Bolt structure with flying wings
By designing a wing-shaped latch structure, the problem of weak connection strength in traditional latches is solved, and an integrated connection between the latch, movable stile, and fixed door leaf is achieved, improving the stability and service life of doors and windows.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-04-10
AI Technical Summary
The screw hole design of traditional latches results in weak connection strength between the latch and the movable mullion, poor wind pressure resistance, and affects the stability and service life of doors and windows.
Design a wing-shaped latch structure. The latch body is equipped with a wing-shaped pin seat and symmetrical screw holes. The movable mullion and the fixed door leaf are fixed by screws to enhance the connection strength. The latch can be locked and unlocked by the cooperation of a lever, a connecting rod and a spring.
This design achieves an integrated connection between the latch, the movable stile, and the fixed door leaf, improving the overall connection strength and wind pressure resistance of the doors and windows, and ensuring their stability and service life.
Smart Images

Figure CN224107097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of door and window locking devices, and in particular to a latch structure with a wing. Background Technology
[0002] In door and window systems, door and window latches play multiple crucial roles. From a safety perspective, they effectively prevent doors and windows from being accidentally pushed or pried open, providing indoor safety. Functionally, they fix the position of doors and windows, preventing them from shaking due to external forces, such as stabilizing windows in strong winds. In terms of ease of use, they are simple to operate, allowing users to easily open, close, and lock them themselves, meeting daily needs and making them an indispensable component of door and window systems.
[0003] Traditional latches have certain limitations. Structurally, traditional latches typically use a front-to-back screw hole design, meaning the latch primarily connects to the fixed door leaf and cannot directly connect to the movable mullion. This results in weaker connection strength during actual use, making it extremely vulnerable to wind pressure in windy weather. Furthermore, it is prone to loosening over time with repeated opening and closing, affecting the overall stability and lifespan of the door or window. Summary of the Invention
[0004] In response to the problems mentioned in the background art, this utility model provides a pin structure with a flying wing.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A winged pin structure includes a pin body, characterized in that the pin body is provided with a wing-shaped pin seat, the pin seat is symmetrically arranged along the axial direction of the pin body, and the pin seat is provided with symmetrical screw holes.
[0007] In the aforementioned winged pin structure, the pin body is provided with a paddle, a connecting rod, and a pin. The pin body has a paddle slot and a pin hole. The paddle is housed in the paddle slot, and one end of the paddle is a pivot. The paddle is hinged to the middle of the paddle slot through the pivot. The pin is located in the pin hole and slides axially with the pin hole. The two ends of the connecting rod are respectively hinged to one end of the paddle and one end of the pin.
[0008] In the aforementioned winged pin structure, a spring is provided on the pin body, the spring is located at the hinge of the paddle and the paddle slot, the outer edge of the rotating shaft is in elastic contact with the surface of the spring, and the outer edge of the rotating shaft includes a locking surface and an unlocking surface, with an arc transition between the locking surface and the unlocking surface.
[0009] The latch structure with the flying wing, wherein the latch is composed of a latch post and a latch head, one end of the latch post is hinged to a connecting rod, the other end of the latch post is provided with a straight slot, a spring is arranged in the straight slot, the opening end of the straight slot is provided with symmetrical linear sliding grooves, one end of the latch head is slidably matched with the straight slot and elastically contacted with the spring, and a pin rod is fixedly arranged on the other end of the latch head, and the pin rod is slidably matched with the sliding grooves.
[0010] The latch structure with the flying wing, wherein screw holes are arranged on the switch plate slot.
[0011] The latch structure with the flying wing, wherein the edges of the pin seat are round or chamfered, and the screw holes are countersunk screw holes.
[0012] The technical effects and advantages of the latch structure with the flying wing are as follows:
[0013] The latch structure with the flying wing relates to the technical field of door and window locking equipment and comprises a latch main body, a pin seat in the shape of a flying wing is arranged on the latch main body, and the pin seat is symmetrically arranged along the axial direction of the latch main body. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a schematic view of the utility model.
