Outer rearview mirror lens rotation limiting structure

Abstract

The utility model relates to the field of automobile part structures, and discloses an outside rear-view mirror lens rotation limiting structure which comprises a fixing assembly and an adjusting assembly, the fixing assembly comprises a base and a fixing bowl, the base is provided with a limiting groove and a mounting part, the fixing bowl comprises a first hemispherical surface, and the side, away from the sphere center, of the first hemispherical surface is fixedly connected with the mounting part; the adjusting assembly comprises a movable bowl, the movable bowl comprises a second hemispherical surface concentric with the first hemispherical surface, the second hemispherical surface is slidably arranged on the side, away from the sphere center, of the first hemispherical surface, a limiting pin is fixed to the side, close to the sphere center, of the second hemispherical surface, the limiting pin is a cylinder with the outer diameter equal to the width of the limiting groove, and the limiting pin can slide or rotate in the limiting groove. Through the design of the shape of the limiting pin and the width of the limiting groove, the rotating shaft of the movable bowl is always limited in the plane where the limiting groove is located, so that the lens is limited to rotate around the axis of the sphere center on the basis of ensuring the adjusting function of rotation of the lens around the sphere center, and the product texture is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessory structures, in particular to a rotation limiting structure for an exterior rearview mirror lens. Background Art

[0002] The adjustment function of the wide-angle lens of the exterior rearview mirror is achieved through the sliding movement between the ball head and the lens support plate. To ensure that the lens rotates only around the center of the ball and avoids rotation around the axis passing through the center of the ball, existing products add a limit post on the ball head. This prismatic limit post snaps into the wedge-shaped groove in the ball bowl to prevent the lens from rotating at a large angle around the axis of the ball center. However, to ensure the lens rotates around the center of the ball, the width of the limit post must be smaller than the width of the bowl groove, which cannot achieve complete limit. As a result, the lens will still rotate at a small angle around the axis of the ball center, which manifests as lens adjustment clearance and affects the product quality. Utility Model Content

[0003] The utility model aims to provide a rotation limiting structure for an exterior rearview mirror lens, so as to prevent the lens from rotating around the spherical center axis and improve the lens adjustment quality.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a rotation limiting structure of an exterior rearview mirror lens, including a fixing component and an adjusting component, the fixing component including a base and a fixing bowl, a limiting groove and a mounting portion are provided on the base, the fixing bowl including a first hemispherical surface, the first hemispherical surface is fixedly connected to the mounting portion away from the center of the sphere, the adjusting component including a movable bowl, the movable bowl including a second hemispherical surface concentric with the first hemispherical surface, the second hemispherical surface is slidingly arranged on the side of the first hemispherical surface away from the center of the sphere, and a limiting pin is fixed on the side of the second hemispherical surface close to the center of the sphere, the limiting pin is a cylinder with an outer diameter equal to the width of the limiting groove, and the limiting pin can slide or rotate in the limiting groove.

[0005] The beneficial effect of this solution is: by designing the shape of the limit pin and the width of the limit groove, the rotating axis of the movable bowl is always restricted within the plane where the limit groove is located, thereby limiting the rotation of the lens around the axis of the spherical center while ensuring the lens's rotation adjustment function around the spherical center, thereby avoiding the problem of affecting the product texture due to the lens adjustment clearance.

[0006] Furthermore, the mounting portion includes a mounting post, the fixed bowl is fixedly connected to the mounting post and abuts against the movable bowl, and a mounting hole is provided on the movable bowl, the diameter of the mounting hole is larger than the outer diameter of the mounting post.

[0007] Beneficial effect: Through the setting of the mounting column and the mounting hole, the movable bowl and the fixed bowl are sequentially mounted on the mounting column, the fixed bowl is fixedly connected to the mounting column and the first hemispherical surface is offset against the second hemispherical surface, thereby ensuring the rotation flexibility of the movable bowl while ensuring the connection stability of the movable bowl.

[0008] Furthermore, the mounting portion further includes a mounting groove coaxially arranged with the mounting column, and the mounting groove is a third hemispherical surface concentric with the first hemispherical surface and the second hemispherical surface.

