Elastic sheet type bidirectional anti-falling functional lock

Abstract

The utility model discloses an elastic sheet 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 two transverse sides in the lock cylinder sliding groove, a lock cylinder cavity is arranged on one side of the shifting block, and the anti-falling lock cylinder is positioned in the lock cylinder cavity; 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 piece is arranged on one side of the lock cylinder block, a fixed protruding block matched with a fixed groove and a movable sliding block are arranged on one side of the fixed elastic piece, and the movable sliding block is fixedly connected with a shifting block. A movable sliding groove extending in the longitudinal direction penetrates through the movable sliding block, a movable groove matched with the fixed protruding block is formed in one side of the movable sliding block, and a shifting fork rod penetrating through the lock cylinder sliding groove and the 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 spring-loaded 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 spring-loaded bidirectional anti-fall lock, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] A spring-loaded bidirectional anti-fall lock includes a lock housing, a toggle block, and an anti-fall lock cylinder. The lock housing has a lock cylinder groove extending longitudinally through it. Two fixing grooves are provided on both sides of the lock cylinder groove in the transverse direction. A lock cylinder cavity is provided on one side of the toggle block, and the anti-fall lock cylinder is located in the lock cylinder cavity.

[0007] The anti-fall lock cylinder includes the following structure: a lock cylinder block, with return springs abutting against the inner wall of the lock cylinder cavity on both longitudinal sides of the lock cylinder block; a fixed spring sheet on one side of the lock cylinder block; a fixed protrusion matching the fixed groove on one side of the fixed spring sheet; a movable slider, which is fixedly connected to a toggle block; a movable slide groove extending longitudinally through the movable slider; a movable groove matching the fixed protrusion on one side of the movable slider; and a fork rod extending 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 movable groove is V-shaped.

[0009] As a further technical solution of this utility model, the lock cylinder block is provided with two limiting blocks on the side near the fixed spring piece, and the two limiting blocks respectively abut against the longitudinal ends of the fixed spring piece.

[0010] As a further technical solution of this utility model, the movable slider is provided with two clamping blocks on the side away from the lock cylinder block, and clamping grooves are formed between the clamping blocks and the movable slider. The two opposite ends of the fixed spring are embedded in the clamping grooves.

[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 fixed groove is provided on the side of the lock shell away from the anti-fall lock cylinder, the movable groove is provided on the side of the movable slider away from the toggle block, and the fixed protrusion is provided on the side of the fixed spring facing the toggle block.

[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] In both the unlocked and locked states, the internal anti-fall lock cylinder of this utility model is in a fixed state. At this time, only by pushing the toggle block can the movable slider be pushed through the movable groove to press the fixed spring, thereby disengaging the fixed protrusion from the fixed groove and putting the anti-fall lock cylinder into a movable state, thus realizing the unlocking or locking operation of the functional lock. This gives the functional lock a two-way anti-fall function. The compact structure of this utility model enables the unlocking or locking operation to be linked with the release of the anti-fall lock cylinder from the fixed state. Furthermore, the functional lock does not require distinguishing between the top and bottom or following a specific installation direction, improving the convenience of using the functional lock and reducing the installation difficulty. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a spring-loaded, two-way anti-fall lock. Figure 1 .

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

[0018] Figure 3 A schematic diagram of the structure of a spring-loaded, two-way anti-fall lock. Figure 2 .

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

[0020] Figure 5 This is a schematic diagram of the anti-fall lock cylinder of a spring-loaded, two-way anti-fall lock.

[0021] Figure 6 This is a disassembly diagram of the anti-fall lock cylinder of a spring-loaded, two-way anti-fall lock.

