Friction type folding mirror

Abstract

The utility model relates to the technical field of vehicle manufacturing, in particular to a friction type folding mirror. Comprising a ball head rod and a mounting base, and an inward-protruding friction ring is arranged in a ring sleeve on the lower portion of the mounting base; a first end cover integrated with the ball head rod is arranged at the upper end of the ball head rod, a mounting shaft with a bolt hole is arranged on the inner surface of the first end cover, the mounting shaft penetrates through the inner protruding friction ring, and a bolt is screwed with the mounting shaft; a first metal dome spring and a first friction ring are sequentially arranged between the first end cover and the inner protruding friction ring, and a second friction ring, a second metal dome spring and a second end cover are sequentially arranged between the inner protruding friction ring and the bolt head. A first limiting mechanism is arranged between the inner surface of the first end cover and the first friction ring, a second limiting mechanism is arranged between the inner surface of the second end cover and the second friction ring, and a third limiting mechanism is arranged between the second end cover and the ball head rod. Stepless adjustment of different heights of the folding mirror is achieved through friction rotation of the friction ring, installation is easy, complete folding can be achieved, and noise is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a friction type folding mirror. Background Art

[0002] The rearview mirror of a car is used to provide the driver with rear view information so that the driver can observe the situation behind the vehicle in a timely and accurate manner. It plays an important role in car driving. In order to meet the different needs of drivers, the existing folding rearview mirror can be adjusted in height according to drivers of different heights by setting the base and the mirror head as a rotating connection, and the mirror head can be folded when not in use; but the rotating connection adopts a toothed disc meshing rotation. When adjusting, the meshing teeth will collide and mesh with each other, which will generate noise, and there is a certain meshing angle between the meshing teeth. If it is not installed in place, it cannot be completely folded. Its installation requirements are strict, and it cannot be infinitely adjusted. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a friction type folding mirror, and the technical solution adopted by the utility model is as follows:

[0004] A friction-type folding mirror comprises a ball head rod and a mounting seat, wherein the mounting seat comprises a ring sleeve at the lower part thereof, and is characterized in that: an inner protruding friction ring fixedly connected to the ring sleeve is arranged inside the ring sleeve; a first end cover integral with the ball head rod is arranged at the upper end thereof, a mounting shaft with a bolt hole is arranged on the inner surface of the first end cover, the mounting shaft passes through the inner protruding friction ring, and the bolt is screwed into the bolt hole on the mounting shaft; a first pot spring and a first friction ring are arranged in sequence between the first end cover and the inner protruding friction ring, and a second friction ring, a second pot spring and a second end cover are arranged in sequence between the inner protruding friction ring and the bolt head; a first limiting mechanism passing through the gap of the first pot spring is arranged between the inner surface of the first end cover and the first friction ring, a second limiting mechanism passing through the gap of the second pot spring is arranged between the inner surface of the second end cover and the second friction ring, and a third limiting mechanism is arranged between the second end cover and the ball head rod; the diameters of the first end cover and the second end cover are larger than the inner diameter of the ring sleeve.

[0005] Furthermore, the first limiting mechanism includes at least one first guide protrusion arranged on the inner surface of the first end cover and a first guide hole arranged on the outer end surface of the first friction ring and movably cooperates with the first guide protrusion; the first guide protrusion passes between two adjacent legs of the first pot spring; the second limiting mechanism includes at least one second guide protrusion arranged on the inner end surface of the second end cover and a second guide hole arranged on the outer end surface of the second friction ring and movably cooperates with the second guide protrusion; the second guide protrusion passes between two adjacent legs of the second pot spring.

[0006] Furthermore, the first guide hole and the second guide hole are countersunk holes.

[0007] Furthermore, a first spring mounting groove with a consistent contour is provided on the inner surface of the first end cover, and its size is larger than the projection size of the first pot leaf spring on the first end cover in the natural state; a second spring mounting groove with a consistent contour is provided on the inner end surface of the second end cover, and its size is larger than the projection size of the second pot leaf spring on the second end cover in the natural state.

