A door and window lock

Abstract

A door and window lock, comprising a main body, a gland assembly and a hook piece, the gland assembly is fixed on the main body, the hook piece is movably arranged on the gland assembly, a spring pressing strip is arranged on the gland assembly, the spring pressing strip presses or does not press the hook piece, a buckle seat is arranged on a door and window frame, and a first guide inclined surface is arranged on the hook piece. The door and window lock sets the spring pressing strip on the gland assembly, the spring pressing strip can press or not press the hook piece, when the spring pressing strip does not press the hook piece, the hook piece automatically moves downward by using the gravity, so that the hook piece is buckled on the buckle seat, and then the door and window is locked, the user does not need to pull the pull plate downward, so that the closing and locking operation of the door and window is more convenient; in addition, when the spring pressing strip presses the hook piece, the pull plate needs to be pulled upward and downward, so that the hook piece is buckled on the buckle seat, and the locking mode can be suitable for any installation scene of the door and window lock, such as vertical or horizontal door and window lock, so that the applicability of the door and window lock is improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to a door and window lock. Background Technology

[0002] Most door and window locks on the market use a spring (torsion spring) and bolt (shaft) structure. One end of the spring presses on the lock body, and the other end presses on the lock hook. The lock hook rotates on the lock body through the bolt (shaft). When the door or window is locked, the lock hook rotates elastically and engages with the latch on the door or window frame. When the door or window is unlocked, the lock hook is manually rotated to disengage from the latch, and then the lock hook automatically resets under the action of the spring, forming an automatic locking mechanism. This type of door and window lock has a relatively complex structure and uses a spring for reset, which results in relatively high noise.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a door and window lock that is simple in structure, easy to operate, efficient in assembly, low in cost, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A door and window lock designed for this purpose includes a main body, characterized in that: it further includes a cover assembly and a lock hook, the cover assembly is fixed on the main body, the lock hook is movably disposed on the cover assembly, the cover assembly is provided with an elastic pressure strip, the elastic pressure strip may or may not press the lock hook, a buckle is provided on the door and window frame, and a first guide slope is provided on the lock hook.

[0006] When the elastic strip presses down on the lock hook and the door and window are closed, the lock hook moves upward under the action of external force so that when the door and window lock moves in the first direction, the lock hook avoids the latch seat. After the lock hook passes the latching part, it moves downward under the action of external force so that the lock hook is latched on the latch seat, thereby locking the door and window.

[0007] When the elastic strip does not press down on the lock hook and the door and window are closed, the door and window lock moves in the first direction, and the latch acts on the first guide slope to make the lock hook move upward to avoid the latch. After the lock hook passes the latch, it moves downward under the action of gravity so that the lock hook is engaged on the latch, thereby locking the door and window.

[0008] It also includes a latching component, and the cover assembly includes an automatic fastening component, which is fitted onto the main body. One end of the automatic fastening component is provided with a first latch, and the latching component is elastically and movably disposed at the other end of the automatic fastening component. The latching component is provided with a second latch, and the door and window are provided with mounting holes. One end of the mounting hole is provided with a first engaging part, and the other end is provided with a second engaging part. The first latch is engaged on the first engaging part, and the second latch is elastically engaged on the second engaging part, so that the door and window lock is fixed on the door and window.

[0009] The pressure cap assembly also includes a pressure cap fixed to the back of the main body. A protrusion is provided on the back of the main body, and an automatic fastening component is fitted onto the protrusion. A slot is formed between the pressure cap and the protrusion. A locking hook is movably mounted on the slot. A groove is formed on the front of the main body corresponding to the position of the protrusion. A through hole is provided on the groove, and a lever is provided on the locking hook for moving the locking hook up and down. The lever extends into the groove through the through hole. A locking hook is provided on one side of the locking hook, and openings are provided on both sides of the pressure cap. The locking hook extends out of the slot through the openings.

[0010] The latch is provided with a latching part for acting on the first guide slope, and the first guide slope is provided on the lock hook; when the lock hook moves upward and the door and window lock moves in the first direction, the lock hook avoids the latching part; when the lock hook passes over the latching part and moves downward, the lock hook latches onto the latching part, thereby locking the door and window.