[0022] Wherein: 1-lock outer shell, 11-lock cylinder slide groove, 12-fixed groove, 121-inner slide groove, 122-outer slide groove, 2-moving block, 21-lock cylinder cavity, 22-manually operated protrusion, 23-manually operated groove, 3-anti-falling lock cylinder, 31-lock cylinder block, 32-reset spring, 33-fixed spring, 34-fixed protrusion, 35-movable slider, 351-movable slide groove, 352-movable groove, 353-inner slider, 36-pulling fork lever, 37-limiting block, 38-clamping block. 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 , Figure 6 A spring-loaded 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 longitudinally extending lock cylinder groove 11. The lock cylinder groove 11 has two horizontally extending fixing grooves 12 on both sides. The toggle block 2 has a lock cylinder cavity 21 on one side, and the anti-fall lock cylinder 3 is located in the lock cylinder cavity 21. The anti-fall lock cylinder 3 includes the following structure: a lock cylinder block 31, with return springs 32 on both longitudinal sides of the lock cylinder block 31 that abut against the inner wall of the lock cylinder cavity 21; a fixing spring 33 on one side of the lock cylinder block 31; a fixing protrusion 34 matching the fixing groove 12 on one side of the fixing spring 33; a movable slider 35, which is fixedly connected to the toggle block 2; a movable groove 351 extending longitudinally through the movable slider 35; a movable groove 352 matching the fixing protrusion 34 on one side of the movable slider 35; and a fork rod 36 extending outward through the lock cylinder groove 11 and the movable groove 351 on one side of the lock cylinder block 31.

[0025] 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 36, thereby fixing or releasing the latch from the door or window frame, thus locking or unlocking the door or window.

[0026] This utility model's functional lock has a two-way anti-fall function. To clearly explain the anti-fall function of the functional lock, firstly, the anti-fall lock cylinder 3 is 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 352 matches the position of one of the fixed grooves 12. The fixed spring 33 is preferably made of a metal material with good elasticity. The fixed protrusion 34 located in the center of the fixed spring 33 is embedded in the matching movable groove 352 and fixed groove 12 under the elastic force of the fixed spring 33. The fixed groove 12 restricts the movement of the fixed spring 33 along the lock cylinder slide groove 11. Since the fixed spring 33 is fixedly connected to the lock cylinder block 31, the toggle lever 36 cannot move longitudinally under the action of gravity or external force, thereby realizing the anti-fall function of the functional lock.

[0027] The specific principle of the functional lock of this utility model to achieve the two-way anti-fall function is as follows: When the functional lock is in the locked or unlocked state, the anti-fall lock cylinder 3 is in a fixed state. When the functional lock is unlocked or locked by pushing the toggle block 2, the toggle block 2 will compress the return spring 32 on one side of the anti-fall lock cylinder 3 through the lock cylinder cavity 21, and at the same time drive the movable slider 35 to move synchronously, while the other structures of the anti-fall lock cylinder 3 remain stationary. During the movement of the movable slider 35, it will squeeze the fixed protrusion 34 through the inner wall of the movable groove 352, causing the fixed spring 33 to undergo elastic deformation, and at the same time, the fixed protrusion 34 will gradually disengage from the fixed groove 12. When the fixed protrusion 34 disengages from the fixed groove 12, the anti-fall lock cylinder 3 will change to a movable state and be... The return spring 32 compressed in the lock cylinder cavity 21 releases elastic potential energy, causing the lock cylinder block 31 to move with the actuating block 2. When the actuating block 2 moves to the limit at the other end of the lock cylinder slide groove 11, the movable groove 352 matches with another fixed groove 12. Under the elastic force of the return spring 32, the anti-fall lock cylinder 3 and the lock cylinder cavity 21 of the actuating block 2 are reset. Under the elastic force of the fixed spring 33, the fixed protrusion 34 is re-embedded into the matching movable groove 352 and fixed groove 12, so that the anti-fall lock cylinder 3 returns to the fixed state. The functional lock can still achieve the anti-fall function. At this time, the unlocking or locking operation of the functional lock is completed. It can be seen that the functional lock can achieve the anti-fall function in both the unlocked and locked states, thus giving the functional lock a two-way anti-fall function.