[0008] Furthermore, a first groove is provided on the inner surface of the first end cover, and the first guide protrusion and the first spring mounting groove are both provided in the first groove; a second groove is provided on the inner surface of the second end cover, and the second guide protrusion and the second spring mounting groove are both provided in the second groove.

[0009] Furthermore, the middle portion of the first pot spring faces the first end cover, and its legs face the first friction ring; the middle portion of the second pot spring faces the second end cover, and its legs face the second friction ring.

[0010] Furthermore, a surface cooperating with the ring sleeve and the second end cover is arranged on one side of the upper end of the ball head rod and the first end cover, and the third limiting mechanism includes a third protrusion arranged on the circumference of the second end cover and a third limiting groove arranged on the upper end of the ball head rod.

[0011] Furthermore, an anti-drop protrusion is arranged on the ball head at the lower end of the ball head rod.

[0012] Beneficial effects of the utility model:

[0013] 1. The utility model adopts a friction ring for rotational connection, and the two end surfaces of the inner protruding friction ring fixedly connected in the ring sleeve at the lower part of the mounting seat cooperate to contact the first and second friction rings, and the guide holes on the first and second friction rings cooperate to connect with the guide columns on the inner surfaces of the first and second end covers respectively to limit their rotation; wherein the first end cover and the second end cover are fixedly connected by bolts, and the mounting seat is fixedly connected to the roof of the car, thereby realizing the friction rotation of the first and second friction rings relative to the inner protruding friction ring.

[0014] 2. Pot springs are arranged between the first and second friction rings and the first and second end covers respectively. The pot springs on both sides are located in the mounting grooves of the first and second end covers to limit their rotation. The tensioning force is used to provide rotation space for the friction rings. Without being restricted by the meshing teeth, stepless adjustment can be achieved and it can be completely folded without noise when in use. It has a simple structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial cross-sectional view of the right side of the utility model;

[0016] Figure 2 for Figure 1Sectional view in the AA direction;

[0017] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0018] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of an embodiment of the utility model;

[0019] Figure 5 is a left-side structural schematic diagram of the second end cover;

[0020] In the figure, 1, ball head rod, 11, first end cover, 12, mounting shaft, 13, first groove, 14, first guide protrusion, 15, first spring mounting groove, 16, third limit groove, 17, anti-slip protrusion, 2, first pot leaf spring, 3, first friction ring, 31, first guide hole, 4, mounting seat, 41, ring sleeve, 42, inner protruding friction ring, 43, screw through hole, 5, second friction ring, 51, second guide hole, 6, second pot leaf spring, 7, second end cover, 71, third protrusion, 72, countersunk through hole, 73, second groove, 74, second guide protrusion, 75, second spring mounting groove, 8, bolt, 9, folding mirror housing, 10, ball head seat. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with specific embodiments. Figure 4 The components of this embodiment are defined with the axis of symmetry of the mounting seat 4 as the center, wherein the surfaces of the first end cover 11 and the second end cover 7 facing the mounting seat 4 are inner surfaces, and the surfaces of other components perpendicular to the horizontal axis are collectively referred to as end surfaces, which are divided into outer end surfaces and inner end surfaces relative to the axis of symmetry of the mounting seat 4, and the circumferential surface is the circumferential surface.

[0022] As shown in the figure, this embodiment includes a ball head rod 1 and a mounting seat 4, wherein the mounting seat 4 includes a ring sleeve 41 at the lower part and a fixed part integrated with the ring sleeve 41 at the upper part, wherein a screw through hole 43 is provided at the top of the fixed part, which is fixedly connected to the roof of the car by screws so that the mounting seat 4 is fixed; an inner protruding friction ring 42 fixedly connected to the ring sleeve 41 at the lower part of the mounting seat 4 is provided inside the ring sleeve 41, which is located at the center of the inner surface of the ring sleeve 41, and the two end faces of the inner protruding friction ring 42 respectively match the inner end faces of the first friction ring 3 and the second friction ring 5, and the first friction ring 3 and the second friction ring 5 are located inside the ring sleeve 41.