[0009] Beneficial effect: The arrangement of the mounting groove can increase the contact area between the side of the movable bowl away from the center of the ball and the base, thereby improving the connection stability between the movable bowl and the base.

[0010] Furthermore, the fixing assembly also includes a connecting piece, and the fixing bowl is fixedly connected to the mounting column through the connecting piece. A spring is sleeved on the mounting column, and one end of the spring abuts against the fixing bowl, and the other end abuts against the connecting piece.

[0011] Beneficial effect: During adjustment, under the action of the external force and the spring, the fixed bowl and the movable bowl can slide relative to each other, so that the movable bowl can be relatively away from the base, making the adjustment process more flexible. After the adjustment is completed, the external force is removed, and under the action of the spring, the fixed bowl and the movable bowl are pressed tightly, so that the movable bowl is stuck between the fixed bowl and the base. Under the action of friction, the movable bowl maintains the adjusted state.

[0012] Furthermore, the adjustment component also includes a mirror holder, on which a lens is fixed, and the mirror holder can be detachably fixed to the movable bowl.

[0013] Furthermore, the detachable manner is a snap connection or a bolt connection.

[0014] Beneficial effects: the lens is fixed on the lens holder, and the lens holder is detachably mounted on the movable bowl, so when the lens is damaged, it is easy to replace and repair.

[0015] Furthermore, two sets of protrusions are symmetrically arranged on the base, each set of protrusions including a first contact surface and a second contact surface. The first and second contact surfaces are parallel to each other, forming a limiting groove. The outer diameter of the limiting pin is equal to the distance between the first and second contact surfaces, thereby preventing the limiting pin from wobbling between the first and second contact surfaces in the limiting groove, ensuring that the lens support plate does not rotate clockwise or counterclockwise, thereby preventing the lens from rotating at a small angle around the center axis of the sphere, which can cause lens adjustment clearance and affect product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly of the mirror holder and the movable bowl according to the embodiment of the utility model;

[0018] Figure 3 This is a three-dimensional diagram of an embodiment of the present invention with the mirror holder removed. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] The figure marks in the drawings of the specification include: base 1, limiting groove 11, mounting column 12, movable bowl 2, limiting pin 21, second hemispherical surface 22, clamping part 23, fixed bowl 3, spring 4, gasket 5, screw 6, mirror support 7, and buckle 71.

[0021] Example 1

[0022] Example 1 is basically as shown in the attached Figure 1-3 As shown, Figure 1-3 The rotation limiting structure of the exterior rearview mirror shown in FIG. includes a fixing component and an adjusting component, such as Figure 1 As shown, the fixing assembly includes a base 1, a connecting piece and a fixed bowl 3. In this embodiment, the connecting piece includes a spring 4, a gasket 5 and a screw 6, and the adjusting assembly includes a movable bowl 2 and a mirror holder 7.

[0023] like Figure 1 As shown, a mounting portion is provided at the center of the base 1, and the mounting portion includes a mounting groove and a mounting column 12. The surface of the mounting groove is a hemispherical surface. The mounting column 12 is provided at the center of the base 1 and coincides with the axis of the hemispherical surface where the mounting groove is located. Two groups of protrusions are symmetrically provided on both sides of the base 1, and each group of protrusions includes a first contact surface and a second contact surface. The first contact surface and the second contact surface are parallel to each other to form a limiting groove.

[0024] The fixed bowl 3 includes a first hemispherical surface. A first mounting hole is provided on the side of the first hemispherical surface away from the center of the sphere. The diameter of the first mounting hole is adapted to the outer diameter of the mounting column 12 .

[0025] Combine Figure 1 、 Figure 2 It can be seen that the movable bowl 2 includes an integrally formed second hemispherical surface 22, a clamping portion 23 and a limiting pin 21. The second hemispherical surface 22 is provided with a second mounting hole on the side away from the center of the sphere. The aperture of the second mounting hole is larger than the outer diameter of the mounting column 12 and smaller than the radius of the first hemispherical surface. The clamping portion 23 and the limiting pin 21 are both provided on the second hemispherical surface 22 close to the center of the sphere. The second hemispherical surface 22 is provided with a mounting hole on the side away from the center of the sphere. The limiting pin 21 is cylindrical, and the diameter of the cylinder is adapted to the width of the limiting groove 11, that is, the diameter of the pin is equal to the distance between the first contact surface and the second contact surface, so as to ensure that after the movable bowl 2 is assembled, the movable bowl 2 is limited to rotate around the axis of the mounting column 12 to avoid the lens adjustment looseness affecting the product texture.