[0015] Figure 2 It is a schematic view of the rear end of the utility model.
[0016] Figure 3 It is a sectional view of the utility model.
[0017] Figure 4 It is a schematic view of a switch plate.
[0018] Figure 5 It is a schematic view of a latch.
[0019] Figure 6 It is a schematic sectional view of the utility model installation.
[0020] Wherein, the reference signs are as follows: 1, latch main body; 2, pin seat; 3, screw hole; 4, switch plate; 5, connecting rod; 6, latch; 7, switch plate slot; 8, latch hole; 9, rotating shaft; 10, spring plate; 11, locking surface; 12, unlocking surface; 13, latch post; 14, latch head; 15, straight slot; 16, spring; 17, sliding groove; 18, pin rod; 19, screw; 20, movable mullion; 21, fixed door leaf; 22, sealing ball. DETAILED DESCRIPTION
[0021] 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.
[0022] Example 1
[0023] As shown in the figure, this embodiment proposes a winged pin structure, including a pin body 1. The pin body 1 is characterized by having a wing-shaped pin seat 2. The pin seat 2 is symmetrically arranged along the axial direction of the pin body 1 and extends to the periphery of the pin body 1. The pin seat 2 is provided with symmetrical screw holes 3.
[0024] Based on the above design (such as) Figure 6 As shown, when the latch body 1 is installed, it can be fixed with screws 19 through the screw holes 3 on the wing-shaped pin seat 2. At this time, the screws 19 will pass through the movable mullion 20 and then connect with the fixed door leaf 21, which can effectively improve the connection and fixing strength of the latch, enhance wind pressure resistance, and effectively ensure the overall stability and service life of the door and window.
[0025] Example 2
[0026] This embodiment proposes a winged latch structure, wherein the latch body 1 is provided with a lever 4, a connecting rod 5, and a latch 6. The latch body 1 has a lever groove 7 and a latch hole 8. The lever 4 is housed in the lever groove 7, one end of which is a pivot 9. The lever 4 is hinged to the middle of the lever groove 7 via the pivot 9. The latch 6 is located in the latch hole 8 and slides axially with the latch hole 8. Both ends of the connecting rod 5 are hinged to one end of the lever 4 and one end of the latch 6, respectively. In use, pulling the lever 4 rotates it, thereby driving the connecting rod 5 to move, thus controlling the extension and retraction of the latch 6 in the latch hole 8, realizing the locking and unlocking of doors and windows. Figure 3 As shown, at this time, the latch 6 is in the extended state, the lever 4 is accommodated in the lever slot 7, and the door and window are in the locked state. Conversely, if the lever 4 is pulled out, the latch 6 will retract, thus unlocking the door and window.
[0027] Example 3
[0028] The embodiment provides a latch structure with a flying wing, wherein a spring sheet 10 is arranged on a latch body 1, the spring sheet 10 controls the state of a positioning push piece 4, specifically, the spring sheet 10 is arranged at the hinge joint of the push piece 4 and a push piece groove 7, the outer edge of a rotating shaft 9 is in elastic contact with the surface of the spring sheet 10, and the outer edge of the rotating shaft 9 comprises a locking surface 11 and an unlocking surface 12, and the locking surface 11 and the unlocking surface 12 are arc-shaped and are in transition; the push piece 4 is rotated, when a door and window are in an unlocking state, the locking surface 11 is in elastic contact with the spring sheet 10; the push piece 4 is rotated, when the door and window are in a locking state, the unlocking surface 12 is in elastic contact with the spring sheet 10.
