Automatic locking double-sided spring lock capable of being installed quickly
By designing a double-sided interlocking structure for both the interior and exterior, and employing riveting and spring engagement, the sliding doors and windows were made quick to install and automatically locked, solving the problems of complex installation and lack of automatic locking in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
The installation process of the latches on sliding doors and windows currently on the market is complicated and lacks automatic locking function.
A double-sided latch was designed, including an indoor side and an outdoor side structure. It can be quickly installed by riveting, pressing the bulge and spring, and automatically locks by the cooperation of the internal hexagonal fastener and the decorative cover.
It achieves a simple structure, convenient installation, and automatic locking effect, and the movement process is smooth.
Smart Images

Figure CN224093133U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building door and window accessories, particularly relates to a quick installation automatic locking double-sided latch. BACKGROUND
[0002] The latch is a necessary part of indoor windows, and its structure and design specifications directly affect the comfort, safety and aesthetics of use. The existing market sliding doors and windows all adopt bolt punching or installation piece compression profile installation, and the application designs a double-sided latch convenient to install aiming at the problems in the market. SUMMARY
[0003] The utility model discloses in order to make up for the deficiency in the prior art, provide a kind of quick installation automatic locking single-sided latch, including double-sided latch indoor side and double-sided latch outdoor side, it is characterized by:
[0004] The double-sided latch indoor side includes an outer frame, a first shaft is riveted and fixed to the upper part of the outer frame, the movable block is penetrated into the upper end of the outer frame after being matched with a steel ball and a first spring, and a second spring is in contact with the first shaft;A plastic inner frame is provided below the first shaft, a hook lock is fixedly connected to the upper end of the plastic inner frame, and the hook lock penetrates through a lock seat;The bottom of the plastic inner frame is connected to a fixed block by a second spring, and the fixed block is fixedly connected to the lower end of the outer frame;
[0005] The double-sided latch outdoor side includes a handle outer frame, a plastic inner insert is fixed in the handle outer frame by a second shaft, a third shaft is installed below the handle outer frame, and a handle movable block is movably connected to the third shaft by a third spring.
[0006] Further, in order to better realize the utility model, the upper end of the plastic inner frame is fixedly connected to a moving block by a decorative cover, and the moving block is fixedly connected to the hook lock by a inner hexagon fastener.
[0007] Further, in order to better realize the utility model, the height H of the lock hook is adjusted according to the profile specifications.
[0008] Further, in order to better realize the utility model, the width K and the height H of the lock seat are adapted to different profiles.
[0009] Further, in order to better realize the utility model, the decorative cover is connected to the plastic inner frame by a self-provided plastic buckle.
[0010] Further, in order to better realize the utility model, the inner hexagon fastener is used to adjust the length of the lock hook.
[0011] Further, in order to better realize the utility model, the movable block, the first spring and the steel ball are matched to realize smooth movement.
[0012] Further, in order to better realize the utility model, the second spring, the plastic inner frame and the moving block cooperate to realize automatic locking.
[0013] Further, in order to better realize the utility model, the decorative cover, the internal hexagonal fastening nail and the plastic inner frame cooperate to realize hidden adjustment.
[0014] Further, in order to better realize the utility model, the notch of the handrail outer frame cooperates with the indoor side moving block, and the profile range is wider.
[0015] The utility model has the advantages of:
[0016] The whole design is simple in structure, convenient to install and disassemble, capable of automatic locking and smooth in movement. DRAWINGS
[0017] Figure 1 It is the three-dimensional structure schematic view of the embodiment 1 of the utility model;
[0018] Figure 2 It is the three-dimensional structure schematic view of the embodiment 2 of the utility model;
[0019] Figure 3 It is the three-dimensional structure schematic view of the indoor side of the double-sided latch;
[0020] Figure 4 It is the three-dimensional structure explosion drawing of the indoor side of the double-sided latch;
[0021] Figure 5 It is the three-dimensional structure schematic view of the outdoor side of the double-sided latch;
[0022] Figure 6 It is the front view of the lock hook of the utility model;
[0023] Figure 7 It is the side view of the lock seat of the utility model.
[0024] In the drawing,
[0025] 1, movable block, 2, first spring, 3, first shaft, 4, fixed block, 5, outer frame, 6, second spring, 7, plastic inner frame, 8, moving block, 9, lock hook, 10, lock seat, 11, steel ball, 12, decorative cover, 13, internal hexagonal fastening nail, 14, handrail outer frame, 15, plastic inner insert, 16, second shaft, 17, third shaft, 18, third spring, 19, handrail movable block, 20, indoor side of double-sided latch, 21, outdoor side of double-sided latch. CONCRETE IMPLEMENTATION
[0026] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0028] Figure 1 Figures 3-7 For the first specific embodiment of the present application, the embodiment is a structure reasonable, easy to install automatic locking double-sided latch. The double-sided latch (the indoor side): the first shaft 3 is inserted into the outer frame 5, the shaft and the outer frame are fixed by riveting, the movable block 1 is matched with the steel ball 11 and the first spring 2, and then inserted into the outer frame 5, the first spring 2 contacts the first shaft 3, and then the outer frame 5 is fixed by pressing the side of the outer frame 5. The inner hexagonal fastening screw 13 is screwed into the moving block 8 by threaded connection, and then matched with the plastic inner frame 7, the plastic inner frame 7 is matched with the decorative cover 12 through the plastic buckle on the decorative cover, the combination of the moving block 8, the inner hexagonal fastening screw 13, the decorative cover 12 and the plastic inner frame 7 is inserted into the outer frame 5, the moving block 8 contacts the first shaft 3, and then the second spring 6 is matched with the positioning column on the fixed block 4 and transmitted into the outer frame 5, the second spring 6 contacts the positioning column on the plastic inner frame 7, and the tail of the outer frame 5 is fixed with the fixed block 4 by pressing.
