided on one side of the movable slide groove 22.

[0025] The anti-fall lock cylinder 3 includes the following structure: a lock cylinder block 31; a return spring 32 that abuts against the inner wall of the lock cylinder cavity 21 on both longitudinal sides of the lock cylinder block 31; a fixed spring block 33 that matches both the fixed groove 12 and the movable groove 23 on one lateral side of the lock cylinder block 31; a spring block spring 34 between the bottom of the fixed spring block 33 and the lock cylinder block 31; and a fork rod 35 that extends outward through the lock cylinder slide groove 11 and the movable slide groove 22 on one side of the lock cylinder block 31.

[0026] This utility model relates to a single-cylinder lock commonly used in structures such as windows and French doors. The lock is fixed to the door or window via the lock housing 1. One side of the locking block 2 is located on the surface of the door or window, while the other side is embedded inside the door or window. After the lock is installed, the lock cylinder slide groove 11 extends perpendicularly to the ground. During use, the locking block 2 is moved up and down by the user's finger, which in turn moves the anti-falling lock cylinder 3 synchronously. During the movement of the anti-falling lock cylinder 3, the latch moves up and down or extends and retracts via the lever 35, thereby fixing or releasing the latch from the door or window frame, thus locking or unlocking the door or window.

[0027] The functional lock of this utility model has a two-way anti-fall function. To clearly explain the anti-fall function of the functional lock, the anti-fall lock cylinder 3 is first set to a fixed state. In this state, the toggle block 2 and the anti-fall lock cylinder 3 move to the limit at one end of the lock cylinder slide groove 11. The movable groove 23 matches the position of one of the fixed grooves 12, and the fixed spring block 33 is embedded in the matching movable groove 23 and fixed groove 12 under the action of the spring block spring 34. By restricting the movement of the fixed spring block 33 along the lock cylinder slide groove 11 through the fixed groove 12, the fork lever 35 can not move longitudinally under the action of gravity or external force, thereby realizing the anti-fall function of the functional lock.

[0028] The specific principle of the two-way anti-fall function of the functional lock is as follows: When the actuating block 2 is moved towards one end of the other fixed groove 12 in the functional lock by external force, the anti-fall lock cylinder 3 will be temporarily stationary, causing relative movement between the actuating block 2 and the fixed spring block 33. During this process, the top of the fixed spring block 33 will abut against the inner wall of the movable groove 23 and gradually move towards the movable slide 22, compressing the spring block spring 34 and causing the fixed spring block 33 to gradually disengage from the fixed groove 12. At the same time, the return spring 32 on one side is compressed. When the fixed spring block 33 disengages from the fixed groove 12, the anti-fall lock... When the core 3 is in the active state, the compressed return spring 32 releases its elastic potential energy, causing the fixed spring block 33 to move in the direction of the toggle block 2 until the active groove 23 matches another fixed groove 12. Under the action of the spring block spring 34, the fixed spring block 33 is embedded in the active groove 23 and the fixed groove 12 that match each other at this time, and the anti-fall lock core 3 is fixed again. The anti-fall lock core 3 can move to the position of any fixed groove 12 and the anti-fall function can be achieved by restricting the movement of the fixed spring block 33, so that the functional lock has a two-way anti-fall function.

[0029] Reference Figure 6The attached diagram illustrates the process of changing the state of the functional lock, i.e., changing from the unlocked state to the locked state or from the locked state to the unlocked state. During the process of changing the state of the functional lock, the actuating block 2 moves from one end of the lock cylinder slide 11 to the other end under the action of external force, and drives the fork lever 35 to move synchronously, thereby locking or unlocking the door or window through the functional lock. Based on the two-way anti-fall principle of the functional lock, when the door or window is locked or unlocked by the functional lock, the anti-fall lock cylinder 3 is in a fixed state, and the fork lever 35 will not move longitudinally under the action of gravity or external force, thereby preventing the locked functional lock from being unlocked or the unlocked functional lock from being locked, which can improve the anti-theft performance of the functional lock. In addition, during the installation of the functional lock on the door or window, the functional lock does not need to distinguish between the top and bottom and follow a specific installation direction, and the functional lock can also achieve the anti-fall function. Moreover, the functional lock has the anti-fall function in both the locked and unlocked states, reducing the installation difficulty of the functional lock and improving the convenience of the functional lock during use.

[0030] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The top of the fixed spring block 33 is provided with a fixed head 36 that matches the fixed groove 12. The fixed head 36 is square prism in shape. The fixed groove 12 is U-shaped, arc-shaped, or square. The shape of the fixed groove 12 is preferably CNC machined and U-shaped. When the anti-fall lock cylinder 3 is in a fixed state, the fixed head 36 will be embedded in the fixed groove 12 under the elastic force of the spring block spring 34. Since the sides of the fixed head 36 and the fixed groove 12 that abut against each other extend laterally, the fixed groove 12 can restrict the fixed spring block 33 so that the anti-fall lock cylinder 3 cannot move longitudinally, thereby ensuring the stability of the anti-fall function of the functional lock.

[0031] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The fixed spring block 33 has a movable head 37 at its top that matches the movable groove 23. The top of the movable head 37 is arc-shaped, and the movable groove 23 is V-shaped. When the actuating block 2 moves longitudinally to lock or unlock, the V-shaped movable groove 23 and the arc-shaped movable head 37 abut against each other, causing the fixed spring block 33 to gradually move toward the movable slide 22. This reduces the friction between the fixed spring block 33 and the movable groove 23 and makes their movement smoother, making it easier for the actuating block 2 to be moved and for the anti-falling lock cylinder 3 to enter the active state. It also improves the smoothness of the unlocking or locking operation of the functional lock.

