Screen window bolt
By using a spring-loaded snap-fit and snap-fit structure between the housing and the pin, the problem of easy movement of the existing three-push pin under external force is solved, the positioning structure is simplified and the installation convenience is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 佛山市镇美五金销售有限公司
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-26
AI Technical Summary
The existing three-push latch is prone to axial movement under external force, which makes the window sash unable to close or open normally, and the existing positioning structure increases the number of parts and the difficulty of assembly.
The housing and the pin are positioned by spring-loaded snap-fit. The snap-fit structure of the housing and the sliding block are combined to simplify the positioning structure and reduce the use of springs, ball bearings and other components.
This design achieves stable positioning of the pin, simplifies the assembly process, reduces costs, and improves ease of installation.
Smart Images

Figure CN224282271U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screen windows, and specifically relates to a three-push latch for controlling the closing and opening of window sashes. Background Technology
[0002] Most existing three-push latches lack a positioning structure for the extension or retraction of the pin. Under external force, the pin is prone to axial movement, causing it to easily dislodge from the lock hole, preventing the window from closing. Conversely, when opening the window, the pin may slip back into the lock hole, preventing the window from opening again. On the other hand, latches with positioning structures typically use ball bearings and springs elastically assembled into the pin, with grooves in the pin housing. When the pin extends or retracts, the ball bearings engage with the grooves for positioning. This method increases the number of parts and cost, and also makes assembly more difficult. Utility Model Content
[0003] The purpose of this invention is to provide a screen window latch that simplifies the positioning structure of the latch during the sliding process.
[0004] The screen latch includes a housing and a latch, the latch being slidably installed inside the housing, and the housing and the latch being snapped together by a spring clip.
[0005] The pin includes a pin shaft and a slide block. The slide block is slidably installed inside the housing. The pin shaft extends from one end of the slide block and can extend from one end of the housing.
[0006] The top of the slide block is provided with a lever, and the top of the housing is provided with a mounting groove. The mounting groove is arranged along the length direction of the housing, and the lever protrudes from the mounting groove and can move along the mounting groove.
[0007] The inner walls on both sides of the housing are provided with spring buckles, and the slide is provided with grooves on both sides, and the spring buckles can be engaged with the grooves.
[0008] The spring buckle is triangular in shape and is engaged with the groove along the width direction of the housing.
[0009] The groove is a through groove along the height direction of the slide block.
[0010] The inner walls on both sides of the housing are provided with buckles, which are engaged with the bottom of the slide.
[0011] The interior of the housing is provided with a sliding groove along its length. One end of the sliding groove is located at one end of the housing and is an open end. The sliding groove passes through a mounting groove, and the other end of the sliding groove is a limiting end. The slide block is slidably installed in the sliding groove and limited to the limiting end. The pin can extend out from one end of the sliding groove.
[0012] Organic screws and nuts are installed at the other end of the housing along its height direction.
[0013] The beneficial effects of this utility model are as follows: By setting the spring buckle of the housing and the groove of the pin to engage, the positioning of the pin and the housing is achieved, reducing the need for positioning components such as springs and ball bearings, greatly simplifying the positioning structure. Furthermore, during assembly, only the pin and the housing need to be assembled, making installation more convenient. Simultaneously, by setting the buckle of the housing and the sliding block of the pin to engage, the installation of the pin and the housing is achieved, reducing the need for fixing components such as the base plate and screws, making installation even more convenient. Attached Figure Description
[0014] Figure 1 This is a perspective view of the screen window latch of this utility model;
[0015] Figure 2 for Figure 1 Exploded view;
[0016] Figure 3 for Figure 1 Longitudinal sectional view;
[0017] Figure 4 for Figure 1 A bottom view;
[0018] Figure 5 for Figure 1 A three-dimensional view of the shell shown. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings.
[0020] like Figure 1 , 2 As shown, the screen latch includes a housing 1 and a latch 2. The latch 2 includes a pin 3 and a slide 4. The pin 3 extends from one end of the slide 4. The pin 3 and the slide 4 are integrally formed along the same straight line. The latch 2 is installed inside the housing 1.
