Mechanical lock handle structure
By incorporating a bevel gear structure inside the mechanical lock handle, the drive component is concealed at the end of the handle's crossbar, solving the problem of exposed knobs or keyholes and improving the handle's aesthetics and stability.
Patent Information
- Application Number
- CN202520127244.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-18
AI Technical Summary
The exposed knobs or keyholes of existing mechanical lock handles affect aesthetics and fail to meet the aesthetic requirements of modern homes and public building areas.
By incorporating a first bevel gear and a second bevel gear structure inside the handle, the drive component can be concealed at the end of the handle's crossbar, and the keyhole and knob positions are hidden, resulting in a more harmonious and aesthetically pleasing external structure. Furthermore, the stability of the drive component is ensured through the extension rod.
It achieves aesthetic harmony with the external structure of the handle, enhances the overall visual effect, and is suitable for the design needs of modern homes and public buildings.
Smart Images
Figure CN223753845U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to three pole lock technical field, more specifically, it relates to a mechanical lock handle structure. BACKGROUND
[0002] At present, the basic structure of the traditional mechanical lock on the market, such as three pole lock, mainly includes lock body, transmission square steel, handle, flat bar and supporting knob or keyhole and other components. The lock body is the core bearing part, the lock tongue on it realizes the expansion and contraction of the lock tongue through the rotation of the transmission square steel, the flat bar in the transmission square steel is responsible for the locking function, the flat bar drives the internal locking mechanism to insert or separate from the corresponding lock slot on the door frame through rotation, and the locking of the handle is achieved. The knob and the keyhole are used to drive the rotation of the flat bar.
[0003] However, the knob or keyhole of the existing mechanical lock handle is arranged on the front surface and exposed. From the aesthetic point of view, this arrangement greatly destroys the overall visual coordination of the door. Whether it is a modern simple style home door or an old-fashioned wooden door that pursues a retro flavor, the protruding knob or keyhole greatly affects the visual coordination. In some carefully designed home environment, the door as an important element of space separation and decoration, the lock components often break the simple and smooth line feeling or symmetry beauty originally created by the designer. Moreover, in public building areas, such as hotel corridors, passageway doors in office places, etc., many doors with side-arranged lock components arranged together also appear disorderly, cannot give people a delicate and regular impression, and are difficult to meet the increasing aesthetic needs of people. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies in the prior art, the utility model provides a mechanical lock handle structure, which optimizes the transmission structure inside the handle, so that the keyhole or knob is hidden in the end of the crossbar of the handle, and the coordination of the handle is enhanced.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mechanical lock handle structure, comprising a handle, a transmission square steel is arranged between the handles inside and outside the door, a flat bar is movably arranged in the transmission square steel, a transmission member is arranged in the handle and fixedly connected with one end of the flat bar, a first bevel gear is arranged at the other end of the transmission member, a driving member is rotatably arranged in the handle, a second bevel gear is arranged on the driving member, and the second bevel gear is in meshing transmission with the first bevel gear.
[0006] The utility model is further provided as follows: the driving member is arranged as a knob or a key lock core.
[0007] The utility model is further provided as follows: the driving member is arranged at the end of the crossbar of the handle.
[0008] The utility model further sets up: drive piece is provided with extension link, second bevel gear sets up the end of extension link, first bevel gear is located between drive piece and second bevel gear.
[0009] The utility model further sets up: the crossbar of handle is set up as cylindrical or polygonal column.
[0010] In summary, the utility model has the following beneficial effects:
[0011] The utility model discloses a first bevel gear and second bevel gear structure are arranged inside the handle, so that drive piece can be placed in the end of the crossbar of handle, thereby hiding the position of keyhole and knob, and the external structure of handle is more harmonious and beautiful.
[0012] Meanwhile, the utility model sets up extension link, and second bevel gear and drive piece are arranged on the two sides of first bevel gear respectively through extension link, so that when controlling drive piece rotation, the stress is more balanced, guarantees the stability of drive piece. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is whole external structure schematic diagram.
[0014] Figure 2 It is internal structure cross section schematic diagram.
[0015] Figure 3 It is another embodiment cross section structure schematic diagram of knob.
[0016] Reference signs: 1, handle, 2, transmission square steel, 3, flat strip, 4, transmission piece, 401, first bevel gear, 5, drive piece, 501, second bevel gear, 6, extension link, 7, end cover, 8, steel ball, 9, locking block, 10, handle pivot, 11, handle crossbar. DETAILED DESCRIPTION
[0017] The utility model will be further explained in detail in connection with the drawings.
