Novel screen window lock

Abstract

The utility model discloses a novel screen window lock which comprises a lock shell installed on the lower half portion of a screen window frame. The lock cylinder assembly is installed in the middle of the lock shell and used for locking the screen window. The locking mechanism is mounted on the lock cylinder assembly and used for limiting the lock cylinder assembly; the screen window lock is reasonable in structure, the possibility that a child opens a screen window can be reduced, the using safety of the screen window lock is improved, and the using requirements can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of screen window locks, in particular to a novel screen window lock. Background Art

[0002] The screen lock is used to lock the screen frame with the screen mesh to the window frame. The screen frame can be removed from the window frame by opening the screen lock. Currently, existing screen locks often have some shortcomings: 1. The screen lock is difficult to open and close, which makes the removal and installation of the screen frame inconvenient and inefficient; 2. The structure is complex and the manufacturing cost is relatively high.

[0003] In order to solve the above problems, a utility model patent with authorization announcement number CN211115310U discloses a screen window lock, which has the characteristics of easy opening and closing operation, simple structure and low manufacturing cost.

[0004] However, the screen window lock does not have a locking function, and children may open the screen window, which poses a certain safety hazard, reduces the safety of using the screen window lock, and cannot well meet the use requirements. Utility Model Content

[0005] The purpose of the present invention is to provide a novel screen window lock to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A new screen window lock comprises: a lock shell installed in the lower half of the screen window frame; a lock core assembly installed in the middle of the lock shell and used to lock the screen window; a locking mechanism installed on the lock core assembly and used to limit the lock core assembly; lock tongues are also installed on the left and right sides of the lock core assembly through a connecting mechanism.

[0008] As a preferred solution, the lock core assembly includes a lock seat installed in the lock housing, a pair of lock rods are rotatably inserted on the lock seat, and a pair of toggle slides are slidably installed on the left and right sides of the lock housing. The side walls of the toggle slides are provided with limiting grooves corresponding to the positions of the lock rods, and the ends of the lock rods are inserted in the corresponding limiting grooves; a reset assembly is also installed on the lock rod.

[0009] As a preferred solution, the reset assembly includes a reset spring sleeved on the lock rod, wherein a pair of reset plates are installed on the left and right sides of the upper lock rod, and the two ends of the reset spring are respectively in contact with the corresponding side of the toggle slide and the reset plate;

[0010] The two ends of the return spring on the other locking rod are respectively connected with the corresponding toggle slide seat and the corresponding side of the lock seat.

[0011] As a preferred solution, a limiting protrusion is further extended from the rear side of the locking rod, and a limiting slot is provided at a position of the limiting groove corresponding to the position of the limiting protrusion.

[0012] As a preferred solution, a positioning plate is also installed on the upper side of the locking rod, and the positioning plate is fixedly connected to the lock seat. A locking wheel is also installed in the middle position of the locking rod, and several positioning grooves are distributed on the left side of the locking wheel. A pair of hemispherical positioning protrusions are also installed on the positioning plate, and the positioning protrusions are inserted into the positioning grooves.

[0013] As a preferred solution, the connecting mechanism includes a connecting slide 1 and a connecting slide 2 which are slidably installed in the lock shell. Connecting grooves are opened on opposite sides of the connecting slide 1 and the connecting slide 2. The end of the lock tongue is clamped in the connecting groove, and the end of the connecting slide 2 is fixedly connected to the toggle slide.

[0014] As a preferred solution, the locking mechanism includes a lock disk rotatably mounted on the front side of the lock seat, a lock key is mounted on the lock disk, a lock groove is provided on the lock wheel, and a rotating handle is also mounted on the lock disk.

[0015] As a preferred solution, a guide mechanism is further provided between the toggle slide and the lock shell, the guide mechanism comprising a guide groove opened at the lower end of the lock shell, a guide hole opened at the lower end of the toggle slide, a guide pin slidably inserted in the guide groove, and the end of the guide pin is inserted into the guide hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the screen window is locked by the lock core assembly, and then, the lock wheel is rotated to drive the lock rod to rotate, so that the limit protrusion and the limit slot are staggered, and then, the lock disk is driven to rotate by rotating the handle, and the lock key on the lock disk is inserted into the lock slot on the lock wheel, limiting the rotation of the lock wheel, thereby completing the limitation of the lock core assembly, preventing the sliding seats on both sides from driving the lock tongue to separate from the screen window, improving the safety of the screen window lock, and reducing the possibility of children opening the screen window. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a new type of screen window lock installed on a screen window frame;

[0018] Figure 2 It is a schematic diagram of the overall three-dimensional structure of a new type of screen window lock;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure behind the hidden lock shell of a new type of screen window lock;

[0020] Figure 4 This is a three-dimensional structural diagram of the lock core assembly of a new type of screen window lock;

[0021] Figure 5This is a schematic diagram of the three-dimensional structure of a new type of screen window lock at the position of the lock rod;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of a new type of screen window lock at the lock seat position;

[0023] Figure 7 This is a schematic diagram of the explosion structure at the lock tongue position of a new type of screen window lock.

