Limiting structure of automobile switch operating member

Abstract

The utility model belongs to the field of automobile accessories, and particularly relates to an automobile switch operating member limiting structure, which comprises a limiting shaft and a limiting hole, the limiting shaft is rotatably mounted in the limiting hole, the limiting shaft comprises a cylindrical main positioning part, the limiting hole comprises a main supporting part matched with the cylindrical main positioning part, and the main supporting part is rotatably mounted in the limiting hole. The main supporting part is internally provided with at least three main supporting planes which are annularly distributed at intervals and main transition surfaces connected between the adjacent main supporting planes, the main supporting planes are in transition fit with the main positioning part, and a gap d1 is formed between each main transition surface and the main positioning part. The main supporting plane and the main positioning part which are in transition matching are arranged, the gap between the main supporting plane and the main positioning part is controlled, the shaking amount of the control piece is reduced, and the situation that the matching face is too large, the size is not easy to control, and operation of the control piece is blocked can be avoided through matching of the multiple sections of planes and the circumferential face.

Description

Technical Field

[0001] The utility model belongs to the field of automobile accessories, and in particular relates to a limiting structure of an automobile switch operating part. Background Art

[0002] With the development of automobiles, people are pursuing higher and higher quality for automobiles, and the requirements for the comfort of operating combination switches (control switches) are also increasing, especially in terms of the feel and sound of the handle operation. At present, the handle is fixed by a handle bracket, and limiting holes are provided on both sides of the handle bracket. Two limiting shafts are correspondingly provided on the inner side of the shell. The limiting shafts and limiting holes cooperate to enable the handle bracket to rotate relative to the shell. If no gap is set in this limiting structure of the limiting shaft and the limiting hole, a huge rotational force needs to be applied to drive the handle, which is laborious to operate. If a gap is set, the handle can be driven to rotate effortlessly. Therefore, the current limiting structure of the automobile switch operating part is realized by a limiting shaft and a limiting hole with a clearance fit. However, this clearance fit may cause the handle bracket to swing to a certain extent relative to the shell. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a limit structure for a switch operating member of an automobile.

[0004] The technical solution adopted by the present utility model is as follows: a limiting structure for a switch operating part of an automobile, including a limiting shaft and a limiting hole, the limiting shaft can be rotatably installed in the limiting hole, the limiting shaft includes a cylindrical main positioning part, the limiting hole includes a main supporting part that cooperates with the cylindrical main positioning part, the main supporting part has at least three main supporting planes distributed in an annular manner and a main transition surface connected between adjacent main supporting planes, the main supporting plane is transitionally matched with the main positioning part, and a gap d1 is formed between the main transition surface and the main positioning part.

[0005] The main supporting portion has three main supporting planes therein, and the three main supporting planes and the main positioning portion form a triangular supporting point structure.

[0006] d1=0.1mm-0.3mm.

[0007] The main transition surface is a concentric arc.

[0008] The limiting shaft includes a cylindrical auxiliary positioning portion, the auxiliary positioning portion is concentrically arranged with the main positioning portion, and the outer diameter of the auxiliary positioning portion is smaller than the outer diameter of the main positioning portion;

[0009] The limiting hole includes a secondary supporting portion that cooperates with the secondary positioning portion.

[0010] The auxiliary positioning portion is clearance-matched with the auxiliary supporting portion.

[0011] The auxiliary supporting portion has at least three auxiliary supporting planes distributed in an annular manner and an auxiliary transition surface connected between adjacent auxiliary supporting planes. The auxiliary supporting planes are gap-matched with the auxiliary positioning part, and a gap d3 is formed between the auxiliary transition surface and the auxiliary positioning part.

[0012] The gap d2 between the auxiliary supporting plane and the auxiliary positioning portion is 0.02mm-0.15mm. d3 = 0.1mm-0.3mm.

[0013] The auxiliary supporting plane is staggered with the main supporting plane.

[0014] It includes an upper shell, a lower shell, and a handle bracket. The upper shell and the lower shell are fixedly connected. A limiting hole is provided on both sides of the handle bracket. A limiting shaft is provided on the upper shell and the lower shell respectively.