[0026] The rear side of the mirror holder 7 is integrally formed with a buckle 71. When installing, Figure 2 As shown, the mirror holder 7 is clamped to the clamping portion 23 by means of the buckle 71 to complete the installation of the mirror holder 7 .

[0027] The specific implementation process is as follows:

[0028] During assembly, first, install the movable bowl 2 and the fixed bowl 3 onto the mounting post 12 through the first mounting hole and the second mounting hole in sequence, ensuring that the limit post is located in the limit groove 11; then, install the spring 4, gasket 5 and screw 6 onto the mounting post 12 in sequence, and through the action of the spring 4, the fixed bowl 3 is pressed against the movable bowl 2 to form a Figure 3 The installation structure shown; after that, as Figure 3 As shown, the mirror holder 7 is connected to the movable bowl 2 by means of a buckle 71 .

[0029] During adjustment, the limit pin 21 is located in the limit groove 11, and the mutually symmetrical limit pins 21 slide in opposite directions along the limit groove 11 under the spherical restriction of the fixed bowl 3 to complete the left and right rotation function of the lens support plate; the limit pin 21 rotates along the cylindrical axis to complete the up and down rotation function of the lens support plate; the cylindrical outer diameter of the limit pin 21 is equal to the width of the limit groove 11, thereby preventing the limit pin 21 from shaking between the first contact surface and the second contact surface of the limit groove 11, ensuring that the lens support plate will not rotate clockwise / counterclockwise.

[0030] The above is only an embodiment of the present invention, and common knowledge such as the well-known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the present invention can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rotation limiting structure for an exterior rearview mirror, characterized in that: It includes a fixing component and an adjusting component. The fixing component includes a base and a fixed bowl. A limiting groove and a mounting portion are provided on the base. The fixed bowl includes a first hemispherical surface. The first hemispherical surface is fixedly connected to the mounting portion away from the center of the ball. The adjusting component includes a movable bowl. The movable bowl includes a second hemispherical surface concentric with the first hemispherical surface. The second hemispherical surface is slidingly arranged on the side of the first hemispherical surface away from the center of the ball. A limiting pin is fixed on the side of the second hemispherical surface close to the center of the ball. The limiting pin is a cylinder with an outer diameter equal to the width of the limiting groove. The limiting pin can slide or rotate in the limiting groove.

2. The rotation limiting structure of the exterior rearview mirror according to claim 1, characterized in that: The mounting portion includes a mounting column, a fixed bowl fixedly connected to the mounting column and abutting against the movable bowl, and a mounting hole is provided on the movable bowl, the diameter of the mounting hole is larger than the outer diameter of the mounting column.

3. The rotation limiting structure of the exterior rearview mirror according to claim 2, characterized in that: The mounting portion further includes a mounting groove coaxially arranged with the mounting column, and a surface of the mounting groove is a hemispherical surface concentric with the first hemispherical surface and the second hemispherical surface.

4. The rotation limiting structure for an exterior rearview mirror according to claim 3, characterized in that: The fixing assembly also includes a connecting piece, through which the fixing bowl is fixedly connected to the mounting post. A spring is sleeved on the mounting post, one end of the spring abuts against the fixing bowl, and the other end abuts against the connecting piece.

5. The rotation limiting structure for an exterior rearview mirror according to claim 4, characterized in that: The adjustment component also includes a mirror holder, which is detachably fixed on the movable bowl.

6. The rotation limiting structure for an exterior rearview mirror according to claim 5, characterized in that: The detachable mode is a snap connection or a bolt connection.

7. The rotation limiting structure for an exterior rearview mirror according to claim 1, characterized in that: Two groups of protrusions are symmetrically arranged on the base, and each group of protrusions includes a first contact surface and a second contact surface. The first contact surface and the second contact surface are parallel to each other to form a limiting groove.

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