A two-stage positioning handle with hierarchical damping

Abstract

The application discloses a hierarchical damping two-stage positioning handle, which comprises a base, a handle body, a square shaft, a fixing seat and two groups of damping components, coaxial inner ring positioning grooves and outer ring positioning grooves are arranged on the fixing seat, the number of the inner ring positioning grooves is an integer multiple of that of the outer ring positioning grooves, the two groups of damping components are respectively matched with corresponding positioning grooves, hierarchical positioning damping is realized through elastic clamping, the damping component comprises a spring and a pair of steel balls, a wear-resistant coating is arranged on the surface of the steel ball, a mounting shell with a deformation groove and a limiting ring are arranged in a matched mode, the mounting shell is inserted into a base slot and the tightness of cooperation is improved through the deformation groove, the two-stage positioning of the outer ring coarse adjustment and the inner ring fine adjustment is adopted, the adjustment efficiency and the accuracy are considered, the damping feedback is layered and delicate, the structure is stable, the installation and maintenance are convenient, the whole is compact and simple, and the problem of single gear, hard hand feeling and easy loosening of the traditional handle is solved.

Description

Technical Field

[0001] This utility model relates to the field of door and window hardware accessories, specifically to a graded damping dual-positioning handle. Background Technology

[0002] As the core control component for opening and closing doors and windows, the positioning accuracy, damping feel, and scene adaptability of door and window handles directly affect the user experience. With the increasing demand for minimalist aesthetics and multifunctionality in modern architecture, baseless or concealed base handles have become the mainstream development direction. Related technologies are constantly being optimized to solve problems such as exposed bases, easy wear, and inaccurate positioning of traditional handles.

[0003] Among existing technologies, the utility model patent with publication number CN217783151U (a baseless handle with a damping mechanism) is the closest prior art. This technology achieves damping and positioning functions when the handle rotates through the cooperation of a damping seat, an elastic positioning component (reset spring + positioning steel ball), and a positioning pad, thus avoiding the problem of handle spinning freely to a certain extent. However, this prior art still has obvious shortcomings: First, it only sets a single set of positioning groove structures, and the number of positioning positions is fixed and singular, which can only meet the positioning requirements of the basic opening angle and cannot achieve fine adjustment of the opening angle of doors and windows, making it difficult to adapt to diverse usage scenarios such as large-angle ventilation and small-angle micro-ventilation; Second, the damping feedback is a single intensity, lacking graded tactile adjustment, so when the handle rotates, either the resistance is too small, resulting in unstable positioning, or the resistance is too large, affecting the smoothness of operation; Third, the cooperation method between the positioning groove and the elastic component is singular, only providing a single level of positioning and locking, which is prone to slight displacement when the door and window are subjected to external force vibration, and the structural stability needs to be improved.

[0004] In addition, while other existing handle technologies (such as CN217300148U and CN220522238U) have optimized issues such as base concealment and ease of installation, none of them have been designed for "graded positioning accuracy" and "layered damping feel". They generally suffer from common defects such as few positioning positions, insufficient adjustment accuracy, and a monotonous user operation experience, making it difficult to meet the comprehensive needs of modern users for multifunctional, high-precision, and delicate feel door and window handles. Summary of the Invention

[0005] This utility model aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a graded damping dual-positioning handle, including a base, a handle, a square shaft, a fixed seat, and damping components. The damping components are set in two sets to provide graded positioning damping for the rotation of the handle body. The fixed seat is coaxially provided with several inner ring positioning grooves and outer ring positioning grooves, and the number of inner ring positioning grooves is an integer multiple of the number of outer ring positioning grooves. The two sets of damping components are respectively adapted to the inner ring positioning grooves and the outer ring positioning grooves, and the graded positioning and damping feedback of the handle rotation are realized through elastic engagement.

[0007] Each damping assembly includes a spring and a pair of steel balls. The spring elastically pushes the steel balls to engage with the corresponding inner or outer ring positioning groove.

[0008] The steel balls are made of stainless steel or bearing steel, and the surface of the steel balls is coated with a wear-resistant coating.

[0009] It also includes a mounting base and several slots. The slots are opened inside the base, and several mounting shells are fixed on the mounting base. Each mounting shell is inserted into the corresponding slot and is used to accommodate the corresponding spring and steel ball.

[0010] A deformation groove extending along its own axis is provided on one side of the mounting shell.

[0011] A limiting ring is provided at the end of the mounting housing facing the fixed base to prevent the steel ball from detaching from the mounting housing.

[0012] Both the inner and outer ring positioning grooves have arc-shaped cross-sections, and the groove edges are chamfered.

[0013] The number of inner ring positioning grooves is 2-4 times the number of outer ring positioning grooves.

[0014] The handle body and the square shaft are fixedly connected to the mounting base by a key or interference fit.

