Bolt of vertical hinged door
By designing a latch device that combines splitable extension rods and extension rods, the problem of traditional latch length is solved, and the operation convenience and safety is improved. It is suitable for swing doors of high door leaves.
Patent Information
- Application Number
- CN202422600611.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The length of the existing swing door latch is fixed and cannot be lengthened, which leads to inconvenience in operating on higher door leaves, especially for people with medium and low heights, which increases safety risks.
A latch device that can be divided into an extension rod, an extension rod and an end rod is designed. Through the extension assembly, the length of the extension rod can be cut as needed and combined into a latch of the required length, including a clamping block, an extension rod, an end rod and a latch frame, which combines it with a butt head and a slot to increase flexibility.
It solves the problem of inconvenience in operation of traditional latches on high doors, improves the user experience of people with medium and low heights, and reduces safety risks.
Smart Images
Figure CN223281886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building aluminum alloy doors and windows, in particular to a latch for a casement door. Background Art
[0002] A swing door latch is a mechanical device used to secure a swing door, usually installed at the edge or bottom of the door. When the door is closed, the latch rod is manually inserted into a hole in the door frame or the ground, ensuring that the door cannot be easily opened, thus providing a safe locking effect. Swing door latches are widely used in residential, commercial doors and windows, warehouse doors and other occasions to provide additional security and stability. They are particularly suitable for double doors or doors that need to be fixed for a long time.
[0003] Conventional latches in existing technology are fixed in length and cannot be lengthened. This can be inconvenient when used on taller doors, particularly those in warehouses, garages, or industrial settings. For people of medium or shorter heights, latches are often located at the top or higher up on the door, requiring additional tools or strained reach. This results in a poor user experience, increased inconvenience, and potential safety hazards during daily use. Furthermore, fixed-length latches lack flexibility and cannot adapt to varying door heights, limiting their scope of use. Summary of the Invention
[0004] The purpose of this utility model is to solve the problem that the existing technology has a fixed length and cannot be extended, which may cause inconvenience in operation when used on tall door leaves, especially high doors in warehouses, garages or industrial settings. For people of medium and short height, the latch is often located at the top or higher position of the door. When operating, it requires additional tools or a lot of effort to reach the latch, resulting in a poor user experience, increased inconvenience and safety hazards in daily use.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] The casement door latch includes a clamping block, an extension rod, an end rod, and a latch frame. It is characterized in that an edge block is fixedly provided on the head of the extension rod, and corrugated inclined surfaces are provided on the upper and lower sides of the edge block. A latch column is fixedly provided on the bottom of the end rod, and the latch column is movably inserted into the interior of the latch frame. An empty slot is provided on the rear side of the extension rod, and a clamping block is movably placed in the empty slot on the rear side of the extension rod. Extension components that extend the length of the entire casement door latch are provided on the sides of the extension rod and the end rod.
[0007] Optionally, a docking clamp is fixedly provided at the bottom of the extension rod, and a docking slot is provided on the side surface of the top of the end rod.
[0008] Optionally, a threaded barrel is fixedly provided at the center position of the side of the clamping block, a limiting screw is screwed into the internal thread of the threaded barrel, a hexagonal groove is provided on the side of the limiting screw, and an avoidance hole is provided on the side of the extension rod near one end of the edge block.
[0009] Optionally, the extension assembly includes a first docking column, a second docking column, and an extension rod, and docking holes are provided at the ends of the side surfaces of the extension rod, and the first docking column is fixedly provided at the bottom of the side surface of the extension rod.
[0010] Optionally, a second docking post is fixedly provided on the top of the side surface of the end rod, and the docking hole has the same diameter as the first docking post and the second docking post.
[0011] Optionally, the cross-sectional shape of the docking clamp head when viewed from above is the same as the cross-sectional shape of the docking clamp slot when viewed from above, and a corrugated protrusion is provided at the edge of the side of the end rod.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. The present invention divides the traditional conventional latch device into an extension rod, an extension rod, and an end rod. A latch post is provided on the side of the end rod, and a docking clamp is provided at the bottom of the extension rod. A docking slot is provided on the top side of the end rod. The docking clamp and the docking slot allow the extension rod and the extension rod to form a conventional latch of conventional length. Extension assemblies are provided at both ends of the extension rod, allowing workers to cut the length of the extension rod as needed. The extension assembly allows the extension rod, the extension rod, and the end rod to form a latch of the required length. This, to a certain extent, solves the problem that conventional latch devices in the prior art are fixed in length and cannot be lengthened. When used on taller door panels, especially high doors in warehouses, garages, or industrial settings, this can cause operational inconvenience. For people of medium or short height, the latch is often set at the top or higher position of the door. When operating, additional tools or a difficult reach are required to reach the latch, resulting in a poor user experience and increasing inconvenience and safety hazards in daily use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 for Figure 1 Schematic diagram of the structure with added extension rod.
[0016] Figure 3 It is a structural diagram of the clamping piece and its connecting parts.