[0029] Embodiment 4
[0030] The embodiment provides a latch structure with a flying wing, wherein a spring sheet 10 is arranged on a latch body 1, the spring sheet 10 controls the state of a positioning push piece 4, specifically, the spring sheet 10 is arranged at the hinge joint of the push piece 4 and a push piece groove 7, the outer edge of a rotating shaft 9 is in elastic contact with the surface of the spring sheet 10, and the outer edge of the rotating shaft 9 comprises a locking surface 11 and an unlocking surface 12, and the locking surface 11 and the unlocking surface 12 are arc-shaped and are in transition; the push piece 4 is rotated, when a door and window are in an unlocking state, the locking surface 11 is in elastic contact with the spring sheet 10; the push piece 4 is rotated, when the door and window are in a locking state, the unlocking surface 12 is in elastic contact with the spring sheet 10.
[0031] The advantage of the design is that even if the latch head 14 is not aligned with the plug hole matched with the latch, the push piece 4 can be smoothly pressed in, at this time, the spring is in a compressed state, and the pin rod 18 is located at the top of the sliding groove 17 (the latch head 14 can be ejected under the action of the spring), and then the door and window are slightly rotated, when the latch head 14 and the plug hole are aligned, the latch head 14 can be quickly ejected under the action of the spring, and the locking of the door and window is completed.
[0032] In addition, the push piece groove 7 is provided with a screw hole 3, the edge of the pin seat 2 is a round corner or a chamfer, and the screw hole 3 is a countersunk screw hole.
[0033] In combination with the above-mentioned embodiments, the utility model provides a latch structure with a flying wing, realizes the integrated connection of the latch, the movable mullion and the fixed door leaf, effectively enhances the overall connection strength of the door and window structure and the latch, improves the wind pressure resistance performance, effectively ensures the stability and service life of the door and window as a whole, and overcomes the defects of the prior art latch.
[0034] In the description of the utility model, unless another definite provision and limitation, the term "arrange", "install", "connect", "connect", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0035] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings.
[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A latch structure with a flying wing, comprising a latch body (1), characterized in that, The pin body (1) is provided with a wing-shaped pin seat (2), which is symmetrically arranged along the axial direction of the pin body (1), and the pin seat (2) is provided with symmetric screw holes (3).
2. The bolt structure with a flying wing according to claim 1, characterized in that, The pin body (1) is provided with a push piece (4), a connecting rod (5) and a latch (6), and the pin body (1) is provided with a push piece slot (7) and a latch hole (8), the push piece (4) is accommodated in the push piece slot (7), one end of which is a rotating shaft (9), the push piece (4) is hinged to the middle of the push piece slot (7) through the rotating shaft (9), the latch (6) is arranged at the latch hole (8) and axially slides with the latch hole (8), and the two ends of the connecting rod (5) are respectively hinged to the push piece (4) and one end of the latch (6).
3. The bolt structure with a flying wing according to claim 2, characterized in that, The pin body (1) is provided with a spring piece (10), which is arranged at the hinge between the push piece (4) and the push piece slot (7), the outer edge of the rotating shaft (9) is in elastic contact with the surface of the spring piece (10), and the outer edge of the rotating shaft (9) includes a locking surface (11) and an unlocking surface (12), which are arc-shaped transitioned.
4. The bolt structure with a flying wing according to claim 3, characterized in that, The latch (6) is composed of a plug column (13) and a latch head (14), one end of the plug column (13) is hinged to the connecting rod (5), and the other end is provided with a straight slot (15), the spring (16) is arranged in the straight slot (15), one end of the opening of the straight slot (15) is provided with symmetric linear sliding grooves (17), one end of the latch head (14) is in sliding fit with the straight slot (15) and in elastic contact with the spring (16), and the latch head (14) is fixedly provided with a pin rod (18), the pin rod (18) is in sliding fit with the sliding groove (17).
5. A bolt structure with a flying wing according to any one of claims 3 and 4, characterized in that, The push piece slot (7) is provided with a screw hole (3).
6. The bolt structure with a flying wing according to claim 5, characterized in that, The edge of the pin seat (2) is a round or chamfered corner, and the screw hole (3) is a countersunk screw hole.