Push-pull strip lock
By designing a limiting component for the push-pull lock, the window sash can be opened quickly and closed automatically without moving the lever, solving the problem of cumbersome operation in existing technologies and providing a simple operation method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 3H INC
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-01
AI Technical Summary
Existing aluminum alloy push-pull locks are cumbersome to operate when opening and closing window sashes, requiring the push-pull bar to be moved to the corresponding position.
Design a push-pull bar lock, including a toggle bar, a lock hook seat, a lock hook, a first spring, a positioning block, and a limiting component. The limiting component limits the lock hook seat when the bar lock is opened to achieve quick opening, and automatically releases the limit when the lock is closed to achieve automatic locking.
The window can be opened quickly without moving the lever to the corresponding position, and it can be closed automatically without manual operation, making it simple and convenient to use.
Smart Images

Figure CN224187379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window technology, specifically to a push-pull lock. Background Technology
[0002] The existing aluminum alloy push-pull locks on the market require the sliding bar to be moved down to the corresponding position when opening the window and moved up to the corresponding position when closing the window, which is quite cumbersome. Summary of the Invention
[0003] To address the aforementioned technical problems, this utility model provides a push-pull lock that allows the window sash to be opened without manually moving the lever downwards to the corresponding position; simply moving the lever downwards opens the window sash. Conversely, closing the window sash is achieved without manually moving the lever to the corresponding position, making the operation simple and convenient.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A push-pull bar lock is provided, comprising a lock body and a lock base. The lock body includes a toggle bar, a hook seat, a hook, a first spring, a positioning block, and a limiting component. One end of the first spring abuts against the bottom end of the toggle bar, and the other end abuts against the positioning block. The hook is fixed to the hook seat and installed together with the hook seat on the inner top of the toggle bar, moving as the toggle bar is moved. The lock base is disposed on the hook seat. The lock is positioned such that the lock hook and the lock hook seat cooperate to open or close the bar lock. The limiting component is located at the top of the lever bar. The limiting component includes a sliding block, a tower spring, and a limiting shaft. The tower spring and the limiting shaft are located inside the sliding block. One end of the tower spring abuts against the inner wall of the sliding block, and the other end of the tower spring abuts against the tail of the limiting shaft. The limiting shaft limits the lock hook seat when the bar lock is opened, enabling quick opening. When the bar lock is closed, the limiting of the lock hook seat is automatically released, and the lock is automatically locked.
[0005] The sliding block is provided with a slot.
[0006] The locking hook seat is provided with a boss.
[0007] The tail end of the limiting shaft is provided with a shaft block.
[0008] A second spring is also provided between the limiting component and the top of the toggle bar.
[0009] The push-pull bar lock also includes a housing, which is used to limit and fix the bar lock body.
[0010] The top of the housing is provided with a pin, and the bottom of the second spring abuts against the pin.
[0011] The toggle bar is also equipped with a decorative cover.
[0012] The beneficial effects of this utility model are as follows: Unlike existing technologies, this utility model provides a push-pull lock, including a lock body and a lock base. The lock body includes a toggle bar, a hook seat, a hook, a first spring, a positioning block, and a limiting component. One end of the first spring abuts against the bottom of the toggle bar, and the other end abuts against the positioning block. The hook is fixed to the hook seat and installed together with the hook seat on the top inner side of the toggle bar, moving as the toggle bar is moved. The lock base is located on one side of the hook, allowing the hook and hook seat to cooperate to open or close the lock. The limiting component is located at the top of the toggle bar, limiting the hook seat when opening the lock for quick opening, and automatically releasing the limit on the hook seat when locking the lock for automatic locking. With this structural design, the window can be quickly opened without manually moving the toggle bar to the corresponding position, and the window can be automatically closed without manually moving the toggle bar upwards to the corresponding position. Attached Figure Description
[0013] Figure 1 This is an exploded view of a push-pull lock;
[0014] Figure 2 This is a schematic diagram of the overall structure of the push-pull lock when the window is opened;
[0015] Figure 3 This is a schematic diagram of the overall structure of the push-pull lock when the window sash is closed;
[0016] Figure 4 This is a schematic diagram of another integral structure of the push-pull lock when the window sash is closed;
[0017] Figure 5 This is a schematic diagram of the structure after the limit component and the sliding block are assembled;
[0018] Figure 6 This is a schematic diagram of the overall structure of the sliding block;
[0019] Figure 7 This is a schematic diagram of the overall structure of the lock hook seat;
[0020] Figure 8 This is a schematic diagram of the overall structure of the limit shaft.
