Handle lock square core connecting structure, lock and door body

Abstract

The utility model relates to lock installation technical field discloses a handle lock square core connecting structure, lock and door body, a handle lock square core connecting structure includes: lock body, handle subassembly and the square core of connecting lock body with handle subassembly, wherein, the first square core hole is set up on the dab peach of lock body, the second square core hole is set up on handle subassembly, the square core sets up in first square core hole with second square core hole, and the adjustment gap is arranged between the inner side wall of second square core hole and the outer peripheral surface of square core, and the adjustment gap is used for compensating the assembly error between square core and handle subassembly. The utility model sets up the adjustment gap between the square core and handle subassembly square core hole, compensates the assembly error, and ensures that the square core rotates smoothly.

Description

Technical Field

[0001] This utility model relates to the field of lock installation technology, specifically to a lever lock core connection structure, a lock, and a door body. Background Technology

[0002] Currently, existing lever handle locks typically consist of a lock body mounted on the door panel and lever assemblies located on both sides of the lock body. Both the lock body and the lever assemblies have openings for mounting a square core, which are usually configured to fit the outer contour of the core. However, due to unavoidable tolerances and errors during the manufacturing and assembly of the door panel, lock body, and lever assemblies, the central axes of the lock body opening and the lever opening may shift relative to each other, making it impossible to always maintain perfect alignment.

[0003] This deviation makes it difficult for the square core to be smoothly assembled when inserted between the two ports. After installation, friction or assembly interference occurs between the square core and the inner wall of the port, which can easily cause problems such as jamming, increased rotational resistance, or incomplete movement during the rotation of the square core, affecting the normal use function and operation experience of the lever lock.

[0004] Therefore, there is an urgent need for a lever lock lever core connection structure that enables stable cooperation between the lever core and the lever assembly and lock body. Utility Model Content

[0005] This utility model was developed to solve the aforementioned technical problems. Its purpose is to provide a lever lock square core connection structure, lock and door body to solve the problems of difficulty in square core insertion and rotation jamming caused by assembly errors in the prior art. It has significant technical progress and practical value.

[0006] To achieve the above objectives, this utility model provides a square core connection structure for a lever handle lock, comprising: a lock body, a lever assembly, and a square core connecting the lock body and the lever assembly, wherein... A first square core hole is provided on the jack of the lock body; A second square core hole is provided on the handle assembly; The square core is disposed within the first square core hole and the second square core hole; An adjustment gap is provided between the inner wall of the second square core hole and the outer peripheral surface of the square core. The adjustment gap is used to compensate for the assembly error between the square core and the handle assembly.

[0007] Preferably, the adjustment gap is provided on both sides of the square core along the extension and retraction direction of the lock body and the bolt.

[0008] Preferably, the handle assembly includes: a handle, a cover, and a handle head rotatably disposed on the cover, wherein, The second square core hole is provided on the handle head; The handle rotates synchronously with the handle head.

[0009] Preferably, the handle head is rotatably connected to the cover via a pivot.

[0010] Preferably, the handle assembly includes: a handle and a handle head disposed inside the handle, wherein, The handle head rotates synchronously with the handle; The second square core hole is provided on the handle head.

[0011] Preferably, the handle head is fixed in the internal cavity of the handle by means of a snap-fit ​​connection or a threaded connection.

[0012] Preferably, the cross-sectional shapes of the first and second square core holes are adapted to the cross-sectional shape of the square core.

[0013] According to one embodiment of the present invention, a lock is provided. Including the lever lock core connection structure as described above.

[0014] According to one embodiment of this utility model, a door body... It includes the lock body as described above, which is fixedly mounted on the door body.

