Sliding window spring lock with child lock

By incorporating hooks and limit locks into the sliding window latches, the problems of loose installation and accidental operation by children are solved, achieving tight fixation and safety protection, thus improving window security.

CN224093165UActive Publication Date: 2026-04-07FOSHAN MAITOS DOOR & WINDOW TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing sliding window latches are prone to loosening after installation, leaving gaps, and children can easily accidentally open them, posing a safety hazard.

Method used

A sliding window latch with a child lock was designed. It achieves a tight fit by setting hooks and slots on the lock box, and introduces a limit lock and support spring structure. It can only be opened by pressing and turning to prevent children from accidentally operating it.

Benefits of technology

It significantly reduces gaps after installation, improves the stability of the latch, prevents children from accidentally opening the window, and enhances window safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224093165U_ABST
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Abstract

According to the sliding window spring lock with the child lock, a lock box is provided with an installation hole, a clamping hook is arranged on the other side, located on the installation hole, of the lock box, the lock box is fixedly installed through the clamping hook and the installation hole, and the clamping hook is provided with a clamping groove, so that when a fixed plug or a movable plug cannot be used, the spring lock can be tightly matched with a sliding window sectional material, and the child lock can not be used. A limiting pressing lock is inserted into the lock box, a supporting spring is arranged between the limiting pressing lock and the lock box in a penetrating mode, one end of the limiting pressing lock penetrates through the lock box and abuts against the lock cylinder, the limiting pressing lock is provided with a limiting part, the lock box is provided with a sliding groove, and the limiting pressing lock is provided with a sliding groove. A limiting groove corresponding to the limiting part is formed in the position, located at the tail end of the sliding groove, of the lock box, the limiting pressing lock rotates after being pressed to limit the lock cylinder, the limiting pressing lock can only be opened through pressing and rotating actions, the function of a child lock is achieved, the risk that a child opens the window accidentally is avoided, and the safety of the window is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of hardware door and window accessories, and more specifically, to a sliding window latch with a child lock. Background Technology

[0002] Currently, fully concealed thermally broken sliding windows are a popular new type of window for enclosing balconies. They offer several advantages: when closed, the window sash is completely hidden within the frame, providing a large view; when open, they offer greater ventilation than casement windows, allowing for flexible ventilation positions; the single-sash double-track + double-row roller design ensures smoother sliding than ordinary sliding windows; the high and low track + flat groove design guarantees smooth drainage and better cleaning of track dust; they can be paired with balcony accessories such as large-view handrails, LED strips, and clothes racks; and high-transparency screens can be hung externally to prevent mosquitoes and other insects.

[0003] However, existing sliding windows use fixed or movable plugs to install the latches onto the window profiles. This installation method often leaves gaps between the latch and the window profile after installation, resulting in insufficient tightness or even loosening of the latch. Furthermore, existing latches are unlocked by moving a handle, which can easily lead to children accidentally moving the handle and opening the door or window, posing a risk of children falling out and endangering their safety. Children frequently open doors and windows unsupervised and climb out, causing accidents. Therefore, improving the safety performance of latches is necessary. Utility Model Content

[0004] This utility model improves upon the existing technology to address the aforementioned shortcomings, providing a sliding window latch with a child lock. The technical solution is as follows:

[0005] A sliding window latch with a child lock includes a lock box, a handle, and a lock cylinder. A lock hole is formed on one side of the lock box corresponding to the lock cylinder. The middle of the lock box is connected to the handle via a pivot. The handle extends into the lock box and has an actuating block. A push plate is connected between the actuating block and the lock box on one side of the lock cylinder, with one end of the push plate abutting against the lock cylinder. The lock box has mounting holes on one side of the lock hole, and a [missing information - likely a device or mechanism] on the other side of the mounting holes. The lock box is fixedly installed by a hook and a mounting hole. The hook has a groove that matches the sliding window profile. A limit button is inserted into the lock box. A support spring passes between the limit button and the lock box. One end of the limit button extends through the lock box and abuts against the lock cylinder. The limit button extends and has a limit part. The lock box has a sliding groove along the circumference of the limit button. The lock box has a limit groove at the end of the sliding groove corresponding to the limit part.

[0006] Preferably, the push plate has an L-shaped structure, and a return spring is connected to one side of the lock box.

