Door handle and door lock

Abstract

The utility model relates to the technical field of lockset, disclose a handle and handle door lock, a handle, include: handle head, be provided with square core hole in one end of handle head, be equipped with mounting hole in handle head, be equipped with the communicating part between mounting hole and square core hole, be equipped with fixing piece in communicating part, be provided with fixed screw in mounting hole, among them, the end of fixed screw and fixed piece are opposite, and fixed screw is used for pushing fixed piece and is compact square core, the utility model discloses through the fixed screw and presses the fixed piece and eliminates square core gap, effectively prevent square core and shake the abnormal sound, have simple structure, the advantage that adjust convenient, high reliability.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a handle and a handle door lock. Background Technology

[0002] Lever handle locks are a common type of door lock in modern buildings, generally consisting of a lock body, a square core, and inner and outer handles. The square core passes through the lock body, with its two ends engaging with the handles on the inside and outside of the door, respectively, to transmit torque to drive the bolt to extend and retract.

[0003] To compensate for machining and installation errors in components and to facilitate assembly, a certain clearance is usually maintained between the square core and the square core hole on the handle. However, this clearance can cause the square core to become loose within the hole. When the user rotates the handle, the square core will impact the inner wall of the hole, producing a "clicking" noise. This noise not only affects the user experience and gives the impression of low-quality, loosely constructed products, but in the long run, it may also accelerate wear on the square core and handle, affecting the lifespan of the lock.

[0004] Therefore, there is an urgent need for a handle and handle lock that can effectively eliminate the shaking of the core and prevent abnormal noise. Utility Model Content

[0005] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide a handle that can effectively prevent the square core from shaking, effectively fix the square core without affecting the appearance of the handle, and is easy to install and has an ingenious structure.

[0006] To achieve the above objectives, this utility model provides a handle, comprising: a handle head, wherein a square core hole is provided at one end of the handle head; A mounting hole is provided inside the handle head, and a connecting portion is provided between the mounting hole and the square core hole. A fixing member is provided inside the connecting portion, and a fixing screw is provided inside the mounting hole; wherein... At least one contact surface between the fastener and the screw is an arc surface or a slope surface; The end of the fixing screw abuts against the fixing member, and the fixing screw is used to push the fixing member to press the square core.

[0007] Preferably, the handle further includes an assembly, on which the square core hole, mounting hole and connecting portion are integrally formed.

[0008] Preferably, a bevel is provided at the end of the fixing screw, wherein, The inclined surface abuts against the surface of the fixing member.

[0009] Preferably, the surface of the fastener is an arc surface, and the inclined surface is a plane or an arc surface.

[0010] Preferably, the two ends of the connecting portion are respectively connected to the mounting hole and the square core hole.

[0011] According to one embodiment of the present invention, a lever handle door lock is provided, comprising: Lock body; Handle base, connected to the lock body; The handle, as described above, is rotatably connected to the handle seat; The square core is inserted through the lock body and the handle base, with one end inserted into the square core hole; The end of the fastener away from the screw is pressed against the square core.

[0012] According to one embodiment of the present utility model, a handle is provided, comprising: a handle head, wherein a square core hole is provided at one end of the handle head; A mounting hole is provided inside the handle head, a connecting portion is provided between the mounting hole and the square core hole, a fixing member is provided inside the connecting portion, a fixing screw is provided inside the mounting hole, and a slider is slidably disposed inside the mounting hole; wherein... One end of the slider abuts against one end of the screw, and the other end is an inclined surface that abuts against the fixing member.

[0013] Preferably, the end of the fixing member near the slider is a slope or an arc surface.

[0014] Preferably, the handle further includes an assembly, on which the square core hole, mounting hole and connecting portion are integrally formed.

[0015] According to one embodiment of the present invention, a lever handle door lock is provided, comprising: Lock body; Handle base, connected to the lock body; The handle, as described above, is rotatably connected to the handle seat; The square core is inserted through the lock body and the handle base, with one end inserted into the square core hole; The end of the fastener away from the screw is pressed against the square core.