[0015] The inner ring positioning groove is formed on the inner ring of the surface of the fixed seat facing the handle, and the outer ring positioning groove is formed on the periphery of the fixed seat.

[0016] The beneficial effects of this utility model are as follows: 1. By coaxially setting inner and outer positioning grooves, with the number of inner positioning grooves being an integer multiple of the number of outer positioning grooves, a two-level positioning system of "coarse adjustment + fine adjustment" is constructed. The outer positioning groove enables rapid alignment of basic positions such as fully open and half open doors and windows, while the inner positioning groove provides precise calibration for small-angle subdivision positions. This solves the shortcomings of existing technologies that offer only one positioning position and cannot finely adjust the opening angle, making it suitable for diverse usage scenarios such as large-angle ventilation, child safety locks, and micro-ventilation.

[0017] 2. The two sets of damping components are respectively adapted to the inner and outer ring positioning grooves, and through differentiated spring preload design, they create layered damping feedback when the handle rotates—the inner ring fine-tuning setting corresponds to gentle damping, resulting in smooth and effortless operation; the outer ring coarse-tuning setting corresponds to clear damping, providing precise positioning feedback. This avoids the problems of single damping strength, stiff feel, or free-spinning found in existing technologies, significantly improving the user's operating experience.

[0018] 3. The synergistic engagement of the double-ring positioning groove and the two sets of damping components forms a double locking and limiting structure, making it less prone to displacement when the door and window are subjected to external vibrations, and significantly improving positioning stability compared to the existing single positioning structure; the inner and outer ring positioning grooves adopt an arc-shaped cross-section and chamfer design, combined with stainless steel or bearing steel balls with wear-resistant coating, reducing component friction wear and extending the service life of the handle; at the same time, the mounting shell fits tightly with the base slot through the deformation groove, further improving the assembly firmness of the overall structure and preventing loosening after long-term use.

[0019] 4. The ratio of the number of positioning grooves between the inner and outer rings can be flexibly adjusted (e.g., 2-4 times). The number of basic and subdivided positions can be customized according to the usage needs of different door and window types (bedroom windows, balcony windows, office windows, etc.), making it more adaptable. The damping component is inserted into the base slot through the mounting shell. No complicated tools are required for disassembly and assembly, which facilitates subsequent maintenance and component replacement. This solves the problem of cumbersome installation and inconvenient maintenance of some existing handle damping components.

[0020] 5. The structural design of this application is simplified, with no additional exposed base or redundant components. The differentiated layout of the inner and outer ring positioning grooves optimizes the space utilization of the fixing seat, making the overall structure of the handle compact, in line with the minimalist aesthetic trend of modern architecture, and taking into account both functional practicality and aesthetic appearance. Attached Figure Description

[0021] Figure 1 This is a perspective view of the handle in an embodiment of this application; Figure 2 This is a front view of the handle in an embodiment of this application; Figure 3 for Figure 2 Schematic diagram of the cross-section structure in the AA direction; Figure 4 This is a perspective view of the relative positions of the damping components in the base in the embodiments of this application; Figure 5 This is a perspective view of the mounting base in an embodiment of this application; Figure 6 This is a perspective view of the mounting base, damping component, fixing base, and square shaft assembly in the embodiments of this application; Figure 7 This is a perspective view of the mounting base, damping assembly, and square shaft assembly state in the embodiments of this application.

[0022] Figure Labels 1-Base, 2-Handle body, 3-Square shaft, 4-Fixed seat, 5-Damping assembly, 6-Inner ring positioning groove, 7-Outer ring positioning groove, 8-Spring, 9-Steel ball, 10-Mounting seat, 11-Slot, 12-Mounting shell, 13-Deformation groove, 14-Limiting ring. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] The handle provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0026] Example 1 This application provides a graded damping dual-positioning handle, including a base 1, a handle body 2, a square shaft 3, a fixed seat 4, and damping components 5. The damping components 5 are arranged in two sets to provide graded positioning damping for the rotation of the handle body 2. The fixed seat 4 is coaxially provided with several inner ring positioning grooves 6 and outer ring positioning grooves 7, and the number of inner ring positioning grooves 6 is an integer multiple of the number of outer ring positioning grooves 7. The two sets of damping components 5 are respectively adapted to the inner ring positioning grooves 6 and the outer ring positioning grooves 7, achieving graded positioning and damping feedback for the rotation of the handle body 2 through elastic engagement. Figures 1 to 7As shown, due to the aforementioned structure, when the handle body 2 rotates, it can achieve a graded positioning damping function of "coarse adjustment + fine adjustment" by elastically engaging with the inner ring positioning groove 6 and the outer ring positioning groove 7 through two sets of damping components 5 respectively. The design of an integer multiple of the number of inner ring positioning grooves 6 and outer ring positioning grooves 7 allows the handle body 2 to quickly align with the basic position corresponding to the outer ring positioning groove 7, such as fully open or half open doors and windows, and to achieve precise fine-tuning of small angles through the subdivided positions of the inner ring positioning groove 6, balancing adjustment efficiency and control precision. At the same time, the two sets of damping components 5 work independently, with clear damping feedback and no interference between them, avoiding the problems of single positioning positions and stiff adjustment feel of traditional handles, and significantly improving the user's operating experience.