[0018] The embodiment discloses a kind of mechanical lock handle structure, as Figures 1-3As shown, this embodiment uses a three-bar lock as an example, including a handle 1. A transmission square steel 2 is provided between the handle 1 inside and outside the door. The rotation of the handle 1 can drive the rotation of the transmission square steel 2. The transmission square steel passes through the lock body inside the door (not shown in the figure), thereby realizing the opening and closing of the door lock driven by the handle. In the three-bar lock, a flat bar 3 is movably arranged inside the transmission square steel 2, that is, the transmission square steel 2 is a hollow square column with the flat bar 3 passing through it, and the flat bar 3 can move and rotate inside the transmission square steel. A transmission component 4 is provided inside the handle 1, one end of which is fixedly connected to the flat bar 3. The other end of the transmission component 4 is provided with a first bevel gear 401. A driving component 5 is rotatably arranged inside the handle 1. A second bevel gear 501 is provided on the driving component 5. The second bevel gear 501 meshes with the first bevel gear 401 for transmission, and the transmission component 4 and the driving component 5 are arranged perpendicularly. Figure 2 Originally, the flat bar 3 rotated along the axial direction of the handle shaft 10. However, through the structural arrangement of the first bevel gear 401 and the second bevel gear 402, the angle of rotation is deflected, changing it to rotation in the axial direction of the handle crossbar 11. Thus, the driving component 5 for driving the flat bar rotation can be positioned in the axial direction of the handle crossbar 11, thereby concealing the driving component 5 on the front of the door. (Refer to...) Figure 1 This design results in a complete cylindrical external structure for the handle, making it more harmonious and aesthetically pleasing. It should be noted that this embodiment uses a three-bar lock as an example; in practical applications, this solution can be applied to any mechanical lock handle that uses a rotatable component on the handle for locking and unlocking.
[0019] Furthermore, the driving component 5 is set as a knob or key lock cylinder. The handle includes an inner door handle and an outer door handle. The inner door handle is generally driven by a knob, while the outer door handle is generally driven by a key in conjunction with a key lock cylinder. Therefore, the driving component 5 in the above embodiment can be a knob or a key lock cylinder, so that the overall coordination of the external structure of the handle is consistent whether it is inside or outside the door.
[0020] Furthermore, refer to Figures 2-3 Preferably, the drive component 5 is located at the end of the handle crossbar 11; in one embodiment, the key lock cylinder is located at the far end of the handle crossbar 11, and the knob is located at the near end of the handle crossbar 11. This has the advantage of providing sufficient installation space for the key lock cylinder, while the knob is closer together for easier operation. Another embodiment is described below. Figure 3 The knob is also located at the far end of the handle crossbar 11, thus enhancing the consistency between the inner and outer handles. In addition to the above embodiments, the drive member 5 can also be located in the middle of the handle crossbar 11, with a rotatable sleeve structure in the middle of the handle crossbar 11 to drive the drive member 5 to rotate. Alternatively, a portion of the handle crossbar 11 can be made into a rotatable structure, with the drive member 5 and the rotatable portion fixed. In use, the handle crossbar 11 can be directly gripped and rotated axially. All of the above embodiments fall within the design concept of this invention.
[0021] Further, in order to ensure the stability of the driving member and the bevel gear engagement, the driving member 5 is provided with an extension rod 6, the second bevel gear 501 is arranged at the end of the extension rod 6, and the first bevel gear 401 is located between the driving member 5 and the second bevel gear 501. In use, the driving member 5 has a tendency to loosen and come off outwardly, and the structure of the embodiment just stops the second bevel gear, so that the driving member will not loosen for a long time, and the use is stable and reliable, and the service life is long.
[0022] The above only describes the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the design concept of the present application should be included in the protection scope of the present application.
Claims
1. A mechanical lock handle structure, comprising a handle (1), a transmission square steel (2) is arranged between the handle (1) inside and outside the door, a flat bar (3) is movably arranged in the transmission square steel (2), characterized in that: The handle (1) is internally provided with a transmission member (4) fixedly connected with one end of the flat bar (3), the other end of the transmission member (4) is provided with a first bevel gear (401), the handle (1) is internally rotatably provided with a driving member (5), the driving member (5) is provided with a second bevel gear (501), the second bevel gear (501) is in meshing transmission with the first bevel gear (401), the transmission member (4) and the driving member (5) are vertically arranged.
2. A mechanical lock handle structure according to claim 1, characterised in that: The driving member (5) is arranged as a knob or a key lock core, the knob is arranged in the handle of the door, and the key lock core is arranged in the handle of the door.
3. A mechanical lock handle structure according to claim 1 or 2, characterised in that: The driving member (5) is arranged at the crossbar end of the handle.
4. A mechanical lock handle structure according to claim 1, characterized in that: The driving member (5) is provided with an extension rod (6), the second bevel gear (501) is arranged at the end of the extension rod (6), and the first bevel gear (401) is located between the driving member (5) and the second bevel gear (501).
5. A mechanical lock handle structure according to claim 1, characterized in that: The crossbar of the handle is arranged as a cylindrical column or a polygonal column.