Door handle fixing base and door handle
By designing a precise fit and reset structure between the door handle fixing base and the rotating component, the problem of imprecise fit between the rotor and the base in the existing technology is solved, achieving greater tensile strength and longer service life, while also supporting convenient replacement and stable connection of the handle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN ZHEMI SECURITY TECHNOLOGY CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-28
AI Technical Summary
The existing door handle's central rotor and base cannot be precisely matched, resulting in play and wobbling. The reset structure is subjected to force on the handle, leading to a short service life.
Design a door handle fixing base, including a mounting base, a rotating component, and a reset structure. The rotating component is provided with a handle connecting groove and a rotating sliding part. The rotating track is precisely matched with the sliding part. The reset structure is located between the base and the rotating component to prevent shaking. The handle rotation is restricted by the limiting protrusion and the limiting groove. When in use, the force is applied to the base and the handle.
It achieves a precise fit between the rotating parts and the base, preventing wobbling, enhancing tensile strength, extending service life, and supporting easy handle replacement, thus improving versatility and stability.
Smart Images
Figure CN224173841U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model belongs to the field of door handle technology, and in particular relates to a door handle fixing base and a door handle. [Background Technology]
[0002] Door handles are common items installed on doors to control the opening or closing of the door lock.
[0003] Door handles generally include a base mounted on the door, a central rotor mounted on the base that can rotate in both directions, and a handle for driving the central rotor. However, existing door handles cannot achieve a precise fit between the central rotor and the base, resulting in play and wobbling. In addition, the reset structure of existing door handles is located on the handle. When the handle is pulled to open or close the door, the force is applied to the reset structure inside the handle, resulting in low tensile strength, easy damage, and short service life. [Utility Model Content]
[0004] The purpose of this utility model is to provide a door handle fixing base and door handle with a compact structure, a precise fit between the rotating part and the mounting base without any play, to avoid shaking, and a greater and more robust tensile strength and longer service life.
[0005] This utility model is achieved by the following technical solution:
[0006] A door handle mounting base, comprising:
[0007] A mounting base for mounting on a door, the mounting base having a mounting cavity and a rotating track;
[0008] A rotating component is rotatably disposed in a mounting cavity. The rotating component is provided with a handle connecting groove and a rotating sliding part disposed on the periphery of the handle connecting groove. The rotating sliding part is rotatably disposed in a rotating track, and the rotating track is used to limit the axial displacement and swaying of the rotating component.
[0009] The reset structure is located between the mounting base and the rotating component, and is used to drive the rotating component to reset.
[0010] As described above, a door handle mounting base includes:
[0011] The mounting part has a recessed rotating groove on the side away from the door that communicates with the mounting cavity. The shape of the rotating sliding part matches the rotating groove and is rotatably mounted on the rotating groove.
[0012] A base cover is located on the side of the mounting part away from the door. The base cover and the rotating groove together form the rotating track, which, together with the mounting part, restricts the axial displacement and swaying of the rotating part.
[0013] As described above, a door handle fixing base has a first mounting hole and a first positioning hole on the mounting part and located around the rotating groove. The base cover has a second mounting hole corresponding to the first mounting hole and a first positioning pin corresponding to and matching the first positioning hole. When the first positioning pin is inserted into the first positioning hole, the second mounting hole corresponds to the first mounting hole.
[0014] As described above, in a door handle fixing base, the mounting part is recessed on the side away from the door and has a limiting notch that communicates with the rotating groove. The rotating sliding part is provided with a first limiting end and a second limiting end that can move within the limiting notch. The rotating sliding part can rotate forward on the rotating groove until the first limiting end abuts against the wall of the limiting notch, or rotate in the reverse direction until the second limiting end abuts against the wall of the limiting notch.
[0015] As described above, a door handle fixing base includes a reset structure comprising a torsion spring mounting groove on a rotating component, a clearance notch for connecting the torsion spring mounting groove and a limiting notch, and a reset torsion spring in the torsion spring mounting groove. The reset torsion spring has torsion spring limiting portions at both ends. The torsion spring limiting portions pass through the clearance notch and can move within the limiting notch. When the rotating sliding portion rotates on the rotating groove, the groove wall of the clearance notch abuts against the corresponding torsion spring limiting portion and pushes the torsion spring limiting portion to move within the limiting notch. When the torsion spring limiting portion at the end of the reset torsion spring resets, it pushes the rotating sliding portion to rotate and reset.