[0021] The following are the labels in the diagram: 01, Pin; 02, Housing; 03, Second Spring; 04, Sliding Block; 05, Tower Spring; 06, Shaft Block; 07, Limiting Shaft; 08, Decorative Cover; 09, Actuating Strip; 10, Set Screw; 11, Lock Hook Seat; 12, Lock Hook; 13, Lock Seat; 14, First Spring; 15, Positioning Block; 16, Protrusion; 041, Groove; 110, Boss; 042, Lug; 021, Sliding Groove. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0024] Please see Figures 1-8 The figures show the structure of the push-pull bar lock of this utility model and its components. As shown, this embodiment of the utility model provides a push-pull bar lock, the overall structure of which includes a lock body and a lock base 13. The lock body includes a toggle bar 09, a hook seat 11, a hook 12, a first spring 14, a positioning block 15, and a limiting assembly. One end of the first spring 14 abuts against the bottom end of the toggle bar 09, and the other end abuts against the positioning block 15. The hook 12 is fixed to the hook seat 11 and is installed together with the hook seat 11 on the top inner side of the toggle bar 09, moving as the toggle bar 09 is moved. The lock seat 13 is located on one side of the lock hook 12 so that the lock hook 12 and the lock hook seat 11 cooperate to open or close the bar lock. The limiting component is located on the top of the toggle bar 09. The limiting component includes a sliding block 04, a tower spring 05 and a limiting shaft 07. The tower spring 05 and the limiting shaft 07 are located inside the sliding block 04. One end of the tower spring 05 abuts against the inner wall of the sliding block 04, and the other end of the tower spring 05 abuts against the tail of the limiting shaft 07. When the bar lock is opened, the limiting shaft 07 limits the lock hook seat 11 to achieve quick opening. When the bar lock is closed, the limiting of the lock hook seat 11 is automatically released and the lock is automatically locked.
[0025] Based on the design of the bar lock structure of this utility model, when the window sash is opened, it is not necessary to continuously push the toggle bar down to the corresponding position. It is only necessary to push the toggle bar 09 down and then release it. The lock hook seat 11 and the lock hook 12 also move down and disengage from the lock seat 13. At this time, since the limiting shaft 07 does not reach the lock seat 13, the tower spring 05 will push the limiting shaft to the corresponding position. After the toggle bar is released, the toggle bar 09, the lock hook seat 11 and the lock hook 12 will be pushed up by the first spring 14 to the position of the limiting shaft and be limited, so that the lock hook can no longer be engaged with the lock seat and locked.
[0026] When the window needs to be closed, during the closing process, the limiting shaft 07 is pushed by the lock seat 13, causing the limiting shaft to move backward. As a result, the lock hook seat is not limited by the limiting shaft 07, and the toggle bar 09, lock hook seat 11 and lock hook 12 will be pushed to the position by the first spring, so that the lock hook automatically enters the lock seat 13 and realizes the automatic closing function.
[0027] The limiting shaft in this invention can be cylindrical, square, or other shapes, as long as it can achieve the limiting effect.
[0028] In one possible implementation, the sliding block 04 is provided with a slot 041.
[0029] The slot design is primarily for limiting the installation of the limiting component. The limiting component is installed entirely within the slot to limit the movement of the locking hook seat. See details... Figure 5 As shown. In this invention, the slot of the sliding block can be circular, square, or other shapes, as long as it can provide a cavity for installing the limiting component.
[0030] In one possible implementation, the locking hook seat 11 is provided with a boss 110.
[0031] The locking hook seat 11 is provided with a boss for limiting the travel. Specifically, the locking hook seat has two symmetrical bosses. For example, when participating in... Figure 6 As shown.
[0032] In one possible implementation, the limiting component further includes a shaft block 06, which is disposed within the sliding block 04, and the tower-shaped spring 05 and the limiting shaft 07 are integrally installed within the shaft block 06.
[0033] The tail of the limiting shaft is provided with a protrusion 16.