[0016] Based on the above description and practice, it can be seen that the handle described in this utility model has the following advantages compared with traditional handles: 1. By tightening the fixing parts with screws, the gap between the square core and the square core hole is eliminated, which fundamentally avoids the shaking and collision of the square core during rotation, effectively eliminates abnormal noise, and improves the product quality and user experience. 2. The clamping force on the core can be easily adjusted by simply turning the fixing screw with a screwdriver, making assembly and subsequent maintenance and adjustment very simple; 3. All adjustment mechanisms are built into the handle and are completely covered by the cover. There are no visible screw holes or tool marks on the outer surface of the handle, perfectly maintaining the smooth and complete appearance of the handle, which is aesthetically pleasing. 4. This structure requires only a few parts to be added to the existing handle structure, such as fixing screws, fasteners, and baffle covers. The modification cost is low, the structure is compact, the mechanical principle is clear and reliable, and it is easy to implement and promote. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the handle involved in one embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0019] Figure 3 This is a schematic diagram of the structure in one embodiment of the present invention, showing the handle head end installed behind the baffle cover.

[0020] Figure 4 and Figure 5 This is a schematic diagram of a structure in one embodiment of the present invention, in which the fixing screw and the slider abut against each other with different contact surfaces.

[0021] Figure 6 and Figure 7 This is a schematic diagram of a structure in one embodiment of the present invention, in which bolts, sliders and fixing components abut against each other in pairs under different fixing components.

[0022] The attached figures are labeled as follows: 1. Handle; 11. Handle head; 12. Square core hole; 13. Mounting hole; 14. Connecting part; 2. Square core; 3. Fastener; 4. Fixing screw; 5. Cover. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0024] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] This embodiment discloses a handle. Figure 1 A cross-section of the overall structure of the handle is shown. Figure 2 It shows Figure 1 The enlarged view of area A in the middle shows the mating relationship between the fixing screw, ball bearing, and square core; Figure 3 The overall structure after the baffle cover is installed at the end of the handle head is shown. Figure 4 and Figure 5 The structure is shown where the fixing screw and the slider abut against each other with different contact surfaces. Figure 6 and Figure 7 The diagram illustrates a structure in which bolts, sliders, and fasteners abut against each other in pairs, with different fasteners in place.

[0027] Example 1

[0028] like Figures 1 to 3As shown, this embodiment provides a handle, which includes a handle 1, a square core 2, a fixing member 3, a fixing screw 4, and a cover 5. The handle 1 is typically made of zinc alloy, stainless steel, or copper through die casting, precision casting, or machining. Its overall shape conforms to ergonomic design for easy gripping and rotation by the user. The handle 1 includes a handle head 11, which is typically cylindrical or square-shaped. One end of the handle head is connected to the handle portion via a connecting structure, and the other end has a square core hole 12 for installing the square core 2. The cross-sectional shape of the square core hole 12 matches the cross-sectional shape of the square core 2, and is typically square. Its size is slightly larger than that of the square core 2 to form an assembly gap, typically between 0.1 mm and 0.5 mm, to facilitate the insertion and installation of the square core 2. The square core 2 is typically made of high-strength medium carbon steel or alloy steel, and its surface can be treated with nickel plating, blackening, or other rust-proofing methods. The length of the square core 2 varies depending on the door thickness, and its two ends are inserted into the square core holes 12 of the inner and outer handles, respectively, to transmit torque and drive the bolt mechanism inside the lock body. To solve the technical problem of abnormal noise caused by the square core 2 wobbling within the square core hole 12, this invention incorporates a mounting hole 13 machined inside the handle head 11, with internal threads machined on the inner wall of the mounting hole 13. A connecting portion 14 is provided between the mounting hole 13 and the square core hole 12. This connecting portion 14 is a through channel with a diameter smaller than that of the mounting hole 13, connecting the inner cavity of the mounting hole 13 with the inner cavity of the square core hole 12. A fixing member 3 is disposed within the connecting portion 14. The fixing screw 4 is screwed into the mounting hole 13. When the fixing screw 4 is tightened, its end will extend into the mounting hole 13 and abut against the fixing member 3, thereby pushing the fixing member 3 to move towards the square core hole 12. Finally, the fixing member 3 is pressed against the surface of the square core 2, thereby eliminating the gap between the square core 2 and the square core hole 12, thus preventing the square core 2 from shaking and making abnormal noises during rotation.

