Door handle structure and door lock
By designing the housing, pivot base, gasket, and convex bulge, and combining high-strength steel with heat treatment processes, the problem of easy deformation of lock handles under high-intensity use is solved, resulting in a stable and durable lock handle structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-20
AI Technical Summary
Existing lock handles are prone to deformation or damage when subjected to large tensile or compressive forces, failing to meet the requirements of high-intensity use and posing safety hazards.
The design employs a shell, pivot base, gasket, convex bulge, and screw connection to form a stable force transmission path. Combined with S50C or 65Mn steel and heat treatment process to enhance the rigidity of the pivot base, the force is evenly transmitted through the gasket and convex bulge, ensuring the stability and durability of the handle.
It significantly improves the handle's tensile or compressive strength, prevents deformation and wear, ensures structural stability, meets the national standard requirement of 1600N, extends service life, and enhances safety.
Smart Images
Figure CN224016983U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of lockset, especially relates to a door handle structure and door lock. BACKGROUND
[0002] The door lock commonly used in the market at present generally includes a lock core part and a door handle part, the lock core part is usually installed inside a door panel, and the door handle part is installed outside the door panel. The door handle part is generally composed of a shell, a handle and a clutch, the clutch is fixedly installed inside the shell, the clutch is connected with the handle, when the clutch is engaged, the handle can be driven to complete the unlocking action by being pressed down or pulled up, and the handle will rebound to the original position under the reset action of the clutch, and the clutch is also separated at the same time.
[0003] Many locksets on the market are prone to deformation or even damage when the handle bears a large pulling force or pressure. For example, on the doors of some public buildings, the handle needs to bear a large external force due to frequent opening and closing operations. The handle structure of ordinary locksets often cannot meet the high-strength use requirements, and after being used for a period of time, the handle may be loose or broken, which not only affects the normal use of the lockset, but also may cause safety hazards. The pulling force or pressure strength of some lockset handles can only reach a few hundred Newton, which is far from meeting the large external force that may be encountered in actual use. SUMMARY
[0004] In view of the above problems existing in the prior art, the utility model provides a door handle structure, which comprises:
[0005] A shell forms a containing cavity, a first through hole and a plurality of second threaded holes are arranged on the shell, the first through hole is arranged at the middle position of the shell, and the plurality of second threaded holes are arranged around the first through hole;
[0006] A rotating shaft base comprises a middle protrusion, a main body surface and an edge screw surface, the middle protrusion is arranged on the main body surface, the protruding direction of the middle protrusion is away from the shell, a third threaded hole is arranged on the part of the middle protrusion close to the shell, and the third threaded hole corresponds to the first through hole; a plurality of fourth threaded holes are arranged on the edge screw surface, the plurality of fourth threaded holes correspond to the positions of the plurality of second threaded holes, the edge screw surface is connected with the main body surface through a curved surface, the edge screw surface is close to the shell when being installed, and a certain spacing exists between the main body surface and the shell;
[0007] A gasket is sleeved on the middle protrusion;
[0008] A rotating shaft assembly is arranged on the middle protrusion;
[0009] A handle is arranged on the rotating shaft assembly, and the handle is in contact with the gasket near the edge of the shell in the direction of the handle;
[0010] A first screw is arranged in the first through hole and the third threaded hole;
[0011] A plurality of second screws are arranged in the second threaded hole and the fourth threaded hole.
[0012] Optionally, the shell is provided with a plurality of convex blocks corresponding to the plurality of second threaded holes, the convex blocks are arranged in the direction of the handle, and the edge screw surface is attached to the convex blocks.
[0013] Optionally, the rotating shaft base is made of S50C or 65Mn steel, and the rotating shaft base is strengthened in hardness through a heat treatment process.
[0014] Optionally, the gap between the main body surface and the shell is 2-5mm±0.5mm.
[0015] Optionally, the convex blocks are semispherical, the height of the convex blocks is 3-5mm, the diameter of the convex blocks is 8-10mm, and the number of the convex blocks is four.
[0016] Optionally, the handle, the rotating shaft base and the rotating shaft assembly are fixed through the first screw, and the rotating shaft assembly is fixed to the metal shell through the second screw.
[0017] Optionally, the rotating shaft assembly is provided with a reset torsion spring, and the rotating shaft assembly can return to the original state when the force of the handle is removed.
[0018] Optionally, the shell is formed by stamping.
[0019] Optionally, the handle is provided with an identification module.
[0020] In addition, the utility model also provides a door lock using the door handle structure.
