A comfortable grip feeling inside opening and inside turning handle

Abstract

The utility model belongs to the technical field of door lock, and relates to an inside opening and inside turning handle with comfortable feeling. The utility model, including base and rotatable handle main part, the base has the installation space inside, be equipped with the main shaft on the handle main part, be equipped with the high -strength lock catch spare that can reciprocate linear motion along the horizontal direction in the installation space, be equipped with the gear drive spare that is used for driving high -strength lock catch spare to carry out horizontal reciprocating linear motion below the main shaft, the handle main part end has the circular arc chamfer structure. The utility model constructs the unique circular arc chamfer structure at the handle main part end, converts the traditional stiff right angle edge into the continuous smooth curved surface, makes the handle and palm adhesion degree improve greatly, and the holding comfort is improved obviously.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology and relates to a comfortable inward-opening and inward-tilting handle. Background Technology

[0002] Current inward-opening and tilting handles on the market have several shortcomings: First, the handle design neglects ergonomics, with sharp edges or harsh right angles at the ends, which can cause discomfort and lead to hand fatigue or even injury during prolonged use. Second, their appearance is monotonous and difficult to match with modern home décor. Third, the internal locking components are made of insufficiently strong materials and the transmission structure is unstable, making them prone to jamming and deformation after frequent use, affecting the sealing and security of doors and windows. Therefore, there is an urgent need to develop a comfortable inward-opening and tilting handle that overcomes these defects.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a handle device and an inward-opening and tilt-and-turn window system [Application No.: 202011413082.4]. The handle device includes a handle, a handle seat, a transmission component, and a transmission mechanism for driving the transmission component to move. The handle is rotatably connected to the handle seat, and the transmission mechanism is connected to the handle seat and is drively connected to the handle and the transmission component. The handle is connected to a hook-locking mechanism that can be hooked onto the handle seat to lock the handle and can be manually unlocked by the user. The inward-opening and tilt-and-turn window system includes an inward-opening and tilt-and-turn window sash and the aforementioned handle device. However, this solution still has the drawback that the end of the handle is prone to causing a rough feel when gripping it, and prolonged operation can easily lead to hand fatigue or even injury. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a comfortable inward-opening and inward-tilting handle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A comfortable inward-opening and inward-tilting handle includes a base and a rotatable handle body. The base has an installation space, and the handle body is provided with a main shaft. The installation space is provided with a high-strength locking element that can reciprocate linearly in the horizontal direction. Below the main shaft is a gear drive element for driving the high-strength locking element to reciprocate linearly in the horizontal direction. The end of the handle body has a rounded chamfer structure.

[0007] In the aforementioned comfortable inward-opening and inward-reversing grip, the arc chamfer structure includes an arc chamfer and a rounded portion located at the end of the handle body, the rounded portion being semi-circular.

[0008] In the aforementioned comfortable inward-opening, inward-reversing grip, the rounded chamfer and the rounded portion are connected by an arc-shaped transition surface.

[0009] In the aforementioned comfortable inward-opening and inward-reversing grip, the high-strength locking component includes a shift fork and a gear engagement portion disposed within the installation space. The shift fork extends downward outside the installation space, and the gear drive engages with the gear engagement portion.

[0010] In the aforementioned comfortable inward-opening and inward-reversing grip, the gear engagement part includes a connecting frame disposed on the top of the shift fork, and a plurality of toothed grooves are provided in the connecting frame, and the gear drive component meshes with the toothed grooves.

[0011] In the aforementioned comfortable inward-opening and inward-reversing grip, the connecting frame and the shift fork are integrally formed, and both the connecting frame and the shift fork are made of stainless steel.

[0012] In the aforementioned comfortable inward-opening and inward-reversing grip, a limiting and fixing horizontal plate is provided in the installation space, and the connecting frame slides in cooperation with the limiting and fixing horizontal plate.

[0013] In the aforementioned comfortable inward-opening and inward-reversing grip, the gear drive component includes a gear disposed between the limiting and fixing cross plate and the main shaft, and the gear meshes with the toothed groove.

[0014] In the aforementioned comfortable inward-opening and inward-reversing handle, the gear and the main shaft are connected by a countersunk hexagonal screw. The countersunk hexagonal screw passes through the main shaft, with one end fixed to the handle body and the other end fixed to the gear. A wave washer is provided on the main shaft.

