Door and window lock with key external force double-triggering mechanism

Abstract

The utility model relates to the technical field of door and window accessories, in particular to a door and window lock with a key external force double-triggering mechanism, which realizes a double-mode unlocking mechanism of outdoor key triggering and indoor and outdoor force triggering through the unique design that a key hole extends to a connecting shaft and is matched with a linkage structure of a rotating piece and a transmission shifting piece. On the outdoor side, the key can simultaneously drive the lock cylinder and the rotating piece to achieve synchronous rotating unlocking. On the indoor side, a user can directly apply force to the transmission shifting piece to drive the rotating piece to rotate, and quick unlocking can be achieved without a key; and the operation convenience of opening and closing doors and windows is improved. And meanwhile, the door and window has the advantages of compact structure and high reliability, and is suitable for door and window use scenes with both safety and convenience.

Description

Technical Field

[0001] This utility model relates to the field of door and window accessories technology, and in particular to a door and window lock with a key-operated external force dual triggering mechanism. Background Technology

[0002] Door and window locks are key components of building security, their core function being to control the opening and closing of doors and windows mechanically or electronically. Currently, common locks typically employ a design where a key and a knob / handle work together. This means the user must first use the key from the outside to unlock the door or window, and then open it by rotating or pulling the handle. While this traditional structure meets basic security needs, its operational logic and mechanical design still have room for improvement.

[0003] The existing locks have the following main technical problems in actual use: First, their operation mode of unlocking first and then opening is not efficient enough when used frequently and is cumbersome; second, traditional locks have many transmission parts, which are prone to wear and tear after long-term use, affecting the smoothness of operation. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a door and window lock with a key-driven external force dual triggering mechanism.

[0005] The present invention adopts the following technical solution:

[0006] A door and window lock with a key-operated external force dual triggering mechanism includes a lock cylinder, a rotating component, and a transmission lever. One end of the lock cylinder extends to a connecting shaft, and the lock cylinder has a keyhole for key insertion. One end of the keyhole extends to the connecting shaft. The rotating component is sleeved on the outside of the connecting shaft, and the side of the rotating component away from the lock cylinder extends to a plug-in shaft, which is fixedly connected to the transmission lever.

[0007] The lock cylinder has an unlocked state and a locked state; when the lock cylinder is in the unlocked state, the key drives the lock cylinder and the rotating component to rotate synchronously; when the lock cylinder is in the locked state, an external force rotates the transmission lever to drive the transmission lever to rotate relative to the lock cylinder.

[0008] Preferably, the outer wall of the connecting shaft is provided with a radially extending through hole, which communicates with the keyhole; the inner wall of the rotating component is provided with a bayonet; when the lock cylinder is in the unlocked state, the key passes through the through hole and extends into the bayonet, and rotating the key can drive the lock cylinder and the rotating component to rotate synchronously.

[0009] Preferably, the transmission paddle is provided with a insertion hole for the insertion shaft to be inserted; the inner wall of the insertion hole and the outer wall of the insertion shaft are both provided with corresponding flat positions to realize the synchronous rotation of the transmission paddle and the rotating component.

[0010] Preferably, the lock cylinder has at least one spring groove, the bottom end of the spring groove is connected to the keyhole, the spring groove has a tumbler, and the top of the tumbler has a spring; when the key is inserted into the keyhole, the tumbler compresses the spring, and the lock cylinder unlocks.

[0011] Preferably, a lock shell is fitted around the outer side of the lock cylinder and the rotating component.

[0012] Preferably, the lock housing has a positioning block at one end facing the transmission lever; a positioning piece that moves synchronously with the plug shaft is sleeved on the outer side, and the side wall of the positioning piece extends to provide an abutment portion; when the rotating component rotates at a certain angle, the abutment portion abuts against the positioning block.

[0013] Preferably, the positioning piece is provided with a connecting hole for the insertion shaft to be inserted, and the inner wall of the connecting hole and the outer wall of the insertion shaft are both provided with corresponding flat positions, so as to realize the synchronous rotation of the positioning piece and the rotating part.

[0014] Preferably, the end of the lock cylinder away from the transmission lever is connected to a connecting seat, and the connecting seat is provided with an insertion hole that communicates with the keyhole.