[0016] As described above, in a door handle fixing base, there are two clearance slots, which are staggered vertically on the rotating part so that the two torsion spring limiting parts of the reset torsion spring are installed in a staggered vertical position.
[0017] A door handle includes a door handle fixing base as described above and a handle. The handle is provided with a handle connecting protrusion that can extend into a handle connecting groove. A limiting protrusion and a limiting groove that match the limiting protrusion are provided between the handle connecting groove and the handle connecting protrusion. When the handle connecting protrusion extends into the handle connecting groove, the limiting protrusion and the limiting groove cooperate to restrict the rotation of the handle relative to the rotating part.
[0018] As described above, in a door handle, the limiting protrusion is a wedge-shaped protrusion extending radially along the wall of the handle connecting groove, and the limiting groove is a wedge-shaped groove provided on the side wall of the handle connecting protrusion and corresponding to and matching the limiting protrusion. The limiting protrusion is axially provided on the wall of the handle connecting groove, and the cross-sectional area of the limiting protrusion gradually increases from the opening of the handle connecting groove towards the bottom of the handle connecting groove. As the handle connecting protrusion extends into the handle connecting groove, the limiting protrusion extends into the limiting groove, and the outer wall of the limiting protrusion gradually engages with the wall of the limiting groove.
[0019] As described above, the door handle also includes an outer cover disposed on a mounting base, the inner wall of the outer cover being provided with an internal thread for connection, and the outer wall of the mounting base being provided with an external thread for connection that engages with the internal thread for connection.
[0020] As described above, in a door handle, the outer cover is rotatably sleeved on the handle connecting protrusion. The side wall of the handle connecting protrusion is provided with a limiting ring groove and a limiting retaining ring that is locked in the limiting ring groove. When the handle connecting protrusion extends into the handle connecting groove and the outer cover is connected to the mounting base, the outer cover abuts against the limiting retaining ring to prevent the handle connecting protrusion from disengaging from the handle connecting groove.
[0021] Compared with the prior art, the present invention has the following advantages:
[0022] This utility model provides a door handle fixing base, including a mounting base with a mounting cavity and a rotating track, a rotating component rotatably disposed in the mounting cavity, and a reset structure disposed between the mounting base and the rotating component. The rotating component is provided with a handle connecting groove and a rotating sliding part disposed around the handle connecting groove. In use, the mounting base is fixed to the door, and the handle is inserted into the handle connecting groove to drive the rotating component to rotate and realize the opening or closing of the door lock. In this application, the rotating sliding part is rotatably disposed in the rotating track, and the rotating track and the rotating sliding part are precisely matched without play, which can prevent the rotating component from swaying along the axial direction. At the same time, the reset structure is disposed between the mounting base and the rotating component. When the handle is inserted into the handle connecting groove for use, the force is on the mounting base and the handle, and the internal reset structure is not subjected to force, so that it can withstand greater tensile force and is more secure, thus extending the service life.
[0023] This application also discloses a door handle, including the door handle fixing base as described above and a handle. The handle is provided with a handle connecting protrusion that can extend into the handle connecting groove. A limiting protrusion and a limiting groove that match the limiting protrusion are provided between the handle connecting groove and the handle connecting protrusion. When the handle connecting protrusion extends into the handle connecting groove, the limiting protrusion and the limiting groove cooperate to restrict the rotation of the handle relative to the rotating part. The handle is easy to disassemble and replace, and the handle can be replaced with one that corresponds to the door body according to the actual use, making it more versatile.