[0015] In the aforementioned comfortable inward-opening and inward-reversing grip, the bottom of the base is provided with a cover plate, and a sliding groove is provided in the cover plate. The fork passes through the sliding groove and slides in cooperation with the sliding groove. The cover plate and the base are fixed together by bolts.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model transforms the traditional rigid right-angle edge into a continuous and smooth curved surface by constructing a unique rounded chamfer structure at the end of the handle body, which greatly improves the fit between the handle and the palm and significantly enhances the grip comfort; at the same time, the smooth appearance lines enhance the aesthetic value of the product.

[0018] 2. This utility model uses a high-strength locking component made of stainless steel in one piece, combined with a precision transmission mechanism driven by gears. Compared with traditional handles, it has significantly improved wear resistance and deformation resistance, effectively extending service life and reducing maintenance costs.

[0019] 3. This utility model uses multiple positioning designs such as limiting and fixing the horizontal plate and sliding groove guide to ensure that the locking parts move accurately without shaking, so as to achieve smooth and stable opening and closing of doors and windows and improve the user experience.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a structural schematic diagram of another aspect of this utility model.

[0023] Figure 3 This is a partial structural schematic diagram of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0025] In the diagram: 1. Base; 2. Handle body; 3. Installation space; 4. Main shaft; 5. High-strength locking fastener; 6. Gear drive component; 7. Rounded chamfer structure; 8. Rounded chamfer; 9. Arc transition surface; 10. Shift fork; 11. Gear mating part; 12. Connecting frame; 13. Toothed groove; 14. Limiting and fixing cross plate; 15. Gear; 16. Socket head cap countersunk screw; 17. Wave washer; 18. Cover plate; 19. Slide groove; 20. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, a comfortable inward-opening and inward-tilting handle includes a base 1 and a rotatable handle body 2. The base 1 has an installation space 3. The handle body 2 is provided with a main shaft 4. The installation space 3 is provided with a high-strength locking element 5 that can reciprocate linearly in the horizontal direction. Below the main shaft 4 is a gear drive element 6 for driving the high-strength locking element 5 to reciprocate linearly in the horizontal direction. The handle body 2 has a rounded chamfer structure 7 at its end.

[0028] In this embodiment, when the user rotates the handle body 2, the main shaft 4 drives the gear drive 6 to rotate, which in turn drives the high-strength locking element 5 to slide horizontally, realizing the inward opening, inward tilting or closing action of the door and window. In addition, the rounded chamfer structure 7 at the end of the handle body 2, through the rounded curved surface design, avoids the pressure on the palm of the hand at the end, and always maintains a comfortable grip during operation. This design combines functionality and comfort, and is highly practical.

[0029] Combination Figure 1-4 As shown, the rounded chamfer structure 7 includes a rounded chamfer 8 and a rounded portion 9 disposed at the end of the handle body 2, wherein the rounded portion 9 is semi-circular.

[0030] Specifically, the rounded chamfer structure 7 is further refined into a rounded chamfer 8 and a semi-circular rounded portion 9, which are connected by an arc-shaped transition surface 10. The rounded chamfer 8 softens the sharp edges at the end of the handle, while the rounded portion 9 simulates the natural curvature of human fingers. The arc-shaped transition surface 10 ensures a smooth and seamless transition between curved surfaces. This multi-layered curved surface design, compared to a single chamfer structure, can more comprehensively fit the palm and finger joints, reducing contact stress and improving grip comfort. At the same time, the continuous curved shape gives the product a soft and refined appearance, solving the problem of the stiff appearance of traditional handles.

[0031] Combination Figure 1 , Figure 2 As shown, the rounded chamfer 8 and the rounded portion 9 are connected by an arc-shaped transition surface 10.

[0032] In this embodiment, the curvature of the arc transition surface 10 between the rounded chamfer 8 and the rounded portion 9 has been precisely calculated and optimized to ensure a smooth and natural transition from the end of the handle body 2 to the rounded portion 9. This design not only avoids local stress concentration and distributes hand pressure evenly, but also enhances the overall integrity and smoothness of the product's appearance.

[0033] The high-strength locking component 5 includes a shift fork 11 and a gear engagement part 12 disposed in the installation space 3. The shift fork 11 extends downward to the outside of the installation space 3, and the gear drive component 6 meshes with the gear engagement part 12.

[0034] In this embodiment, when the gear drive component 6 rotates, it engages with the toothed structure of the gear mating part 12, driving the shift fork 11 to move horizontally, thereby driving the door and window transmission mechanism. Compared with the traditional linkage structure, this gear-shift fork transmission method has higher transmission efficiency and more precise operation; at the same time, the split design facilitates installation and maintenance, improving the practicality of the product.