[0021] like Figure 1 , 2As shown in Figures 3, 4, and 5, the top of the slide block 4 is provided with a lever 5, and the top of the housing 1 is provided with a mounting groove 6. The mounting groove 6 is set along the length direction of the housing 1 and extends through the height direction of the housing 1. The inner cavity of the housing 1 is provided with a sliding groove 7 along its length direction. One end of the sliding groove 7 extends through one end of the housing 1 as an open end 8. The sliding groove 7 passes through the mounting groove 6, and the slide block 4 is slidably installed along the sliding groove 7. The pin 3 extends out from one end of the sliding groove 7 and is inserted into the lock hole. The other end of the sliding groove 7 serves as a limiting end 9 for the sliding of the slide block 4. The slide block 4 is pressed into the sliding groove 7 from the bottom of the housing 1. The inner walls on both sides of the housing 1 are provided with two pairs of buckles 10. Each pair of buckles 10 is symmetrically arranged and is engaged with the bottom of the slide block 4. The installation of the pin and the housing is achieved by setting the buckles of the housing and the sliding block of the pin, which reduces the need for fixing with components such as the base plate and screws, making the installation more convenient. Simultaneously, the lever 5 protrudes from the mounting groove 6, and the lever 5 is moved along the mounting groove 6 by hand, thereby driving the pin 2 to move. The other end of the housing 1 is fitted with a grommet screw 11 and a nut 12 along its height direction. The grommet screw 11 and the nut 12 are threaded together, and the housing 1 and the pin 2 are fixed to the aluminum profile of the window sash by the grommet screw 11.
[0022] like Figure 1 , 2 As shown in Figures 3, 4, and 5, the inner walls on both sides of the housing 1 are provided with triangular spring clips 13, and the sides of the slide block 4 are provided with grooves 14. The grooves 14 are through slots along the height direction of the slide block 4. A pair of spring clips 13 are provided and symmetrically arranged, and two pairs of grooves 14 are provided, each pair of grooves 14 being symmetrically arranged. The slide block 4 slides along the slide groove 7. When the pin 3 extends outward from the housing 1, a pair of spring clips 13 engages with a pair of grooves 14, and the pin 2 is fixed to the housing 1, closing the window sash. When the pin 3 retracts inward from the housing 1, another pair of spring clips 13 engages with another pair of grooves 14, and the pin 2 is fixed to the housing 1 again, opening the window sash. Thus, the positioning of the pin and the housing is achieved in the open and closed states of the window sash. By setting the spring clips of the housing to engage with the grooves of the pin to achieve the positioning of the pin and the housing, the positioning of springs, balls, and other components is reduced, greatly simplifying the positioning structure. Moreover, during assembly, only the pin and the housing need to be assembled, making installation more convenient.
Claims
1. A screen window latch, characterized in that, It includes a housing (1) and a pin (2), the pin (2) being slidably installed inside the housing (1), and the housing (1) and the pin (2) being engaged by a spring buckle (13).
2. The screen window latch according to claim 1, characterized in that, The pin (2) includes a pin (3) and a slide (4). The slide (4) is slidably mounted inside the housing (1). The pin (3) extends from one end of the slide (4) and can extend from one end of the housing (1).
3. The screen window latch according to claim 2, characterized in that, The top of the slide block (4) is provided with a lever (5), and the top of the housing (1) is provided with a mounting groove (6). The mounting groove (6) is arranged along the length direction of the housing (1). The lever (5) protrudes from the mounting groove (6) and can move along the mounting groove (6).
4. The screen window latch according to claim 2, characterized in that, The inner walls on both sides of the housing (1) are provided with spring buckles (13), and the slide (4) is provided with grooves (14) on both sides. The spring buckles (13) can be engaged with the grooves (14).
5. The screen window latch according to claim 4, characterized in that, The spring buckle (13) is triangular in shape and is engaged with the groove (14) along the width direction of the housing (1).
6. The screen window latch according to claim 4, characterized in that, The groove (14) is a through groove along the height direction of the slide (4).
7. The screen window latch according to claim 2, characterized in that, The inner walls on both sides of the housing (1) are provided with buckles (10), which are engaged with the bottom of the slide (4).
8. The screen window latch according to claim 3, characterized in that, The interior of the housing (1) is provided with a sliding groove (7) along its length. One end of the sliding groove (7) is located at one end of the housing (1) and is an open end (8). The sliding groove (7) passes through the mounting groove (6). The other end of the sliding groove (7) is a limiting end (9). The sliding seat (4) is slidably installed in the sliding groove (7) and limited to the limiting end (9). The pin (3) can extend from one end of the sliding groove (7).
9. The screen window latch according to claim 8, characterized in that, Organic screws (11) and nuts (12) are installed at the other end of the housing (1) along its height direction.