[0011] It also includes an elastic element, which is disposed between the protrusion and the latching element. One end of the latching element is provided with a first protrusion, and the second latch is located on one side of the first protrusion. The other side of the first protrusion is provided with a second guide slope. When the door and window lock is installed, it moves in the second direction. The second latching part acts on the second guide slope to make the latching element move upward so that the first protrusion avoids the second latching part. After the first protrusion passes the second latching part, the latching element moves downward under the elastic force of the elastic element so that the second latch is locked on the second latching part.

[0012] The elastic element has a first foot at one end and a second foot at the other end. An action slope is provided on the protruding side. An action part is provided at one end of the latching element. One end of the elastic element rests against the action slope through the first foot, and the other end of the elastic element rests against the action part through the second foot.

[0013] The elastic pressure strip is set on the pressure cover, and the pressure cover is provided with a through groove on the periphery of the elastic pressure strip so that the elastic pressure strip can be bent. When the elastic pressure strip is bent into the pressure cover, it presses against the locking hook. When the elastic pressure strip is not bent into the pressure cover, it does not press against the locking hook.

[0014] The automatic fastener has notches on both sides, forming a groove between the notches and the sidewall of the protrusion. The pressure cap has protrusions on both sides, which engage with the grooves. The automatic fastener has a socket groove, and the pressure cap has a positioning groove. The automatic fastener is fitted onto the protrusion through the socket groove. The bottom of the socket groove has an opening, through which the protrusion passes and inserts into the positioning groove. The pressure cap is welded and fixed to the main body, and the automatic fastener is pressed between the main body and the pressure cap.

[0015] The other end of the bayonet is provided with a limiting protrusion, and the opening end is provided with a limiting part. When the bayonet moves downward, it is limited by the limiting protrusion to the limiting part.

[0016] Door and window locks are installed on both sides of the door and window; or, door and window locks are installed on one side of the door and window.

[0017] This utility model of door and window lock features a spring-loaded pressure strip on the pressure cover assembly. This strip can press or not press the lock hook. When the spring-loaded pressure strip is not pressing the lock hook, the lock hook automatically moves downwards under its own weight, engaging with the latch seat and locking the door or window. Users do not need to move the lever downwards, making closing and locking operations more convenient. Conversely, when the spring-loaded pressure strip presses the lock hook, the lever needs to be moved up and down to engage it with the latch seat. This locking method is applicable to any installation scenario for door and window locks, such as vertical or horizontal installations, improving the lock's versatility. Furthermore, this door and window lock eliminates the traditional spring return structure, simplifying the overall structure and making assembly easier. It also produces virtually no noise when locking or unlocking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a door and window lock in one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the secondary handle in one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of a door and window lock installed on a door or window in one embodiment of the present invention.

[0021] Figure 4 This is an exploded view of the door and window lock and latch seat in one embodiment of the present invention.

[0022] Figure 5 This is an exploded view of the door and window lock in one embodiment of the present invention.

[0023] Figure 6 This is a side view of a door and window lock according to one embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the overall structure of the automatic fastening component in one embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the overall structure of the pressure cap in one embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the overall structure of the locking hook component in one embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the overall structure of the bayonet component in one embodiment of the present invention.

[0028] Figure 11This is a schematic diagram of the overall structure of the elastic element in one embodiment of the present invention. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] See Figures 1-11 This door and window lock includes a main body 1, a pressure cover assembly and a lock hook 10. The pressure cover assembly is fixed on the main body 1. The lock hook 10 is movably mounted on the pressure cover assembly. The pressure cover assembly is provided with an elastic pressure strip 18. The elastic pressure strip 18 may or may not press down on the lock hook 10. A buckle 19 is provided on the door and window frame. A first guide slope 20 is provided on the lock hook 10.

[0031] When the elastic strip 18 presses down on the lock hook 10 and the door / window 8 is closed, the lock hook 10 moves upward under the action of external force so that when the door / window lock moves in the first direction A, the lock hook 10 avoids the latch seat 19. After the lock hook 10 passes the latching part 21, it moves downward under the action of external force so that the lock hook 10 is latched on the latch seat 19, thereby locking the door / window 8. When the door / window 8 is closed, the lever 15 needs to be manually moved so that the lock hook 10 moves up and down.

[0032] When the elastic strip 18 does not press down on the lock hook 10 and the door and window 8 are closed, the door and window lock moves in the first direction A. The latch 19 acts on the first guide slope 20 to make the lock hook 10 move upward to avoid the latch 19. After the lock hook 10 passes the latch 19, it moves downward under the action of gravity so that the lock hook 10 is engaged with the latch 19, thereby locking the door and window 8. This structure does not require manual operation of the lever 15 when the door and window 8 are closed, thus achieving automatic closing of the door and window 8.