[0015] The beneficial effects of the present invention are as follows: the present invention sets a transition-matched main supporting plane and a main positioning part, controls the gap between the main supporting plane and the main positioning part, reduces the shaking amount of the operating part, and the cooperation of the multi-segment plane and the circumferential surface can avoid the matching surface being too large, resulting in the size being difficult to control and causing the operating part to be stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0017] Figure 1 This is a schematic structural diagram of an automobile switch according to an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of an automobile switch according to an embodiment of the present invention;

[0019] Figure 3 This is an enlarged schematic diagram of a partial structure of a handle bracket in one embodiment of the present utility model;

[0020] Figure 4 This is an enlarged schematic diagram of a partial structure of the upper shell in one embodiment of the present utility model;

[0021] Figure 5 This is an enlarged schematic diagram of a local structure of the lower shell in one embodiment of the present utility model;

[0022] Figure 6This is a schematic diagram of the coordination structure of the upper shell, the lower shell, and the handle bracket in one embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the coordination structure between the main supporting plane and the main positioning part in one embodiment of the utility model;

[0024] Figure 8 This is a schematic diagram of the coordination structure between the auxiliary positioning portion and the auxiliary supporting portion in one embodiment of the present utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0026] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0027] The directional and positional terms used in this invention, such as up, down, front, back, left, right, inside, outside, top, bottom, and side, are merely references to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are intended to illustrate and facilitate understanding of this invention and are not intended to limit the scope of protection of this invention.

[0028] Figure 1 、 Figure 2 The figure shows an automobile switch, which includes an upper shell 300, a lower shell 400, and a handle bracket 500. The handle bracket 500 is used to fix the handle. The upper shell 300 and the lower shell 400 are respectively located on both sides of the handle bracket 500 and are fixedly connected to form a rotatable limiting structure for the handle bracket 500. Specifically, the upper shell 300 and the lower shell 400 can be connected together by threaded fasteners.

[0029] like Figure 3 As shown, the handle bracket 500 has two connecting plates 510 arranged opposite to each other, and the two connecting plates 510 are respectively provided with a first limiting hole 210 and a second limiting hole 220. Figure 4 、 Figure 5 As shown, the upper shell 300 is provided with an upper support ear 310, and the upper support ear 310 forms a protruding upper limit axis 110. The lower shell 400 is provided with a lower support ear 410, and the lower support ear 410 forms a protruding lower limit axis 120. Figure 6As shown, the upper support ear 310 and the lower support ear 410 are respectively located on the outside of the two connecting plates 510, and the upper limit shaft 110 and the lower limit shaft 120 extend into the first limit hole 210 and the second limit hole 220 respectively, forming a rotatable support limit for the handle bracket 500.

[0030] Specifically, such as Figure 4 As shown, the upper limit axis 110 located on the upper shell 300 includes a cylindrical first main positioning portion 111 and a cylindrical first auxiliary positioning portion 112. The first auxiliary positioning portion 112 is concentrically arranged with the first main positioning portion 111 and the outer diameter of the first auxiliary positioning portion 112 is smaller than the outer diameter of the first main positioning portion 111. The first limiting hole 210 matched therewith is respectively provided with a main support portion 211 and an auxiliary support portion 214. Figure 5 As shown, the lower limiting shaft 120 located in the lower housing 400 also includes a cylindrical second main positioning portion 121 and a cylindrical second secondary positioning portion 122. The second secondary positioning portion 122 is concentrically arranged with the second main positioning portion 121 and has an outer diameter smaller than that of the second main positioning portion 121. The second limiting hole 220 that cooperates therewith is also respectively provided with a main support portion 211 and a secondary support portion 214. The structure of the second limiting hole 220 and the coordination structure with the second main positioning portion 121 and the second secondary positioning portion 122 are basically the same as those of the first limiting hole 210.

[0031] Specifically, the corresponding structure is introduced by taking the structure of the upper limit shaft 110 and the first limit hole 210 as an example. Figure 7 As shown, the main support portion 211 has at least three main support planes 212 distributed in an annular manner and main transition surfaces 213 connected between adjacent main support planes 212, as shown in FIG. Figure 7 As shown, the main support plane 212 transitions with the first main positioning portion 111, and a gap d1 is formed between the main transition surface 213 and the first main positioning portion 111. To achieve a transition between the main support plane 212 and the first main positioning portion 111, even if the tolerance zone set by the vertical distance from the main support plane 212 to the axis overlaps with the tolerance zone set by the radius of the first main positioning portion 111, the gap between the two is controlled to be as close to zero as possible under existing production conditions to provide a certain degree of stability. This arrangement provides a stable support for the outer circumference of the first main positioning portion 111 via the main support plane 212, forming a multi-segment line-surface matching structure, avoiding the possibility of jamming of the operating member due to the mating surface being too large and difficult to control.

[0032] Furthermore, the main supporting portion 211 has three main supporting planes 212 therein, and the three main supporting planes 212 and the first main positioning portion 111 form a triangular supporting point structure.

[0033] Furthermore, the size range of d1 is effectively controlled to make d1 = 0.1 mm - 0.3 mm. In this way, the non-matching area between the main support portion 211 and the first main positioning portion 111 can form an oil storage cavity to store grease and avoid abnormal movement noise.