[0024] In the figure: 1. Screen frame; 11. Lock housing; 12. Lock cover; 2. Lock core assembly; 20. Lock seat; 21. Positioning plate; 211. Positioning protrusion; 22. Lock wheel; 221. Positioning slot; 23. Lock rod; 231. Limiting protrusion; 232. Limiting slot; 233. Limiting slot; 24. Reset plate; 25. Reset spring; 26. Lock tongue; 27. Toggle slide; 271. Toggle slot; 3. Connecting mechanism; 31. Connecting slide 1; 32. Connecting slide 2; 33. Connecting slot; 4. Guide mechanism; 41. Guide hole; 42. Guide pin; 43. Guide slot; 5. Locking mechanism; 51. Lock disk; 52. Lock key; 53. Turning handle DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example: See Figures 1 to 7 A new type of screen window lock includes: a lock shell 11 installed in the lower half of the screen window frame 1; a lock core assembly 2 installed in the middle position of the lock shell 11, used to lock the screen window; a locking mechanism 5 installed on the lock core assembly 2, used to limit the lock core assembly 2; lock tongues 26 are also installed on the left and right sides of the lock core assembly 2 through a connecting mechanism 3. In this embodiment, a lock cover 12 is installed on the front side of the lock shell 11 at a position corresponding to the lock core assembly 2.

[0027] The working principle of the present invention is as follows: when in use, the screen window is positioned by the lock core assembly 2, and then the lock core assembly 2 is positioned by the locking mechanism 5 to prevent the lock core assembly 2 from moving, which can increase the difficulty for children to open the screen window and increase the safety of the screen window lock, thereby better meeting the use requirements.

[0028] As a further solution, the lock core assembly 2 includes a lock seat 20 installed in the lock housing 11, and a pair of lock rods 23 are rotatably inserted on the lock seat 20. A pair of toggle slides 27 are also slidably installed on the left and right sides of the lock housing 11. The side walls of the toggle slides 27 are provided with limiting grooves 233 corresponding to the positions of the lock rods 23, and the ends of the lock rods 23 are inserted in the corresponding limiting grooves 233; a reset assembly is also installed on the lock rod 23; in this embodiment, a toggle groove 271 is provided on the toggle slide 27.

[0029] The reset assembly includes a reset spring 25 sleeved on the lock rod 23, wherein a pair of reset plates 24 are further installed on the left and right sides of the upper lock rod 23, and the two ends of the reset spring 25 are respectively in contact with the corresponding side of the toggle slide 27 and the reset plate 24; the two ends of the reset spring 25 on the other lock rod 23 are respectively in contact with the corresponding side of the toggle slide 27 and the lock base 20. A limiting protrusion 231 extends from the rear side of the lock rod 23, and a limiting slot 232 is provided at the position of the limiting groove 233 corresponding to the position of the limiting protrusion 231;

[0030] The upper locking rod 23 is also provided with a positioning piece 21, which is fixedly connected to the lock base 20. A locking wheel 22 is also installed in the middle of the locking rod 23. A plurality of positioning grooves 221 are distributed on the left side of the locking wheel 22. A pair of hemispherical positioning protrusions 211 are also installed on the positioning piece 21, and the positioning protrusions 211 are inserted into the positioning grooves 221. The locking wheel 22 can be positioned by the positioning protrusions 211 and the positioning grooves 221.

[0031] The working principle of the lock core assembly 2 is: when in use, the lock wheel 22 is rotated, and the lock rod 23 is driven to rotate by the lock wheel 22, so that the limiting protrusion 231 is rotated to the position of the limiting slot 232, and then, the toggle slides 27 on both sides are pushed close to each other, so that the lock rod 23 is inserted into the limiting slot 233, at this time the return spring 25 is compressed, and then, the screen window can be closed, and then, the toggle slide 27 is released, and the return spring 25 pushes the toggle slides 27 on both sides to move, so that the lock tongue 26 is inserted into the screen window, and the screen window can be locked.

[0032] As a further solution, the connecting mechanism 3 includes a connecting slide 1 31 and a connecting slide 2 32 slidably installed in the lock housing 11, and a connecting groove 33 is opened on the opposite sides of the connecting slide 1 31 and the connecting slide 2 32. The end of the lock tongue 26 is clamped in the connecting groove 33, and the end of the connecting slide 2 32 is fixedly connected to the toggle slide 27.

[0033] The working principle of the connecting mechanism 3 is: first, the end of the lock tongue 26 is inserted into the connecting groove 33, then the connecting slide 1 31 and the connecting slide 2 32 are fixed, and then the connecting slide 2 32 and the toggle slide 27 are fixed to complete the connection work.

[0034] As a further solution, the locking mechanism 5 includes a lock disk 51 rotatably mounted on the front side of the lock seat 20, a lock key 52 is mounted on the lock disk 51, a lock groove is provided on the lock wheel 22, and a rotating handle 53 is also mounted on the lock disk 51.