[0015] Preferably, the inner side of the connector is provided with a dustproof plate, and the lock cylinder is provided with a sliding groove on the side facing the connector; the dustproof plate moves along the sliding groove to cover or expose the mortise.

[0016] Preferably, the dustproof sheet includes a shielding part and a sliding part that are perpendicular to each other and integrally formed, and the sliding part is slidably connected to the groove.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model relates to a door and window lock with a key-operated external force dual-trigger mechanism. Through a unique design extending the keyhole to the connecting shaft, and in conjunction with the linkage structure of the rotating component and the transmission paddle, it achieves a dual-mode unlocking mechanism: external key triggering and internal external force triggering. On the external side, the key can simultaneously drive the lock cylinder and the rotating component to achieve synchronous rotation and unlocking. On the internal side, the user can directly apply force to the transmission paddle to drive the rotating component to rotate, enabling quick unlocking without a key; thus improving the ease of opening and closing doors and windows. It also boasts the advantages of compact structure and high reliability, making it suitable for door and window usage scenarios that balance security and convenience. Attached Figure Description

[0019] Figure 1This is a structural schematic diagram of the door and window lock with a key-operated external force dual triggering mechanism according to this utility model;

[0020] Figure 2 for Figure 1 A structural diagram of door and window locks from another angle;

[0021] Figure 3 for Figure 1 Exploded view of the structure of door and window locks;

[0022] Figure 4 for Figure 1 An exploded view of the structure of door and window locks from another angle;

[0023] Figure 5 for Figure 1 A top view of the door and window locks;

[0024] Figure 6 for Figure 5 Sectional view along AA;

[0025] Figure 7 for Figure 6 A magnified view of the partial structure of circle B in the middle;

[0026] Figure 8 for Figure 4 A schematic diagram of the structure of the dustproof sheet in the middle.

[0027] Numbering on the map:

[0028] 10-Lock case; 11-Positioning block; 20-Lock cylinder; 21-Connecting shaft; 211-Through hole; 22-Keyhole; 23-Spring groove; 24-Slide groove; 30-Rotating component; 31-Plug-in shaft; 32-Bayonet; 40-Transmission lever; 41-Plug-in hole; 50-Positioning piece; 51-Abutting part; 52-Connecting hole; 60-Connecting seat; 61-Plug-in hole; 62-Dustproof piece; 621-Blocking part; 622-Sliding part; 70-Key. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1 to 8 As shown, this utility model discloses a door and window lock with a key-operated external force dual-trigger mechanism, comprising a lock housing 10, a lock cylinder 20, a rotating component 30, and a transmission lever 40. The lock cylinder 20 and the rotating component 30 are both installed inside the lock housing 10. One end of the transmission lever 40 extends out of the lock housing 10 and is connected to the door / window opening and closing device. When the transmission lever 40 rotates, the door / window can be unlocked. A connecting shaft 21 extends from one end of the lock cylinder 20, and the lock cylinder 20 has a keyhole 22 for inserting a key 70. One end of the keyhole 22 extends to the connecting shaft 21. The rotating component 30 is sleeved on the outside of the connecting shaft 21, and a insertion shaft 31 extends from the end of the rotating component 30 away from the lock cylinder 20. The insertion shaft 31 is fixedly connected to the transmission lever 40.

[0033] The lock cylinder 20 has an unlocked state and a locked state. When the lock cylinder 20 is in the unlocked state, the key 70 drives the lock cylinder 20 and the rotating component 30 to rotate synchronously. When the lock cylinder 20 is in the locked state, the transmission lever 40 can be driven to rotate relative to the lock cylinder 20 by external force.

[0034] Next, the working principle of the door and window lock with key-operated external force dual triggering mechanism of this application will be described in detail:

[0035] When outdoors: as Figure 6As shown, when the key 70 is inserted into the keyhole 22, the lock cylinder 20 is in the unlocked state. At this time, turning the key 70 can drive the lock cylinder 20 and the rotating part 30 to rotate synchronously, thereby causing the transmission lever 40 to rotate and unlock the door and window. Conversely, on the outside side, the key 70 is not inserted, and the lock cylinder 20 is in the locked state. The lock cylinder 20 cannot be rotated, and therefore the door and window cannot be unlocked on the outside side.