[0021] The technical scheme of the utility model has the following advantages or beneficial effects:
[0022] The door handle structure provided by the application is characterized by comprising: a shell forming a containing cavity, the shell being provided with a first through hole and a plurality of second threaded holes, the first through hole being arranged at a middle position of the shell, and the plurality of second threaded holes being arranged around the first through hole; a rotating shaft base comprising a middle protrusion, a main body surface and an edge screw surface, the middle protrusion being arranged on the main body surface, the protruding direction of the middle protrusion being away from the shell, a third threaded hole being present on the part of the middle protrusion close to the shell, and the third threaded hole corresponding to the first through hole; a plurality of fourth threaded holes being arranged on the edge screw surface, the plurality of fourth threaded holes corresponding to the positions of the plurality of second threaded holes, the edge screw surface being connected to the main body surface through a curved surface, the edge screw surface being installed close to the shell, and a certain distance being present between the main body surface and the shell; a gasket being sleeved on the middle protrusion; a rotating shaft assembly being arranged on the middle protrusion; a handle being sleeved on the rotating shaft assembly, the handle being close to the edge of the shell at the joint with the gasket; a first screw being penetrated through the shell and installed in the first through hole and the third threaded hole; and a plurality of second screws being installed in the second threaded holes and the fourth threaded holes. The door handle structure provided by the application forms a stable and orderly mechanical transmission path through the gasket, the hardened rotating shaft assembly base and the convex bump on the metal shell, ensures uniform and stable conduction of force, significantly improves the bearing capacity of the handle pulling force or pressure, and effectively protects the rotating shaft assembly from deformation and reduces the wear of components; the components are connected through screws, the structure is stable, the hardened base, the convex bump and the gasket improve the handle pulling force or pressure, and the structure can meet the national standard requirement of 1600N. BRIEF DESCRIPTION OF DRAWINGS
[0023] Reference will be made to the accompanying drawings to more fully describe the embodiments of the present application. However, the accompanying drawings are only used for illustration and explanation, and do not constitute a limitation on the scope of the present application.
[0024] Figure 1 It is a schematic view of the components of the door handle structure of the present application.
[0025] Figure 2 It is a sectional view of the door handle structure of the present application.
[0026] Illustration:
[0027] 1, shell; 2, first through hole; 3, second threaded hole; 4, rotating shaft base; 5, fourth threaded hole;
[0028] 6, gasket; 7, rotating shaft assembly; 8, handle; 9, first screw; 10, second screw; 11, convex bump. DETAILED DESCRIPTION
[0029] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized by many other different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0030] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0031] In the description of the utility model, unless otherwise defined, all the technical and scientific terms used by the utility model are the same as the meanings commonly understood by the person skilled in the art belonging to the technical field of the utility model. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0032] In the description of the utility model, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise specifically defined.
[0033] Overall structure: the door handle structure provided by the utility model mainly consists of the following components: 1, shell; 2, first through hole; 3, second threaded hole; 4, shaft base; 5, fourth threaded hole; 6, gasket; 7, shaft assembly; 8, handle; 9, first screw; 10, second screw; 11, convex hull.
[0034] Shell (1): a containing cavity is formed, which is used for containing other components. On the shell (1), a first through hole (2) and a plurality of second threaded holes (3) are arranged. The first through hole (2) is located at the middle position of the shell (1), and the plurality of second threaded holes (3) are distributed around the first through hole (2). This layout design provides convenience for the installation and connection of subsequent components. In the embodiment, the number of second threaded holes is 4, which are distributed in a rectangular shape.
[0035] The rotating shaft base (5) includes a middle protrusion, a main body surface and an edge screw surface. The middle protrusion is arranged on the main body surface and protrudes away from the shell (1). A third threaded hole is arranged on the part of the middle protrusion close to the shell (1), and the third threaded hole corresponds to the first through hole (2) on the shell (1). A plurality of fourth threaded holes (5) are arranged on the edge screw surface, and the fourth threaded holes (5) correspond to the plurality of second threaded holes (3) on the shell (1) one by one. The edge screw surface is connected to the main body surface through an arc surface. When installed, the edge screw surface is close to the shell (1), and the main body surface has a certain spacing with the shell (1). Such a design can ensure that the rotating shaft base (4) has a proper position and space after installation. It also ensures that the force transmitted by the handle can be transmitted to the rotating shaft base and then to the edge screw surface and the shell.