[0029] Furthermore, the handle incorporates an assembly, which can be a separate part or integrally formed with the handle head 11. The square core hole 12, mounting hole 13, and connecting portion 14 are integrally formed on this assembly. This integrated design offers several advantages: firstly, it ensures the relative positional accuracy between the various holes, improving assembly precision and reliability; secondly, it reduces the number of parts, simplifying the assembly process; and finally, it enhances the overall strength and stability of the structure. The assembly can be made of metal through precision casting or CNC machining, or it can be injection molded from high-strength engineering plastics; the specific material selection depends on the product's positioning and cost requirements.

[0030] Furthermore, in order to more effectively convert the axial movement of the fixing screw 4 into radial pressure on the fixing member 3, such as Figure 3As shown, the end of the fixing screw 4 has a bevel 41, and the surface of the fixing member 3 is correspondingly an arc surface, such as a ball bearing. The bevel 41 on the fixing screw 4 can be formed by turning, grinding, or stamping. The angle between the bevel 41 and the axis of the fixing screw 4 is usually between 30 degrees and 60 degrees, preferably 45 degrees. When the fixing screw 4 is screwed in, the bevel 41 at its end contacts the arc surface of the fixing member 3. As the screw is screwed in, the bevel 41 slides relative to the fixing member 3, thereby generating a pressure component towards the square core 2 on the fixing member 3. This pressure component drives the fixing member 3 to move along the connecting part 14 towards the square core hole 12, and finally presses it against the surface of the square core 2 with a certain preload. The bevel 41 allows a large square core clamping force to be obtained with a small screw tightening torque, which is labor-saving and allows for precise adjustment.

[0031] In addition to using the structure of inclined plane 41, such as Figure 4 and Figure 5 As shown, when one end of the fixing member 3 is a smooth bevel, the end of the fixing screw 4 can be designed as either a bevel or an arc surface. When the end of the fixing screw 4 is a bevel, the plane contacts the bevel of the fixing member 3, and the contact point is one surface, directly pressing the fixing member 3 through the advancement of the screw; when the end of the fixing screw 4 is an arc surface (e.g., a shape similar to a ball head), the arc surface contacts the bevel of the fixing member 3, forming a contact between the arc surface and the bevel, and the contact point is one point. In other embodiments, when the end of the fixing screw 4 is an arc surface, the fixing member 3 can also be a sphere, and the arc surface contacts the spherical surface of the fixing member 3, forming a contact between the spheres. This contact method can reduce contact stress and reduce wear, but the force transmission efficiency may be slightly lower than that of the bevel design. The specific end shape can be selected based on the actual required clamping force, part wear considerations, and machining feasibility.

[0032] Furthermore, to facilitate operation and without affecting the aesthetic appearance of the handle 1, the mounting hole 13 is located at the end of the handle head 11 furthest from the lock body. This end face is usually not visible to the user during normal use. The advantages of placing the adjustment mechanism here are: firstly, there is ample operating space, making it easy to operate with tools such as screwdrivers; secondly, it is far from the rotation center of the handle 1, minimizing the impact on the overall structural strength of the handle 1; and thirdly, it is convenient to install a decorative cover 5 on this end face to conceal the adjustment mechanism.