[0035] Combination Figure 4 As shown, the gear engagement part 12 includes a connecting frame 13 disposed on the top of the shift fork 11. The connecting frame 13 has a plurality of toothed grooves 14, and the gear drive member 6 meshes with the toothed grooves 14.

[0036] In this embodiment, the connecting frame 13 of the gear mating part 12 is provided with a plurality of toothed grooves 14, which precisely mesh with the gear teeth of the gear drive 6. The connecting frame 13 and the shift fork 11 are integrally formed to ensure structural strength and transmission rigidity. The tooth profile parameters of the toothed grooves 14 have been optimized and designed so that they can achieve backlash-free transmission when meshing with the gear 16, avoiding operation misalignment or jamming caused by tooth backlash, and improving the stability and reliability of the handle operation.

[0037] The connecting frame 13 and the shift fork 11 are integrally formed, and both the connecting frame 13 and the shift fork 11 are made of stainless steel.

[0038] In this embodiment, the connecting frame 13 and the shift fork 11 are integrally formed from stainless steel. Compared with traditional plastic or ordinary metal materials, stainless steel has higher strength, hardness and corrosion resistance. During long-term use, it can effectively resist wear, deformation and oxidation corrosion, ensuring that the locking parts always maintain stable transmission performance and extending the overall service life of the handle. At the same time, the integral molding process reduces assembly links, reduces the risk of component loosening, and further improves product reliability.

[0039] The installation space 3 is provided with a limiting and fixing horizontal plate 15, and the connecting frame 13 slides in cooperation with the limiting and fixing horizontal plate 15.

[0040] In this embodiment, the limiting and fixing horizontal plate 15 in the installation space 3 slides in conjunction with the connecting frame 13. The limiting and fixing horizontal plate 15 is provided with a guide groove, and the two sides of the connecting frame 13 are embedded in the groove, restricting its movement direction to a horizontal straight line. This design prevents the high-strength locking fastener 5 from shifting or shaking during movement, ensuring stable meshing between the gear and the toothed locking groove, and improving transmission accuracy. At the same time, the limiting and fixing horizontal plate 15 can also serve as an installation support structure for the gear drive component 6, enhancing the assembly stability of the internal components.

[0041] Combination Figure 4 As shown, the gear drive component 6 includes a gear 16 disposed between the limiting and fixing horizontal plate 15 and the main shaft 4, and the gear 16 meshes with the toothed groove 14.

[0042] In this embodiment, the gear 16 of the gear drive component 6 is disposed between the limiting and fixing horizontal plate 15 and the main shaft 4, and is connected to the main shaft 4 by an internal hexagon countersunk screw 17. When the handle body 2 rotates, the main shaft 4 drives the gear 16 to rotate synchronously through the screw. The teeth of the gear 16 mesh with the toothed groove 14 of the connecting frame 13, converting the rotational motion of the handle into the horizontal linear motion of the high-strength locking component 5. Compared with traditional belt or chain drives, this gear transmission structure has advantages such as high transmission efficiency, compact structure, and no maintenance required.

[0043] Combination Figure 1 , Figure 4As shown, the gear 16 is connected to the main shaft 4 by a hexagonal countersunk screw 17. The hexagonal countersunk screw 17 passes through the main shaft 4, with one end fixed to the handle body 2 and the other end fixed to the gear 16. A wave washer 18 is provided on the main shaft 4.

[0044] In this embodiment, the main shaft 4 and the gear 16 are fixedly connected by a countersunk hexagonal socket head cap screw 17. The screw passes through the main shaft 4, with one end tightened to the handle body 2 and the other end connected to the gear 16. A wave washer 18 is fitted on the main shaft 4. When the screw is tightened, the wave washer 18 undergoes elastic deformation, providing a continuous axial preload to prevent the screw from loosening and the relative displacement between the main shaft 4 and the gear 16, ensuring the reliability of the transmission. This design effectively solves the problem of transmission failure caused by loose parts in traditional handles and enhances the durability of the product.

[0045] Combination Figure 1-2 As shown, the bottom of the base 1 is provided with a cover plate 19, and a sliding groove 20 is provided in the cover plate 19. The fork 11 passes through the sliding groove 20 and slides in cooperation with the sliding groove 20. The cover plate 19 is fixed to the base 1 by bolts.

[0046] In this embodiment, a groove 20 is formed in the cover plate 19 at the bottom of the base 1. The shift fork 11 passes through the groove 20 and slides with it. The cover plate 19 is fixed to the base 1 by bolts, forming a closed installation space 3. The groove 20 provides horizontal guidance for the shift fork 11, ensuring its precise movement trajectory, while preventing dust and foreign objects from entering the installation space 3 and protecting the internal transmission components. This structural design not only improves the dustproof performance of the handle, but also simplifies the installation and disassembly process of the shift fork 11, facilitating later maintenance.