[0036] When on the outside: no key 70 is needed. The lock cylinder 20 is locked, and the transmission lever 40 can rotate relative to the lock cylinder 20 without interference. Therefore, the user can directly apply external force to the transmission lever 40 to rotate it, thereby unlocking the door and window from the outside.

[0037] Through the aforementioned structure and operating steps, the dual-trigger mechanism of this application is realized. On the one hand, rotating the key 70 on the outdoor side unlocks the doors and windows; on the other hand, the doors and windows are unlocked directly by external force on the indoor side. While meeting security requirements, the operating logic is simplified, improving the user experience. Specifically, the mechanical structure of traditional door and window locks is optimized and simplified through the linkage of three components: the lock cylinder 20, the rotating component 30, and the transmission lever 40.

[0038] Specifically, the outer wall of the connecting shaft 21 is provided with a radially extending through hole 211, which communicates with the keyhole 22; the inner wall of the rotating component 30 is provided with a bayonet 32. For example... Figure 6 As shown, when the key 70 is inserted into the keyhole 22, the lock cylinder 20 is in the unlocked state. One end of the key 70 extends into the connecting shaft 21 and through the through hole 211 into the bayonet 32. At this time, when the key 70 is rotated, the key 70 interferes with the bayonet 32, thereby causing the rotating part 30 to rotate accordingly, and finally realizing the synchronous rotation of the lock cylinder 20 and the rotating part 30.

[0039] Specifically, the transmission paddle 40 is provided with a insertion hole 41 for the insertion shaft 31 to be inserted; the inner wall of the insertion hole 41 and the outer wall of the insertion shaft 31 are both provided with corresponding flat positions to realize the synchronous rotation of the transmission paddle 40 and the rotating part 30.

[0040] Specifically, the lock cylinder 20 has at least one spring groove 23, the bottom end of which is connected to the keyhole 22. A pin (not shown in the figure) is located within the spring groove 23, and a spring (not shown in the figure) is located on top of the pin. When the key 70 is inserted into the keyhole 22, the key 70 pushes up the pin, causing the pin to compress the spring, thus unlocking the lock cylinder 20. The use of a pin-type lock cylinder 20 improves the security level of this application.

[0041] Specifically, the lock housing 10 has a positioning block 11 at one end facing the transmission paddle 40; a positioning piece 50 that moves synchronously with the insertion shaft 31 is sleeved on the outer side, and the side wall of the positioning piece 50 extends to provide an abutment portion 51; when the rotating member 30 rotates at a certain angle, the abutment portion 51 abuts against the positioning block 11, thereby limiting the rotation angle of the rotating member 30 and the transmission paddle 40 and ensuring the stability of the structure. Furthermore, the positioning piece 50 has a connecting hole 52 for the insertion shaft 31 to be inserted, and the inner wall of the connecting hole 52 and the outer wall of the insertion shaft 31 are both provided with corresponding parallel positions, so as to realize the synchronous rotation of the positioning piece 50 and the rotating member 30, and ensure that the rotation angle of the transmission paddle 40 and the rotating member 30 can be limited.

[0042] Specifically, a connecting seat 60 is connected to the end of the lock cylinder 20 away from the transmission lever 40. The connecting seat 60 has an insertion hole 61 that communicates with the keyhole 22. A dustproof plate 62 is provided on the inner side of the connecting seat 60; a sliding groove 24 is provided on the side of the lock cylinder 20 facing the connecting seat 60; the dustproof plate 62 moves along the sliding groove 24 to cover or expose the insertion hole 61. The connecting seat 60 facilitates the installation of the lock cylinder 20. In addition, the sliding dustproof plate 62 provided in the connecting seat 60 can prevent external dust from entering the keyhole 22 and protect the internal structure. It should be noted that when the key 70 is inserted into the connecting seat 60, the key 70 can push the dustproof plate 62 to move along the sliding groove 24, ensuring that the key 70 can be inserted into the keyhole 22. Furthermore, the dustproof plate 62 includes a blocking part 621 and a sliding part 622 that are perpendicular to each other and integrally formed. The sliding part 622 is slidably connected to the sliding groove 24.