[0017] In the figure: 1. Corrugated bevel; 2. Edge block; 3. Extension rod; 31. Avoidance hole; 32. Docking clamp; 33. First docking column; 4. Docking hole; 5. Extension rod; 6. Second docking column; 7. End rod; 71. Docking slot; 8. Pin column; 9. Pin frame; 10. Clamping block; 11. Threaded barrel; 12. Limiting screw. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0020] Reference Figure 1-3 , the casement door latch includes a clamping block 10, an extension rod 3, an end rod 7, and a latch frame 9. The head of the extension rod 3 is fixed with an edge block 2. The upper and lower sides of the edge block 2 are provided with a corrugated slope 1. The bottom of the end rod 7 is fixed with a latch column 8. The latch column 8 is movably inserted into the interior of the latch frame 9. The latch frame 9 is fixed to the side of the door frame with bolts when in use.
[0021] An empty slot is provided on the rear side of the extension rod 3, and a clamping block 10 is movably placed in the empty slot on the rear side of the extension rod 3. Extension components for extending the length of the entire casement door latch are provided on the sides of the extension rod 3 and the end rod 7. A docking card head 32 is fixedly provided at the bottom of the extension rod 3, and a docking card slot 71 is provided on the top side of the end rod 7. The top cross-sectional shape of the docking card head 32 is the same as the top cross-sectional shape of the docking card slot 71. A corrugated protrusion is provided on the side edge of the end rod 7, which is convenient for the user to use two fingers to pinch the end rod 7 to operate the door bolt and insert the bolt column 8 into the bolt card frame 9 or detach it from the inside of the bolt card frame 9.
[0022] A threaded barrel 11 is fixedly provided at the center position of the side of the clamping block 10, and the internal thread of the threaded barrel 11 is screwed into a limiting top screw 12. A hexagonal groove is provided on the side of the limiting top screw 12. An avoidance hole 31 is provided on the side of the extension rod 3 near one end of the edge block 2. The extension component includes a first docking column 33, a second docking column 6, and an extension rod 5. A docking hole 4 is provided at the end of the side of the extension rod 3. The first docking column 33 is fixedly provided at the bottom of the side of the extension rod 3, and the second docking column 6 is fixedly provided at the top of the side of the end rod 7. The docking hole 4 has the same diameter as the first docking column 33 and the second docking column 6.
[0023] The specific implementation steps and principles of this utility model are as follows:
[0024] When installing the entire latch, fix the latch frame 9 on the casement door frame, insert the docking clamp head 32 into the docking slot 71, so that the end rod 7 and the extension rod 3 are spliced together, and the clamping block 10 is inserted into the empty slot reserved on the rear side of the extension rod 3. Then, the clamping block 10, the extension rod 3, and the end rod 7 are integrated into the C-shaped groove on the side of the casement door. Through the avoidance hole 31, the worker uses an Allen wrench to turn the limiting screw 12, and uses the friction between the limiting screw 12 and the side wall of the C-shaped groove to limit the clamping block 10 to the side of the C-shaped groove.
[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A latch for a swing door, comprising a clamping block (10), an extension rod (3), an end rod (7), and a latch frame (9), characterized in that: The head of the extension rod (3) is fixedly provided with an edge block (2), and the upper and lower surfaces of the edge block (2) are both provided with corrugated inclined surfaces (1). The bottom of the end rod (7) is fixedly provided with a latch column (8), and the latch column (8) is movably inserted into the interior of the latch clamping frame (9). The rear side of the extension rod (3) is provided with an empty slot, and a clamping block (10) is movably inserted into the empty slot on the rear side of the extension rod (3). The sides of the extension rod (3) and the end rod (7) are provided with an extension component for extending the length of the entire flat door latch.
2. The latch for a swing door according to claim 1, wherein: A docking clamp (32) is fixedly provided at the bottom of the extension rod (3), and a docking clamp slot (71) is provided on the top side of the end rod (7).
3. The latch for a swing door according to claim 1, wherein: A threaded barrel (11) is fixedly provided at the center position of the side of the clamping block (10), and a limiting top screw (12) is screwed into the internal thread of the threaded barrel (11). A hexagonal groove is provided on the side of the limiting top screw (12), and an avoidance hole (31) is provided on the side of the extension rod (3) near one end of the edge block (2).
4. The latch for a swing door according to claim 1, wherein: The extension assembly comprises a first docking column (33), a second docking column (6), and an extension rod (5); a docking hole (4) is provided at the end of the side of the extension rod (3); and the first docking column (33) is fixedly provided at the bottom of the side of the extension rod (3).
5. The latch for a swing door according to claim 4, characterized in that: A second docking column (6) is fixedly provided on the top of the side of the end rod (7), and the docking hole (4) has the same diameter as the first docking column (33) and the second docking column (6).
6. The latch for a swing door according to claim 2, wherein: The cross-sectional shape of the docking clamp head (32) when viewed from above is the same as the cross-sectional shape of the docking clamp slot (71) when viewed from above, and a corrugated protrusion is provided at the side edge of the end rod (7).