[0047] The working principle of this utility model is as follows:

[0048] When the user rotates the handle body 2, the main shaft 4, driven by the handle, drives the gear 16 to rotate through the hexagonal countersunk screw 17. The gear 16 meshes with the toothed groove 14 of the high-strength locking component 5, converting the rotational motion into horizontal linear motion of the connecting frame 13 and the shift fork 11. The shift fork 11 slides along the slide groove 20 of the cover plate 19, driving the internal transmission mechanism of the door and window to achieve the functions of opening, tilting, or closing. During this process, the limiting and fixing plate 15 and the slide groove 20 together ensure that the movement of the locking component is stable and without deviation. The rounded chamfer structure 7 at the end of the handle body 2 always fits the palm, providing a comfortable grip experience. The high-strength locking component 5 made of stainless steel ensures the structural strength and transmission reliability under long-term use, achieving efficient, stable, and comfortable operation.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0050] Although this document frequently uses terms such as base 1, handle body 2, mounting space 3, spindle 4, high-strength locking component 5, gear drive component 6, rounded chamfer structure 7, rounded chamfer 8, rounded part 9, arc transition surface 10, shift fork 11, gear mating part 12, connecting frame 13, toothed groove 14, limiting and fixing cross plate 15, gear 16, internal hexagon countersunk screw 17, wave washer 18, cover plate 19, and slide groove 20, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A comfortable, inward-opening, inward-tilting handle, comprising a base (1) and a rotatable handle body (2), characterized in that, The base (1) has an installation space (3), the handle body (2) is provided with a main shaft (4), the installation space (3) is provided with a high-strength locking element (5) that can reciprocate linearly in the horizontal direction, the main shaft (4) is provided with a gear drive element (6) for driving the high-strength locking element (5) to reciprocate linearly in the horizontal direction, and the handle body (2) has a rounded chamfer structure (7) at the end.

2. The inward-opening, inward-tilting handle with a comfortable grip according to claim 1, characterized in that, The rounded chamfer structure (7) includes a rounded chamfer (8) and a rounded portion (9) located at the end of the handle body (2), the rounded portion (9) being semi-circular.

3. The inward-opening, inward-tilting handle with a comfortable grip according to claim 2, characterized in that, The rounded chamfer (8) and the rounded portion (9) are connected by an arc-shaped transition surface (10).

4. The inward-opening, inward-tilting handle with a comfortable grip according to claim 1, characterized in that, The high-strength locking member (5) includes a shift fork (11) and a gear engagement part (12) disposed in the installation space (3). The shift fork (11) extends downward to the outside of the installation space (3), and the gear drive member (6) meshes with the gear engagement part (12).

5. A comfortable inward-opening, inward-tilting handle according to claim 4, characterized in that, The gear engagement part (12) includes a connecting frame (13) disposed on the top of the shift fork (11). The connecting frame (13) has a plurality of toothed grooves (14) inside, and the gear drive (6) meshes with the toothed grooves (14).

6. The inward-opening, inward-tilting handle with a comfortable grip according to claim 5, characterized in that, The connecting frame (13) and the shift fork (11) are integrally formed, and both the connecting frame (13) and the shift fork (11) are made of stainless steel.

7. A comfortable inward-opening, inward-tilting handle according to claim 5, characterized in that, The installation space (3) is provided with a limiting and fixing horizontal plate (15), and the connecting frame (13) slides in cooperation with the limiting and fixing horizontal plate (15).

8. A comfortable inward-opening, inward-tilting handle according to claim 7, characterized in that, The gear drive component (6) includes a gear (16) disposed between the limiting and fixing horizontal plate (15) and the main shaft (4), and the gear (16) meshes with the toothed groove (14).

9. A comfortable inward-opening, inward-tilting handle according to claim 8, characterized in that, The gear (16) is connected to the main shaft (4) by a hexagonal countersunk screw (17). The hexagonal countersunk screw (17) passes through the main shaft (4), with one end fixed to the handle body (2) and the other end fixed to the gear (16). A wave washer (18) is provided on the main shaft (4).

10. A comfortable inward-opening, inward-tilting handle according to claim 4, characterized in that, The base (1) has a cover plate (19) at the bottom, and a sliding groove (20) is provided in the cover plate (19). The fork (11) passes through the sliding groove (20) and slides in cooperation with the sliding groove (20). The cover plate (19) is fixed to the base (1) by bolts.

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