[0024] Meanwhile, the limiting protrusion is a wedge-shaped protrusion extending radially along the wall of the handle connecting groove, and the limiting groove is a wedge-shaped groove provided on the side wall of the handle connecting protrusion and corresponding to and matching the limiting protrusion. The limiting protrusion is axially provided on the wall of the handle connecting groove, and the cross-sectional area of the limiting protrusion gradually increases from the opening of the handle connecting groove towards the bottom of the handle connecting groove. This allows the limiting protrusion to extend into the limiting groove as the handle connecting protrusion extends into the handle connecting groove, and the outer wall of the limiting protrusion gradually locks into the wall of the limiting groove. The structure is compact and stable, avoiding the gap between the handle and the handle connecting groove that could cause shaking. [Attached Image Description]
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0026] Figure 1 This is a schematic diagram of the structure of the door handle fixing base in a specific embodiment of this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the mounting base in a specific embodiment of this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the hidden base cover for the door handle fixing base in a specific embodiment of this utility model;
[0029] Figure 4 This is an exploded structural diagram of the door handle fixing base in a specific embodiment of the present utility model;
[0030] Figure 5 This is an exploded structural diagram of the door handle fixing base in a specific embodiment of the present utility model;
[0031] Figure 6 This is an exploded view of the door handle in a specific embodiment of the present utility model;
[0032] Figure 7 This is an exploded view of the door handle in a specific embodiment of the present invention.
Detailed Implementation Methods
[0033] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0034] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.
[0036] Specific embodiments, such asFigures 1-7 The door handle fixing base shown includes: a mounting base 1 for mounting on a door, the mounting base 1 having a mounting cavity 2 and a rotating track 3; a rotating component 4 rotatably disposed in the mounting cavity 2, the rotating component 4 having a handle connecting groove 5 and a rotating sliding part 6 disposed around the handle connecting groove 5, the rotating sliding part 6 being rotatably disposed in the rotating track 3, the rotating track 3 being used to limit the axial displacement and swaying of the rotating component 4; and a reset structure 7 disposed between the mounting base 1 and the rotating component 4 for driving the rotating component 4 to reset. In use, the mounting base is fixed to the door, and the handle is inserted into the handle connecting slot to drive the rotating part to rotate and open or close the door lock. The rotating sliding part of this application is rotatably set in the rotating track, and the rotating track and the rotating sliding part are precisely matched without any play, which can prevent the rotating part from swaying along the axial direction. At the same time, the reset structure is set between the mounting base and the rotating part. When the handle is inserted into the handle connecting slot, the force is on the mounting base and the handle, and the internal reset structure is not subjected to force, so that it can withstand greater tensile force and is more secure, thus extending its service life.
[0037] Specifically, the mounting base 1 includes: a mounting part 11, on the side away from the door, having a recessed rotating groove 31 communicating with the mounting cavity 2; the rotating sliding part 6 having a shape matching the rotating groove 31 and rotatably mounted on the rotating groove 31; and a base cover 12, located on the side of the mounting part 11 away from the door. The base cover 12 and the rotating groove 31 together form the rotating track 3, used to restrict the axial displacement and swaying of the rotating component 4 together with the mounting part 11. During assembly, the rotating component 4 is installed in the mounting cavity 2, and the rotating sliding part 6 is movably mounted on the rotating groove 31. Then, the base cover 12 is sealed, which is both aesthetically pleasing and prevents impurities from entering, thus extending the service life.
[0038] More specifically, the mounting part 11 is provided with a first mounting hole 81 and a first positioning hole 82 on the periphery of the rotating groove 31. The base cover 12 is provided with a second mounting hole 83 corresponding to the first mounting hole 81 and a first positioning pin 84 corresponding to and matching the first positioning hole 82. When the first positioning pin 84 is inserted into the first positioning hole 82, the second mounting hole 83 corresponds to the first mounting hole 81. This makes assembly more convenient.
[0039] Furthermore, the mounting part 11 is recessed on the side away from the door, and a limiting notch 9 communicating with the rotating groove 31 is provided. The rotating sliding part 6 is provided with a first limiting end 61 and a second limiting end 62 that can move within the limiting notch 9. The rotating sliding part 6 can rotate forward on the rotating groove 31 until the first limiting end 61 abuts against the groove wall of the limiting notch 9, or rotate in the opposite direction until the second limiting end 62 abuts against the groove wall of the limiting notch 9, so as to restrict the rotation of the rotating part 4.
[0040] More specifically, the reset structure 7 includes a torsion spring mounting groove 71 on the rotating member 4, a clearance groove 72 for connecting the torsion spring mounting groove 71 and the limiting groove 9, and a reset torsion spring 73 in the torsion spring mounting groove 71. The reset torsion spring 73 has torsion spring limiting parts 731 at both ends. The torsion spring limiting parts 731 pass through the clearance groove 72 and can move within the limiting groove 9. When the rotating sliding part 6 rotates on the rotating groove 31, the groove wall of the clearance groove 72 abuts against the corresponding torsion spring limiting part 731 and pushes the torsion spring limiting part 731 to move within the limiting groove 9. When the torsion spring limiting part 731 at the end of the reset torsion spring 73 is reset, it pushes the rotating sliding part 6 to rotate and reset, making it more convenient to use.