[0028] In summary, when the functional lock of this utility model is in the unlocked or locked state, the internal anti-fall lock cylinder 3 is in a fixed state. At this time, only by pushing the toggle block 2 can the movable slider 35 be pushed through the movable groove 352 to squeeze the fixed spring, thereby causing the fixed protrusion 34 to disengage from the fixed groove 12 and the anti-fall lock cylinder 3 to be in an active state, thus realizing the unlocking or locking operation of the functional lock, and thus giving the functional lock a two-way anti-fall function. The compact structure of this utility model enables the unlocking or locking operation to be linked with the release of the anti-fall lock cylinder 3 from the fixed state. Furthermore, the functional lock does not need to distinguish between the top and bottom and follow a specific installation direction, improving the convenience of using the functional lock and reducing the installation difficulty of the functional lock.

[0029] As one of the preferred embodiments of this utility model, refer to Figure 2 , Figure 4 , Figure 5 , Figure 6The fixed groove 12 is U-shaped, arc-shaped, or square. Preferably, the fixed groove 12 is CNC machined and is U-shaped. The two sides of the fixed groove 12 are perpendicular to the lock cylinder slide 11. When the fixed protrusion 34 is embedded in the fixed groove 12, the fixed groove 12 can effectively restrict the anti-fall lock cylinder 3 from moving longitudinally by abutting against the fixed protrusion through its inner wall, thereby improving the stability of the anti-fall function of the functional lock. The movable groove 352 is V-shaped. The two sides of the movable groove 352 extend obliquely to connect with the movable slide 351. When the toggle block 2 drives the movable slider 35 to move and the fixed protrusion 34 is embedded in the movable groove 352, the movable groove 352 can gradually squeeze the fixed protrusion 34 through its oblique inner wall, causing the fixed spring 33 to undergo elastic deformation. This causes the fixed protrusion 34 to disengage from the fixed groove 12 and the anti-fall lock cylinder 3 to enter the active state, thereby allowing the functional lock to be unlocked or locked by the toggle block 2.

[0030] As one of the preferred embodiments of this utility model, refer to Figure 2 , Figure 4 , Figure 5 , Figure 6 Two limiting blocks 37 are provided on the side of the lock cylinder block 31 near the fixed spring 33. The two limiting blocks 37 abut against the two longitudinal ends of the fixed spring 33 respectively. The limiting blocks 37 can limit the two longitudinal ends of the fixed spring 33, so that the lock cylinder block 31 and the fixed spring 33 will only move synchronously or remain stationary in the longitudinal direction. The fixed spring 33 can better control the switching between the active and fixed states of the anti-fall lock cylinder 3. Two clamping blocks 38 are provided on the side of the movable slider 35 away from the lock cylinder block 31. The clamping blocks 38 and the movable slider 35 form clamping grooves. The opposite ends of the fixed spring 33 are embedded in the clamping grooves. The clamping blocks 38 and the limiting blocks 37 cooperate to fix the fixed spring 33 from multiple directions, preventing the fixed spring 33 from falling out of the anti-fall lock cylinder 3 and improving the stability of the internal structure of the functional lock.

[0031] As one of the preferred embodiments of this utility model, refer to Figure 4 An inner slider 353 is provided between the movable slider 35 and the actuating block 2. The lock cylinder slide groove 11 is composed of an inner slide groove 121 that matches the inner slider 353 and an outer slide groove 122 that matches the movable slider 35. The width of the inner slide groove 121 is smaller than the width of the outer slide groove 122. The movable slider 35 is fixedly connected to the actuating block 2 through one side of the inner slider 353. During the longitudinal movement of the actuating block 2, the movable slider 35 and the inner slider 353 move along the outer slide groove 122 and the inner slide groove 121, respectively. Since the width of the inner slide groove 121 is smaller, the actuating block 2, the inner slider 353, and the movable slider 35 are restricted by the lock cylinder slide groove 11 and are movably connected to the lock shell 1. The actuating block 2 can move longitudinally along the lock cylinder slide groove 11 without disengaging from the lock shell 1, thereby improving the structural stability of the functional lock.