[0032] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 , Figure 4 The actuating block 2 has a movable slider 24 on the side near the anti-fall lock cylinder 3. The movable slide groove 22 passes through the opposite sides of the movable slider 24. The movable slider 24 is fixed to the opening of the lock cylinder cavity 21 in the actuating block 2 by screws. The movable slider 24 can restrict the anti-fall lock cylinder 3 in the lock cylinder cavity 21 to prevent the anti-fall lock cylinder 3 from disengaging from the actuating block 2. The movable slide groove 22 allows the anti-fall lock cylinder 3 to move longitudinally to realize the unlocking or locking operation of the functional lock.

[0033] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 , Figure 4 An inner slider 25 is provided between the movable slider 24 and the actuating block 2. The lock cylinder groove 11 is composed of an inner groove 13 that matches the inner slider 25 and an outer groove 14 that matches the movable slider 24. The width of the inner groove 13 is smaller than the width of the outer groove 14. The movable slider 24 is fixedly connected to the actuating block 2 through one side of the inner slider 25. During the longitudinal movement of the actuating block 2, the movable slider 24 and the inner slider 25 move along the outer groove 14 and the inner groove 13 respectively. Since the width of the inner groove 13 is smaller, the actuating block 2, the inner slider 25, and the movable slider 24 are restricted by the lock cylinder groove 11 and are movably connected to the lock shell 1. The actuating block 2 can move longitudinally along the lock cylinder groove 11 without disengaging from the lock shell 1, thereby improving the structural stability of the functional lock.

[0034] As one of the preferred embodiments of this utility model, refer to Figure 5 The lock cylinder block 31 has a spring block groove 38 on one side that matches the fixed spring block 33. The fixed spring block 33 extends outward from the spring block groove 38. When the anti-fall lock cylinder 3 is in the active state, the fixed spring block 33 is stored in the spring block groove 38. When the anti-fall lock cylinder 3 is in the fixed state, the fixed spring block 33 extends out from the spring block groove 38. This structure can reduce the volume of the anti-fall lock cylinder 3, which is conducive to a more compact structure of the functional lock, and thus can be applied to more structures with limited space.

[0035] As one of the preferred embodiments of this utility model, refer to Figure 3 , Figure 4 The toggle block 2 is provided with a hand-operated protrusion 26 on the side away from the lock housing 1. Both ends of the hand-operated protrusion 26 are provided with hand-operated grooves 27. When the function lock is unlocked or locked, the hand-operated grooves 27 can serve as a good force point. Fingers can push the toggle block 2 through the hand-operated grooves 27 at both ends of the hand-operated protrusion 26, thereby making it easier to unlock or lock the function lock.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mechanical spring-loaded bidirectional anti-fall lock, comprising a lock housing (1), an actuating block (2), and an anti-fall lock cylinder (3), characterized in that, The lock housing (1) has a longitudinally extending lock cylinder groove (11) through it. The lock cylinder groove (11) has two fixed grooves (12) on one side in the transverse direction. The actuating block (2) has a lock cylinder cavity (21) on one side. The anti-fall lock cylinder (3) is located in the lock cylinder cavity (21). The actuating block (2) has a longitudinally extending movable groove (22) on the side near the anti-fall lock cylinder (3). The movable groove (22) has a movable groove (23) on one side in the transverse direction. The anti-fall lock cylinder (3) includes the following structure: a lock cylinder block (31), a return spring (32) that abuts against the inner wall of the lock cylinder cavity (21) on both longitudinal sides of the lock cylinder block (31), a fixed spring block (33) that matches the fixed groove (12) and the movable groove (23) on one side of the lock cylinder block (31), a spring block spring (34) between the bottom of the fixed spring block (33) and the lock cylinder block (31), and a fork rod (35) that extends outward through the lock cylinder slide groove (11) and the movable slide groove (22) on one side of the lock cylinder block (31).

2. The mechanical spring-type bidirectional anti-fall lock according to claim 1, characterized in that, The top of the fixed spring block (33) is provided with a fixing head (36) that matches the fixing groove (12), and the fixing head (36) is in the shape of a square prism.

3. The mechanical spring-type bidirectional anti-fall lock according to claim 1, characterized in that, The fixed spring block (33) has a movable head (37) at the top that matches the movable groove (23). The top of the movable head (37) is arc-shaped, and the movable groove (23) is V-shaped.

4. The mechanical spring-type bidirectional anti-fall lock according to claim 1, characterized in that, The actuating block (2) has a movable slider (24) on the side near the anti-fall lock cylinder (3), and the movable groove (22) passes through the opposite sides of the movable slider (24).

5. The mechanical spring-type bidirectional anti-fall lock according to claim 4, characterized in that, An inner slider (25) is provided between the movable slider (24) and the toggle block (2). The lock cylinder groove (11) is composed of an inner groove (13) that matches the inner slider (25) and an outer groove (14) that matches the movable slider (24). The width of the inner groove (13) is smaller than the width of the outer groove (14).

6. The mechanical spring-type bidirectional anti-fall lock according to claim 1, characterized in that, The lock cylinder block (31) has a spring block groove (38) on one side of its horizontal direction that matches the fixed spring block (33), and the fixed spring block (33) extends outward from the spring block groove (38).

7. The mechanical spring-type bidirectional anti-fall lock according to claim 1, characterized in that, The toggle block (2) has a hand-operated protrusion (26) on the side away from the lock housing (1), and the hand-operated protrusion (26) has a hand-operated groove (27) at both ends of its longitudinal direction.

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