[0033] It also includes a latching component 3, and a pressure cap assembly including an automatic fastening component 2, which is fitted onto the main body 1. The upper end of the automatic fastening component 2 is provided with a first latch 4, and the latching component 3 is elastically movably disposed at the lower end of the automatic fastening component 2. The latching component 3 is provided with a second latch 5. The door / window 8 is provided with a mounting hole, with a first engaging part 6 at the upper end and a second engaging part 7 at the lower end. The first latch 4 is engaged with the first engaging part 6, and the second latch 5 is elastically engaged with the second engaging part 7, so that the door / window lock is fixed to the door / window 8. This fixing method can eliminate screws, simplify the installation process of the door / window lock, make the installation of the door / window lock more convenient, improve assembly efficiency, reduce costs, and avoid the problem of screws being easily lost. In addition, the elastic design of the latching component 3 can compensate for the manufacturing tolerances of the door / window, improving the compatibility of the door / window lock. This door / window lock can be fixed to the door body or the window body, and is particularly suitable for aluminum sliding doors.

[0034] The pressure cap assembly also includes a pressure cap 9, which is fixed to the back of the main body 1. A protrusion 11 is provided on the back of the main body 1. An automatic fastening component 2 is fitted onto the protrusion 11. A slot 12 is formed between the pressure cap 9 and the protrusion 11. A locking hook component 10 is movably disposed on the slot 12. A groove 13 is formed on the front of the main body 1 corresponding to the position of the protrusion 11. A through hole 14 communicating with the slot 12 is provided at the bottom of the groove 13. A lever 15 for moving the locking hook component 10 up and down is provided on the locking hook component 10. The lever 15 extends into the groove 13 through the through hole 14 to facilitate moving the lever 15 up and down.

[0035] A lock hook 16 is provided on one side of the lock hook 10, and openings 17 are provided on both sides of the pressure cover 9. The lock hook 16 extends out of the empty groove 12 through the openings 17. Depending on the position of the door and window lock, the lock hook 16 extends out of the empty groove 12 through the corresponding openings 17.

[0036] The latch 19 is provided with a latching part 21 for acting on the first guide slope 20, which is provided on the lock hook 16. When the lock hook 10 moves upward and the door and window lock moves in the first direction A, the lock hook 16 avoids the latching part 21. When the lock hook 16 passes over the latching part 21 and moves downward, the lock hook 16 latches onto the latching part 21, thereby locking the door and window 8.

[0037] When the door / window 8 is opened, the lever 15 needs to be moved upward to make the locking hook 10 move upward, thereby unlocking the door / window 8, and then the door / window 8 is moved in the opposite direction of the first direction A.

[0038] It also includes an elastic element 22, which is a spring. The elastic element 22 is disposed between the protrusion 11 and the latching element 3. The lower end of the latching element 3 is provided with a first protrusion 23, and the second latch 5 is located on one side of the first protrusion 23. The other side of the first protrusion 23 is provided with a second guide slope 24. When the door and window lock is installed, it moves in the second direction B. The second latching part 7 acts on the second guide slope 24 to make the latching element 3 move upward so that the first protrusion 23 avoids the second latching part 7. After the first protrusion 23 passes the second latching part 7, the latching element 3 moves downward under the elastic force of the elastic element 22 so that the second latch 5 is locked on the second latching part 7. When the latching element 3 moves downward, the first latch 4 is locked on the first latching part 6.

[0039] The automatic fastening component 2 has a second protrusion 38 at its upper end, and the first latch 4 is located on one side of the second protrusion 38.

[0040] The elastic member 22 has a first support 25 at the upper end and a second support 26 at the lower end. The protrusion 11 has an action slope 27 on one side. The bayonet 3 has an action part 28 at the lower end. The upper end of the elastic member 22 rests against the action slope 27 through the first support 25, and the lower end of the elastic member 22 rests against the action part 28 through the second support 26.

[0041] An active groove 39 is formed between the lower end of the automatic fastening component 2 and the lower end of the main body 1. The locking component 3 is movably mounted on the active groove 39, and the elastic component 22 is mounted inside the active groove 39.