[0034] Furthermore, the main transition surface 213 is a concentric arc, which is convenient for processing.

[0035] Furthermore, the first auxiliary positioning portion 112 and the auxiliary supporting portion 214 are provided with clearance fit, and the first auxiliary positioning portion 112 and the auxiliary supporting portion 214 are provided with clearance fit, which can play a role in auxiliary positioning and reduce the shaking amount of the operating member.

[0036] like Figure 8 As shown, the auxiliary support portion 214 has at least three auxiliary support planes 215 distributed in a ring-shaped manner and an auxiliary transition surface 216 connected between adjacent auxiliary support planes 215. The auxiliary support planes 215 are gap-matched with the first auxiliary positioning portion 112, and a gap d3 is formed between the auxiliary transition surface 216 and the first auxiliary positioning portion 112.

[0037] The gap between the first auxiliary positioning portion 112 and the auxiliary support portion 214 is controlled. Specifically, the gap d2 between the auxiliary support plane 215 and the first auxiliary positioning portion 112 is 0.02mm-0.15mm, and d3 is 0.1mm-0.3mm. This not only assists in positioning, but also forms an oil reservoir to store grease and prevent abnormal movement noise.

[0038] Further, such as Figure 3 As shown, the auxiliary support planes 215 are staggered with the main support plane 212 to provide a better auxiliary effect. Specifically, there are also three auxiliary support planes 215, with three main support planes 212 and three auxiliary support planes 215 equally spaced, and the main support planes 212 and auxiliary support planes 215 are staggered.

[0039] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A limit structure for a switch operating member of an automobile, comprising a limit shaft (110, 120) and a limit hole (210, 220), wherein the limit shaft (110, 120) is rotatably mounted in the limit hole (210, 220), and characterized in that: The limiting shaft (110, 120) includes a cylindrical main positioning portion (111, 121), and the limiting hole (210, 220) includes a main supporting portion (211) matched with the cylindrical main positioning portion (111, 121). The main supporting portion (211) has at least three main supporting planes (212) distributed in an annular manner and a main transition surface (213) connected between adjacent main supporting planes (212). The main supporting planes (212) transitionally match the main positioning portion (111, 121), and a gap d1 is formed between the main transition surface (213) and the main positioning portion (111, 121).

2. The automobile switch operating member limiting structure according to claim 1, characterized in that: The main supporting portion (211) has three main supporting planes (212), and the three main supporting planes (212) and the main positioning portions (111, 121) form a triangular supporting point structure.

3. The automobile switch operating member limiting structure according to claim 1, characterized in that: d1=0.1mm-0.3mm.

4. The automobile switch operating member limiting structure according to claim 3, characterized in that: The main transition surface (213) is a concentric arc.

5. The automobile switch operating member limiting structure according to claim 1, characterized in that: The limiting shaft (110, 120) comprises a cylindrical auxiliary positioning portion (112, 122), the auxiliary positioning portion (112, 122) is concentrically arranged with the main positioning portion (111, 121), and the outer diameter of the auxiliary positioning portion (112, 122) is smaller than the outer diameter of the main positioning portion (111, 121); The limiting hole (210, 220) includes a secondary supporting portion (214) that cooperates with the secondary positioning portion (112, 122).

6. The automobile switch operating member limiting structure according to claim 5, characterized in that: The auxiliary positioning portion (112, 122) is clearance-matched with the auxiliary supporting portion (214).

7. The automobile switch operating member limiting structure according to claim 6, characterized in that: The auxiliary supporting portion (214) has at least three auxiliary supporting planes (215) distributed in an annular manner and an auxiliary transition surface (216) connected between adjacent auxiliary supporting planes (215); the auxiliary supporting planes (215) are gap-matched with the auxiliary positioning portions (112, 122); and a gap d3 is formed between the auxiliary transition surface (216) and the auxiliary positioning portions (112, 122).

8. The automobile switch operating member limiting structure according to claim 7, characterized in that: The gap d2 between the auxiliary supporting plane (215) and the auxiliary positioning portion (112, 122) is 0.02mm-0.15m, and d3 is 0.1mm-0.3mm.

9. The automobile switch operating member limiting structure according to claim 7, characterized in that: The auxiliary support plane (215) is staggered with the main support plane (212).

10. The automobile switch operating member limiting structure according to any one of claims 1 to 9, characterized in that: The invention comprises an upper shell (300), a lower shell (400), and a handle bracket (500); the upper shell (300) and the lower shell (400) are fixedly connected; a limiting hole (210, 220) is provided on both sides of the handle bracket (500); and a limiting shaft (110, 120) is provided on the upper shell (300) and the lower shell (400) respectively.

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