[0033] Furthermore, the mounting hole 13 is located inside the handle, and a cover 5 is also provided at one end of the handle head 11. This cover 5 is typically made of plastic (such as ABS or nylon) or metal, and its appearance, color, and texture are consistent with the handle 1, serving both decorative and protective purposes. The cover 5 can be installed at the end of the handle head 11 in several ways, such as by engaging with a groove or protrusion on the outer edge of the handle head 11 using a snap-fit ​​structure on its inner wall; by applying a small amount of adhesive; or by securing it with a fastening screw. The cover 5 is designed to completely cover the opening of the mounting hole 13 and the internal fixing screw 4, ensuring that no screw hole traces are visible from the outside. This guarantees the smooth, complete, and aesthetically pleasing appearance of the handle 1, meeting consumers' aesthetic requirements for high-quality lock appearance.

[0034] Furthermore, the connecting portion 14 serves as a channel connecting the mounting hole 13 and the square core hole 12. This channel is typically a simple straight hole, formed in one step through drilling. Its axis can be perpendicular to the axis of the mounting hole 13 or at a certain angle. The connecting portion 14 must ensure that the fixing member 3 (such as a ball bearing) can move smoothly within it, while preventing the fixing member 3 from falling completely into the square core hole 12 or retracting into the mounting hole 13. Typically, the diameter of the connecting portion 14 is slightly smaller than the diameter of the fixing member 3, relying on the slight elastic deformation of the fixing member 3 or precise dimensional fit to achieve its limiting and guiding functions.

[0035] Based on the aforementioned handle, this utility model also provides a handle door lock, including a lock body, a handle base, and a handle 1. The lock body is installed inside the door leaf, and the handle base is connected to the lock body, typically fixed to the door panel surface with screws. The handle is rotatably connected to the handle base via a shaft hole and a handle head 11. A square core 2 passes through the lock body and the handle base, with one end inserted into the square core hole 12 of the handle head 11. The end of the fixing member 3 away from the fixing screw 4 abuts tightly against the surface of the square core 2, eliminating the gap between the square core 2 and the square core hole 12 through friction. When the user rotates the handle 1, torque is smoothly transmitted to the lock body through the square core 2, driving the bolt to retract and achieving the door opening operation. This utility model effectively solves the problem of abnormal noise caused by the shaking of the square core in traditional handle locks, improving the product's quality and user experience.

[0036] Example 2

[0037] This embodiment also provides another implementation of the handle, which also includes a handle 1 and a square core 2. Unlike embodiment one, this implementation has a slider 6 slidably disposed within the mounting hole 13. The slider 6 is located between the fixing screw 4 and the fixing member 3, acting as an intermediary for force transmission. One end of the slider 6 abuts against the end of the fixing screw 4, and the other end is an inclined surface that abuts against the fixing member 3. When the fixing screw 4 is tightened, its end pushes the slider 6 towards the fixing member 3. Because the other end of the slider 6 is an inclined surface, a pressure component towards the square core 2 is generated on the fixing member 3 during the movement, causing the fixing member 3 to press against the square core 2. The slider transmission allows for more flexible adjustment of the direction and magnitude of force transmission.

[0038] like Figure 6 and Figure 7 As shown, corresponding to the inclined surface design of slider 6, the end of the fixing member 3 near slider 6 can be either an inclined surface or an arc surface. When the end of the fixing member 3 is also an inclined surface, the end of the fixing member 3 and the inclined surface of slider 6 form an inclined surface fit. This fit method has high transmission efficiency, but it is necessary to ensure that the angles of the two inclined surfaces are matched. When the end of the fixing member 3 is an arc surface, it forms a point contact or line contact with the inclined surface of slider 6. The requirements for machining accuracy are relatively low, and the contact position can be adaptively adjusted. The specific fit method can be selected according to the product's accuracy requirements, cost budget, and production process.

[0039] In this embodiment, the handle 1 can also contain an assembly, on which the square core hole 12, mounting hole 13, and connecting part 14 are integrally formed. This integrated design ensures the positional accuracy between the several channels, providing a basis for the precise movement of the slider 6 and the fixing part 3. The assembly can be made of metal material through precision machining to ensure sufficient strength and dimensional stability; or it can be injection molded from high-strength engineering plastics to reduce cost and weight. The assembly can be fixed to the handle head 11 by means of screw connection, press fitting, or bonding, or it can be integrally formed with the handle head 11.