[0015] Based on the above description and practice, it can be seen that the lever lock square core connection structure of this utility model has the following advantages compared with the traditional lever lock square core connection structure: 1. By setting an adjustment gap between the second square core hole and the square core, the positional deviation of the door panel, lock body and handle assembly caused by manufacturing and assembly tolerances is effectively compensated, which significantly improves the smoothness of the square core insertion and the assembly error tolerance. 2. The adjustment capability of this structure is concentrated in the direction of the latch extension and retraction, which effectively adapts to the direction in which errors are most likely to occur during actual installation. Thus, without affecting the structural strength and transmission accuracy, it ensures improved alignment between the square core and the through-hole, and greatly reduces friction, interference and jamming during rotation. 3. This disclosure has a simple structure, requiring no additional complex adjustment mechanisms or extra parts, and achieves a significant improvement in assembly reliability and operational smoothness without increasing manufacturing costs; 4. Effectively extends the service life of the square core and related transmission components of the lock body, improving the overall stability of the door lock and the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the handle lock involved in one embodiment of the present utility model.

[0017] Figure 2 This is a cross-sectional view of the handle head installed inside the handle in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the handle head involved in one embodiment of the present utility model.

[0019] The attached figures are labeled as follows: 1. Lock body; 2. Handle assembly; 21. Cover; 22. Handle head; 23. Handle; 3. Square core; 4. Adjustment gap; 5. First square core hole; 6. Second square core hole. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] This embodiment discloses a lever lock core connection structure. Figure 1The overall structure of the lever lock is shown; Figure 2 The cross-sectional structure of the handle head mounted on the cover is shown; Figure 3 The overall structure of the cover is shown.

[0024] Example 1

[0025] like Figures 1 to 3 As shown in the figure, this embodiment provides a lever lock core connection structure, which mainly includes a lock body 1, a lever assembly 2 and a core 3.

[0026] Furthermore, the lock body 1 is fixedly installed in the lock body mounting hole of the door panel by fasteners such as screws. The lock body 1 contains conventional mechanisms such as a bolt, a latch, and a transmission assembly. In this disclosure, a first square core hole 5 is provided on the latch of the lock body 1. In this embodiment, the first square core hole 5 is preferably a square through hole, and the diameter of the first square core hole 5 matches the outer diameter of the end of the square core 3 to ensure that the square core 3 can be smoothly inserted and effectively transmit torque. The depth of the first square core hole 5 is usually 1.5 to 2 times the side length of the square core 3 to ensure sufficient mating length and transmission stability. The first square core hole 5 is used to reliably receive the torque transmitted by the square core 3, thereby driving the bolt to perform extension and retraction.

[0027] Furthermore, the handle assembly 2 is installed on the left and right sides of the door panel. In this embodiment, the handle assembly 2 mainly includes a handle 23, a cover 21, and a handle head 22. The cover 21 is typically made of stainless steel, copper alloy, or engineering plastic, and is fixed to the door panel surface by self-tapping screws or bolts, serving to support the internal mechanism, provide dust protection, and for decoration. The handle head 22 is typically made of zinc alloy or copper alloy through precision casting, and is rotatably mounted on the cover 21 via a pivot. The pivot has bushings or bearings at both ends to ensure that the handle head 22 can rotate flexibly and smoothly relative to the cover 21. A second square core hole 6 is provided on the handle head 22. The handle 23 is typically made of a metal substrate with an electroplated or sprayed coating. The handle 23 and the handle head 22 are fixedly connected by set screws, spline fits, or D-shaped shaft hole connections to ensure that the handle 23 and handle head 22 achieve synchronous rotation without slippage.

[0028] Furthermore, the square core 3 is a transmission rod that transmits torque, and its cross-section is preferably square, made of high-strength metal material. The two ends of the square core 3 are respectively inserted into the first square core hole 5 of the lock body 1 and the second square core hole 6 of the handle head 22, thereby transmitting the rotational movement of the handle 23 to the lock body 1. The cross-sectional shapes of the first square core hole 5 and the second square core hole 6 are both adapted to the cross-sectional shape of the square core 3.

[0029] Furthermore, an adjustment gap 4 is provided between the inner wall of the second square core hole 6 and the outer peripheral surface of the square core 3. This adjustment gap 4 is used to compensate for the assembly errors accumulated during the manufacturing and on-site installation of multiple components such as the door panel, lock body 1, and handle assembly 2.