[0027] Example 2 In this embodiment, in addition to the structural features of the aforementioned embodiments, each damping assembly 5 includes a spring 8 and a pair of steel balls 9. The spring 8 elastically pushes the steel balls 9 to engage with the corresponding inner ring positioning groove 6 or outer ring positioning groove 7. In this embodiment of the application, the steel balls 9 are made of stainless steel or bearing steel, and the surface of the steel balls 9 is provided with a wear-resistant coating. Figures 4 to 7 As shown, due to the above structure, the spring 8 elastically pushes the paired steel balls 9 into the inner ring positioning groove 6 or the outer ring positioning groove 7, making the steel balls 9 more evenly stressed and more closely fitted to the positioning groove. This significantly improves the stability of the graded positioning. The steel balls 9, made of stainless steel or bearing steel and with a wear-resistant coating on the surface, not only enhance the structural strength of the steel balls 9 but also effectively resist friction, wear, and environmental corrosion. This prevents the damping component 5 from failing and becoming inaccurate in positioning due to wear of the steel balls 9 after long-term use, significantly extending the service life of the handle and making it suitable for high-frequency opening and closing scenarios of doors and windows.

[0028] Example 3 In this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a mounting base 10 and a plurality of slots 11. The slots 11 are formed within the base 1, and a plurality of mounting shells 12 are fixedly mounted on the mounting base 10. Each mounting shell 12 is inserted into a corresponding slot 11 and is used to accommodate a corresponding spring 8 and steel ball 9. In this embodiment of the application, a deformation groove 13 extending along its own axis is formed on one side of the mounting shell 12. Figure 5 As shown, due to the above structure, the mounting shell 12 is inserted into the slot 11 of the base 1, making the assembly process of the spring 8 and the steel ball 9 more convenient. The installation and replacement of the damping component 5 can be completed without complicated tools. The deformation groove 13 extending along its own axis on the mounting shell 12 can provide elastic deformation space. When inserted into the slot 11, the deformation groove 13 allows the mounting shell 12 to shrink slightly to adapt to the size of the slot 11, reducing assembly resistance. After insertion, the outer wall of the mounting shell 12 is tightly fitted to the inner wall of the slot 11 through elastic reset, which significantly improves the tightness of the fit between the two and avoids loosening or gaps caused by vibration during long-term use.

[0029] Example 4 In this embodiment, in addition to the structural features of the aforementioned embodiments, a limiting ring 14 is provided at one end of the mounting shell 12 facing the fixing base 4 to prevent the steel ball 9 from detaching from the mounting shell 12. Figure 5 As shown, due to the above structure, the limiting ring 14 effectively avoids the risk of the steel ball 9 detaching from the mounting shell 12 when the handle body 2 rotates at high speed or is impacted by external force by limiting the displacement range of the steel ball 9; it ensures that the damping component 5 always maintains a complete working state and will not cause the graded positioning function to fail due to the steel ball 9 falling off, thus ensuring the continuity and reliability of the handle operation, while eliminating the need for additional protective structures and simplifying the overall assembly complexity.

[0030] Example 5 In this embodiment, in addition to the structural features of the aforementioned embodiments, the cross-sections of both the inner ring positioning groove 6 and the outer ring positioning groove 7 are arc-shaped, and the edges of the groove openings are chamfered. For example... Figure 7 As shown, due to the above structure, the inner ring positioning groove 6 with the arc-shaped cross-section has surface contact with the outer ring positioning groove 7 and the steel ball 9, resulting in more uniform force distribution and reduced local stress concentration. The chamfered design of the groove edge makes the steel ball 9 switch between positioning grooves more smoothly, avoiding jamming or sticking, and making the rotation of the handle body 2 more delicate and smooth. At the same time, the chamfer can also reduce the frictional wear between the steel ball 9 and the groove, further extending the service life of the component and improving the stability of damping positioning.