[0035] The working principle of the locking mechanism 5 is as follows: when the screen window is closed, the screen window is locked by the lock core assembly 2, and then the lock wheel 22 is rotated to drive the lock rod 23 to rotate, so that the limiting protrusion 231 and the limiting slot 232 are staggered. Subsequently, the lock disk 51 is driven to rotate by rotating the handle 53, and the lock key 52 on the lock disk 51 is inserted into the lock slot on the lock wheel 22, limiting the rotation of the lock wheel 22, thereby completing the limiting of the lock core assembly 2, preventing the sliding seats 27 on both sides from driving the lock tongue 26 to separate from the screen window, thereby improving the safety of the screen window lock and reducing the possibility of children opening the screen window.

[0036] As a further solution, a guide mechanism 4 is further provided between the toggle slide 27 and the lock shell 11, and the guide mechanism 4 includes a guide groove 43 opened at the lower end of the lock shell, and a guide hole 41 is opened at the lower end of the toggle slide 27. A guide pin 42 is slidably inserted in the guide groove 43, and the end of the guide pin 42 is inserted into the guide hole 41.

[0037] By providing the guide mechanism 4 , the stability of the movement of the toggle slide 27 can be improved. At the same time, the guide groove 43 cooperates with the guide pin 42 to control the movement distance of the toggle slide 27 .

[0038] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention, and cannot be understood as a limitation on the present invention.

Claims

1. A new type of screen window lock, characterized in that: include: A lock housing (11) mounted on the lower half of the screen window frame (1); A lock core assembly (2) is installed in the middle of the lock housing (11) and is used to lock the screen window; A locking mechanism (5) is mounted on the lock core assembly (2) and is used to limit the lock core assembly (2); Lock tongues (26) are also installed on the left and right sides of the lock core assembly (2) via a connecting mechanism (3).

2. A new screen window lock according to claim 1, characterized in that: The lock core assembly (2) includes a lock seat (20) installed in a lock housing (11), a pair of lock rods (23) are rotatably inserted on the lock seat (20), and a pair of toggle slides (27) are slidably installed on the left and right sides of the lock housing (11), and the side walls of the toggle slides (27) are provided with limiting grooves (233) corresponding to the positions of the lock rods (23), and the ends of the lock rods (23) are inserted in the corresponding limiting grooves (233); a reset assembly is also installed on the lock rod (23).

3. A new screen window lock according to claim 2, characterized in that: The reset assembly includes a reset spring (25) sleeved on the lock rod (23), wherein a pair of reset plates (24) are installed on the left and right sides of the upper lock rod (23), and the two ends of the reset spring (25) are respectively connected to the corresponding side of the toggle slide (27) and the reset plate (24); The two ends of the return spring (25) on the other locking rod (23) are respectively connected with the corresponding toggle slide (27) and the corresponding side of the lock seat (20).

4. A new screen window lock according to claim 3, characterized in that: A limiting protrusion (231) is further extended from the rear side of the locking rod (23), and a limiting slot (232) is provided at a position of the limiting groove (233) corresponding to the position of the limiting protrusion (231).

5. A new screen window lock according to claim 4, characterized in that: The locking rod (23) on the upper side is also provided with a positioning piece (21), and the positioning piece (21) is fixedly connected to the lock seat (20). A locking wheel (22) is also installed in the middle position of the locking rod (23), and a plurality of positioning grooves (221) are distributed on the left side of the locking wheel (22). A pair of hemispherical positioning protrusions (211) are also installed on the positioning piece (21), and the positioning protrusions (211) are inserted into the positioning grooves (221).

6. A new screen window lock according to claim 5, characterized in that: The connecting mechanism (3) comprises a connecting slide seat 1 (31) and a connecting slide seat 2 (32) which are slidably mounted in the lock housing (11); a connecting groove (33) is provided on opposite sides of the connecting slide seat 1 (31) and the connecting slide seat 2 (32); an end portion of the lock tongue (26) is clamped in the connecting groove (33); and an end portion of the connecting slide seat 2 (32) is fixedly connected to the toggle slide seat (27).

7. A new screen window lock according to claim 6, characterized in that: The locking mechanism (5) comprises a lock disk (51) rotatably mounted on the front side of the lock seat (20), a lock key (52) being mounted on the lock disk (51), a lock groove being formed on the lock wheel (22), and a rotating handle (53) being mounted on the lock disk (51).

8. A novel screen window lock according to claim 7, characterized in that: A guide mechanism (4) is further provided between the toggle slide (27) and the lock housing (11), the guide mechanism (4) comprising a guide groove (43) provided at the lower end of the lock housing, a guide hole (41) provided at the lower end of the toggle slide (27), a guide pin (42) slidably inserted into the guide groove (43), and an end portion of the guide pin (42) inserted into the guide hole (41).

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