[0030] Specifically, such as Figure 2 As shown, the adjustment gap 4 is mainly set on the left and right sides of the square core 3 along the extension and retraction direction of the bolt of the lock body 1. The adjustment gap 4 allows the square core 3 to have a small amount of adaptive adjustment space in this direction during the insertion of the second square core hole 6, automatically aligning itself and effectively avoiding problems such as assembly difficulties, increased rotational friction, operation jamming, or even incomplete rotation caused by axial misalignment. By adopting the adjustment gap 4, the assembly success rate of the square core is significantly improved compared with the traditional structure.

[0031] In summary, when the user applies rotational force to the handle 23, the torque is transmitted to the square core 3 through the handle head 22. The square core 3 then rotates, causing the latch of the lock body 1 to rotate, ultimately driving the bolt to complete the unlocking or locking action. Throughout the transmission chain, the adjustment gap 4 reduces alignment errors, ensuring that the square core 3 can rotate smoothly within the second square core hole 6 even with assembly deviations. This significantly improves the operating feel, reliability, and service life of the door lock, maintaining a smooth operating feel while reducing wear on the square core compared to traditional structures.

[0032] Example 2

[0033] Based on Embodiment 1, this embodiment provides another handle lock core connection structure. Its main difference from Embodiment 1 lies in the specific structural form of the handle assembly 2.

[0034] This embodiment provides another lever lock core connection structure, which mainly includes a lock body 1, a lever assembly 2, and a core 3.

[0035] Furthermore, the handle assembly 2 no longer includes a separate cover 21, but mainly comprises a handle 23 and a handle head 22. The handle 23 is typically a tubular or box-shaped structure with an internal cavity. The handle head 22 is housed within this cavity, and the handle head 22 also has a second square core hole 6. The handle head 22 is securely fixed in the internal cavity of the handle 23 by means of snap-fit ​​connection (e.g., the elastic claw on the outside of the handle head 22 engages with the groove on the inner wall of the handle 23) or threaded connection (e.g., the outer wall of the handle head 22 has external threads that engage with the internal threads in the handle cavity), thereby achieving synchronous rotation of the handle 23 and the handle head 22.

[0036] Furthermore, the lock body 1, the square core 3, and the adjustment gap 4 are configured and functioned exactly the same as in Embodiment 1. Specifically, the adjustment gap 4 is mainly arranged on the left and right sides of the square core 3 along the extension and retraction direction of the lock tongue of the lock body 1. The square core 3 is a transmission rod that transmits torque, and its cross-section is preferably square, made of high-strength metal material. The cross-sectional shapes of the first square core hole 5 and the second square core hole 6 are adapted to the cross-sectional shape of the square core 3. One end of the square core 3 is inserted into the first square core hole 5 of the lock body 1, and the other end is inserted into the second square core hole 6 on the handle head 22 housed inside the handle 23. The adjustment gap 4 is also arranged between the second square core hole 6 and the square core 3, mainly used to compensate for assembly errors in the extension and retraction direction of the lock tongue. When there is an assembly deviation, the square core 3 can be finely adjusted within the space inside the handle 23 using the adjustment gap 4, ensuring that even if there are internal tolerances in the handle assembly, the square core 3 can be smoothly inserted and achieve interference-free rotation. This built-in handle structure reduces the number of exposed parts, resulting in a simpler appearance, while the internal structure provides better protection against dust and foreign objects.

[0037] As one embodiment, this disclosure also provides a lock that includes the lever lock square core connection structure as described in Embodiment 1 or Embodiment 2. This lock integrates the lock shell, bolt, latch, and the lever lock square core connection structure of this disclosure, forming a complete lock functional module that can be directly assembled onto a door. When the lock body is assembled onto the door, the requirements for door opening accuracy and installation accuracy are significantly reduced, installation and debugging time is shortened, and production efficiency and installation success rate are greatly improved, making it suitable for the needs of large-scale standardized production and rapid on-site installation.