[0031] Example 6 In this embodiment, in addition to the structural features included in the aforementioned embodiments, the number of inner ring positioning grooves 6 is 2-4 times the number of outer ring positioning grooves 7. In this embodiment, in addition to the structural features included in the aforementioned embodiments, the number of inner ring positioning grooves 6 is 12, and the number of outer ring positioning grooves 7 is 4. For example... Figure 7 As shown, due to the above structure, the 2-4 times quantity gradient design precisely matches the functional requirements of "coarse adjustment + fine adjustment". The combination of 12 inner ring positioning grooves 6 and 4 outer ring positioning grooves 7 means that for every basic position of the outer ring positioning groove 7, the inner ring positioning groove 6 corresponds to 3 subdivided positions, and the adjustment accuracy of the door and window opening angle can reach a smaller range. The rich number of positions can cover different usage scenarios such as large-angle ventilation, small-angle micro-ventilation, child safety lock, etc., solving the problem of the traditional handle having few positions and being unable to meet diverse adjustment needs.

[0032] Example 7 In this embodiment, in addition to the structural features of the aforementioned embodiments, the handle body 2 and the square shaft 3 are fixedly connected to the fixing base 4 via a key connection structure or an interference fit structure. For example... Figure 3As shown, due to the above-mentioned structure, the key connection structure or interference fit structure ensures the firmness of the connection between the handle body 2 and the square shaft 3 and the fixed seat 4, and avoids relative slippage or loosening when the handle body 2 rotates; it enables the rotational driving force of the handle body 2 to be accurately and synchronously transmitted to the square shaft 3, thereby driving the door and window lock box to complete the opening and closing action, ensuring the stability of transmission efficiency, reducing frictional loss at the connection parts, and improving the overall structural reliability of the handle.

[0033] Example 8 In this embodiment, in addition to the structural features of the aforementioned embodiments, the inner ring positioning groove 6 is formed on the inner ring of the surface of the fixing base 4 facing the handle body 2, and the outer ring positioning groove 7 is formed on the periphery of the fixing base 4. Figure 7 As shown, due to the above structure, the layout of the inner ring positioning groove 6 and the outer ring positioning groove 7 avoids the risk of component interference. The inner ring positioning groove 6 of the fixed seat 4 facing the inner ring of the handle body 2 can cooperate closely with the damping component 5 on the handle side, making the positioning feedback more sensitive. The outer ring positioning groove 7 on the periphery of the fixed seat 4 can make full use of the radial space, expand the distribution range of the positioning groove, and make the interval of the basic gear more reasonable. The differentiated layout of the double ring positioning grooves not only ensures the realization of the graded positioning function, but also optimizes the space utilization of the fixed seat 4, making the overall structure of the handle more compact and in line with the aesthetic needs of modern minimalism.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A graded damping dual-stage positioning handle, comprising a base, a handle, a square shaft, a fixed base, and a damping assembly, characterized in that, The damping components are configured in two sets to provide graded positioning damping for the rotation of the handle body. The fixed base is coaxially provided with several inner ring positioning grooves and outer ring positioning grooves, and the number of inner ring positioning grooves is an integer multiple of the number of outer ring positioning grooves. The two sets of damping components are respectively adapted to the inner ring positioning grooves and the outer ring positioning grooves, and the graded positioning and damping feedback of the handle rotation are realized through elastic engagement.

2. The graded damping dual-stage positioning handle according to claim 1, characterized in that, Each damping assembly includes a spring and a pair of steel balls, the spring elastically pushing the steel balls to engage with the corresponding inner or outer ring positioning groove.

3. The graded damping dual-stage positioning handle according to claim 2, characterized in that, The steel balls are made of stainless steel or bearing steel, and the surface of the steel balls is coated with a wear-resistant coating.

4. A graded damping dual-stage positioning handle according to claim 2, characterized in that, It also includes a mounting base and several slots, the slots being formed within the base, and several mounting shells being fixed on the mounting base, each mounting shell being inserted into a corresponding slot and used to accommodate a corresponding spring and steel ball.

5. A graded damping dual-stage positioning handle according to claim 4, characterized in that, A deformation groove extending along its own axis is provided on one side of the mounting shell.

6. A graded damping dual-stage positioning handle according to claim 4, characterized in that, The mounting shell has a limiting ring at one end facing the fixed base to prevent the steel ball from detaching from the mounting shell.

7. A graded damping dual-stage positioning handle according to claim 1, characterized in that, Both the inner and outer ring positioning grooves have arc-shaped cross-sections, and the groove edges are chamfered.

8. A graded damping dual-stage positioning handle according to claim 1, characterized in that, The number of inner ring positioning grooves is 2-4 times the number of outer ring positioning grooves.

9. A graded damping dual-stage positioning handle according to claim 1, characterized in that, The handle body and the square shaft are fixedly connected to the fixed base by a key or an interference fit.

10. A graded damping dual-stage positioning handle according to claim 1, characterized in that, The inner ring positioning groove is formed on the inner ring of the surface of the fixed base facing the handle, and the outer ring positioning groove is formed on the periphery of the fixed base.

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