[0036] The gasket (6) is sleeved on the middle protrusion and plays an important role in the mechanical transmission process of the door handle structure. It is usually made of high-strength, wear-resistant and flexible rubber or engineering plastic. In terms of shape, it is a circular sheet with a circular hole in the middle that fits tightly on the middle protrusion. The outer diameter of the gasket is carefully designed to ensure that it can fully receive the force transmitted by the handle without affecting the compactness of the entire door handle structure. In the mechanical transmission process, the gasket plays a crucial role in buffering and force transmission. On the one hand, when the handle is subjected to tension or pressure, the gasket can effectively buffer the instantaneous impact force, preventing excessive force from directly acting on the rotating shaft assembly base, thereby protecting the base and prolonging its service life. On the other hand, it uniformly and stably transmits the force of the handle to the rotating shaft assembly base, ensuring smooth and efficient force transmission.
[0037] Further, the door handle structure also includes protrusions, which are located on the shell and number four, and are in the shape of a hemisphere, which can uniformly disperse the pressure received and avoid stress concentration that may damage the door handle structure. The height of the protrusions is between 3-5mm, and the diameter is in the range of 8-10mm. The protrusions have a circular truncated cone structure. Such dimensions are carefully designed to ensure that the protrusions have sufficient strength to transmit force without affecting the overall performance of the door handle structure. These protrusions are respectively arranged corresponding to the plurality of second threaded holes, and the protrusions protrude towards the handle. When the door handle is working, the force applied by the handle is transmitted to the metal shell through the gasket and the rotating shaft assembly base, and then transmitted to the door by the protrusions. Since the protrusions are arranged corresponding to the second threaded holes, the force transmission path is more reasonable, which can more efficiently transmit the force to the door, ensuring the smoothness of the entire mechanical transmission path, effectively preventing the rotating shaft assembly from deforming due to stress, ensuring the normal operation of the handle reset function, and greatly prolonging the service life and stability of the door handle.
[0038] Furthermore, the pivot base is made of S50C or 65Mn steel, and its hardness is enhanced through heat treatment. In existing door handle structures, the failure of the handle's reset function due to deformation of the pivot assembly under stress is a common occurrence. This is mainly because the pivot assembly cannot withstand excessive pressure during force transmission, lacking effective support and strength assurance. To solve this key problem, this door handle structure has been carefully designed in terms of material selection and processing technology for the pivot base. The pivot base is made of S50C or 65Mn steel. S50C steel has high strength and toughness, and good comprehensive mechanical properties; 65Mn steel has a high elastic limit and yield strength, and can obtain better comprehensive performance after heat treatment. Both types of steel can provide a solid foundation for the pivot base, giving it strong compressive strength and effectively resisting the large forces transmitted by handle operation, thus ensuring the stability of the pivot base under complex stress conditions.
[0039] Furthermore, the hinge base is further strengthened through heat treatment. Heat treatment alters the internal structure of the steel, significantly improving its hardness, strength, and other properties. After heat treatment, the hinge base's hardness increases substantially, allowing it to better maintain its shape when bearing the forces transmitted by the handle, reducing the possibility of deformation. This ensures a more stable transmission of force to the metal housing and subsequent components during door handle operation, effectively preventing uneven stress and deformation of the hinge assembly caused by hinge base deformation. This, in turn, ensures the normal operation of the handle's reset function, extends the overall lifespan of the door handle, and enhances the reliability and stability of the door handle structure.
[0040] The gap between the main body of the pivot base and the housing is 2-5mm ± 0.5mm. This gap design has several important effects. On the one hand, the appropriate gap provides the pivot base with sufficient room to move during force transmission, avoiding excessive frictional resistance caused by direct and tight contact with the housing, thus ensuring the flexibility of the handle operation and providing users with a smooth operating experience. On the other hand, this gap acts as a buffer to some extent. When the handle is subjected to a large impact, the gap can alleviate the instantaneous pressure, reducing the direct impact on the pivot base and housing, further enhancing the durability of the door handle structure. At the same time, the strictly controlled tolerance range ensures the consistency and stability of each door handle structure, ensuring that mass-produced door handles have good performance.
[0041] In terms of connection and fixation, the handle, the shaft base and the shaft assembly are fixed by the first screw. This fixing method forms a stable connection system, ensuring that the force can be accurately transmitted to the shaft assembly and the shaft base when the handle is operated. The tightening effect of the first screw enables the three key components to work closely together, avoiding loosening and displacement during use, and ensuring the reliability of the door handle operation. The shaft assembly is further fixed to the metal shell by the second screw, further stabilizing the entire door handle structure. The installation position and tightening force of the second screw are precisely designed, so that the shaft assembly can still be stably connected with the metal shell within a limited angle, providing a solid support for the normal use of the door handle.