[0023] The upper end of the ball head rod 1 of this embodiment is provided with a first end cover 11 which is integrated with it. The inner surface of the first end cover 11 is provided with a mounting shaft 12 with a bolt hole. The mounting shaft 12 passes through the inner protruding friction ring 42, and the bolt 8 is screwed with the bolt hole of the mounting shaft 12. The first pot spring 2 and the first friction ring 3 are arranged in sequence between the first end cover 11 and the inner protruding friction ring 42, and the second friction ring 5, the second pot spring 6 and the second end cover 7 are arranged in sequence between the inner protruding friction ring 42 and the bolt head. The diameters of the first end cover 11 and the second end cover 7 are larger than the inner diameter of the ring sleeve 41. The ball head at the lower end of the ball head rod 1 is provided with an anti-slip protrusion 17, which plays a blocking role when the ball head cooperates with the inner cavity of the ball head seat 10, thereby preventing the ball head from slipping out of the ball head seat 10, that is, preventing the ball head rod 1 from detaching from the folding mirror housing 9, thereby achieving reliable connection.

[0024] The inner surfaces of the first end cover 11 and the second end cover 7 of the ball head rod 1 are respectively provided with a first groove 13 and a second groove 73, which respectively match the diameters of the first friction ring 3 and the second friction ring 5, providing a certain rotation space for the first friction ring 3 and the second friction ring 5 relative to the inner protruding friction ring 42 in the ring sleeve 41, and the second end cover 7 is provided with a countersunk through hole 72 to cooperate with the bolt 8.

[0025] The first groove 13 and the second groove 73 are respectively provided with a first spring installation groove 15 and a second spring installation groove 75 with the same contour, whose size is larger than the projection size of the first pot spring 2 and the second pot spring 6 on the first end cover 11 and the second end cover 7 in the natural state, and the middle parts of the first pot spring 2 and the second pot spring 6 are respectively facing the inner surface of the first end cover 11 and the second end cover 7, and are respectively located in the first spring installation groove 15 and the second spring installation groove 75, and the first pot spring 2 and the second pot spring 6 feet are respectively facing the outer end surfaces of the first friction ring 3 and the second friction ring 5. This cooperation plays a stable support and is conducive to rotation.

[0026] In this embodiment, three first guide protrusions 14 and second guide protrusions 74 are respectively provided in the first groove 13 and the second groove 73, and are respectively located between the two legs of the first spring mounting groove 15 and the second spring mounting groove 75 which are consistent with the contours of the first pot spring 2 and the second pot spring 6.

[0027] The first guide protrusion 14 in the first groove 13 passes through the two adjacent legs of the first pot spring 2 and movably cooperates with the first guide hole 31 on the outer end surface of the first friction ring 3 to form a first limiting mechanism; the second guide protrusion 74 in the second groove 73 passes through the two adjacent legs of the second pot spring 6 and movably cooperates with the second guide hole 51 on the outer end surface of the second friction ring 5 to form a second limiting mechanism.

[0028] The first guide hole 31 and the second guide hole 51 are countersunk holes and do not affect the friction surfaces of the first friction ring 3 and the second friction ring 5 .

[0029] In this embodiment, the upper end of the ball head rod 1 and one side of the first end cover 11 are provided with surfaces that cooperate with the ring sleeve 41 and the second end cover 7. The third protrusion 71 arranged on the peripheral surface of the second end cover 7 and the third limiting groove 16 arranged on the upper end of the ball head rod 1 and the matching surface of the ring sleeve 41 and the second end cover 7 constitute a third limiting mechanism; the third limiting groove 16 is a T-shaped groove, which runs through the upper end of the ball head rod 1 and the matching surface of the ring sleeve 41 and the second end cover 7, thereby reducing the overall weight while ensuring stress; the step surface of the T-shaped groove cooperates with the end face of the third protrusion 71 to play a limiting role.