[0040] Based on the second type of handle, this utility model also provides a corresponding handle door lock, including a lock body, a handle base, and a handle 1. The lock body is installed inside the door and includes a complete locking mechanism. The handle base is connected to the lock body and fixed to the door panel surface. The handle 1 is rotatably connected to the handle base via a shaft or other structure. A square core 2 passes through the lock body and the handle base, with one end inserted into the square core hole 12 of the handle head 11. The end of the fixing member 3 away from the slider 6 is pressed tightly against the surface of the square core 2. By adjusting the screwing depth of the fixing screw 4, the displacement of the slider 6 can be controlled, thereby adjusting the clamping force of the fixing member 3 on the square core 2. The slider 6 makes the fixing adjustment of the square core 2 more precise and reliable, eliminating the abnormal noise problem caused by the shaking of the square core.

[0041] Specifically, the square core 2 is inserted into the lock body 6. One end of the square core 2 is connected to the inner handle 1, and the other end is connected to the outer handle 1. The lock body 6 is fixedly installed inside the door and contains a bolt mechanism driven by the rotation of the square core 2. When the user rotates either side of the handle 1, the torque is transmitted to the lock body 6 through the square core 2, driving the bolt to retract and open the door. The handle inside the handle head 11 acts on the square core 2 to ensure that the torque is transmitted between the square core 2 and the handle 1 without any shaking, thereby avoiding abnormal noise caused by gaps and improving the operating accuracy.

[0042] In summary, this utility model fundamentally solves the problem of abnormal noise caused by the shaking of the square core by setting an installation hole 13 and a connecting part 14 in the handle head 11 and pushing the fixing member 3 by screwing in the fixing screw 4.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A handle, characterized in that, include: The handle head has a square core hole at one end; A mounting hole is provided inside the handle head, and a connecting portion is provided between the mounting hole and the square core hole. A fixing member is provided inside the connecting portion, and a fixing screw is provided inside the mounting hole; wherein... At least one contact surface between the fastener and the screw is an arc surface or a slope surface; The end of the fixing screw abuts against the fixing member, and the fixing screw is used to push the fixing member to press the square core.

2. The handle as described in claim 1, characterized in that, The handle also includes an assembly, on which the square core hole, mounting hole and connecting portion are integrally formed.

3. The handle as described in claim 2, characterized in that, A bevel is provided at the end of the fixing screw, wherein, The inclined surface abuts against the surface of the fixing member.

4. The handle as described in claim 3, characterized in that, The surface of the fastener is an arc surface, and the inclined surface is a plane or an arc surface.

5. The handle as described in claim 1, characterized in that, The two ends of the connecting portion are respectively connected to the mounting hole and the square core hole.

6. A lever handle door lock, characterized in that, include: Lock body; Handle base, connected to the lock body; The handle as described in any one of claims 1 to 5 is rotatably connected to the handle seat; The square core is inserted through the lock body and the handle base, with one end inserted into the square core hole; The end of the fastener away from the screw is pressed against the square core.

7. A handle, characterized in that, include: The handle head has a square core hole at one end; A mounting hole is provided inside the handle head, a connecting portion is provided between the mounting hole and the square core hole, a fixing member is provided inside the connecting portion, a fixing screw is provided inside the mounting hole, and a slider is slidably disposed inside the mounting hole; wherein... One end of the slider abuts against one end of the screw, and the other end is an inclined surface that abuts against the fixing member.

8. The handle as described in claim 7, characterized in that, The end of the fixing member near the slider is a sloped surface or an arc surface.

9. The handle as described in claim 7, characterized in that, The handle also includes an assembly, on which the square core hole, mounting hole and connecting portion are integrally formed.

10. A lever handle door lock, characterized in that, include: Lock body; Handle base, connected to the lock body; The handle as described in any one of claims 7 to 9 is rotatably connected to the handle seat; The square core is inserted through the lock body and the handle base, with one end inserted into the square core hole; The end of the fastener away from the screw is pressed against the square core.

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