Door and window base-free handle
By simplifying the structure and using a baseless handle design with ball head screw connection, the problem of complex structure and numerous parts in existing baseless handles is solved, achieving a compact, stable, and easy-to-install handle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
Existing baseless handle structures are complex, have many parts, require high machining precision, are large in size, have limited design options, and are unstable in operation.
The simplified door and window handle design without a base includes a handle, bushing, elastic abutment, locking plate, base, and square shaft. The combination of elastic abutment and locking plate reduces the number of parts and simplifies the manufacturing process. The ball head set screw connection improves stability.
It achieves a simple handle structure, fewer parts, low processing difficulty, compact size, stable operation, reduced shaking problems, and improved aesthetics and ease of installation.
Smart Images
Figure CN223964285U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and window hardware accessories, specifically relating to a baseless handle for doors and windows. Background Technology
[0002] Door and window handles are used on operable doors and windows. Besides their normal opening and closing function, they also affect the appearance and aesthetics of the doors and windows. With economic development, the market has placed higher demands on the quality and design of handles. In recent years, baseless handles have gained widespread use due to their simple appearance, small footprint, and ease of installation. However, baseless handles are generally larger in size and have limited design options due to the internal base structure. They also suffer from complex component structures, a large number of parts, and high processing precision requirements. Utility Model Content
[0003] The purpose of this utility model is to provide a baseless handle for doors and windows, which has a simple structure, few parts, and low processing difficulty.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A baseless handle for doors and windows includes a handle, a bushing, an elastic abutment, a locking piece, a base, and a square shaft. The head of the handle has a stepped mounting shaft hole, which includes a large hole for the base and a small hole for the bushing. The bottom wall ring of the large hole for the base is convex inward and concave outward. An elastic abutment hole is provided at intervals in the concave part of the bottom wall ring of the large hole for the base. The elastic abutment includes a spring and a ball bearing. The ball bearing is located on the open side of the elastic abutment hole. The bushing is installed in the bushing hole. The locking piece is fitted onto one end of the bushing and is locked between the convex part of the bottom wall ring of the large hole for the base and the outer wall of the bushing. The locking piece has a limiting hole corresponding to the ball bearing. The base is installed in the large hole for the base and is inserted into the outer ring of the locking piece. The base has a base shaft hole that faces the shaft hole of the bushing. A base screw hole is provided on the side wall of the base shaft hole. A portion of the square shaft is located in the base shaft hole and the shaft hole for the bushing, and is positioned and connected to the square shaft by a set screw that passes through the handle and the side wall of the bushing in sequence.
[0006] Furthermore, the side wall of the card slot is provided with a slot, and the outer end face of the base is provided with a protrusion that mates with the slot.
[0007] Furthermore, the bottom of the bushing is fixed to the handle by a fastening screw. The bushing includes a tube with a bottom wall, and an external folding pressure plate is provided at the opening of the tube. The screw passes through the bottom wall of the bushing and connects to the handle.
[0008] Furthermore, the locking piece includes a ring piece, the shaft hole of which is fitted onto the outer wall of the sleeve tube. The ring piece is evenly provided with four limiting holes. The edge of the locking slot includes four small locking slots and two large locking slots, with two small locking slots respectively provided between the two large locking slots.
[0009] Furthermore, the outer wall of the bushing is polygonal, and the sidewall of the bushing hole corresponds to the outer wall of the bushing.
[0010] Furthermore, the two sides of the base shaft hole are large-diameter holes, and a square shaft clip is fitted on the outer large-diameter hole of the square shaft; the outer end of the base has an extended protrusion, the protrusion corresponds to the clip, the two base screw holes are symmetrically arranged on the base and located between two adjacent small protrusions, and the outer ring of the inner end of the base is fitted with a plastic gasket, the cross-section of which is L-shaped, and its outer folded edge abuts against the end face of the handle.
[0011] Furthermore, a bushing is riveted to the base shaft hole. The bushing is located in the middle of the shaft hole and the inner large diameter. The outer folding pressure plate of the bushing is attached to the bottom wall of the inner large diameter, and the square shaft card is attached to the outer folding pressure plate of the bushing at the bottom wall of the inner large diameter.
[0012] Furthermore, the bottom of the set screw has a ball-shaped structure.