[0042] A reset torsional spring is arranged in the shaft assembly, which is the core component for realizing the handle reset function. When the user operates the handle to apply force, the reset torsional spring stores elastic potential energy. Once the handle force is removed, the elastic potential energy stored in the reset torsional spring is released, driving the shaft assembly to return to the original state, and then driving the handle back to the initial position. The design of the reset torsional spring cleverly utilizes the principle of elasticity, ensuring that the door handle can automatically reset after use, greatly improving the convenience of use for the user and the practicality of the door handle, and also reducing the problems such as collision and damage that may be caused by the handle not being reset.
[0043] In the manufacturing process, the shaft base and the shell are formed by stamping. The stamping process has the characteristics of high efficiency and high precision. Through die stamping, the raw materials can be quickly processed into the required shape, greatly improving the production efficiency and reducing the production cost, which is suitable for large-scale batch production. Moreover, stamping can ensure the dimensional accuracy and shape consistency of the shaft base and the shell, so that the cooperation between the components is more precise. For example, for the key positions such as the middle protrusion on the shaft base, the edge screw surface, the first through hole, the second threaded hole and the convex bump on the shell, the stamping process can ensure the size and position accuracy, thereby ensuring the overall performance and stability of the door handle structure.
[0044] Further, the handle is provided with an identification module. The identification module can have various practical functions, which can greatly improve the safety and convenience of the door handle. In terms of type, it can be a fingerprint identification module, which uses advanced fingerprint identification technology to accurately identify the user's fingerprint. Only when the authorized fingerprint is identified, the door handle allows the next operation, such as opening the door lock, effectively preventing illegal intrusion. It can also be a face recognition module, which collects face images through a high-definition camera and quickly compares them with preset face data, with fast recognition speed and high accuracy, meeting the needs of users who can easily open the door when their hands are not convenient.
[0045] The embodiment of the utility model provides a door lock which comprises the door handle structure and the lock core component.
[0046] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as within the scope of the present disclosure.
[0047] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent application scope. It should be noted that, for ordinary skilled persons in the art, under the premise of not departing from the present application concept, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.
Claims
1. A door handle structure, characterized in that, include: A housing forms a receiving cavity. The housing is provided with a first through hole and a plurality of second threaded holes. The first through hole is located at the middle position of the housing, and the plurality of second threaded holes are arranged around the first through hole. The pivot base includes a central protrusion, a main body surface, and an edge screw surface. The central protrusion is disposed on the main body surface, and the protrusion direction of the central protrusion is away from the housing. A third threaded hole is present on the portion of the central protrusion near the housing, and the third threaded hole corresponds to the first through hole. A plurality of fourth threaded holes are provided on the edge screw surface, and the plurality of fourth threaded holes correspond to the plurality of second threaded holes. The edge screw surface is connected to the main body surface by an arc surface. When installed, the edge screw surface is close to the housing, and there is a certain distance between the main body surface and the housing. A gasket, wherein the gasket is fitted onto the central protrusion; A pivot assembly, wherein the pivot assembly is disposed on the intermediate protrusion; The handle is mounted on the pivot assembly, and the edge of the handle near the housing contacts the gasket. The first screw penetrates the housing and is installed in the first through hole and the third threaded hole; A plurality of second screws are installed in the second threaded hole and the fourth threaded hole.
2. The door handle structure according to claim 1, characterized in that, The housing has multiple protrusions, which are respectively provided with the multiple second threaded holes. The protrusions of the protrusions are in the direction of approaching the handle, and the edge screw surface is in contact with the protrusions.
3. The door handle structure according to claim 1, characterized in that, The pivot base is made of S50C or 65Mn steel, and its hardness is enhanced by heat treatment.
4. The door handle structure according to claim 1, characterized in that, The gap between the main body surface and the shell is 2-5mm ± 0.5mm.
5. The door handle structure according to claim 2, characterized in that, The convex hull is hemispherical, with a height of 3-5mm and a diameter of 8-10mm, and there are 4 convex hulls.
6. The door handle structure according to claim 1, characterized in that, The handle, the pivot base, and the pivot assembly are fixed by a first screw, and the pivot assembly is fixed to the metal housing by a second screw.
7. The door handle structure according to claim 1, characterized in that, The rotating shaft assembly contains a reset torsion spring, which allows the rotating shaft assembly to return to its original state when the handle force is removed.
8. The door handle structure according to claim 1, characterized in that, The shell is formed by stamping.
9. The door handle structure according to claim 1, characterized in that, The handle is equipped with a recognition module.
10. A door lock, characterized in that, Includes the door handle structure as described in any one of claims 1-9.