[0041] Furthermore, there are two clearance slots 72, which are offset vertically on the rotating member 4, so that the two torsion spring limiting parts 731 of the reset torsion spring 73 are installed in an offset vertical position.
[0042] This utility model also discloses a door handle, including the aforementioned door handle fixing base and a handle 10. The handle 10 is provided with a handle connecting protrusion 13 that can extend into a handle connecting groove 5. A limiting protrusion 141 and a limiting groove 142 that matches the limiting protrusion 141 are provided between the handle connecting groove 5 and the handle connecting protrusion 13. When the handle connecting protrusion 13 extends into the handle connecting groove 5, the limiting protrusion 141 and the limiting groove 142 cooperate to restrict the rotation of the handle 10 relative to the rotating part 4. The handle is easy to disassemble and replace, and can be replaced with a handle corresponding to the door body according to actual use, thus having greater versatility.
[0043] Specifically, the limiting protrusion 141 is a wedge-shaped protrusion extending radially along the wall of the handle connecting groove 5, and the limiting groove 142 is a wedge-shaped groove located on the side wall of the handle connecting protrusion 13 and corresponding to and matching the limiting protrusion 141. The limiting protrusion 141 is axially located on the wall of the handle connecting groove 5, and the cross-sectional area of the limiting protrusion 141 gradually increases from the opening of the handle connecting groove 5 towards the bottom of the groove. As the handle connecting protrusion 13 extends into the handle connecting groove 5, the limiting protrusion 141 extends into the limiting groove 142, and the outer wall of the limiting protrusion 141 gradually engages with the wall of the limiting groove 142. The structure is compact and stable, preventing wobbling caused by gaps between the handle and the handle connecting groove.
[0044] More specifically, the door handle also includes an outer cover 15 mounted on the mounting base 1. The inner wall of the outer cover 15 has an internal thread 161, and the outer wall of the mounting base 1 has an external thread 162 that meshes with the internal thread 161. The outer cover 15 is rotatably fitted onto the handle connecting protrusion 13. The side wall of the handle connecting protrusion 13 has a limiting ring groove 17 and a limiting retaining ring 18 that is engaged in the limiting ring groove 17. When the handle connecting protrusion 13 extends into the handle connecting groove 5 and the outer cover 15 is connected to the mounting base 1, the outer cover 15 abuts against the limiting retaining ring 18 to prevent the handle connecting protrusion 13 from disengaging from the handle connecting groove 5. During the tightening process of the outer cover 15 and the mounting base 1, the wedge-shaped groove on the handle and the wedge-shaped protrusion on the rotating part 4 combine and become increasingly tight, resulting in a compact and stable structure that avoids wobbling caused by gaps between the handle and the handle connecting groove.
[0045] The above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to different industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.
Claims
1. A door handle fixing base, characterized in that, include: Mounting base (1) for mounting on a door, wherein the mounting base (1) is provided with mounting cavity (2) and rotating track (3); A rotating component (4) is rotatably disposed in the mounting cavity (2). The rotating component (4) is provided with a handle connecting groove (5) and a rotating sliding part (6) disposed on the periphery of the handle connecting groove (5). The rotating sliding part (6) is rotatably disposed in the rotating track (3). The rotating track (3) is used to limit the axial displacement and swaying of the rotating component (4). The reset structure (7) is located between the mounting base (1) and the rotating part (4) and is used to drive the rotating part (4) to reset.
2. The door handle fixing base according to claim 1, characterized in that, The mounting base (1) includes: The mounting part (11) has a rotating groove (31) that communicates with the mounting cavity (2) on the side away from the door. The shape of the rotating sliding part (6) matches the rotating groove (31) and is rotatably mounted on the rotating groove (31). A base cover (12) is provided on the side of the mounting part (11) away from the door. The base cover (12) and the rotating groove (31) together form the rotating track (3), which is used to restrict the axial displacement and swaying of the rotating part (4) together with the mounting part (11).