[0034] See details Figure 4 As shown, a shaft block 06 is provided at the tail of the limiting shaft 07. The limiting shaft 07 and the tower-shaped spring 05 are installed inside the shaft block 06, and the whole assembly is installed in the groove of the sliding block 04. A protrusion 16 is provided at the tail of the limiting shaft. Specifically, the limiting effect is achieved by the relative friction between the protrusion 16 and the locking hook seat 11.
[0035] In one possible implementation, a second spring 03 is also provided between the limiting component and the top of the toggle bar 09. The first spring 14 and the second spring 03 work together on the toggle bar, allowing it to automatically return when released, and also providing a damping effect during the toggle process.
[0036] In one possible implementation, the push-pull bar lock also includes a housing 02, which is used to limit and fix the bar lock body.
[0037] In one possible implementation, a pin 01 is inserted through the top of the outer casing 02, and the bottom of the second spring 03 abuts against the pin 01.
[0038] The second spring 03 provides a certain amount of elastic space for the sliding block 04.
[0039] It should be noted that the sliding block 04 is specifically connected to the sliding groove 021 of the outer shell 02 through the lugs 042 on both sides, so that the sliding block 04 can slide up and down relative to the outer shell 02.
[0040] In one possible implementation, the toggle bar 09 is also provided with a decorative cover 08, which makes the toggle bar 09 look more beautiful and elegant.
[0041] The above detailed description of the push-pull bar lock of this utility model, in conjunction with the accompanying drawings, indicates that the push-pull bar lock of this utility model includes a lock body and a lock base. The lock body includes a toggle bar, a hook seat, a hook, a first spring, a positioning block, and a limiting component. One end of the first spring abuts against the bottom end of the toggle bar, and the other end abuts against the positioning block. The hook is fixed on the hook seat and is installed together with the hook seat on the top inner side of the toggle bar, moving as the toggle bar is moved. The lock base is located on one side of the hook, so that the hook and the hook seat cooperate to open or close the bar lock. The limiting component is located at the top of the toggle bar. When opening the bar lock, the limiting component limits the hook seat to achieve quick opening, and when closing the bar lock, it automatically releases the limitation on the hook seat and automatically locks. With this structural design, the window sash can be quickly opened without moving the toggle bar to the corresponding position, and the window sash can be automatically closed without manually moving the toggle bar upwards to the corresponding position, making the operation simple and convenient.
[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A push-pull bar lock, characterized in that, The push-pull bar lock includes a lock body and a lock seat. The lock body includes a toggle bar, a hook seat, a hook, a first spring, a positioning block, and a limiting component. One end of the first spring abuts against the bottom end of the toggle bar, and the other end abuts against the positioning block. The hook is fixed on the hook seat and installed together with the hook seat on the top inner side of the toggle bar, moving as the toggle bar is moved. The lock seat is located on one side of the hook, so that the hook and the hook seat cooperate to open or close the bar lock. The limiting component is located on the top of the toggle bar and includes a sliding block, a tower spring, and a limiting shaft. The tower spring and the limiting shaft are located inside the sliding block. One end of the tower spring abuts against the inner wall of the sliding block, and the other end of the tower spring abuts against the tail of the limiting shaft. The limiting shaft limits the hook seat when the bar lock is opened, enabling quick opening, and automatically releases the limit on the hook seat when the bar lock is closed, thus automatically locking the bar lock.
2. The push-pull bar lock according to claim 1, characterized in that, The sliding block is provided with a slot.
3. The push-pull bar lock according to claim 1, characterized in that, The locking hook seat is provided with a boss.
4. The push-pull bar lock according to claim 1, characterized in that, The limiting assembly also includes a shaft block, which is disposed within the sliding block, and the tower-shaped spring and the limiting shaft are integrally installed within the shaft block.
5. The push-pull bar lock according to claim 1, characterized in that, The tail of the limiting shaft is provided with a protrusion.
6. The push-pull bar lock according to claim 1, characterized in that, A second spring is also provided between the limiting component and the top of the toggle bar.
7. The push-pull bar lock according to claim 6, characterized in that, The push-pull bar lock also includes a housing, which is used to limit and fix the bar lock body.
8. The push-pull bar lock according to claim 7, characterized in that, A pin is inserted through the top of the housing, and the bottom of the second spring abuts against the pin.
9. The push-pull bar lock according to claim 1, characterized in that, The toggle bar is also equipped with a decorative cover.