[0042] The elastic pressure strip 18 is provided on the pressure cover 9. A through groove 37 is provided on the pressure cover 9 around the elastic pressure strip 18. The through groove 37 makes the elastic pressure strip 18 elastic, so that the elastic pressure strip 18 can be bent. When the elastic pressure strip 18 bends into the pressure cover 9, it presses against the locking hook 10, thereby creating a certain friction between the locking hook 10 and the elastic pressure strip 18. Therefore, the locking hook 10 cannot move downward automatically. When the elastic pressure strip 18 does not bend into the pressure cover 9, it does not press against the locking hook 10. The elastic pressure strip 18 can be bent into the pressure cover 9 manually. After bending, it can also be manually pushed out of the pressure cover 9 to reset so that the elastic pressure strip 18 does not press against the locking hook 10.

[0043] The automatic fastener 2 has notches 29 on both sides, and a groove 30 is formed between the notches 29 and the side wall of the protrusion 11. The pressure cover 9 has protrusions 31 on both sides, and the protrusions 31 are engaged in the grooves 30 to position the automatic fastener 2.

[0044] The automatic fastening component 2 is provided with a socket groove 32, and the pressure cover 9 is provided with a positioning groove 34. The automatic fastening component 2 is fitted onto the protrusion 11 through the socket groove 32. The bottom of the socket groove 32 is provided with an opening 33. The protrusion 11 passes through the opening 33 through the socket groove 32 and is inserted into the positioning groove 34, thereby positioning the pressure cover 9. The pressure cover 9 is welded and fixed to the main body 1. The automatic fastening component 2 is pressed between the main body 1 and the pressure cover 9, thereby fixing the automatic fastening component 2. Welding grooves 40 are provided on both sides of the pressure cover 9, and the pressure cover 9 is welded to the main body 1 through the welding grooves 40.

[0045] The upper end of the bayonet 3 is provided with a limiting protrusion 35, and the lower end of the opening 33 is provided with a limiting part 36. When the bayonet 3 moves downward, it is limited by the limiting protrusion 35 to the limiting part 36, so as to prevent the bayonet 3 from falling out of the movable groove 38 when it moves downward.

[0046] The door and window locks are respectively installed on both sides of door and window 8; or, the door and window locks are installed on one side of door and window 8; such as Figure 2As shown, the door and window lock can be without the pressure cap 9 and the lock hook 10. In this case, the door and window lock is a secondary handle, which is only used to pull the door and window 8 and does not have the function of locking the door and window 8. Generally, the door and window locks are respectively set on both sides of the door and window 8. The door and window lock with the pressure cap 9 and the lock hook 10 and the secondary handle are respectively located on both sides of the door and window 8, forming a double-sided door and window lock. It is particularly suitable for sliding doors. The door and window lock with the pressure cap 9 and the lock hook 10 is located inside, and the secondary handle is located outside. In addition, the door and window lock with the pressure cap 9 and the lock hook 10 and the secondary handle can also be used alone. When the door and window lock is a secondary handle, the bottom of the groove 13 does not have a through hole 14.

[0047] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door and window lock, comprising a main body (1), characterized in that: It also includes a pressure cap assembly and a locking hook (10). The pressure cap assembly is fixed on the main body (1). The locking hook (10) is movably mounted on the pressure cap assembly. The pressure cap assembly is provided with an elastic pressure strip (18). The elastic pressure strip (18) presses down on or does not press down on the locking hook (10). A buckle (19) is provided on the door and window frame. A first guide slope (20) is provided on the locking hook (10). When the elastic strip (18) presses down on the lock hook (10) and the door and window (8) are closed, the lock hook (10) moves upward under the action of external force so that when the door and window lock moves in the first direction (A), the lock hook (10) avoids the latch seat (19). After the lock hook (10) passes the latching part (21), it moves downward under the action of external force so that the lock hook (10) latches onto the latch seat (19) and locks the door and window (8). When the elastic strip (18) does not press down on the lock hook (10) and the door and window (8) are closed, the door and window lock moves in the first direction (A), and the latch (19) acts on the first guide slope (20) to make the lock hook (10) move upward to avoid the latch (19). After the lock hook (10) passes the latch (19), it moves downward under the action of gravity so that the lock hook (10) is engaged on the latch (19) and thus locks the door and window (8).