[0007] Preferably, the groove has a fan-shaped structure.

[0008] Preferably, a fixed plug is provided at one end of the lock box, and a movable plug is movably embedded at the other end, with a return spring provided between the movable plug and the lock box.

[0009] Preferably, the lock cylinder includes a first latch piece and a second latch piece, both of which are disposed on the opposite side of the latch and are movably connected to the lock box. The first latch piece and the second latch piece are connected to each other by a tension spring, and one end of the first latch piece abuts against the second latch piece.

[0010] Preferably, the lock cylinder is provided in two sets, which are respectively located at both ends of the lock box.

[0011] Preferably, the lock box has a receiving groove corresponding to the lock cylinder and the push plate, and a base plate is connected to one side of the lock box located in the receiving groove.

[0012] Preferably, the lock box has a lock groove in the middle to accommodate the handle, so that the handle is located in the middle of the lock groove.

[0013] Preferably, the limiting button is disposed within the lock groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By opening an installation hole on the lock box and setting a hook on the other side, this utility model enables the touch lock to fit tightly with the sliding window profile when the fixed or movable plug cannot be used. The slot design on the hook allows the touch lock to be firmly fixed to the profile, significantly reducing gaps after installation. This utility model introduces a structure of a limit button lock and a support spring, so that the limit button lock rotates after being pressed to limit the lock cylinder. The limit button lock can only be opened by pressing and rotating, which is a difficult obstacle for children to overcome, realizing the function of a child lock, avoiding the risk of children accidentally opening it, and significantly improving the safety of the window. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a rear view of the present invention;

[0018] Figure 3 This is a diagram of the internal structure of the present invention;

[0019] Figure 4 This is a top view of the present invention;

[0020] Figure 5 A 3D view of the limit switch;

[0021] Includes: 1. Lock box; 2. Handle; 3. Lock cylinder; 4. Lock hole; 5. Rotating shaft; 6. Actuating block; 7. Push plate; 8. Mounting hole; 9. Hook; 10. Slot; 11. Limiting push lock; 12. Support spring; 13. Limiting part; 14. Slide groove; 15. Limiting groove; 16. Return spring; 17. Fixed plug; 18. Movable plug; 19. Return spring; 20. First locking piece; 21. Second locking piece; 22. Tension spring; 23. Receiving groove; 24. Base plate; 25. Lock groove. Detailed Implementation

[0022] 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.

[0023] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings, as follows:

[0024] A sliding window latch with a child lock includes a lock box 1, a handle 2, and a lock cylinder 3. Two sets of lock cylinders 3 are located at opposite ends of the lock box 1. A lock hole 4 is provided on one side of the lock box 1 corresponding to the lock cylinder 3. The middle of the lock box 1 is connected to the handle 2 via a pivot 5. The handle 2 extends inwards towards the lock box and has a toggle block 6. A push plate 7 is connected between the toggle block 6 and the lock box 1 on one side of the lock cylinder 3, with one end of the push plate 7 abutting against the lock cylinder 3. The lock box 1 has mounting holes 8 on one side of the lock hole 4 and hooks 9 on the other side of the lock box 1. The lock box 1 is fixedly installed via the hooks 9 and mounting holes 8. The hooks 9 have grooves 10 that mate with the sliding window profile. By providing mounting holes 8 on the lock box 1 and hooks 9 on the other side, the latch can tightly engage with the sliding window profile when the fixed plug 17 or movable plug 18 is unusable. The grooves 10 on the hooks 9 further enhance the locking mechanism. The child lock can be firmly fixed to the profile, significantly reducing gaps after installation. The lock box 1 is inserted with a limit button 11, and a support spring 12 passes between the limit button 11 and the lock box 1. One end of the limit button 11 extends through the lock box 1 and abuts against the lock cylinder 3. The limit button 11 extends with a limit part 13. The lock box 1 has a sliding groove 14 along the circumference of the limit button 11. The sliding groove 14 has a fan-shaped structure, which allows the limit part 13 to rotate and get stuck in the limit groove 15. The lock box 1 has a limit groove 15 at the end of the sliding groove 14 corresponding to the limit part 13. By introducing the structure of the limit button 11 and the support spring 12, the limit button 11 can be pressed and rotated to limit the lock cylinder 3. Opening the limit button 11 requires pressing and rotating actions, which is an insurmountable obstacle for children. This realizes the function of a child lock, avoids the risk of children accidentally opening it, and significantly improves the safety of the window.