[0013] The advantages of this utility model are: simple structure, few parts, low processing difficulty, and the ingenious handle base structure is more conducive to the shape design of the handle, which can realize the small, simple and smooth shape of the handle. In addition, the top screw ball head connection structure between the handle and the square shaft reduces the multiple conversion of operating force and avoids empty stroke, thereby improving the problem of handle wobbling. Attached Figure Description
[0014] Figure 1 This is an exploded structural diagram of some of the components of this utility model after assembly.
[0015] Figure 2 This is an exploded structural diagram of the present invention from one perspective.
[0016] Figure 3 This is an exploded structural diagram of the present invention from another perspective.
[0017] Figure 4 This is a side view of the assembled structure of this utility model.
[0018] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure along the KK direction.
[0019] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure along the LL direction.
[0020] Figure 7 yes Figure 5 A diagram of the center handle.
[0021] Figure 8This is a three-dimensional structural diagram of the base of this utility model from one perspective.
[0022] Figure 9 This is a three-dimensional structural diagram of the base from another perspective.
[0023] Figure 10 This is a schematic diagram of the bushing structure of this utility model. Detailed Implementation
[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0025] like Figures 1 to 10 As shown, this utility model discloses a baseless handle for doors and windows, including a handle 1, a bushing 2, an elastic abutment, a locking piece 4, a base 5, and a square shaft 6. The head of the handle 1 is provided with a stepped mounting shaft hole, which includes a large hole 11 in the base and a small hole 12 in the bushing. The bottom wall ring of the large hole 11 in the base is convex inward and concave in outward to reduce rotational friction. By setting this protrusion, the stability between the positioning piece and the handle is increased. Four elastic abutment holes 111 are evenly spaced around the axis of the mounting shaft hole in the bottom wall recess of the large hole of the base. The elastic abutment includes a spring 31 and a ball 32. The ball 32 is located on the opening side of the elastic abutment hole 111. The bushing is installed in the bushing hole. The outer flange of the inner side of the bushing is located in the large hole of the base. The locking piece 4 is sleeved on the inner end of the bushing and locked between the bottom wall protrusion of the large hole of the base and the outer flange of the bushing. The structure of the bushing and the locking piece solves the problem of complex handle positioning mechanism, reduces the number of products and reduces the processing difficulty. The locking piece 4 has a limiting hole 41 corresponding to the ball bearing 32. Under the action of the spring, the ball bearing forms a rotating positioning handle with the limiting hole. The base 5 is installed in the base large hole 11 and is inserted into the outer ring of the locking piece 4 to form a whole. The base 5 has a base shaft hole 51 that is aligned with the shaft hole of the bushing 3. Two aligned base screw holes 52 are provided on the side wall of the base shaft hole 51. The base screw 55 is installed in the base screw hole to connect the door and window. Part of the square shaft 6 is located in the base shaft hole 51 and the shaft hole 21 of the bushing. The set screw 7 first screws through the threaded hole of the handle 1, then through the light hole on the side wall of the bushing 2, and finally pushes into the circular groove opened on the square shaft for connection and positioning. The bottom of the set screw is a ball head structure, which makes the connection more stable and less prone to shaking, while not damaging the strength of the square shaft.
[0026] The side wall of the positioning piece 4 is provided with a locking slot, and the outer end face of the base is provided with a protrusion that mates with the locking slot. Specifically, the positioning piece 4 includes a ring piece, the shaft hole of which is fitted onto the outer wall of the bushing tube. The ring piece is provided with four evenly spaced limiting holes 41 for positioning the ball bearings. The edge of the locking slot includes four small locking slots 42 and two large locking slots 43, and two small locking slots are respectively provided between the two large locking slots.
[0027] Specifically, the bottom of the bushing 2 is fixed to the handle 1 by a fastening screw 9. The bushing 2 includes a tube with a bottom wall, and an outward flange 22 is provided at the open end of the tube. The fastening screw 9 passes through the bottom wall of the bushing and is threaded to the handle. The outer wall of the tube of the bushing 2 is polygonal, and the hole wall of the bushing hole 12 corresponds to the outer wall of the tube of the bushing to further form a positioning.