[0032] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The fixed groove 12 is located on the side of the lock housing 1 away from the anti-fall lock cylinder 3, the movable groove 352 is located on the side of the movable slider 35 away from the actuating block 2, and the fixed protrusion 34 is located on the side of the fixed spring 33 facing the actuating block 2. The opening directions of the fixed groove 12 and the movable groove 352 are the same, and the fixed protrusion 34 is located on the side of the fixed spring 33 facing the movable groove 352. This structure allows the movable groove 352 to better compress the fixed protrusion 34, causing the fixed spring 33 to undergo elastic deformation. At the same time as the fixed spring 33 deforms, the fixed protrusion 34 can be disengaged from the fixed groove 12, so that the anti-fall lock cylinder 3 can smoothly enter the movable state, and thus the anti-fall lock cylinder 3 in the fixed state will not affect the unlocking or locking operation of the functional lock.

[0033] 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 22 on the side away from the lock housing 1. Both ends of the hand-operated protrusion 22 are provided with hand-operated grooves 23. When the function lock is unlocked or locked, the hand-operated grooves 23 can serve as a good force point. The fingers can push the toggle block 2 through the hand-operated grooves 23 at both ends of the hand-operated protrusion 22, thereby making it easier to unlock or lock the function lock.

[0034] 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 spring-loaded, two-way anti-fall lock, comprising a lock housing (1), a toggle block (2), and an anti-fall lock cylinder (3), characterized in that, The lock housing (1) has a lock cylinder groove (11) extending longitudinally through it. The lock cylinder groove (11) has two fixed grooves (12) on both sides 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 anti-fall lock cylinder (3) includes the following structure: a lock cylinder block (31), on both sides of the lock cylinder block (31) are reset springs (32) that abut against the inner wall of the lock cylinder cavity (21), on one side of the lock cylinder block (31) are fixed spring pieces (33), on one side of the fixed spring pieces (33) are fixed protrusions (34) that match the fixed grooves (12), and a movable slider (35), which is fixedly connected to the actuating block (2). The movable slider (35) has a movable groove (351) extending longitudinally through it, on one side of the movable slider (35) are movable grooves (352) that match the fixed protrusions (34), and on one side of the lock cylinder block (31) are a fork rod (36) that extends outward through the lock cylinder grooves (11) and the movable grooves (351).

2. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, The movable groove (352) is V-shaped.

3. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, The lock cylinder block (31) has two limiting blocks (37) on the side near the fixed spring (33), and the two limiting blocks (37) abut against the longitudinal ends of the fixed spring (33) respectively.

4. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, The movable slider (35) is provided with two clamping blocks (38) on the side away from the lock cylinder block (31). The clamping blocks (38) and the movable slider (35) form clamping grooves, and the two opposite ends of the fixed spring piece (33) are embedded in the clamping grooves.

5. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, An inner slider (353) is provided between the movable slider (35) and the toggle block (2). The lock cylinder groove (11) is composed of an inner groove (121) that matches the inner slider (353) and an outer groove (122) that matches the movable slider (35). The width of the inner groove (121) is smaller than the width of the outer groove (122).

6. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, The fixed groove (12) is located on the side of the lock shell (1) away from the anti-fall lock cylinder (3), the movable groove (352) is located on the side of the movable slider (35) away from the toggle block (2), and the fixed protrusion (34) is located on the side of the fixed spring (33) facing the toggle block (2).

7. The spring-loaded bidirectional anti-fall lock according to claim 1, characterized in that, The toggle block (2) has a hand-operated protrusion (22) on the side away from the lock housing (1), and the hand-operated protrusion (22) has a hand-operated groove (23) at both ends of its longitudinal direction.

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