[0030] The first limiting mechanism, the second limiting mechanism and the third limiting mechanism of the present embodiment limit and fix the first end cover 11 of the ball head rod 1, the first pot spring 2, the first friction ring 3, the second friction ring 5, the second pot spring 6 and the second end cover 7, and the mounting seat 4 is connected to the roof and fixed; the ball head rod 1 is pulled, and under the action of the tensioning force of the first pot spring 2 and the second pot spring 6, the friction rotation and fixation of the first friction ring 3 and the second friction ring 5 relative to the inner protruding friction ring 42 are realized, so that the folding mirror can be infinitely adjusted at different heights, and the installation is simple and can be completely folded without noise.

[0031] It is noted here that other parts of this embodiment are prior art and will not be described in detail here.

Claims

1. A friction folding mirror, comprising a ball head rod and a mounting seat, wherein the mounting seat comprises a ring sleeve at the lower part thereof, and is characterized in that: An inwardly protruding friction ring fixedly connected to the ring sleeve is arranged inside the ring sleeve; a first end cover integrated with the ball head rod is arranged at the upper end thereof, a mounting shaft with a bolt hole is arranged on the inner surface of the first end cover, the mounting shaft passes through the inwardly protruding friction ring, and the bolt is screwed into the bolt hole on the mounting shaft; a first pot spring and a first friction ring are arranged in sequence between the first end cover and the inwardly protruding friction ring, and a second friction ring, a second pot spring and a second end cover are arranged in sequence between the inwardly protruding friction ring and the bolt head; a first limiting mechanism passing through the gap of the first pot spring is arranged between the inner surface of the first end cover and the first friction ring, a second limiting mechanism passing through the gap of the second pot spring is arranged between the inner surface of the second end cover and the second friction ring, and a third limiting mechanism is arranged between the second end cover and the ball head rod; the diameters of the first end cover and the second end cover are larger than the inner diameter of the ring sleeve.

2. The friction folding mirror according to claim 1, characterized in that: The first limiting mechanism includes at least one first guide protrusion arranged on the inner surface of the first end cover and a first guide hole arranged on the outer end surface of the first friction ring and movably cooperates with the first guide protrusion; the first guide protrusion passes between two adjacent legs of the first pot sheet spring; the second limiting mechanism includes at least one second guide protrusion arranged on the inner end surface of the second end cover and a second guide hole arranged on the outer end surface of the second friction ring and movably cooperates with the second guide protrusion; the second guide protrusion passes between two adjacent legs of the second pot sheet spring.

3. The friction folding mirror according to claim 2, characterized in that: The first guide hole and the second guide hole are countersunk holes.

4. The friction folding mirror according to claim 2 or 3, characterized in that: The inner surface of the first end cover is provided with a first spring mounting groove with a consistent contour, and its size is larger than the projection size of the first pot leaf spring on the first end cover in the natural state; the inner end surface of the second end cover is provided with a second spring mounting groove with a consistent contour, and its size is larger than the projection size of the second pot leaf spring on the second end cover in the natural state.

5. The friction type folding mirror according to claim 4, characterized in that: The inner surface of the first end cover is provided with a first groove, and the first guide protrusion and the first spring installation groove are both arranged in the first groove; the inner surface of the second end cover is provided with a second groove, and the second guide protrusion and the second spring installation groove are both arranged in the second groove.

6. The friction folding mirror according to claim 1, 2 or 3, characterized in that: The middle portion of the first pot spring faces the first end cover, and its legs face the first friction ring; the middle portion of the second pot spring faces the second end cover, and its legs face the second friction ring.

7. The friction folding mirror according to claim 1, 2 or 3, characterized in that: The upper end of the ball head rod and one side of the first end cover are provided with a surface matching with the ring sleeve and the second end cover, and the third limiting mechanism includes a third protrusion provided on the circumference of the second end cover and a third limiting groove provided on the upper end of the ball head rod.

8. The friction folding mirror according to claim 1, 2 or 3, characterized in that: An anti-drop protrusion is arranged on the ball head at the lower end of the ball head rod.

Images