[0025] Preferably, the push plate 7 has an L-shaped structure, and a return spring 16 is connected to one side of the lock box 1. The L-shaped push plate 7 can make one end of the push plate 7 abut against the toggle block 6 and the other end abut against the lock cylinder 3.

[0026] Preferably, a fixed plug 17 is provided at one end of the lock box 1, and a movable plug 18 is movably embedded at the other end. A return spring 19 is provided between the movable plug 18 and the lock box 1. The bump lock can be quickly installed through the fixed plug 17 and the movable plug 18.

[0027] Preferably, the lock cylinder 3 includes a first latch piece 20 and a second latch piece 21. The first latch piece 20 and the second latch piece 21 are both located on opposite sides of the handle 2 and are movably connected to the lock box 1. The first latch piece 20 and the second latch piece 21 are connected to each other by a tension spring 22. One end of the first latch piece 20 abuts against the second latch piece 21. The sliding window is locked by engaging the latch hooks of the first latch piece 20 and the second latch piece 21.

[0028] Preferably, the lock box 1 has a receiving groove 23 corresponding to the lock cylinder 3 and the push plate 7. The lock box 1 is connected to a base plate 24 on one side of the receiving groove 23. The base plate 24 can not only limit the lock cylinder 3 and the push plate 7, but also cover the internal structure of the bump lock, making the bump lock more aesthetically pleasing.

[0029] Preferably, the lock box 1 has a lock groove 25 in the middle to accommodate the handle 2, so that the handle 2 is located in the middle of the lock groove 25 and the limiting lock 11 is located in the lock groove 25.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding window latch with a child lock, comprising a lock box, a handle, and a lock cylinder, wherein a lock hole is provided on one side of the lock box corresponding to the lock cylinder, the middle part of the lock box is connected to the handle via a pivot, the handle extends toward the interior of the lock box and is provided with an actuating block, a pushing plate is connected between the actuating block and the lock box on one side of the lock cylinder, one end of the pushing plate abutting against the lock cylinder, characterized in that, The lock box has mounting holes on one side of the lock hole, and hooks on the other side of the lock box. The lock box is fixedly installed in the mounting hole by the hooks. The hooks have slots that mate with the sliding window profile. A limit lock is inserted into the lock box. A support spring passes between the limit lock and the lock box. One end of the limit lock extends through the lock box and abuts against the lock cylinder. The limit lock has a limit part extending outward. The lock box has a sliding groove along the circumference of the limit lock. The lock box has a limit groove at the end of the sliding groove corresponding to the limit part.

2. A sliding window latch with a child lock according to claim 1, characterized in that, The push plate has an L-shaped structure, and a return spring is connected to each of its sides located in the lock box.

3. A sliding window latch with a child lock according to claim 1, characterized in that, The groove has a fan-shaped structure.

4. A sliding window latch with a child lock according to claim 1, characterized in that, One end of the lock box is provided with a fixed plug, and the other end is movably fitted with a movable plug. A return spring is provided between the movable plug and the lock box.

5. A sliding window latch with a child lock according to claim 1, characterized in that, The lock cylinder includes a first latch piece and a second latch piece. The first latch piece and the second latch piece are both located on the opposite side of the handle and are movably connected to the lock box. The first latch piece and the second latch piece are connected to each other by a tension spring, and one end of the first latch piece abuts against the second latch piece.

6. A sliding window latch with a child lock according to claim 1 or 5, characterized in that, The lock cylinder is provided in two sets, which are respectively located at both ends of the lock box.

7. A sliding window latch with a child lock according to claim 1, characterized in that, The lock box has a receiving groove corresponding to the lock cylinder and the push plate, and a base plate is connected to one side of the lock box located in the receiving groove.

8. A sliding window latch with a child lock according to claim 1, characterized in that, The lock box has a lock groove in the middle to accommodate the handle, so that the handle is located in the middle of the lock groove.

9. A sliding window latch with a child lock according to claim 8, characterized in that, The limiting button is located within the lock groove.