3. A door handle fixing base according to claim 2, characterized in that, The mounting part (11) is provided with a first mounting hole (81) and a first positioning hole (82) on the periphery of the rotating groove (31). The base cover (12) is provided with a second mounting hole (83) corresponding to the first mounting hole (81) and a first positioning pin (84) corresponding to and matching the first positioning hole (82). When the first positioning pin (84) is inserted into the first positioning hole (82), the second mounting hole (83) corresponds to the first mounting hole (81).
4. A door handle fixing base according to claim 2, characterized in that, The mounting part (11) is recessed on the side away from the door, and a limiting notch (9) communicating with the rotating groove (31) is provided. The rotating sliding part (6) is provided with a first limiting end (61) and a second limiting end (62) that can move in the limiting notch (9). The rotating sliding part (6) can rotate forward on the rotating groove (31) until the first limiting end (61) abuts against the groove wall of the limiting notch (9), or rotate in the opposite direction until the second limiting end (62) abuts against the groove wall of the limiting notch (9).
5. A door handle fixing base according to claim 4, characterized in that, The reset structure (7) includes a torsion spring mounting groove (71) on the rotating member (4), a clearance groove (72) for connecting the torsion spring mounting groove (71) and the limiting groove (9), and a reset torsion spring (73) in the torsion spring mounting groove (71). The reset torsion spring (73) has torsion spring limiting parts (731) at both ends. The torsion spring limiting parts (731) pass through the clearance groove (72) and can move in the limiting groove (9). When the rotating sliding part (6) rotates on the rotating groove (31), the groove wall of the clearance groove (72) abuts against the corresponding torsion spring limiting part (731) and pushes the torsion spring limiting part (731) to move in the limiting groove (9). When the torsion spring limiting part (731) at the end of the reset torsion spring (73) is reset, it pushes the rotating sliding part (6) to rotate and reset.
6. A door handle fixing base according to claim 5, characterized in that, The number of the clearance notches (72) is two, and they are offset vertically on the rotating part (4) so that the two torsion spring limiting parts (731) of the reset torsion spring (73) are installed vertically offset.
7. A door handle, characterized in that, The device includes a door handle fixing base as described in any one of claims 1-6, and a handle (10). The handle (10) is provided with a handle connecting protrusion (13) that can extend into the handle connecting groove (5). A limiting protrusion (141) and a limiting groove (142) that matches the limiting protrusion (141) are provided between the handle connecting groove (5) and the handle connecting protrusion (13). When the handle connecting protrusion (13) extends into the handle connecting groove (5), the limiting protrusion (141) and the limiting groove (142) cooperate to restrict the handle (10) from rotating relative to the rotating member (4).
8. A door handle according to claim 7, characterized in that, The limiting protrusion (141) is a wedge-shaped protrusion extending radially along the wall of the handle connecting groove (5). The limiting groove (142) is a wedge-shaped groove provided on the side wall of the handle connecting protrusion (13) and corresponding to and matching the limiting protrusion (141). The limiting protrusion (141) is provided axially on the wall of the handle connecting groove (5). The cross-sectional area of the limiting protrusion (141) gradually increases along the opening of the handle connecting groove (5) towards the bottom of the handle connecting groove (5). As the handle connecting protrusion (13) extends into the handle connecting groove (5), the limiting protrusion (141) extends into the limiting groove (142), and the outer wall of the limiting protrusion (141) gradually clamps with the wall of the limiting groove (142).
9. A door handle according to claim 8, characterized in that, It also includes an outer cover (15) covering the mounting base (1), the inner wall of the outer cover (15) is provided with a connecting internal thread (161), and the outer wall of the mounting base (1) is provided with a connecting external thread (162) that meshes with the connecting internal thread (161).
10. A door handle according to claim 9, characterized in that, The outer cover (15) is rotatably sleeved on the handle connecting protrusion (13). The side wall of the handle connecting protrusion (13) is provided with a limiting ring groove (17) and a limiting retaining ring (18) locked in the limiting ring groove (17). When the handle connecting protrusion (13) extends into the handle connecting groove (5) and the outer cover (15) is connected to the mounting base (1), the outer cover (15) abuts against the limiting retaining ring (18) to restrict the handle connecting protrusion (13) from disengaging from the handle connecting groove (5).