[0028] The base 1 has large-diameter holes on both sides of the base shaft hole, with an inner large-diameter hole 511. The outer end wall of the base 1 is provided with a weight-reducing groove. The square shaft 6 is fitted with a square shaft clip 60 corresponding to the outer large-diameter hole 511. The square shaft clip is a ring with a slit. The inner wall of the ring has three spaced protrusions that match the slots 61 on the square shaft. The square shaft and the clip are separate, which effectively solves the problems of diverse square shaft specifications, high production costs, and large inventory in the market. The outer end of the base has protrusions 53 and 54, which correspond to the clips. Two base screw holes 52 are symmetrically arranged between two adjacent small protrusions. The outer L-shaped groove 55 of the inner end of the base 5 is fitted with a plastic gasket 10. The cross-section of the plastic gasket is L-shaped, and its outer folded edge 101 abuts against the end wall of the handle.
[0029] To increase wear resistance and solve the problem of handle loosening after prolonged use, a bushing 8 is riveted to the shaft hole of the base. The bushing is a round tube with a large outward folding pressure plate 81 at one end and a small outward folding arc plate at the other end. The bushing is located in the middle of the shaft hole and the inner large diameter. The large outward folding pressure plate is attached to the bottom wall of the inner large diameter between the square shaft card.
[0030] This utility model involves sequentially installing the elastic abutment, locking piece, bushing, and fastening screws, then tightening the set screws to form a handle assembly. Next, the base and bushing are riveted together, and a plastic washer is installed to form a base assembly. A square shaft clip is pressed into the square shaft slot to form a positioning square shaft assembly. The square shaft assembly, base assembly, base screws, and handle assembly set screws are then sequentially installed to tighten the handle assembly and complete the handle installation.
Claims
1. A baseless handle for doors and windows, characterized in that, The device includes a handle, a bushing, an elastic stop, a locking piece, a base, and a square shaft. The head of the handle has a stepped mounting hole, which includes a large hole for the base and a small hole for the bushing. The bottom wall ring of the large hole for the base is convex inward and concave outward. An elastic stop hole is provided at intervals in the concave part of the bottom wall ring of the large hole for the base. The elastic stop includes a spring and a ball. The ball is located on the open side of the elastic stop hole. The bushing is installed in the bushing hole. The locking piece is fitted onto one end of the bushing and is locked between the convex part of the bottom wall ring of the large hole for the base and the outer wall of the bushing. The locking piece has a limiting hole corresponding to the ball. The base is installed in the large hole for the base and is inserted into the outer ring of the locking piece. The base has a base shaft hole that faces the shaft hole of the bushing. A base screw hole is provided on the side wall of the base shaft hole. A portion of the square shaft is located in the base shaft hole and the shaft hole for the bushing, and is positioned and connected to the square shaft by a set screw that passes through the handle and the side wall of the bushing in sequence.
2. A baseless handle for doors and windows according to claim 1, characterized in that, The side wall of the card slot is provided with a slot, and the outer end face of the base is provided with a protrusion that mates with the slot.
3. A baseless handle for doors and windows according to claim 2, characterized in that, The bottom of the bushing is fixed to the handle by a fastening screw. The bushing includes a tube with a bottom wall and an external pressure plate at the opening of the tube. The screw passes through the bottom wall of the bushing and connects to the handle.
4. A baseless handle for doors and windows according to claim 3, characterized in that: The locking piece includes a ring piece, the shaft hole of which is fitted onto the outer wall of the sleeve tube. Four limiting holes are evenly arranged on the ring piece. The edge of the locking slot includes four small locking slots and two large locking slots, with two small locking slots respectively provided between the two large locking slots.
5. A baseless handle for doors and windows according to claim 1, characterized in that: The outer wall of the bushing is polygonal, and the sidewall of the bushing hole corresponds to the outer wall of the bushing.
6. A baseless handle for doors and windows according to claim 2, characterized in that: The two sides of the base shaft hole are large diameter holes, and the square shaft is fitted with a square shaft clip corresponding to the outer large diameter hole; the outer end of the base has an extended protrusion, the protrusion corresponds to the clip, the two base screw holes are symmetrically arranged on the base and located between two adjacent small protrusions, and the outer ring of the inner end of the base is fitted with a plastic gasket, the cross-section of the plastic gasket is L-shaped, and its outer folded edge abuts against the end face of the handle.
7. A baseless handle for doors and windows according to claim 6, characterized in that: The base shaft hole is riveted with a bushing, which is located in the middle of the shaft hole and the inner large diameter. The outer folding pressure plate of the bushing is attached to the bottom wall of the inner large diameter, and the square shaft card is attached to the outer folding pressure plate of the bushing at the bottom wall of the inner large diameter.
8. A baseless handle for doors and windows according to claim 1, characterized in that: The bottom of the set screw has a ball-shaped structure.