[0038] As one embodiment, this disclosure also provides a door body including the aforementioned lock. The lock is fixedly installed in a pre-set lock body mounting groove on the door body using screws. The door body can be a door product made of various materials such as wood, metal, or composite. This lock, due to its use of the lever lock square core connection structure of this disclosure, possesses advantages such as high assembly tolerance, smooth operation, and long service life. In actual use, even if the user's door body undergoes slight deformation due to temperature and humidity changes, or if the installation base has a certain degree of unevenness, adjusting the gap 4 can still effectively compensate for these deviations, ensuring the long-term stable and reliable operation of the door lock and enhancing the overall market competitiveness of the product.

[0039] In summary, a specific adjustment gap 4 is provided between the second square core hole 6 of the handle assembly 2 and the transmission square core 3. This adjustment gap 4 is a fault-tolerant structure, mainly distributed in the extension and retraction direction of the bolt, allowing the square core 3 to make slight adaptive adjustments within this plane, thereby compensating for the assembly tolerances between the three major modules: the door panel, the lock body 1, and the handle assembly 2. The adjustment gap 4 greatly reduces the accuracy requirements for the alignment of the square core 3 and the through hole, significantly improving assembly smoothness and installation qualification rate.

[0040] Based on the aforementioned adjustment gap 4, this disclosure provides two preferred implementations of the handle assembly: one in which the handle head 22 is rotatably mounted on the outer cover 21, and the other in which the handle head 22 is built into and fixed on the handle head 2. Both solutions can reliably achieve torque transmission, providing flexible choices for different product positioning and appearance design requirements, and solving technical problems such as misalignment of the square core, difficulty in insertion, and rotational jamming caused by machining tolerances and assembly errors.

[0041] In other words, by incorporating the aforementioned square core 3 connection structure into a complete lock, the lock exhibits excellent assembly friendliness and operational reliability, significantly reducing on-site debugging time. When the lock is installed inside the door, its long-term stability is significantly enhanced, effectively reducing the failure rate and after-sales maintenance costs.

[0042] 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 lever handle lock core connection structure, characterized in that, include: The lock body, the handle assembly, and the square core connecting the lock body and the handle assembly, wherein, A first square core hole is provided on the jack of the lock body; A second square core hole is provided on the handle assembly; The square core is disposed within the first square core hole and the second square core hole; An adjustment gap is provided between the inner wall of the second square core hole and the outer peripheral surface of the square core. The adjustment gap is used to compensate for the assembly error between the square core and the handle assembly.

2. The lever handle lock core connection structure as described in claim 1, characterized in that, The adjustment gap is set on both sides of the square core along the extension and retraction direction of the lock body and bolt.

3. The lever handle lock core connection structure as described in claim 1, characterized in that, The handle assembly includes: a handle, a cover, and a handle head rotatably disposed on the cover, wherein... The second square core hole is provided on the handle head; The handle rotates synchronously with the handle head.

4. The lever handle lock core connection structure as described in claim 3, characterized in that, The handle head is rotatably connected to the cover via a pivot.

5. The lever handle lock core connection structure as described in claim 1, characterized in that, The handle assembly includes: a handle and a handle head disposed inside the handle, wherein, The handle head rotates synchronously with the handle; The second square core hole is provided on the handle head.

6. The lever handle lock core connection structure as described in claim 5, characterized in that, The handle head is fixed in the internal cavity of the handle by means of a snap-fit ​​connection or a threaded connection.

7. The lever lock core connection structure as described in any one of claims 1 to 6, characterized in that, The cross-sectional shape of the core is square.

8. The lever lock core connection structure as described in any one of claims 1 to 6, characterized in that, The cross-sectional shapes of the first and second square core holes are adapted to the cross-sectional shape of the square core.

9. A lock, characterized in that: Includes the lever lock core connection structure as described in any one of claims 1 to 8.

10. A door, characterized in that: It includes the lock body as described in claim 9, wherein the lock body is fixedly mounted on the door body.

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