[0029] The door and window push-pull profile (the indoor side) is first milled according to the shape of the latch to install the hole, the latch and the hook are assembled and placed on the profile installation hole, at this time the latch cannot be completely placed in the installation hole, the end of the movable block of the latch needs to be clamped with the profile, and then pushed to the end of the latch, and then the tail of the latch is placed, and then the latch is fixed on the profile by the elastic force of the spring, and then the lock seat is installed on the frame of the push-pull profile, the decorative cover is buckled open by pushing the plastic inner frame to the tail of the latch, the inner hexagonal fastening screw is loosened to adjust the length of the hook, and then the inner hexagonal fastening screw is tightened to fix the hook, and then the decorative cover is buckled, and then the push-pull fan is contacted with the frame, and then loosened to realize automatic locking.
[0030] Double-sided latch (outdoor side): the second shaft 16 is inserted into the first hole at the end of the handle outer frame 14, and the shaft is fixed to the outer frame by riveting. After the movable block is matched with the steel ball and the spring, it is inserted into the handle outer frame 14. The spring is in contact with the shaft, and then the side of the handle outer frame is fixed by pressing and drumming. The plastic insert 15 is inserted into the handle outer frame 14. The groove in the plastic insert is aligned with the second positioning hole of the handle outer frame. After the shaft is inserted, it is fixed by riveting.
[0031] The door and window push-pull profile (outdoor side) is first milled with mounting holes according to the shape of the latch. The assembled latch is placed on the mounting hole of the profile. At this time, the latch cannot be completely placed in the mounting hole. The end movable block of the latch needs to be clamped with the profile, and then pushed towards the end of the latch. The tail with an inclined surface of the outer frame of the latch is placed in. At this time, the latch is fixed on the profile by the elastic force of the spring.
[0032] Figure 2 The second specific embodiment of the utility model has no locking function, and is only used for pushing and pulling the door leaf.
[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Other modifications or equivalent replacements to the technical solutions of the utility model made by ordinary skilled in the art should be covered in the scope of the claims of the utility model, as long as they do not deviate from the spirit and scope of the technical solutions of the utility model.
Claims
1. A quick-installation automatic locking double-sided latch, comprising an indoor side (20) and an outdoor side (21), characterized in that: The double-sided latching inner side (20) includes an outer frame (5), with a first shaft (3) riveted to the upper part of the outer frame (5). The movable block (1) is inserted into the upper end of the outer frame (5) after cooperating with the steel ball (11) and the first spring (2), and the second spring (2) is in contact with the first shaft (3). A plastic inner frame (7) is provided below the first shaft (3), and a hook lock (9) is fixedly connected to the upper end of the plastic inner frame (7). The hook lock (9) passes through the lock seat (10). The bottom of the plastic inner frame (7) is connected to a fixing block (4) through a second spring (6), and the fixing block (4) is fixedly connected to the lower end of the outer frame (5). The double-sided latch door (21) includes a latch frame (14), and a plastic insert (15) is fixed inside the latch frame (14) by a second shaft (16). A third shaft (17) is installed below the latch frame (14), and a latch block (19) is movably connected to the bottom of the third shaft (17) by a third spring (18).
2. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The upper end of the plastic inner frame (7) is fixedly connected to a moving block (8) by a decorative cover (12), and the moving block (8) is fixedly connected to a hook lock (9) by an internal hexagonal fastener (13).
3. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The height H of the locking hook (9) is adjusted according to the profile specifications.
4. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The width K and height H of the lock base (10) are adapted to different profiles.
5. The quick-installation automatic locking double-sided latch lock according to claim 2, characterized in that: The decorative cover (12) is connected to the plastic inner frame (7) by its own plastic buckle.
6. The quick-installation automatic locking double-sided latch lock according to claim 2, characterized in that: The internal hexagonal fastener (13) is used to adjust the extension length of the locking hook (9).
7. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The movable block (1), the first spring (2), and the steel ball (11) work together to achieve smooth movement.
8. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The second spring (6), the plastic inner frame (7), and the moving block (8) work together to achieve automatic locking.
9. The quick-installation automatic locking double-sided latch lock according to claim 2, characterized in that: The decorative cover (12), the internal hexagonal fastener (13), and the plastic inner frame (7) work together to achieve concealed adjustment.
10. The quick-installation automatic locking double-sided latch lock according to claim 1, characterized in that: The slot of the outer frame (14) with the handle is matched with the indoor moving block (8), which allows for a wider range of profiles to be used.