2. The door and window lock according to claim 1, characterized in that: It also includes a latching component (3), and the cover assembly includes an automatic fastening component (2). The automatic fastening component (2) is fitted onto the main body (1). One end of the automatic fastening component (2) is provided with a first latch (4). The latching component (3) is elastically and movably disposed at the other end of the automatic fastening component (2). The latching component (3) is provided with a second latch (5). The door and window (8) is provided with an installation hole. One end of the installation hole is provided with a first locking part (6) and the other end is provided with a second locking part (7). The first latch (4) is locked onto the first locking part (6), and the second latch (5) is elastically locked onto the second locking part (7) so that the door and window lock is fixed on the door and window (8).

3. The door and window lock according to claim 2, characterized in that: The pressure cap assembly also includes a pressure cap (9), which is fixed to the back of the main body (1). A protrusion (11) is provided on the back of the main body (1). An automatic fastening component (2) is fitted on the protrusion (11). A slot (12) is formed between the pressure cap (9) and the protrusion (11). A locking hook component (10) is movably disposed on the slot (12). A groove (13) is formed on the front of the main body (1) corresponding to the position of the protrusion (11). A through hole (14) is provided on the groove (13) to connect the slot (12). A lever (15) is provided on the locking hook component (10) for moving the locking hook component (10) up and down. The lever (15) extends into the groove (13) through the through hole (14). A locking hook (16) is provided on one side of the locking hook component (10). An opening (17) is provided on both sides of the pressure cap (9). The locking hook (16) extends out of the slot (12) through the opening (17).

4. The door and window lock according to claim 3, characterized in that: The latch (19) is provided with a latching part (21) for acting on the first guide slope (20), and the first guide slope (20) is provided on the lock hook (16). When the lock hook (10) moves upward and the door and window lock moves in the first direction (A), the lock hook (16) avoids the latching part (21). When the lock hook (16) passes over the latching part (21) and moves downward, the lock hook (16) latches onto the latching part (21) and locks the door and window (8).

5. The door and window lock according to claim 4, characterized in that: It also includes an elastic element (22), which is disposed between the protrusion (11) and the latching element (3). One end of the latching element (3) is provided with a first protrusion (23), and the second latch (5) is located on one side of the first protrusion (23). The other side of the first protrusion (23) is provided with a second guide slope (24). When the door and window lock is installed, it moves in the second direction (B). The second latching part (7) acts on the second guide slope (24) to make the latching element (3) move upward so that the first protrusion (23) avoids the second latching part (7). After the first protrusion (23) passes the second latching part (7), the latching element (3) moves downward under the elastic force of the elastic element (22) so that the second latch (5) is locked on the second latching part (7).

6. The door and window lock according to claim 5, characterized in that: One end of the elastic member (22) is provided with a first foot (25) and the other end is provided with a second foot (26). An action slope (27) is provided on one side of the protrusion (11). One end of the latch member (3) is provided with an action part (28). One end of the elastic member (22) rests against the action slope (27) through the first foot (25), and the other end of the elastic member (22) rests against the action part (28) through the second foot (26).

7. The door and window lock according to claim 3, characterized in that: The elastic strip (18) is set on the pressure cover (9). The pressure cover (9) has a through groove (37) on the periphery of the elastic strip (18) so that the elastic strip (18) can be bent. When the elastic strip (18) bends into the pressure cover (9), it presses against the locking hook (10). When the elastic strip (18) does not bend into the pressure cover (9), it does not press against the locking hook (10).

8. The door and window lock according to claim 6, characterized in that: The automatic fastening component (2) has notches (29) on both sides, and a groove (30) is formed between the notches (29) and the side wall of the protrusion (11). The pressure cover (9) has protrusions (31) on both sides, and the protrusions (31) are engaged in the groove (30). The automatic fastening component (2) has a socket groove (32), and the pressure cover (9) has a positioning groove (34). The automatic fastening component (2) is fitted onto the protrusion (11) through the socket groove (32). The bottom of the socket groove (32) has an opening (33). The protrusion (11) passes through the opening (33) through the socket groove (32) and is inserted into the positioning groove (34). The pressure cover (9) is welded and fixed to the main body (1). The automatic fastening component (2) is pressed between the main body (1) and the pressure cover (9).

9. The door and window lock according to claim 8, characterized in that: The other end of the bayonet (3) is provided with a limiting protrusion (35), and the opening (33) is provided with a limiting part (36). When the bayonet (3) moves downward, it is limited to the limiting part (36) by the limiting protrusion (35).

10. The door and window lock according to any one of claims 1-9, characterized in that: The door and window locks are respectively set on both sides of the door and window (8); or, the door and window locks are set on one side of the door and window (8).

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