[0043] Compared to existing technologies, the door and window lock with a key-operated external force dual-trigger mechanism of this utility model, through the unique design of the keyhole 22 extending to the connecting shaft 21, and the linkage structure of the rotating component 30 and the transmission lever 40, realizes a dual-mode unlocking mechanism of outdoor key 70 triggering and indoor / outdoor force triggering. On the outdoor side, the key 70 can simultaneously drive the lock cylinder 20 and the rotating component 30 to achieve synchronous rotation and unlocking; on the indoor side, the user can directly apply force to the transmission lever 40 to drive the rotating component 30 to rotate, and unlock quickly without the need for the key 70; thus improving the ease of opening and closing doors and windows. It also has the advantages of compact structure and high reliability, making it suitable for door and window usage scenarios that balance security and convenience.

[0044] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A door and window lock with a key-operated external force dual-trigger mechanism, comprising a lock cylinder, a rotating component, and a transmission lever, characterized in that: One end of the lock cylinder extends with a connecting shaft, and the lock cylinder has a keyhole for key insertion. One end of the keyhole extends to the connecting shaft. The rotating component is sleeved on the outside of the connecting shaft, and the side of the rotating component away from the lock cylinder extends with a plug-in shaft. The plug-in shaft is fixedly connected to the transmission lever. The lock cylinder has an unlocked state and a locked state; when the lock cylinder is in the unlocked state, the key drives the lock cylinder and the rotating component to rotate synchronously; when the lock cylinder is in the locked state, an external force rotates the transmission lever to drive the transmission lever to rotate relative to the lock cylinder.

2. The key operated double-throw mechanism of the door and window lock according to claim 1, characterized in that, The outer wall of the connecting shaft is provided with a radially extending through hole, which is connected to the keyhole; the inner wall of the rotating component is provided with a bayonet; when the lock cylinder is in the unlocked state, the key passes through the through hole and extends into the bayonet, and rotating the key can drive the lock cylinder and the rotating component to rotate synchronously.

3. The key operated double-throw mechanism door and window lockset according to claim 1, wherein, The transmission paddle is provided with a insertion hole for the insertion shaft to be inserted; the inner wall of the insertion hole and the outer wall of the insertion shaft are both provided with corresponding flat positions to realize the synchronous rotation of the transmission paddle and the rotating component.

4. The key operated double-throw mechanism door and window lockset according to claim 1, wherein, The lock cylinder has at least one spring groove, the bottom end of which is connected to the keyhole. A pin is provided in the spring groove, and a spring is provided on the top of the pin. When the key is inserted into the keyhole, the pin compresses the spring, and the lock cylinder is unlocked.

5. The key operated double-throw mechanism door and window lockset according to claim 1, wherein, A lock shell is fitted around the outside of the lock cylinder and the rotating component.

6. The door and window lock with a key-operated external force dual-trigger mechanism according to claim 5, characterized in that, The lock housing has a positioning block at one end facing the transmission lever; a positioning piece that moves synchronously with the plug shaft is sleeved on the outer side, and the side wall of the positioning piece extends to provide an abutment portion; when the rotating component rotates at a certain angle, the abutment portion abuts against the positioning block.

7. The key operated double-throw mechanism of a door and window lock according to claim 6, characterized in that, The positioning plate is provided with a connecting hole for the insertion shaft to be inserted. The inner wall of the connecting hole and the outer wall of the insertion shaft are both provided with corresponding flat positions to realize the synchronous rotation of the positioning plate and the rotating part.

8. The key operated double-throw mechanism of door and window lockset according to claim 1, wherein, The lock cylinder is connected to a connecting seat at the end away from the transmission lever, and the connecting seat has an insertion hole that communicates with the keyhole.

9. The key operated double-throw mechanism of claim 8, wherein, The inner side of the connector is provided with a dustproof plate, and the lock cylinder is provided with a sliding groove on the side facing the connector; the dustproof plate moves along the sliding groove to cover or expose the mortise.

10. The key operated double-throw mechanism of a door and window lock according to claim 9, wherein, The dustproof sheet includes a shielding part and a sliding part that are perpendicular to each other and integrally formed, and the sliding part is slidably connected to the groove.

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